Migraine ICYMI

Adjunctive oral prednisone appears to significantly reduce cluster headache attacks, new research shows. Results of the multicenter, randomized, double-blind trial show that patients who received the steroid had 25% fewer attacks in the first week of therapy, compared with their counterparts who received placebo.

In addition, more than a third of patients in the prednisone group were pain free, and for almost half, headache frequency was reduced by at least 50% at day 7 of treatment.

These findings provide clear evidence that prednisone, in conjunction with the use of verapamil, is effective in cluster headache, said lead author Mark Obermann, MD, director, Center for Neurology, Asklepios Hospitals Seesen (Germany), and associate professor, University of Duisburg-Essen (Germany).

The key message, he added, is that all patients with cluster headache should receive prednisone at the start of an episode.

The study was published online Nov. 24 in the Lancet Neurology.
 

‘Suicide headaches’

Cluster headaches are intense unilateral attacks of facial and head pain. They last 15-180 minutes and predominantly affect men. They are accompanied by trigeminal autonomic symptoms and are extremely painful. “They’re referred to as ‘suicide headaches’ because the pain is so severe that patients often report they think about killing themselves to get rid of the pain,” said Dr. Obermann.

The cause is unclear, although there is some evidence that the hypothalamus is involved. The headaches sometimes follow a “strict circadian pattern,” said Dr. Obermann. He noted that the attacks might occur over a few weeks or months and then not return for months or even years.

An estimated 1 in 1,000 people experience cluster headache, but the condition is underrecognized, and research is scarce and poorly funded. Previous research does show that the calcium channel blocker verapamil, which is used to treat high blood pressure, is effective in cluster headache. However, it takes about 14 days to work and has to be slowly titrated because of cardiac side effects, said Dr. Obermann. For these reasons, international guidelines recommend initiating short-term preventive treatment with corticosteroids to suppress, or at least lessen, cluster headache attacks until long-term prevention is effective.

Although some clinicians treat cluster headaches with corticosteroids, others don’t because of a lack of evidence that shows they are effective. “There’s no evidence whatsoever on what the correct dose is or whether it helps at all. This is the gap we wanted to close,” said Dr. Obermann.

The study included 116 adult patients with cluster headache from 10 centers who were experiencing a cluster headache episode and were not taking prophylactic medication.

The trial only included patients who had an attack within 30 days of their current episode. The investigators included this restriction to reduce the possibility of spontaneous remission, which is “a big problem” in cluster headache trials, he said. To confirm that episodes were cluster headache attacks, patients were also required to have moderate to severe pain, indicated by a score of at least 5 on a numerical rating scale in which 0 indicates no pain and 10 indicates the worse imaginable pain.

Participants were allowed to use treatments for acute attack, but these therapies were limited to triptans, high-flow oxygen, intranasal lidocaine, ergotamine, and oral analgesics.
 

Debilitating pain

Patients were randomly assigned to receive oral prednisone (n = 53) or placebo (n = 56). The study groups were matched with respect to demographic and clinical characteristics. Prednisone was initiated at 100 mg/d for 5 days and was then tapered by 20 mg every 3 days in the active-treatment group. All patients also received oral verapamil at a starting dose of 40 mg three times per day. The dose was increased every 3 days by 40 mg to a maximum of 360 mg/d.

All participants received pantoprazole 20 mg to prevent the gastric side effects of prednisone. An attack was defined as a unilateral headache of moderate to severe intensity. The study lasted 28 days.

The study’s primary outcome was the mean number of cluster headache attacks during the first week of treatment with prednisone versus placebo.

The mean number of attacks during the first week of treatment was 7.1 in the prednisone group and 9.5 in the placebo group, for a difference of –2.4 attacks (95% confidence interval, –4.8 to –0.03; P = .002). “This might not sound like much,” but reducing the number of daily attacks from, say, eight to six “really makes a difference because the attacks are so painful,” said Dr. Obermann.

The prednisone group also came out on top for a number secondary outcomes. After the first 7 days, attacks ceased in 35% of the prednisone group versus 7% in the placebo group.
 

‘Clear evidence’ of efficacy

About 49% of patients who took prednisone reported a reduction of at least 50% in attack frequency at day 7. By comparison, 15% of patients who received placebo reported such a reduction. The number of cluster attacks at day 28 was less in the prednisone group than in the patients who received placebo.

With respect to treatment effect, the difference between prednisone and placebo gradually lessened over time “in parallel to the verapamil dose reaching its therapeutic effect,” the investigators noted. “Therefore, attack frequency reduction slowly converged between groups,” they added.

The study results provide “clear evidence” and should reassure clinicians that short-term prednisone early in a cluster headache attack is effective, said Dr. Obermann.

Adverse events, which included headache, palpitations, dizziness, and nausea, were as expected and were similar in the two groups. There were only two severe adverse events, both of which occurred in participants in the placebo group.

Dr. Obermann said the investigators were surprised that so many patients in the study were taking analgesics. “Analgesics don’t work in cluster headache; they just don’t work in this kind of pain.”

He noted that prednisone exposure of study patients spanned only 19 days and amounted to only 1,100 mg, which he believes is safe.

The prednisone dose used in the study is “what most clinicians use in clinical practice,” although there have been reports of success using 500 mg of IV prednisone over 5 days, said Dr. Obermann. He added that it would be “interesting to see if 50 mg would be just as good” as a starting dose.

Potential limitations of the study include the fact that the majority of participants were White, so the findings may not be generalizable to other populations.
 

Long-awaited results

In an accompanying editorial, Anne Ducros, MD, PhD, professor of neurology and director of the Headache Center, Montpellier (France) University Hospital, said the study provides “strong and long-awaited evidence supporting the use of oral steroids as a transitional treatment option.”

The trial “raises many topics for future research,” one of which is the long-term safety of prednisone for patients with cluster headache, said Dr. Ducros. She noted that use of high-dose steroids once or twice a year for 15 years or more “has the potential for severe systemic toxic effects,” such as corticosteroid-induced osteonecrosis of the femoral head.

Other questions about corticosteroid use for patients with cluster headache remain. These include understanding whether these agents provide better efficacy than occipital nerve injections and determining the optimal verapamil regimen, she noted.

In addition, the risk for oral steroid misuse needs to be studied, she said. She noted that drug misuse is common among patients with cluster headache.

Despite these questions, the results of this new study “provide an important step forward for patients with cluster headache, for whom safe and effective transitional therapies are much needed,” Dr. Ducros wrote.


Dr. Obermann has received fees from Sanofi, Biogen, Novartis, Teva Pharmaceuticals, and Eli Lilly and grants from Allergan and Heel Pharmaceuticals outside of this work. Dr. Ducros has received fees from Amgen, Novartis, Teva, and Eli Lilly; grants from the Programme Hospitalier de Recherche Clinique and from the Appel d’Offre Interne of Montpellier University Hospital; and nonfinancial support from SOS Oxygene.

A version of this article originally appeared on Medscape.com.

Adjunctive oral prednisone appears to significantly reduce cluster headache attacks, new research shows. Results of the multicenter, randomized, double-blind trial show that patients who received the steroid had 25% fewer attacks in the first week of therapy, compared with their counterparts who received placebo.

In addition, more than a third of patients in the prednisone group were pain free, and for almost half, headache frequency was reduced by at least 50% at day 7 of treatment.

These findings provide clear evidence that prednisone, in conjunction with the use of verapamil, is effective in cluster headache, said lead author Mark Obermann, MD, director, Center for Neurology, Asklepios Hospitals Seesen (Germany), and associate professor, University of Duisburg-Essen (Germany).

The key message, he added, is that all patients with cluster headache should receive prednisone at the start of an episode.

The study was published online Nov. 24 in the Lancet Neurology.
 

‘Suicide headaches’

Cluster headaches are intense unilateral attacks of facial and head pain. They last 15-180 minutes and predominantly affect men. They are accompanied by trigeminal autonomic symptoms and are extremely painful. “They’re referred to as ‘suicide headaches’ because the pain is so severe that patients often report they think about killing themselves to get rid of the pain,” said Dr. Obermann.

The cause is unclear, although there is some evidence that the hypothalamus is involved. The headaches sometimes follow a “strict circadian pattern,” said Dr. Obermann. He noted that the attacks might occur over a few weeks or months and then not return for months or even years.

An estimated 1 in 1,000 people experience cluster headache, but the condition is underrecognized, and research is scarce and poorly funded. Previous research does show that the calcium channel blocker verapamil, which is used to treat high blood pressure, is effective in cluster headache. However, it takes about 14 days to work and has to be slowly titrated because of cardiac side effects, said Dr. Obermann. For these reasons, international guidelines recommend initiating short-term preventive treatment with corticosteroids to suppress, or at least lessen, cluster headache attacks until long-term prevention is effective.

Although some clinicians treat cluster headaches with corticosteroids, others don’t because of a lack of evidence that shows they are effective. “There’s no evidence whatsoever on what the correct dose is or whether it helps at all. This is the gap we wanted to close,” said Dr. Obermann.

The study included 116 adult patients with cluster headache from 10 centers who were experiencing a cluster headache episode and were not taking prophylactic medication.

The trial only included patients who had an attack within 30 days of their current episode. The investigators included this restriction to reduce the possibility of spontaneous remission, which is “a big problem” in cluster headache trials, he said. To confirm that episodes were cluster headache attacks, patients were also required to have moderate to severe pain, indicated by a score of at least 5 on a numerical rating scale in which 0 indicates no pain and 10 indicates the worse imaginable pain.

Participants were allowed to use treatments for acute attack, but these therapies were limited to triptans, high-flow oxygen, intranasal lidocaine, ergotamine, and oral analgesics.
 

Debilitating pain

Patients were randomly assigned to receive oral prednisone (n = 53) or placebo (n = 56). The study groups were matched with respect to demographic and clinical characteristics. Prednisone was initiated at 100 mg/d for 5 days and was then tapered by 20 mg every 3 days in the active-treatment group. All patients also received oral verapamil at a starting dose of 40 mg three times per day. The dose was increased every 3 days by 40 mg to a maximum of 360 mg/d.

All participants received pantoprazole 20 mg to prevent the gastric side effects of prednisone. An attack was defined as a unilateral headache of moderate to severe intensity. The study lasted 28 days.

The study’s primary outcome was the mean number of cluster headache attacks during the first week of treatment with prednisone versus placebo.

The mean number of attacks during the first week of treatment was 7.1 in the prednisone group and 9.5 in the placebo group, for a difference of –2.4 attacks (95% confidence interval, –4.8 to –0.03; P = .002). “This might not sound like much,” but reducing the number of daily attacks from, say, eight to six “really makes a difference because the attacks are so painful,” said Dr. Obermann.

The prednisone group also came out on top for a number secondary outcomes. After the first 7 days, attacks ceased in 35% of the prednisone group versus 7% in the placebo group.
 

‘Clear evidence’ of efficacy

About 49% of patients who took prednisone reported a reduction of at least 50% in attack frequency at day 7. By comparison, 15% of patients who received placebo reported such a reduction. The number of cluster attacks at day 28 was less in the prednisone group than in the patients who received placebo.

With respect to treatment effect, the difference between prednisone and placebo gradually lessened over time “in parallel to the verapamil dose reaching its therapeutic effect,” the investigators noted. “Therefore, attack frequency reduction slowly converged between groups,” they added.

The study results provide “clear evidence” and should reassure clinicians that short-term prednisone early in a cluster headache attack is effective, said Dr. Obermann.

Adverse events, which included headache, palpitations, dizziness, and nausea, were as expected and were similar in the two groups. There were only two severe adverse events, both of which occurred in participants in the placebo group.

Dr. Obermann said the investigators were surprised that so many patients in the study were taking analgesics. “Analgesics don’t work in cluster headache; they just don’t work in this kind of pain.”

He noted that prednisone exposure of study patients spanned only 19 days and amounted to only 1,100 mg, which he believes is safe.

The prednisone dose used in the study is “what most clinicians use in clinical practice,” although there have been reports of success using 500 mg of IV prednisone over 5 days, said Dr. Obermann. He added that it would be “interesting to see if 50 mg would be just as good” as a starting dose.

Potential limitations of the study include the fact that the majority of participants were White, so the findings may not be generalizable to other populations.
 

Long-awaited results

In an accompanying editorial, Anne Ducros, MD, PhD, professor of neurology and director of the Headache Center, Montpellier (France) University Hospital, said the study provides “strong and long-awaited evidence supporting the use of oral steroids as a transitional treatment option.”

The trial “raises many topics for future research,” one of which is the long-term safety of prednisone for patients with cluster headache, said Dr. Ducros. She noted that use of high-dose steroids once or twice a year for 15 years or more “has the potential for severe systemic toxic effects,” such as corticosteroid-induced osteonecrosis of the femoral head.

Other questions about corticosteroid use for patients with cluster headache remain. These include understanding whether these agents provide better efficacy than occipital nerve injections and determining the optimal verapamil regimen, she noted.

In addition, the risk for oral steroid misuse needs to be studied, she said. She noted that drug misuse is common among patients with cluster headache.

Despite these questions, the results of this new study “provide an important step forward for patients with cluster headache, for whom safe and effective transitional therapies are much needed,” Dr. Ducros wrote.


Dr. Obermann has received fees from Sanofi, Biogen, Novartis, Teva Pharmaceuticals, and Eli Lilly and grants from Allergan and Heel Pharmaceuticals outside of this work. Dr. Ducros has received fees from Amgen, Novartis, Teva, and Eli Lilly; grants from the Programme Hospitalier de Recherche Clinique and from the Appel d’Offre Interne of Montpellier University Hospital; and nonfinancial support from SOS Oxygene.

A version of this article originally appeared on Medscape.com.

Adjunctive oral prednisone appears to significantly reduce cluster headache attacks, new research shows. Results of the multicenter, randomized, double-blind trial show that patients who received the steroid had 25% fewer attacks in the first week of therapy, compared with their counterparts who received placebo.

In addition, more than a third of patients in the prednisone group were pain free, and for almost half, headache frequency was reduced by at least 50% at day 7 of treatment.

These findings provide clear evidence that prednisone, in conjunction with the use of verapamil, is effective in cluster headache, said lead author Mark Obermann, MD, director, Center for Neurology, Asklepios Hospitals Seesen (Germany), and associate professor, University of Duisburg-Essen (Germany).

The key message, he added, is that all patients with cluster headache should receive prednisone at the start of an episode.

The study was published online Nov. 24 in the Lancet Neurology.
 

‘Suicide headaches’

Cluster headaches are intense unilateral attacks of facial and head pain. They last 15-180 minutes and predominantly affect men. They are accompanied by trigeminal autonomic symptoms and are extremely painful. “They’re referred to as ‘suicide headaches’ because the pain is so severe that patients often report they think about killing themselves to get rid of the pain,” said Dr. Obermann.

The cause is unclear, although there is some evidence that the hypothalamus is involved. The headaches sometimes follow a “strict circadian pattern,” said Dr. Obermann. He noted that the attacks might occur over a few weeks or months and then not return for months or even years.

An estimated 1 in 1,000 people experience cluster headache, but the condition is underrecognized, and research is scarce and poorly funded. Previous research does show that the calcium channel blocker verapamil, which is used to treat high blood pressure, is effective in cluster headache. However, it takes about 14 days to work and has to be slowly titrated because of cardiac side effects, said Dr. Obermann. For these reasons, international guidelines recommend initiating short-term preventive treatment with corticosteroids to suppress, or at least lessen, cluster headache attacks until long-term prevention is effective.

Although some clinicians treat cluster headaches with corticosteroids, others don’t because of a lack of evidence that shows they are effective. “There’s no evidence whatsoever on what the correct dose is or whether it helps at all. This is the gap we wanted to close,” said Dr. Obermann.

The study included 116 adult patients with cluster headache from 10 centers who were experiencing a cluster headache episode and were not taking prophylactic medication.

The trial only included patients who had an attack within 30 days of their current episode. The investigators included this restriction to reduce the possibility of spontaneous remission, which is “a big problem” in cluster headache trials, he said. To confirm that episodes were cluster headache attacks, patients were also required to have moderate to severe pain, indicated by a score of at least 5 on a numerical rating scale in which 0 indicates no pain and 10 indicates the worse imaginable pain.

Participants were allowed to use treatments for acute attack, but these therapies were limited to triptans, high-flow oxygen, intranasal lidocaine, ergotamine, and oral analgesics.
 

Debilitating pain

Patients were randomly assigned to receive oral prednisone (n = 53) or placebo (n = 56). The study groups were matched with respect to demographic and clinical characteristics. Prednisone was initiated at 100 mg/d for 5 days and was then tapered by 20 mg every 3 days in the active-treatment group. All patients also received oral verapamil at a starting dose of 40 mg three times per day. The dose was increased every 3 days by 40 mg to a maximum of 360 mg/d.

All participants received pantoprazole 20 mg to prevent the gastric side effects of prednisone. An attack was defined as a unilateral headache of moderate to severe intensity. The study lasted 28 days.

The study’s primary outcome was the mean number of cluster headache attacks during the first week of treatment with prednisone versus placebo.

The mean number of attacks during the first week of treatment was 7.1 in the prednisone group and 9.5 in the placebo group, for a difference of –2.4 attacks (95% confidence interval, –4.8 to –0.03; P = .002). “This might not sound like much,” but reducing the number of daily attacks from, say, eight to six “really makes a difference because the attacks are so painful,” said Dr. Obermann.

The prednisone group also came out on top for a number secondary outcomes. After the first 7 days, attacks ceased in 35% of the prednisone group versus 7% in the placebo group.
 

‘Clear evidence’ of efficacy

About 49% of patients who took prednisone reported a reduction of at least 50% in attack frequency at day 7. By comparison, 15% of patients who received placebo reported such a reduction. The number of cluster attacks at day 28 was less in the prednisone group than in the patients who received placebo.

With respect to treatment effect, the difference between prednisone and placebo gradually lessened over time “in parallel to the verapamil dose reaching its therapeutic effect,” the investigators noted. “Therefore, attack frequency reduction slowly converged between groups,” they added.

The study results provide “clear evidence” and should reassure clinicians that short-term prednisone early in a cluster headache attack is effective, said Dr. Obermann.

Adverse events, which included headache, palpitations, dizziness, and nausea, were as expected and were similar in the two groups. There were only two severe adverse events, both of which occurred in participants in the placebo group.

Dr. Obermann said the investigators were surprised that so many patients in the study were taking analgesics. “Analgesics don’t work in cluster headache; they just don’t work in this kind of pain.”

He noted that prednisone exposure of study patients spanned only 19 days and amounted to only 1,100 mg, which he believes is safe.

The prednisone dose used in the study is “what most clinicians use in clinical practice,” although there have been reports of success using 500 mg of IV prednisone over 5 days, said Dr. Obermann. He added that it would be “interesting to see if 50 mg would be just as good” as a starting dose.

Potential limitations of the study include the fact that the majority of participants were White, so the findings may not be generalizable to other populations.
 

Long-awaited results

In an accompanying editorial, Anne Ducros, MD, PhD, professor of neurology and director of the Headache Center, Montpellier (France) University Hospital, said the study provides “strong and long-awaited evidence supporting the use of oral steroids as a transitional treatment option.”

The trial “raises many topics for future research,” one of which is the long-term safety of prednisone for patients with cluster headache, said Dr. Ducros. She noted that use of high-dose steroids once or twice a year for 15 years or more “has the potential for severe systemic toxic effects,” such as corticosteroid-induced osteonecrosis of the femoral head.

Other questions about corticosteroid use for patients with cluster headache remain. These include understanding whether these agents provide better efficacy than occipital nerve injections and determining the optimal verapamil regimen, she noted.

In addition, the risk for oral steroid misuse needs to be studied, she said. She noted that drug misuse is common among patients with cluster headache.

Despite these questions, the results of this new study “provide an important step forward for patients with cluster headache, for whom safe and effective transitional therapies are much needed,” Dr. Ducros wrote.


Dr. Obermann has received fees from Sanofi, Biogen, Novartis, Teva Pharmaceuticals, and Eli Lilly and grants from Allergan and Heel Pharmaceuticals outside of this work. Dr. Ducros has received fees from Amgen, Novartis, Teva, and Eli Lilly; grants from the Programme Hospitalier de Recherche Clinique and from the Appel d’Offre Interne of Montpellier University Hospital; and nonfinancial support from SOS Oxygene.

A version of this article originally appeared on Medscape.com.

Medication overuse headache presents difficult challenges for both patients and physicians. Physicians worry about episodic migraine converting to chronic daily headache, but this worry can also lead to under-treatment and even stigmatization of patients who aggressively treat their symptoms.

These concerns and others were a topic of a debate at the Headache Cooperative of New England’s 20th Annual HCNE Boston Fall Headache Symposium, which was conducted virtually.

The International Classification of Headache-3 (ICHD-3) defines medication overuse headache as a headache that occurs on 15 or more days per month in a patient with pre-existing primary headache, and that develops because of regular overuse of acute or symptomatic headache medication. The ICHD-3 also says that headache usually resolves when overuse is stopped, though not always.

Paul Rizzoli, MD, took issue with that definition. “If you have a lot of headaches and you take medication for them, then you likely have medication overuse headache. They say the most common cause of symptoms suggestive of chronic migraine is medication overuse. That’s like saying, if you have a rash on your arm, then it is an allergic sun exposure rash. No need to characterize the rash,” said Dr. Rizzoli, who is clinical director of the John R. Graham Headache Center at Brigham and Women’s Faulkner Hospital in Boston, during the session.
 

Is medication overuse really the culprit?

Dr. Rizzoli began by emphasizing that taking a lot of medication is always a concern. “Significant hepatic and renal and GI toxicities can result from taking and overusing medication of all sorts. What (I am) questioning is whether or not this rather strange, arbitrary, fluidly-defined concept of abortive migraine medicine overuse is truly responsible for causing all of the ills of which it is accused – and just as importantly, if the proposed solution for it, which is to just stop the overused medication and all will be better – if that solution is the right or wrong advice to give to a patient,” he said.

Much of Dr. Rizzoli’s criticism rested on the definition of medication overuse syndrome. He believes that many concerns about medication overuse can be traced to the use of opiates or barbiturate-containing medications, which have known propensities to lead to headaches. Other cases are less well defined, and “it’s not quite clear what the pathophysiology of the condition is – whether or not it’s the same as rebound or withdrawal headache, or if it is the same as a pronociceptive effect of analgesics, also called medicine-induced headache. Both are well documented and accepted, and the idea of opioid-induced analgesia tolerance is well documented and has several plausible mechanisms attributed to it,” said Dr. Rizzoli.

He said that changes in structural imaging in the brain suggest there at least two subgroups of patients that are both labeled as having medication overuse headache, one from medication overuse and one from progression of migraine disease. “Based on physiology, medication overuse headache cannot be clearly seen as a unitary condition,” he said.

Dr. Rizzoli cited other research on triptans, opioids, and barbiturates that showed an overall conversion from episodic migraine to chronic migraine, with the lowest frequency occurring in patients taking acetaminophen, aspirin, and caffeine (2%), followed by NSAIDs (4%), triptans (4%), opioids (5%), and barbiturates (6%). A total of 52 patients who became chronic were taking triptans, on average 7 days per month. The 1,370 triptan-using patients who remained episodic took triptans on average 5 days per month. “Does this seem like a huge difference between these two groups? The transformation rate in just this triptan subgroup was about 3%-4%, suggesting that, compared with the overall transformation rate of 3%, use of triptans did not exert much force overall on the baseline rate,” he said. Similar patterns were visible with use of other classes of drugs.

Meanwhile, the higher rates of conversion seen with opioids and barbiturates suggests an effect from these drugs. “Perhaps this data suggests the previously known effect is at play here and argues against the need for a separate diagnosis of medication overuse headache,” Dr. Rizzoli said.

“The evidence that simple analgesics can cause medication overuse headache is especially weak, and the evidence that NSAIDs do is conflicting, with some evidence suggesting they’re protective at some doses.” Other population studies suggested most patients with daily headache do not overuse medications, and studies in India, where analgesics are rarely used, still showed a similar rate of conversion to daily headache. Other studies failed to show evidence that withdrawal of overused medication leads to improvement. “Studies of populations after aggressive management of medicine overuse headache indicate that, for the majority of the headaches, for the most part did not clear after treatment, except maybe for a short time,” said Dr. Rizzoli.

A systematic review of 18 population studies showed the prevalence of medical overuse headache ranged from 11% to 68%. “That indicates substantial uncertainty about the magnitude of the problem,” said Dr. Rizzoli.

He also noted potential harms to patients. Many patients come in experience between 10 and 20 headaches per month. “To see them out of medical overuse would have us advising not to treat half of their headaches monthly in order to avoid this evil. Many patients who have read or heard about this condition are themselves restricting treatment so as to avoid medication overuse headache. The harms of such undertreatment have not been fully investigated.”

To get at the issue, he recommended adapting the traditional number-needed-to-treat calculation. “You could calculate a number needed to overtreat. If medication use is assumed to be the sole cause of headache chronification, the calculations could suggest you would need to restrict therapy for about 4 people for each person you protect from going chronic. That’s a lot of undertreatment,” said Dr. Rizzoli.

He summed up by saying that some patients may have a progressive disorder with structure and physiological changes in the brain that result in chronic pain, and such patients should be identified and studied. In others with frequent headache, high medication use may simply be associated with the condition becoming chronic, but not causative. “These diagnostic groups may be mixed and may be difficult to untangle,” said Dr. Rizzoli.
 

Medication overuse is to blame

Dr. Rizzoli’s debate lecture was followed by Barbara Nye, MD, who argued that concerns over medication overuse headache are valid. She noted a more unifying definition in ICHD-3, which requires regular medication overuse for at least 3 months, along with primary headache disorder.

Dr. Nye, who is codirector of the Headache Clinic at Dartmouth-Hitchcock Medical Center in Lebanon, N.H., related her experience that medication overuse headache often occurs more quickly than the 3-month time frame contained in ICHD-3, especially in patients who were given pain medications after undergoing surgery. She echoed Dr. Rizzoli’s concerns about opiates and barbiturates. “Medicine overuse headache should be something we focus on, and we should be warning providers both in neurology and primary care about the frequent use of opiate and butalbital-containing medications, and frequent over-the-counter medicine use in high-frequency headache disorders,” Dr. Nye said during her talk.

She cited research showing risk factors for conversion from episodic to chronic daily headache. As well as medication overuse, these include White race, lower education status, previous marriage, obesity, diabetes, arthritis, top-quartile caffeine use, stressful life events, and higher headache frequency.

Risks vary by medication class. Opiates and narcotics used more than 2 or 3 times per week are of particular concern, as are short-acting over-the-counter medicines used more than three times per week or 10-15 days per month. She agreed that NSAIDs may have a protective effect, but only at much lower doses and when used about five (or fewer) times per month. One study showed a possible protection effect of NSAIDs, though when used more than 10 days/month, they were associated with medication overuse headache.

Fioricet and Fiorinal, used more than 1 day/week, have an early and robust medicine overuse effect. “Limiting that use is very important,” said Dr. Nye. Other medicines and doses of concern include Tramadol/Ultram used at a higher than 50 mg/day dose, which has a metabolite that causes headache, and triptans used more than 10 days/month.

These concerns came about after analysis of large trials in patients with other conditions who also suffer from episodic migraines. A study of patients with irritable bowel syndrome and migraine showed a risk of conversion with opioid treatment. Another study of patients with arthritis and episodic migraine showed an association between conversion and NSAIDs alone, NSAIDs combined with Tylenol, and NSAIDs combined with opioids.

Risks of medication overuse also included collateral damage to the gastrointestinal and kidney systems, development of dependence, exacerbation of depression, and opioid-induced hyperalgesia, according to Dr. Nye. The overused medication may also interfere with the use of preventive medication. Those concerns drive the conventional wisdom of weaning patients off the overused medication, Dr. Nye said.

Dr. Nye discussed some of the observations of structural changes in the brain found in episodic migraine and chronic migraine associated with medication overuse. Functional MRI showed changes in grey matter, both as a result of medication overuse headache and further changes after medication withdrawal. “A lot of neuroplasticity and neuroadaptation occurs, and these effects seem to be sustained anywhere from 4-6 months after (medicine) discontinuation,” said Dr. Nye.
 

Common ground

Dr. Nye emphasized the need to be aware of the dangers of medication overuse headache, but noted that clinicians should address the problem to ensure that patients are empowered, potentially providing preventive medications and encouraging more effective use of daily abortive medications.

In response, Dr. Rizzoli suggested that the two agreed on many issues. For her part, Dr. Nye agreed that medication overuse headache is a muddy concept that needs more research to understand the relationship between opiate use and chronic migraine, “but I do think there have been some good studies of fMRI evaluating the difference between those with medication overuse headache and seeing how they convert back to a different underlying network (following medication withdrawal). I do agree that there is probably a subpopulation that is not affected by medication overuse headache,” Dr. Nye said.

In the end, both expressed concerns for the patient. “I share Barbara’s concern that we need to be mindful and protect our patients from medication use, but on the other hand I think we also need to protect our patients from the complications of having a diagnosis of medical overuse and the stigmatization that goes with that. That particular issue goes both ways,” said Dr. Rizzoli.

“I absolutely agree with that,” responded Dr. Nye.

Dr. Nye is on the advisory boards for Biohaven, Upsher Smith, and Impel. She is a trial site principal investigator for Allergan, Amgen, and Satsuma. Dr. Rizzoli has been a consultant for Nestle and served on the scientific advisory or data safety monitoring board for Biohaven and Xoc Pharma. He has also received research support from Allergan.

Medication overuse headache presents difficult challenges for both patients and physicians. Physicians worry about episodic migraine converting to chronic daily headache, but this worry can also lead to under-treatment and even stigmatization of patients who aggressively treat their symptoms.

These concerns and others were a topic of a debate at the Headache Cooperative of New England’s 20th Annual HCNE Boston Fall Headache Symposium, which was conducted virtually.

The International Classification of Headache-3 (ICHD-3) defines medication overuse headache as a headache that occurs on 15 or more days per month in a patient with pre-existing primary headache, and that develops because of regular overuse of acute or symptomatic headache medication. The ICHD-3 also says that headache usually resolves when overuse is stopped, though not always.

Paul Rizzoli, MD, took issue with that definition. “If you have a lot of headaches and you take medication for them, then you likely have medication overuse headache. They say the most common cause of symptoms suggestive of chronic migraine is medication overuse. That’s like saying, if you have a rash on your arm, then it is an allergic sun exposure rash. No need to characterize the rash,” said Dr. Rizzoli, who is clinical director of the John R. Graham Headache Center at Brigham and Women’s Faulkner Hospital in Boston, during the session.
 

Is medication overuse really the culprit?

Dr. Rizzoli began by emphasizing that taking a lot of medication is always a concern. “Significant hepatic and renal and GI toxicities can result from taking and overusing medication of all sorts. What (I am) questioning is whether or not this rather strange, arbitrary, fluidly-defined concept of abortive migraine medicine overuse is truly responsible for causing all of the ills of which it is accused – and just as importantly, if the proposed solution for it, which is to just stop the overused medication and all will be better – if that solution is the right or wrong advice to give to a patient,” he said.

Much of Dr. Rizzoli’s criticism rested on the definition of medication overuse syndrome. He believes that many concerns about medication overuse can be traced to the use of opiates or barbiturate-containing medications, which have known propensities to lead to headaches. Other cases are less well defined, and “it’s not quite clear what the pathophysiology of the condition is – whether or not it’s the same as rebound or withdrawal headache, or if it is the same as a pronociceptive effect of analgesics, also called medicine-induced headache. Both are well documented and accepted, and the idea of opioid-induced analgesia tolerance is well documented and has several plausible mechanisms attributed to it,” said Dr. Rizzoli.

He said that changes in structural imaging in the brain suggest there at least two subgroups of patients that are both labeled as having medication overuse headache, one from medication overuse and one from progression of migraine disease. “Based on physiology, medication overuse headache cannot be clearly seen as a unitary condition,” he said.

Dr. Rizzoli cited other research on triptans, opioids, and barbiturates that showed an overall conversion from episodic migraine to chronic migraine, with the lowest frequency occurring in patients taking acetaminophen, aspirin, and caffeine (2%), followed by NSAIDs (4%), triptans (4%), opioids (5%), and barbiturates (6%). A total of 52 patients who became chronic were taking triptans, on average 7 days per month. The 1,370 triptan-using patients who remained episodic took triptans on average 5 days per month. “Does this seem like a huge difference between these two groups? The transformation rate in just this triptan subgroup was about 3%-4%, suggesting that, compared with the overall transformation rate of 3%, use of triptans did not exert much force overall on the baseline rate,” he said. Similar patterns were visible with use of other classes of drugs.

Meanwhile, the higher rates of conversion seen with opioids and barbiturates suggests an effect from these drugs. “Perhaps this data suggests the previously known effect is at play here and argues against the need for a separate diagnosis of medication overuse headache,” Dr. Rizzoli said.

“The evidence that simple analgesics can cause medication overuse headache is especially weak, and the evidence that NSAIDs do is conflicting, with some evidence suggesting they’re protective at some doses.” Other population studies suggested most patients with daily headache do not overuse medications, and studies in India, where analgesics are rarely used, still showed a similar rate of conversion to daily headache. Other studies failed to show evidence that withdrawal of overused medication leads to improvement. “Studies of populations after aggressive management of medicine overuse headache indicate that, for the majority of the headaches, for the most part did not clear after treatment, except maybe for a short time,” said Dr. Rizzoli.

A systematic review of 18 population studies showed the prevalence of medical overuse headache ranged from 11% to 68%. “That indicates substantial uncertainty about the magnitude of the problem,” said Dr. Rizzoli.

He also noted potential harms to patients. Many patients come in experience between 10 and 20 headaches per month. “To see them out of medical overuse would have us advising not to treat half of their headaches monthly in order to avoid this evil. Many patients who have read or heard about this condition are themselves restricting treatment so as to avoid medication overuse headache. The harms of such undertreatment have not been fully investigated.”

To get at the issue, he recommended adapting the traditional number-needed-to-treat calculation. “You could calculate a number needed to overtreat. If medication use is assumed to be the sole cause of headache chronification, the calculations could suggest you would need to restrict therapy for about 4 people for each person you protect from going chronic. That’s a lot of undertreatment,” said Dr. Rizzoli.

He summed up by saying that some patients may have a progressive disorder with structure and physiological changes in the brain that result in chronic pain, and such patients should be identified and studied. In others with frequent headache, high medication use may simply be associated with the condition becoming chronic, but not causative. “These diagnostic groups may be mixed and may be difficult to untangle,” said Dr. Rizzoli.
 

Medication overuse is to blame

Dr. Rizzoli’s debate lecture was followed by Barbara Nye, MD, who argued that concerns over medication overuse headache are valid. She noted a more unifying definition in ICHD-3, which requires regular medication overuse for at least 3 months, along with primary headache disorder.

Dr. Nye, who is codirector of the Headache Clinic at Dartmouth-Hitchcock Medical Center in Lebanon, N.H., related her experience that medication overuse headache often occurs more quickly than the 3-month time frame contained in ICHD-3, especially in patients who were given pain medications after undergoing surgery. She echoed Dr. Rizzoli’s concerns about opiates and barbiturates. “Medicine overuse headache should be something we focus on, and we should be warning providers both in neurology and primary care about the frequent use of opiate and butalbital-containing medications, and frequent over-the-counter medicine use in high-frequency headache disorders,” Dr. Nye said during her talk.

She cited research showing risk factors for conversion from episodic to chronic daily headache. As well as medication overuse, these include White race, lower education status, previous marriage, obesity, diabetes, arthritis, top-quartile caffeine use, stressful life events, and higher headache frequency.

Risks vary by medication class. Opiates and narcotics used more than 2 or 3 times per week are of particular concern, as are short-acting over-the-counter medicines used more than three times per week or 10-15 days per month. She agreed that NSAIDs may have a protective effect, but only at much lower doses and when used about five (or fewer) times per month. One study showed a possible protection effect of NSAIDs, though when used more than 10 days/month, they were associated with medication overuse headache.

Fioricet and Fiorinal, used more than 1 day/week, have an early and robust medicine overuse effect. “Limiting that use is very important,” said Dr. Nye. Other medicines and doses of concern include Tramadol/Ultram used at a higher than 50 mg/day dose, which has a metabolite that causes headache, and triptans used more than 10 days/month.

These concerns came about after analysis of large trials in patients with other conditions who also suffer from episodic migraines. A study of patients with irritable bowel syndrome and migraine showed a risk of conversion with opioid treatment. Another study of patients with arthritis and episodic migraine showed an association between conversion and NSAIDs alone, NSAIDs combined with Tylenol, and NSAIDs combined with opioids.

Risks of medication overuse also included collateral damage to the gastrointestinal and kidney systems, development of dependence, exacerbation of depression, and opioid-induced hyperalgesia, according to Dr. Nye. The overused medication may also interfere with the use of preventive medication. Those concerns drive the conventional wisdom of weaning patients off the overused medication, Dr. Nye said.

Dr. Nye discussed some of the observations of structural changes in the brain found in episodic migraine and chronic migraine associated with medication overuse. Functional MRI showed changes in grey matter, both as a result of medication overuse headache and further changes after medication withdrawal. “A lot of neuroplasticity and neuroadaptation occurs, and these effects seem to be sustained anywhere from 4-6 months after (medicine) discontinuation,” said Dr. Nye.
 

Common ground

Dr. Nye emphasized the need to be aware of the dangers of medication overuse headache, but noted that clinicians should address the problem to ensure that patients are empowered, potentially providing preventive medications and encouraging more effective use of daily abortive medications.

In response, Dr. Rizzoli suggested that the two agreed on many issues. For her part, Dr. Nye agreed that medication overuse headache is a muddy concept that needs more research to understand the relationship between opiate use and chronic migraine, “but I do think there have been some good studies of fMRI evaluating the difference between those with medication overuse headache and seeing how they convert back to a different underlying network (following medication withdrawal). I do agree that there is probably a subpopulation that is not affected by medication overuse headache,” Dr. Nye said.

In the end, both expressed concerns for the patient. “I share Barbara’s concern that we need to be mindful and protect our patients from medication use, but on the other hand I think we also need to protect our patients from the complications of having a diagnosis of medical overuse and the stigmatization that goes with that. That particular issue goes both ways,” said Dr. Rizzoli.

“I absolutely agree with that,” responded Dr. Nye.

Dr. Nye is on the advisory boards for Biohaven, Upsher Smith, and Impel. She is a trial site principal investigator for Allergan, Amgen, and Satsuma. Dr. Rizzoli has been a consultant for Nestle and served on the scientific advisory or data safety monitoring board for Biohaven and Xoc Pharma. He has also received research support from Allergan.

Medication overuse headache presents difficult challenges for both patients and physicians. Physicians worry about episodic migraine converting to chronic daily headache, but this worry can also lead to under-treatment and even stigmatization of patients who aggressively treat their symptoms.

These concerns and others were a topic of a debate at the Headache Cooperative of New England’s 20th Annual HCNE Boston Fall Headache Symposium, which was conducted virtually.

The International Classification of Headache-3 (ICHD-3) defines medication overuse headache as a headache that occurs on 15 or more days per month in a patient with pre-existing primary headache, and that develops because of regular overuse of acute or symptomatic headache medication. The ICHD-3 also says that headache usually resolves when overuse is stopped, though not always.

Paul Rizzoli, MD, took issue with that definition. “If you have a lot of headaches and you take medication for them, then you likely have medication overuse headache. They say the most common cause of symptoms suggestive of chronic migraine is medication overuse. That’s like saying, if you have a rash on your arm, then it is an allergic sun exposure rash. No need to characterize the rash,” said Dr. Rizzoli, who is clinical director of the John R. Graham Headache Center at Brigham and Women’s Faulkner Hospital in Boston, during the session.
 

Is medication overuse really the culprit?

Dr. Rizzoli began by emphasizing that taking a lot of medication is always a concern. “Significant hepatic and renal and GI toxicities can result from taking and overusing medication of all sorts. What (I am) questioning is whether or not this rather strange, arbitrary, fluidly-defined concept of abortive migraine medicine overuse is truly responsible for causing all of the ills of which it is accused – and just as importantly, if the proposed solution for it, which is to just stop the overused medication and all will be better – if that solution is the right or wrong advice to give to a patient,” he said.

Much of Dr. Rizzoli’s criticism rested on the definition of medication overuse syndrome. He believes that many concerns about medication overuse can be traced to the use of opiates or barbiturate-containing medications, which have known propensities to lead to headaches. Other cases are less well defined, and “it’s not quite clear what the pathophysiology of the condition is – whether or not it’s the same as rebound or withdrawal headache, or if it is the same as a pronociceptive effect of analgesics, also called medicine-induced headache. Both are well documented and accepted, and the idea of opioid-induced analgesia tolerance is well documented and has several plausible mechanisms attributed to it,” said Dr. Rizzoli.

He said that changes in structural imaging in the brain suggest there at least two subgroups of patients that are both labeled as having medication overuse headache, one from medication overuse and one from progression of migraine disease. “Based on physiology, medication overuse headache cannot be clearly seen as a unitary condition,” he said.

Dr. Rizzoli cited other research on triptans, opioids, and barbiturates that showed an overall conversion from episodic migraine to chronic migraine, with the lowest frequency occurring in patients taking acetaminophen, aspirin, and caffeine (2%), followed by NSAIDs (4%), triptans (4%), opioids (5%), and barbiturates (6%). A total of 52 patients who became chronic were taking triptans, on average 7 days per month. The 1,370 triptan-using patients who remained episodic took triptans on average 5 days per month. “Does this seem like a huge difference between these two groups? The transformation rate in just this triptan subgroup was about 3%-4%, suggesting that, compared with the overall transformation rate of 3%, use of triptans did not exert much force overall on the baseline rate,” he said. Similar patterns were visible with use of other classes of drugs.

Meanwhile, the higher rates of conversion seen with opioids and barbiturates suggests an effect from these drugs. “Perhaps this data suggests the previously known effect is at play here and argues against the need for a separate diagnosis of medication overuse headache,” Dr. Rizzoli said.

“The evidence that simple analgesics can cause medication overuse headache is especially weak, and the evidence that NSAIDs do is conflicting, with some evidence suggesting they’re protective at some doses.” Other population studies suggested most patients with daily headache do not overuse medications, and studies in India, where analgesics are rarely used, still showed a similar rate of conversion to daily headache. Other studies failed to show evidence that withdrawal of overused medication leads to improvement. “Studies of populations after aggressive management of medicine overuse headache indicate that, for the majority of the headaches, for the most part did not clear after treatment, except maybe for a short time,” said Dr. Rizzoli.

A systematic review of 18 population studies showed the prevalence of medical overuse headache ranged from 11% to 68%. “That indicates substantial uncertainty about the magnitude of the problem,” said Dr. Rizzoli.

He also noted potential harms to patients. Many patients come in experience between 10 and 20 headaches per month. “To see them out of medical overuse would have us advising not to treat half of their headaches monthly in order to avoid this evil. Many patients who have read or heard about this condition are themselves restricting treatment so as to avoid medication overuse headache. The harms of such undertreatment have not been fully investigated.”

To get at the issue, he recommended adapting the traditional number-needed-to-treat calculation. “You could calculate a number needed to overtreat. If medication use is assumed to be the sole cause of headache chronification, the calculations could suggest you would need to restrict therapy for about 4 people for each person you protect from going chronic. That’s a lot of undertreatment,” said Dr. Rizzoli.

He summed up by saying that some patients may have a progressive disorder with structure and physiological changes in the brain that result in chronic pain, and such patients should be identified and studied. In others with frequent headache, high medication use may simply be associated with the condition becoming chronic, but not causative. “These diagnostic groups may be mixed and may be difficult to untangle,” said Dr. Rizzoli.
 

Medication overuse is to blame

Dr. Rizzoli’s debate lecture was followed by Barbara Nye, MD, who argued that concerns over medication overuse headache are valid. She noted a more unifying definition in ICHD-3, which requires regular medication overuse for at least 3 months, along with primary headache disorder.

Dr. Nye, who is codirector of the Headache Clinic at Dartmouth-Hitchcock Medical Center in Lebanon, N.H., related her experience that medication overuse headache often occurs more quickly than the 3-month time frame contained in ICHD-3, especially in patients who were given pain medications after undergoing surgery. She echoed Dr. Rizzoli’s concerns about opiates and barbiturates. “Medicine overuse headache should be something we focus on, and we should be warning providers both in neurology and primary care about the frequent use of opiate and butalbital-containing medications, and frequent over-the-counter medicine use in high-frequency headache disorders,” Dr. Nye said during her talk.

She cited research showing risk factors for conversion from episodic to chronic daily headache. As well as medication overuse, these include White race, lower education status, previous marriage, obesity, diabetes, arthritis, top-quartile caffeine use, stressful life events, and higher headache frequency.

Risks vary by medication class. Opiates and narcotics used more than 2 or 3 times per week are of particular concern, as are short-acting over-the-counter medicines used more than three times per week or 10-15 days per month. She agreed that NSAIDs may have a protective effect, but only at much lower doses and when used about five (or fewer) times per month. One study showed a possible protection effect of NSAIDs, though when used more than 10 days/month, they were associated with medication overuse headache.

Fioricet and Fiorinal, used more than 1 day/week, have an early and robust medicine overuse effect. “Limiting that use is very important,” said Dr. Nye. Other medicines and doses of concern include Tramadol/Ultram used at a higher than 50 mg/day dose, which has a metabolite that causes headache, and triptans used more than 10 days/month.

These concerns came about after analysis of large trials in patients with other conditions who also suffer from episodic migraines. A study of patients with irritable bowel syndrome and migraine showed a risk of conversion with opioid treatment. Another study of patients with arthritis and episodic migraine showed an association between conversion and NSAIDs alone, NSAIDs combined with Tylenol, and NSAIDs combined with opioids.

Risks of medication overuse also included collateral damage to the gastrointestinal and kidney systems, development of dependence, exacerbation of depression, and opioid-induced hyperalgesia, according to Dr. Nye. The overused medication may also interfere with the use of preventive medication. Those concerns drive the conventional wisdom of weaning patients off the overused medication, Dr. Nye said.

Dr. Nye discussed some of the observations of structural changes in the brain found in episodic migraine and chronic migraine associated with medication overuse. Functional MRI showed changes in grey matter, both as a result of medication overuse headache and further changes after medication withdrawal. “A lot of neuroplasticity and neuroadaptation occurs, and these effects seem to be sustained anywhere from 4-6 months after (medicine) discontinuation,” said Dr. Nye.
 

Common ground

Dr. Nye emphasized the need to be aware of the dangers of medication overuse headache, but noted that clinicians should address the problem to ensure that patients are empowered, potentially providing preventive medications and encouraging more effective use of daily abortive medications.

In response, Dr. Rizzoli suggested that the two agreed on many issues. For her part, Dr. Nye agreed that medication overuse headache is a muddy concept that needs more research to understand the relationship between opiate use and chronic migraine, “but I do think there have been some good studies of fMRI evaluating the difference between those with medication overuse headache and seeing how they convert back to a different underlying network (following medication withdrawal). I do agree that there is probably a subpopulation that is not affected by medication overuse headache,” Dr. Nye said.

In the end, both expressed concerns for the patient. “I share Barbara’s concern that we need to be mindful and protect our patients from medication use, but on the other hand I think we also need to protect our patients from the complications of having a diagnosis of medical overuse and the stigmatization that goes with that. That particular issue goes both ways,” said Dr. Rizzoli.

“I absolutely agree with that,” responded Dr. Nye.

Dr. Nye is on the advisory boards for Biohaven, Upsher Smith, and Impel. She is a trial site principal investigator for Allergan, Amgen, and Satsuma. Dr. Rizzoli has been a consultant for Nestle and served on the scientific advisory or data safety monitoring board for Biohaven and Xoc Pharma. He has also received research support from Allergan.

Migraine aura sometimes accompanies or precedes migraine pain, but the phenomenon is difficult to treat and poorly understood. However, some evidence points to potential neurological mechanisms, and migraine aura is associated with cardiovascular disease risk.

“We now have an accumulating body of evidence that supports cortical spreading depression (CSD) as the underlying pathophysiological event of migraine aura,” Andrea Harriott, MD, PhD, said at the Stowe Headache Symposium sponsored by the Headache Cooperative of New England, which was conducted virtually. Dr. Harriott is assistant professor of neurology at Massachusetts General Hospital in Boston.

Somewhere between 20% and 40% of patients with migraine experience aura. It is most often visual, though it can also include sensory, aphasic, and motor symptoms. Visual aura usually begins as a flickering zigzag pattern in the central visual field that moves slowly toward the periphery and often leaves a scotoma. Typical duration is 15-30 minutes. Aura symptoms are more common in females.

Research in the 1940s conducted by the Brazilian researcher Aristides de Azevedo Pacheco Leão, PhD, then at Harvard Medical School, Boston, showed evidence of CSD in rabbits after electrical or mechanical stimulation. He observed a wave of vasodilation and increased blood flow over the cortex that spread over nearly the entire dorsolateral cortex within 3-6 minutes.

In the 1940s and 1950s, researchers sketched on paper the visual disturbance over 10 minutes, tracking the expanding spectrum across the visual field, from the center toward the periphery. The resulting scotoma advanced across the visual cortex at a rate very similar to that of the cortical spreading observed by Dr. Leão, “potentially linking this electrical event that was described with the aura event of migraine,” said Dr. Harriott. Those researchers hypothesized that the aura was produced by a strong excitation phase, followed by a wave of total inhibition.

More recent functional magnetic resonance imaging studies have also shown that CSD-like disturbances occur when patients experience migraine aura. In one study, researchers observed an initial increase and then a decrease in the blood oxygenation level dependent (BOLD) signal, which spread slowly across the visual cortex and correlated with the aura event. “This study was really important in confirming that a CSD-like phenomenon was likely the underlying perturbation that produced the visual aura of migraine,” said Dr. Harriott.

Despite the evidence that CSD causes migraine aura, its connection to migraine pain hasn’t been firmly established. But Dr. Harriott presented some evidence linking the two. Migraine aura is usually followed by pain, and aura precedes migraine attacks 78%-93% of the time. Cephalic allodynia occurs in migraine about 70% to 80% of the time, and migraine with aura is more often associated with severe cutaneous allodynia than is migraine without aura. Finally, migraine patients with comorbidities have more severe disability, and more frequent cutaneous allodynia and aura than does the general migraine population (40% vs. 29%).

All of that suggests that activation of trigeminal nociceptors is involved with migraine aura, according to Dr. Harriott. Preclinical studies have also suggested links between CSD and activation of trigeminal nociceptors, with both immunohistochemical and electrophysiological lines of evidence. “These data suggest that spreading depression actually activates trigeminal nociceptors that we know are involved in signal pain in the head and neck, and that we know are involved in cephalic allodynia as well,” Dr. Harriott said.

The evidence impressed Allan Purdy, MD, professor of medicine at Dalhousie University, Halifax, N.S., who was the discussant for the presentation. “It’s an excellent case that CSD is a remarkably good correlate for aura,” he said during the session.

Along with potential impacts on migraine pain, aura is also associated with cardiovascular risk. “This is really important to know about in our clinical population,” said Dr. Harriott.

Meta-analyses of case control and cohort studies have shown associations between migraine aura and vascular disorders such as ischemic stroke. One meta-analysis showed about a twofold increased risk associated with migraine compared with the nonmigraine population. This difference was driven by migraine with aura (relative risk [RR], 2.25; 95% confidence interval [CI], 1.53-3.33) rather than migraine without aura (RR, 1.24; 95% CI, 0.86-1.79). Migraine generally is associated with greater risk of myocardial infarction (adjusted hazard ratio, 1.33; 95% CI, 1.08-1.64), and that association may be stronger in the aura phenotype.

There doesn’t appear to be evidence that traditional risk factors for heart disease – such as hypertension, diabetes, or high cholesterol – play a role in the association between aura and heart disease. One possibility is that variables like platelet activation, hypercoagulable state, or genetic susceptibility could be responsible.

The risks associated with migraine aura should be noted, but with a caveat, according to Dr. Purdy. “Even though the relative risk is high, the absolute risk is still relatively low, and patients with migraine with aura, who smoke or are female and over 45, those are the cases where the worry comes in.”

Dr. Harriott and Dr. Purdy have nothing to disclose.

Migraine aura sometimes accompanies or precedes migraine pain, but the phenomenon is difficult to treat and poorly understood. However, some evidence points to potential neurological mechanisms, and migraine aura is associated with cardiovascular disease risk.

“We now have an accumulating body of evidence that supports cortical spreading depression (CSD) as the underlying pathophysiological event of migraine aura,” Andrea Harriott, MD, PhD, said at the Stowe Headache Symposium sponsored by the Headache Cooperative of New England, which was conducted virtually. Dr. Harriott is assistant professor of neurology at Massachusetts General Hospital in Boston.

Somewhere between 20% and 40% of patients with migraine experience aura. It is most often visual, though it can also include sensory, aphasic, and motor symptoms. Visual aura usually begins as a flickering zigzag pattern in the central visual field that moves slowly toward the periphery and often leaves a scotoma. Typical duration is 15-30 minutes. Aura symptoms are more common in females.

Research in the 1940s conducted by the Brazilian researcher Aristides de Azevedo Pacheco Leão, PhD, then at Harvard Medical School, Boston, showed evidence of CSD in rabbits after electrical or mechanical stimulation. He observed a wave of vasodilation and increased blood flow over the cortex that spread over nearly the entire dorsolateral cortex within 3-6 minutes.

In the 1940s and 1950s, researchers sketched on paper the visual disturbance over 10 minutes, tracking the expanding spectrum across the visual field, from the center toward the periphery. The resulting scotoma advanced across the visual cortex at a rate very similar to that of the cortical spreading observed by Dr. Leão, “potentially linking this electrical event that was described with the aura event of migraine,” said Dr. Harriott. Those researchers hypothesized that the aura was produced by a strong excitation phase, followed by a wave of total inhibition.

More recent functional magnetic resonance imaging studies have also shown that CSD-like disturbances occur when patients experience migraine aura. In one study, researchers observed an initial increase and then a decrease in the blood oxygenation level dependent (BOLD) signal, which spread slowly across the visual cortex and correlated with the aura event. “This study was really important in confirming that a CSD-like phenomenon was likely the underlying perturbation that produced the visual aura of migraine,” said Dr. Harriott.

Despite the evidence that CSD causes migraine aura, its connection to migraine pain hasn’t been firmly established. But Dr. Harriott presented some evidence linking the two. Migraine aura is usually followed by pain, and aura precedes migraine attacks 78%-93% of the time. Cephalic allodynia occurs in migraine about 70% to 80% of the time, and migraine with aura is more often associated with severe cutaneous allodynia than is migraine without aura. Finally, migraine patients with comorbidities have more severe disability, and more frequent cutaneous allodynia and aura than does the general migraine population (40% vs. 29%).

All of that suggests that activation of trigeminal nociceptors is involved with migraine aura, according to Dr. Harriott. Preclinical studies have also suggested links between CSD and activation of trigeminal nociceptors, with both immunohistochemical and electrophysiological lines of evidence. “These data suggest that spreading depression actually activates trigeminal nociceptors that we know are involved in signal pain in the head and neck, and that we know are involved in cephalic allodynia as well,” Dr. Harriott said.

The evidence impressed Allan Purdy, MD, professor of medicine at Dalhousie University, Halifax, N.S., who was the discussant for the presentation. “It’s an excellent case that CSD is a remarkably good correlate for aura,” he said during the session.

Along with potential impacts on migraine pain, aura is also associated with cardiovascular risk. “This is really important to know about in our clinical population,” said Dr. Harriott.

Meta-analyses of case control and cohort studies have shown associations between migraine aura and vascular disorders such as ischemic stroke. One meta-analysis showed about a twofold increased risk associated with migraine compared with the nonmigraine population. This difference was driven by migraine with aura (relative risk [RR], 2.25; 95% confidence interval [CI], 1.53-3.33) rather than migraine without aura (RR, 1.24; 95% CI, 0.86-1.79). Migraine generally is associated with greater risk of myocardial infarction (adjusted hazard ratio, 1.33; 95% CI, 1.08-1.64), and that association may be stronger in the aura phenotype.

There doesn’t appear to be evidence that traditional risk factors for heart disease – such as hypertension, diabetes, or high cholesterol – play a role in the association between aura and heart disease. One possibility is that variables like platelet activation, hypercoagulable state, or genetic susceptibility could be responsible.

The risks associated with migraine aura should be noted, but with a caveat, according to Dr. Purdy. “Even though the relative risk is high, the absolute risk is still relatively low, and patients with migraine with aura, who smoke or are female and over 45, those are the cases where the worry comes in.”

Dr. Harriott and Dr. Purdy have nothing to disclose.

Migraine aura sometimes accompanies or precedes migraine pain, but the phenomenon is difficult to treat and poorly understood. However, some evidence points to potential neurological mechanisms, and migraine aura is associated with cardiovascular disease risk.

“We now have an accumulating body of evidence that supports cortical spreading depression (CSD) as the underlying pathophysiological event of migraine aura,” Andrea Harriott, MD, PhD, said at the Stowe Headache Symposium sponsored by the Headache Cooperative of New England, which was conducted virtually. Dr. Harriott is assistant professor of neurology at Massachusetts General Hospital in Boston.

Somewhere between 20% and 40% of patients with migraine experience aura. It is most often visual, though it can also include sensory, aphasic, and motor symptoms. Visual aura usually begins as a flickering zigzag pattern in the central visual field that moves slowly toward the periphery and often leaves a scotoma. Typical duration is 15-30 minutes. Aura symptoms are more common in females.

Research in the 1940s conducted by the Brazilian researcher Aristides de Azevedo Pacheco Leão, PhD, then at Harvard Medical School, Boston, showed evidence of CSD in rabbits after electrical or mechanical stimulation. He observed a wave of vasodilation and increased blood flow over the cortex that spread over nearly the entire dorsolateral cortex within 3-6 minutes.

In the 1940s and 1950s, researchers sketched on paper the visual disturbance over 10 minutes, tracking the expanding spectrum across the visual field, from the center toward the periphery. The resulting scotoma advanced across the visual cortex at a rate very similar to that of the cortical spreading observed by Dr. Leão, “potentially linking this electrical event that was described with the aura event of migraine,” said Dr. Harriott. Those researchers hypothesized that the aura was produced by a strong excitation phase, followed by a wave of total inhibition.

More recent functional magnetic resonance imaging studies have also shown that CSD-like disturbances occur when patients experience migraine aura. In one study, researchers observed an initial increase and then a decrease in the blood oxygenation level dependent (BOLD) signal, which spread slowly across the visual cortex and correlated with the aura event. “This study was really important in confirming that a CSD-like phenomenon was likely the underlying perturbation that produced the visual aura of migraine,” said Dr. Harriott.

Despite the evidence that CSD causes migraine aura, its connection to migraine pain hasn’t been firmly established. But Dr. Harriott presented some evidence linking the two. Migraine aura is usually followed by pain, and aura precedes migraine attacks 78%-93% of the time. Cephalic allodynia occurs in migraine about 70% to 80% of the time, and migraine with aura is more often associated with severe cutaneous allodynia than is migraine without aura. Finally, migraine patients with comorbidities have more severe disability, and more frequent cutaneous allodynia and aura than does the general migraine population (40% vs. 29%).

All of that suggests that activation of trigeminal nociceptors is involved with migraine aura, according to Dr. Harriott. Preclinical studies have also suggested links between CSD and activation of trigeminal nociceptors, with both immunohistochemical and electrophysiological lines of evidence. “These data suggest that spreading depression actually activates trigeminal nociceptors that we know are involved in signal pain in the head and neck, and that we know are involved in cephalic allodynia as well,” Dr. Harriott said.

The evidence impressed Allan Purdy, MD, professor of medicine at Dalhousie University, Halifax, N.S., who was the discussant for the presentation. “It’s an excellent case that CSD is a remarkably good correlate for aura,” he said during the session.

Along with potential impacts on migraine pain, aura is also associated with cardiovascular risk. “This is really important to know about in our clinical population,” said Dr. Harriott.

Meta-analyses of case control and cohort studies have shown associations between migraine aura and vascular disorders such as ischemic stroke. One meta-analysis showed about a twofold increased risk associated with migraine compared with the nonmigraine population. This difference was driven by migraine with aura (relative risk [RR], 2.25; 95% confidence interval [CI], 1.53-3.33) rather than migraine without aura (RR, 1.24; 95% CI, 0.86-1.79). Migraine generally is associated with greater risk of myocardial infarction (adjusted hazard ratio, 1.33; 95% CI, 1.08-1.64), and that association may be stronger in the aura phenotype.

There doesn’t appear to be evidence that traditional risk factors for heart disease – such as hypertension, diabetes, or high cholesterol – play a role in the association between aura and heart disease. One possibility is that variables like platelet activation, hypercoagulable state, or genetic susceptibility could be responsible.

The risks associated with migraine aura should be noted, but with a caveat, according to Dr. Purdy. “Even though the relative risk is high, the absolute risk is still relatively low, and patients with migraine with aura, who smoke or are female and over 45, those are the cases where the worry comes in.”

Dr. Harriott and Dr. Purdy have nothing to disclose.

A more than 6-point improvement in Headache Impact Test (HIT-6) total score and a 1-2 category improvement in item-specific scores of HIT-6 appeared to be associated with meaningful change in an individual with chronic migraine, recent research suggests.

Using data from the phase 3 PROMISE-2 study, which evaluated intravenous eptinezumab in doses of 100 mg or 300 mg, or placebo every 12 weeks in 1,072 participants for the prevention of chronic migraine, Carrie R. Houts, PhD, director of psychometrics at the Vector Psychometric Group, in Chapel Hill, N.C., and colleagues determined that their finding of 6-point improvement of HIT-6 total score was consistent with other studies. However, they pointed out that little research has been done in evaluating how item-specific scores of HIT-6 impact individuals with chronic migraine. HIT-6 item scores examine whether individuals with headaches experience severe pain, limit their daily activities, have a desire to lie down, feel too tired to do daily activities, felt “fed up or irritated” because of headaches, and feel their headaches limit concentration on work or daily activities.

“The item-specific responder definitions give clinicians and researchers the ability to evaluate and track the impact of headache on specific item-level areas of patients’ lives. These responder definitions provide practical and easily interpreted results that can be used to evaluate treatment benefits over time and to improve clinician-patients communication focus on improvements in key aspects of functioning in individuals with chronic migraine,” Dr. Houts and colleagues wrote in their study, published in the October issue of Headache.

The 6-point value and the 1-2 category improvement values in item-specific scores, they suggested, could be used as a benchmark to help other clinicians and researchers detect meaningful change in individual patients with chronic migraine. Although the user guide for HIT-6 highlights a 5-point change in the total score as clinically meaningful, the authors of the guide do not provide evidence for why the 5-point value signifies clinically meaningful change, they said.
 

Determining thresholds of clinically meaningful change

In their study, Dr. Houts and colleagues used distribution-based methods to gauge responder values for the HIT-6 total score, while item-specific HIT-6 analyses were measured with Patients’ Global Impression of Change (PGIC), reduction in migraine frequency through monthly migraine days (MMDs), and EuroQol 5 dimensions 5 levels visual analog scale (EQ-5D-5L VAS). The researchers also used HIT-6 values from a literature review and from analyses in PROMISE-2 to calculate “a final chronic migraine-specific responder definition value” between baseline and 12 weeks. Participants in the PROMISE-2 study were mostly women (88.2%) and white (91.0%) with a mean age of 40.5 years.

The literature search revealed responder thresholds for the HIT-6 total score in a range between a decrease of 3 points and 8 points. Within PROMISE-2, the HIT-6 total score responder threshold was found to be between –2.6 and –2.2, which the researchers rounded down to a decrease of 3 points. When taking both sets of responder thresholds into account, the researchers calculated the median responder value as –5.5, which was rounded down to a decrease in 6 points in the HIT-6 total score. “[The estimate] appears most appropriate for discriminating between individuals with chronic migraine who have experienced meaningful change over time and those who have not,” Dr. Houts and colleagues said.

For item-specific HIT-6 scores, the mean score changes were –1 points for categories involving severe pain, limiting activities, lying down, and –2 points for categories involving feeling tired, being fed up or irritated, and limiting concentration.

“Taken together, the current chronic migraine-specific results are consistent with values derived from general headache/migraine samples and suggest that a decrease of 6 points or more on the HIT-6 total score would be considered meaningful to chronic migraine patients,” Dr. Houts and colleagues said. “This would translate to approximately a 4-category change on a single item, change on 2 items of approximately 2 and 3 categories, or a 1-category change on 3 or 4 of the 6 items, depending on the initial category.”

The researchers cautioned that the values outlined in the study “should not be used to determine clinically meaningful difference between treatment groups” and that “future work, similar to that reported here, will identify a chronic migraine-specific clinically meaningful difference between treatment groups value.”
 

A better measure of chronic migraine?

In an interview, J. D. Bartleson Jr., MD, a retired neurologist with the Mayo Clinic in Rochester, Minn., questioned why HIT-6 criteria was used in the initial PROMISE-2 study. “There is not a lot of difference between the significant and insignificant categories. Chronic migraine may be better measured with pain severity and number of headache days per month,” he said.

,“It may be appropriate to use just 1 or 2 symptoms for evaluating a given patient’s headache burden,” in terms of clinical application of the study for neurologists, Dr. Bartleson said. He emphasized that more research is needed.

This study was funded by H. Lundbeck A/S, which also provided funding of medical writing and editorial support for the manuscript. Three authors report being employees of Vector Psychometric Group at the time of the study, and the company received funding from H. Lundbeck A/S for their time conducting study-related research. Three other authors report relationships with pharmaceutical companies, medical societies, government agencies, and industry related to the study in the form of consultancies, advisory board memberships, honoraria, research support, stock or stock options, and employment. Dr. Bartleson reports no relevant conflicts of interest.

SOURCE: Houts C et al. Headache. 2020;60(9):2003-13.

A more than 6-point improvement in Headache Impact Test (HIT-6) total score and a 1-2 category improvement in item-specific scores of HIT-6 appeared to be associated with meaningful change in an individual with chronic migraine, recent research suggests.

Using data from the phase 3 PROMISE-2 study, which evaluated intravenous eptinezumab in doses of 100 mg or 300 mg, or placebo every 12 weeks in 1,072 participants for the prevention of chronic migraine, Carrie R. Houts, PhD, director of psychometrics at the Vector Psychometric Group, in Chapel Hill, N.C., and colleagues determined that their finding of 6-point improvement of HIT-6 total score was consistent with other studies. However, they pointed out that little research has been done in evaluating how item-specific scores of HIT-6 impact individuals with chronic migraine. HIT-6 item scores examine whether individuals with headaches experience severe pain, limit their daily activities, have a desire to lie down, feel too tired to do daily activities, felt “fed up or irritated” because of headaches, and feel their headaches limit concentration on work or daily activities.

“The item-specific responder definitions give clinicians and researchers the ability to evaluate and track the impact of headache on specific item-level areas of patients’ lives. These responder definitions provide practical and easily interpreted results that can be used to evaluate treatment benefits over time and to improve clinician-patients communication focus on improvements in key aspects of functioning in individuals with chronic migraine,” Dr. Houts and colleagues wrote in their study, published in the October issue of Headache.

The 6-point value and the 1-2 category improvement values in item-specific scores, they suggested, could be used as a benchmark to help other clinicians and researchers detect meaningful change in individual patients with chronic migraine. Although the user guide for HIT-6 highlights a 5-point change in the total score as clinically meaningful, the authors of the guide do not provide evidence for why the 5-point value signifies clinically meaningful change, they said.
 

Determining thresholds of clinically meaningful change

In their study, Dr. Houts and colleagues used distribution-based methods to gauge responder values for the HIT-6 total score, while item-specific HIT-6 analyses were measured with Patients’ Global Impression of Change (PGIC), reduction in migraine frequency through monthly migraine days (MMDs), and EuroQol 5 dimensions 5 levels visual analog scale (EQ-5D-5L VAS). The researchers also used HIT-6 values from a literature review and from analyses in PROMISE-2 to calculate “a final chronic migraine-specific responder definition value” between baseline and 12 weeks. Participants in the PROMISE-2 study were mostly women (88.2%) and white (91.0%) with a mean age of 40.5 years.

The literature search revealed responder thresholds for the HIT-6 total score in a range between a decrease of 3 points and 8 points. Within PROMISE-2, the HIT-6 total score responder threshold was found to be between –2.6 and –2.2, which the researchers rounded down to a decrease of 3 points. When taking both sets of responder thresholds into account, the researchers calculated the median responder value as –5.5, which was rounded down to a decrease in 6 points in the HIT-6 total score. “[The estimate] appears most appropriate for discriminating between individuals with chronic migraine who have experienced meaningful change over time and those who have not,” Dr. Houts and colleagues said.

For item-specific HIT-6 scores, the mean score changes were –1 points for categories involving severe pain, limiting activities, lying down, and –2 points for categories involving feeling tired, being fed up or irritated, and limiting concentration.

“Taken together, the current chronic migraine-specific results are consistent with values derived from general headache/migraine samples and suggest that a decrease of 6 points or more on the HIT-6 total score would be considered meaningful to chronic migraine patients,” Dr. Houts and colleagues said. “This would translate to approximately a 4-category change on a single item, change on 2 items of approximately 2 and 3 categories, or a 1-category change on 3 or 4 of the 6 items, depending on the initial category.”

The researchers cautioned that the values outlined in the study “should not be used to determine clinically meaningful difference between treatment groups” and that “future work, similar to that reported here, will identify a chronic migraine-specific clinically meaningful difference between treatment groups value.”
 

A better measure of chronic migraine?

In an interview, J. D. Bartleson Jr., MD, a retired neurologist with the Mayo Clinic in Rochester, Minn., questioned why HIT-6 criteria was used in the initial PROMISE-2 study. “There is not a lot of difference between the significant and insignificant categories. Chronic migraine may be better measured with pain severity and number of headache days per month,” he said.

,“It may be appropriate to use just 1 or 2 symptoms for evaluating a given patient’s headache burden,” in terms of clinical application of the study for neurologists, Dr. Bartleson said. He emphasized that more research is needed.

This study was funded by H. Lundbeck A/S, which also provided funding of medical writing and editorial support for the manuscript. Three authors report being employees of Vector Psychometric Group at the time of the study, and the company received funding from H. Lundbeck A/S for their time conducting study-related research. Three other authors report relationships with pharmaceutical companies, medical societies, government agencies, and industry related to the study in the form of consultancies, advisory board memberships, honoraria, research support, stock or stock options, and employment. Dr. Bartleson reports no relevant conflicts of interest.

SOURCE: Houts C et al. Headache. 2020;60(9):2003-13.

A more than 6-point improvement in Headache Impact Test (HIT-6) total score and a 1-2 category improvement in item-specific scores of HIT-6 appeared to be associated with meaningful change in an individual with chronic migraine, recent research suggests.

Using data from the phase 3 PROMISE-2 study, which evaluated intravenous eptinezumab in doses of 100 mg or 300 mg, or placebo every 12 weeks in 1,072 participants for the prevention of chronic migraine, Carrie R. Houts, PhD, director of psychometrics at the Vector Psychometric Group, in Chapel Hill, N.C., and colleagues determined that their finding of 6-point improvement of HIT-6 total score was consistent with other studies. However, they pointed out that little research has been done in evaluating how item-specific scores of HIT-6 impact individuals with chronic migraine. HIT-6 item scores examine whether individuals with headaches experience severe pain, limit their daily activities, have a desire to lie down, feel too tired to do daily activities, felt “fed up or irritated” because of headaches, and feel their headaches limit concentration on work or daily activities.

“The item-specific responder definitions give clinicians and researchers the ability to evaluate and track the impact of headache on specific item-level areas of patients’ lives. These responder definitions provide practical and easily interpreted results that can be used to evaluate treatment benefits over time and to improve clinician-patients communication focus on improvements in key aspects of functioning in individuals with chronic migraine,” Dr. Houts and colleagues wrote in their study, published in the October issue of Headache.

The 6-point value and the 1-2 category improvement values in item-specific scores, they suggested, could be used as a benchmark to help other clinicians and researchers detect meaningful change in individual patients with chronic migraine. Although the user guide for HIT-6 highlights a 5-point change in the total score as clinically meaningful, the authors of the guide do not provide evidence for why the 5-point value signifies clinically meaningful change, they said.
 

Determining thresholds of clinically meaningful change

In their study, Dr. Houts and colleagues used distribution-based methods to gauge responder values for the HIT-6 total score, while item-specific HIT-6 analyses were measured with Patients’ Global Impression of Change (PGIC), reduction in migraine frequency through monthly migraine days (MMDs), and EuroQol 5 dimensions 5 levels visual analog scale (EQ-5D-5L VAS). The researchers also used HIT-6 values from a literature review and from analyses in PROMISE-2 to calculate “a final chronic migraine-specific responder definition value” between baseline and 12 weeks. Participants in the PROMISE-2 study were mostly women (88.2%) and white (91.0%) with a mean age of 40.5 years.

The literature search revealed responder thresholds for the HIT-6 total score in a range between a decrease of 3 points and 8 points. Within PROMISE-2, the HIT-6 total score responder threshold was found to be between –2.6 and –2.2, which the researchers rounded down to a decrease of 3 points. When taking both sets of responder thresholds into account, the researchers calculated the median responder value as –5.5, which was rounded down to a decrease in 6 points in the HIT-6 total score. “[The estimate] appears most appropriate for discriminating between individuals with chronic migraine who have experienced meaningful change over time and those who have not,” Dr. Houts and colleagues said.

For item-specific HIT-6 scores, the mean score changes were –1 points for categories involving severe pain, limiting activities, lying down, and –2 points for categories involving feeling tired, being fed up or irritated, and limiting concentration.

“Taken together, the current chronic migraine-specific results are consistent with values derived from general headache/migraine samples and suggest that a decrease of 6 points or more on the HIT-6 total score would be considered meaningful to chronic migraine patients,” Dr. Houts and colleagues said. “This would translate to approximately a 4-category change on a single item, change on 2 items of approximately 2 and 3 categories, or a 1-category change on 3 or 4 of the 6 items, depending on the initial category.”

The researchers cautioned that the values outlined in the study “should not be used to determine clinically meaningful difference between treatment groups” and that “future work, similar to that reported here, will identify a chronic migraine-specific clinically meaningful difference between treatment groups value.”
 

A better measure of chronic migraine?

In an interview, J. D. Bartleson Jr., MD, a retired neurologist with the Mayo Clinic in Rochester, Minn., questioned why HIT-6 criteria was used in the initial PROMISE-2 study. “There is not a lot of difference between the significant and insignificant categories. Chronic migraine may be better measured with pain severity and number of headache days per month,” he said.

,“It may be appropriate to use just 1 or 2 symptoms for evaluating a given patient’s headache burden,” in terms of clinical application of the study for neurologists, Dr. Bartleson said. He emphasized that more research is needed.

This study was funded by H. Lundbeck A/S, which also provided funding of medical writing and editorial support for the manuscript. Three authors report being employees of Vector Psychometric Group at the time of the study, and the company received funding from H. Lundbeck A/S for their time conducting study-related research. Three other authors report relationships with pharmaceutical companies, medical societies, government agencies, and industry related to the study in the form of consultancies, advisory board memberships, honoraria, research support, stock or stock options, and employment. Dr. Bartleson reports no relevant conflicts of interest.

SOURCE: Houts C et al. Headache. 2020;60(9):2003-13.

The first dual-purpose, external trigeminal nerve stimulation device to treat and prevent acute migraine is now available over the counter to adults over age 18. The Food and Drug Administration has cleared Cefaly Dual (Cefaly Technology) which was previously available only by prescription.

Most migraines involve the trigeminal nerve, which can be accessed through the skin on the forehead. Cefaly Dual stimulates the trigeminal nerve using a reusable self-adhesive electrode placed on the forehead.

The device has two settings, ACUTE and PREVENT. In the ACUTE setting, the individual wears the device for 60 minutes at headache onset or during a migraine attack. In the PREVENT setting, the individual wears the device for 20 minutes daily to help prevent future episodes.

At the start of a session, the wearer may feel a slight tingling sensation, which gradually increases and spreads throughout the forehead and the front part of the head. After about 14 minutes, the intensity stabilizes and remains constant until the treatment session is over, according to the company. The device automatically shuts off at the end of each session. It can be used as a stand-alone option or with existing treatment, the company noted.

“For millions of people across the U.S., living with migraine pain and coping with debilitating symptoms are daily realities. It is our mission to provide consumers with increased access to an effective and safe dual modality migraine treatment that is scientifically proven to reduce the number of monthly migraine days by almost half,” Jennifer Trainor McDermott, CEO of Cefaly Technology, said in a news release.

The FDA’s over-the-counter clearance of Cefaly Dual was based on several randomized, controlled clinical trials supporting the efficacy and safety of the device, the company said.

An earlier version of the Cefaly device was approved in the United States in March 2014 to help prevent migraine headache in adults aged 18 or older. The next-generation Cefaly Dual device is “small and sleek in comparison to its older model, which uses bands along the sides to create room for batteries. The newest device is palm-sized, more portable, and uses a battery that is rechargeable via USB,” the company said.

Last spring, the company announced a buyback program where customers in the United States may return their original device and receive a discount of the purchase of the Cefaly Dual device.

A version of this article originally appeared on Medscape.com.

The first dual-purpose, external trigeminal nerve stimulation device to treat and prevent acute migraine is now available over the counter to adults over age 18. The Food and Drug Administration has cleared Cefaly Dual (Cefaly Technology) which was previously available only by prescription.

Most migraines involve the trigeminal nerve, which can be accessed through the skin on the forehead. Cefaly Dual stimulates the trigeminal nerve using a reusable self-adhesive electrode placed on the forehead.

The device has two settings, ACUTE and PREVENT. In the ACUTE setting, the individual wears the device for 60 minutes at headache onset or during a migraine attack. In the PREVENT setting, the individual wears the device for 20 minutes daily to help prevent future episodes.

At the start of a session, the wearer may feel a slight tingling sensation, which gradually increases and spreads throughout the forehead and the front part of the head. After about 14 minutes, the intensity stabilizes and remains constant until the treatment session is over, according to the company. The device automatically shuts off at the end of each session. It can be used as a stand-alone option or with existing treatment, the company noted.

“For millions of people across the U.S., living with migraine pain and coping with debilitating symptoms are daily realities. It is our mission to provide consumers with increased access to an effective and safe dual modality migraine treatment that is scientifically proven to reduce the number of monthly migraine days by almost half,” Jennifer Trainor McDermott, CEO of Cefaly Technology, said in a news release.

The FDA’s over-the-counter clearance of Cefaly Dual was based on several randomized, controlled clinical trials supporting the efficacy and safety of the device, the company said.

An earlier version of the Cefaly device was approved in the United States in March 2014 to help prevent migraine headache in adults aged 18 or older. The next-generation Cefaly Dual device is “small and sleek in comparison to its older model, which uses bands along the sides to create room for batteries. The newest device is palm-sized, more portable, and uses a battery that is rechargeable via USB,” the company said.

Last spring, the company announced a buyback program where customers in the United States may return their original device and receive a discount of the purchase of the Cefaly Dual device.

A version of this article originally appeared on Medscape.com.

The first dual-purpose, external trigeminal nerve stimulation device to treat and prevent acute migraine is now available over the counter to adults over age 18. The Food and Drug Administration has cleared Cefaly Dual (Cefaly Technology) which was previously available only by prescription.

Most migraines involve the trigeminal nerve, which can be accessed through the skin on the forehead. Cefaly Dual stimulates the trigeminal nerve using a reusable self-adhesive electrode placed on the forehead.

The device has two settings, ACUTE and PREVENT. In the ACUTE setting, the individual wears the device for 60 minutes at headache onset or during a migraine attack. In the PREVENT setting, the individual wears the device for 20 minutes daily to help prevent future episodes.

At the start of a session, the wearer may feel a slight tingling sensation, which gradually increases and spreads throughout the forehead and the front part of the head. After about 14 minutes, the intensity stabilizes and remains constant until the treatment session is over, according to the company. The device automatically shuts off at the end of each session. It can be used as a stand-alone option or with existing treatment, the company noted.

“For millions of people across the U.S., living with migraine pain and coping with debilitating symptoms are daily realities. It is our mission to provide consumers with increased access to an effective and safe dual modality migraine treatment that is scientifically proven to reduce the number of monthly migraine days by almost half,” Jennifer Trainor McDermott, CEO of Cefaly Technology, said in a news release.

The FDA’s over-the-counter clearance of Cefaly Dual was based on several randomized, controlled clinical trials supporting the efficacy and safety of the device, the company said.

An earlier version of the Cefaly device was approved in the United States in March 2014 to help prevent migraine headache in adults aged 18 or older. The next-generation Cefaly Dual device is “small and sleek in comparison to its older model, which uses bands along the sides to create room for batteries. The newest device is palm-sized, more portable, and uses a battery that is rechargeable via USB,” the company said.

Last spring, the company announced a buyback program where customers in the United States may return their original device and receive a discount of the purchase of the Cefaly Dual device.

A version of this article originally appeared on Medscape.com.

Among migraine sufferers, levels of soluble vascular cell adhesion molecule 1 (sVCAM1) in cerebrospinal fluid (CSF) are higher in those who experience more frequent attacks, according to a new study. The molecule could be a novel biomarker for the study of the mechanisms that underlie migraine. The work also suggests that the barrier between blood and CSF, sometimes described as leaky, is in fact selectively permeable.

The findings complement recent PET and dynamic contrast-enhanced MRI studies that have shown no sign of damage to the blood brain barrier (BBB) in migraine. Instead, there may be heightened transport of some molecules from blood to the CSF, evidenced by greater increases in fibrinogen levels in CSF than albumin. sVCAM1 might influence BBB or blood-CSF barrier permeability, possibly as a protective measure against fibrinogen, according to Michael Harrington, MD, scientific director of neuroscience at the Huntington Medical Research Institutes, Pasadena, Calif., who presented the findings in a poster at the virtual annual meeting of the American Headache Society.
 

BBB disruption?

The BBB is a well-known structure that regulates what molecules enter the brain, but the blood-CSF barrier, while lesser known, is also important. It comprises choroid plexus epithelial cells that oversee selective exchange of waste products, ions, and nutrients. Acute inflammation or chronic effects from conditions like stroke, multiple sclerosis, and Alzheimer’s disease can alter the function of this barrier.

No other capillary biomarkers were different between controls and patients with migraine – only sVCAM1. “My data supports a highly selective transport change from blood to CSF, which I propose is less likely to come from brain capillaries than choroid plexuses, especially since choroid plexuses produce the bulk of the CSF. It’s a work in progress, but based on this likelihood of choroid plexus involvement, I am accumulating more data that support the choroid plexuses as the primary source of change in migraine,” said Dr. Harrington in an interview.

“The most important finding of the study is that the blood brain barrier is not compromised in people with migraine,” said Rami Burstein, PhD, professor of neuroscience at Harvard Medical School, Boston, who was asked to comment on the findings. “Most unwanted adverse events are caused by drug action inside the brain, and thus, peripherally acting drugs become more favorable as they usually have fewer side effects. Given that the headache aspect of migraine could be intercepted outside the brain, the fact that the BBB is not compromised is a very good news,” Dr. Burstein added.

Dr. Harrington’s team recruited 74 subjects: 14 nonmigraine controls, 16 who were experiencing migraine illness (ictal), 27 not experiencing migraine illness (interictal), and 17 with chronic migraine. The CSF/serum quotient for albumen was higher in the 60 migraineurs than in the 14 controls (5.6 g/L vs. 4.1 g/L; P = .04), as was the CSF/serum quotient for fibrinogen (161.5 g/L vs. 86.1 g/L; P = .007). CSF levels of plasminogen were also higher in patients with migraine (240.7 ng/mL vs. 186.2 ng/mL; P = .03).

When the researchers compared ictal to interictal subjects, they found no difference in fibrinogen or albumen. That suggested that these values are generally increased in migraine patients compared with controls, rather than spiking during attacks. They also divided subjects by annual frequency, including groups experiencing fewer than 24 migraines per year, 24-180 attacks per year, and more than 180 attacks per year. The quotient for fibrinogen increased in migraineurs in general, compared with controls, but then decreased as the frequency of migraine went up (198.6 g/L, 167.0 g/L, and 121.6 g/L, respectively; P = .004).

CSF levels of sVCAM1 were 4.7 ng/mL in controls, 4.5 in the group with fewer than 24 migraines per year, 5.5 in the 24-180 group, and 7.1 in the group with more than 180 (P = .004).
 

Implications for therapy

The research, though at a very early stage, could have implications for therapies. Most drugs that treat migraine remain something of a mystery because researchers don’t know for sure where they act. In the brain? Systemically? The question of permeability of various molecules through both barriers could lend insight into what’s happening. “That’s why there is interest in barrier transport, and we’re showing there is a selective change of transport in migraineurs,” said Dr. Harrington.

As for more general therapeutic implications, “I can only speculate, but clearly there is baseline altered transport, probably in the choroid plexuses of these people,” said Dr. Harrington. He added that in time researchers might test drugs to see if they alter sVCAM1 levels or even develop novel drug candidates to act directly on it.

But he also sounded a note of caution because of the exploratory nature of the study. “These are all really early speculations.”

The study was funded by NIH, the Sunstar Foundation, Wyngs Foundation, and the Higgins Family. Dr. Harrington has no relevant disclosures.

SOURCE: Harrington M et al. AHS 2020, Abstract 842752.

Among migraine sufferers, levels of soluble vascular cell adhesion molecule 1 (sVCAM1) in cerebrospinal fluid (CSF) are higher in those who experience more frequent attacks, according to a new study. The molecule could be a novel biomarker for the study of the mechanisms that underlie migraine. The work also suggests that the barrier between blood and CSF, sometimes described as leaky, is in fact selectively permeable.

The findings complement recent PET and dynamic contrast-enhanced MRI studies that have shown no sign of damage to the blood brain barrier (BBB) in migraine. Instead, there may be heightened transport of some molecules from blood to the CSF, evidenced by greater increases in fibrinogen levels in CSF than albumin. sVCAM1 might influence BBB or blood-CSF barrier permeability, possibly as a protective measure against fibrinogen, according to Michael Harrington, MD, scientific director of neuroscience at the Huntington Medical Research Institutes, Pasadena, Calif., who presented the findings in a poster at the virtual annual meeting of the American Headache Society.
 

BBB disruption?

The BBB is a well-known structure that regulates what molecules enter the brain, but the blood-CSF barrier, while lesser known, is also important. It comprises choroid plexus epithelial cells that oversee selective exchange of waste products, ions, and nutrients. Acute inflammation or chronic effects from conditions like stroke, multiple sclerosis, and Alzheimer’s disease can alter the function of this barrier.

No other capillary biomarkers were different between controls and patients with migraine – only sVCAM1. “My data supports a highly selective transport change from blood to CSF, which I propose is less likely to come from brain capillaries than choroid plexuses, especially since choroid plexuses produce the bulk of the CSF. It’s a work in progress, but based on this likelihood of choroid plexus involvement, I am accumulating more data that support the choroid plexuses as the primary source of change in migraine,” said Dr. Harrington in an interview.

“The most important finding of the study is that the blood brain barrier is not compromised in people with migraine,” said Rami Burstein, PhD, professor of neuroscience at Harvard Medical School, Boston, who was asked to comment on the findings. “Most unwanted adverse events are caused by drug action inside the brain, and thus, peripherally acting drugs become more favorable as they usually have fewer side effects. Given that the headache aspect of migraine could be intercepted outside the brain, the fact that the BBB is not compromised is a very good news,” Dr. Burstein added.

Dr. Harrington’s team recruited 74 subjects: 14 nonmigraine controls, 16 who were experiencing migraine illness (ictal), 27 not experiencing migraine illness (interictal), and 17 with chronic migraine. The CSF/serum quotient for albumen was higher in the 60 migraineurs than in the 14 controls (5.6 g/L vs. 4.1 g/L; P = .04), as was the CSF/serum quotient for fibrinogen (161.5 g/L vs. 86.1 g/L; P = .007). CSF levels of plasminogen were also higher in patients with migraine (240.7 ng/mL vs. 186.2 ng/mL; P = .03).

When the researchers compared ictal to interictal subjects, they found no difference in fibrinogen or albumen. That suggested that these values are generally increased in migraine patients compared with controls, rather than spiking during attacks. They also divided subjects by annual frequency, including groups experiencing fewer than 24 migraines per year, 24-180 attacks per year, and more than 180 attacks per year. The quotient for fibrinogen increased in migraineurs in general, compared with controls, but then decreased as the frequency of migraine went up (198.6 g/L, 167.0 g/L, and 121.6 g/L, respectively; P = .004).

CSF levels of sVCAM1 were 4.7 ng/mL in controls, 4.5 in the group with fewer than 24 migraines per year, 5.5 in the 24-180 group, and 7.1 in the group with more than 180 (P = .004).
 

Implications for therapy

The research, though at a very early stage, could have implications for therapies. Most drugs that treat migraine remain something of a mystery because researchers don’t know for sure where they act. In the brain? Systemically? The question of permeability of various molecules through both barriers could lend insight into what’s happening. “That’s why there is interest in barrier transport, and we’re showing there is a selective change of transport in migraineurs,” said Dr. Harrington.

As for more general therapeutic implications, “I can only speculate, but clearly there is baseline altered transport, probably in the choroid plexuses of these people,” said Dr. Harrington. He added that in time researchers might test drugs to see if they alter sVCAM1 levels or even develop novel drug candidates to act directly on it.

But he also sounded a note of caution because of the exploratory nature of the study. “These are all really early speculations.”

The study was funded by NIH, the Sunstar Foundation, Wyngs Foundation, and the Higgins Family. Dr. Harrington has no relevant disclosures.

SOURCE: Harrington M et al. AHS 2020, Abstract 842752.

Among migraine sufferers, levels of soluble vascular cell adhesion molecule 1 (sVCAM1) in cerebrospinal fluid (CSF) are higher in those who experience more frequent attacks, according to a new study. The molecule could be a novel biomarker for the study of the mechanisms that underlie migraine. The work also suggests that the barrier between blood and CSF, sometimes described as leaky, is in fact selectively permeable.

The findings complement recent PET and dynamic contrast-enhanced MRI studies that have shown no sign of damage to the blood brain barrier (BBB) in migraine. Instead, there may be heightened transport of some molecules from blood to the CSF, evidenced by greater increases in fibrinogen levels in CSF than albumin. sVCAM1 might influence BBB or blood-CSF barrier permeability, possibly as a protective measure against fibrinogen, according to Michael Harrington, MD, scientific director of neuroscience at the Huntington Medical Research Institutes, Pasadena, Calif., who presented the findings in a poster at the virtual annual meeting of the American Headache Society.
 

BBB disruption?

The BBB is a well-known structure that regulates what molecules enter the brain, but the blood-CSF barrier, while lesser known, is also important. It comprises choroid plexus epithelial cells that oversee selective exchange of waste products, ions, and nutrients. Acute inflammation or chronic effects from conditions like stroke, multiple sclerosis, and Alzheimer’s disease can alter the function of this barrier.

No other capillary biomarkers were different between controls and patients with migraine – only sVCAM1. “My data supports a highly selective transport change from blood to CSF, which I propose is less likely to come from brain capillaries than choroid plexuses, especially since choroid plexuses produce the bulk of the CSF. It’s a work in progress, but based on this likelihood of choroid plexus involvement, I am accumulating more data that support the choroid plexuses as the primary source of change in migraine,” said Dr. Harrington in an interview.

“The most important finding of the study is that the blood brain barrier is not compromised in people with migraine,” said Rami Burstein, PhD, professor of neuroscience at Harvard Medical School, Boston, who was asked to comment on the findings. “Most unwanted adverse events are caused by drug action inside the brain, and thus, peripherally acting drugs become more favorable as they usually have fewer side effects. Given that the headache aspect of migraine could be intercepted outside the brain, the fact that the BBB is not compromised is a very good news,” Dr. Burstein added.

Dr. Harrington’s team recruited 74 subjects: 14 nonmigraine controls, 16 who were experiencing migraine illness (ictal), 27 not experiencing migraine illness (interictal), and 17 with chronic migraine. The CSF/serum quotient for albumen was higher in the 60 migraineurs than in the 14 controls (5.6 g/L vs. 4.1 g/L; P = .04), as was the CSF/serum quotient for fibrinogen (161.5 g/L vs. 86.1 g/L; P = .007). CSF levels of plasminogen were also higher in patients with migraine (240.7 ng/mL vs. 186.2 ng/mL; P = .03).

When the researchers compared ictal to interictal subjects, they found no difference in fibrinogen or albumen. That suggested that these values are generally increased in migraine patients compared with controls, rather than spiking during attacks. They also divided subjects by annual frequency, including groups experiencing fewer than 24 migraines per year, 24-180 attacks per year, and more than 180 attacks per year. The quotient for fibrinogen increased in migraineurs in general, compared with controls, but then decreased as the frequency of migraine went up (198.6 g/L, 167.0 g/L, and 121.6 g/L, respectively; P = .004).

CSF levels of sVCAM1 were 4.7 ng/mL in controls, 4.5 in the group with fewer than 24 migraines per year, 5.5 in the 24-180 group, and 7.1 in the group with more than 180 (P = .004).
 

Implications for therapy

The research, though at a very early stage, could have implications for therapies. Most drugs that treat migraine remain something of a mystery because researchers don’t know for sure where they act. In the brain? Systemically? The question of permeability of various molecules through both barriers could lend insight into what’s happening. “That’s why there is interest in barrier transport, and we’re showing there is a selective change of transport in migraineurs,” said Dr. Harrington.

As for more general therapeutic implications, “I can only speculate, but clearly there is baseline altered transport, probably in the choroid plexuses of these people,” said Dr. Harrington. He added that in time researchers might test drugs to see if they alter sVCAM1 levels or even develop novel drug candidates to act directly on it.

But he also sounded a note of caution because of the exploratory nature of the study. “These are all really early speculations.”

The study was funded by NIH, the Sunstar Foundation, Wyngs Foundation, and the Higgins Family. Dr. Harrington has no relevant disclosures.

SOURCE: Harrington M et al. AHS 2020, Abstract 842752.

Compared with their counterparts who get more relief, patients with difficult-to-treat migraine are more likely to delay acute treatment and take over-the-counter and opioid painkillers. They are also more likely to have depression and impairment. Overall, insufficient responders—patients less likely to get relief shortly after acute treatment—are “more medically and psychosocially complex,” wrote the authors of the study, which appeared in the July/August issue of Headache.

Common characteristics of insufficient responders

The researchers, led by Louise Lombard, M Nutr, of Eli Lilly and Company, analyzed data from a 2014 cross-sectional survey. They tracked 583 patients with migraine, including 200 (34%) who were considered insufficient responders because they failed to achieve freedom from pain within 2 hours of acute treatment in at least four of five attacks.

The insufficient and sufficient responder groups were similar in age (mean = 40 for both) and gender (80% and 75% female, respectively, P = .170) and race (72% and 77% white, P = .279).

However, insufficient responders were clearly more affected by headaches, multiple treatments, and other burdens. Compared with those who had better responses to treatment, they were more likely to have four or more migraine headache days per month (46% vs. 31%), rebound or medication-overuse headaches (16% vs. 7%) and chronic migraine (12% vs. 5%, all P < .05).

They were also more likely have comorbid depression (38% vs. 22%) and psychological conditions other than depression and anxiety (8% vs. 4%, all P < .05).

As for treatment, insufficient response was higher in patients who waited until the appearance of pain to take medication (odds ratio = 1.83, 95% confidence interval [CI] 1.15–2.92, P = .011, after adjustment for covariates). And insufficient responders were more likely to have been prescribed at least three unique preventive regimens (12% vs. 6%), to take over-the-counter medications (50% vs. 38%) and to take opioid painkillers (16% vs. 8%, all P < .05).

The authors, who caution that the study does not prove cause and effect, wrote that insufficient responders “may benefit from education on how and when to use current treatments.”
 

Managing insufficient responders

Neurology Reviews editor-in-chief Alan M. Rapoport, MD, said the study “confirms a lot of what we knew.” Dr, Rapoport, who was not involved in the study, is clinical professor of neurology at the University of California, Los Angeles.

“As expected, the insufficient responders used more opioids and over-the-counter medications, which is not the ideal way to treat migraine,” he said. “That probably caused them to have medication-overuse headache, which might have caused them to respond poorly to even the best treatment regimen. They also had more severe symptoms, more comorbidities, and a poorer quality of life. They also had more impairment and greater impact on work, with more of them unemployed.”

The insufficient responders also “took medication at the time or after the pain began, rather than before it when they thought the attack was beginning due to premonitory symptoms,” he said.

Dr. Rapoport also noted a surprising and unusual finding: Patients who did not report sensitivity to light as their most bothersome symptom were more likely to be insufficient responders (OR = 2.3, 95% CI [1.21–4.37], P = .011). “In all recent migraine studies,” he said, “the majority of patients selected photophobia as their most bothersome symptom.”

In the big picture, he said, the study suggests that “a third triptan does not seem to work better than the first two, patients with medication-overuse headache and chronic migraine and those not on preventive medication do not respond that well to acute care treatment, and the same is true when depression is present.”

No study funding was reported. Four study authors reported ties with Eli Lilly, and two reported employment by Adelphi Real World, which provided the survey results..

SOURCE: Lombard L et al. Headache. 2020;60(7):1325-39. doi: 10.1111/head.13835.

Compared with their counterparts who get more relief, patients with difficult-to-treat migraine are more likely to delay acute treatment and take over-the-counter and opioid painkillers. They are also more likely to have depression and impairment. Overall, insufficient responders—patients less likely to get relief shortly after acute treatment—are “more medically and psychosocially complex,” wrote the authors of the study, which appeared in the July/August issue of Headache.

Common characteristics of insufficient responders

The researchers, led by Louise Lombard, M Nutr, of Eli Lilly and Company, analyzed data from a 2014 cross-sectional survey. They tracked 583 patients with migraine, including 200 (34%) who were considered insufficient responders because they failed to achieve freedom from pain within 2 hours of acute treatment in at least four of five attacks.

The insufficient and sufficient responder groups were similar in age (mean = 40 for both) and gender (80% and 75% female, respectively, P = .170) and race (72% and 77% white, P = .279).

However, insufficient responders were clearly more affected by headaches, multiple treatments, and other burdens. Compared with those who had better responses to treatment, they were more likely to have four or more migraine headache days per month (46% vs. 31%), rebound or medication-overuse headaches (16% vs. 7%) and chronic migraine (12% vs. 5%, all P < .05).

They were also more likely have comorbid depression (38% vs. 22%) and psychological conditions other than depression and anxiety (8% vs. 4%, all P < .05).

As for treatment, insufficient response was higher in patients who waited until the appearance of pain to take medication (odds ratio = 1.83, 95% confidence interval [CI] 1.15–2.92, P = .011, after adjustment for covariates). And insufficient responders were more likely to have been prescribed at least three unique preventive regimens (12% vs. 6%), to take over-the-counter medications (50% vs. 38%) and to take opioid painkillers (16% vs. 8%, all P < .05).

The authors, who caution that the study does not prove cause and effect, wrote that insufficient responders “may benefit from education on how and when to use current treatments.”
 

Managing insufficient responders

Neurology Reviews editor-in-chief Alan M. Rapoport, MD, said the study “confirms a lot of what we knew.” Dr, Rapoport, who was not involved in the study, is clinical professor of neurology at the University of California, Los Angeles.

“As expected, the insufficient responders used more opioids and over-the-counter medications, which is not the ideal way to treat migraine,” he said. “That probably caused them to have medication-overuse headache, which might have caused them to respond poorly to even the best treatment regimen. They also had more severe symptoms, more comorbidities, and a poorer quality of life. They also had more impairment and greater impact on work, with more of them unemployed.”

The insufficient responders also “took medication at the time or after the pain began, rather than before it when they thought the attack was beginning due to premonitory symptoms,” he said.

Dr. Rapoport also noted a surprising and unusual finding: Patients who did not report sensitivity to light as their most bothersome symptom were more likely to be insufficient responders (OR = 2.3, 95% CI [1.21–4.37], P = .011). “In all recent migraine studies,” he said, “the majority of patients selected photophobia as their most bothersome symptom.”

In the big picture, he said, the study suggests that “a third triptan does not seem to work better than the first two, patients with medication-overuse headache and chronic migraine and those not on preventive medication do not respond that well to acute care treatment, and the same is true when depression is present.”

No study funding was reported. Four study authors reported ties with Eli Lilly, and two reported employment by Adelphi Real World, which provided the survey results..

SOURCE: Lombard L et al. Headache. 2020;60(7):1325-39. doi: 10.1111/head.13835.

Compared with their counterparts who get more relief, patients with difficult-to-treat migraine are more likely to delay acute treatment and take over-the-counter and opioid painkillers. They are also more likely to have depression and impairment. Overall, insufficient responders—patients less likely to get relief shortly after acute treatment—are “more medically and psychosocially complex,” wrote the authors of the study, which appeared in the July/August issue of Headache.

Common characteristics of insufficient responders

The researchers, led by Louise Lombard, M Nutr, of Eli Lilly and Company, analyzed data from a 2014 cross-sectional survey. They tracked 583 patients with migraine, including 200 (34%) who were considered insufficient responders because they failed to achieve freedom from pain within 2 hours of acute treatment in at least four of five attacks.

The insufficient and sufficient responder groups were similar in age (mean = 40 for both) and gender (80% and 75% female, respectively, P = .170) and race (72% and 77% white, P = .279).

However, insufficient responders were clearly more affected by headaches, multiple treatments, and other burdens. Compared with those who had better responses to treatment, they were more likely to have four or more migraine headache days per month (46% vs. 31%), rebound or medication-overuse headaches (16% vs. 7%) and chronic migraine (12% vs. 5%, all P < .05).

They were also more likely have comorbid depression (38% vs. 22%) and psychological conditions other than depression and anxiety (8% vs. 4%, all P < .05).

As for treatment, insufficient response was higher in patients who waited until the appearance of pain to take medication (odds ratio = 1.83, 95% confidence interval [CI] 1.15–2.92, P = .011, after adjustment for covariates). And insufficient responders were more likely to have been prescribed at least three unique preventive regimens (12% vs. 6%), to take over-the-counter medications (50% vs. 38%) and to take opioid painkillers (16% vs. 8%, all P < .05).

The authors, who caution that the study does not prove cause and effect, wrote that insufficient responders “may benefit from education on how and when to use current treatments.”
 

Managing insufficient responders

Neurology Reviews editor-in-chief Alan M. Rapoport, MD, said the study “confirms a lot of what we knew.” Dr, Rapoport, who was not involved in the study, is clinical professor of neurology at the University of California, Los Angeles.

“As expected, the insufficient responders used more opioids and over-the-counter medications, which is not the ideal way to treat migraine,” he said. “That probably caused them to have medication-overuse headache, which might have caused them to respond poorly to even the best treatment regimen. They also had more severe symptoms, more comorbidities, and a poorer quality of life. They also had more impairment and greater impact on work, with more of them unemployed.”

The insufficient responders also “took medication at the time or after the pain began, rather than before it when they thought the attack was beginning due to premonitory symptoms,” he said.

Dr. Rapoport also noted a surprising and unusual finding: Patients who did not report sensitivity to light as their most bothersome symptom were more likely to be insufficient responders (OR = 2.3, 95% CI [1.21–4.37], P = .011). “In all recent migraine studies,” he said, “the majority of patients selected photophobia as their most bothersome symptom.”

In the big picture, he said, the study suggests that “a third triptan does not seem to work better than the first two, patients with medication-overuse headache and chronic migraine and those not on preventive medication do not respond that well to acute care treatment, and the same is true when depression is present.”

No study funding was reported. Four study authors reported ties with Eli Lilly, and two reported employment by Adelphi Real World, which provided the survey results..

SOURCE: Lombard L et al. Headache. 2020;60(7):1325-39. doi: 10.1111/head.13835.

The novel, orally administered calcitonin gene-related peptide (CGRP) antagonist atogepant has met the primary endpoint in a phase 3 trial for migraine prevention, AbbVie, the company developing the drug, has announced.

Top-line results from the ADVANCE trial, which evaluated atogepant 10, 30, and 60 mg, showed all three doses were associated with a significant reduction from baseline in mean monthly migraine days, compared with placebo.

There were also significant improvements in all six secondary endpoints with the two higher doses.

Data from the ADVANCE trial and a previous phase 2/3 trial will be the basis for regulatory submissions in the United States and other countries, AbbVie reported.

Decreased migraine days

The phase 3, multicenter, randomized, double-blind, placebo-controlled, parallel-group trial was designed to evaluate the efficacy, safety, and tolerability of oral atogepant for the prevention of migraine in those who experienced 4-14 migraine days per month.

A total of 910 patients were randomized to one of four treatment groups: 10 mg, 30 mg, or 60 mg of atogepant once daily or placebo. Efficacy analyses were based on the modified intent-to-treat population of 873 patients.

The primary endpoint was change from baseline in mean monthly migraine days during the 12-week treatment period. All atogepant dose groups met the primary endpoint and demonstrated significantly greater decreases in mean monthly migraine days, compared with placebo.

Mean monthly migraine days were reduced by 3.69 days with the 10-mg dose, 3.86 days with the 30-mg dose, and 4.2 days with the 60-mg dose of atogepant, compared with a reduction of 2.48 migraine days in the placebo group (P < .0001, all dose groups vs. placebo).

A key secondary endpoint measured the proportion of patients who achieved at least a 50% reduction in mean monthly migraine days over 12 weeks. This outcome occurred in 55.6% of the 10-mg atogepant group, 58.7% of the 30-mg group, and 60.8% of the 60-mg group, compared with 29% of the placebo group (P < .0001, all dose groups vs. placebo).

Significant improvements

Additional secondary endpoints measured during the 12-week treatment period included change from baseline in mean monthly headache days, mean monthly acute–medication use days, mean monthly performance of daily activities and physical impairment domain scores on the Activity Impairment in Migraine-Diary, and change from baseline in the Migraine-Specific Quality of Life Questionnaire Role Function-Restrictive domain score at week 12. Treatment with the 30-mg and 60-mg doses resulted in significant improvements in all secondary endpoints, and treatment with the 10-mg dose resulted in significant improvements in four of the six secondary endpoints.

No new safety risks were observed when compared with the safety profile of atogepant observed in previous trials, AbbVie said. Serious adverse events occurred in 0.9% of patients in the atogepant 10-mg group versus 0.9% of patients in the placebo group. No patients in the atogepant 30-mg or 60-mg groups experienced a serious adverse event. The most common adverse events (reported in at least 5% of patients and at least one atogepant group and at a rate greater than placebo), across all doses versus placebo, were constipation (6.9%-7.7% vs. 0.5%), nausea (4.4%-6.1% vs. 1.8%), and upper respiratory tract infection (3.9%-5.7% vs. 4.5%).

Most cases of constipation, nausea, and upper respiratory tract infection were mild or moderate in severity and did not lead to discontinuation. There were no hepatic safety issues identified in the trial.

Full data results will be presented at an upcoming medical congress and/or published in a peer-reviewed journal, the company said.
 

A version of this article originally appeared on Medscape.com.

The novel, orally administered calcitonin gene-related peptide (CGRP) antagonist atogepant has met the primary endpoint in a phase 3 trial for migraine prevention, AbbVie, the company developing the drug, has announced.

Top-line results from the ADVANCE trial, which evaluated atogepant 10, 30, and 60 mg, showed all three doses were associated with a significant reduction from baseline in mean monthly migraine days, compared with placebo.

There were also significant improvements in all six secondary endpoints with the two higher doses.

Data from the ADVANCE trial and a previous phase 2/3 trial will be the basis for regulatory submissions in the United States and other countries, AbbVie reported.

Decreased migraine days

The phase 3, multicenter, randomized, double-blind, placebo-controlled, parallel-group trial was designed to evaluate the efficacy, safety, and tolerability of oral atogepant for the prevention of migraine in those who experienced 4-14 migraine days per month.

A total of 910 patients were randomized to one of four treatment groups: 10 mg, 30 mg, or 60 mg of atogepant once daily or placebo. Efficacy analyses were based on the modified intent-to-treat population of 873 patients.

The primary endpoint was change from baseline in mean monthly migraine days during the 12-week treatment period. All atogepant dose groups met the primary endpoint and demonstrated significantly greater decreases in mean monthly migraine days, compared with placebo.

Mean monthly migraine days were reduced by 3.69 days with the 10-mg dose, 3.86 days with the 30-mg dose, and 4.2 days with the 60-mg dose of atogepant, compared with a reduction of 2.48 migraine days in the placebo group (P < .0001, all dose groups vs. placebo).

A key secondary endpoint measured the proportion of patients who achieved at least a 50% reduction in mean monthly migraine days over 12 weeks. This outcome occurred in 55.6% of the 10-mg atogepant group, 58.7% of the 30-mg group, and 60.8% of the 60-mg group, compared with 29% of the placebo group (P < .0001, all dose groups vs. placebo).

Significant improvements

Additional secondary endpoints measured during the 12-week treatment period included change from baseline in mean monthly headache days, mean monthly acute–medication use days, mean monthly performance of daily activities and physical impairment domain scores on the Activity Impairment in Migraine-Diary, and change from baseline in the Migraine-Specific Quality of Life Questionnaire Role Function-Restrictive domain score at week 12. Treatment with the 30-mg and 60-mg doses resulted in significant improvements in all secondary endpoints, and treatment with the 10-mg dose resulted in significant improvements in four of the six secondary endpoints.

No new safety risks were observed when compared with the safety profile of atogepant observed in previous trials, AbbVie said. Serious adverse events occurred in 0.9% of patients in the atogepant 10-mg group versus 0.9% of patients in the placebo group. No patients in the atogepant 30-mg or 60-mg groups experienced a serious adverse event. The most common adverse events (reported in at least 5% of patients and at least one atogepant group and at a rate greater than placebo), across all doses versus placebo, were constipation (6.9%-7.7% vs. 0.5%), nausea (4.4%-6.1% vs. 1.8%), and upper respiratory tract infection (3.9%-5.7% vs. 4.5%).

Most cases of constipation, nausea, and upper respiratory tract infection were mild or moderate in severity and did not lead to discontinuation. There were no hepatic safety issues identified in the trial.

Full data results will be presented at an upcoming medical congress and/or published in a peer-reviewed journal, the company said.
 

A version of this article originally appeared on Medscape.com.

The novel, orally administered calcitonin gene-related peptide (CGRP) antagonist atogepant has met the primary endpoint in a phase 3 trial for migraine prevention, AbbVie, the company developing the drug, has announced.

Top-line results from the ADVANCE trial, which evaluated atogepant 10, 30, and 60 mg, showed all three doses were associated with a significant reduction from baseline in mean monthly migraine days, compared with placebo.

There were also significant improvements in all six secondary endpoints with the two higher doses.

Data from the ADVANCE trial and a previous phase 2/3 trial will be the basis for regulatory submissions in the United States and other countries, AbbVie reported.

Decreased migraine days

The phase 3, multicenter, randomized, double-blind, placebo-controlled, parallel-group trial was designed to evaluate the efficacy, safety, and tolerability of oral atogepant for the prevention of migraine in those who experienced 4-14 migraine days per month.

A total of 910 patients were randomized to one of four treatment groups: 10 mg, 30 mg, or 60 mg of atogepant once daily or placebo. Efficacy analyses were based on the modified intent-to-treat population of 873 patients.

The primary endpoint was change from baseline in mean monthly migraine days during the 12-week treatment period. All atogepant dose groups met the primary endpoint and demonstrated significantly greater decreases in mean monthly migraine days, compared with placebo.

Mean monthly migraine days were reduced by 3.69 days with the 10-mg dose, 3.86 days with the 30-mg dose, and 4.2 days with the 60-mg dose of atogepant, compared with a reduction of 2.48 migraine days in the placebo group (P < .0001, all dose groups vs. placebo).

A key secondary endpoint measured the proportion of patients who achieved at least a 50% reduction in mean monthly migraine days over 12 weeks. This outcome occurred in 55.6% of the 10-mg atogepant group, 58.7% of the 30-mg group, and 60.8% of the 60-mg group, compared with 29% of the placebo group (P < .0001, all dose groups vs. placebo).

Significant improvements

Additional secondary endpoints measured during the 12-week treatment period included change from baseline in mean monthly headache days, mean monthly acute–medication use days, mean monthly performance of daily activities and physical impairment domain scores on the Activity Impairment in Migraine-Diary, and change from baseline in the Migraine-Specific Quality of Life Questionnaire Role Function-Restrictive domain score at week 12. Treatment with the 30-mg and 60-mg doses resulted in significant improvements in all secondary endpoints, and treatment with the 10-mg dose resulted in significant improvements in four of the six secondary endpoints.

No new safety risks were observed when compared with the safety profile of atogepant observed in previous trials, AbbVie said. Serious adverse events occurred in 0.9% of patients in the atogepant 10-mg group versus 0.9% of patients in the placebo group. No patients in the atogepant 30-mg or 60-mg groups experienced a serious adverse event. The most common adverse events (reported in at least 5% of patients and at least one atogepant group and at a rate greater than placebo), across all doses versus placebo, were constipation (6.9%-7.7% vs. 0.5%), nausea (4.4%-6.1% vs. 1.8%), and upper respiratory tract infection (3.9%-5.7% vs. 4.5%).

Most cases of constipation, nausea, and upper respiratory tract infection were mild or moderate in severity and did not lead to discontinuation. There were no hepatic safety issues identified in the trial.

Full data results will be presented at an upcoming medical congress and/or published in a peer-reviewed journal, the company said.
 

A version of this article originally appeared on Medscape.com.

Migraine can significantly influence a woman’s decision to have children, new research shows. Results from a multicenter study of more than 600 women showed that, among participants with migraine, those who were younger, had menstrual migraine, or had chronic migraine were more likely to decide to not become pregnant.

Although women with migraine who avoided pregnancy believed their migraines would worsen during pregnancy or make their pregnancy difficult, previous observational research indicates that migraine often improves during pregnancy.

“Women who avoided pregnancy due to migraine were most concerned that migraine would make raising a child difficult, that the migraine medications they take would have a negative impact on their child’s development, and that their migraine pattern would worsen during or just after pregnancy,” said study investigator Ryotaro Ishii, MD, PhD, a visiting scientist at Mayo Clinic in Phoenix, Arizona.

The findings were presented at the virtual annual meeting of the American Headache Society.
 

Plans for the future

There is a paucity of research on the effects of migraine on pregnancy planning, the researchers noted. The few studies that have investigated this issue have focused on women’s previous family planning decisions and experience rather than on plans for the future, the researchers noted.

To evaluate how migraine in women influences pregnancy planning, the investigators analyzed data from the American Registry for Migraine Research (ARMR). The registry, which was established by the American Migraine Foundation, collects clinical data about individuals with migraine and other headache disorders from multiple centers.

Participants eligible for the current analysis were women who had been diagnosed with migraine on the basis of the International Classification of Headache Disorders–3 criteria. All completed the ARMR questionnaire between February 2016 and September 2019. The investigators excluded patients with trigeminal autonomic cephalalgia, secondary headache, painful cranial neuropathies, other facial pain, and other headaches.

They identified 895 eligible women with migraine. Of these, 607 completed the pregnancy question. Among those participants, 121 women (19.9%) reported that migraine was a factor in their decision to not become pregnant. Of this group, 70 (11.5%) reported that migraine was a “significant” factor in deciding to not have children, and 8.4% said it was “somewhat” of a factor. The remainder of the cohort (479) reported that migraine had no influence on their pregnancy plans.

There were no between-group differences by race, marital status, employment, or income. This finding suggests that sociodemographic differences “have less impact on pregnancy planning than migraine-specific characteristics like headache frequency and experience with having migraine attacks triggered by menstruation,” Dr. Ishii said.
 

“Substantial burden”

Not surprisingly, women who avoided pregnancy had fewer children than the rest of the sample. About 60% of those who made the decision to not become pregnant had no children, and 72% had not been pregnant since they began experiencing migraine.

Compared with women who reported that migraine had no influence on their pregnancy plans, those who avoided pregnancy were more likely to have chronic migraine at 81.8% versus 70.2%. They were also more likely to have menstrual migraine at 4.1% versus 1%. In addition, women who decided to not have children because of migraine were significantly younger at an average age of 37.5 versus 47.2 years.

The number of days with headache per 3-month interval was 53.9 among women who avoided pregnancy versus 42.5 among the other women. The Migraine Disability Assessment score was also higher for women who avoided pregnancy (132.5) than for it was the other women (91.7), indicating more severe disability.

In addition, more of the women who avoided pregnancy had a history of depression (48.8%) compared with the other women (37.7%). The average score on the Patient Health Questionnaire–4 was higher among women who avoided pregnancy (4.0) than among other women (3.1), which indicates greater anxiety or depression. Among women who avoided pregnancy, 72.5% believed their migraine would worsen during pregnancy, and 68.3% believed that migraine would make pregnancy very difficult.

“Clinicians need to recognize that migraine often has a substantial burden on multiple aspects of life, including one’s plans for having children,” Dr. Ishii said.

“Clinicians should educate their patients who are considering pregnancy about the most likely course of migraine during pregnancy, migraine treatment during pregnancy, and the potential impacts of migraine and its treatment on pregnancy outcomes,” he added.
 

More education needed

Commenting on the study, Susan Hutchinson, MD, director of the Orange County Migraine and Headache Center, Irvine, California, said that not knowing how pregnancy is going to affect patients’ migraines can be “very scary” for women. In addition, patients often wonder what migraine treatments they can safely take once they do become pregnant, said Dr. Hutchinson, who was not involved in the research.

She noted that advantages of the ARMR data are that they are derived from a multicenter study and that migraine diagnoses were made by a headache specialist. A potential limitation of the study is that the population may not reflect outcomes of the millions of women who have migraine and become pregnant but never see a specialist.

“These findings show that more education is needed,” Dr. Hutchinson said.

Most women, especially those who have migraine without aura, note improvement with migraine during pregnancy, primarily because of the high, steady levels of estradiol, especially in the second and third trimesters, she said. In light of this, neurologists should reassure women that migraine is not a contraindication to pregnancy, she added.

There is also a need for additional research to assess how past experience with migraine and pregnancy influences a woman’s comfort level with additional pregnancies. Studies as to which treatments are safest for acute and preventive treatment of migraine during prepregnancy, pregnancy, and lactation are also needed, Dr. Hutchinson noted.

“If women knew they had treatment options that were evidence-based, they might be much more comfortable contemplating a pregnancy,” she said.

Dr. Ishii and Dr. Hutchinson have disclosed no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

Migraine can significantly influence a woman’s decision to have children, new research shows. Results from a multicenter study of more than 600 women showed that, among participants with migraine, those who were younger, had menstrual migraine, or had chronic migraine were more likely to decide to not become pregnant.

Although women with migraine who avoided pregnancy believed their migraines would worsen during pregnancy or make their pregnancy difficult, previous observational research indicates that migraine often improves during pregnancy.

“Women who avoided pregnancy due to migraine were most concerned that migraine would make raising a child difficult, that the migraine medications they take would have a negative impact on their child’s development, and that their migraine pattern would worsen during or just after pregnancy,” said study investigator Ryotaro Ishii, MD, PhD, a visiting scientist at Mayo Clinic in Phoenix, Arizona.

The findings were presented at the virtual annual meeting of the American Headache Society.
 

Plans for the future

There is a paucity of research on the effects of migraine on pregnancy planning, the researchers noted. The few studies that have investigated this issue have focused on women’s previous family planning decisions and experience rather than on plans for the future, the researchers noted.

To evaluate how migraine in women influences pregnancy planning, the investigators analyzed data from the American Registry for Migraine Research (ARMR). The registry, which was established by the American Migraine Foundation, collects clinical data about individuals with migraine and other headache disorders from multiple centers.

Participants eligible for the current analysis were women who had been diagnosed with migraine on the basis of the International Classification of Headache Disorders–3 criteria. All completed the ARMR questionnaire between February 2016 and September 2019. The investigators excluded patients with trigeminal autonomic cephalalgia, secondary headache, painful cranial neuropathies, other facial pain, and other headaches.

They identified 895 eligible women with migraine. Of these, 607 completed the pregnancy question. Among those participants, 121 women (19.9%) reported that migraine was a factor in their decision to not become pregnant. Of this group, 70 (11.5%) reported that migraine was a “significant” factor in deciding to not have children, and 8.4% said it was “somewhat” of a factor. The remainder of the cohort (479) reported that migraine had no influence on their pregnancy plans.

There were no between-group differences by race, marital status, employment, or income. This finding suggests that sociodemographic differences “have less impact on pregnancy planning than migraine-specific characteristics like headache frequency and experience with having migraine attacks triggered by menstruation,” Dr. Ishii said.
 

“Substantial burden”

Not surprisingly, women who avoided pregnancy had fewer children than the rest of the sample. About 60% of those who made the decision to not become pregnant had no children, and 72% had not been pregnant since they began experiencing migraine.

Compared with women who reported that migraine had no influence on their pregnancy plans, those who avoided pregnancy were more likely to have chronic migraine at 81.8% versus 70.2%. They were also more likely to have menstrual migraine at 4.1% versus 1%. In addition, women who decided to not have children because of migraine were significantly younger at an average age of 37.5 versus 47.2 years.

The number of days with headache per 3-month interval was 53.9 among women who avoided pregnancy versus 42.5 among the other women. The Migraine Disability Assessment score was also higher for women who avoided pregnancy (132.5) than for it was the other women (91.7), indicating more severe disability.

In addition, more of the women who avoided pregnancy had a history of depression (48.8%) compared with the other women (37.7%). The average score on the Patient Health Questionnaire–4 was higher among women who avoided pregnancy (4.0) than among other women (3.1), which indicates greater anxiety or depression. Among women who avoided pregnancy, 72.5% believed their migraine would worsen during pregnancy, and 68.3% believed that migraine would make pregnancy very difficult.

“Clinicians need to recognize that migraine often has a substantial burden on multiple aspects of life, including one’s plans for having children,” Dr. Ishii said.

“Clinicians should educate their patients who are considering pregnancy about the most likely course of migraine during pregnancy, migraine treatment during pregnancy, and the potential impacts of migraine and its treatment on pregnancy outcomes,” he added.
 

More education needed

Commenting on the study, Susan Hutchinson, MD, director of the Orange County Migraine and Headache Center, Irvine, California, said that not knowing how pregnancy is going to affect patients’ migraines can be “very scary” for women. In addition, patients often wonder what migraine treatments they can safely take once they do become pregnant, said Dr. Hutchinson, who was not involved in the research.

She noted that advantages of the ARMR data are that they are derived from a multicenter study and that migraine diagnoses were made by a headache specialist. A potential limitation of the study is that the population may not reflect outcomes of the millions of women who have migraine and become pregnant but never see a specialist.

“These findings show that more education is needed,” Dr. Hutchinson said.

Most women, especially those who have migraine without aura, note improvement with migraine during pregnancy, primarily because of the high, steady levels of estradiol, especially in the second and third trimesters, she said. In light of this, neurologists should reassure women that migraine is not a contraindication to pregnancy, she added.

There is also a need for additional research to assess how past experience with migraine and pregnancy influences a woman’s comfort level with additional pregnancies. Studies as to which treatments are safest for acute and preventive treatment of migraine during prepregnancy, pregnancy, and lactation are also needed, Dr. Hutchinson noted.

“If women knew they had treatment options that were evidence-based, they might be much more comfortable contemplating a pregnancy,” she said.

Dr. Ishii and Dr. Hutchinson have disclosed no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

Migraine can significantly influence a woman’s decision to have children, new research shows. Results from a multicenter study of more than 600 women showed that, among participants with migraine, those who were younger, had menstrual migraine, or had chronic migraine were more likely to decide to not become pregnant.

Although women with migraine who avoided pregnancy believed their migraines would worsen during pregnancy or make their pregnancy difficult, previous observational research indicates that migraine often improves during pregnancy.

“Women who avoided pregnancy due to migraine were most concerned that migraine would make raising a child difficult, that the migraine medications they take would have a negative impact on their child’s development, and that their migraine pattern would worsen during or just after pregnancy,” said study investigator Ryotaro Ishii, MD, PhD, a visiting scientist at Mayo Clinic in Phoenix, Arizona.

The findings were presented at the virtual annual meeting of the American Headache Society.
 

Plans for the future

There is a paucity of research on the effects of migraine on pregnancy planning, the researchers noted. The few studies that have investigated this issue have focused on women’s previous family planning decisions and experience rather than on plans for the future, the researchers noted.

To evaluate how migraine in women influences pregnancy planning, the investigators analyzed data from the American Registry for Migraine Research (ARMR). The registry, which was established by the American Migraine Foundation, collects clinical data about individuals with migraine and other headache disorders from multiple centers.

Participants eligible for the current analysis were women who had been diagnosed with migraine on the basis of the International Classification of Headache Disorders–3 criteria. All completed the ARMR questionnaire between February 2016 and September 2019. The investigators excluded patients with trigeminal autonomic cephalalgia, secondary headache, painful cranial neuropathies, other facial pain, and other headaches.

They identified 895 eligible women with migraine. Of these, 607 completed the pregnancy question. Among those participants, 121 women (19.9%) reported that migraine was a factor in their decision to not become pregnant. Of this group, 70 (11.5%) reported that migraine was a “significant” factor in deciding to not have children, and 8.4% said it was “somewhat” of a factor. The remainder of the cohort (479) reported that migraine had no influence on their pregnancy plans.

There were no between-group differences by race, marital status, employment, or income. This finding suggests that sociodemographic differences “have less impact on pregnancy planning than migraine-specific characteristics like headache frequency and experience with having migraine attacks triggered by menstruation,” Dr. Ishii said.
 

“Substantial burden”

Not surprisingly, women who avoided pregnancy had fewer children than the rest of the sample. About 60% of those who made the decision to not become pregnant had no children, and 72% had not been pregnant since they began experiencing migraine.

Compared with women who reported that migraine had no influence on their pregnancy plans, those who avoided pregnancy were more likely to have chronic migraine at 81.8% versus 70.2%. They were also more likely to have menstrual migraine at 4.1% versus 1%. In addition, women who decided to not have children because of migraine were significantly younger at an average age of 37.5 versus 47.2 years.

The number of days with headache per 3-month interval was 53.9 among women who avoided pregnancy versus 42.5 among the other women. The Migraine Disability Assessment score was also higher for women who avoided pregnancy (132.5) than for it was the other women (91.7), indicating more severe disability.

In addition, more of the women who avoided pregnancy had a history of depression (48.8%) compared with the other women (37.7%). The average score on the Patient Health Questionnaire–4 was higher among women who avoided pregnancy (4.0) than among other women (3.1), which indicates greater anxiety or depression. Among women who avoided pregnancy, 72.5% believed their migraine would worsen during pregnancy, and 68.3% believed that migraine would make pregnancy very difficult.

“Clinicians need to recognize that migraine often has a substantial burden on multiple aspects of life, including one’s plans for having children,” Dr. Ishii said.

“Clinicians should educate their patients who are considering pregnancy about the most likely course of migraine during pregnancy, migraine treatment during pregnancy, and the potential impacts of migraine and its treatment on pregnancy outcomes,” he added.
 

More education needed

Commenting on the study, Susan Hutchinson, MD, director of the Orange County Migraine and Headache Center, Irvine, California, said that not knowing how pregnancy is going to affect patients’ migraines can be “very scary” for women. In addition, patients often wonder what migraine treatments they can safely take once they do become pregnant, said Dr. Hutchinson, who was not involved in the research.

She noted that advantages of the ARMR data are that they are derived from a multicenter study and that migraine diagnoses were made by a headache specialist. A potential limitation of the study is that the population may not reflect outcomes of the millions of women who have migraine and become pregnant but never see a specialist.

“These findings show that more education is needed,” Dr. Hutchinson said.

Most women, especially those who have migraine without aura, note improvement with migraine during pregnancy, primarily because of the high, steady levels of estradiol, especially in the second and third trimesters, she said. In light of this, neurologists should reassure women that migraine is not a contraindication to pregnancy, she added.

There is also a need for additional research to assess how past experience with migraine and pregnancy influences a woman’s comfort level with additional pregnancies. Studies as to which treatments are safest for acute and preventive treatment of migraine during prepregnancy, pregnancy, and lactation are also needed, Dr. Hutchinson noted.

“If women knew they had treatment options that were evidence-based, they might be much more comfortable contemplating a pregnancy,” she said.

Dr. Ishii and Dr. Hutchinson have disclosed no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

A new visualization tool aims to streamline patient-clinician communication about risk factors for progression from episodic to chronic migraines. The tool is still in the prototype stage, but it could eventually synthesize patient responses to an integrated questionnaire and produce a chart illustrating where the patient stands with respect to a range of modifiable risk factors, including depression, medication overuse, insomnia, and body mass index, among others.

A few such tools exist for other conditions, such as stroke and risk of developing chronic diseases. Existing migraine visualization models focus only on individual risk factors, but they are capable of much more. “Visualization tools can effectively communicate a huge amount of clinical information,” said lead author Ami Cuneo, MD, who is a headache fellow at the University of Washington, Seattle, in an interview. Dr. Cuneo presented a poster describing the concept at the virtual annual meeting of the American Headache Society.
 

A picture is worth a thousand words

Dr. Cuneo’s background is well suited to the effort: Before entering medicine, she was a documentary producer. “I have a lot of interest in the patient story and history,” she added. She also believes that the tool could improve patient-provider relationships. In rushed sessions, patients may not feel heard. Patients gain a therapeutic benefit from the belief that their provider is listening to them and listening to their story. Visualization tools could promote that if the provider can quickly identify key elements of the patient’s condition. “A lot of headache patients can have a complex picture,” said Dr. Cuneo.

Physicians must see patients in short appointment periods, making it difficult to communicate all of the risk factors and behavioral characteristics that can contribute to risk of progression. “If you have a patient and you’re able to look at a visualization tool quickly and say: ‘Okay, my patient really is having insomnia and sleep issues,’ you can focus the session talking about sleep, cognitive-behavioral therapy for insomnia, and all the things we can help patients with,” said Dr. Cuneo.

The prototype visualization tool uses a color-coded wheel divided into pie slices, each representing a clinical characteristic or modifiable risk factor. In the proposed tool presented in the poster, these included depression, anxiety, functional disability, insomnia, nausea, headache frequency, medication overuse, optimization of abortive medication use, nontherapeutic diet, limited exercise, and body mass index range. The circle also contains colored concentric circles, ranging from red to green, and a small filled circle represents the patient’s status in each category as ranked using the integrated questionnaire. A line connects the circles in each pie, revealing the patient’s overall status.

The visual cue allows both the physician and patient to quickly assess these factors and see them in relationship to one another. Verbally communicating each factor is time consuming and harder for the patient to take in, according to Dr. Cuneo. “The provider can just look at it and see the areas to focus questions on to try to improve care. So it’s a way I’m hopeful that we can help target visits and improve patient-provider communication without extending visit time.”

A key challenge for the project will be choosing and consolidating scales so that the patient isn’t burdened with too many questions in advance of the appointment. The team will draw from existing scales and then create their own and validate it. “The questions will have to be vetted with patients through focus groups, and then the software platform [will have to be developed] so that patients can complete the survey online. Then we have to test it to see if providers and patients feel this is something that’s helpful in the clinical practice,” said Dr. Cuneo.
 

Will it change behavior?

If successful, the tool would be a welcome addition, according to Andrew Charles, MD, who was asked to comment on the work. “Epidemiological studies have identified these risk factors, but we haven’t had a way of operationalizing a strategy to reduce them systematically, so having some sort of tool that visualizes not just one but multiple risk factors is something I think could be helpful to address those factors more aggressively. The real question would be, if you put it in the hands of practitioners and patients, will they really be able to easily implement it and will it change behavior,” said Dr. Charles, who is a professor of neurology and director of the Goldberg Migraine Program at the University of California, Los Angeles.

The study received no funding. Dr. Cuneo and Dr. Charles have no relevant financial disclosures.

SOURCE; Cuneo A et al. AHS 2020, Abstract 273715.

A new visualization tool aims to streamline patient-clinician communication about risk factors for progression from episodic to chronic migraines. The tool is still in the prototype stage, but it could eventually synthesize patient responses to an integrated questionnaire and produce a chart illustrating where the patient stands with respect to a range of modifiable risk factors, including depression, medication overuse, insomnia, and body mass index, among others.

A few such tools exist for other conditions, such as stroke and risk of developing chronic diseases. Existing migraine visualization models focus only on individual risk factors, but they are capable of much more. “Visualization tools can effectively communicate a huge amount of clinical information,” said lead author Ami Cuneo, MD, who is a headache fellow at the University of Washington, Seattle, in an interview. Dr. Cuneo presented a poster describing the concept at the virtual annual meeting of the American Headache Society.
 

A picture is worth a thousand words

Dr. Cuneo’s background is well suited to the effort: Before entering medicine, she was a documentary producer. “I have a lot of interest in the patient story and history,” she added. She also believes that the tool could improve patient-provider relationships. In rushed sessions, patients may not feel heard. Patients gain a therapeutic benefit from the belief that their provider is listening to them and listening to their story. Visualization tools could promote that if the provider can quickly identify key elements of the patient’s condition. “A lot of headache patients can have a complex picture,” said Dr. Cuneo.

Physicians must see patients in short appointment periods, making it difficult to communicate all of the risk factors and behavioral characteristics that can contribute to risk of progression. “If you have a patient and you’re able to look at a visualization tool quickly and say: ‘Okay, my patient really is having insomnia and sleep issues,’ you can focus the session talking about sleep, cognitive-behavioral therapy for insomnia, and all the things we can help patients with,” said Dr. Cuneo.

The prototype visualization tool uses a color-coded wheel divided into pie slices, each representing a clinical characteristic or modifiable risk factor. In the proposed tool presented in the poster, these included depression, anxiety, functional disability, insomnia, nausea, headache frequency, medication overuse, optimization of abortive medication use, nontherapeutic diet, limited exercise, and body mass index range. The circle also contains colored concentric circles, ranging from red to green, and a small filled circle represents the patient’s status in each category as ranked using the integrated questionnaire. A line connects the circles in each pie, revealing the patient’s overall status.

The visual cue allows both the physician and patient to quickly assess these factors and see them in relationship to one another. Verbally communicating each factor is time consuming and harder for the patient to take in, according to Dr. Cuneo. “The provider can just look at it and see the areas to focus questions on to try to improve care. So it’s a way I’m hopeful that we can help target visits and improve patient-provider communication without extending visit time.”

A key challenge for the project will be choosing and consolidating scales so that the patient isn’t burdened with too many questions in advance of the appointment. The team will draw from existing scales and then create their own and validate it. “The questions will have to be vetted with patients through focus groups, and then the software platform [will have to be developed] so that patients can complete the survey online. Then we have to test it to see if providers and patients feel this is something that’s helpful in the clinical practice,” said Dr. Cuneo.
 

Will it change behavior?

If successful, the tool would be a welcome addition, according to Andrew Charles, MD, who was asked to comment on the work. “Epidemiological studies have identified these risk factors, but we haven’t had a way of operationalizing a strategy to reduce them systematically, so having some sort of tool that visualizes not just one but multiple risk factors is something I think could be helpful to address those factors more aggressively. The real question would be, if you put it in the hands of practitioners and patients, will they really be able to easily implement it and will it change behavior,” said Dr. Charles, who is a professor of neurology and director of the Goldberg Migraine Program at the University of California, Los Angeles.

The study received no funding. Dr. Cuneo and Dr. Charles have no relevant financial disclosures.

SOURCE; Cuneo A et al. AHS 2020, Abstract 273715.

A new visualization tool aims to streamline patient-clinician communication about risk factors for progression from episodic to chronic migraines. The tool is still in the prototype stage, but it could eventually synthesize patient responses to an integrated questionnaire and produce a chart illustrating where the patient stands with respect to a range of modifiable risk factors, including depression, medication overuse, insomnia, and body mass index, among others.

A few such tools exist for other conditions, such as stroke and risk of developing chronic diseases. Existing migraine visualization models focus only on individual risk factors, but they are capable of much more. “Visualization tools can effectively communicate a huge amount of clinical information,” said lead author Ami Cuneo, MD, who is a headache fellow at the University of Washington, Seattle, in an interview. Dr. Cuneo presented a poster describing the concept at the virtual annual meeting of the American Headache Society.
 

A picture is worth a thousand words

Dr. Cuneo’s background is well suited to the effort: Before entering medicine, she was a documentary producer. “I have a lot of interest in the patient story and history,” she added. She also believes that the tool could improve patient-provider relationships. In rushed sessions, patients may not feel heard. Patients gain a therapeutic benefit from the belief that their provider is listening to them and listening to their story. Visualization tools could promote that if the provider can quickly identify key elements of the patient’s condition. “A lot of headache patients can have a complex picture,” said Dr. Cuneo.

Physicians must see patients in short appointment periods, making it difficult to communicate all of the risk factors and behavioral characteristics that can contribute to risk of progression. “If you have a patient and you’re able to look at a visualization tool quickly and say: ‘Okay, my patient really is having insomnia and sleep issues,’ you can focus the session talking about sleep, cognitive-behavioral therapy for insomnia, and all the things we can help patients with,” said Dr. Cuneo.

The prototype visualization tool uses a color-coded wheel divided into pie slices, each representing a clinical characteristic or modifiable risk factor. In the proposed tool presented in the poster, these included depression, anxiety, functional disability, insomnia, nausea, headache frequency, medication overuse, optimization of abortive medication use, nontherapeutic diet, limited exercise, and body mass index range. The circle also contains colored concentric circles, ranging from red to green, and a small filled circle represents the patient’s status in each category as ranked using the integrated questionnaire. A line connects the circles in each pie, revealing the patient’s overall status.

The visual cue allows both the physician and patient to quickly assess these factors and see them in relationship to one another. Verbally communicating each factor is time consuming and harder for the patient to take in, according to Dr. Cuneo. “The provider can just look at it and see the areas to focus questions on to try to improve care. So it’s a way I’m hopeful that we can help target visits and improve patient-provider communication without extending visit time.”

A key challenge for the project will be choosing and consolidating scales so that the patient isn’t burdened with too many questions in advance of the appointment. The team will draw from existing scales and then create their own and validate it. “The questions will have to be vetted with patients through focus groups, and then the software platform [will have to be developed] so that patients can complete the survey online. Then we have to test it to see if providers and patients feel this is something that’s helpful in the clinical practice,” said Dr. Cuneo.
 

Will it change behavior?

If successful, the tool would be a welcome addition, according to Andrew Charles, MD, who was asked to comment on the work. “Epidemiological studies have identified these risk factors, but we haven’t had a way of operationalizing a strategy to reduce them systematically, so having some sort of tool that visualizes not just one but multiple risk factors is something I think could be helpful to address those factors more aggressively. The real question would be, if you put it in the hands of practitioners and patients, will they really be able to easily implement it and will it change behavior,” said Dr. Charles, who is a professor of neurology and director of the Goldberg Migraine Program at the University of California, Los Angeles.

The study received no funding. Dr. Cuneo and Dr. Charles have no relevant financial disclosures.

SOURCE; Cuneo A et al. AHS 2020, Abstract 273715.