MDedge Neurology

ABU DHABI, UAE — The long-standing debate as to when to start anticoagulation in patients with an acute ischemic stroke and atrial fibrillation (AF) looks as though it’s settled.

Results of the OPTIMAS trial, the largest trial to address this question, showed that initiation of a direct oral anticoagulant (DOAC) within 4 days after ischemic stroke associated with AF was noninferior to delayed initiation (7-14 days) for the composite outcome of ischemic stroke, intracranial hemorrhage, unclassifiable stroke, or systemic embolism at 90 days. Importantly, early DOAC initiation was safe with a low rate of symptomatic hemorrhage, regardless of stroke severity.

In addition, a new meta-analysis, known as CATALYST, which included all four randomized trials now available on this issue, showed a clear benefit of earlier initiation (within 4 days) versus later (5 days and up) on its primary endpoint of new ischemic stroke, symptomatic intracerebral hemorrhage, and unclassified stroke at 30 days.

The results of the OPTIMAS trial and the meta-analysis were both presented at the 16th World Stroke Congress (WSC) 2024. The OPTIMAS trial was also simultaneously published online in The Lancet.

“Our findings do not support the guideline recommended practice of delaying DOAC initiation after ischemic stroke with AF regardless of clinical stroke severity, reperfusion or prior anticoagulation,” said OPTIMAS investigator David Werring, PhD, University College London in England.

Presenting the meta-analysis, Signild Åsberg, MD, Uppsala University, Uppsala, Sweden, said his group’s findings “support the early start of DOACs (within 4 days) in clinical practice.”

Werring pointed out that starting anticoagulation early also had important logistical advantages.

“This means we can start anticoagulation before patients are discharged from hospital, thus ensuring that this important secondary prevention medication is always prescribed, when appropriate. That’s going to be a key benefit in the real world.”
 

Clinical Dilemma

Werring noted that AF accounts for 20%-30% of ischemic strokes, which tend to be more severe than other stroke types. The pivotal trials of DOACs did not include patients within 30 days of an acute ischemic stroke, creating a clinical dilemma on when to start this treatment.

“On the one hand, we wish to start anticoagulation early to reduce early recurrence of ischemic stroke. But on the other hand, there are concerns that if we start anticoagulation early, it could cause intracranial bleeding, including hemorrhagic transformation of the acute infarct. Guidelines on this issue are inconsistent and have called for randomized control trials in this area,” he noted.

So far, three randomized trials on DOAC timing have been conducted, which Werring said suggested early DOAC treatment is safe. However, these trials have provided limited data on moderate to severe stroke, patients with hemorrhagic transformation, or those already taking oral anticoagulants — subgroups in which there are particular concerns about early oral anticoagulation.

The OPTIMAS trial included a broad population of patients with acute ischemic stroke associated with AF including these critical subgroups.

The trial, conducted at 100 hospitals in the United Kingdom, included 3648 patients with AF and acute ischemic stroke who were randomly assigned to early (≤ 4 days from stroke symptom onset) or delayed (7-14 days) anticoagulation initiation with any DOAC.

There was no restriction on stroke severity, and patients with hemorrhagic transformation were allowed, with the exception of parenchymal hematoma type 2, a rare and severe type of hemorrhagic transformation.

Approximately 35% of patients had been taking an oral anticoagulant, mainly DOACs, prior to their stroke, and about 30% had revascularization with thrombolysis, thrombectomy, or both. Nearly 900 participants (25%) had moderate to severe stroke (National Institutes of Health Stroke Scale [NIHSS] score ≥ 11).

The primary outcome was a composite of recurrent ischemic stroke, symptomatic intracranial hemorrhage, unclassifiable stroke, or systemic embolism incidence at 90 days. The initial analysis aimed to show noninferiority of early DOAC initiation, with a noninferiority margin of 2 percentage points, followed by testing for superiority.

Results showed that the primary outcome occurred in 3.3% of both groups (adjusted risk difference, 0.000; 95% CI, −0.011 to 0.012), with noninferiority criteria fulfilled. Superiority was not achieved.

Symptomatic intracranial hemorrhage occurred in 0.6% of patients in the early DOAC initiation group vs 0.7% of those in the delayed group — a nonsignificant difference.
 

Applicable to Real-World Practice

A time-to-event analysis of the primary outcome showed that there were fewer outcomes in the first 30 days in the early DOAC initiation group, but the curves subsequently came together.

Subgroup analysis showed consistent results across all whole trial population, with no modification of the effect of early DOAC initiation according to stroke severity, reperfusion treatment, or previous anticoagulation.

Werring said that strengths of the OPTIMAS trial included a large sample size, a broad population with generalizability to real-world practice, and the inclusion of patients at higher bleeding risk than included in previous studies.

During the discussion, it was noted that the trial included few (about 3%) patients — about 3% — with very severe stroke (NIHSS score > 21), with the question of whether the findings could be applied to this group.

Werring noted that there was no evidence of heterogeneity, and if anything, patients with more severe strokes may have had a slightly greater benefit with early DOAC initiation. “So my feeling is probably these results do generalize to the more severe patients,” he said.

In a commentary accompanying The Lancet publication of the OPTIMAS trial, Else Charlotte Sandset, MD, University of Oslo, in Norway, and Diana Aguiar de Sousa, MD, Central Lisbon University Hospital Centre, Lisbon, Portugal, noted that the “increasing body of evidence strongly supports the message that initiating anticoagulation early for patients with ischaemic stroke is safe. The consistent absence of heterogeneity in safety outcomes suggests that the risk of symptomatic intracranial haemorrhage is not a major concern, even in patients with large infarcts.”

Regardless of the size of the treatment effect, initiating early anticoagulation makes sense when it can be done safely, as it helps prevent recurrent ischemic strokes and other embolic events. Early intervention reduces embolization risk, particularly in high-risk patients, and allows secondary prevention measures to begin while patients are still hospitalized, they added.
 

CATALYST Findings

The CATALYST meta-analysis included four trials, namely, TIMING, ELAN, OPTIMAS, and START, of early versus later DOAC administration in a total of 5411 patients with acute ischemic stroke and AF. In this meta-analysis, early was defined as within 4 days of stroke and later as 5 days or more.

The primary outcome was a composite of ischemic stroke, symptomatic, intracerebral hemorrhage, or unclassified stroke at 30 days. This was significantly reduced in the early group (2.12%) versus 3.02% in the later group, giving an odds ratio of 0.70 (95% CI, 0.50-0.98; P =.04).

The results were consistent across all subgroups, all suggesting an advantage for early DOAC.

Further analysis showed a clear benefit of early DOAC initiation in ischemic stroke with the curves separating early.

The rate of symptomatic intracerebral hemorrhage was low in both groups (0.45% in the early group and 0.40% in the later group) as was extracranial hemorrhage (0.45% vs 0.55%).

At 90 days, there were still lower event rates in the early group than the later one, but the difference was no longer statistically significant.
 

‘Practice Changing’ Results

Commenting on both studies, chair of the WSC session where the results of both OPTIMAS trial and the meta-analysis were presented, Craig Anderson, MD, The George Institute for Global Health, Sydney, Australia, described these latest results as “practice changing.”

“When to start anticoagulation in acute ischemic stroke patients with AF has been uncertain for a long time. The dogma has always been that we should wait. Over the years, we’ve become a little bit more confident, but now we’ve got good data from randomized trials showing that early initiation is safe, with the meta-analysis showing benefit,” he said.

“These new data from OPTIMAS will reassure clinicians that there’s no excessive harm and, more importantly, no excessive harm across all patient groups. And the meta-analysis clearly showed an upfront benefit of starting anticoagulation early. That’s a very convincing result,” he added.

Anderson cautioned that there still may be concerns about starting DOACs early in some groups, including Asian populations that have a higher bleeding risk (these trials included predominantly White patients) and people who are older or frail, who may have extensive small vessel disease.

During the discussion, several questions centered on the lack of imaging data available on the patients in the studies. Anderson said imaging data would help reassure clinicians on the safety of early anticoagulation in patients with large infarcts.

“Stroke clinicians make decisions on the basis of the patient and on the basis of the brain, and we only have the patient information at the moment. We don’t have information on the brain — that comes from imaging.”

Regardless, he believes these new data will lead to a shift in practice. “But maybe, it won’t be as dramatic as we would hope because I think some clinicians may still hesitate to apply these results to patients at high risk of bleeding. With imaging data from the studies that might change.”

The OPTIMAS trial was funded by University College London and the British Heart Foundation. Werring reported consulting fees from Novo Nordisk, National Institute for Health and Care Excellence, and Alnylam; payments or speaker honoraria from Novo Nordisk, Bayer, and AstraZeneca/Alexion; participation on a data safety monitoring board for the OXHARP trial; and participation as steering committee chair for the MACE-ICH and PLINTH trials. Åsberg received institutional research grants and lecture fees to her institution from AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, and Institut Produits Synthése. Sandset and de Sousa were both steering committee members of the ELAN trial. Anderson reported grant funding from Penumbra and Takeda China.
 

A version of this article appeared on Medscape.com.

ABU DHABI, UAE — The long-standing debate as to when to start anticoagulation in patients with an acute ischemic stroke and atrial fibrillation (AF) looks as though it’s settled.

Results of the OPTIMAS trial, the largest trial to address this question, showed that initiation of a direct oral anticoagulant (DOAC) within 4 days after ischemic stroke associated with AF was noninferior to delayed initiation (7-14 days) for the composite outcome of ischemic stroke, intracranial hemorrhage, unclassifiable stroke, or systemic embolism at 90 days. Importantly, early DOAC initiation was safe with a low rate of symptomatic hemorrhage, regardless of stroke severity.

In addition, a new meta-analysis, known as CATALYST, which included all four randomized trials now available on this issue, showed a clear benefit of earlier initiation (within 4 days) versus later (5 days and up) on its primary endpoint of new ischemic stroke, symptomatic intracerebral hemorrhage, and unclassified stroke at 30 days.

The results of the OPTIMAS trial and the meta-analysis were both presented at the 16th World Stroke Congress (WSC) 2024. The OPTIMAS trial was also simultaneously published online in The Lancet.

“Our findings do not support the guideline recommended practice of delaying DOAC initiation after ischemic stroke with AF regardless of clinical stroke severity, reperfusion or prior anticoagulation,” said OPTIMAS investigator David Werring, PhD, University College London in England.

Presenting the meta-analysis, Signild Åsberg, MD, Uppsala University, Uppsala, Sweden, said his group’s findings “support the early start of DOACs (within 4 days) in clinical practice.”

Werring pointed out that starting anticoagulation early also had important logistical advantages.

“This means we can start anticoagulation before patients are discharged from hospital, thus ensuring that this important secondary prevention medication is always prescribed, when appropriate. That’s going to be a key benefit in the real world.”
 

Clinical Dilemma

Werring noted that AF accounts for 20%-30% of ischemic strokes, which tend to be more severe than other stroke types. The pivotal trials of DOACs did not include patients within 30 days of an acute ischemic stroke, creating a clinical dilemma on when to start this treatment.

“On the one hand, we wish to start anticoagulation early to reduce early recurrence of ischemic stroke. But on the other hand, there are concerns that if we start anticoagulation early, it could cause intracranial bleeding, including hemorrhagic transformation of the acute infarct. Guidelines on this issue are inconsistent and have called for randomized control trials in this area,” he noted.

So far, three randomized trials on DOAC timing have been conducted, which Werring said suggested early DOAC treatment is safe. However, these trials have provided limited data on moderate to severe stroke, patients with hemorrhagic transformation, or those already taking oral anticoagulants — subgroups in which there are particular concerns about early oral anticoagulation.

The OPTIMAS trial included a broad population of patients with acute ischemic stroke associated with AF including these critical subgroups.

The trial, conducted at 100 hospitals in the United Kingdom, included 3648 patients with AF and acute ischemic stroke who were randomly assigned to early (≤ 4 days from stroke symptom onset) or delayed (7-14 days) anticoagulation initiation with any DOAC.

There was no restriction on stroke severity, and patients with hemorrhagic transformation were allowed, with the exception of parenchymal hematoma type 2, a rare and severe type of hemorrhagic transformation.

Approximately 35% of patients had been taking an oral anticoagulant, mainly DOACs, prior to their stroke, and about 30% had revascularization with thrombolysis, thrombectomy, or both. Nearly 900 participants (25%) had moderate to severe stroke (National Institutes of Health Stroke Scale [NIHSS] score ≥ 11).

The primary outcome was a composite of recurrent ischemic stroke, symptomatic intracranial hemorrhage, unclassifiable stroke, or systemic embolism incidence at 90 days. The initial analysis aimed to show noninferiority of early DOAC initiation, with a noninferiority margin of 2 percentage points, followed by testing for superiority.

Results showed that the primary outcome occurred in 3.3% of both groups (adjusted risk difference, 0.000; 95% CI, −0.011 to 0.012), with noninferiority criteria fulfilled. Superiority was not achieved.

Symptomatic intracranial hemorrhage occurred in 0.6% of patients in the early DOAC initiation group vs 0.7% of those in the delayed group — a nonsignificant difference.
 

Applicable to Real-World Practice

A time-to-event analysis of the primary outcome showed that there were fewer outcomes in the first 30 days in the early DOAC initiation group, but the curves subsequently came together.

Subgroup analysis showed consistent results across all whole trial population, with no modification of the effect of early DOAC initiation according to stroke severity, reperfusion treatment, or previous anticoagulation.

Werring said that strengths of the OPTIMAS trial included a large sample size, a broad population with generalizability to real-world practice, and the inclusion of patients at higher bleeding risk than included in previous studies.

During the discussion, it was noted that the trial included few (about 3%) patients — about 3% — with very severe stroke (NIHSS score > 21), with the question of whether the findings could be applied to this group.

Werring noted that there was no evidence of heterogeneity, and if anything, patients with more severe strokes may have had a slightly greater benefit with early DOAC initiation. “So my feeling is probably these results do generalize to the more severe patients,” he said.

In a commentary accompanying The Lancet publication of the OPTIMAS trial, Else Charlotte Sandset, MD, University of Oslo, in Norway, and Diana Aguiar de Sousa, MD, Central Lisbon University Hospital Centre, Lisbon, Portugal, noted that the “increasing body of evidence strongly supports the message that initiating anticoagulation early for patients with ischaemic stroke is safe. The consistent absence of heterogeneity in safety outcomes suggests that the risk of symptomatic intracranial haemorrhage is not a major concern, even in patients with large infarcts.”

Regardless of the size of the treatment effect, initiating early anticoagulation makes sense when it can be done safely, as it helps prevent recurrent ischemic strokes and other embolic events. Early intervention reduces embolization risk, particularly in high-risk patients, and allows secondary prevention measures to begin while patients are still hospitalized, they added.
 

CATALYST Findings

The CATALYST meta-analysis included four trials, namely, TIMING, ELAN, OPTIMAS, and START, of early versus later DOAC administration in a total of 5411 patients with acute ischemic stroke and AF. In this meta-analysis, early was defined as within 4 days of stroke and later as 5 days or more.

The primary outcome was a composite of ischemic stroke, symptomatic, intracerebral hemorrhage, or unclassified stroke at 30 days. This was significantly reduced in the early group (2.12%) versus 3.02% in the later group, giving an odds ratio of 0.70 (95% CI, 0.50-0.98; P =.04).

The results were consistent across all subgroups, all suggesting an advantage for early DOAC.

Further analysis showed a clear benefit of early DOAC initiation in ischemic stroke with the curves separating early.

The rate of symptomatic intracerebral hemorrhage was low in both groups (0.45% in the early group and 0.40% in the later group) as was extracranial hemorrhage (0.45% vs 0.55%).

At 90 days, there were still lower event rates in the early group than the later one, but the difference was no longer statistically significant.
 

‘Practice Changing’ Results

Commenting on both studies, chair of the WSC session where the results of both OPTIMAS trial and the meta-analysis were presented, Craig Anderson, MD, The George Institute for Global Health, Sydney, Australia, described these latest results as “practice changing.”

“When to start anticoagulation in acute ischemic stroke patients with AF has been uncertain for a long time. The dogma has always been that we should wait. Over the years, we’ve become a little bit more confident, but now we’ve got good data from randomized trials showing that early initiation is safe, with the meta-analysis showing benefit,” he said.

“These new data from OPTIMAS will reassure clinicians that there’s no excessive harm and, more importantly, no excessive harm across all patient groups. And the meta-analysis clearly showed an upfront benefit of starting anticoagulation early. That’s a very convincing result,” he added.

Anderson cautioned that there still may be concerns about starting DOACs early in some groups, including Asian populations that have a higher bleeding risk (these trials included predominantly White patients) and people who are older or frail, who may have extensive small vessel disease.

During the discussion, several questions centered on the lack of imaging data available on the patients in the studies. Anderson said imaging data would help reassure clinicians on the safety of early anticoagulation in patients with large infarcts.

“Stroke clinicians make decisions on the basis of the patient and on the basis of the brain, and we only have the patient information at the moment. We don’t have information on the brain — that comes from imaging.”

Regardless, he believes these new data will lead to a shift in practice. “But maybe, it won’t be as dramatic as we would hope because I think some clinicians may still hesitate to apply these results to patients at high risk of bleeding. With imaging data from the studies that might change.”

The OPTIMAS trial was funded by University College London and the British Heart Foundation. Werring reported consulting fees from Novo Nordisk, National Institute for Health and Care Excellence, and Alnylam; payments or speaker honoraria from Novo Nordisk, Bayer, and AstraZeneca/Alexion; participation on a data safety monitoring board for the OXHARP trial; and participation as steering committee chair for the MACE-ICH and PLINTH trials. Åsberg received institutional research grants and lecture fees to her institution from AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, and Institut Produits Synthése. Sandset and de Sousa were both steering committee members of the ELAN trial. Anderson reported grant funding from Penumbra and Takeda China.
 

A version of this article appeared on Medscape.com.

ABU DHABI, UAE — The long-standing debate as to when to start anticoagulation in patients with an acute ischemic stroke and atrial fibrillation (AF) looks as though it’s settled.

Results of the OPTIMAS trial, the largest trial to address this question, showed that initiation of a direct oral anticoagulant (DOAC) within 4 days after ischemic stroke associated with AF was noninferior to delayed initiation (7-14 days) for the composite outcome of ischemic stroke, intracranial hemorrhage, unclassifiable stroke, or systemic embolism at 90 days. Importantly, early DOAC initiation was safe with a low rate of symptomatic hemorrhage, regardless of stroke severity.

In addition, a new meta-analysis, known as CATALYST, which included all four randomized trials now available on this issue, showed a clear benefit of earlier initiation (within 4 days) versus later (5 days and up) on its primary endpoint of new ischemic stroke, symptomatic intracerebral hemorrhage, and unclassified stroke at 30 days.

The results of the OPTIMAS trial and the meta-analysis were both presented at the 16th World Stroke Congress (WSC) 2024. The OPTIMAS trial was also simultaneously published online in The Lancet.

“Our findings do not support the guideline recommended practice of delaying DOAC initiation after ischemic stroke with AF regardless of clinical stroke severity, reperfusion or prior anticoagulation,” said OPTIMAS investigator David Werring, PhD, University College London in England.

Presenting the meta-analysis, Signild Åsberg, MD, Uppsala University, Uppsala, Sweden, said his group’s findings “support the early start of DOACs (within 4 days) in clinical practice.”

Werring pointed out that starting anticoagulation early also had important logistical advantages.

“This means we can start anticoagulation before patients are discharged from hospital, thus ensuring that this important secondary prevention medication is always prescribed, when appropriate. That’s going to be a key benefit in the real world.”
 

Clinical Dilemma

Werring noted that AF accounts for 20%-30% of ischemic strokes, which tend to be more severe than other stroke types. The pivotal trials of DOACs did not include patients within 30 days of an acute ischemic stroke, creating a clinical dilemma on when to start this treatment.

“On the one hand, we wish to start anticoagulation early to reduce early recurrence of ischemic stroke. But on the other hand, there are concerns that if we start anticoagulation early, it could cause intracranial bleeding, including hemorrhagic transformation of the acute infarct. Guidelines on this issue are inconsistent and have called for randomized control trials in this area,” he noted.

So far, three randomized trials on DOAC timing have been conducted, which Werring said suggested early DOAC treatment is safe. However, these trials have provided limited data on moderate to severe stroke, patients with hemorrhagic transformation, or those already taking oral anticoagulants — subgroups in which there are particular concerns about early oral anticoagulation.

The OPTIMAS trial included a broad population of patients with acute ischemic stroke associated with AF including these critical subgroups.

The trial, conducted at 100 hospitals in the United Kingdom, included 3648 patients with AF and acute ischemic stroke who were randomly assigned to early (≤ 4 days from stroke symptom onset) or delayed (7-14 days) anticoagulation initiation with any DOAC.

There was no restriction on stroke severity, and patients with hemorrhagic transformation were allowed, with the exception of parenchymal hematoma type 2, a rare and severe type of hemorrhagic transformation.

Approximately 35% of patients had been taking an oral anticoagulant, mainly DOACs, prior to their stroke, and about 30% had revascularization with thrombolysis, thrombectomy, or both. Nearly 900 participants (25%) had moderate to severe stroke (National Institutes of Health Stroke Scale [NIHSS] score ≥ 11).

The primary outcome was a composite of recurrent ischemic stroke, symptomatic intracranial hemorrhage, unclassifiable stroke, or systemic embolism incidence at 90 days. The initial analysis aimed to show noninferiority of early DOAC initiation, with a noninferiority margin of 2 percentage points, followed by testing for superiority.

Results showed that the primary outcome occurred in 3.3% of both groups (adjusted risk difference, 0.000; 95% CI, −0.011 to 0.012), with noninferiority criteria fulfilled. Superiority was not achieved.

Symptomatic intracranial hemorrhage occurred in 0.6% of patients in the early DOAC initiation group vs 0.7% of those in the delayed group — a nonsignificant difference.
 

Applicable to Real-World Practice

A time-to-event analysis of the primary outcome showed that there were fewer outcomes in the first 30 days in the early DOAC initiation group, but the curves subsequently came together.

Subgroup analysis showed consistent results across all whole trial population, with no modification of the effect of early DOAC initiation according to stroke severity, reperfusion treatment, or previous anticoagulation.

Werring said that strengths of the OPTIMAS trial included a large sample size, a broad population with generalizability to real-world practice, and the inclusion of patients at higher bleeding risk than included in previous studies.

During the discussion, it was noted that the trial included few (about 3%) patients — about 3% — with very severe stroke (NIHSS score > 21), with the question of whether the findings could be applied to this group.

Werring noted that there was no evidence of heterogeneity, and if anything, patients with more severe strokes may have had a slightly greater benefit with early DOAC initiation. “So my feeling is probably these results do generalize to the more severe patients,” he said.

In a commentary accompanying The Lancet publication of the OPTIMAS trial, Else Charlotte Sandset, MD, University of Oslo, in Norway, and Diana Aguiar de Sousa, MD, Central Lisbon University Hospital Centre, Lisbon, Portugal, noted that the “increasing body of evidence strongly supports the message that initiating anticoagulation early for patients with ischaemic stroke is safe. The consistent absence of heterogeneity in safety outcomes suggests that the risk of symptomatic intracranial haemorrhage is not a major concern, even in patients with large infarcts.”

Regardless of the size of the treatment effect, initiating early anticoagulation makes sense when it can be done safely, as it helps prevent recurrent ischemic strokes and other embolic events. Early intervention reduces embolization risk, particularly in high-risk patients, and allows secondary prevention measures to begin while patients are still hospitalized, they added.
 

CATALYST Findings

The CATALYST meta-analysis included four trials, namely, TIMING, ELAN, OPTIMAS, and START, of early versus later DOAC administration in a total of 5411 patients with acute ischemic stroke and AF. In this meta-analysis, early was defined as within 4 days of stroke and later as 5 days or more.

The primary outcome was a composite of ischemic stroke, symptomatic, intracerebral hemorrhage, or unclassified stroke at 30 days. This was significantly reduced in the early group (2.12%) versus 3.02% in the later group, giving an odds ratio of 0.70 (95% CI, 0.50-0.98; P =.04).

The results were consistent across all subgroups, all suggesting an advantage for early DOAC.

Further analysis showed a clear benefit of early DOAC initiation in ischemic stroke with the curves separating early.

The rate of symptomatic intracerebral hemorrhage was low in both groups (0.45% in the early group and 0.40% in the later group) as was extracranial hemorrhage (0.45% vs 0.55%).

At 90 days, there were still lower event rates in the early group than the later one, but the difference was no longer statistically significant.
 

‘Practice Changing’ Results

Commenting on both studies, chair of the WSC session where the results of both OPTIMAS trial and the meta-analysis were presented, Craig Anderson, MD, The George Institute for Global Health, Sydney, Australia, described these latest results as “practice changing.”

“When to start anticoagulation in acute ischemic stroke patients with AF has been uncertain for a long time. The dogma has always been that we should wait. Over the years, we’ve become a little bit more confident, but now we’ve got good data from randomized trials showing that early initiation is safe, with the meta-analysis showing benefit,” he said.

“These new data from OPTIMAS will reassure clinicians that there’s no excessive harm and, more importantly, no excessive harm across all patient groups. And the meta-analysis clearly showed an upfront benefit of starting anticoagulation early. That’s a very convincing result,” he added.

Anderson cautioned that there still may be concerns about starting DOACs early in some groups, including Asian populations that have a higher bleeding risk (these trials included predominantly White patients) and people who are older or frail, who may have extensive small vessel disease.

During the discussion, several questions centered on the lack of imaging data available on the patients in the studies. Anderson said imaging data would help reassure clinicians on the safety of early anticoagulation in patients with large infarcts.

“Stroke clinicians make decisions on the basis of the patient and on the basis of the brain, and we only have the patient information at the moment. We don’t have information on the brain — that comes from imaging.”

Regardless, he believes these new data will lead to a shift in practice. “But maybe, it won’t be as dramatic as we would hope because I think some clinicians may still hesitate to apply these results to patients at high risk of bleeding. With imaging data from the studies that might change.”

The OPTIMAS trial was funded by University College London and the British Heart Foundation. Werring reported consulting fees from Novo Nordisk, National Institute for Health and Care Excellence, and Alnylam; payments or speaker honoraria from Novo Nordisk, Bayer, and AstraZeneca/Alexion; participation on a data safety monitoring board for the OXHARP trial; and participation as steering committee chair for the MACE-ICH and PLINTH trials. Åsberg received institutional research grants and lecture fees to her institution from AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, and Institut Produits Synthése. Sandset and de Sousa were both steering committee members of the ELAN trial. Anderson reported grant funding from Penumbra and Takeda China.
 

A version of this article appeared on Medscape.com.

As a physician, you might be contacted by the media to provide your professional opinion and advice. Or you might be looking for media interview opportunities to market your practice or side project. And if you do research, media interviews can be an effective way to spread the word. It’s important to prepare for a media interview so that you achieve the outcome you are looking for. Here are six tips I learned from writing health articles, interviewing experts, and being interviewed myself. 

Keep your message simple. When you are a subject expert, you might think that the basics are obvious or even boring, and that the nuances are more important. However, most of the audience is looking for big-picture information that they can apply to their lives. Consider a few key takeaways, keeping in mind that your interview is likely to be edited to short sound bites or a few quotes. It may help to jot down notes so that you cover the fundamentals clearly. You could even write and rehearse a script beforehand. If there is something complicated or subtle that you want to convey, you can preface it by saying, “This is confusing but very important …” to let the audience know to give extra consideration to what you are about to say.

Avoid extremes and hyperbole. Sometimes, exaggerated statements make their way into medical discussions. Statements such as “it doesn’t matter how many calories you consume — it’s all about the quality” are common oversimplifications. But you might be upset to see your name next to a comment like this because it is not actually correct. Check the phrasing of your key takeaways to avoid being stuck defending or explaining an inaccurate statement when your patients ask you about it later. 

Ask the interviewers what they are looking for. Many medical topics have some controversial element, so it is good to know what you’re getting into. Find out the purpose of the article or interview before you decide whether it is right for you. It could be about another doctor in town who is being sued; if you don’t want to be associated with that story, it might be best to decline the interview. 

Explain your goals. You might accept or pursue an interview to raise awareness about an underrecognized condition. You might want the public to identify and get help for early symptoms, or you might want to create empathy for people coping with a disease you treat. Consider why you are participating in an interview, and communicate that to the interviewer to ensure that your objective can be part of the final product. 

Know whom you’re dealing with. It is good to learn about the publication/media channel before you agree to participate. It may have a political bias, or perhaps the interview is intended to promote a specific product. If you agree with and support their purposes, then you may be happy to lend your opinion. But learning about the “voice” of the publication in advance allows you to make an informed decision about whether you want to be identified with a particular political ideology or product endorsement.

Ask to see your quotes before publication. It’s good to have the opportunity to make corrections in case you are accidentally misquoted or misunderstood. It is best to ask to see quotes before you agree to the interview. Some reporters may agree to (or even prefer) a written question-and-answer format so that they can directly quote your responses without rephrasing your words. You could suggest this, especially if you are too busy for a call or live meeting.

As a physician, your insights and advice can be highly beneficial to others. You can also use media interviews to propel your career forward. Doing your homework can ensure that you will be pleased with the final product and how your words were used. 
 

Dr. Moawad, Clinical Assistant Professor, Department of Medical Education, Case Western Reserve University School of Medicine, Cleveland, Ohio, has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

As a physician, you might be contacted by the media to provide your professional opinion and advice. Or you might be looking for media interview opportunities to market your practice or side project. And if you do research, media interviews can be an effective way to spread the word. It’s important to prepare for a media interview so that you achieve the outcome you are looking for. Here are six tips I learned from writing health articles, interviewing experts, and being interviewed myself. 

Keep your message simple. When you are a subject expert, you might think that the basics are obvious or even boring, and that the nuances are more important. However, most of the audience is looking for big-picture information that they can apply to their lives. Consider a few key takeaways, keeping in mind that your interview is likely to be edited to short sound bites or a few quotes. It may help to jot down notes so that you cover the fundamentals clearly. You could even write and rehearse a script beforehand. If there is something complicated or subtle that you want to convey, you can preface it by saying, “This is confusing but very important …” to let the audience know to give extra consideration to what you are about to say.

Avoid extremes and hyperbole. Sometimes, exaggerated statements make their way into medical discussions. Statements such as “it doesn’t matter how many calories you consume — it’s all about the quality” are common oversimplifications. But you might be upset to see your name next to a comment like this because it is not actually correct. Check the phrasing of your key takeaways to avoid being stuck defending or explaining an inaccurate statement when your patients ask you about it later. 

Ask the interviewers what they are looking for. Many medical topics have some controversial element, so it is good to know what you’re getting into. Find out the purpose of the article or interview before you decide whether it is right for you. It could be about another doctor in town who is being sued; if you don’t want to be associated with that story, it might be best to decline the interview. 

Explain your goals. You might accept or pursue an interview to raise awareness about an underrecognized condition. You might want the public to identify and get help for early symptoms, or you might want to create empathy for people coping with a disease you treat. Consider why you are participating in an interview, and communicate that to the interviewer to ensure that your objective can be part of the final product. 

Know whom you’re dealing with. It is good to learn about the publication/media channel before you agree to participate. It may have a political bias, or perhaps the interview is intended to promote a specific product. If you agree with and support their purposes, then you may be happy to lend your opinion. But learning about the “voice” of the publication in advance allows you to make an informed decision about whether you want to be identified with a particular political ideology or product endorsement.

Ask to see your quotes before publication. It’s good to have the opportunity to make corrections in case you are accidentally misquoted or misunderstood. It is best to ask to see quotes before you agree to the interview. Some reporters may agree to (or even prefer) a written question-and-answer format so that they can directly quote your responses without rephrasing your words. You could suggest this, especially if you are too busy for a call or live meeting.

As a physician, your insights and advice can be highly beneficial to others. You can also use media interviews to propel your career forward. Doing your homework can ensure that you will be pleased with the final product and how your words were used. 
 

Dr. Moawad, Clinical Assistant Professor, Department of Medical Education, Case Western Reserve University School of Medicine, Cleveland, Ohio, has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

As a physician, you might be contacted by the media to provide your professional opinion and advice. Or you might be looking for media interview opportunities to market your practice or side project. And if you do research, media interviews can be an effective way to spread the word. It’s important to prepare for a media interview so that you achieve the outcome you are looking for. Here are six tips I learned from writing health articles, interviewing experts, and being interviewed myself. 

Keep your message simple. When you are a subject expert, you might think that the basics are obvious or even boring, and that the nuances are more important. However, most of the audience is looking for big-picture information that they can apply to their lives. Consider a few key takeaways, keeping in mind that your interview is likely to be edited to short sound bites or a few quotes. It may help to jot down notes so that you cover the fundamentals clearly. You could even write and rehearse a script beforehand. If there is something complicated or subtle that you want to convey, you can preface it by saying, “This is confusing but very important …” to let the audience know to give extra consideration to what you are about to say.

Avoid extremes and hyperbole. Sometimes, exaggerated statements make their way into medical discussions. Statements such as “it doesn’t matter how many calories you consume — it’s all about the quality” are common oversimplifications. But you might be upset to see your name next to a comment like this because it is not actually correct. Check the phrasing of your key takeaways to avoid being stuck defending or explaining an inaccurate statement when your patients ask you about it later. 

Ask the interviewers what they are looking for. Many medical topics have some controversial element, so it is good to know what you’re getting into. Find out the purpose of the article or interview before you decide whether it is right for you. It could be about another doctor in town who is being sued; if you don’t want to be associated with that story, it might be best to decline the interview. 

Explain your goals. You might accept or pursue an interview to raise awareness about an underrecognized condition. You might want the public to identify and get help for early symptoms, or you might want to create empathy for people coping with a disease you treat. Consider why you are participating in an interview, and communicate that to the interviewer to ensure that your objective can be part of the final product. 

Know whom you’re dealing with. It is good to learn about the publication/media channel before you agree to participate. It may have a political bias, or perhaps the interview is intended to promote a specific product. If you agree with and support their purposes, then you may be happy to lend your opinion. But learning about the “voice” of the publication in advance allows you to make an informed decision about whether you want to be identified with a particular political ideology or product endorsement.

Ask to see your quotes before publication. It’s good to have the opportunity to make corrections in case you are accidentally misquoted or misunderstood. It is best to ask to see quotes before you agree to the interview. Some reporters may agree to (or even prefer) a written question-and-answer format so that they can directly quote your responses without rephrasing your words. You could suggest this, especially if you are too busy for a call or live meeting.

As a physician, your insights and advice can be highly beneficial to others. You can also use media interviews to propel your career forward. Doing your homework can ensure that you will be pleased with the final product and how your words were used. 
 

Dr. Moawad, Clinical Assistant Professor, Department of Medical Education, Case Western Reserve University School of Medicine, Cleveland, Ohio, has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has announced a voluntary manufacturer-initiated recall of more than 7000 bottles of duloxetine delayed-release capsules due to unacceptable levels of a potential carcinogen.

Duloxetine (Cymbalta) is a serotonin-norepinephrine reuptake inhibitor used to treat major depressive disorder, generalized anxiety disorder, fibromyalgia, chronic musculoskeletal pain, and neuropathic pain associated with diabetic peripheral neuropathy.

The recall is due to the detection of the nitrosamine impurity, N-nitroso duloxetine, above the proposed interim limit.

Nitrosamines are common in water and foods, and exposure to some levels of the chemical is common. Exposure to nitrosamine impurities above acceptable levels and over long periods may increase cancer risk, the FDA reported.

“If drugs contain levels of nitrosamines above the acceptable daily intake limits, FDA recommends these drugs be recalled by the manufacturer as appropriate,” the agency noted on its website.

The recall was initiated by Breckenridge Pharmaceutical and covers 7107 bottles of 500-count, 20 mg duloxetine delayed-release capsules. The drug is manufactured by Towa Pharmaceutical Europe and distributed nationwide by BPI.

The affected bottles are from lot number 220128 with an expiration date of 12/2024 and NDC of 51991-746-05.

The recall was initiated on October 10 and is ongoing.

“Healthcare professionals can educate patients about alternative treatment options to medications with potential nitrosamine impurities if available and clinically appropriate,” the FDA advises. “If a medication has been recalled, pharmacists may be able to dispense the same medication from a manufacturing lot that has not been recalled. Prescribers may also determine whether there is an alternative treatment option for patients.”

The FDA has labeled this a “class II” recall, which the agency defines as “a situation in which use of or exposure to a violative product may cause temporary or medically reversible adverse health consequences or where the probability of serious adverse health consequences is remote.”

Nitrosamine impurities have prompted a number of drug recalls in recent years, including oral anticoagulants, metformin, and skeletal muscle relaxants.

The impurities may be found in drugs for a number of reasons, the agency reported. The source may be from a drug’s manufacturing process, chemical structure, or the conditions under which it is stored or packaged.
 

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has announced a voluntary manufacturer-initiated recall of more than 7000 bottles of duloxetine delayed-release capsules due to unacceptable levels of a potential carcinogen.

Duloxetine (Cymbalta) is a serotonin-norepinephrine reuptake inhibitor used to treat major depressive disorder, generalized anxiety disorder, fibromyalgia, chronic musculoskeletal pain, and neuropathic pain associated with diabetic peripheral neuropathy.

The recall is due to the detection of the nitrosamine impurity, N-nitroso duloxetine, above the proposed interim limit.

Nitrosamines are common in water and foods, and exposure to some levels of the chemical is common. Exposure to nitrosamine impurities above acceptable levels and over long periods may increase cancer risk, the FDA reported.

“If drugs contain levels of nitrosamines above the acceptable daily intake limits, FDA recommends these drugs be recalled by the manufacturer as appropriate,” the agency noted on its website.

The recall was initiated by Breckenridge Pharmaceutical and covers 7107 bottles of 500-count, 20 mg duloxetine delayed-release capsules. The drug is manufactured by Towa Pharmaceutical Europe and distributed nationwide by BPI.

The affected bottles are from lot number 220128 with an expiration date of 12/2024 and NDC of 51991-746-05.

The recall was initiated on October 10 and is ongoing.

“Healthcare professionals can educate patients about alternative treatment options to medications with potential nitrosamine impurities if available and clinically appropriate,” the FDA advises. “If a medication has been recalled, pharmacists may be able to dispense the same medication from a manufacturing lot that has not been recalled. Prescribers may also determine whether there is an alternative treatment option for patients.”

The FDA has labeled this a “class II” recall, which the agency defines as “a situation in which use of or exposure to a violative product may cause temporary or medically reversible adverse health consequences or where the probability of serious adverse health consequences is remote.”

Nitrosamine impurities have prompted a number of drug recalls in recent years, including oral anticoagulants, metformin, and skeletal muscle relaxants.

The impurities may be found in drugs for a number of reasons, the agency reported. The source may be from a drug’s manufacturing process, chemical structure, or the conditions under which it is stored or packaged.
 

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has announced a voluntary manufacturer-initiated recall of more than 7000 bottles of duloxetine delayed-release capsules due to unacceptable levels of a potential carcinogen.

Duloxetine (Cymbalta) is a serotonin-norepinephrine reuptake inhibitor used to treat major depressive disorder, generalized anxiety disorder, fibromyalgia, chronic musculoskeletal pain, and neuropathic pain associated with diabetic peripheral neuropathy.

The recall is due to the detection of the nitrosamine impurity, N-nitroso duloxetine, above the proposed interim limit.

Nitrosamines are common in water and foods, and exposure to some levels of the chemical is common. Exposure to nitrosamine impurities above acceptable levels and over long periods may increase cancer risk, the FDA reported.

“If drugs contain levels of nitrosamines above the acceptable daily intake limits, FDA recommends these drugs be recalled by the manufacturer as appropriate,” the agency noted on its website.

The recall was initiated by Breckenridge Pharmaceutical and covers 7107 bottles of 500-count, 20 mg duloxetine delayed-release capsules. The drug is manufactured by Towa Pharmaceutical Europe and distributed nationwide by BPI.

The affected bottles are from lot number 220128 with an expiration date of 12/2024 and NDC of 51991-746-05.

The recall was initiated on October 10 and is ongoing.

“Healthcare professionals can educate patients about alternative treatment options to medications with potential nitrosamine impurities if available and clinically appropriate,” the FDA advises. “If a medication has been recalled, pharmacists may be able to dispense the same medication from a manufacturing lot that has not been recalled. Prescribers may also determine whether there is an alternative treatment option for patients.”

The FDA has labeled this a “class II” recall, which the agency defines as “a situation in which use of or exposure to a violative product may cause temporary or medically reversible adverse health consequences or where the probability of serious adverse health consequences is remote.”

Nitrosamine impurities have prompted a number of drug recalls in recent years, including oral anticoagulants, metformin, and skeletal muscle relaxants.

The impurities may be found in drugs for a number of reasons, the agency reported. The source may be from a drug’s manufacturing process, chemical structure, or the conditions under which it is stored or packaged.
 

A version of this article appeared on Medscape.com.

SAVANNAH, GEORGIA — There is a lack of understanding among neuromuscular specialists on how to balance the risks for and benefits of corticosteroids when treating patients with generalized myasthenia gravis (gMG) and chronic inflammatory demyelinating polyneuropathy (CIDP), results of a US survey showed.

For both MG and CIDP specialists, uncertainty around corticosteroid dosing, duration, and toxicity underscores the need for more guidance, the investigators noted. Over 85% of respondents indicated that a tool for systematically monitoring corticosteroid toxicity would be valuable.

The results indicate “a lack of knowledge by this pool of neurologists about the guidelines and what they contain,” said study investigator Gil Wolfe, MD, professor of neurology at the Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, in New York.

Clearer guidance on how to administer corticosteroids and manage toxicities in patients with gMG and CIDP “would be welcomed by neurologists and have potential for benefit to patient care,” the team noted.

The findings were presented at the American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM) 2024.
 

Lack of Knowledge

Although guidelines for both CIDP and gMG recommend corticosteroids as first-line treatment and emphasize using the lowest effective dose to control symptoms, they do not include specific recommendations on dosing, duration, or toxicity monitoring, the researchers noted.

Despite this, a large proportion of survey respondents reported using guidelines to make clinical decisions on monitoring toxicity, with up to a third actually endorsing a guideline that doesn’t exist.

The cross-sectional, online survey was deployed in November and December 2023 and included 200 US neurologists. Of these, 99 answered questions on CIDP, and 101 answered similar questions on gMG.

To participate in the survey, respondents had to be board-certified neurologists, practicing for at least 2 years post-residency, and have treated or consulted on at least three patients with CIDP or 10 patients with gMG in the past year who were on a corticosteroid dose of at least 10 mg daily for 1 month or more.

CIDP respondents had been practicing a mean of 18.1 years since residency and were board certified in neuromuscular (20%), electrodiagnostic medicine/clinical neurophysiology (21%), and pediatric neurology (8%). Two thirds of them accepted referrals from other neurologists.

The gMG respondents had been practicing a mean of 20.5 years since residency and were board certified in neuromuscular (45%), electrodiagnostic medicine/clinical neurophysiology (35%), and pediatric neurology (17%). A total of 72% accepted referrals from other neurologists.

Respondents estimated that about 60% of their patients with gMG and 58% of patients with CIDP were being treated with corticosteroids, with gMG and CIDP respondents reporting a mean of 26.4 and 15.6 patients, respectively, meeting the study’s dosing criteria.
 

Appropriate Dosing

When asked what chronic, long-term (≥ 6 months) corticosteroid dose they considered safe in terms of minimizing adverse events, 43% of CIDP respondents and 51% of gMG respondents considered corticosteroid doses of 10 mg/d or less (prednisone equivalent) well tolerated; additionally, 32% and 31%, respectively, considered 20-40 mg/d well tolerated. Moreover, they said only about half of their patients would be able to taper to less than 10 mg/d in less than 6 months.

“Studies suggest safety is not seen until patients are on doses at 5 mg/d or less,” Wolfe said. “There is not enough appreciation that doses at levels we once considered safe really do pose significant risk,” he added.

“With the increasing number of treatment options in MG and to a lesser extent in CIDP, we need to do all we can to use corticosteroids as judiciously as possible and be aware of side effects our patients may not even report unless we make a pointed effort to ask about them.”

Familiarity with corticosteroid toxicities was more common among gMG respondents, of whom 77% reported being very/extremely familiar, than among 55% of CIDP respondents. Appetite/weight gain was reported among the most common adverse effects (AEs) associated with long-term CS use (reported by 68% of CIDP and 58% of gMG respondents). Other common AEs reported were insulin resistance (53% of CIDP and 50% of gMG respondents), decreased bone density (47% and 48%, respectively), immunosuppression (37% and 45%, respectively). Mood and behavioral change were noted by 56% of CIDP and 37% of gMG respondents, particularly mood swings, irritability, mania, and sleep disorders.

When asked how they balanced the risk for and benefit of corticosteroids, more than 80% of CIDP specialists reported personally monitoring for corticosteroid-related toxicity, and 42% reported they collaborated with the patient’s primary care provider. However, fewer than 10% reported ordering lab tests. Among neurologists treating gMG, 84% said they typically monitor corticosteroid toxicity independently, while 41% reported doing so in collaboration with primary care providers.

Two thirds of CIDP respondents and 53% of gMG respondents reported using guidelines to make clinical decisions on monitoring toxicity, and 34% of gMG respondents actually endorsed using the Guideline for Systematic Surveillance of Steroid Safety, which does not exist.
 

‘A Big Issue’ in Neurology

Commenting on the results, Said R. Beydoun, MD, professor and division chief, Neuromuscular Medicine, Department of Neurology at Keck Medicine of University of Southern California, Los Angeles, said steroid toxicity is “a big issue” in neurology.

These patients can be on chronic therapy, and they aren’t really monitored for osteoporosis or other complications, he said, adding that neurologists aren’t always taking the necessary precautions to prevent steroid toxicity.

Beydoun estimated that about half of neurologists are not adequately familiar with balancing the efficacy of corticosteroids versus in toxicity.

“Objective improvement, either on the functional scale or the muscle impairment scale — that’s really response treatment. Whereas adverse effects of a treatment are something separate. The patient may be improving but also maybe developing other complications from the treatment,” he said.

Also commenting, Ghazala Hayat, MD, professor of neurology and director of neuromuscular and clinical neurophysiology services at Saint Louis University in St. Louis, said there is a clear need for more education.

“I always say prednisone is our best friend initially, and then it becomes the worst enemy. If you don’t see lots of neuromuscular patients, you might not know even how to recognize toxicity or how to taper. Or the opposite to that, if you taper too quickly, patients relapse.”

The study was funded by argenx. Wolfe reported serving on advisory boards for Alexion, argenx, UCB, and Johnson & Johnson. Neelam Goyal, MD, is a consultant/advisor for Alexion, argenx, Amgen, Janssen, Lycia Therapeutics, and UCB and has received grant support from argenx. Beydoun reported receiving research support and consulting and speaking fees from Healey Center, Amylyx, AB Science, Sanofi, Janssen, Genentech, Regeneron, UCB, Abcuro argenx, Alnylam, AstraZeneca, Amylyx, CSL Behring, Grifols, Takeda, Octapharma, UCB, and Janssen. Hayat reported speaker and advisory roles with argenx, Alexion, and MTPA.
 

A version of this article appeared on Medscape.com.

SAVANNAH, GEORGIA — There is a lack of understanding among neuromuscular specialists on how to balance the risks for and benefits of corticosteroids when treating patients with generalized myasthenia gravis (gMG) and chronic inflammatory demyelinating polyneuropathy (CIDP), results of a US survey showed.

For both MG and CIDP specialists, uncertainty around corticosteroid dosing, duration, and toxicity underscores the need for more guidance, the investigators noted. Over 85% of respondents indicated that a tool for systematically monitoring corticosteroid toxicity would be valuable.

The results indicate “a lack of knowledge by this pool of neurologists about the guidelines and what they contain,” said study investigator Gil Wolfe, MD, professor of neurology at the Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, in New York.

Clearer guidance on how to administer corticosteroids and manage toxicities in patients with gMG and CIDP “would be welcomed by neurologists and have potential for benefit to patient care,” the team noted.

The findings were presented at the American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM) 2024.
 

Lack of Knowledge

Although guidelines for both CIDP and gMG recommend corticosteroids as first-line treatment and emphasize using the lowest effective dose to control symptoms, they do not include specific recommendations on dosing, duration, or toxicity monitoring, the researchers noted.

Despite this, a large proportion of survey respondents reported using guidelines to make clinical decisions on monitoring toxicity, with up to a third actually endorsing a guideline that doesn’t exist.

The cross-sectional, online survey was deployed in November and December 2023 and included 200 US neurologists. Of these, 99 answered questions on CIDP, and 101 answered similar questions on gMG.

To participate in the survey, respondents had to be board-certified neurologists, practicing for at least 2 years post-residency, and have treated or consulted on at least three patients with CIDP or 10 patients with gMG in the past year who were on a corticosteroid dose of at least 10 mg daily for 1 month or more.

CIDP respondents had been practicing a mean of 18.1 years since residency and were board certified in neuromuscular (20%), electrodiagnostic medicine/clinical neurophysiology (21%), and pediatric neurology (8%). Two thirds of them accepted referrals from other neurologists.

The gMG respondents had been practicing a mean of 20.5 years since residency and were board certified in neuromuscular (45%), electrodiagnostic medicine/clinical neurophysiology (35%), and pediatric neurology (17%). A total of 72% accepted referrals from other neurologists.

Respondents estimated that about 60% of their patients with gMG and 58% of patients with CIDP were being treated with corticosteroids, with gMG and CIDP respondents reporting a mean of 26.4 and 15.6 patients, respectively, meeting the study’s dosing criteria.
 

Appropriate Dosing

When asked what chronic, long-term (≥ 6 months) corticosteroid dose they considered safe in terms of minimizing adverse events, 43% of CIDP respondents and 51% of gMG respondents considered corticosteroid doses of 10 mg/d or less (prednisone equivalent) well tolerated; additionally, 32% and 31%, respectively, considered 20-40 mg/d well tolerated. Moreover, they said only about half of their patients would be able to taper to less than 10 mg/d in less than 6 months.

“Studies suggest safety is not seen until patients are on doses at 5 mg/d or less,” Wolfe said. “There is not enough appreciation that doses at levels we once considered safe really do pose significant risk,” he added.

“With the increasing number of treatment options in MG and to a lesser extent in CIDP, we need to do all we can to use corticosteroids as judiciously as possible and be aware of side effects our patients may not even report unless we make a pointed effort to ask about them.”

Familiarity with corticosteroid toxicities was more common among gMG respondents, of whom 77% reported being very/extremely familiar, than among 55% of CIDP respondents. Appetite/weight gain was reported among the most common adverse effects (AEs) associated with long-term CS use (reported by 68% of CIDP and 58% of gMG respondents). Other common AEs reported were insulin resistance (53% of CIDP and 50% of gMG respondents), decreased bone density (47% and 48%, respectively), immunosuppression (37% and 45%, respectively). Mood and behavioral change were noted by 56% of CIDP and 37% of gMG respondents, particularly mood swings, irritability, mania, and sleep disorders.

When asked how they balanced the risk for and benefit of corticosteroids, more than 80% of CIDP specialists reported personally monitoring for corticosteroid-related toxicity, and 42% reported they collaborated with the patient’s primary care provider. However, fewer than 10% reported ordering lab tests. Among neurologists treating gMG, 84% said they typically monitor corticosteroid toxicity independently, while 41% reported doing so in collaboration with primary care providers.

Two thirds of CIDP respondents and 53% of gMG respondents reported using guidelines to make clinical decisions on monitoring toxicity, and 34% of gMG respondents actually endorsed using the Guideline for Systematic Surveillance of Steroid Safety, which does not exist.
 

‘A Big Issue’ in Neurology

Commenting on the results, Said R. Beydoun, MD, professor and division chief, Neuromuscular Medicine, Department of Neurology at Keck Medicine of University of Southern California, Los Angeles, said steroid toxicity is “a big issue” in neurology.

These patients can be on chronic therapy, and they aren’t really monitored for osteoporosis or other complications, he said, adding that neurologists aren’t always taking the necessary precautions to prevent steroid toxicity.

Beydoun estimated that about half of neurologists are not adequately familiar with balancing the efficacy of corticosteroids versus in toxicity.

“Objective improvement, either on the functional scale or the muscle impairment scale — that’s really response treatment. Whereas adverse effects of a treatment are something separate. The patient may be improving but also maybe developing other complications from the treatment,” he said.

Also commenting, Ghazala Hayat, MD, professor of neurology and director of neuromuscular and clinical neurophysiology services at Saint Louis University in St. Louis, said there is a clear need for more education.

“I always say prednisone is our best friend initially, and then it becomes the worst enemy. If you don’t see lots of neuromuscular patients, you might not know even how to recognize toxicity or how to taper. Or the opposite to that, if you taper too quickly, patients relapse.”

The study was funded by argenx. Wolfe reported serving on advisory boards for Alexion, argenx, UCB, and Johnson & Johnson. Neelam Goyal, MD, is a consultant/advisor for Alexion, argenx, Amgen, Janssen, Lycia Therapeutics, and UCB and has received grant support from argenx. Beydoun reported receiving research support and consulting and speaking fees from Healey Center, Amylyx, AB Science, Sanofi, Janssen, Genentech, Regeneron, UCB, Abcuro argenx, Alnylam, AstraZeneca, Amylyx, CSL Behring, Grifols, Takeda, Octapharma, UCB, and Janssen. Hayat reported speaker and advisory roles with argenx, Alexion, and MTPA.
 

A version of this article appeared on Medscape.com.

SAVANNAH, GEORGIA — There is a lack of understanding among neuromuscular specialists on how to balance the risks for and benefits of corticosteroids when treating patients with generalized myasthenia gravis (gMG) and chronic inflammatory demyelinating polyneuropathy (CIDP), results of a US survey showed.

For both MG and CIDP specialists, uncertainty around corticosteroid dosing, duration, and toxicity underscores the need for more guidance, the investigators noted. Over 85% of respondents indicated that a tool for systematically monitoring corticosteroid toxicity would be valuable.

The results indicate “a lack of knowledge by this pool of neurologists about the guidelines and what they contain,” said study investigator Gil Wolfe, MD, professor of neurology at the Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, in New York.

Clearer guidance on how to administer corticosteroids and manage toxicities in patients with gMG and CIDP “would be welcomed by neurologists and have potential for benefit to patient care,” the team noted.

The findings were presented at the American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM) 2024.
 

Lack of Knowledge

Although guidelines for both CIDP and gMG recommend corticosteroids as first-line treatment and emphasize using the lowest effective dose to control symptoms, they do not include specific recommendations on dosing, duration, or toxicity monitoring, the researchers noted.

Despite this, a large proportion of survey respondents reported using guidelines to make clinical decisions on monitoring toxicity, with up to a third actually endorsing a guideline that doesn’t exist.

The cross-sectional, online survey was deployed in November and December 2023 and included 200 US neurologists. Of these, 99 answered questions on CIDP, and 101 answered similar questions on gMG.

To participate in the survey, respondents had to be board-certified neurologists, practicing for at least 2 years post-residency, and have treated or consulted on at least three patients with CIDP or 10 patients with gMG in the past year who were on a corticosteroid dose of at least 10 mg daily for 1 month or more.

CIDP respondents had been practicing a mean of 18.1 years since residency and were board certified in neuromuscular (20%), electrodiagnostic medicine/clinical neurophysiology (21%), and pediatric neurology (8%). Two thirds of them accepted referrals from other neurologists.

The gMG respondents had been practicing a mean of 20.5 years since residency and were board certified in neuromuscular (45%), electrodiagnostic medicine/clinical neurophysiology (35%), and pediatric neurology (17%). A total of 72% accepted referrals from other neurologists.

Respondents estimated that about 60% of their patients with gMG and 58% of patients with CIDP were being treated with corticosteroids, with gMG and CIDP respondents reporting a mean of 26.4 and 15.6 patients, respectively, meeting the study’s dosing criteria.
 

Appropriate Dosing

When asked what chronic, long-term (≥ 6 months) corticosteroid dose they considered safe in terms of minimizing adverse events, 43% of CIDP respondents and 51% of gMG respondents considered corticosteroid doses of 10 mg/d or less (prednisone equivalent) well tolerated; additionally, 32% and 31%, respectively, considered 20-40 mg/d well tolerated. Moreover, they said only about half of their patients would be able to taper to less than 10 mg/d in less than 6 months.

“Studies suggest safety is not seen until patients are on doses at 5 mg/d or less,” Wolfe said. “There is not enough appreciation that doses at levels we once considered safe really do pose significant risk,” he added.

“With the increasing number of treatment options in MG and to a lesser extent in CIDP, we need to do all we can to use corticosteroids as judiciously as possible and be aware of side effects our patients may not even report unless we make a pointed effort to ask about them.”

Familiarity with corticosteroid toxicities was more common among gMG respondents, of whom 77% reported being very/extremely familiar, than among 55% of CIDP respondents. Appetite/weight gain was reported among the most common adverse effects (AEs) associated with long-term CS use (reported by 68% of CIDP and 58% of gMG respondents). Other common AEs reported were insulin resistance (53% of CIDP and 50% of gMG respondents), decreased bone density (47% and 48%, respectively), immunosuppression (37% and 45%, respectively). Mood and behavioral change were noted by 56% of CIDP and 37% of gMG respondents, particularly mood swings, irritability, mania, and sleep disorders.

When asked how they balanced the risk for and benefit of corticosteroids, more than 80% of CIDP specialists reported personally monitoring for corticosteroid-related toxicity, and 42% reported they collaborated with the patient’s primary care provider. However, fewer than 10% reported ordering lab tests. Among neurologists treating gMG, 84% said they typically monitor corticosteroid toxicity independently, while 41% reported doing so in collaboration with primary care providers.

Two thirds of CIDP respondents and 53% of gMG respondents reported using guidelines to make clinical decisions on monitoring toxicity, and 34% of gMG respondents actually endorsed using the Guideline for Systematic Surveillance of Steroid Safety, which does not exist.
 

‘A Big Issue’ in Neurology

Commenting on the results, Said R. Beydoun, MD, professor and division chief, Neuromuscular Medicine, Department of Neurology at Keck Medicine of University of Southern California, Los Angeles, said steroid toxicity is “a big issue” in neurology.

These patients can be on chronic therapy, and they aren’t really monitored for osteoporosis or other complications, he said, adding that neurologists aren’t always taking the necessary precautions to prevent steroid toxicity.

Beydoun estimated that about half of neurologists are not adequately familiar with balancing the efficacy of corticosteroids versus in toxicity.

“Objective improvement, either on the functional scale or the muscle impairment scale — that’s really response treatment. Whereas adverse effects of a treatment are something separate. The patient may be improving but also maybe developing other complications from the treatment,” he said.

Also commenting, Ghazala Hayat, MD, professor of neurology and director of neuromuscular and clinical neurophysiology services at Saint Louis University in St. Louis, said there is a clear need for more education.

“I always say prednisone is our best friend initially, and then it becomes the worst enemy. If you don’t see lots of neuromuscular patients, you might not know even how to recognize toxicity or how to taper. Or the opposite to that, if you taper too quickly, patients relapse.”

The study was funded by argenx. Wolfe reported serving on advisory boards for Alexion, argenx, UCB, and Johnson & Johnson. Neelam Goyal, MD, is a consultant/advisor for Alexion, argenx, Amgen, Janssen, Lycia Therapeutics, and UCB and has received grant support from argenx. Beydoun reported receiving research support and consulting and speaking fees from Healey Center, Amylyx, AB Science, Sanofi, Janssen, Genentech, Regeneron, UCB, Abcuro argenx, Alnylam, AstraZeneca, Amylyx, CSL Behring, Grifols, Takeda, Octapharma, UCB, and Janssen. Hayat reported speaker and advisory roles with argenx, Alexion, and MTPA.
 

A version of this article appeared on Medscape.com.

SAVANNAH, GEORGIA — Teamwork and transdisciplinary collaboration create an effective system of care for amyotrophic lateral sclerosis (ALS), ensuring improved health both for patients and clinicians alike, said one expert.

In a plenary address at the American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM) 2024, Ileana Howard, MD, medical co-director of the ALS Center of Excellence at VA Puget Sound in Seattle, said the recently released National Academies report “Living with ALS” cited the Veterans Administration as “a bright spot in the landscape of ALS care due to its interdisciplinary, holistic, and proactive approach to care.”

Since the early 2000s and the publication of several studies linking active military service with ALS, the US Department of Veterans Affairs (VA) has opened an ALS registry, a tissue and brain biobank, and in 2008, granted 100% presumptive service connection to any individual who served more than 90 days of active duty and was later diagnosed with ALS, she said.

“We now serve approximately 4000 veterans with ALS across the system, and we count 47 full interdisciplinary clinics within VA across the nation, with ALS coordinators designated for all 170 VA facilities, regardless of whether they had an ALS clinic or not, to serve as a navigator for patients and their families, to identify the closest ALS clinic that could meet their needs.” 
 

Multidisciplinary vs Interdisciplinary

Howard emphasized that transdisciplinary collaboration is essential for maintaining an effective system. She pointed out that the term “multidisciplinary” is outdated, referring to teams that work independently but in parallel on the same issue.

In contrast, interdisciplinary teams integrate their assessments into a cohesive plan of care, whereas transdisciplinary teams take it further by combining both their assessments and care plans, allowing for greater intentional overlap.

The VA’s ALS handbook lists approximately 20 essential clinicians for a VA ALS clinic, including recreation therapists, assistive technology specialists, and veteran benefit service officers to assist with disability benefits application, among others, she said.

Essential to this collaboration is “role release,” which deliberately blurs the boundaries between disciplines. “The future of our specialty hinges on effective and selfless collaboration,” she said.

Howard encouraged ALS healthcare providers to move away from outdated terminology rooted in hierarchical team models and to break down silos that no longer benefit either the patients or the care teams.

She noted that while teamwork can enhance patient outcomes and overall health, it has also been associated with better health among healthcare providers. It’s well-known, she said, that neurologists and physiatrists are among the specialties with the highest burnout rates, and ALS teams, in particular, experience significant stress and burnout.
 

Better Together

A recent Canadian study on resiliency and burnout in ALS clinics surveyed a wide range of practitioners within ALS centers and found respondents drew resiliency through relationships with patients and colleagues, and that there was a strongly expressed desire for increased resources, team building/debriefing, and formal training in emotional exhaustion and burnout.

“A consistent theme was the lack of adequate allied health support (nursing, social work, occupational therapy) to address the complex needs of patients,” said the report’s senior author Kerri Lynn Schellenberg, MD, medical director of the ALS/Motor Neuron Diseases clinic and associate professor at the University of Saskatchewan College of Medicine in Saskatoon, Saskatchewan, Canada.

“The majority of participants felt they would benefit from more consistent team building exercises and debriefing,” noted the authors.

Schellenberg agreed, emphasizing that care teams perform best when there is mutual appreciation and support among members. By learning from one another and reaching consensus together, the care plan benefits from the collective expertise of the team. “We are stronger together,” she said.

Howard and Schellenberg reported no disclosures.
 

A version of this article appeared on Medscape.com.

SAVANNAH, GEORGIA — Teamwork and transdisciplinary collaboration create an effective system of care for amyotrophic lateral sclerosis (ALS), ensuring improved health both for patients and clinicians alike, said one expert.

In a plenary address at the American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM) 2024, Ileana Howard, MD, medical co-director of the ALS Center of Excellence at VA Puget Sound in Seattle, said the recently released National Academies report “Living with ALS” cited the Veterans Administration as “a bright spot in the landscape of ALS care due to its interdisciplinary, holistic, and proactive approach to care.”

Since the early 2000s and the publication of several studies linking active military service with ALS, the US Department of Veterans Affairs (VA) has opened an ALS registry, a tissue and brain biobank, and in 2008, granted 100% presumptive service connection to any individual who served more than 90 days of active duty and was later diagnosed with ALS, she said.

“We now serve approximately 4000 veterans with ALS across the system, and we count 47 full interdisciplinary clinics within VA across the nation, with ALS coordinators designated for all 170 VA facilities, regardless of whether they had an ALS clinic or not, to serve as a navigator for patients and their families, to identify the closest ALS clinic that could meet their needs.” 
 

Multidisciplinary vs Interdisciplinary

Howard emphasized that transdisciplinary collaboration is essential for maintaining an effective system. She pointed out that the term “multidisciplinary” is outdated, referring to teams that work independently but in parallel on the same issue.

In contrast, interdisciplinary teams integrate their assessments into a cohesive plan of care, whereas transdisciplinary teams take it further by combining both their assessments and care plans, allowing for greater intentional overlap.

The VA’s ALS handbook lists approximately 20 essential clinicians for a VA ALS clinic, including recreation therapists, assistive technology specialists, and veteran benefit service officers to assist with disability benefits application, among others, she said.

Essential to this collaboration is “role release,” which deliberately blurs the boundaries between disciplines. “The future of our specialty hinges on effective and selfless collaboration,” she said.

Howard encouraged ALS healthcare providers to move away from outdated terminology rooted in hierarchical team models and to break down silos that no longer benefit either the patients or the care teams.

She noted that while teamwork can enhance patient outcomes and overall health, it has also been associated with better health among healthcare providers. It’s well-known, she said, that neurologists and physiatrists are among the specialties with the highest burnout rates, and ALS teams, in particular, experience significant stress and burnout.
 

Better Together

A recent Canadian study on resiliency and burnout in ALS clinics surveyed a wide range of practitioners within ALS centers and found respondents drew resiliency through relationships with patients and colleagues, and that there was a strongly expressed desire for increased resources, team building/debriefing, and formal training in emotional exhaustion and burnout.

“A consistent theme was the lack of adequate allied health support (nursing, social work, occupational therapy) to address the complex needs of patients,” said the report’s senior author Kerri Lynn Schellenberg, MD, medical director of the ALS/Motor Neuron Diseases clinic and associate professor at the University of Saskatchewan College of Medicine in Saskatoon, Saskatchewan, Canada.

“The majority of participants felt they would benefit from more consistent team building exercises and debriefing,” noted the authors.

Schellenberg agreed, emphasizing that care teams perform best when there is mutual appreciation and support among members. By learning from one another and reaching consensus together, the care plan benefits from the collective expertise of the team. “We are stronger together,” she said.

Howard and Schellenberg reported no disclosures.
 

A version of this article appeared on Medscape.com.

SAVANNAH, GEORGIA — Teamwork and transdisciplinary collaboration create an effective system of care for amyotrophic lateral sclerosis (ALS), ensuring improved health both for patients and clinicians alike, said one expert.

In a plenary address at the American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM) 2024, Ileana Howard, MD, medical co-director of the ALS Center of Excellence at VA Puget Sound in Seattle, said the recently released National Academies report “Living with ALS” cited the Veterans Administration as “a bright spot in the landscape of ALS care due to its interdisciplinary, holistic, and proactive approach to care.”

Since the early 2000s and the publication of several studies linking active military service with ALS, the US Department of Veterans Affairs (VA) has opened an ALS registry, a tissue and brain biobank, and in 2008, granted 100% presumptive service connection to any individual who served more than 90 days of active duty and was later diagnosed with ALS, she said.

“We now serve approximately 4000 veterans with ALS across the system, and we count 47 full interdisciplinary clinics within VA across the nation, with ALS coordinators designated for all 170 VA facilities, regardless of whether they had an ALS clinic or not, to serve as a navigator for patients and their families, to identify the closest ALS clinic that could meet their needs.” 
 

Multidisciplinary vs Interdisciplinary

Howard emphasized that transdisciplinary collaboration is essential for maintaining an effective system. She pointed out that the term “multidisciplinary” is outdated, referring to teams that work independently but in parallel on the same issue.

In contrast, interdisciplinary teams integrate their assessments into a cohesive plan of care, whereas transdisciplinary teams take it further by combining both their assessments and care plans, allowing for greater intentional overlap.

The VA’s ALS handbook lists approximately 20 essential clinicians for a VA ALS clinic, including recreation therapists, assistive technology specialists, and veteran benefit service officers to assist with disability benefits application, among others, she said.

Essential to this collaboration is “role release,” which deliberately blurs the boundaries between disciplines. “The future of our specialty hinges on effective and selfless collaboration,” she said.

Howard encouraged ALS healthcare providers to move away from outdated terminology rooted in hierarchical team models and to break down silos that no longer benefit either the patients or the care teams.

She noted that while teamwork can enhance patient outcomes and overall health, it has also been associated with better health among healthcare providers. It’s well-known, she said, that neurologists and physiatrists are among the specialties with the highest burnout rates, and ALS teams, in particular, experience significant stress and burnout.
 

Better Together

A recent Canadian study on resiliency and burnout in ALS clinics surveyed a wide range of practitioners within ALS centers and found respondents drew resiliency through relationships with patients and colleagues, and that there was a strongly expressed desire for increased resources, team building/debriefing, and formal training in emotional exhaustion and burnout.

“A consistent theme was the lack of adequate allied health support (nursing, social work, occupational therapy) to address the complex needs of patients,” said the report’s senior author Kerri Lynn Schellenberg, MD, medical director of the ALS/Motor Neuron Diseases clinic and associate professor at the University of Saskatchewan College of Medicine in Saskatoon, Saskatchewan, Canada.

“The majority of participants felt they would benefit from more consistent team building exercises and debriefing,” noted the authors.

Schellenberg agreed, emphasizing that care teams perform best when there is mutual appreciation and support among members. By learning from one another and reaching consensus together, the care plan benefits from the collective expertise of the team. “We are stronger together,” she said.

Howard and Schellenberg reported no disclosures.
 

A version of this article appeared on Medscape.com.

SAVANNAH, GEORGIA — A digital tool to help neurologists assess steroid toxicity in patients with myasthenia gravis (MG) demonstrated sensitivity in distinguishing between different doses and durations of steroid exposure in a retrospective, real-world study.

The Glucocorticoid Toxicity Index-Metabolic Domains (GTI-MD), an abbreviated version of the GTI (Steritas), used weighted, standardized clinical outcome assessments to calculate steroid toxicity using a de-identified electronic health record (EHR) dataset.

“The results of our study indicate that patients with MG who initiated steroids demonstrated evidence of steroid toxicity in as little as 90 days after initial exposure, which was significant for patients with 20+ mg at index with repeated use,” noted study investigators, led by Neelam Goyal, MD, clinical professor of neurology and neurological sciences at Stanford University School of Medicine in Palo Alto, California.

The findings were presented at American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM) 2024.
 

Rapid Evidence of Toxicity

The GTI uses nine health domains to calculate steroid toxicity scores, and the GTI-MD, which has been shown to be closely correlated, uses four domains collected routinely in clinical practice: Body mass index (BMI), blood pressure, glucose tolerance, and lipid metabolism.

The study used the Optum EHR dataset to identify 682 adult patients with MG, mean age of 70 years, 38% women, with at least two confirmed diagnoses of MG between 30 and 730 days apart and information on steroid utilization.

Patients were divided into two groups: Steroid initiators (SI; n = 377) were those whose steroid use was already in progress at the index date, whereas steroid-naive (SN) patients (n = 305) began their steroid use at the index date. Among the SI group, 30% were on doses greater than 20 mg/d and 22% were on lower doses. Among the SN group, 22% were on doses greater than 20 mg/d and 26% were on lower doses.

As expected, mean GTI-MD scores measured 90 days after the index date were higher in the SI group than in the SN group, indicating a higher level of steroid toxicity in the SI group. This was measured with two subscores of the GTI-MD: The Cumulative Worsening Score (22.6 vs 18.7; P = .007) and the Aggregate Improvement Score (4.9 vs 1.9; P = .27), the latter incorporating resolved toxicities resulting from the introduction of steroid-sparing agents.

The authors commented that scores were higher in the SN group than expected, “which could be explained by age, previous steroid exposure, comorbidities, and side effects from other medications.” However, they concluded that the findings suggest utility of the tool retrospectively, with EHR data.
 

Clinical Application

The GTI and related measurements are proprietary tools and therefore not readily available to all clinicians, noted Marie Beaudin, MD, another neurologist at Stanford University School of Medicine, who was not involved in the research.

In a separate, observational, ongoing study, Beaudin and Goyal’s team are examining the use of the tool prospectively for following the steroid toxicity burden in 50 patients with MG and correlating it with MG outcomes measured using the MG-Activities of Daily Living, MG Composite, and MG-Quality of Life 15R validated scales, as well as the adverse event unit.

“The objective of this study is to quantify the burden of toxicity that our patients are having from glucocorticoids, see how sensitive to change the scale is as their dosage of prednisone changes, and explore the correlations between the score and their disease outcome measures,” Beaudin said.

Unlike the abbreviated GTI-MD, the GTI measures nine domains: Bone mineral density, BMI, lipid metabolism, blood pressure, glucose tolerance, myopathy, skin toxicity, neuropsychiatric symptoms, and infections.

The score involves actively prompting and examining the patient, making it quite comprehensive. Beaudin said the study has revealed interesting insights into how patients report their side effects. When asked broadly about steroid-related side effects, many patients mention issues like weight or skin issues.

However, she noted, when prompted specifically about symptoms like insomnia, irritability, depression, or cognitive changes, there was an unexpected increase in positive responses, as patients are often unaware these could be side effects. This suggests the study may capture a greater burden than originally anticipated, said Beaudin.

She added that the long-term utility of the GTI score might be to help clinicians predict steroid toxicity and guide management.

“Then we would get more aggressive in trying to wean or taper patients. But these are often complicated cases because as soon as we taper, the disease flares. It’s a difficult decision whether to reduce the dosage of prednisone because toxicity burden is high, when disease burden is high too, and that’s where other medications can come into play.”

For example, she said, for insurance coverage, a high steroid toxicity score could justify the need to initiate more expensive steroid-sparing agents.

Both studies were funded by argenx. Goyal reported that she has consulted and received grant support from argenx, UCB, Alexion, and Janssen argenx. Beaudin is supported by a McLaughlin Scholarship from Laval University, Quebec, Canada.
 

A version of this article appeared on Medscape.com.

SAVANNAH, GEORGIA — A digital tool to help neurologists assess steroid toxicity in patients with myasthenia gravis (MG) demonstrated sensitivity in distinguishing between different doses and durations of steroid exposure in a retrospective, real-world study.

The Glucocorticoid Toxicity Index-Metabolic Domains (GTI-MD), an abbreviated version of the GTI (Steritas), used weighted, standardized clinical outcome assessments to calculate steroid toxicity using a de-identified electronic health record (EHR) dataset.

“The results of our study indicate that patients with MG who initiated steroids demonstrated evidence of steroid toxicity in as little as 90 days after initial exposure, which was significant for patients with 20+ mg at index with repeated use,” noted study investigators, led by Neelam Goyal, MD, clinical professor of neurology and neurological sciences at Stanford University School of Medicine in Palo Alto, California.

The findings were presented at American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM) 2024.
 

Rapid Evidence of Toxicity

The GTI uses nine health domains to calculate steroid toxicity scores, and the GTI-MD, which has been shown to be closely correlated, uses four domains collected routinely in clinical practice: Body mass index (BMI), blood pressure, glucose tolerance, and lipid metabolism.

The study used the Optum EHR dataset to identify 682 adult patients with MG, mean age of 70 years, 38% women, with at least two confirmed diagnoses of MG between 30 and 730 days apart and information on steroid utilization.

Patients were divided into two groups: Steroid initiators (SI; n = 377) were those whose steroid use was already in progress at the index date, whereas steroid-naive (SN) patients (n = 305) began their steroid use at the index date. Among the SI group, 30% were on doses greater than 20 mg/d and 22% were on lower doses. Among the SN group, 22% were on doses greater than 20 mg/d and 26% were on lower doses.

As expected, mean GTI-MD scores measured 90 days after the index date were higher in the SI group than in the SN group, indicating a higher level of steroid toxicity in the SI group. This was measured with two subscores of the GTI-MD: The Cumulative Worsening Score (22.6 vs 18.7; P = .007) and the Aggregate Improvement Score (4.9 vs 1.9; P = .27), the latter incorporating resolved toxicities resulting from the introduction of steroid-sparing agents.

The authors commented that scores were higher in the SN group than expected, “which could be explained by age, previous steroid exposure, comorbidities, and side effects from other medications.” However, they concluded that the findings suggest utility of the tool retrospectively, with EHR data.
 

Clinical Application

The GTI and related measurements are proprietary tools and therefore not readily available to all clinicians, noted Marie Beaudin, MD, another neurologist at Stanford University School of Medicine, who was not involved in the research.

In a separate, observational, ongoing study, Beaudin and Goyal’s team are examining the use of the tool prospectively for following the steroid toxicity burden in 50 patients with MG and correlating it with MG outcomes measured using the MG-Activities of Daily Living, MG Composite, and MG-Quality of Life 15R validated scales, as well as the adverse event unit.

“The objective of this study is to quantify the burden of toxicity that our patients are having from glucocorticoids, see how sensitive to change the scale is as their dosage of prednisone changes, and explore the correlations between the score and their disease outcome measures,” Beaudin said.

Unlike the abbreviated GTI-MD, the GTI measures nine domains: Bone mineral density, BMI, lipid metabolism, blood pressure, glucose tolerance, myopathy, skin toxicity, neuropsychiatric symptoms, and infections.

The score involves actively prompting and examining the patient, making it quite comprehensive. Beaudin said the study has revealed interesting insights into how patients report their side effects. When asked broadly about steroid-related side effects, many patients mention issues like weight or skin issues.

However, she noted, when prompted specifically about symptoms like insomnia, irritability, depression, or cognitive changes, there was an unexpected increase in positive responses, as patients are often unaware these could be side effects. This suggests the study may capture a greater burden than originally anticipated, said Beaudin.

She added that the long-term utility of the GTI score might be to help clinicians predict steroid toxicity and guide management.

“Then we would get more aggressive in trying to wean or taper patients. But these are often complicated cases because as soon as we taper, the disease flares. It’s a difficult decision whether to reduce the dosage of prednisone because toxicity burden is high, when disease burden is high too, and that’s where other medications can come into play.”

For example, she said, for insurance coverage, a high steroid toxicity score could justify the need to initiate more expensive steroid-sparing agents.

Both studies were funded by argenx. Goyal reported that she has consulted and received grant support from argenx, UCB, Alexion, and Janssen argenx. Beaudin is supported by a McLaughlin Scholarship from Laval University, Quebec, Canada.
 

A version of this article appeared on Medscape.com.

SAVANNAH, GEORGIA — A digital tool to help neurologists assess steroid toxicity in patients with myasthenia gravis (MG) demonstrated sensitivity in distinguishing between different doses and durations of steroid exposure in a retrospective, real-world study.

The Glucocorticoid Toxicity Index-Metabolic Domains (GTI-MD), an abbreviated version of the GTI (Steritas), used weighted, standardized clinical outcome assessments to calculate steroid toxicity using a de-identified electronic health record (EHR) dataset.

“The results of our study indicate that patients with MG who initiated steroids demonstrated evidence of steroid toxicity in as little as 90 days after initial exposure, which was significant for patients with 20+ mg at index with repeated use,” noted study investigators, led by Neelam Goyal, MD, clinical professor of neurology and neurological sciences at Stanford University School of Medicine in Palo Alto, California.

The findings were presented at American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM) 2024.
 

Rapid Evidence of Toxicity

The GTI uses nine health domains to calculate steroid toxicity scores, and the GTI-MD, which has been shown to be closely correlated, uses four domains collected routinely in clinical practice: Body mass index (BMI), blood pressure, glucose tolerance, and lipid metabolism.

The study used the Optum EHR dataset to identify 682 adult patients with MG, mean age of 70 years, 38% women, with at least two confirmed diagnoses of MG between 30 and 730 days apart and information on steroid utilization.

Patients were divided into two groups: Steroid initiators (SI; n = 377) were those whose steroid use was already in progress at the index date, whereas steroid-naive (SN) patients (n = 305) began their steroid use at the index date. Among the SI group, 30% were on doses greater than 20 mg/d and 22% were on lower doses. Among the SN group, 22% were on doses greater than 20 mg/d and 26% were on lower doses.

As expected, mean GTI-MD scores measured 90 days after the index date were higher in the SI group than in the SN group, indicating a higher level of steroid toxicity in the SI group. This was measured with two subscores of the GTI-MD: The Cumulative Worsening Score (22.6 vs 18.7; P = .007) and the Aggregate Improvement Score (4.9 vs 1.9; P = .27), the latter incorporating resolved toxicities resulting from the introduction of steroid-sparing agents.

The authors commented that scores were higher in the SN group than expected, “which could be explained by age, previous steroid exposure, comorbidities, and side effects from other medications.” However, they concluded that the findings suggest utility of the tool retrospectively, with EHR data.
 

Clinical Application

The GTI and related measurements are proprietary tools and therefore not readily available to all clinicians, noted Marie Beaudin, MD, another neurologist at Stanford University School of Medicine, who was not involved in the research.

In a separate, observational, ongoing study, Beaudin and Goyal’s team are examining the use of the tool prospectively for following the steroid toxicity burden in 50 patients with MG and correlating it with MG outcomes measured using the MG-Activities of Daily Living, MG Composite, and MG-Quality of Life 15R validated scales, as well as the adverse event unit.

“The objective of this study is to quantify the burden of toxicity that our patients are having from glucocorticoids, see how sensitive to change the scale is as their dosage of prednisone changes, and explore the correlations between the score and their disease outcome measures,” Beaudin said.

Unlike the abbreviated GTI-MD, the GTI measures nine domains: Bone mineral density, BMI, lipid metabolism, blood pressure, glucose tolerance, myopathy, skin toxicity, neuropsychiatric symptoms, and infections.

The score involves actively prompting and examining the patient, making it quite comprehensive. Beaudin said the study has revealed interesting insights into how patients report their side effects. When asked broadly about steroid-related side effects, many patients mention issues like weight or skin issues.

However, she noted, when prompted specifically about symptoms like insomnia, irritability, depression, or cognitive changes, there was an unexpected increase in positive responses, as patients are often unaware these could be side effects. This suggests the study may capture a greater burden than originally anticipated, said Beaudin.

She added that the long-term utility of the GTI score might be to help clinicians predict steroid toxicity and guide management.

“Then we would get more aggressive in trying to wean or taper patients. But these are often complicated cases because as soon as we taper, the disease flares. It’s a difficult decision whether to reduce the dosage of prednisone because toxicity burden is high, when disease burden is high too, and that’s where other medications can come into play.”

For example, she said, for insurance coverage, a high steroid toxicity score could justify the need to initiate more expensive steroid-sparing agents.

Both studies were funded by argenx. Goyal reported that she has consulted and received grant support from argenx, UCB, Alexion, and Janssen argenx. Beaudin is supported by a McLaughlin Scholarship from Laval University, Quebec, Canada.
 

A version of this article appeared on Medscape.com.

A new study provides real-world evidence to support the potential repurposing of glucagon-like peptide 1 receptor agonists (GLP-1 RAs), used to treat type 2 diabetes and obesity, for prevention of Alzheimer’s disease.

Adults with type 2 diabetes who were prescribed the GLP-1 RA semaglutide had a significantly lower risk for Alzheimer’s disease compared with their peers who were prescribed any of seven other antidiabetic medications, including other types of GLP-1 receptor–targeting medications. 

“These findings support further clinical trials to assess semaglutide’s potential in delaying or preventing Alzheimer’s disease,” wrote the investigators, led by Rong Xu, PhD, with Case Western Reserve School of Medicine, Cleveland, Ohio. 

The study was published online on October 24 in Alzheimer’s & Dementia.
 

Real-World Data

Semaglutide has shown neuroprotective effects in animal models of neurodegenerative diseases, including Alzheimer’s disease and Parkinson’s disease. In animal models of Alzheimer’s disease, the drug reduced beta-amyloid deposition and improved spatial learning and memory, as well as glucose metabolism in the brain. 

In a real-world analysis, Xu and colleagues used electronic health record data to identify 17,104 new users of semaglutide and 1,077,657 new users of seven other antidiabetic medications, including other GLP-1 RAs, insulin, metformin, dipeptidyl peptidase 4 inhibitors, sodium-glucose cotransporter 2 inhibitors, sulfonylurea, and thiazolidinedione.

Over 3 years, treatment with semaglutide was associated with significantly reduced risk of developing Alzheimer’s disease, most strongly compared with insulin (hazard ratio [HR], 0.33) and most weakly compared with other GLP-1 RAs (HR, 0.59). 

Compared with the other medications, semaglutide was associated with a 40%-70% reduced risk for first-time diagnosis of Alzheimer’s disease in patients with type 2 diabetes, with similar reductions seen across obesity status and gender and age groups, the authors reported. 

The findings align with recent evidence suggesting GLP-1 RAs may protect cognitive function. 

For example, as previously reported, in the phase 2b ELAD clinical trial, adults with early-stage Alzheimer’s disease taking the GLP-1 RA liraglutide exhibited slower decline in memory and thinking and experienced less brain atrophy over 12 months compared with placebo. 
 

Promising, but Preliminary 

Reached for comment, Courtney Kloske, PhD, Alzheimer’s Association director of scientific engagement, noted that diabetes is a known risk factor for AD and managing diabetes with drugs such as semaglutide “could benefit brain health simply by managing diabetes.”

“However, we still need large clinical trials in representative populations to determine if semaglutide specifically lowers the risk of Alzheimer’s, so it is too early to recommend it for prevention,” Kloske said. 

She noted that some research suggests that GLP-1 RAs “may help reduce inflammation and positively impact brain energy use. However, more research is needed to fully understand how these processes might contribute to preventing cognitive decline or Alzheimer’s,” Kloske cautioned. 

The Alzheimer’s Association’s “Part the Cloud” initiative has invested more than $68 million to advance 65 clinical trials targeting a variety of compounds, including repurposed drugs that may address known and potential new aspects of the disease, Kloske said. 

The study was supported by grants from the National Institute on Aging and the National Center for Advancing Translational Sciences. Xu and Kloske have no relevant conflicts.
 

A version of this article appeared on Medscape.com.

A new study provides real-world evidence to support the potential repurposing of glucagon-like peptide 1 receptor agonists (GLP-1 RAs), used to treat type 2 diabetes and obesity, for prevention of Alzheimer’s disease.

Adults with type 2 diabetes who were prescribed the GLP-1 RA semaglutide had a significantly lower risk for Alzheimer’s disease compared with their peers who were prescribed any of seven other antidiabetic medications, including other types of GLP-1 receptor–targeting medications. 

“These findings support further clinical trials to assess semaglutide’s potential in delaying or preventing Alzheimer’s disease,” wrote the investigators, led by Rong Xu, PhD, with Case Western Reserve School of Medicine, Cleveland, Ohio. 

The study was published online on October 24 in Alzheimer’s & Dementia.
 

Real-World Data

Semaglutide has shown neuroprotective effects in animal models of neurodegenerative diseases, including Alzheimer’s disease and Parkinson’s disease. In animal models of Alzheimer’s disease, the drug reduced beta-amyloid deposition and improved spatial learning and memory, as well as glucose metabolism in the brain. 

In a real-world analysis, Xu and colleagues used electronic health record data to identify 17,104 new users of semaglutide and 1,077,657 new users of seven other antidiabetic medications, including other GLP-1 RAs, insulin, metformin, dipeptidyl peptidase 4 inhibitors, sodium-glucose cotransporter 2 inhibitors, sulfonylurea, and thiazolidinedione.

Over 3 years, treatment with semaglutide was associated with significantly reduced risk of developing Alzheimer’s disease, most strongly compared with insulin (hazard ratio [HR], 0.33) and most weakly compared with other GLP-1 RAs (HR, 0.59). 

Compared with the other medications, semaglutide was associated with a 40%-70% reduced risk for first-time diagnosis of Alzheimer’s disease in patients with type 2 diabetes, with similar reductions seen across obesity status and gender and age groups, the authors reported. 

The findings align with recent evidence suggesting GLP-1 RAs may protect cognitive function. 

For example, as previously reported, in the phase 2b ELAD clinical trial, adults with early-stage Alzheimer’s disease taking the GLP-1 RA liraglutide exhibited slower decline in memory and thinking and experienced less brain atrophy over 12 months compared with placebo. 
 

Promising, but Preliminary 

Reached for comment, Courtney Kloske, PhD, Alzheimer’s Association director of scientific engagement, noted that diabetes is a known risk factor for AD and managing diabetes with drugs such as semaglutide “could benefit brain health simply by managing diabetes.”

“However, we still need large clinical trials in representative populations to determine if semaglutide specifically lowers the risk of Alzheimer’s, so it is too early to recommend it for prevention,” Kloske said. 

She noted that some research suggests that GLP-1 RAs “may help reduce inflammation and positively impact brain energy use. However, more research is needed to fully understand how these processes might contribute to preventing cognitive decline or Alzheimer’s,” Kloske cautioned. 

The Alzheimer’s Association’s “Part the Cloud” initiative has invested more than $68 million to advance 65 clinical trials targeting a variety of compounds, including repurposed drugs that may address known and potential new aspects of the disease, Kloske said. 

The study was supported by grants from the National Institute on Aging and the National Center for Advancing Translational Sciences. Xu and Kloske have no relevant conflicts.
 

A version of this article appeared on Medscape.com.

A new study provides real-world evidence to support the potential repurposing of glucagon-like peptide 1 receptor agonists (GLP-1 RAs), used to treat type 2 diabetes and obesity, for prevention of Alzheimer’s disease.

Adults with type 2 diabetes who were prescribed the GLP-1 RA semaglutide had a significantly lower risk for Alzheimer’s disease compared with their peers who were prescribed any of seven other antidiabetic medications, including other types of GLP-1 receptor–targeting medications. 

“These findings support further clinical trials to assess semaglutide’s potential in delaying or preventing Alzheimer’s disease,” wrote the investigators, led by Rong Xu, PhD, with Case Western Reserve School of Medicine, Cleveland, Ohio. 

The study was published online on October 24 in Alzheimer’s & Dementia.
 

Real-World Data

Semaglutide has shown neuroprotective effects in animal models of neurodegenerative diseases, including Alzheimer’s disease and Parkinson’s disease. In animal models of Alzheimer’s disease, the drug reduced beta-amyloid deposition and improved spatial learning and memory, as well as glucose metabolism in the brain. 

In a real-world analysis, Xu and colleagues used electronic health record data to identify 17,104 new users of semaglutide and 1,077,657 new users of seven other antidiabetic medications, including other GLP-1 RAs, insulin, metformin, dipeptidyl peptidase 4 inhibitors, sodium-glucose cotransporter 2 inhibitors, sulfonylurea, and thiazolidinedione.

Over 3 years, treatment with semaglutide was associated with significantly reduced risk of developing Alzheimer’s disease, most strongly compared with insulin (hazard ratio [HR], 0.33) and most weakly compared with other GLP-1 RAs (HR, 0.59). 

Compared with the other medications, semaglutide was associated with a 40%-70% reduced risk for first-time diagnosis of Alzheimer’s disease in patients with type 2 diabetes, with similar reductions seen across obesity status and gender and age groups, the authors reported. 

The findings align with recent evidence suggesting GLP-1 RAs may protect cognitive function. 

For example, as previously reported, in the phase 2b ELAD clinical trial, adults with early-stage Alzheimer’s disease taking the GLP-1 RA liraglutide exhibited slower decline in memory and thinking and experienced less brain atrophy over 12 months compared with placebo. 
 

Promising, but Preliminary 

Reached for comment, Courtney Kloske, PhD, Alzheimer’s Association director of scientific engagement, noted that diabetes is a known risk factor for AD and managing diabetes with drugs such as semaglutide “could benefit brain health simply by managing diabetes.”

“However, we still need large clinical trials in representative populations to determine if semaglutide specifically lowers the risk of Alzheimer’s, so it is too early to recommend it for prevention,” Kloske said. 

She noted that some research suggests that GLP-1 RAs “may help reduce inflammation and positively impact brain energy use. However, more research is needed to fully understand how these processes might contribute to preventing cognitive decline or Alzheimer’s,” Kloske cautioned. 

The Alzheimer’s Association’s “Part the Cloud” initiative has invested more than $68 million to advance 65 clinical trials targeting a variety of compounds, including repurposed drugs that may address known and potential new aspects of the disease, Kloske said. 

The study was supported by grants from the National Institute on Aging and the National Center for Advancing Translational Sciences. Xu and Kloske have no relevant conflicts.
 

A version of this article appeared on Medscape.com.

Researchers have identified a potential new sign of concussion in athletes, particularly football players, that can easily be spotted on the field, indicating the need for immediate removal from the game and evaluation for potential traumatic brain injury (TBI).

Spontaneous Headshake After a Kinematic Event (SHAAKE) refers to the rapid, back-and-forth head movement athletes exhibit following a blow to the head. This voluntary motion typically occurs within seconds to minutes after impact and is a familiar response in athletes.

In a recent survey, 7 out of 10 adult athletes recalled making this movement after a collision, and three out of four times they attributed this back-and-forth head movement to a concussion. The association was strongest among football players, who reported that over 90% of SHAAKE episodes were associated with a concussion.

The results were published online in Diagnostics.
 

Call to Action

“Everyone” — including sports and medical organizations — “should be adding this to their list of potential concussion signs and their protocol immediately,” study investigator Chris Nowinski, PhD, CEO and co-founder of the Concussion Legacy Foundation, told this news organization.

Nowinski said it’s “fascinating” that this concussion sign hasn’t been formally studied or added to formal concussion screening metrics before now, given that it’s been depicted in movies, television, and cartoons for decades.

Coaches, medical professionals, and concussion spotters should be trained to recognize when a SHAAKE happens, he said.

“The interesting thing is, I don’t think coaches or parents need much training other than to officially tie this to suspicion of a concussion,” Nowinski added.
 

The Case of Miami Dolphins QB Tua Tagovailoa

Nowinski said he was tipped off to SHAAKE as a concussion sign after Miami Dolphins quarterback Tua Tagovailoa’s controversial undiagnosed concussion during a National Football League (NFL) game in 2022.

After Tagovailoa’s head hit the ground, he rapidly shook his head side to side, indicating displaying SHAAKE, before stumbling and collapsing. At the time, a sideline doctor attributed his collapse to a prior back injury.

If Tagovailoa had been diagnosed with a concussion, he likely would not have been playing in a game just 4 days later, where he lost consciousness after suffering a suspected second concussion and was removed from the field on a stretcher.

For the survey, Nowinski and colleagues showed 347 current and former athletes, including 109 football players, video examples of SHAAKE and them asked about their experiences with this potential indicator of concussion.

Nearly 69% of athletes reported exhibiting a SHAAKE during their career, and 93% of those reported a SHAAKE in association with concussion at least once. Athletes reported SHAAKE a median of five times in their lives.

Of the athletes who reported SHAAKE, 85% linked this head-shaking movement to concussion symptoms such as disorientation (71%) and dizziness (54%).

Across all sports, SHAAKE showed a sensitivity of 49.6% and a positive predictive value (PPV) of 72.4% for diagnosing concussions.

Among football players, sensitivity improved to 52.3%, with an estimated specificity of 99.9%, a PPV of 91.9%, and an estimated negative predictive value of 99.5%.

The main limitation of the survey was the potential for recall bias due to survey participants self-reporting prior concussions. The researchers called for future prospective studies to validate SHAAKE as a sign of concussion.
 

Instant Replay for Brain Injury?

Experts echoed the need for validation. SHAAKE represents a “promising advance” in objective TBI assessment, particularly for sideline evaluation, said Shaheen Lakhan, MD, PhD, neurologist, and researcher based in Miami, Florida, who wasn’t involved in the research.

The potential value of SHAAKE is “particularly notable given the well-documented tendency for athletes to minimize or conceal symptoms to maintain play eligibility, a limitation that has historically challenged our reliance on subjective reporting and observational assessments,” Lakhan said.

“Moving forward, validation through prospective studies incorporating real-time video analysis, helmet sensor data, and clinician-confirmed TBI diagnoses will be essential. With appropriate validation, SHAAKE could emerge as a valuable component of our sideline assessment arsenal, complementing rather than replacing existing diagnostic approaches,” Lakhan said.

“SHAAKE could be the ‘instant replay’ for brain injuries that sports medicine has been waiting for — but like any new technology, we need to make sure it works for every player, not just some,” Lakhan added.

Also weighing in, Richard Figler, MD, director of the Concussion Center, Cleveland Clinic Sports Medicine Center, Cleveland, cautioned that the survey participants were recruited from a concussion registry and self-reported an average of 23 concussions — more than one third of which happened 5-10 years prior — which begs the question, “How much are they actually remembering?”

“Our goal is to make sure that the athletes are safe and that we’re not missing concussions, and we don’t have great tools to start off with. This study opens up the door for some prospective studies [of SHAAKE] moving forward. I think we need more data before this should be listed as a definitive marker,” said Figler, who also wasn’t involved in the study.

In any case, he said, when it comes to suspected concussion in sports, “when in doubt, you sit them out,” Figler said.

This research received no external funding. Nowinski has received travel reimbursement from the NFL Players Association (NFLPA), NFL, World Rugby, WWE, and All Elite Wrestling; served as an expert witness in cases related to concussion and chronic traumatic encephalopathy; and is compensated for speaking appearances and serving on the NFL Concussion Settlement Player Advocacy Committee. Daniel H. Daneshvar served as an expert witness in legal cases involving brain injury and concussion and received funding from the Football Players Health Study at Harvard University, which is funded by the NFLPA and evaluates patients for the MGH Brain and Body TRUST Center, sponsored in part by the NFLPA. Lakhan and Figler had no relevant disclosures.
 

A version of this article appeared on Medscape.com.

Researchers have identified a potential new sign of concussion in athletes, particularly football players, that can easily be spotted on the field, indicating the need for immediate removal from the game and evaluation for potential traumatic brain injury (TBI).

Spontaneous Headshake After a Kinematic Event (SHAAKE) refers to the rapid, back-and-forth head movement athletes exhibit following a blow to the head. This voluntary motion typically occurs within seconds to minutes after impact and is a familiar response in athletes.

In a recent survey, 7 out of 10 adult athletes recalled making this movement after a collision, and three out of four times they attributed this back-and-forth head movement to a concussion. The association was strongest among football players, who reported that over 90% of SHAAKE episodes were associated with a concussion.

The results were published online in Diagnostics.
 

Call to Action

“Everyone” — including sports and medical organizations — “should be adding this to their list of potential concussion signs and their protocol immediately,” study investigator Chris Nowinski, PhD, CEO and co-founder of the Concussion Legacy Foundation, told this news organization.

Nowinski said it’s “fascinating” that this concussion sign hasn’t been formally studied or added to formal concussion screening metrics before now, given that it’s been depicted in movies, television, and cartoons for decades.

Coaches, medical professionals, and concussion spotters should be trained to recognize when a SHAAKE happens, he said.

“The interesting thing is, I don’t think coaches or parents need much training other than to officially tie this to suspicion of a concussion,” Nowinski added.
 

The Case of Miami Dolphins QB Tua Tagovailoa

Nowinski said he was tipped off to SHAAKE as a concussion sign after Miami Dolphins quarterback Tua Tagovailoa’s controversial undiagnosed concussion during a National Football League (NFL) game in 2022.

After Tagovailoa’s head hit the ground, he rapidly shook his head side to side, indicating displaying SHAAKE, before stumbling and collapsing. At the time, a sideline doctor attributed his collapse to a prior back injury.

If Tagovailoa had been diagnosed with a concussion, he likely would not have been playing in a game just 4 days later, where he lost consciousness after suffering a suspected second concussion and was removed from the field on a stretcher.

For the survey, Nowinski and colleagues showed 347 current and former athletes, including 109 football players, video examples of SHAAKE and them asked about their experiences with this potential indicator of concussion.

Nearly 69% of athletes reported exhibiting a SHAAKE during their career, and 93% of those reported a SHAAKE in association with concussion at least once. Athletes reported SHAAKE a median of five times in their lives.

Of the athletes who reported SHAAKE, 85% linked this head-shaking movement to concussion symptoms such as disorientation (71%) and dizziness (54%).

Across all sports, SHAAKE showed a sensitivity of 49.6% and a positive predictive value (PPV) of 72.4% for diagnosing concussions.

Among football players, sensitivity improved to 52.3%, with an estimated specificity of 99.9%, a PPV of 91.9%, and an estimated negative predictive value of 99.5%.

The main limitation of the survey was the potential for recall bias due to survey participants self-reporting prior concussions. The researchers called for future prospective studies to validate SHAAKE as a sign of concussion.
 

Instant Replay for Brain Injury?

Experts echoed the need for validation. SHAAKE represents a “promising advance” in objective TBI assessment, particularly for sideline evaluation, said Shaheen Lakhan, MD, PhD, neurologist, and researcher based in Miami, Florida, who wasn’t involved in the research.

The potential value of SHAAKE is “particularly notable given the well-documented tendency for athletes to minimize or conceal symptoms to maintain play eligibility, a limitation that has historically challenged our reliance on subjective reporting and observational assessments,” Lakhan said.

“Moving forward, validation through prospective studies incorporating real-time video analysis, helmet sensor data, and clinician-confirmed TBI diagnoses will be essential. With appropriate validation, SHAAKE could emerge as a valuable component of our sideline assessment arsenal, complementing rather than replacing existing diagnostic approaches,” Lakhan said.

“SHAAKE could be the ‘instant replay’ for brain injuries that sports medicine has been waiting for — but like any new technology, we need to make sure it works for every player, not just some,” Lakhan added.

Also weighing in, Richard Figler, MD, director of the Concussion Center, Cleveland Clinic Sports Medicine Center, Cleveland, cautioned that the survey participants were recruited from a concussion registry and self-reported an average of 23 concussions — more than one third of which happened 5-10 years prior — which begs the question, “How much are they actually remembering?”

“Our goal is to make sure that the athletes are safe and that we’re not missing concussions, and we don’t have great tools to start off with. This study opens up the door for some prospective studies [of SHAAKE] moving forward. I think we need more data before this should be listed as a definitive marker,” said Figler, who also wasn’t involved in the study.

In any case, he said, when it comes to suspected concussion in sports, “when in doubt, you sit them out,” Figler said.

This research received no external funding. Nowinski has received travel reimbursement from the NFL Players Association (NFLPA), NFL, World Rugby, WWE, and All Elite Wrestling; served as an expert witness in cases related to concussion and chronic traumatic encephalopathy; and is compensated for speaking appearances and serving on the NFL Concussion Settlement Player Advocacy Committee. Daniel H. Daneshvar served as an expert witness in legal cases involving brain injury and concussion and received funding from the Football Players Health Study at Harvard University, which is funded by the NFLPA and evaluates patients for the MGH Brain and Body TRUST Center, sponsored in part by the NFLPA. Lakhan and Figler had no relevant disclosures.
 

A version of this article appeared on Medscape.com.

Researchers have identified a potential new sign of concussion in athletes, particularly football players, that can easily be spotted on the field, indicating the need for immediate removal from the game and evaluation for potential traumatic brain injury (TBI).

Spontaneous Headshake After a Kinematic Event (SHAAKE) refers to the rapid, back-and-forth head movement athletes exhibit following a blow to the head. This voluntary motion typically occurs within seconds to minutes after impact and is a familiar response in athletes.

In a recent survey, 7 out of 10 adult athletes recalled making this movement after a collision, and three out of four times they attributed this back-and-forth head movement to a concussion. The association was strongest among football players, who reported that over 90% of SHAAKE episodes were associated with a concussion.

The results were published online in Diagnostics.
 

Call to Action

“Everyone” — including sports and medical organizations — “should be adding this to their list of potential concussion signs and their protocol immediately,” study investigator Chris Nowinski, PhD, CEO and co-founder of the Concussion Legacy Foundation, told this news organization.

Nowinski said it’s “fascinating” that this concussion sign hasn’t been formally studied or added to formal concussion screening metrics before now, given that it’s been depicted in movies, television, and cartoons for decades.

Coaches, medical professionals, and concussion spotters should be trained to recognize when a SHAAKE happens, he said.

“The interesting thing is, I don’t think coaches or parents need much training other than to officially tie this to suspicion of a concussion,” Nowinski added.
 

The Case of Miami Dolphins QB Tua Tagovailoa

Nowinski said he was tipped off to SHAAKE as a concussion sign after Miami Dolphins quarterback Tua Tagovailoa’s controversial undiagnosed concussion during a National Football League (NFL) game in 2022.

After Tagovailoa’s head hit the ground, he rapidly shook his head side to side, indicating displaying SHAAKE, before stumbling and collapsing. At the time, a sideline doctor attributed his collapse to a prior back injury.

If Tagovailoa had been diagnosed with a concussion, he likely would not have been playing in a game just 4 days later, where he lost consciousness after suffering a suspected second concussion and was removed from the field on a stretcher.

For the survey, Nowinski and colleagues showed 347 current and former athletes, including 109 football players, video examples of SHAAKE and them asked about their experiences with this potential indicator of concussion.

Nearly 69% of athletes reported exhibiting a SHAAKE during their career, and 93% of those reported a SHAAKE in association with concussion at least once. Athletes reported SHAAKE a median of five times in their lives.

Of the athletes who reported SHAAKE, 85% linked this head-shaking movement to concussion symptoms such as disorientation (71%) and dizziness (54%).

Across all sports, SHAAKE showed a sensitivity of 49.6% and a positive predictive value (PPV) of 72.4% for diagnosing concussions.

Among football players, sensitivity improved to 52.3%, with an estimated specificity of 99.9%, a PPV of 91.9%, and an estimated negative predictive value of 99.5%.

The main limitation of the survey was the potential for recall bias due to survey participants self-reporting prior concussions. The researchers called for future prospective studies to validate SHAAKE as a sign of concussion.
 

Instant Replay for Brain Injury?

Experts echoed the need for validation. SHAAKE represents a “promising advance” in objective TBI assessment, particularly for sideline evaluation, said Shaheen Lakhan, MD, PhD, neurologist, and researcher based in Miami, Florida, who wasn’t involved in the research.

The potential value of SHAAKE is “particularly notable given the well-documented tendency for athletes to minimize or conceal symptoms to maintain play eligibility, a limitation that has historically challenged our reliance on subjective reporting and observational assessments,” Lakhan said.

“Moving forward, validation through prospective studies incorporating real-time video analysis, helmet sensor data, and clinician-confirmed TBI diagnoses will be essential. With appropriate validation, SHAAKE could emerge as a valuable component of our sideline assessment arsenal, complementing rather than replacing existing diagnostic approaches,” Lakhan said.

“SHAAKE could be the ‘instant replay’ for brain injuries that sports medicine has been waiting for — but like any new technology, we need to make sure it works for every player, not just some,” Lakhan added.

Also weighing in, Richard Figler, MD, director of the Concussion Center, Cleveland Clinic Sports Medicine Center, Cleveland, cautioned that the survey participants were recruited from a concussion registry and self-reported an average of 23 concussions — more than one third of which happened 5-10 years prior — which begs the question, “How much are they actually remembering?”

“Our goal is to make sure that the athletes are safe and that we’re not missing concussions, and we don’t have great tools to start off with. This study opens up the door for some prospective studies [of SHAAKE] moving forward. I think we need more data before this should be listed as a definitive marker,” said Figler, who also wasn’t involved in the study.

In any case, he said, when it comes to suspected concussion in sports, “when in doubt, you sit them out,” Figler said.

This research received no external funding. Nowinski has received travel reimbursement from the NFL Players Association (NFLPA), NFL, World Rugby, WWE, and All Elite Wrestling; served as an expert witness in cases related to concussion and chronic traumatic encephalopathy; and is compensated for speaking appearances and serving on the NFL Concussion Settlement Player Advocacy Committee. Daniel H. Daneshvar served as an expert witness in legal cases involving brain injury and concussion and received funding from the Football Players Health Study at Harvard University, which is funded by the NFLPA and evaluates patients for the MGH Brain and Body TRUST Center, sponsored in part by the NFLPA. Lakhan and Figler had no relevant disclosures.
 

A version of this article appeared on Medscape.com.

This October, millions of Americans missed out on two of the most spectacular shows in the universe: the northern lights and a rare comet. Even if you were aware of them, light pollution made them difficult to see, unless you went to a dark area and let your eyes adjust.

It’s not getting any easier — the night sky over North America has been growing brighter by about 10% per year since 2011. More and more research is linking all that light pollution to a surprising range of health consequences: cancer, heart disease, diabetes, Alzheimer’s disease, and even low sperm quality, though the reasons for these troubling associations are not always clear. 

“We’ve lost the contrast between light and dark, and we are confusing our physiology on a regular basis,” said John Hanifin, PhD, associate director of Thomas Jefferson University’s Light Research Program. 

Our own galaxy is invisible to nearly 80% of people in North America. In 1994, an earthquake-triggered blackout in Los Angeles led to calls to the Griffith Observatory from people wondering about that hazy blob of light in the night sky. It was the Milky Way.

Glaring headlights, illuminated buildings, blazing billboards, and streetlights fill our urban skies with a glow that even affects rural residents. Inside, since the invention of the lightbulb, we’ve kept our homes bright at night. Now, we’ve also added blue light-emitting devices — smartphones, television screens, tablets — which have been linked to sleep problems.

But outdoor light may matter for our health, too. “Every photon counts,” Hanifin said. 
 

Bright Lights, Big Problems

For one 2024 study researchers used satellite data to measure light pollution at residential addresses of over 13,000 people. They found that those who lived in places with the brightest skies at night had a 31% higher risk of high blood pressure. Another study out of Hong Kong showed a 29% higher risk of death from coronary heart disease. And yet another found a 17%higher risk of cerebrovascular disease, such as strokes or brain aneurysms. 

Of course, urban areas also have air pollution, noise, and a lack of greenery. So, for some studies, scientists controlled for these factors, and the correlation remained strong (although air pollution with fine particulate matter appeared to be worse for heart health than outdoor light). 

Research has found links between the nighttime glow outside and other diseases:

Breast cancer. “It’s a very strong correlation,” said Randy Nelson, PhD, a neuroscientist at West Virginia University. A study of over 100,000 teachers in California revealed that women living in areas with the most light pollution had a 12%higher risk. That effect is comparable to increasing your intake of ultra-processed foods by 10%. 

Alzheimer’s disease. In a study published this fall, outdoor light at night was more strongly linked to the disease than even alcohol misuse or obesity.

Diabetes. In one recent study, people living in the most illuminated areas had a 28% higher risk of diabetes than those residing in much darker places. In a country like China, scientists concluded that 9 million cases of diabetes could be linked to light pollution. 
 

What Happens in Your Body When You’re Exposed to Light at Night

Research has revealed that light at night (indoors or out) disrupts circadian clocks, increases inflammation, affects cell division, and suppresses melatonin, the “hormone of darkness.” “Darkness is very important,” Hanifin said. When he and his colleagues decades ago started studying the effects of light on human physiology, “people thought we were borderline crazy,” he said.

Nighttime illumination affects the health and behavior of species as diverse as Siberian hamsters, zebra finches, mice, crickets, and mosquitoes. Like most creatures on Earth, humans have internal clocks that are synced to the 24-hour cycle of day and night. The master clock is in your hypothalamus, a diamond-shaped part of the brain, but every cell in your body has its own clock, too. Many physiological processes run on circadian rhythms (a term derived from a Latin phrase meaning “about a day”), from sleep-wake cycle to hormone secretion, as well as processes involved in cancer progression, such as cell division.

“There are special photoreceptors in the eye that don’t deal with visual information. They just send light information,” Nelson said. “If you get light at the wrong time, you’re resetting the clocks.” 

This internal clock “prepares the body for various recurrent challenges, such as eating,” said Christian Benedict, PhD, a sleep researcher at Uppsala University, Sweden. “Light exposure [at night] can mess up this very important system.” This could mean, for instance, that your insulin is released at the wrong time, Benedict said, causing “a jet lag-ish condition that will then impair the ability to handle blood sugar.” Animal studies confirm that exposure to light at night can reduce glucose tolerance and alter insulin secretion – potential pathways to diabetes.

The hormone melatonin, produced when it’s dark by the pineal gland in the brain, is a key player in this modern struggle. Melatonin helps you sleep, synchronizes the body’s circadian rhythms, protects neurons from damage, regulates the immune system, and fights inflammation. But even a sliver of light at night can suppress its secretion. Less than 30 lux of light, about the level of a pedestrian street at night, can slash melatonin by half. 

When lab animals are exposed to nighttime light, they “show enormous neuroinflammation” — that is, inflammation of nervous tissue, Nelson said. In one experiment on humans, those who slept immersed in weak light had higher levels of C-reactive protein in their blood, a marker of inflammation.

Low melatonin has also been linked to cancer. It “allows the metabolic machinery of the cancer cells to be active,” Hanifin said. One of melatonin’s effects is stimulation of natural killer cells, which can recognize and destroy cancer cells. What’s more, when melatonin plunges, estrogen may go up, which could explain the link between light at night and breast cancer (estrogen fuels tumor growth in breast cancers). 

Researchers concede that satellite data might be too coarse to estimate how much light people are actually exposed to while they sleep. Plus, many of us are staring at bright screens. “But the studies keep coming,” Nelson said, suggesting that outdoor light pollution does have an impact. 

When researchers put wrist-worn light sensors on over 80,000 British people, they found that the more light the device registered between half-past midnight and 6 a.m., the more its wearer was at risk of having diabetes several years down the road — no matter how long they’ve actually slept. This, according to the study’s authors, supports the findings of satellite data.

A similar study that used actigraphy with built-in light sensors, measuring whether people had been sleeping in complete darkness for at least five hours, found that light pollution upped the risk of heart disease by 74%.
 

What Can You Do About This?

Not everyone’s melatonin is affected by nighttime light to the same degree. “Some people are very much sensitive to very dim light, whereas others are not as sensitive and need far, far more light stimulation [to impact melatonin],” Benedict said. In one study, some volunteers needed 350 lux to lower their melatonin by half. For such people, flipping on the light in the bathroom at night wouldn’t matter; for others, though, a mere 6 lux was already as harmful – which is darker than twilight. 

You can protect yourself by keeping your bedroom lights off and your screens stashed away, but avoiding outdoor light pollution may be harder. You can invest in high-quality blackout curtains, of course, although some light may still seep inside. You can plant trees in front of your windows, reorient any motion-detector lights, and even petition your local government to reduce over-illumination of buildings and to choose better streetlights. You can support organizations, such as the International Dark-Sky Association, that work to preserve darkness.

Last but not least, you might want to change your habits. If you live in a particularly light-polluted area, such as the District of Columbia, America’s top place for urban blaze, you might reconsider late-night walks or drives around the neighborhood. Instead, Hanifin said, read a book in bed, while keeping the light “as dim as you can.” It’s “a much better idea versus being outside in midtown Manhattan,” he said. According to recent recommendations published by Hanifin and his colleagues, when you sleep, there should be no more than 1 lux of illumination at the level of your eyes — about as much as you’d get from having a lit candle 1 meter away. 

And if we manage to preserve outdoor darkness, and the stars reappear (including the breathtaking Milky Way), we could reap more benefits — some research suggests that stargazing can elicit positive emotions, a sense of personal growth, and “a variety of transcendent thoughts and experiences.” 
 

A version of this article appeared on WebMD.com.

This October, millions of Americans missed out on two of the most spectacular shows in the universe: the northern lights and a rare comet. Even if you were aware of them, light pollution made them difficult to see, unless you went to a dark area and let your eyes adjust.

It’s not getting any easier — the night sky over North America has been growing brighter by about 10% per year since 2011. More and more research is linking all that light pollution to a surprising range of health consequences: cancer, heart disease, diabetes, Alzheimer’s disease, and even low sperm quality, though the reasons for these troubling associations are not always clear. 

“We’ve lost the contrast between light and dark, and we are confusing our physiology on a regular basis,” said John Hanifin, PhD, associate director of Thomas Jefferson University’s Light Research Program. 

Our own galaxy is invisible to nearly 80% of people in North America. In 1994, an earthquake-triggered blackout in Los Angeles led to calls to the Griffith Observatory from people wondering about that hazy blob of light in the night sky. It was the Milky Way.

Glaring headlights, illuminated buildings, blazing billboards, and streetlights fill our urban skies with a glow that even affects rural residents. Inside, since the invention of the lightbulb, we’ve kept our homes bright at night. Now, we’ve also added blue light-emitting devices — smartphones, television screens, tablets — which have been linked to sleep problems.

But outdoor light may matter for our health, too. “Every photon counts,” Hanifin said. 
 

Bright Lights, Big Problems

For one 2024 study researchers used satellite data to measure light pollution at residential addresses of over 13,000 people. They found that those who lived in places with the brightest skies at night had a 31% higher risk of high blood pressure. Another study out of Hong Kong showed a 29% higher risk of death from coronary heart disease. And yet another found a 17%higher risk of cerebrovascular disease, such as strokes or brain aneurysms. 

Of course, urban areas also have air pollution, noise, and a lack of greenery. So, for some studies, scientists controlled for these factors, and the correlation remained strong (although air pollution with fine particulate matter appeared to be worse for heart health than outdoor light). 

Research has found links between the nighttime glow outside and other diseases:

Breast cancer. “It’s a very strong correlation,” said Randy Nelson, PhD, a neuroscientist at West Virginia University. A study of over 100,000 teachers in California revealed that women living in areas with the most light pollution had a 12%higher risk. That effect is comparable to increasing your intake of ultra-processed foods by 10%. 

Alzheimer’s disease. In a study published this fall, outdoor light at night was more strongly linked to the disease than even alcohol misuse or obesity.

Diabetes. In one recent study, people living in the most illuminated areas had a 28% higher risk of diabetes than those residing in much darker places. In a country like China, scientists concluded that 9 million cases of diabetes could be linked to light pollution. 
 

What Happens in Your Body When You’re Exposed to Light at Night

Research has revealed that light at night (indoors or out) disrupts circadian clocks, increases inflammation, affects cell division, and suppresses melatonin, the “hormone of darkness.” “Darkness is very important,” Hanifin said. When he and his colleagues decades ago started studying the effects of light on human physiology, “people thought we were borderline crazy,” he said.

Nighttime illumination affects the health and behavior of species as diverse as Siberian hamsters, zebra finches, mice, crickets, and mosquitoes. Like most creatures on Earth, humans have internal clocks that are synced to the 24-hour cycle of day and night. The master clock is in your hypothalamus, a diamond-shaped part of the brain, but every cell in your body has its own clock, too. Many physiological processes run on circadian rhythms (a term derived from a Latin phrase meaning “about a day”), from sleep-wake cycle to hormone secretion, as well as processes involved in cancer progression, such as cell division.

“There are special photoreceptors in the eye that don’t deal with visual information. They just send light information,” Nelson said. “If you get light at the wrong time, you’re resetting the clocks.” 

This internal clock “prepares the body for various recurrent challenges, such as eating,” said Christian Benedict, PhD, a sleep researcher at Uppsala University, Sweden. “Light exposure [at night] can mess up this very important system.” This could mean, for instance, that your insulin is released at the wrong time, Benedict said, causing “a jet lag-ish condition that will then impair the ability to handle blood sugar.” Animal studies confirm that exposure to light at night can reduce glucose tolerance and alter insulin secretion – potential pathways to diabetes.

The hormone melatonin, produced when it’s dark by the pineal gland in the brain, is a key player in this modern struggle. Melatonin helps you sleep, synchronizes the body’s circadian rhythms, protects neurons from damage, regulates the immune system, and fights inflammation. But even a sliver of light at night can suppress its secretion. Less than 30 lux of light, about the level of a pedestrian street at night, can slash melatonin by half. 

When lab animals are exposed to nighttime light, they “show enormous neuroinflammation” — that is, inflammation of nervous tissue, Nelson said. In one experiment on humans, those who slept immersed in weak light had higher levels of C-reactive protein in their blood, a marker of inflammation.

Low melatonin has also been linked to cancer. It “allows the metabolic machinery of the cancer cells to be active,” Hanifin said. One of melatonin’s effects is stimulation of natural killer cells, which can recognize and destroy cancer cells. What’s more, when melatonin plunges, estrogen may go up, which could explain the link between light at night and breast cancer (estrogen fuels tumor growth in breast cancers). 

Researchers concede that satellite data might be too coarse to estimate how much light people are actually exposed to while they sleep. Plus, many of us are staring at bright screens. “But the studies keep coming,” Nelson said, suggesting that outdoor light pollution does have an impact. 

When researchers put wrist-worn light sensors on over 80,000 British people, they found that the more light the device registered between half-past midnight and 6 a.m., the more its wearer was at risk of having diabetes several years down the road — no matter how long they’ve actually slept. This, according to the study’s authors, supports the findings of satellite data.

A similar study that used actigraphy with built-in light sensors, measuring whether people had been sleeping in complete darkness for at least five hours, found that light pollution upped the risk of heart disease by 74%.
 

What Can You Do About This?

Not everyone’s melatonin is affected by nighttime light to the same degree. “Some people are very much sensitive to very dim light, whereas others are not as sensitive and need far, far more light stimulation [to impact melatonin],” Benedict said. In one study, some volunteers needed 350 lux to lower their melatonin by half. For such people, flipping on the light in the bathroom at night wouldn’t matter; for others, though, a mere 6 lux was already as harmful – which is darker than twilight. 

You can protect yourself by keeping your bedroom lights off and your screens stashed away, but avoiding outdoor light pollution may be harder. You can invest in high-quality blackout curtains, of course, although some light may still seep inside. You can plant trees in front of your windows, reorient any motion-detector lights, and even petition your local government to reduce over-illumination of buildings and to choose better streetlights. You can support organizations, such as the International Dark-Sky Association, that work to preserve darkness.

Last but not least, you might want to change your habits. If you live in a particularly light-polluted area, such as the District of Columbia, America’s top place for urban blaze, you might reconsider late-night walks or drives around the neighborhood. Instead, Hanifin said, read a book in bed, while keeping the light “as dim as you can.” It’s “a much better idea versus being outside in midtown Manhattan,” he said. According to recent recommendations published by Hanifin and his colleagues, when you sleep, there should be no more than 1 lux of illumination at the level of your eyes — about as much as you’d get from having a lit candle 1 meter away. 

And if we manage to preserve outdoor darkness, and the stars reappear (including the breathtaking Milky Way), we could reap more benefits — some research suggests that stargazing can elicit positive emotions, a sense of personal growth, and “a variety of transcendent thoughts and experiences.” 
 

A version of this article appeared on WebMD.com.

This October, millions of Americans missed out on two of the most spectacular shows in the universe: the northern lights and a rare comet. Even if you were aware of them, light pollution made them difficult to see, unless you went to a dark area and let your eyes adjust.

It’s not getting any easier — the night sky over North America has been growing brighter by about 10% per year since 2011. More and more research is linking all that light pollution to a surprising range of health consequences: cancer, heart disease, diabetes, Alzheimer’s disease, and even low sperm quality, though the reasons for these troubling associations are not always clear. 

“We’ve lost the contrast between light and dark, and we are confusing our physiology on a regular basis,” said John Hanifin, PhD, associate director of Thomas Jefferson University’s Light Research Program. 

Our own galaxy is invisible to nearly 80% of people in North America. In 1994, an earthquake-triggered blackout in Los Angeles led to calls to the Griffith Observatory from people wondering about that hazy blob of light in the night sky. It was the Milky Way.

Glaring headlights, illuminated buildings, blazing billboards, and streetlights fill our urban skies with a glow that even affects rural residents. Inside, since the invention of the lightbulb, we’ve kept our homes bright at night. Now, we’ve also added blue light-emitting devices — smartphones, television screens, tablets — which have been linked to sleep problems.

But outdoor light may matter for our health, too. “Every photon counts,” Hanifin said. 
 

Bright Lights, Big Problems

For one 2024 study researchers used satellite data to measure light pollution at residential addresses of over 13,000 people. They found that those who lived in places with the brightest skies at night had a 31% higher risk of high blood pressure. Another study out of Hong Kong showed a 29% higher risk of death from coronary heart disease. And yet another found a 17%higher risk of cerebrovascular disease, such as strokes or brain aneurysms. 

Of course, urban areas also have air pollution, noise, and a lack of greenery. So, for some studies, scientists controlled for these factors, and the correlation remained strong (although air pollution with fine particulate matter appeared to be worse for heart health than outdoor light). 

Research has found links between the nighttime glow outside and other diseases:

Breast cancer. “It’s a very strong correlation,” said Randy Nelson, PhD, a neuroscientist at West Virginia University. A study of over 100,000 teachers in California revealed that women living in areas with the most light pollution had a 12%higher risk. That effect is comparable to increasing your intake of ultra-processed foods by 10%. 

Alzheimer’s disease. In a study published this fall, outdoor light at night was more strongly linked to the disease than even alcohol misuse or obesity.

Diabetes. In one recent study, people living in the most illuminated areas had a 28% higher risk of diabetes than those residing in much darker places. In a country like China, scientists concluded that 9 million cases of diabetes could be linked to light pollution. 
 

What Happens in Your Body When You’re Exposed to Light at Night

Research has revealed that light at night (indoors or out) disrupts circadian clocks, increases inflammation, affects cell division, and suppresses melatonin, the “hormone of darkness.” “Darkness is very important,” Hanifin said. When he and his colleagues decades ago started studying the effects of light on human physiology, “people thought we were borderline crazy,” he said.

Nighttime illumination affects the health and behavior of species as diverse as Siberian hamsters, zebra finches, mice, crickets, and mosquitoes. Like most creatures on Earth, humans have internal clocks that are synced to the 24-hour cycle of day and night. The master clock is in your hypothalamus, a diamond-shaped part of the brain, but every cell in your body has its own clock, too. Many physiological processes run on circadian rhythms (a term derived from a Latin phrase meaning “about a day”), from sleep-wake cycle to hormone secretion, as well as processes involved in cancer progression, such as cell division.

“There are special photoreceptors in the eye that don’t deal with visual information. They just send light information,” Nelson said. “If you get light at the wrong time, you’re resetting the clocks.” 

This internal clock “prepares the body for various recurrent challenges, such as eating,” said Christian Benedict, PhD, a sleep researcher at Uppsala University, Sweden. “Light exposure [at night] can mess up this very important system.” This could mean, for instance, that your insulin is released at the wrong time, Benedict said, causing “a jet lag-ish condition that will then impair the ability to handle blood sugar.” Animal studies confirm that exposure to light at night can reduce glucose tolerance and alter insulin secretion – potential pathways to diabetes.

The hormone melatonin, produced when it’s dark by the pineal gland in the brain, is a key player in this modern struggle. Melatonin helps you sleep, synchronizes the body’s circadian rhythms, protects neurons from damage, regulates the immune system, and fights inflammation. But even a sliver of light at night can suppress its secretion. Less than 30 lux of light, about the level of a pedestrian street at night, can slash melatonin by half. 

When lab animals are exposed to nighttime light, they “show enormous neuroinflammation” — that is, inflammation of nervous tissue, Nelson said. In one experiment on humans, those who slept immersed in weak light had higher levels of C-reactive protein in their blood, a marker of inflammation.

Low melatonin has also been linked to cancer. It “allows the metabolic machinery of the cancer cells to be active,” Hanifin said. One of melatonin’s effects is stimulation of natural killer cells, which can recognize and destroy cancer cells. What’s more, when melatonin plunges, estrogen may go up, which could explain the link between light at night and breast cancer (estrogen fuels tumor growth in breast cancers). 

Researchers concede that satellite data might be too coarse to estimate how much light people are actually exposed to while they sleep. Plus, many of us are staring at bright screens. “But the studies keep coming,” Nelson said, suggesting that outdoor light pollution does have an impact. 

When researchers put wrist-worn light sensors on over 80,000 British people, they found that the more light the device registered between half-past midnight and 6 a.m., the more its wearer was at risk of having diabetes several years down the road — no matter how long they’ve actually slept. This, according to the study’s authors, supports the findings of satellite data.

A similar study that used actigraphy with built-in light sensors, measuring whether people had been sleeping in complete darkness for at least five hours, found that light pollution upped the risk of heart disease by 74%.
 

What Can You Do About This?

Not everyone’s melatonin is affected by nighttime light to the same degree. “Some people are very much sensitive to very dim light, whereas others are not as sensitive and need far, far more light stimulation [to impact melatonin],” Benedict said. In one study, some volunteers needed 350 lux to lower their melatonin by half. For such people, flipping on the light in the bathroom at night wouldn’t matter; for others, though, a mere 6 lux was already as harmful – which is darker than twilight. 

You can protect yourself by keeping your bedroom lights off and your screens stashed away, but avoiding outdoor light pollution may be harder. You can invest in high-quality blackout curtains, of course, although some light may still seep inside. You can plant trees in front of your windows, reorient any motion-detector lights, and even petition your local government to reduce over-illumination of buildings and to choose better streetlights. You can support organizations, such as the International Dark-Sky Association, that work to preserve darkness.

Last but not least, you might want to change your habits. If you live in a particularly light-polluted area, such as the District of Columbia, America’s top place for urban blaze, you might reconsider late-night walks or drives around the neighborhood. Instead, Hanifin said, read a book in bed, while keeping the light “as dim as you can.” It’s “a much better idea versus being outside in midtown Manhattan,” he said. According to recent recommendations published by Hanifin and his colleagues, when you sleep, there should be no more than 1 lux of illumination at the level of your eyes — about as much as you’d get from having a lit candle 1 meter away. 

And if we manage to preserve outdoor darkness, and the stars reappear (including the breathtaking Milky Way), we could reap more benefits — some research suggests that stargazing can elicit positive emotions, a sense of personal growth, and “a variety of transcendent thoughts and experiences.” 
 

A version of this article appeared on WebMD.com.

With the approval of anti-amyloid monoclonal antibodies to treat early-stage Alzheimer’s disease, the need for accurate and early diagnosis is crucial.

Blood-based biomarkers offer a promising alternative to amyloid PET scans and cerebrospinal fluid (CSF) analysis and are being increasingly used in clinical practice to support an Alzheimer’s disease diagnosis.

Recently, an expert workgroup convened by the Global CEO Initiative on Alzheimer’s Disease published recommendations for the clinical implementation of Alzheimer’s disease blood-based biomarkers.

“Our hope was to provide some recommendations that clinicians could use to develop the best pathways for their clinical practice,” said workgroup co-chair Michelle M. Mielke, PhD, with Wake Forest University School of Medicine, Winston-Salem, North Carolina.
 

Triage and Confirmatory Pathways

The group recommends two implementation pathways for Alzheimer’s disease blood biomarkers — one for current use for triaging and another for future use to confirm amyloid pathology once blood biomarker tests have reached sufficient performance for this purpose.

In the triage pathway, a negative blood biomarker test would flag individuals unlikely to have detectable brain amyloid pathology. This outcome would prompt clinicians to focus on evaluating non–Alzheimer’s disease-related causes of cognitive impairment, which may streamline the diagnosis of other causes of cognitive impairment, the authors said.

A positive triage blood test would suggest a higher likelihood of amyloid pathology and prompt referral to secondary care for further assessment and consideration for a second, more accurate test, such as amyloid PET or CSF for amyloid confirmation.

In the confirmatory pathway, a positive blood biomarker test result would identify amyloid pathology without the need for a second test, providing a faster route to diagnosis, the authors noted.

Mielke emphasized that these recommendations represent a “first step” and will need to be updated as experiences with the Alzheimer’s disease blood biomarkers in clinical care increase and additional barriers and facilitators are identified.

“These updates will likely include community-informed approaches that incorporate feedback from patients as well as healthcare providers, alongside results from validation in diverse real-world settings,” said workgroup co-chair Chi Udeh-Momoh, PhD, MSc, with Wake Forest University School of Medicine and the Brain and Mind Institute, Aga Khan University, Nairobi, Kenya.

The Alzheimer’s Association published “appropriate use” recommendations for blood biomarkers in 2022.

“Currently, the Alzheimer’s Association is building an updated library of clinical guidance that distills the scientific evidence using de novo systematic reviews and translates them into clear and actionable recommendations for clinical practice,” said Rebecca M. Edelmayer, PhD, vice president of scientific engagement, Alzheimer’s Association.

“The first major effort with our new process will be the upcoming Evidence-based Clinical Practice Guideline on the Use of Blood-based Biomarkers (BBMs) in Specialty Care Settings. This guideline’s recommendations will be published in early 2025,” Edelmayer said.
 

Availability and Accuracy

Research has shown that amyloid beta and tau protein blood biomarkers — especially a high plasma phosphorylated (p)–tau217 levels — are highly accurate in identifying Alzheimer’s disease in patients with cognitive symptoms attending primary and secondary care clinics.

Several tests targeting plasma p-tau217 are now available for use. They include the PrecivityAD2 blood test from C2N Diagnostics and the Simoa p-Tau 217 Planar Kit and LucentAD p-Tau 217 — both from Quanterix.

In a recent head-to-head comparison of seven leading blood tests for AD pathology, measures of plasma p-tau217, either individually or in combination with other plasma biomarkers, had the strongest relationships with Alzheimer’s disease outcomes.

A recent Swedish study showed that the PrecivityAD2 test had an accuracy of 91% for correctly classifying clinical, biomarker-verified Alzheimer’s disease.

“We’ve been using these blood biomarkers in research for a long time and we’re now taking the jump to start using them in clinic to risk stratify patients,” said Fanny Elahi, MD, PhD, director of fluid biomarker research for the Barbara and Maurice Deane Center for Wellness and Cognitive Health at Icahn Mount Sinai in New York City.

New York’s Mount Sinai Health System is among the first in the northeast to offer blood tests across primary and specialty care settings for early diagnosis of AD and related dementias.

Edelmayer cautioned, “There is no single, stand-alone test to diagnose Alzheimer’s disease today. Blood testing is one piece of the diagnostic process.”

“Currently, physicians use well-established diagnostic tools combined with medical history and other information, including neurological exams, cognitive and functional assessments as well as brain imaging and spinal fluid analysis and blood to make an accurate diagnosis and to understand which patients are eligible for approved treatments,” she said.

There are also emerging biomarkers in the research pipeline, Edelmayer said.

“For example, some researchers think retinal imaging has the potential to detect biological signs of Alzheimer’s disease within certain areas of the eye,” she explained.

“Other emerging biomarkers include examining components in saliva and the skin for signals that may indicate early biological changes in the brain. These biomarkers are still very exploratory, and more research is needed before these tests or biomarkers can be used more routinely to study risk or aid in diagnosis,” Edelmayer said.
 

Ideal Candidates for Alzheimer’s Disease Blood Testing?

Experts agree that blood tests represent a convenient and scalable option to address the anticipated surge in demand for biomarker testing with the availability of disease-modifying treatments. For now, however, they are not for all older adults worried about their memory.

“Current practice should focus on using these blood biomarkers in individuals with cognitive impairment rather than in those with normal cognition or subjective cognitive decline until further research demonstrates effective interventions for individuals considered cognitively normal with elevated levels of amyloid,” the authors of a recent JAMA editorial noted.

At Mount Sinai, “we’re not starting with stone-cold asymptomatic individuals. But ultimately, this is what the blood tests are intended for — screening,” Elahi noted.

She also noted that Mount Sinai has a “very diverse population” — some with young onset cognitive symptoms, so the entry criteria for testing are “very wide.”

“Anyone above age 40 with symptoms can qualify to get a blood test. We do ask at this stage that either the individual report symptoms or someone in their life or their clinician be worried about their cognition or their brain function,” Elahi said.
 

Ethical Considerations, Counseling

Elahi emphasized the importance of counseling patients who come to the clinic seeking an Alzheimer’s disease blood test. This should include how the diagnostic process will unfold and what the next steps are with a given result.

Elahi said patients need to be informed that Alzheimer’s disease blood biomarkers are still “relatively new,” and a test can help a patient “know the likelihood of having the disease, but it won’t be 100% definitive.”

To ensure the ethical principle of “do no harm,” counseling should ensure that patients are fully prepared for the implications of the test results and ensure that the decision to test aligns with the patient’s readiness and well-being, Elahi said.

Edelmayer said the forthcoming clinical practice guidelines will provide “evidence-based recommendations for physicians to help guide them through the decision-making process around who should be tested and when. In the meantime, the Alzheimer’s Association urges providers to refer to the 2022 appropriate use recommendations for blood tests in clinical practice and trial settings.”

Mielke has served on scientific advisory boards and/or having consulted for Acadia, Biogen, Eisai, LabCorp, Lilly, Merck, PeerView Institute, Roche, Siemens Healthineers, and Sunbird Bio. Edelmayer and Elahi had no relevant disclosures.
 

A version of this article appeared on Medscape.com.

With the approval of anti-amyloid monoclonal antibodies to treat early-stage Alzheimer’s disease, the need for accurate and early diagnosis is crucial.

Blood-based biomarkers offer a promising alternative to amyloid PET scans and cerebrospinal fluid (CSF) analysis and are being increasingly used in clinical practice to support an Alzheimer’s disease diagnosis.

Recently, an expert workgroup convened by the Global CEO Initiative on Alzheimer’s Disease published recommendations for the clinical implementation of Alzheimer’s disease blood-based biomarkers.

“Our hope was to provide some recommendations that clinicians could use to develop the best pathways for their clinical practice,” said workgroup co-chair Michelle M. Mielke, PhD, with Wake Forest University School of Medicine, Winston-Salem, North Carolina.
 

Triage and Confirmatory Pathways

The group recommends two implementation pathways for Alzheimer’s disease blood biomarkers — one for current use for triaging and another for future use to confirm amyloid pathology once blood biomarker tests have reached sufficient performance for this purpose.

In the triage pathway, a negative blood biomarker test would flag individuals unlikely to have detectable brain amyloid pathology. This outcome would prompt clinicians to focus on evaluating non–Alzheimer’s disease-related causes of cognitive impairment, which may streamline the diagnosis of other causes of cognitive impairment, the authors said.

A positive triage blood test would suggest a higher likelihood of amyloid pathology and prompt referral to secondary care for further assessment and consideration for a second, more accurate test, such as amyloid PET or CSF for amyloid confirmation.

In the confirmatory pathway, a positive blood biomarker test result would identify amyloid pathology without the need for a second test, providing a faster route to diagnosis, the authors noted.

Mielke emphasized that these recommendations represent a “first step” and will need to be updated as experiences with the Alzheimer’s disease blood biomarkers in clinical care increase and additional barriers and facilitators are identified.

“These updates will likely include community-informed approaches that incorporate feedback from patients as well as healthcare providers, alongside results from validation in diverse real-world settings,” said workgroup co-chair Chi Udeh-Momoh, PhD, MSc, with Wake Forest University School of Medicine and the Brain and Mind Institute, Aga Khan University, Nairobi, Kenya.

The Alzheimer’s Association published “appropriate use” recommendations for blood biomarkers in 2022.

“Currently, the Alzheimer’s Association is building an updated library of clinical guidance that distills the scientific evidence using de novo systematic reviews and translates them into clear and actionable recommendations for clinical practice,” said Rebecca M. Edelmayer, PhD, vice president of scientific engagement, Alzheimer’s Association.

“The first major effort with our new process will be the upcoming Evidence-based Clinical Practice Guideline on the Use of Blood-based Biomarkers (BBMs) in Specialty Care Settings. This guideline’s recommendations will be published in early 2025,” Edelmayer said.
 

Availability and Accuracy

Research has shown that amyloid beta and tau protein blood biomarkers — especially a high plasma phosphorylated (p)–tau217 levels — are highly accurate in identifying Alzheimer’s disease in patients with cognitive symptoms attending primary and secondary care clinics.

Several tests targeting plasma p-tau217 are now available for use. They include the PrecivityAD2 blood test from C2N Diagnostics and the Simoa p-Tau 217 Planar Kit and LucentAD p-Tau 217 — both from Quanterix.

In a recent head-to-head comparison of seven leading blood tests for AD pathology, measures of plasma p-tau217, either individually or in combination with other plasma biomarkers, had the strongest relationships with Alzheimer’s disease outcomes.

A recent Swedish study showed that the PrecivityAD2 test had an accuracy of 91% for correctly classifying clinical, biomarker-verified Alzheimer’s disease.

“We’ve been using these blood biomarkers in research for a long time and we’re now taking the jump to start using them in clinic to risk stratify patients,” said Fanny Elahi, MD, PhD, director of fluid biomarker research for the Barbara and Maurice Deane Center for Wellness and Cognitive Health at Icahn Mount Sinai in New York City.

New York’s Mount Sinai Health System is among the first in the northeast to offer blood tests across primary and specialty care settings for early diagnosis of AD and related dementias.

Edelmayer cautioned, “There is no single, stand-alone test to diagnose Alzheimer’s disease today. Blood testing is one piece of the diagnostic process.”

“Currently, physicians use well-established diagnostic tools combined with medical history and other information, including neurological exams, cognitive and functional assessments as well as brain imaging and spinal fluid analysis and blood to make an accurate diagnosis and to understand which patients are eligible for approved treatments,” she said.

There are also emerging biomarkers in the research pipeline, Edelmayer said.

“For example, some researchers think retinal imaging has the potential to detect biological signs of Alzheimer’s disease within certain areas of the eye,” she explained.

“Other emerging biomarkers include examining components in saliva and the skin for signals that may indicate early biological changes in the brain. These biomarkers are still very exploratory, and more research is needed before these tests or biomarkers can be used more routinely to study risk or aid in diagnosis,” Edelmayer said.
 

Ideal Candidates for Alzheimer’s Disease Blood Testing?

Experts agree that blood tests represent a convenient and scalable option to address the anticipated surge in demand for biomarker testing with the availability of disease-modifying treatments. For now, however, they are not for all older adults worried about their memory.

“Current practice should focus on using these blood biomarkers in individuals with cognitive impairment rather than in those with normal cognition or subjective cognitive decline until further research demonstrates effective interventions for individuals considered cognitively normal with elevated levels of amyloid,” the authors of a recent JAMA editorial noted.

At Mount Sinai, “we’re not starting with stone-cold asymptomatic individuals. But ultimately, this is what the blood tests are intended for — screening,” Elahi noted.

She also noted that Mount Sinai has a “very diverse population” — some with young onset cognitive symptoms, so the entry criteria for testing are “very wide.”

“Anyone above age 40 with symptoms can qualify to get a blood test. We do ask at this stage that either the individual report symptoms or someone in their life or their clinician be worried about their cognition or their brain function,” Elahi said.
 

Ethical Considerations, Counseling

Elahi emphasized the importance of counseling patients who come to the clinic seeking an Alzheimer’s disease blood test. This should include how the diagnostic process will unfold and what the next steps are with a given result.

Elahi said patients need to be informed that Alzheimer’s disease blood biomarkers are still “relatively new,” and a test can help a patient “know the likelihood of having the disease, but it won’t be 100% definitive.”

To ensure the ethical principle of “do no harm,” counseling should ensure that patients are fully prepared for the implications of the test results and ensure that the decision to test aligns with the patient’s readiness and well-being, Elahi said.

Edelmayer said the forthcoming clinical practice guidelines will provide “evidence-based recommendations for physicians to help guide them through the decision-making process around who should be tested and when. In the meantime, the Alzheimer’s Association urges providers to refer to the 2022 appropriate use recommendations for blood tests in clinical practice and trial settings.”

Mielke has served on scientific advisory boards and/or having consulted for Acadia, Biogen, Eisai, LabCorp, Lilly, Merck, PeerView Institute, Roche, Siemens Healthineers, and Sunbird Bio. Edelmayer and Elahi had no relevant disclosures.
 

A version of this article appeared on Medscape.com.

With the approval of anti-amyloid monoclonal antibodies to treat early-stage Alzheimer’s disease, the need for accurate and early diagnosis is crucial.

Blood-based biomarkers offer a promising alternative to amyloid PET scans and cerebrospinal fluid (CSF) analysis and are being increasingly used in clinical practice to support an Alzheimer’s disease diagnosis.

Recently, an expert workgroup convened by the Global CEO Initiative on Alzheimer’s Disease published recommendations for the clinical implementation of Alzheimer’s disease blood-based biomarkers.

“Our hope was to provide some recommendations that clinicians could use to develop the best pathways for their clinical practice,” said workgroup co-chair Michelle M. Mielke, PhD, with Wake Forest University School of Medicine, Winston-Salem, North Carolina.
 

Triage and Confirmatory Pathways

The group recommends two implementation pathways for Alzheimer’s disease blood biomarkers — one for current use for triaging and another for future use to confirm amyloid pathology once blood biomarker tests have reached sufficient performance for this purpose.

In the triage pathway, a negative blood biomarker test would flag individuals unlikely to have detectable brain amyloid pathology. This outcome would prompt clinicians to focus on evaluating non–Alzheimer’s disease-related causes of cognitive impairment, which may streamline the diagnosis of other causes of cognitive impairment, the authors said.

A positive triage blood test would suggest a higher likelihood of amyloid pathology and prompt referral to secondary care for further assessment and consideration for a second, more accurate test, such as amyloid PET or CSF for amyloid confirmation.

In the confirmatory pathway, a positive blood biomarker test result would identify amyloid pathology without the need for a second test, providing a faster route to diagnosis, the authors noted.

Mielke emphasized that these recommendations represent a “first step” and will need to be updated as experiences with the Alzheimer’s disease blood biomarkers in clinical care increase and additional barriers and facilitators are identified.

“These updates will likely include community-informed approaches that incorporate feedback from patients as well as healthcare providers, alongside results from validation in diverse real-world settings,” said workgroup co-chair Chi Udeh-Momoh, PhD, MSc, with Wake Forest University School of Medicine and the Brain and Mind Institute, Aga Khan University, Nairobi, Kenya.

The Alzheimer’s Association published “appropriate use” recommendations for blood biomarkers in 2022.

“Currently, the Alzheimer’s Association is building an updated library of clinical guidance that distills the scientific evidence using de novo systematic reviews and translates them into clear and actionable recommendations for clinical practice,” said Rebecca M. Edelmayer, PhD, vice president of scientific engagement, Alzheimer’s Association.

“The first major effort with our new process will be the upcoming Evidence-based Clinical Practice Guideline on the Use of Blood-based Biomarkers (BBMs) in Specialty Care Settings. This guideline’s recommendations will be published in early 2025,” Edelmayer said.
 

Availability and Accuracy

Research has shown that amyloid beta and tau protein blood biomarkers — especially a high plasma phosphorylated (p)–tau217 levels — are highly accurate in identifying Alzheimer’s disease in patients with cognitive symptoms attending primary and secondary care clinics.

Several tests targeting plasma p-tau217 are now available for use. They include the PrecivityAD2 blood test from C2N Diagnostics and the Simoa p-Tau 217 Planar Kit and LucentAD p-Tau 217 — both from Quanterix.

In a recent head-to-head comparison of seven leading blood tests for AD pathology, measures of plasma p-tau217, either individually or in combination with other plasma biomarkers, had the strongest relationships with Alzheimer’s disease outcomes.

A recent Swedish study showed that the PrecivityAD2 test had an accuracy of 91% for correctly classifying clinical, biomarker-verified Alzheimer’s disease.

“We’ve been using these blood biomarkers in research for a long time and we’re now taking the jump to start using them in clinic to risk stratify patients,” said Fanny Elahi, MD, PhD, director of fluid biomarker research for the Barbara and Maurice Deane Center for Wellness and Cognitive Health at Icahn Mount Sinai in New York City.

New York’s Mount Sinai Health System is among the first in the northeast to offer blood tests across primary and specialty care settings for early diagnosis of AD and related dementias.

Edelmayer cautioned, “There is no single, stand-alone test to diagnose Alzheimer’s disease today. Blood testing is one piece of the diagnostic process.”

“Currently, physicians use well-established diagnostic tools combined with medical history and other information, including neurological exams, cognitive and functional assessments as well as brain imaging and spinal fluid analysis and blood to make an accurate diagnosis and to understand which patients are eligible for approved treatments,” she said.

There are also emerging biomarkers in the research pipeline, Edelmayer said.

“For example, some researchers think retinal imaging has the potential to detect biological signs of Alzheimer’s disease within certain areas of the eye,” she explained.

“Other emerging biomarkers include examining components in saliva and the skin for signals that may indicate early biological changes in the brain. These biomarkers are still very exploratory, and more research is needed before these tests or biomarkers can be used more routinely to study risk or aid in diagnosis,” Edelmayer said.
 

Ideal Candidates for Alzheimer’s Disease Blood Testing?

Experts agree that blood tests represent a convenient and scalable option to address the anticipated surge in demand for biomarker testing with the availability of disease-modifying treatments. For now, however, they are not for all older adults worried about their memory.

“Current practice should focus on using these blood biomarkers in individuals with cognitive impairment rather than in those with normal cognition or subjective cognitive decline until further research demonstrates effective interventions for individuals considered cognitively normal with elevated levels of amyloid,” the authors of a recent JAMA editorial noted.

At Mount Sinai, “we’re not starting with stone-cold asymptomatic individuals. But ultimately, this is what the blood tests are intended for — screening,” Elahi noted.

She also noted that Mount Sinai has a “very diverse population” — some with young onset cognitive symptoms, so the entry criteria for testing are “very wide.”

“Anyone above age 40 with symptoms can qualify to get a blood test. We do ask at this stage that either the individual report symptoms or someone in their life or their clinician be worried about their cognition or their brain function,” Elahi said.
 

Ethical Considerations, Counseling

Elahi emphasized the importance of counseling patients who come to the clinic seeking an Alzheimer’s disease blood test. This should include how the diagnostic process will unfold and what the next steps are with a given result.

Elahi said patients need to be informed that Alzheimer’s disease blood biomarkers are still “relatively new,” and a test can help a patient “know the likelihood of having the disease, but it won’t be 100% definitive.”

To ensure the ethical principle of “do no harm,” counseling should ensure that patients are fully prepared for the implications of the test results and ensure that the decision to test aligns with the patient’s readiness and well-being, Elahi said.

Edelmayer said the forthcoming clinical practice guidelines will provide “evidence-based recommendations for physicians to help guide them through the decision-making process around who should be tested and when. In the meantime, the Alzheimer’s Association urges providers to refer to the 2022 appropriate use recommendations for blood tests in clinical practice and trial settings.”

Mielke has served on scientific advisory boards and/or having consulted for Acadia, Biogen, Eisai, LabCorp, Lilly, Merck, PeerView Institute, Roche, Siemens Healthineers, and Sunbird Bio. Edelmayer and Elahi had no relevant disclosures.
 

A version of this article appeared on Medscape.com.