Spondyloarthropathies

How best to define axial spondyloarthritis (axSpA) flares in practice remains the subject of some debate as evidenced by the discussion that followed an abstract presentation at the 12th International Congress on Spondyloarthritides.

It’s an important topic, said Maxime Breban, MD, PhD, of Ambroise Paré Hospital in Paris, as flares can adversely affect patient outcomes. The absence of flares may also a useful measure of how well a patient is responding to treatment in clinical trials and whether a treatment can be tapered.

“There have been many ways to define flares in the past and there is no consensus,” he observed.

Although the Assessment of Spondyloarthritis International Society (ASAS) devised 12 preliminary definitions of flare in 2016, “these were not that good when we moved to patients,” Dr. Breban suggested.

The ASAS definitions were based on patient vignettes, he explained, and used a combination of variables from the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), a visual analog scale (VAS) of pain, and the Ankylosing Spondylitis Disease Activity Score based on C-reactive protein (ASDAS-CRP).

The study that Dr. Breban presented looked at the performance of the ASAS preliminary definitions of axSpA flares in a real-life patient population, as well as prospectively determining how variations in BASDAI and VAS pain were associated with patient-perceived flares of disease.

A total of 99 patients took part in the study, recruited through a secure e-health platform called SPONDY+. Once a week, patients completed the BASDAI questionnaire and the pain VAS, and stated whether their disease had flared in the past week.

Receiver operating characteristic (ROC) curves were calculated to see how well the BASDAI and pain VAS identified patients who were experiencing a flare or had a recently resolved flare of axSpA.

Dr. Breban reported that variation in the BASDAI “appears a suitable variable to monitor the occurrence and resolution of patient-reported flare in axial spondylarthritis.”

In predicting a flare, the area under the curve (AUC) was significantly higher for the change in BASDAI than for the change in pain VAS, at a respective 0.81 and 0.77 (P = .01). However, both variables were similarly accurate in predicting the resolution of a flare, with respective AUCs of 0.78 and 0.80 (P = .3).

A 0.22-point increase in BASDAI was reported to be the best balance between sensitivity (70%) and specificity (79%) for a flare. However, this is “outside of what is possible within a test–retest situation,” Désirée van der Heijde, MD, PhD, of Leiden (the Netherlands) University Medical Center, said during discussion.

Dr. van der Heijde told Dr. Breban: “I understand that that comes out of your data, that that’s the best combination for sensitivity and specificity, but the next step is to decide if that makes sense.”

The ROC curves that Dr. Breban presented showed the range of sensitivities and specificities that could be achieved. If the specificity was increased to be 90% or higher, the specificity fell to 55%, with the change in BASDAI being an increase of 0.8 points. Conversely, bringing the sensitivity above 90% meant the specificity dropped to 39% and the change in BASDAI was a decrease of 0.1 point.

“So that means you can choose whatever you want as a cutoff,” Dr. Breban said. It depends on what you are aiming to do. “If you want to identify a flare, you can increase sensitivity, or specificity, according to what your purpose is,” he suggested.

“The next step, of course, is what to choose as a flare. Then it depends on how you want to use a flare if you want to use a flare to change the treatment,” agreed Dr. van der Heijde. “That was why, in the ASAS group, it was decided to have a high specificity so that you are not changing treatment all the time.”

In the data that Dr. Breban presented, the ASAS preliminary definitions were highly specific but lacked sensitivity. None of the ASAS definitions yielded sensitivity values higher than 37%, whereas specificity was higher than 95% for all of them.

The study’s design did not allow researchers to test the ASDAS-CRP as a definition of flare in its real-world patient sample. Thus, it is looking only at the patient’s perspective on flare, and there is a “huge discrepancy” between patient and physician-reported disease activity, Dr. van der Heijde noted. “So, I think before using your data to really choose the flare definition, I think we need to take it all into account.”

Maxime Dougados, MD, PhD, of Cochin Hospital in Paris, who has been “deeply involved in the elaboration of the definition of flare” added his thoughts: “Flare means for me, not a status, but a change,” he observed.

But if the aim of treating people with axSpA is to achieve a good or acceptable state of health, he questioned whether work should be continued to define the concept of a flare.

The definition of a flare was conceived for use in clinical trials mainly, Dr. van der Heijde noted. It helped to assess how changes in treatment might affect the outcomes of patients. In clinical practice, especially now with treat-to-target gaining more and more traction in axSpA, she agreed that perhaps the goal should be to focus more on the health status of patients.

Dr. Breban acknowledged that the SPONDY+ platform has been developed by bepatient with support from Merck Sharp & Dohme. No other disclosures were made.

How best to define axial spondyloarthritis (axSpA) flares in practice remains the subject of some debate as evidenced by the discussion that followed an abstract presentation at the 12th International Congress on Spondyloarthritides.

It’s an important topic, said Maxime Breban, MD, PhD, of Ambroise Paré Hospital in Paris, as flares can adversely affect patient outcomes. The absence of flares may also a useful measure of how well a patient is responding to treatment in clinical trials and whether a treatment can be tapered.

“There have been many ways to define flares in the past and there is no consensus,” he observed.

Although the Assessment of Spondyloarthritis International Society (ASAS) devised 12 preliminary definitions of flare in 2016, “these were not that good when we moved to patients,” Dr. Breban suggested.

The ASAS definitions were based on patient vignettes, he explained, and used a combination of variables from the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), a visual analog scale (VAS) of pain, and the Ankylosing Spondylitis Disease Activity Score based on C-reactive protein (ASDAS-CRP).

The study that Dr. Breban presented looked at the performance of the ASAS preliminary definitions of axSpA flares in a real-life patient population, as well as prospectively determining how variations in BASDAI and VAS pain were associated with patient-perceived flares of disease.

A total of 99 patients took part in the study, recruited through a secure e-health platform called SPONDY+. Once a week, patients completed the BASDAI questionnaire and the pain VAS, and stated whether their disease had flared in the past week.

Receiver operating characteristic (ROC) curves were calculated to see how well the BASDAI and pain VAS identified patients who were experiencing a flare or had a recently resolved flare of axSpA.

Dr. Breban reported that variation in the BASDAI “appears a suitable variable to monitor the occurrence and resolution of patient-reported flare in axial spondylarthritis.”

In predicting a flare, the area under the curve (AUC) was significantly higher for the change in BASDAI than for the change in pain VAS, at a respective 0.81 and 0.77 (P = .01). However, both variables were similarly accurate in predicting the resolution of a flare, with respective AUCs of 0.78 and 0.80 (P = .3).

A 0.22-point increase in BASDAI was reported to be the best balance between sensitivity (70%) and specificity (79%) for a flare. However, this is “outside of what is possible within a test–retest situation,” Désirée van der Heijde, MD, PhD, of Leiden (the Netherlands) University Medical Center, said during discussion.

Dr. van der Heijde told Dr. Breban: “I understand that that comes out of your data, that that’s the best combination for sensitivity and specificity, but the next step is to decide if that makes sense.”

The ROC curves that Dr. Breban presented showed the range of sensitivities and specificities that could be achieved. If the specificity was increased to be 90% or higher, the specificity fell to 55%, with the change in BASDAI being an increase of 0.8 points. Conversely, bringing the sensitivity above 90% meant the specificity dropped to 39% and the change in BASDAI was a decrease of 0.1 point.

“So that means you can choose whatever you want as a cutoff,” Dr. Breban said. It depends on what you are aiming to do. “If you want to identify a flare, you can increase sensitivity, or specificity, according to what your purpose is,” he suggested.

“The next step, of course, is what to choose as a flare. Then it depends on how you want to use a flare if you want to use a flare to change the treatment,” agreed Dr. van der Heijde. “That was why, in the ASAS group, it was decided to have a high specificity so that you are not changing treatment all the time.”

In the data that Dr. Breban presented, the ASAS preliminary definitions were highly specific but lacked sensitivity. None of the ASAS definitions yielded sensitivity values higher than 37%, whereas specificity was higher than 95% for all of them.

The study’s design did not allow researchers to test the ASDAS-CRP as a definition of flare in its real-world patient sample. Thus, it is looking only at the patient’s perspective on flare, and there is a “huge discrepancy” between patient and physician-reported disease activity, Dr. van der Heijde noted. “So, I think before using your data to really choose the flare definition, I think we need to take it all into account.”

Maxime Dougados, MD, PhD, of Cochin Hospital in Paris, who has been “deeply involved in the elaboration of the definition of flare” added his thoughts: “Flare means for me, not a status, but a change,” he observed.

But if the aim of treating people with axSpA is to achieve a good or acceptable state of health, he questioned whether work should be continued to define the concept of a flare.

The definition of a flare was conceived for use in clinical trials mainly, Dr. van der Heijde noted. It helped to assess how changes in treatment might affect the outcomes of patients. In clinical practice, especially now with treat-to-target gaining more and more traction in axSpA, she agreed that perhaps the goal should be to focus more on the health status of patients.

Dr. Breban acknowledged that the SPONDY+ platform has been developed by bepatient with support from Merck Sharp & Dohme. No other disclosures were made.

How best to define axial spondyloarthritis (axSpA) flares in practice remains the subject of some debate as evidenced by the discussion that followed an abstract presentation at the 12th International Congress on Spondyloarthritides.

It’s an important topic, said Maxime Breban, MD, PhD, of Ambroise Paré Hospital in Paris, as flares can adversely affect patient outcomes. The absence of flares may also a useful measure of how well a patient is responding to treatment in clinical trials and whether a treatment can be tapered.

“There have been many ways to define flares in the past and there is no consensus,” he observed.

Although the Assessment of Spondyloarthritis International Society (ASAS) devised 12 preliminary definitions of flare in 2016, “these were not that good when we moved to patients,” Dr. Breban suggested.

The ASAS definitions were based on patient vignettes, he explained, and used a combination of variables from the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), a visual analog scale (VAS) of pain, and the Ankylosing Spondylitis Disease Activity Score based on C-reactive protein (ASDAS-CRP).

The study that Dr. Breban presented looked at the performance of the ASAS preliminary definitions of axSpA flares in a real-life patient population, as well as prospectively determining how variations in BASDAI and VAS pain were associated with patient-perceived flares of disease.

A total of 99 patients took part in the study, recruited through a secure e-health platform called SPONDY+. Once a week, patients completed the BASDAI questionnaire and the pain VAS, and stated whether their disease had flared in the past week.

Receiver operating characteristic (ROC) curves were calculated to see how well the BASDAI and pain VAS identified patients who were experiencing a flare or had a recently resolved flare of axSpA.

Dr. Breban reported that variation in the BASDAI “appears a suitable variable to monitor the occurrence and resolution of patient-reported flare in axial spondylarthritis.”

In predicting a flare, the area under the curve (AUC) was significantly higher for the change in BASDAI than for the change in pain VAS, at a respective 0.81 and 0.77 (P = .01). However, both variables were similarly accurate in predicting the resolution of a flare, with respective AUCs of 0.78 and 0.80 (P = .3).

A 0.22-point increase in BASDAI was reported to be the best balance between sensitivity (70%) and specificity (79%) for a flare. However, this is “outside of what is possible within a test–retest situation,” Désirée van der Heijde, MD, PhD, of Leiden (the Netherlands) University Medical Center, said during discussion.

Dr. van der Heijde told Dr. Breban: “I understand that that comes out of your data, that that’s the best combination for sensitivity and specificity, but the next step is to decide if that makes sense.”

The ROC curves that Dr. Breban presented showed the range of sensitivities and specificities that could be achieved. If the specificity was increased to be 90% or higher, the specificity fell to 55%, with the change in BASDAI being an increase of 0.8 points. Conversely, bringing the sensitivity above 90% meant the specificity dropped to 39% and the change in BASDAI was a decrease of 0.1 point.

“So that means you can choose whatever you want as a cutoff,” Dr. Breban said. It depends on what you are aiming to do. “If you want to identify a flare, you can increase sensitivity, or specificity, according to what your purpose is,” he suggested.

“The next step, of course, is what to choose as a flare. Then it depends on how you want to use a flare if you want to use a flare to change the treatment,” agreed Dr. van der Heijde. “That was why, in the ASAS group, it was decided to have a high specificity so that you are not changing treatment all the time.”

In the data that Dr. Breban presented, the ASAS preliminary definitions were highly specific but lacked sensitivity. None of the ASAS definitions yielded sensitivity values higher than 37%, whereas specificity was higher than 95% for all of them.

The study’s design did not allow researchers to test the ASDAS-CRP as a definition of flare in its real-world patient sample. Thus, it is looking only at the patient’s perspective on flare, and there is a “huge discrepancy” between patient and physician-reported disease activity, Dr. van der Heijde noted. “So, I think before using your data to really choose the flare definition, I think we need to take it all into account.”

Maxime Dougados, MD, PhD, of Cochin Hospital in Paris, who has been “deeply involved in the elaboration of the definition of flare” added his thoughts: “Flare means for me, not a status, but a change,” he observed.

But if the aim of treating people with axSpA is to achieve a good or acceptable state of health, he questioned whether work should be continued to define the concept of a flare.

The definition of a flare was conceived for use in clinical trials mainly, Dr. van der Heijde noted. It helped to assess how changes in treatment might affect the outcomes of patients. In clinical practice, especially now with treat-to-target gaining more and more traction in axSpA, she agreed that perhaps the goal should be to focus more on the health status of patients.

Dr. Breban acknowledged that the SPONDY+ platform has been developed by bepatient with support from Merck Sharp & Dohme. No other disclosures were made.

Interleukin (IL)–23 inhibition may still have a role to play in the treatment of patients with axial spondyloarthritis (SpA), suggests research presented at the 12th International Congress on Spondyloarthritides.

There is a strong rationale for using IL-23 inhibitors in patients with axial SpA, and the IL-23/IL-17 axis has been proposed as a critical player in the pathophysiology of the disease. But around 2018 it became clear from randomized, controlled trials that IL-23 inhibition was ineffective at improving key clinical outcomes, at least in patients with axial disease.

Although the overall results of a systematic review and meta-analysis that was presented at the meeting corroborated the negative results seen with IL-23–inhibiting agents in clinical trials, there were some data showing benefits of the IL-23 inhibitor risankizumab on secondary outcomes in one trial.

To look at the available evidence, Louise Vanhoutte, a 2nd-year internal medicine student at University Hospitals Leuven (Belgium) worked under the guidance of Rik Lories, MD, PhD, head of the division of rheumatology at University Hospitals Leuven. Together they searched known databases for randomized, controlled trials investigating the use of IL-23 and IL-17 inhibitors for the treatment of adults with axial SpA or psoriatic arthritis. Studies could be either phase 2 or phase 3, but had to have included a placebo and used the ASAS40 (40% Improvement in Assessment of SpondyloArthritis International Society Response criteria), ASAS20, Bath Ankylosing Spondylitis Disease Activity Index, or SPARCC (Spondyloarthritis Research Consortium of Canada) index score to assess outcomes.

The systematic review whittled the number of clinical trials in the meta-analysis to 12, which concerned the use of ustekinumab, an IL-12/23 inhibitor, and risankizumab, along with two IL-17 inhibitors, ixekizumab and secukinumab. Data for the IL-23 inhibitors guselkumab and tildrakizumab were not available.

“To no surprise, Forest plots showed that there was a lack of efficacy for IL-23 agents in the treatment of axial spondyloarthritis and a superior efficacy for IL-17 inhibitors in the treatment of axial spondyloarthritis,” Ms. Vanhoutte reported.

The respective odds ratios for IL-23 and IL-17 inhibitors in getting patients to meet ASAS40 response criteria in comparison to baseline were 1.51 (95% confidence interval, 0.98-2.31) and 2.54 (95% CI, 2.02-3.19).

“Does this mean it is a dead-end street for all IL-23 inhibition?” she asked. Not necessarily. In the meta-analysis, not only did risankizumab lower the Ankylosing Spondylitis Disease Activity Score based on C-reactive protein (ASDAS-CRP) by a mean difference (MD) of –0.30 (95% CI, –0.41 to –0.19) from baseline values, but it also led to statistically significant reductions in SPARCC index score for the spine (MD, –3.10; 95% CI, –4.50 to –1.70) and high-sensitivity CRP (MD, –2.10; 95% CI, –2.56 to –1.64). The risankizumab findings might suggest there are potential disease-modifying properties for specifically targeting IL-23p19. There could also be a window of opportunity to use IL-23 inhibitors earlier.

“These are only results from one randomized, controlled trial in a small sample size where outcomes were reported as medians and interquartile ranges, so they had to be converted to means and standard deviations to have an odds ratio in the end,” she explained.

“Also, these were results from a radiographic axial spondyloarthritis population and not a nonradiographic axial spondyloarthritis population,” she added.

While that might limit the interpretation of the findings, “what we see here is both reduction in inflammation and reduction in structural disease progression as [measured] by SPARCC,” Ms. Vanhoutte said.

“Since IL-23 is an upstream molecule from IL-17 it’s probable that IL-23 is present in the prephase of the disease, in a prephase inflammation state,” she hypothesized. “This is especially interesting because there are very few randomized, controlled trials that examine therapeutic agents in nonradiographic axial spondyloarthritis,” she observed. Looking at IL-23 in radiographic, or established, disease therefore may not be as useful.

“I’m thinking you’re making actually a very important point for us,” commented Robert Landewé, MD, PhD, of Amsterdam University Medical Center.

“We are discussing whether or not IL-23 is important in inhibiting the disease activity of patients with axial spondyloarthritis, and we are surprised that it is not shown in RCTs.

“Why is it completely ineffective in axial spondyloarthritis? You show us that that is probably not the case,” Dr. Landewé suggested.

“What you make very clear here is that indeed there is some efficacy, and from a pathophysiological way of thinking it might be slightly different as compared with what most clinicians nowadays think.”

The study had no specific funding, and no disclosures were reported.

Interleukin (IL)–23 inhibition may still have a role to play in the treatment of patients with axial spondyloarthritis (SpA), suggests research presented at the 12th International Congress on Spondyloarthritides.

There is a strong rationale for using IL-23 inhibitors in patients with axial SpA, and the IL-23/IL-17 axis has been proposed as a critical player in the pathophysiology of the disease. But around 2018 it became clear from randomized, controlled trials that IL-23 inhibition was ineffective at improving key clinical outcomes, at least in patients with axial disease.

Although the overall results of a systematic review and meta-analysis that was presented at the meeting corroborated the negative results seen with IL-23–inhibiting agents in clinical trials, there were some data showing benefits of the IL-23 inhibitor risankizumab on secondary outcomes in one trial.

To look at the available evidence, Louise Vanhoutte, a 2nd-year internal medicine student at University Hospitals Leuven (Belgium) worked under the guidance of Rik Lories, MD, PhD, head of the division of rheumatology at University Hospitals Leuven. Together they searched known databases for randomized, controlled trials investigating the use of IL-23 and IL-17 inhibitors for the treatment of adults with axial SpA or psoriatic arthritis. Studies could be either phase 2 or phase 3, but had to have included a placebo and used the ASAS40 (40% Improvement in Assessment of SpondyloArthritis International Society Response criteria), ASAS20, Bath Ankylosing Spondylitis Disease Activity Index, or SPARCC (Spondyloarthritis Research Consortium of Canada) index score to assess outcomes.

The systematic review whittled the number of clinical trials in the meta-analysis to 12, which concerned the use of ustekinumab, an IL-12/23 inhibitor, and risankizumab, along with two IL-17 inhibitors, ixekizumab and secukinumab. Data for the IL-23 inhibitors guselkumab and tildrakizumab were not available.

“To no surprise, Forest plots showed that there was a lack of efficacy for IL-23 agents in the treatment of axial spondyloarthritis and a superior efficacy for IL-17 inhibitors in the treatment of axial spondyloarthritis,” Ms. Vanhoutte reported.

The respective odds ratios for IL-23 and IL-17 inhibitors in getting patients to meet ASAS40 response criteria in comparison to baseline were 1.51 (95% confidence interval, 0.98-2.31) and 2.54 (95% CI, 2.02-3.19).

“Does this mean it is a dead-end street for all IL-23 inhibition?” she asked. Not necessarily. In the meta-analysis, not only did risankizumab lower the Ankylosing Spondylitis Disease Activity Score based on C-reactive protein (ASDAS-CRP) by a mean difference (MD) of –0.30 (95% CI, –0.41 to –0.19) from baseline values, but it also led to statistically significant reductions in SPARCC index score for the spine (MD, –3.10; 95% CI, –4.50 to –1.70) and high-sensitivity CRP (MD, –2.10; 95% CI, –2.56 to –1.64). The risankizumab findings might suggest there are potential disease-modifying properties for specifically targeting IL-23p19. There could also be a window of opportunity to use IL-23 inhibitors earlier.

“These are only results from one randomized, controlled trial in a small sample size where outcomes were reported as medians and interquartile ranges, so they had to be converted to means and standard deviations to have an odds ratio in the end,” she explained.

“Also, these were results from a radiographic axial spondyloarthritis population and not a nonradiographic axial spondyloarthritis population,” she added.

While that might limit the interpretation of the findings, “what we see here is both reduction in inflammation and reduction in structural disease progression as [measured] by SPARCC,” Ms. Vanhoutte said.

“Since IL-23 is an upstream molecule from IL-17 it’s probable that IL-23 is present in the prephase of the disease, in a prephase inflammation state,” she hypothesized. “This is especially interesting because there are very few randomized, controlled trials that examine therapeutic agents in nonradiographic axial spondyloarthritis,” she observed. Looking at IL-23 in radiographic, or established, disease therefore may not be as useful.

“I’m thinking you’re making actually a very important point for us,” commented Robert Landewé, MD, PhD, of Amsterdam University Medical Center.

“We are discussing whether or not IL-23 is important in inhibiting the disease activity of patients with axial spondyloarthritis, and we are surprised that it is not shown in RCTs.

“Why is it completely ineffective in axial spondyloarthritis? You show us that that is probably not the case,” Dr. Landewé suggested.

“What you make very clear here is that indeed there is some efficacy, and from a pathophysiological way of thinking it might be slightly different as compared with what most clinicians nowadays think.”

The study had no specific funding, and no disclosures were reported.

Interleukin (IL)–23 inhibition may still have a role to play in the treatment of patients with axial spondyloarthritis (SpA), suggests research presented at the 12th International Congress on Spondyloarthritides.

There is a strong rationale for using IL-23 inhibitors in patients with axial SpA, and the IL-23/IL-17 axis has been proposed as a critical player in the pathophysiology of the disease. But around 2018 it became clear from randomized, controlled trials that IL-23 inhibition was ineffective at improving key clinical outcomes, at least in patients with axial disease.

Although the overall results of a systematic review and meta-analysis that was presented at the meeting corroborated the negative results seen with IL-23–inhibiting agents in clinical trials, there were some data showing benefits of the IL-23 inhibitor risankizumab on secondary outcomes in one trial.

To look at the available evidence, Louise Vanhoutte, a 2nd-year internal medicine student at University Hospitals Leuven (Belgium) worked under the guidance of Rik Lories, MD, PhD, head of the division of rheumatology at University Hospitals Leuven. Together they searched known databases for randomized, controlled trials investigating the use of IL-23 and IL-17 inhibitors for the treatment of adults with axial SpA or psoriatic arthritis. Studies could be either phase 2 or phase 3, but had to have included a placebo and used the ASAS40 (40% Improvement in Assessment of SpondyloArthritis International Society Response criteria), ASAS20, Bath Ankylosing Spondylitis Disease Activity Index, or SPARCC (Spondyloarthritis Research Consortium of Canada) index score to assess outcomes.

The systematic review whittled the number of clinical trials in the meta-analysis to 12, which concerned the use of ustekinumab, an IL-12/23 inhibitor, and risankizumab, along with two IL-17 inhibitors, ixekizumab and secukinumab. Data for the IL-23 inhibitors guselkumab and tildrakizumab were not available.

“To no surprise, Forest plots showed that there was a lack of efficacy for IL-23 agents in the treatment of axial spondyloarthritis and a superior efficacy for IL-17 inhibitors in the treatment of axial spondyloarthritis,” Ms. Vanhoutte reported.

The respective odds ratios for IL-23 and IL-17 inhibitors in getting patients to meet ASAS40 response criteria in comparison to baseline were 1.51 (95% confidence interval, 0.98-2.31) and 2.54 (95% CI, 2.02-3.19).

“Does this mean it is a dead-end street for all IL-23 inhibition?” she asked. Not necessarily. In the meta-analysis, not only did risankizumab lower the Ankylosing Spondylitis Disease Activity Score based on C-reactive protein (ASDAS-CRP) by a mean difference (MD) of –0.30 (95% CI, –0.41 to –0.19) from baseline values, but it also led to statistically significant reductions in SPARCC index score for the spine (MD, –3.10; 95% CI, –4.50 to –1.70) and high-sensitivity CRP (MD, –2.10; 95% CI, –2.56 to –1.64). The risankizumab findings might suggest there are potential disease-modifying properties for specifically targeting IL-23p19. There could also be a window of opportunity to use IL-23 inhibitors earlier.

“These are only results from one randomized, controlled trial in a small sample size where outcomes were reported as medians and interquartile ranges, so they had to be converted to means and standard deviations to have an odds ratio in the end,” she explained.

“Also, these were results from a radiographic axial spondyloarthritis population and not a nonradiographic axial spondyloarthritis population,” she added.

While that might limit the interpretation of the findings, “what we see here is both reduction in inflammation and reduction in structural disease progression as [measured] by SPARCC,” Ms. Vanhoutte said.

“Since IL-23 is an upstream molecule from IL-17 it’s probable that IL-23 is present in the prephase of the disease, in a prephase inflammation state,” she hypothesized. “This is especially interesting because there are very few randomized, controlled trials that examine therapeutic agents in nonradiographic axial spondyloarthritis,” she observed. Looking at IL-23 in radiographic, or established, disease therefore may not be as useful.

“I’m thinking you’re making actually a very important point for us,” commented Robert Landewé, MD, PhD, of Amsterdam University Medical Center.

“We are discussing whether or not IL-23 is important in inhibiting the disease activity of patients with axial spondyloarthritis, and we are surprised that it is not shown in RCTs.

“Why is it completely ineffective in axial spondyloarthritis? You show us that that is probably not the case,” Dr. Landewé suggested.

“What you make very clear here is that indeed there is some efficacy, and from a pathophysiological way of thinking it might be slightly different as compared with what most clinicians nowadays think.”

The study had no specific funding, and no disclosures were reported.

The European Medicines Agency’s Committee for Medicinal Products for Human Use recommended marketing authorization this week for two new adalimumab biosimilars, Hukyndra and Libmyris.

The biosimilars, both developed by STADA Arzneimittel AG, will be available as a 40-mg solution for injection in a pre-filled syringe and pre-filled pen and 80-mg solution for injection in a pre-filled syringe. Both biosimilars will have 15 indications:

• rheumatoid arthritis
• polyarticular juvenile idiopathic arthritis
• enthesitis-related arthritis
• ankylosing spondylitis
• axial spondyloarthritis without radiographic evidence of ankylosing spondylitis
• psoriatic arthritis
• chronic plaque psoriasis (adults and children)
• hidradenitis suppurativa
• Crohn’s disease (adults and children)
• ulcerative colitis (adults and children)
• uveitis (adults and children)

Data show that both Hukyndra and Libmyris are highly similar to the reference product Humira (adalimumab), a monoclonal antibody to tumor necrosis factor alpha, and have comparable quality, safety, and efficacy.

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

The European Medicines Agency’s Committee for Medicinal Products for Human Use recommended marketing authorization this week for two new adalimumab biosimilars, Hukyndra and Libmyris.

The biosimilars, both developed by STADA Arzneimittel AG, will be available as a 40-mg solution for injection in a pre-filled syringe and pre-filled pen and 80-mg solution for injection in a pre-filled syringe. Both biosimilars will have 15 indications:

• rheumatoid arthritis
• polyarticular juvenile idiopathic arthritis
• enthesitis-related arthritis
• ankylosing spondylitis
• axial spondyloarthritis without radiographic evidence of ankylosing spondylitis
• psoriatic arthritis
• chronic plaque psoriasis (adults and children)
• hidradenitis suppurativa
• Crohn’s disease (adults and children)
• ulcerative colitis (adults and children)
• uveitis (adults and children)

Data show that both Hukyndra and Libmyris are highly similar to the reference product Humira (adalimumab), a monoclonal antibody to tumor necrosis factor alpha, and have comparable quality, safety, and efficacy.

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

The European Medicines Agency’s Committee for Medicinal Products for Human Use recommended marketing authorization this week for two new adalimumab biosimilars, Hukyndra and Libmyris.

The biosimilars, both developed by STADA Arzneimittel AG, will be available as a 40-mg solution for injection in a pre-filled syringe and pre-filled pen and 80-mg solution for injection in a pre-filled syringe. Both biosimilars will have 15 indications:

• rheumatoid arthritis
• polyarticular juvenile idiopathic arthritis
• enthesitis-related arthritis
• ankylosing spondylitis
• axial spondyloarthritis without radiographic evidence of ankylosing spondylitis
• psoriatic arthritis
• chronic plaque psoriasis (adults and children)
• hidradenitis suppurativa
• Crohn’s disease (adults and children)
• ulcerative colitis (adults and children)
• uveitis (adults and children)

Data show that both Hukyndra and Libmyris are highly similar to the reference product Humira (adalimumab), a monoclonal antibody to tumor necrosis factor alpha, and have comparable quality, safety, and efficacy.

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

Better retention and remission rates with tumor necrosis factor inhibitors (TNFi) have been observed in patients with spondyloarthritis (SpA) who were also treated with a conventional synthetic disease-modifying antirheumatic drug (csDMARD) rather than monotherapy.

Data from the EuroSpA Research Collaboration have shown that 82% of patients who received TNFi and csDMARD cotherapy were still taking their TNFi at 1 year versus 79% of those who were taking the biologic alone (P < .001).

Combination therapy led to remission in 21.8%, compared with TNFi monotherapy at 19.5% (P < .0001), with rates of remission according to Ankylosing Spondylitis Disease Activity Score <1.3 (23.7% vs. 21.8%, P = .011) and Bath Ankylosing Spondylitis Disease Activity Index <2 (5.9% vs. 7.7%, P < .0001) also favoring the cotherapy group.

“We did see a considerable heterogeneity across the countries in this study, both in the use of csDMARD therapy and in the TNF [inhibitor] retention,” Michael J. Nissen, MBBS, FRACP, MD, a rheumatologist at the University of Geneva, said in an oral abstract presentation at the 12th International Congress on Spondyloarthritides.

“Overall, the 1-year TNFi retention was better with cotherapy, particularly in countries in the Scandinavian region and Switzerland,” Dr. Nissen observed.

“The csDMARD cotherapy significantly improved remission; we could perhaps argue whether these small differences are clinically meaningful, but they were highly significant in the study.”
 

Why look at csDMARD and TNFi cotherapy?

European guidelines suggest that csDMARDs are not that useful for treating people with SpA, stating that they should not be used in axial disease and used only as monotherapy in those with peripheral disease.

“Nevertheless, these medications are often used, which begs us to ask the question why is that the case?” Dr. Nissen said.

As previous work by Dr. Nissen and others had suggested that there might be a benefit of combining a csDMARD and a TNFi, the aim was to build upon this and see if looking at a very large patient population might be able to provide some clear answers.

The analysis included data from 13 European registries and more than 24,000 patients who had started their first TNFi between 2006 and 2017. The mean age of the study population was 42.5 years, and 58% were male, with an average disease duration of 5.9 years. Nearly one-third of patients were receiving comedication with a csDMARD, although this ranged from 13.5% to 71.2% depending on the country.

The most frequently used TNFi were adalimumab (31% of patients overall), etanercept (24%), and infliximab (25%), and the most-used csDMARDs were methotrexate (56%) and sulfasalazine (45%).

The effectiveness of treatment in achieving clinical remission was examined according to the TNFi used and for the use of csDMARDs.

“We found that sulfasalazine and methotrexate were similarly effective in terms of improving outcomes in addition to a TNF inhibitor,” Dr. Nissen said. For example, the adjusted odds ratios for using sulfasalazine or methotrexate with infliximab were a respective 1.32 and 1.37, and the aORs for uses these specific csDMARDs with etanercept were 1.38 and 1.35.

The researchers reported finding significantly higher aORs if both sulfasalazine and methotrexate were used with a TNFi (1.67 for any TNFi, 1.95 for infliximab, 1.45 foretanercept, and 1.85 for adalimumab).

This perhaps suggests “there’s some role for combining csDMARDs to have an even greater effect,” Dr. Nissen put forward.
 

A ‘very provocative conclusion’

That’s “a very provocative conclusion” commented Robert Landewé, MD, PhD, of Amsterdam University Medical Center who chaired the sessions. “You can see it by the [number] of people that want to ask questions.”

Désirée van der Heijde, MD, PhD, of Leiden (the Netherlands) University Medical Center, commented these data were “timely as we are updating the ASAS/EULAR [Assessment of SpondyloArthritis international Society/European Alliance of Associations for Rheumatology] recommendations at the moment.” She queried, however, if the differences were clinically significant.

“I think if you have a database of 24,000 patients, highly, statistically significant doesn’t tell me a lot. So, I want to look at the clinical meaning of the differences. So, if you have a 2% difference in retention rate, is that worth prescribing comedication?” Dr. van der Heijde said.

“I think you’re absolutely right,” Dr. Nissen responded. “We’re obviously going to find highly significant differences with such a big patient group.” While the small statistical differences seen may not look very clinically relevant at face value, they could provide some guidance for clinical decision making.

“It may alter our approach if that patient is already on a csDMARD and has peripheral disease; perhaps there’s tendency to then to keep that csDMARD rather than then stopping it and switching to a biologic agent,” Dr. Nissen argued. It’s a topic that has been debated for some time, he added, and further study is needed, but “I think it helps give a little bit more clarity to the idea.”

Another point of discussion was the proportion of patients who had “pure axial disease.” More patients in the comedication group had peripheral disease, Dr. van der Heijde pointed out, “that’s also where we expect to see the differences.”

Further research is needed, but there doesn’t seem to be any impact in terms of the effect on retention, Dr. Nissen said, “but it’s a little bit harder to interpret for efficacy.”

Confounding by indication was another issued raised, which “is very difficult to control for in this type of study,” Dr. Nissen said.

“The hope is that you have a big enough population” so this doesn’t matter, but as is the nature there were lots of missing data that would have been useful to have and adjust for, such as psoriasis and smoking status. There was also no adjustment for the number of patient visits, as it’s very different from registry to registry.

Dr. Nissen disclosed grant/research support from AbbVie and Novartis. He also acknowledged acting as a consultant or speaker for AbbVie, Celgene, Janssen, Eli Lilly, Novartis, and Pfizer.

Better retention and remission rates with tumor necrosis factor inhibitors (TNFi) have been observed in patients with spondyloarthritis (SpA) who were also treated with a conventional synthetic disease-modifying antirheumatic drug (csDMARD) rather than monotherapy.

Data from the EuroSpA Research Collaboration have shown that 82% of patients who received TNFi and csDMARD cotherapy were still taking their TNFi at 1 year versus 79% of those who were taking the biologic alone (P < .001).

Combination therapy led to remission in 21.8%, compared with TNFi monotherapy at 19.5% (P < .0001), with rates of remission according to Ankylosing Spondylitis Disease Activity Score <1.3 (23.7% vs. 21.8%, P = .011) and Bath Ankylosing Spondylitis Disease Activity Index <2 (5.9% vs. 7.7%, P < .0001) also favoring the cotherapy group.

“We did see a considerable heterogeneity across the countries in this study, both in the use of csDMARD therapy and in the TNF [inhibitor] retention,” Michael J. Nissen, MBBS, FRACP, MD, a rheumatologist at the University of Geneva, said in an oral abstract presentation at the 12th International Congress on Spondyloarthritides.

“Overall, the 1-year TNFi retention was better with cotherapy, particularly in countries in the Scandinavian region and Switzerland,” Dr. Nissen observed.

“The csDMARD cotherapy significantly improved remission; we could perhaps argue whether these small differences are clinically meaningful, but they were highly significant in the study.”
 

Why look at csDMARD and TNFi cotherapy?

European guidelines suggest that csDMARDs are not that useful for treating people with SpA, stating that they should not be used in axial disease and used only as monotherapy in those with peripheral disease.

“Nevertheless, these medications are often used, which begs us to ask the question why is that the case?” Dr. Nissen said.

As previous work by Dr. Nissen and others had suggested that there might be a benefit of combining a csDMARD and a TNFi, the aim was to build upon this and see if looking at a very large patient population might be able to provide some clear answers.

The analysis included data from 13 European registries and more than 24,000 patients who had started their first TNFi between 2006 and 2017. The mean age of the study population was 42.5 years, and 58% were male, with an average disease duration of 5.9 years. Nearly one-third of patients were receiving comedication with a csDMARD, although this ranged from 13.5% to 71.2% depending on the country.

The most frequently used TNFi were adalimumab (31% of patients overall), etanercept (24%), and infliximab (25%), and the most-used csDMARDs were methotrexate (56%) and sulfasalazine (45%).

The effectiveness of treatment in achieving clinical remission was examined according to the TNFi used and for the use of csDMARDs.

“We found that sulfasalazine and methotrexate were similarly effective in terms of improving outcomes in addition to a TNF inhibitor,” Dr. Nissen said. For example, the adjusted odds ratios for using sulfasalazine or methotrexate with infliximab were a respective 1.32 and 1.37, and the aORs for uses these specific csDMARDs with etanercept were 1.38 and 1.35.

The researchers reported finding significantly higher aORs if both sulfasalazine and methotrexate were used with a TNFi (1.67 for any TNFi, 1.95 for infliximab, 1.45 foretanercept, and 1.85 for adalimumab).

This perhaps suggests “there’s some role for combining csDMARDs to have an even greater effect,” Dr. Nissen put forward.
 

A ‘very provocative conclusion’

That’s “a very provocative conclusion” commented Robert Landewé, MD, PhD, of Amsterdam University Medical Center who chaired the sessions. “You can see it by the [number] of people that want to ask questions.”

Désirée van der Heijde, MD, PhD, of Leiden (the Netherlands) University Medical Center, commented these data were “timely as we are updating the ASAS/EULAR [Assessment of SpondyloArthritis international Society/European Alliance of Associations for Rheumatology] recommendations at the moment.” She queried, however, if the differences were clinically significant.

“I think if you have a database of 24,000 patients, highly, statistically significant doesn’t tell me a lot. So, I want to look at the clinical meaning of the differences. So, if you have a 2% difference in retention rate, is that worth prescribing comedication?” Dr. van der Heijde said.

“I think you’re absolutely right,” Dr. Nissen responded. “We’re obviously going to find highly significant differences with such a big patient group.” While the small statistical differences seen may not look very clinically relevant at face value, they could provide some guidance for clinical decision making.

“It may alter our approach if that patient is already on a csDMARD and has peripheral disease; perhaps there’s tendency to then to keep that csDMARD rather than then stopping it and switching to a biologic agent,” Dr. Nissen argued. It’s a topic that has been debated for some time, he added, and further study is needed, but “I think it helps give a little bit more clarity to the idea.”

Another point of discussion was the proportion of patients who had “pure axial disease.” More patients in the comedication group had peripheral disease, Dr. van der Heijde pointed out, “that’s also where we expect to see the differences.”

Further research is needed, but there doesn’t seem to be any impact in terms of the effect on retention, Dr. Nissen said, “but it’s a little bit harder to interpret for efficacy.”

Confounding by indication was another issued raised, which “is very difficult to control for in this type of study,” Dr. Nissen said.

“The hope is that you have a big enough population” so this doesn’t matter, but as is the nature there were lots of missing data that would have been useful to have and adjust for, such as psoriasis and smoking status. There was also no adjustment for the number of patient visits, as it’s very different from registry to registry.

Dr. Nissen disclosed grant/research support from AbbVie and Novartis. He also acknowledged acting as a consultant or speaker for AbbVie, Celgene, Janssen, Eli Lilly, Novartis, and Pfizer.

Better retention and remission rates with tumor necrosis factor inhibitors (TNFi) have been observed in patients with spondyloarthritis (SpA) who were also treated with a conventional synthetic disease-modifying antirheumatic drug (csDMARD) rather than monotherapy.

Data from the EuroSpA Research Collaboration have shown that 82% of patients who received TNFi and csDMARD cotherapy were still taking their TNFi at 1 year versus 79% of those who were taking the biologic alone (P < .001).

Combination therapy led to remission in 21.8%, compared with TNFi monotherapy at 19.5% (P < .0001), with rates of remission according to Ankylosing Spondylitis Disease Activity Score <1.3 (23.7% vs. 21.8%, P = .011) and Bath Ankylosing Spondylitis Disease Activity Index <2 (5.9% vs. 7.7%, P < .0001) also favoring the cotherapy group.

“We did see a considerable heterogeneity across the countries in this study, both in the use of csDMARD therapy and in the TNF [inhibitor] retention,” Michael J. Nissen, MBBS, FRACP, MD, a rheumatologist at the University of Geneva, said in an oral abstract presentation at the 12th International Congress on Spondyloarthritides.

“Overall, the 1-year TNFi retention was better with cotherapy, particularly in countries in the Scandinavian region and Switzerland,” Dr. Nissen observed.

“The csDMARD cotherapy significantly improved remission; we could perhaps argue whether these small differences are clinically meaningful, but they were highly significant in the study.”
 

Why look at csDMARD and TNFi cotherapy?

European guidelines suggest that csDMARDs are not that useful for treating people with SpA, stating that they should not be used in axial disease and used only as monotherapy in those with peripheral disease.

“Nevertheless, these medications are often used, which begs us to ask the question why is that the case?” Dr. Nissen said.

As previous work by Dr. Nissen and others had suggested that there might be a benefit of combining a csDMARD and a TNFi, the aim was to build upon this and see if looking at a very large patient population might be able to provide some clear answers.

The analysis included data from 13 European registries and more than 24,000 patients who had started their first TNFi between 2006 and 2017. The mean age of the study population was 42.5 years, and 58% were male, with an average disease duration of 5.9 years. Nearly one-third of patients were receiving comedication with a csDMARD, although this ranged from 13.5% to 71.2% depending on the country.

The most frequently used TNFi were adalimumab (31% of patients overall), etanercept (24%), and infliximab (25%), and the most-used csDMARDs were methotrexate (56%) and sulfasalazine (45%).

The effectiveness of treatment in achieving clinical remission was examined according to the TNFi used and for the use of csDMARDs.

“We found that sulfasalazine and methotrexate were similarly effective in terms of improving outcomes in addition to a TNF inhibitor,” Dr. Nissen said. For example, the adjusted odds ratios for using sulfasalazine or methotrexate with infliximab were a respective 1.32 and 1.37, and the aORs for uses these specific csDMARDs with etanercept were 1.38 and 1.35.

The researchers reported finding significantly higher aORs if both sulfasalazine and methotrexate were used with a TNFi (1.67 for any TNFi, 1.95 for infliximab, 1.45 foretanercept, and 1.85 for adalimumab).

This perhaps suggests “there’s some role for combining csDMARDs to have an even greater effect,” Dr. Nissen put forward.
 

A ‘very provocative conclusion’

That’s “a very provocative conclusion” commented Robert Landewé, MD, PhD, of Amsterdam University Medical Center who chaired the sessions. “You can see it by the [number] of people that want to ask questions.”

Désirée van der Heijde, MD, PhD, of Leiden (the Netherlands) University Medical Center, commented these data were “timely as we are updating the ASAS/EULAR [Assessment of SpondyloArthritis international Society/European Alliance of Associations for Rheumatology] recommendations at the moment.” She queried, however, if the differences were clinically significant.

“I think if you have a database of 24,000 patients, highly, statistically significant doesn’t tell me a lot. So, I want to look at the clinical meaning of the differences. So, if you have a 2% difference in retention rate, is that worth prescribing comedication?” Dr. van der Heijde said.

“I think you’re absolutely right,” Dr. Nissen responded. “We’re obviously going to find highly significant differences with such a big patient group.” While the small statistical differences seen may not look very clinically relevant at face value, they could provide some guidance for clinical decision making.

“It may alter our approach if that patient is already on a csDMARD and has peripheral disease; perhaps there’s tendency to then to keep that csDMARD rather than then stopping it and switching to a biologic agent,” Dr. Nissen argued. It’s a topic that has been debated for some time, he added, and further study is needed, but “I think it helps give a little bit more clarity to the idea.”

Another point of discussion was the proportion of patients who had “pure axial disease.” More patients in the comedication group had peripheral disease, Dr. van der Heijde pointed out, “that’s also where we expect to see the differences.”

Further research is needed, but there doesn’t seem to be any impact in terms of the effect on retention, Dr. Nissen said, “but it’s a little bit harder to interpret for efficacy.”

Confounding by indication was another issued raised, which “is very difficult to control for in this type of study,” Dr. Nissen said.

“The hope is that you have a big enough population” so this doesn’t matter, but as is the nature there were lots of missing data that would have been useful to have and adjust for, such as psoriasis and smoking status. There was also no adjustment for the number of patient visits, as it’s very different from registry to registry.

Dr. Nissen disclosed grant/research support from AbbVie and Novartis. He also acknowledged acting as a consultant or speaker for AbbVie, Celgene, Janssen, Eli Lilly, Novartis, and Pfizer.

A new study rebuts the conventional rheumatology wisdom about ankylosing spondylitis (AS) by reporting that actually there’s no gender gap in the prevalence of the disease. Researchers found no statistically significant difference in rates between men and women based on an analysis of military medical records.

feellife/Thinkstock

“Our findings challenge the widely held belief that AS in the U.S. occurs substantially more frequently in males than females,” the study authors, led by data scientist D. Alan Nelson, PhD, of Stanford (Calif.) University, wrote in a study published Aug. 30 in Arthritis Care & Research.

The researchers launched the study to fill a gap in knowledge regarding case rates by gender. “The incidence of AS in the U.S. has been understudied and incompletely characterized,” they wrote.

Even though AS is fairly common, affecting an estimated 1% of the American adult population (2.5 million people), only one published population study has examined rates by gender in the United States. That study tracked cases in Minnesota’s Olmsted County during 1980-2009 and found that the ratio of cases in men vs. women was 3.8:1, which was “consistent with more recent estimates” at the time.

However, the population in that study in 1980 was 100% White, the authors of the new study note. A Canadian study that tracked an Ontario population from 1995 to 2010, meanwhile, suggested that AS rates among women were rising and the gender gap was shrinking. AS rates as a whole also nearly tripled, possibly because of more awareness.

For the new study, researchers retrospectively tracked 728,556 members of the U.S. military who underwent guideline-directed screening for back pain during 2014-2017. The study population was about 68% White, 22% Black, 5% Asian or Pacific Islander, and the remainder were other races or unknown. About 85% were male.

The subjects were monitored for a mean of 2.21 years, and 438 (0.06%) were diagnosed with AS at least once over that period.

The researchers found that the AS rates among males vs. females were similar (incidence rate ratio, 1.16; P = .23; adjusted odds ratio, 0.79; 95% confidence interval, 0.61-1.02; P = .072).

The researchers also found that Whites were more likely to develop AS than Blacks (aOR, 1.39; 95% CI, 1.01-1.66; P = .04).

The risk of AS increased with age, the researchers reported, with the odds growing sevenfold in the 45-and-older population vs. the under-24 population (aOR, 7.3; 95% CI, 5.7-10.3; P < .001).

The researchers noted that their study examined a more diverse population than the earlier Minnesota study. It’s also possible that the results of the two studies differed because of differences in definitions of AS diagnosis or imprecision in diagnosis codes, they wrote.

The researchers added that “the finding of a 1.21 male-female prevalence ratio of AS in the Canadian Ontario study was also generally consistent with our findings. Similar to our study population, the Canadian population was racially more diverse than the Olmsted study population at the times of both studies.”

Some limitations of the study include the fact that the military population is not a random sample and may have low rates of AS. “It is highly likely that most clinically evident cases of AS would have been screened out prior to enrollment in the military service,” they wrote. “Differences between military service members and the general population may explain why we observed a different association between AS incidence and age in comparison to that reported by prior studies. The increasing risk of AS with adult age that we observed could reflect selective discharge patterns related to very early symptoms of AS in this population.”

The study was funded in part by a grant from the Spondylitis Association of America. No information about potential conflicts of interest was provided in the manuscript.

A new study rebuts the conventional rheumatology wisdom about ankylosing spondylitis (AS) by reporting that actually there’s no gender gap in the prevalence of the disease. Researchers found no statistically significant difference in rates between men and women based on an analysis of military medical records.

feellife/Thinkstock

“Our findings challenge the widely held belief that AS in the U.S. occurs substantially more frequently in males than females,” the study authors, led by data scientist D. Alan Nelson, PhD, of Stanford (Calif.) University, wrote in a study published Aug. 30 in Arthritis Care & Research.

The researchers launched the study to fill a gap in knowledge regarding case rates by gender. “The incidence of AS in the U.S. has been understudied and incompletely characterized,” they wrote.

Even though AS is fairly common, affecting an estimated 1% of the American adult population (2.5 million people), only one published population study has examined rates by gender in the United States. That study tracked cases in Minnesota’s Olmsted County during 1980-2009 and found that the ratio of cases in men vs. women was 3.8:1, which was “consistent with more recent estimates” at the time.

However, the population in that study in 1980 was 100% White, the authors of the new study note. A Canadian study that tracked an Ontario population from 1995 to 2010, meanwhile, suggested that AS rates among women were rising and the gender gap was shrinking. AS rates as a whole also nearly tripled, possibly because of more awareness.

For the new study, researchers retrospectively tracked 728,556 members of the U.S. military who underwent guideline-directed screening for back pain during 2014-2017. The study population was about 68% White, 22% Black, 5% Asian or Pacific Islander, and the remainder were other races or unknown. About 85% were male.

The subjects were monitored for a mean of 2.21 years, and 438 (0.06%) were diagnosed with AS at least once over that period.

The researchers found that the AS rates among males vs. females were similar (incidence rate ratio, 1.16; P = .23; adjusted odds ratio, 0.79; 95% confidence interval, 0.61-1.02; P = .072).

The researchers also found that Whites were more likely to develop AS than Blacks (aOR, 1.39; 95% CI, 1.01-1.66; P = .04).

The risk of AS increased with age, the researchers reported, with the odds growing sevenfold in the 45-and-older population vs. the under-24 population (aOR, 7.3; 95% CI, 5.7-10.3; P < .001).

The researchers noted that their study examined a more diverse population than the earlier Minnesota study. It’s also possible that the results of the two studies differed because of differences in definitions of AS diagnosis or imprecision in diagnosis codes, they wrote.

The researchers added that “the finding of a 1.21 male-female prevalence ratio of AS in the Canadian Ontario study was also generally consistent with our findings. Similar to our study population, the Canadian population was racially more diverse than the Olmsted study population at the times of both studies.”

Some limitations of the study include the fact that the military population is not a random sample and may have low rates of AS. “It is highly likely that most clinically evident cases of AS would have been screened out prior to enrollment in the military service,” they wrote. “Differences between military service members and the general population may explain why we observed a different association between AS incidence and age in comparison to that reported by prior studies. The increasing risk of AS with adult age that we observed could reflect selective discharge patterns related to very early symptoms of AS in this population.”

The study was funded in part by a grant from the Spondylitis Association of America. No information about potential conflicts of interest was provided in the manuscript.

A new study rebuts the conventional rheumatology wisdom about ankylosing spondylitis (AS) by reporting that actually there’s no gender gap in the prevalence of the disease. Researchers found no statistically significant difference in rates between men and women based on an analysis of military medical records.

feellife/Thinkstock

“Our findings challenge the widely held belief that AS in the U.S. occurs substantially more frequently in males than females,” the study authors, led by data scientist D. Alan Nelson, PhD, of Stanford (Calif.) University, wrote in a study published Aug. 30 in Arthritis Care & Research.

The researchers launched the study to fill a gap in knowledge regarding case rates by gender. “The incidence of AS in the U.S. has been understudied and incompletely characterized,” they wrote.

Even though AS is fairly common, affecting an estimated 1% of the American adult population (2.5 million people), only one published population study has examined rates by gender in the United States. That study tracked cases in Minnesota’s Olmsted County during 1980-2009 and found that the ratio of cases in men vs. women was 3.8:1, which was “consistent with more recent estimates” at the time.

However, the population in that study in 1980 was 100% White, the authors of the new study note. A Canadian study that tracked an Ontario population from 1995 to 2010, meanwhile, suggested that AS rates among women were rising and the gender gap was shrinking. AS rates as a whole also nearly tripled, possibly because of more awareness.

For the new study, researchers retrospectively tracked 728,556 members of the U.S. military who underwent guideline-directed screening for back pain during 2014-2017. The study population was about 68% White, 22% Black, 5% Asian or Pacific Islander, and the remainder were other races or unknown. About 85% were male.

The subjects were monitored for a mean of 2.21 years, and 438 (0.06%) were diagnosed with AS at least once over that period.

The researchers found that the AS rates among males vs. females were similar (incidence rate ratio, 1.16; P = .23; adjusted odds ratio, 0.79; 95% confidence interval, 0.61-1.02; P = .072).

The researchers also found that Whites were more likely to develop AS than Blacks (aOR, 1.39; 95% CI, 1.01-1.66; P = .04).

The risk of AS increased with age, the researchers reported, with the odds growing sevenfold in the 45-and-older population vs. the under-24 population (aOR, 7.3; 95% CI, 5.7-10.3; P < .001).

The researchers noted that their study examined a more diverse population than the earlier Minnesota study. It’s also possible that the results of the two studies differed because of differences in definitions of AS diagnosis or imprecision in diagnosis codes, they wrote.

The researchers added that “the finding of a 1.21 male-female prevalence ratio of AS in the Canadian Ontario study was also generally consistent with our findings. Similar to our study population, the Canadian population was racially more diverse than the Olmsted study population at the times of both studies.”

Some limitations of the study include the fact that the military population is not a random sample and may have low rates of AS. “It is highly likely that most clinically evident cases of AS would have been screened out prior to enrollment in the military service,” they wrote. “Differences between military service members and the general population may explain why we observed a different association between AS incidence and age in comparison to that reported by prior studies. The increasing risk of AS with adult age that we observed could reflect selective discharge patterns related to very early symptoms of AS in this population.”

The study was funded in part by a grant from the Spondylitis Association of America. No information about potential conflicts of interest was provided in the manuscript.

With 49% of the U.S. population fully vaccinated against SARS-CoV-2, a new study highlights the degree of vaccine hesitancy among patients with rheumatic disease to get the vaccine.

Halfpoint Images/Moment/Getty Images

The international study, published in May 2021 in Rheumatology, suggests that, of 1,258 patients surveyed worldwide, approximately 40% of patients said they would decline the vaccine.

“Sometimes it’s helpful to talk through their concerns,” said Jeffrey Curtis, MD, MPH, a University of Alabama at Birmingham rheumatologist who leads the American College of Rheumatology COVID-19 vaccine task force. Dr. Curtis recently reviewed the current literature on COVID-19 vaccination in patients with rheumatic and musculoskeletal diseases (RMDs) at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.

COVID-19 vaccinations for patients with autoimmune inflammatory rheumatic disease (AIIRD) is not straightforward. The immune response can be blunted by existing treatments and disease flares can occur.

Courtesy UAB Photo

The latest version of COVID-19 vaccination guidance for patients with RMDs from the ACR addresses vaccine use and implementation strategies. The guidance was issued as conditional or provisional because of the lack of evidence. Its principals are largely based on accepted practice for other vaccines. The guidance is routinely updated as new evidence becomes available. In his presentation at GRAPPA, Dr. Curtis reviewed the latest version of the guidance, which he emphasized is a guidance only and not meant to replace clinical judgment or shared decision-making with patients.

“This is a platform for you to start from as you are thinking about and discussing with your patient what might be best for him or her,” he said.
 

Concerns about impact of disease activity, treatments on effectiveness

Dr. Curtis highlighted some controversial aspects of COVID-19 vaccines, including heterogeneity of rheumatic diseases and treatment. Patients with AIIRD, including psoriatic arthritis, spondyloarthritis, RA, and lupus, are at higher risk for hospitalized COVID-19 and worse outcomes, and as such, they are prioritized for vaccination by the Centers for Disease Control and Prevention.

However, for AIIRD patients, the immune response to COVID-19 vaccination can be “blunted,” according to one study. This may be because of glucocorticoid use or high disease activity. Immunomodulatory therapies, such as methotrexate, rituximab, and abatacept, are known to diminish vaccine response in general. The evidence is less clear for tumor necrosis factor and Janus kinase inhibitors, but they are thought to have the same impact on vaccine effectiveness, Dr. Curtis said. But in these cases, if the effect of a COVID-19 vaccine drops from 90% to 70%, the benefits of vaccination still far outweighs the risk of contracting COVID-19.

“Although we don’t have strong data with clinical outcomes for autoimmune disease or inflammatory disease patients, I’ll run a hypothetical and say: ‘Look, if this vaccine starts 90%-95% effective, even if it’s only 70% effective in somebody with lupus or vasculitis or someone who is taking a higher dose of steroids, I’ll take 70% over nothing if you chose to be vaccinated,’ ” he said.

The benefit of vaccination also outweighs the potential risk of disease flare, he said. The risk is real, but to date, no studies have pointed to a significant risk of disease flare or worsening. However, there have been reported cases of myocardial infarction.

Autoimmune manifestations after vaccination vs. after infection

Researchers writing in the June 29, 2021, issue of JAMA Cardiology described case reports of acute myocarditis in 23 people who received the BNT162b2-mRNA (Pfizer-BioNTech) or mRNA-1273 (Moderna) messenger RNA (mRNA) COVID-19 vaccines. Plus, there been subsequent reports of myocarditis in other patients, wrote David K. Shay, MD, MPH, in an accompanying editorial. Dr. Shay is a member of the CDC COVID-19 Response Team.

“What do we know about this possible association between myocarditis and immunization with mRNA-based COVID-19 vaccines, and what remains unclear? Acute onset of chest pain 3-5 days after vaccine administration, usually after a second dose, is a typical feature of reported cases and suggests an immune-mediated mechanism,” he said.

The cases of myocarditis are concerning, Dr. Curtis said, but the risk is very low with relatively few cases reported among 161 million fully vaccinated people in the United States.

“Certainly, we’re not seeking to minimize that, but the risk of getting COVID and some of the downstream sequelae (autoimmune manifestations) almost certainly outweigh the risks for some of the autoimmune manifestations or worsening [condition],” he said.

A nationwide cohort study from Denmark of 58,052 patients with inflammatory rheumatic disease published in December 2020 in Rheumatology, found that patients with COVID-19 who had an inflammatory rheumatic disease were more likely to be admitted to the hospital, compared with COVID-19 patients without rheumatic disease. Patients with rheumatic disease had a higher risk of a severe COVID-19 outcome, but it was not a statistically significant difference, said Dr. Curtis, adding that the individual factors such as age and treatment currently received largely determines the risk. The strongest associations between hospitalization for COVID-19 and rheumatic disease were found among patients with RA, vasculitis, and connective tissue disease. Dr. Curtis noted that his own new study results show that risk of death from a COVID-19 infection is higher for patients who have RA or psoriatic arthritis.

There have been published case reports of patients who have developed new-onset lupus, vasculitis, Kawasaki disease, multiple sclerosis, autoimmune cytopenias, and other manifestations after a COVID-19 infection. “These authors suggest that perhaps there is a transient influence on the immune system that leads to a loss of self-tolerance to antigens,” Dr. Curtis said. “Some patients may have an underlying predisposition to autoimmunity in which infections just unmask as we sometimes see with other infections – chronic hepatitis for example.”
 

Antibody tests not recommended

In its COVID-19 guidance, the ACR, like the Food and Drug Administration, recommends health care providers not to routinely order antibody tests for IgM or IgG to assess immunity after a person has been vaccinated or to assess the need for vaccination in an unvaccinated person. More research is needed to determine if antibodies provide protection, and if so, for how long and how much. Plus, the antibody testing process is not clear cut, so ordering the wrong test is possible, Dr. Curtis said. The tests should clearly differentiate between spike proteins or nucleocapsid proteins.

“The bottom line is that you might be ordering the wrong lab test. Even if you’re ordering the right lab test, I would assert that you probably don’t know what to do with the result. I would then ask you, ‘Does it mean they are protected? Does it mean they are not protected? What are you going to do with the results?’ ” he asked.

Kevin Winthrop, MD, MPH, a specialist in infectious diseases at Oregon Health & Science University, Portland, said that, at this point, it’s too early to know what antibody tests mean. “I think it is tempting to test some people, especially patients on B-cell depletion therapy and those on mycophenolate mofetil (MMF). Outside of those two types of [disease-modifying antirheumatic drug] users, I wouldn’t be tempted to test. We don’t know how well protected they are, but we assume they are protected to some extent,” he said. “They’re probably partially protected and as such, they should take the same precautions they were taking a year ago: masking and avoidance. I think that’s just how it’s going to be for those folks for another year until we get this thing sorted out.”
 

Modifications to existing rheumatic disease therapies

In its COVID-19 vaccine guidance, the ACR issued recommendations for some common rheumatic disease therapeutics before and/or after the COVID-19 vaccine is administered. The modifications are limited to MMF, methotrexate, JAK inhibitors, subcutaneous abatacept, acetaminophen, and NSAIDs. The recommendations include: hold mycophenolate for 1 week after vaccination if disease is stable; for patients with well-controlled disease, hold methotrexate for 1 week after each of the two mRNA vaccine doses; for patients with well-controlled disease receiving the Johnson & Johnson vaccine, hold methotrexate for 2 weeks after receiving the vaccine; hold JAK inhibitors for 1 week after each dose; for abatacept subcutaneous, hold treatment for 1 week before and after the first dose; and in patients with stable disease, hold acetaminophen and NSAIDs for 24 hours before vaccination, because taking either before vaccination could blunt the vaccine response, Dr. Curtis said.

Holding medication, such as methotrexate, could risk having a flare-up of disease. One study showed the rate of disease flare-up because of withholding standard treatment may be up to 11%, compared with 5.1% in patients who did not hold treatment, he said.

“The point is, if you hold some of these therapies, whether methotrexate or tofacitinib, arthritis will get a little bit worse,” Dr. Curtis said.

A study published on the preprint server medRxiv found that immunosuppressive therapies blunted the response of SARS-CoV-2 vaccines in patients with chronic inflammatory diseases, most significantly with glucocorticoids and B-cell therapies.

“That’s what’s led to a lot of the guidance statements about holding treatments for a week or 2 for rituximab. If you’re giving it at 6-month intervals, you want to schedule the vaccine dose or series at about month 5, or a month before the next cycle,” he said.

Talking with patients about COVID-19 vaccination

In talking with patients about vaccine safety, Dr. Curtis recommends addressing a few common misperceptions. First, COVID-19 viruses were not created with a live-attenuated virus (which would be contraindicated for immunosuppressed patients). “You can put patients’ mind at ease that none of the vaccine candidates or platforms – even those that say viral vector – put patients at risk for contracting the infection. These are nonreplicating. So, it’s like you extracted the engine that would allow this virus to replicate,” he said.

Of three COVID-19 vaccinations available in the United States, is one better than the other? The ACR COVID-19 vaccine task force did not reach a consensus on safety profiles of the vaccines because, without head-to-head comparisons, it’s impossible to know, he said.

In talking with patients, review the protocol for continuing with prescribed treatment modalities before the patient receives a COVID-19 vaccine. Safety concerns and concerns about the possibility of having a disease flare-up should be addressed, he said.

With 49% of the U.S. population fully vaccinated against SARS-CoV-2, a new study highlights the degree of vaccine hesitancy among patients with rheumatic disease to get the vaccine.

Halfpoint Images/Moment/Getty Images

The international study, published in May 2021 in Rheumatology, suggests that, of 1,258 patients surveyed worldwide, approximately 40% of patients said they would decline the vaccine.

“Sometimes it’s helpful to talk through their concerns,” said Jeffrey Curtis, MD, MPH, a University of Alabama at Birmingham rheumatologist who leads the American College of Rheumatology COVID-19 vaccine task force. Dr. Curtis recently reviewed the current literature on COVID-19 vaccination in patients with rheumatic and musculoskeletal diseases (RMDs) at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.

COVID-19 vaccinations for patients with autoimmune inflammatory rheumatic disease (AIIRD) is not straightforward. The immune response can be blunted by existing treatments and disease flares can occur.

Courtesy UAB Photo

The latest version of COVID-19 vaccination guidance for patients with RMDs from the ACR addresses vaccine use and implementation strategies. The guidance was issued as conditional or provisional because of the lack of evidence. Its principals are largely based on accepted practice for other vaccines. The guidance is routinely updated as new evidence becomes available. In his presentation at GRAPPA, Dr. Curtis reviewed the latest version of the guidance, which he emphasized is a guidance only and not meant to replace clinical judgment or shared decision-making with patients.

“This is a platform for you to start from as you are thinking about and discussing with your patient what might be best for him or her,” he said.
 

Concerns about impact of disease activity, treatments on effectiveness

Dr. Curtis highlighted some controversial aspects of COVID-19 vaccines, including heterogeneity of rheumatic diseases and treatment. Patients with AIIRD, including psoriatic arthritis, spondyloarthritis, RA, and lupus, are at higher risk for hospitalized COVID-19 and worse outcomes, and as such, they are prioritized for vaccination by the Centers for Disease Control and Prevention.

However, for AIIRD patients, the immune response to COVID-19 vaccination can be “blunted,” according to one study. This may be because of glucocorticoid use or high disease activity. Immunomodulatory therapies, such as methotrexate, rituximab, and abatacept, are known to diminish vaccine response in general. The evidence is less clear for tumor necrosis factor and Janus kinase inhibitors, but they are thought to have the same impact on vaccine effectiveness, Dr. Curtis said. But in these cases, if the effect of a COVID-19 vaccine drops from 90% to 70%, the benefits of vaccination still far outweighs the risk of contracting COVID-19.

“Although we don’t have strong data with clinical outcomes for autoimmune disease or inflammatory disease patients, I’ll run a hypothetical and say: ‘Look, if this vaccine starts 90%-95% effective, even if it’s only 70% effective in somebody with lupus or vasculitis or someone who is taking a higher dose of steroids, I’ll take 70% over nothing if you chose to be vaccinated,’ ” he said.

The benefit of vaccination also outweighs the potential risk of disease flare, he said. The risk is real, but to date, no studies have pointed to a significant risk of disease flare or worsening. However, there have been reported cases of myocardial infarction.

Autoimmune manifestations after vaccination vs. after infection

Researchers writing in the June 29, 2021, issue of JAMA Cardiology described case reports of acute myocarditis in 23 people who received the BNT162b2-mRNA (Pfizer-BioNTech) or mRNA-1273 (Moderna) messenger RNA (mRNA) COVID-19 vaccines. Plus, there been subsequent reports of myocarditis in other patients, wrote David K. Shay, MD, MPH, in an accompanying editorial. Dr. Shay is a member of the CDC COVID-19 Response Team.

“What do we know about this possible association between myocarditis and immunization with mRNA-based COVID-19 vaccines, and what remains unclear? Acute onset of chest pain 3-5 days after vaccine administration, usually after a second dose, is a typical feature of reported cases and suggests an immune-mediated mechanism,” he said.

The cases of myocarditis are concerning, Dr. Curtis said, but the risk is very low with relatively few cases reported among 161 million fully vaccinated people in the United States.

“Certainly, we’re not seeking to minimize that, but the risk of getting COVID and some of the downstream sequelae (autoimmune manifestations) almost certainly outweigh the risks for some of the autoimmune manifestations or worsening [condition],” he said.

A nationwide cohort study from Denmark of 58,052 patients with inflammatory rheumatic disease published in December 2020 in Rheumatology, found that patients with COVID-19 who had an inflammatory rheumatic disease were more likely to be admitted to the hospital, compared with COVID-19 patients without rheumatic disease. Patients with rheumatic disease had a higher risk of a severe COVID-19 outcome, but it was not a statistically significant difference, said Dr. Curtis, adding that the individual factors such as age and treatment currently received largely determines the risk. The strongest associations between hospitalization for COVID-19 and rheumatic disease were found among patients with RA, vasculitis, and connective tissue disease. Dr. Curtis noted that his own new study results show that risk of death from a COVID-19 infection is higher for patients who have RA or psoriatic arthritis.

There have been published case reports of patients who have developed new-onset lupus, vasculitis, Kawasaki disease, multiple sclerosis, autoimmune cytopenias, and other manifestations after a COVID-19 infection. “These authors suggest that perhaps there is a transient influence on the immune system that leads to a loss of self-tolerance to antigens,” Dr. Curtis said. “Some patients may have an underlying predisposition to autoimmunity in which infections just unmask as we sometimes see with other infections – chronic hepatitis for example.”
 

Antibody tests not recommended

In its COVID-19 guidance, the ACR, like the Food and Drug Administration, recommends health care providers not to routinely order antibody tests for IgM or IgG to assess immunity after a person has been vaccinated or to assess the need for vaccination in an unvaccinated person. More research is needed to determine if antibodies provide protection, and if so, for how long and how much. Plus, the antibody testing process is not clear cut, so ordering the wrong test is possible, Dr. Curtis said. The tests should clearly differentiate between spike proteins or nucleocapsid proteins.

“The bottom line is that you might be ordering the wrong lab test. Even if you’re ordering the right lab test, I would assert that you probably don’t know what to do with the result. I would then ask you, ‘Does it mean they are protected? Does it mean they are not protected? What are you going to do with the results?’ ” he asked.

Kevin Winthrop, MD, MPH, a specialist in infectious diseases at Oregon Health & Science University, Portland, said that, at this point, it’s too early to know what antibody tests mean. “I think it is tempting to test some people, especially patients on B-cell depletion therapy and those on mycophenolate mofetil (MMF). Outside of those two types of [disease-modifying antirheumatic drug] users, I wouldn’t be tempted to test. We don’t know how well protected they are, but we assume they are protected to some extent,” he said. “They’re probably partially protected and as such, they should take the same precautions they were taking a year ago: masking and avoidance. I think that’s just how it’s going to be for those folks for another year until we get this thing sorted out.”
 

Modifications to existing rheumatic disease therapies

In its COVID-19 vaccine guidance, the ACR issued recommendations for some common rheumatic disease therapeutics before and/or after the COVID-19 vaccine is administered. The modifications are limited to MMF, methotrexate, JAK inhibitors, subcutaneous abatacept, acetaminophen, and NSAIDs. The recommendations include: hold mycophenolate for 1 week after vaccination if disease is stable; for patients with well-controlled disease, hold methotrexate for 1 week after each of the two mRNA vaccine doses; for patients with well-controlled disease receiving the Johnson & Johnson vaccine, hold methotrexate for 2 weeks after receiving the vaccine; hold JAK inhibitors for 1 week after each dose; for abatacept subcutaneous, hold treatment for 1 week before and after the first dose; and in patients with stable disease, hold acetaminophen and NSAIDs for 24 hours before vaccination, because taking either before vaccination could blunt the vaccine response, Dr. Curtis said.

Holding medication, such as methotrexate, could risk having a flare-up of disease. One study showed the rate of disease flare-up because of withholding standard treatment may be up to 11%, compared with 5.1% in patients who did not hold treatment, he said.

“The point is, if you hold some of these therapies, whether methotrexate or tofacitinib, arthritis will get a little bit worse,” Dr. Curtis said.

A study published on the preprint server medRxiv found that immunosuppressive therapies blunted the response of SARS-CoV-2 vaccines in patients with chronic inflammatory diseases, most significantly with glucocorticoids and B-cell therapies.

“That’s what’s led to a lot of the guidance statements about holding treatments for a week or 2 for rituximab. If you’re giving it at 6-month intervals, you want to schedule the vaccine dose or series at about month 5, or a month before the next cycle,” he said.

Talking with patients about COVID-19 vaccination

In talking with patients about vaccine safety, Dr. Curtis recommends addressing a few common misperceptions. First, COVID-19 viruses were not created with a live-attenuated virus (which would be contraindicated for immunosuppressed patients). “You can put patients’ mind at ease that none of the vaccine candidates or platforms – even those that say viral vector – put patients at risk for contracting the infection. These are nonreplicating. So, it’s like you extracted the engine that would allow this virus to replicate,” he said.

Of three COVID-19 vaccinations available in the United States, is one better than the other? The ACR COVID-19 vaccine task force did not reach a consensus on safety profiles of the vaccines because, without head-to-head comparisons, it’s impossible to know, he said.

In talking with patients, review the protocol for continuing with prescribed treatment modalities before the patient receives a COVID-19 vaccine. Safety concerns and concerns about the possibility of having a disease flare-up should be addressed, he said.

With 49% of the U.S. population fully vaccinated against SARS-CoV-2, a new study highlights the degree of vaccine hesitancy among patients with rheumatic disease to get the vaccine.

Halfpoint Images/Moment/Getty Images

The international study, published in May 2021 in Rheumatology, suggests that, of 1,258 patients surveyed worldwide, approximately 40% of patients said they would decline the vaccine.

“Sometimes it’s helpful to talk through their concerns,” said Jeffrey Curtis, MD, MPH, a University of Alabama at Birmingham rheumatologist who leads the American College of Rheumatology COVID-19 vaccine task force. Dr. Curtis recently reviewed the current literature on COVID-19 vaccination in patients with rheumatic and musculoskeletal diseases (RMDs) at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.

COVID-19 vaccinations for patients with autoimmune inflammatory rheumatic disease (AIIRD) is not straightforward. The immune response can be blunted by existing treatments and disease flares can occur.

Courtesy UAB Photo

The latest version of COVID-19 vaccination guidance for patients with RMDs from the ACR addresses vaccine use and implementation strategies. The guidance was issued as conditional or provisional because of the lack of evidence. Its principals are largely based on accepted practice for other vaccines. The guidance is routinely updated as new evidence becomes available. In his presentation at GRAPPA, Dr. Curtis reviewed the latest version of the guidance, which he emphasized is a guidance only and not meant to replace clinical judgment or shared decision-making with patients.

“This is a platform for you to start from as you are thinking about and discussing with your patient what might be best for him or her,” he said.
 

Concerns about impact of disease activity, treatments on effectiveness

Dr. Curtis highlighted some controversial aspects of COVID-19 vaccines, including heterogeneity of rheumatic diseases and treatment. Patients with AIIRD, including psoriatic arthritis, spondyloarthritis, RA, and lupus, are at higher risk for hospitalized COVID-19 and worse outcomes, and as such, they are prioritized for vaccination by the Centers for Disease Control and Prevention.

However, for AIIRD patients, the immune response to COVID-19 vaccination can be “blunted,” according to one study. This may be because of glucocorticoid use or high disease activity. Immunomodulatory therapies, such as methotrexate, rituximab, and abatacept, are known to diminish vaccine response in general. The evidence is less clear for tumor necrosis factor and Janus kinase inhibitors, but they are thought to have the same impact on vaccine effectiveness, Dr. Curtis said. But in these cases, if the effect of a COVID-19 vaccine drops from 90% to 70%, the benefits of vaccination still far outweighs the risk of contracting COVID-19.

“Although we don’t have strong data with clinical outcomes for autoimmune disease or inflammatory disease patients, I’ll run a hypothetical and say: ‘Look, if this vaccine starts 90%-95% effective, even if it’s only 70% effective in somebody with lupus or vasculitis or someone who is taking a higher dose of steroids, I’ll take 70% over nothing if you chose to be vaccinated,’ ” he said.

The benefit of vaccination also outweighs the potential risk of disease flare, he said. The risk is real, but to date, no studies have pointed to a significant risk of disease flare or worsening. However, there have been reported cases of myocardial infarction.

Autoimmune manifestations after vaccination vs. after infection

Researchers writing in the June 29, 2021, issue of JAMA Cardiology described case reports of acute myocarditis in 23 people who received the BNT162b2-mRNA (Pfizer-BioNTech) or mRNA-1273 (Moderna) messenger RNA (mRNA) COVID-19 vaccines. Plus, there been subsequent reports of myocarditis in other patients, wrote David K. Shay, MD, MPH, in an accompanying editorial. Dr. Shay is a member of the CDC COVID-19 Response Team.

“What do we know about this possible association between myocarditis and immunization with mRNA-based COVID-19 vaccines, and what remains unclear? Acute onset of chest pain 3-5 days after vaccine administration, usually after a second dose, is a typical feature of reported cases and suggests an immune-mediated mechanism,” he said.

The cases of myocarditis are concerning, Dr. Curtis said, but the risk is very low with relatively few cases reported among 161 million fully vaccinated people in the United States.

“Certainly, we’re not seeking to minimize that, but the risk of getting COVID and some of the downstream sequelae (autoimmune manifestations) almost certainly outweigh the risks for some of the autoimmune manifestations or worsening [condition],” he said.

A nationwide cohort study from Denmark of 58,052 patients with inflammatory rheumatic disease published in December 2020 in Rheumatology, found that patients with COVID-19 who had an inflammatory rheumatic disease were more likely to be admitted to the hospital, compared with COVID-19 patients without rheumatic disease. Patients with rheumatic disease had a higher risk of a severe COVID-19 outcome, but it was not a statistically significant difference, said Dr. Curtis, adding that the individual factors such as age and treatment currently received largely determines the risk. The strongest associations between hospitalization for COVID-19 and rheumatic disease were found among patients with RA, vasculitis, and connective tissue disease. Dr. Curtis noted that his own new study results show that risk of death from a COVID-19 infection is higher for patients who have RA or psoriatic arthritis.

There have been published case reports of patients who have developed new-onset lupus, vasculitis, Kawasaki disease, multiple sclerosis, autoimmune cytopenias, and other manifestations after a COVID-19 infection. “These authors suggest that perhaps there is a transient influence on the immune system that leads to a loss of self-tolerance to antigens,” Dr. Curtis said. “Some patients may have an underlying predisposition to autoimmunity in which infections just unmask as we sometimes see with other infections – chronic hepatitis for example.”
 

Antibody tests not recommended

In its COVID-19 guidance, the ACR, like the Food and Drug Administration, recommends health care providers not to routinely order antibody tests for IgM or IgG to assess immunity after a person has been vaccinated or to assess the need for vaccination in an unvaccinated person. More research is needed to determine if antibodies provide protection, and if so, for how long and how much. Plus, the antibody testing process is not clear cut, so ordering the wrong test is possible, Dr. Curtis said. The tests should clearly differentiate between spike proteins or nucleocapsid proteins.

“The bottom line is that you might be ordering the wrong lab test. Even if you’re ordering the right lab test, I would assert that you probably don’t know what to do with the result. I would then ask you, ‘Does it mean they are protected? Does it mean they are not protected? What are you going to do with the results?’ ” he asked.

Kevin Winthrop, MD, MPH, a specialist in infectious diseases at Oregon Health & Science University, Portland, said that, at this point, it’s too early to know what antibody tests mean. “I think it is tempting to test some people, especially patients on B-cell depletion therapy and those on mycophenolate mofetil (MMF). Outside of those two types of [disease-modifying antirheumatic drug] users, I wouldn’t be tempted to test. We don’t know how well protected they are, but we assume they are protected to some extent,” he said. “They’re probably partially protected and as such, they should take the same precautions they were taking a year ago: masking and avoidance. I think that’s just how it’s going to be for those folks for another year until we get this thing sorted out.”
 

Modifications to existing rheumatic disease therapies

In its COVID-19 vaccine guidance, the ACR issued recommendations for some common rheumatic disease therapeutics before and/or after the COVID-19 vaccine is administered. The modifications are limited to MMF, methotrexate, JAK inhibitors, subcutaneous abatacept, acetaminophen, and NSAIDs. The recommendations include: hold mycophenolate for 1 week after vaccination if disease is stable; for patients with well-controlled disease, hold methotrexate for 1 week after each of the two mRNA vaccine doses; for patients with well-controlled disease receiving the Johnson & Johnson vaccine, hold methotrexate for 2 weeks after receiving the vaccine; hold JAK inhibitors for 1 week after each dose; for abatacept subcutaneous, hold treatment for 1 week before and after the first dose; and in patients with stable disease, hold acetaminophen and NSAIDs for 24 hours before vaccination, because taking either before vaccination could blunt the vaccine response, Dr. Curtis said.

Holding medication, such as methotrexate, could risk having a flare-up of disease. One study showed the rate of disease flare-up because of withholding standard treatment may be up to 11%, compared with 5.1% in patients who did not hold treatment, he said.

“The point is, if you hold some of these therapies, whether methotrexate or tofacitinib, arthritis will get a little bit worse,” Dr. Curtis said.

A study published on the preprint server medRxiv found that immunosuppressive therapies blunted the response of SARS-CoV-2 vaccines in patients with chronic inflammatory diseases, most significantly with glucocorticoids and B-cell therapies.

“That’s what’s led to a lot of the guidance statements about holding treatments for a week or 2 for rituximab. If you’re giving it at 6-month intervals, you want to schedule the vaccine dose or series at about month 5, or a month before the next cycle,” he said.

Talking with patients about COVID-19 vaccination

In talking with patients about vaccine safety, Dr. Curtis recommends addressing a few common misperceptions. First, COVID-19 viruses were not created with a live-attenuated virus (which would be contraindicated for immunosuppressed patients). “You can put patients’ mind at ease that none of the vaccine candidates or platforms – even those that say viral vector – put patients at risk for contracting the infection. These are nonreplicating. So, it’s like you extracted the engine that would allow this virus to replicate,” he said.

Of three COVID-19 vaccinations available in the United States, is one better than the other? The ACR COVID-19 vaccine task force did not reach a consensus on safety profiles of the vaccines because, without head-to-head comparisons, it’s impossible to know, he said.

In talking with patients, review the protocol for continuing with prescribed treatment modalities before the patient receives a COVID-19 vaccine. Safety concerns and concerns about the possibility of having a disease flare-up should be addressed, he said.

Healthy first-degree relatives of individuals with HLA-B27–positive axial spondyloarthritis who also were HLA-B27 positive were at increased risk for developing the disease themselves within 1 year, based on data from an ongoing prospective cohort study that involved 202 first-degree relatives.

Axial spondyloarthritis (axSpA) generally arises between ages 18 and 40 years, but diagnosis can be delayed, in part because of the lack of biomarkers and nonspecific symptoms, wrote Henriëtte M.Y. de Jong, MD, PhD, of the University of Amsterdam, and colleagues.

Individuals who carry the HLA-B27 gene are predisposed to axSpA, and their first-degree relatives (FDRs) are at increased risk as well, the researchers said. Therefore, “studying [FDRs] could help to identify clinical signs, imaging abnormalities, and biomarkers that are predictive of development of axSpA,” they said.

In a study published in Arthritis Care & Research, the investigators reviewed data from patients in the Pre-SpA cohort, a 5-year prospective study of healthy-seeming FDRs of patients with HLA-B27–positive axSpA. The researchers previously reported that up to one-third of 51 FDRs had clinical features associated with SpA at baseline, despite the lack of a diagnosis.

The current study included an additional 151 FDRs who had answered yearly questions about back pain and undergone a yearly physical exam and plain radiographs and MRI imaging at baseline.

Overall, 65% reported back pain at baseline and 19% met criteria for inflammatory back pain, with a median visual analog score (VAS) for back pain of 22. No active arthritis was noted, but 5 FDRs reported a past arthritis diagnosis, 48 reported arthralgia, and 16 had at least one tender joint on physical exam. Eight FDRs had past diagnoses of enthesitis, and one had a history of dactylitis.

In assessing disease activity, the researchers found an elevated C-reactive protein (CRP) level in 24 FDRs and 11 had an elevated erythrocyte sedimentation rate (ESR).

On MRI of the sacroiliac joint at baseline, 10% of the FDRs had SPARCC (Spondyloarthritis Research Consortium of Canada) scores of 2 or higher, 4% had scores of 5 or higher, and 4% had deep lesions.

A total of 123 FDRs had complete data at a 1-year follow-up visit.

“All features were equally distributed between HLA-B27–positive and –negative FDRs,” the researchers noted. However, at the end of the 1-year follow-up period, seven (6%) of the FDRs were clinically diagnosed with axSpA, and six of them were HLA-B27 positive. Disease activity measures had increased at 1 year in all seven patients with newly diagnosed axSpA.

The study findings were limited by several factors, including the possible channeling of FDRs with current complaints of back pain into the study and the inability to confirm details of family and medical history, the researchers noted. However, the VAS back pain scores reported by the FDRs suggest that this pain was not a fixture in daily life, they wrote.

The results confirm the prevalent subclinical signs of SpA in healthy FDRs of patients with axSpA who were positive and negative for HLA-B27, but also confirm that clinical progression occurred primarily in the HLA-B27–positive patients in conjunction with inflammatory back pain, the researchers said.

“Further follow-up of the Pre-SpA cohort will give more robust insight into the characteristics of FDRs that progress towards clinical SpA, thereby hopefully enabling the characterization of high-risk FDRs,” they concluded.

The Pre-SpA cohort is supported by the Dutch Arthritis Society. Lead author Dr. de Jong had no financial conflicts to disclose. One coauthor is employed by UCB, and several others disclosed relationships with AbbVie, Eli Lilly, Janssen, Novartis, Pfizer, and UCB.

Healthy first-degree relatives of individuals with HLA-B27–positive axial spondyloarthritis who also were HLA-B27 positive were at increased risk for developing the disease themselves within 1 year, based on data from an ongoing prospective cohort study that involved 202 first-degree relatives.

Axial spondyloarthritis (axSpA) generally arises between ages 18 and 40 years, but diagnosis can be delayed, in part because of the lack of biomarkers and nonspecific symptoms, wrote Henriëtte M.Y. de Jong, MD, PhD, of the University of Amsterdam, and colleagues.

Individuals who carry the HLA-B27 gene are predisposed to axSpA, and their first-degree relatives (FDRs) are at increased risk as well, the researchers said. Therefore, “studying [FDRs] could help to identify clinical signs, imaging abnormalities, and biomarkers that are predictive of development of axSpA,” they said.

In a study published in Arthritis Care & Research, the investigators reviewed data from patients in the Pre-SpA cohort, a 5-year prospective study of healthy-seeming FDRs of patients with HLA-B27–positive axSpA. The researchers previously reported that up to one-third of 51 FDRs had clinical features associated with SpA at baseline, despite the lack of a diagnosis.

The current study included an additional 151 FDRs who had answered yearly questions about back pain and undergone a yearly physical exam and plain radiographs and MRI imaging at baseline.

Overall, 65% reported back pain at baseline and 19% met criteria for inflammatory back pain, with a median visual analog score (VAS) for back pain of 22. No active arthritis was noted, but 5 FDRs reported a past arthritis diagnosis, 48 reported arthralgia, and 16 had at least one tender joint on physical exam. Eight FDRs had past diagnoses of enthesitis, and one had a history of dactylitis.

In assessing disease activity, the researchers found an elevated C-reactive protein (CRP) level in 24 FDRs and 11 had an elevated erythrocyte sedimentation rate (ESR).

On MRI of the sacroiliac joint at baseline, 10% of the FDRs had SPARCC (Spondyloarthritis Research Consortium of Canada) scores of 2 or higher, 4% had scores of 5 or higher, and 4% had deep lesions.

A total of 123 FDRs had complete data at a 1-year follow-up visit.

“All features were equally distributed between HLA-B27–positive and –negative FDRs,” the researchers noted. However, at the end of the 1-year follow-up period, seven (6%) of the FDRs were clinically diagnosed with axSpA, and six of them were HLA-B27 positive. Disease activity measures had increased at 1 year in all seven patients with newly diagnosed axSpA.

The study findings were limited by several factors, including the possible channeling of FDRs with current complaints of back pain into the study and the inability to confirm details of family and medical history, the researchers noted. However, the VAS back pain scores reported by the FDRs suggest that this pain was not a fixture in daily life, they wrote.

The results confirm the prevalent subclinical signs of SpA in healthy FDRs of patients with axSpA who were positive and negative for HLA-B27, but also confirm that clinical progression occurred primarily in the HLA-B27–positive patients in conjunction with inflammatory back pain, the researchers said.

“Further follow-up of the Pre-SpA cohort will give more robust insight into the characteristics of FDRs that progress towards clinical SpA, thereby hopefully enabling the characterization of high-risk FDRs,” they concluded.

The Pre-SpA cohort is supported by the Dutch Arthritis Society. Lead author Dr. de Jong had no financial conflicts to disclose. One coauthor is employed by UCB, and several others disclosed relationships with AbbVie, Eli Lilly, Janssen, Novartis, Pfizer, and UCB.

Healthy first-degree relatives of individuals with HLA-B27–positive axial spondyloarthritis who also were HLA-B27 positive were at increased risk for developing the disease themselves within 1 year, based on data from an ongoing prospective cohort study that involved 202 first-degree relatives.

Axial spondyloarthritis (axSpA) generally arises between ages 18 and 40 years, but diagnosis can be delayed, in part because of the lack of biomarkers and nonspecific symptoms, wrote Henriëtte M.Y. de Jong, MD, PhD, of the University of Amsterdam, and colleagues.

Individuals who carry the HLA-B27 gene are predisposed to axSpA, and their first-degree relatives (FDRs) are at increased risk as well, the researchers said. Therefore, “studying [FDRs] could help to identify clinical signs, imaging abnormalities, and biomarkers that are predictive of development of axSpA,” they said.

In a study published in Arthritis Care & Research, the investigators reviewed data from patients in the Pre-SpA cohort, a 5-year prospective study of healthy-seeming FDRs of patients with HLA-B27–positive axSpA. The researchers previously reported that up to one-third of 51 FDRs had clinical features associated with SpA at baseline, despite the lack of a diagnosis.

The current study included an additional 151 FDRs who had answered yearly questions about back pain and undergone a yearly physical exam and plain radiographs and MRI imaging at baseline.

Overall, 65% reported back pain at baseline and 19% met criteria for inflammatory back pain, with a median visual analog score (VAS) for back pain of 22. No active arthritis was noted, but 5 FDRs reported a past arthritis diagnosis, 48 reported arthralgia, and 16 had at least one tender joint on physical exam. Eight FDRs had past diagnoses of enthesitis, and one had a history of dactylitis.

In assessing disease activity, the researchers found an elevated C-reactive protein (CRP) level in 24 FDRs and 11 had an elevated erythrocyte sedimentation rate (ESR).

On MRI of the sacroiliac joint at baseline, 10% of the FDRs had SPARCC (Spondyloarthritis Research Consortium of Canada) scores of 2 or higher, 4% had scores of 5 or higher, and 4% had deep lesions.

A total of 123 FDRs had complete data at a 1-year follow-up visit.

“All features were equally distributed between HLA-B27–positive and –negative FDRs,” the researchers noted. However, at the end of the 1-year follow-up period, seven (6%) of the FDRs were clinically diagnosed with axSpA, and six of them were HLA-B27 positive. Disease activity measures had increased at 1 year in all seven patients with newly diagnosed axSpA.

The study findings were limited by several factors, including the possible channeling of FDRs with current complaints of back pain into the study and the inability to confirm details of family and medical history, the researchers noted. However, the VAS back pain scores reported by the FDRs suggest that this pain was not a fixture in daily life, they wrote.

The results confirm the prevalent subclinical signs of SpA in healthy FDRs of patients with axSpA who were positive and negative for HLA-B27, but also confirm that clinical progression occurred primarily in the HLA-B27–positive patients in conjunction with inflammatory back pain, the researchers said.

“Further follow-up of the Pre-SpA cohort will give more robust insight into the characteristics of FDRs that progress towards clinical SpA, thereby hopefully enabling the characterization of high-risk FDRs,” they concluded.

The Pre-SpA cohort is supported by the Dutch Arthritis Society. Lead author Dr. de Jong had no financial conflicts to disclose. One coauthor is employed by UCB, and several others disclosed relationships with AbbVie, Eli Lilly, Janssen, Novartis, Pfizer, and UCB.

Malignancy rates were low in patients with psoriasis, psoriatic arthritis (PsA), and ankylosing spondylitis who were treated with secukinumab, for up to 5 years, based on data from a safety analysis that included 49 clinical trials.

Secukinumab (Cosentyx), an interleukin-17A antagonist, is approved for several conditions: moderate to severe psoriasis in children and adults, PsA, ankylosing spondylitis (AS), and nonradiographic axial spondyloarthritis.

Although secukinumab has demonstrated safety and tolerability, data on long-term malignancy rates are limited, wrote Mark Lebwohl, MD, professor of dermatology at the Icahn School of Medicine at Mount Sinai, New York, and coauthors.

In a study published in the British Journal of Dermatology, they analyzed the combined safety data from clinical trials and postmarketing surveillance. The study population included 10,685 patients with psoriasis, 2,523 patients with PsA, and 1,311 patients with ankylosing spondylitis who received at least one approved dose of secukinumab (300 mg or 150 mg). The maximum follow-up was 5 years. The exposure-adjusted incidence rate was defined as the incidence rates per 100 patient treatment-years (PTY). The cumulative exposure for patients with psoriasis, PsA, and AS was 16,482, 4,944, and 2,668 PTY, respectively, with average follow-up times of 1.54, 1.96, and 2.03 years, respectively.

The observed and the expected number of malignancies were comparable, with a standardized incidence ratio (SIR) for malignancy of 0.99 across all treatment indications, the researchers said. In further analysis of malignancy by indication, the SIR was 0.87, 1.16, and 1.61 for psoriasis, PsA, and AS, respectively.

Data from postmarketing surveillance showed similar results: The estimated crude cumulative incidence reporting rate per 100 PTY was 0.27 for malignancy across all indications. The cumulative exposure was 285,811 PTY.

The study findings were limited by several factors including the post hoc design, differences in clinical trial methodologies, and lack of controlling for confounding variables, such as smoking status and previous exposure to systemic and biologic treatments, the researchers noted. In addition, the analysis did not include postexposure follow-up data, or data on patients who discontinued clinical trials, they said.

Overall, the analysis is the largest to date and supports the low risk of malignancy in patients with psoriasis, PsA, and AS treated with secukinumab, the researchers noted.

However, “while this assessment provides a broader understanding of the safety of secukinumab and supports its long-term use in these chronic systemic inflammatory conditions, registry data are further warranted to fully understand the real-world effect of biologics on malignancy risk,” they concluded.

“Secukinumab is a relatively newer biologic, approved in 2015, and there is currently a lack of longer-term data on the incidence of malignancy in secukinumab-treated patients, so it’s important to look at the data we have so far on this topic so we can better understand the long-term risks and counsel our psoriasis and psoriatic arthritis patients,” Flavia Fedeles, MD, of the department of dermatology at Massachusetts General Hospital, Boston, said in an interview.

Dr. Fedeles, who was not involved with the study, said that she was not surprised by the study results. “Data reported in the past from phase 3 clinical trials of secukinumab compared with placebo did not show an increase in risk of malignancy, though at that time no long-term safety data or data from patients with history of malignancy was available,” she said. “This study is reassuring in that there wasn’t a signal of increased malignancy events up to 5 years of secukinumab treatment,” said Dr. Fedeles.

Malignancy rates were low in patients with psoriasis, psoriatic arthritis (PsA), and ankylosing spondylitis who were treated with secukinumab, for up to 5 years, based on data from a safety analysis that included 49 clinical trials.

Secukinumab (Cosentyx), an interleukin-17A antagonist, is approved for several conditions: moderate to severe psoriasis in children and adults, PsA, ankylosing spondylitis (AS), and nonradiographic axial spondyloarthritis.

Although secukinumab has demonstrated safety and tolerability, data on long-term malignancy rates are limited, wrote Mark Lebwohl, MD, professor of dermatology at the Icahn School of Medicine at Mount Sinai, New York, and coauthors.

In a study published in the British Journal of Dermatology, they analyzed the combined safety data from clinical trials and postmarketing surveillance. The study population included 10,685 patients with psoriasis, 2,523 patients with PsA, and 1,311 patients with ankylosing spondylitis who received at least one approved dose of secukinumab (300 mg or 150 mg). The maximum follow-up was 5 years. The exposure-adjusted incidence rate was defined as the incidence rates per 100 patient treatment-years (PTY). The cumulative exposure for patients with psoriasis, PsA, and AS was 16,482, 4,944, and 2,668 PTY, respectively, with average follow-up times of 1.54, 1.96, and 2.03 years, respectively.

The observed and the expected number of malignancies were comparable, with a standardized incidence ratio (SIR) for malignancy of 0.99 across all treatment indications, the researchers said. In further analysis of malignancy by indication, the SIR was 0.87, 1.16, and 1.61 for psoriasis, PsA, and AS, respectively.

Data from postmarketing surveillance showed similar results: The estimated crude cumulative incidence reporting rate per 100 PTY was 0.27 for malignancy across all indications. The cumulative exposure was 285,811 PTY.

The study findings were limited by several factors including the post hoc design, differences in clinical trial methodologies, and lack of controlling for confounding variables, such as smoking status and previous exposure to systemic and biologic treatments, the researchers noted. In addition, the analysis did not include postexposure follow-up data, or data on patients who discontinued clinical trials, they said.

Overall, the analysis is the largest to date and supports the low risk of malignancy in patients with psoriasis, PsA, and AS treated with secukinumab, the researchers noted.

However, “while this assessment provides a broader understanding of the safety of secukinumab and supports its long-term use in these chronic systemic inflammatory conditions, registry data are further warranted to fully understand the real-world effect of biologics on malignancy risk,” they concluded.

“Secukinumab is a relatively newer biologic, approved in 2015, and there is currently a lack of longer-term data on the incidence of malignancy in secukinumab-treated patients, so it’s important to look at the data we have so far on this topic so we can better understand the long-term risks and counsel our psoriasis and psoriatic arthritis patients,” Flavia Fedeles, MD, of the department of dermatology at Massachusetts General Hospital, Boston, said in an interview.

Dr. Fedeles, who was not involved with the study, said that she was not surprised by the study results. “Data reported in the past from phase 3 clinical trials of secukinumab compared with placebo did not show an increase in risk of malignancy, though at that time no long-term safety data or data from patients with history of malignancy was available,” she said. “This study is reassuring in that there wasn’t a signal of increased malignancy events up to 5 years of secukinumab treatment,” said Dr. Fedeles.

Malignancy rates were low in patients with psoriasis, psoriatic arthritis (PsA), and ankylosing spondylitis who were treated with secukinumab, for up to 5 years, based on data from a safety analysis that included 49 clinical trials.

Secukinumab (Cosentyx), an interleukin-17A antagonist, is approved for several conditions: moderate to severe psoriasis in children and adults, PsA, ankylosing spondylitis (AS), and nonradiographic axial spondyloarthritis.

Although secukinumab has demonstrated safety and tolerability, data on long-term malignancy rates are limited, wrote Mark Lebwohl, MD, professor of dermatology at the Icahn School of Medicine at Mount Sinai, New York, and coauthors.

In a study published in the British Journal of Dermatology, they analyzed the combined safety data from clinical trials and postmarketing surveillance. The study population included 10,685 patients with psoriasis, 2,523 patients with PsA, and 1,311 patients with ankylosing spondylitis who received at least one approved dose of secukinumab (300 mg or 150 mg). The maximum follow-up was 5 years. The exposure-adjusted incidence rate was defined as the incidence rates per 100 patient treatment-years (PTY). The cumulative exposure for patients with psoriasis, PsA, and AS was 16,482, 4,944, and 2,668 PTY, respectively, with average follow-up times of 1.54, 1.96, and 2.03 years, respectively.

The observed and the expected number of malignancies were comparable, with a standardized incidence ratio (SIR) for malignancy of 0.99 across all treatment indications, the researchers said. In further analysis of malignancy by indication, the SIR was 0.87, 1.16, and 1.61 for psoriasis, PsA, and AS, respectively.

Data from postmarketing surveillance showed similar results: The estimated crude cumulative incidence reporting rate per 100 PTY was 0.27 for malignancy across all indications. The cumulative exposure was 285,811 PTY.

The study findings were limited by several factors including the post hoc design, differences in clinical trial methodologies, and lack of controlling for confounding variables, such as smoking status and previous exposure to systemic and biologic treatments, the researchers noted. In addition, the analysis did not include postexposure follow-up data, or data on patients who discontinued clinical trials, they said.

Overall, the analysis is the largest to date and supports the low risk of malignancy in patients with psoriasis, PsA, and AS treated with secukinumab, the researchers noted.

However, “while this assessment provides a broader understanding of the safety of secukinumab and supports its long-term use in these chronic systemic inflammatory conditions, registry data are further warranted to fully understand the real-world effect of biologics on malignancy risk,” they concluded.

“Secukinumab is a relatively newer biologic, approved in 2015, and there is currently a lack of longer-term data on the incidence of malignancy in secukinumab-treated patients, so it’s important to look at the data we have so far on this topic so we can better understand the long-term risks and counsel our psoriasis and psoriatic arthritis patients,” Flavia Fedeles, MD, of the department of dermatology at Massachusetts General Hospital, Boston, said in an interview.

Dr. Fedeles, who was not involved with the study, said that she was not surprised by the study results. “Data reported in the past from phase 3 clinical trials of secukinumab compared with placebo did not show an increase in risk of malignancy, though at that time no long-term safety data or data from patients with history of malignancy was available,” she said. “This study is reassuring in that there wasn’t a signal of increased malignancy events up to 5 years of secukinumab treatment,” said Dr. Fedeles.

Tumor necrosis factor inhibitors reduce both spinal and sacroiliac radiographic progression in early axial spondyloarthritis (axSpA), but the effects take time.

According to data from the German Spondyloarthritis Inception Cohort (GESPIC), it could take 2-4 years after the initiation of TNF inhibitor treatment before x-rays will show any sign of a benefit in either the spine or sacroiliac joints (SIJ).

“The association between anti-TNF treatment and the retardation of radiographic spinal progression in spondyloarthritis appears to be time-shifted,” GESPIC study investigator Denis Poddubnyy, MD, said at the annual European Congress of Rheumatology.

Reporting the spinal findings, Dr. Poddubnyy, who is head of the rheumatology department at Campus Benjamin Franklin of the Charité University Hospital in Berlin noted that “at least 4 years of observation is required” to see an effect of TNF inhibitors on new bone formation. “This might be related to the intermediate and long-lasting process of bone repair that follows the resolution of inflammation and precedes the development of new bone,” he suggested.

The effect on the SIJ may precede the spinal damage, so it’s important to look at how anti-inflammatory treatment might affect the SIJ, Dr. Poddubnyy said in an interview. Results from the SIJ analysis, which were presented by Murat Torgutalp, MD, suggested that there might be a 2-year time lag between TNFi treatment and being able to see something on x-rays.

“Everybody in the past focused on the spine, considering that spinal changes are functionally more relevant than changes in the SIJ,” Dr. Poddubnyy observed.

Structural damage in the spine and SIJ in radiographic axSpA probably occur by different processes, he explained. While it’s more to do with new bone formation in the spine, it’s more to do with erosive damage followed by repair in the SIJ. “It is very likely that in the majority of patients we see that those two processes are somehow disconnected in time,” he suggested.

The GESPIC cohort provides a good base from which to examine the effects of TNF inhibitors on radiographic progression in patients with axSpA for several reasons, observed Dr. Poddubnyy. For one it was established in 2000, so “well before the introduction of TNF-alpha inhibitors.” That means that almost all patients would have been put on TNF inhibitors while enrolled in the cohort, he said, “so we could really follow up them prospectively for a few years.” In fact, just nine patients had been treated with TNF inhibitors at baseline.

Spinal findings

Although TNF inhibitors are widely accepted to be effective anti-inflammatory drugs that can relieve patients’ spinal symptoms, there were inconclusive data on whether they can also have an impact on radiographic progression.

To look at the possible immediate or later effect of TNF inhibitors on spinal radiographic progression, the GESPIC investigators looked at sets of radiographs, taken at least 2 years apart over a 10-year period, from 266 patients, 77 of whom who had been treated with a TNF inhibitor for at least 12 months or more. Overall, there were 103 2-year intervals covered by TNF inhibitor treatment of any duration, and 78 intervals in which treatment had lasted for at least 12 months.

“This cohort included patients with quite early disease, including both nonradiographic and radiographic forms,” Dr. Poddubnyy said, adding that some patients had been treated with a TNF inhibitor for up to 10 years.

While there were no significant changes in radiographic progression as measured using the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS) between patients who had and who had not received at least 12 months’ TNF inhibitor therapy in the first 2 years, there was a substantial difference after 4 years.

The mSASSS change in scores over 2 years in patients who were and were not treated with a TNF inhibitor for 12 months or more were a respective 0.35 and 0.81 (P = .047) considering treatment in the previous 2-year treatment period, and 0.33 and 0.77 (also P = .047) considering treatment in the prior 2-year treatment period and the current 2-year period.

“Our interpretation is that within the first 2 years we see a resolution of inflammation, a process of repair, maybe even a process of bone formation, but then if you continue this inflammation control for longer than 2 years, then we see the effect on structural damage,” Dr. Poddubnyy said.

SIJ findings

The SIJ analysis included 301 patients who had at least two sets of radiographs taken every 2 years over a 10-year follow-up period, 87 (28.9%) of whom had been treated with at least one TNF inhibitor during follow-up.

Radiographic SIJ progression was defined as the change in the sacroiliitis sum score over 2 years. Calculations considered both the current 2-year period and the previous 2-year period, as well as any use of TNF inhibitors or more than 12 months’ use.

There were no significant differences in sacroiliitis sum scores comparing people who were and were not treated with TNF inhibitors for at least 12 months in the current 2-year period. However, when the previous 2-year period was looked at there was a significant difference in the score between those who had and had not been treated for 12 or more months (0.15 vs. 0.27, respectively; P = .024).

“These data indicate that TNF inhibitors have a late effect,” Dr. Torgutalp said. “You cannot observe the effect of the TNF inhibitor on radiographic progression in the same interval, you have to wait to see this effect in the next interval,” he explained. That means that when a patient uses a TNF inhibitor, you must wait to see the effect on SIJ progression in the subsequent 2 years, he qualified.

Lessons for practice

“If we control inflammation, we might control structural damage progression,” Dr. Poddubnyy said.

If this is the case, then it is likely that other drugs that control inflammation in axSpA will have a similar effect, such as those that target interleukin-17 or Janus kinases. This is something in the future to look at in the GESPIC cohort once enough patient-years of data are available.

Early treatment is probably important, Dr. Poddubnyy suggested, “because in patients with early disease we can expect not that much structural damage at baseline.” Starting treatment early, at the inflammatory stage rather than at the stage where there was a lot of damage already there, could yield better results, he proposed.

“As a clinician, as a researcher, I would be really interested in demonstrating in a prospective, clinical trial that treating patients to target, achieving a remission, would be associated with retardation of structural damage progression. This has only been shown in observational studies so far, so this is an open question.”

Questions on adjustments made for confounding factors

Questions on the spinal presentation included whether there were any differences in NSAID use, to which Dr. Poddubnyy responded, “Patients on TNF inhibitors normally reduce NSAIDs. We adjusted, therefore, for NSAID use.”

The SIJ presentation garnered more questioning. Dr. Torgutalp qualified that both radiographic and nonradiographic patients had been included in the analysis, and “we observe the same effect.”

Asked how clinically relevant the findings were, he noted that, “to the best of our knowledge, this is the first data for sacroiliac joint progression.” The data for spinal progression seem to “reconcile the results from previous investigators,” where there had been some conflicting data on whether 2 or 4 years’ TNF-inhibitor therapy had any effect on radiographic progression.

“I don’t think you’ve adjusted for the baseline level of damage of the SIJ?” queried Pedro Machado, MD, of University College London Hospital. “As you know, in the spine, but also at the SIJ level, the baseline level of damage is usually one of the strongest predictors of further damage.”

This is not something that was adjusted for, Dr. Torgutalp conceded. “We will do it for further analysis,” he said.

Since 2010, GESPIC has been supported by grants from AbbVie. Dr. Poddubnyy reported financial relationships with AbbVie and numerous other pharmaceutical companies. Dr. Torgutalp had no relevant disclosures.

Tumor necrosis factor inhibitors reduce both spinal and sacroiliac radiographic progression in early axial spondyloarthritis (axSpA), but the effects take time.

According to data from the German Spondyloarthritis Inception Cohort (GESPIC), it could take 2-4 years after the initiation of TNF inhibitor treatment before x-rays will show any sign of a benefit in either the spine or sacroiliac joints (SIJ).

“The association between anti-TNF treatment and the retardation of radiographic spinal progression in spondyloarthritis appears to be time-shifted,” GESPIC study investigator Denis Poddubnyy, MD, said at the annual European Congress of Rheumatology.

Reporting the spinal findings, Dr. Poddubnyy, who is head of the rheumatology department at Campus Benjamin Franklin of the Charité University Hospital in Berlin noted that “at least 4 years of observation is required” to see an effect of TNF inhibitors on new bone formation. “This might be related to the intermediate and long-lasting process of bone repair that follows the resolution of inflammation and precedes the development of new bone,” he suggested.

The effect on the SIJ may precede the spinal damage, so it’s important to look at how anti-inflammatory treatment might affect the SIJ, Dr. Poddubnyy said in an interview. Results from the SIJ analysis, which were presented by Murat Torgutalp, MD, suggested that there might be a 2-year time lag between TNFi treatment and being able to see something on x-rays.

“Everybody in the past focused on the spine, considering that spinal changes are functionally more relevant than changes in the SIJ,” Dr. Poddubnyy observed.

Structural damage in the spine and SIJ in radiographic axSpA probably occur by different processes, he explained. While it’s more to do with new bone formation in the spine, it’s more to do with erosive damage followed by repair in the SIJ. “It is very likely that in the majority of patients we see that those two processes are somehow disconnected in time,” he suggested.

The GESPIC cohort provides a good base from which to examine the effects of TNF inhibitors on radiographic progression in patients with axSpA for several reasons, observed Dr. Poddubnyy. For one it was established in 2000, so “well before the introduction of TNF-alpha inhibitors.” That means that almost all patients would have been put on TNF inhibitors while enrolled in the cohort, he said, “so we could really follow up them prospectively for a few years.” In fact, just nine patients had been treated with TNF inhibitors at baseline.

Spinal findings

Although TNF inhibitors are widely accepted to be effective anti-inflammatory drugs that can relieve patients’ spinal symptoms, there were inconclusive data on whether they can also have an impact on radiographic progression.

To look at the possible immediate or later effect of TNF inhibitors on spinal radiographic progression, the GESPIC investigators looked at sets of radiographs, taken at least 2 years apart over a 10-year period, from 266 patients, 77 of whom who had been treated with a TNF inhibitor for at least 12 months or more. Overall, there were 103 2-year intervals covered by TNF inhibitor treatment of any duration, and 78 intervals in which treatment had lasted for at least 12 months.

“This cohort included patients with quite early disease, including both nonradiographic and radiographic forms,” Dr. Poddubnyy said, adding that some patients had been treated with a TNF inhibitor for up to 10 years.

While there were no significant changes in radiographic progression as measured using the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS) between patients who had and who had not received at least 12 months’ TNF inhibitor therapy in the first 2 years, there was a substantial difference after 4 years.

The mSASSS change in scores over 2 years in patients who were and were not treated with a TNF inhibitor for 12 months or more were a respective 0.35 and 0.81 (P = .047) considering treatment in the previous 2-year treatment period, and 0.33 and 0.77 (also P = .047) considering treatment in the prior 2-year treatment period and the current 2-year period.

“Our interpretation is that within the first 2 years we see a resolution of inflammation, a process of repair, maybe even a process of bone formation, but then if you continue this inflammation control for longer than 2 years, then we see the effect on structural damage,” Dr. Poddubnyy said.

SIJ findings

The SIJ analysis included 301 patients who had at least two sets of radiographs taken every 2 years over a 10-year follow-up period, 87 (28.9%) of whom had been treated with at least one TNF inhibitor during follow-up.

Radiographic SIJ progression was defined as the change in the sacroiliitis sum score over 2 years. Calculations considered both the current 2-year period and the previous 2-year period, as well as any use of TNF inhibitors or more than 12 months’ use.

There were no significant differences in sacroiliitis sum scores comparing people who were and were not treated with TNF inhibitors for at least 12 months in the current 2-year period. However, when the previous 2-year period was looked at there was a significant difference in the score between those who had and had not been treated for 12 or more months (0.15 vs. 0.27, respectively; P = .024).

“These data indicate that TNF inhibitors have a late effect,” Dr. Torgutalp said. “You cannot observe the effect of the TNF inhibitor on radiographic progression in the same interval, you have to wait to see this effect in the next interval,” he explained. That means that when a patient uses a TNF inhibitor, you must wait to see the effect on SIJ progression in the subsequent 2 years, he qualified.

Lessons for practice

“If we control inflammation, we might control structural damage progression,” Dr. Poddubnyy said.

If this is the case, then it is likely that other drugs that control inflammation in axSpA will have a similar effect, such as those that target interleukin-17 or Janus kinases. This is something in the future to look at in the GESPIC cohort once enough patient-years of data are available.

Early treatment is probably important, Dr. Poddubnyy suggested, “because in patients with early disease we can expect not that much structural damage at baseline.” Starting treatment early, at the inflammatory stage rather than at the stage where there was a lot of damage already there, could yield better results, he proposed.

“As a clinician, as a researcher, I would be really interested in demonstrating in a prospective, clinical trial that treating patients to target, achieving a remission, would be associated with retardation of structural damage progression. This has only been shown in observational studies so far, so this is an open question.”

Questions on adjustments made for confounding factors

Questions on the spinal presentation included whether there were any differences in NSAID use, to which Dr. Poddubnyy responded, “Patients on TNF inhibitors normally reduce NSAIDs. We adjusted, therefore, for NSAID use.”

The SIJ presentation garnered more questioning. Dr. Torgutalp qualified that both radiographic and nonradiographic patients had been included in the analysis, and “we observe the same effect.”

Asked how clinically relevant the findings were, he noted that, “to the best of our knowledge, this is the first data for sacroiliac joint progression.” The data for spinal progression seem to “reconcile the results from previous investigators,” where there had been some conflicting data on whether 2 or 4 years’ TNF-inhibitor therapy had any effect on radiographic progression.

“I don’t think you’ve adjusted for the baseline level of damage of the SIJ?” queried Pedro Machado, MD, of University College London Hospital. “As you know, in the spine, but also at the SIJ level, the baseline level of damage is usually one of the strongest predictors of further damage.”

This is not something that was adjusted for, Dr. Torgutalp conceded. “We will do it for further analysis,” he said.

Since 2010, GESPIC has been supported by grants from AbbVie. Dr. Poddubnyy reported financial relationships with AbbVie and numerous other pharmaceutical companies. Dr. Torgutalp had no relevant disclosures.

Tumor necrosis factor inhibitors reduce both spinal and sacroiliac radiographic progression in early axial spondyloarthritis (axSpA), but the effects take time.

According to data from the German Spondyloarthritis Inception Cohort (GESPIC), it could take 2-4 years after the initiation of TNF inhibitor treatment before x-rays will show any sign of a benefit in either the spine or sacroiliac joints (SIJ).

“The association between anti-TNF treatment and the retardation of radiographic spinal progression in spondyloarthritis appears to be time-shifted,” GESPIC study investigator Denis Poddubnyy, MD, said at the annual European Congress of Rheumatology.

Reporting the spinal findings, Dr. Poddubnyy, who is head of the rheumatology department at Campus Benjamin Franklin of the Charité University Hospital in Berlin noted that “at least 4 years of observation is required” to see an effect of TNF inhibitors on new bone formation. “This might be related to the intermediate and long-lasting process of bone repair that follows the resolution of inflammation and precedes the development of new bone,” he suggested.

The effect on the SIJ may precede the spinal damage, so it’s important to look at how anti-inflammatory treatment might affect the SIJ, Dr. Poddubnyy said in an interview. Results from the SIJ analysis, which were presented by Murat Torgutalp, MD, suggested that there might be a 2-year time lag between TNFi treatment and being able to see something on x-rays.

“Everybody in the past focused on the spine, considering that spinal changes are functionally more relevant than changes in the SIJ,” Dr. Poddubnyy observed.

Structural damage in the spine and SIJ in radiographic axSpA probably occur by different processes, he explained. While it’s more to do with new bone formation in the spine, it’s more to do with erosive damage followed by repair in the SIJ. “It is very likely that in the majority of patients we see that those two processes are somehow disconnected in time,” he suggested.

The GESPIC cohort provides a good base from which to examine the effects of TNF inhibitors on radiographic progression in patients with axSpA for several reasons, observed Dr. Poddubnyy. For one it was established in 2000, so “well before the introduction of TNF-alpha inhibitors.” That means that almost all patients would have been put on TNF inhibitors while enrolled in the cohort, he said, “so we could really follow up them prospectively for a few years.” In fact, just nine patients had been treated with TNF inhibitors at baseline.

Spinal findings

Although TNF inhibitors are widely accepted to be effective anti-inflammatory drugs that can relieve patients’ spinal symptoms, there were inconclusive data on whether they can also have an impact on radiographic progression.

To look at the possible immediate or later effect of TNF inhibitors on spinal radiographic progression, the GESPIC investigators looked at sets of radiographs, taken at least 2 years apart over a 10-year period, from 266 patients, 77 of whom who had been treated with a TNF inhibitor for at least 12 months or more. Overall, there were 103 2-year intervals covered by TNF inhibitor treatment of any duration, and 78 intervals in which treatment had lasted for at least 12 months.

“This cohort included patients with quite early disease, including both nonradiographic and radiographic forms,” Dr. Poddubnyy said, adding that some patients had been treated with a TNF inhibitor for up to 10 years.

While there were no significant changes in radiographic progression as measured using the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS) between patients who had and who had not received at least 12 months’ TNF inhibitor therapy in the first 2 years, there was a substantial difference after 4 years.

The mSASSS change in scores over 2 years in patients who were and were not treated with a TNF inhibitor for 12 months or more were a respective 0.35 and 0.81 (P = .047) considering treatment in the previous 2-year treatment period, and 0.33 and 0.77 (also P = .047) considering treatment in the prior 2-year treatment period and the current 2-year period.

“Our interpretation is that within the first 2 years we see a resolution of inflammation, a process of repair, maybe even a process of bone formation, but then if you continue this inflammation control for longer than 2 years, then we see the effect on structural damage,” Dr. Poddubnyy said.

SIJ findings

The SIJ analysis included 301 patients who had at least two sets of radiographs taken every 2 years over a 10-year follow-up period, 87 (28.9%) of whom had been treated with at least one TNF inhibitor during follow-up.

Radiographic SIJ progression was defined as the change in the sacroiliitis sum score over 2 years. Calculations considered both the current 2-year period and the previous 2-year period, as well as any use of TNF inhibitors or more than 12 months’ use.

There were no significant differences in sacroiliitis sum scores comparing people who were and were not treated with TNF inhibitors for at least 12 months in the current 2-year period. However, when the previous 2-year period was looked at there was a significant difference in the score between those who had and had not been treated for 12 or more months (0.15 vs. 0.27, respectively; P = .024).

“These data indicate that TNF inhibitors have a late effect,” Dr. Torgutalp said. “You cannot observe the effect of the TNF inhibitor on radiographic progression in the same interval, you have to wait to see this effect in the next interval,” he explained. That means that when a patient uses a TNF inhibitor, you must wait to see the effect on SIJ progression in the subsequent 2 years, he qualified.

Lessons for practice

“If we control inflammation, we might control structural damage progression,” Dr. Poddubnyy said.

If this is the case, then it is likely that other drugs that control inflammation in axSpA will have a similar effect, such as those that target interleukin-17 or Janus kinases. This is something in the future to look at in the GESPIC cohort once enough patient-years of data are available.

Early treatment is probably important, Dr. Poddubnyy suggested, “because in patients with early disease we can expect not that much structural damage at baseline.” Starting treatment early, at the inflammatory stage rather than at the stage where there was a lot of damage already there, could yield better results, he proposed.

“As a clinician, as a researcher, I would be really interested in demonstrating in a prospective, clinical trial that treating patients to target, achieving a remission, would be associated with retardation of structural damage progression. This has only been shown in observational studies so far, so this is an open question.”

Questions on adjustments made for confounding factors

Questions on the spinal presentation included whether there were any differences in NSAID use, to which Dr. Poddubnyy responded, “Patients on TNF inhibitors normally reduce NSAIDs. We adjusted, therefore, for NSAID use.”

The SIJ presentation garnered more questioning. Dr. Torgutalp qualified that both radiographic and nonradiographic patients had been included in the analysis, and “we observe the same effect.”

Asked how clinically relevant the findings were, he noted that, “to the best of our knowledge, this is the first data for sacroiliac joint progression.” The data for spinal progression seem to “reconcile the results from previous investigators,” where there had been some conflicting data on whether 2 or 4 years’ TNF-inhibitor therapy had any effect on radiographic progression.

“I don’t think you’ve adjusted for the baseline level of damage of the SIJ?” queried Pedro Machado, MD, of University College London Hospital. “As you know, in the spine, but also at the SIJ level, the baseline level of damage is usually one of the strongest predictors of further damage.”

This is not something that was adjusted for, Dr. Torgutalp conceded. “We will do it for further analysis,” he said.

Since 2010, GESPIC has been supported by grants from AbbVie. Dr. Poddubnyy reported financial relationships with AbbVie and numerous other pharmaceutical companies. Dr. Torgutalp had no relevant disclosures.

Ten percent of patients with immune-mediated inflammatory diseases (IMIDs) fail to respond properly to COVID-19 vaccinations regardless of medication, researchers report, and small new studies suggest those on methotrexate and rituximab may be especially vulnerable to vaccine failure.

Even so, it’s still crucially vital for patients with IMIDs to get vaccinated and for clinicians to follow recommendations to temporarily withhold certain medications around the time of vaccination, rheumatologist Anne R. Bass, MD, of Weill Cornell Medicine and the Hospital for Special Surgery, New York, said in an interview. “We’re not making any significant adjustments,” added Dr. Bass, a coauthor of the American College of Rheumatology’s COVID-19 vaccination guidelines for patients with rheumatic and musculoskeletal diseases.

The findings appear in a trio of studies in Annals of the Rheumatic Diseases. The most recent study, which appeared May 25, 2021, found that more than one-third of patients with IMIDs who took methotrexate didn’t produce adequate antibody levels after vaccination versus 10% of those in other groups. (P < .001) A May 11 study found that 20 of 30 patients with rheumatic diseases on rituximab failed to respond to vaccination. And a May 6 study reported that immune responses against SARS-CoV-2 are “somewhat delayed and reduced” in patients with IMID, with 99.5% of a control group developing neutralizing antibody activity after vaccination versus 90% of those with IMID (P = .0008).


 

Development of neutralizing antibodies somewhat delayed and reduced

Team members were surprised by the high number of vaccine nonresponders in the May 6 IMID study, coauthor Georg Schett, MD, of Germany’s Friedrich-Alexander University Erlangen-Nuremberg and University Hospital Erlangen, said in an interview.

The researchers compared two groups of patients who had no history of COVID-19 and received COVID-19 vaccinations, mostly two shots of the Pfizer-BioNTech vaccine (96%): 84 with IMID (mean age, 53.1 years; 65.5% females) and 182 healthy controls (mean age, 40.8 years; 57.1% females).

The patients with IMID most commonly had spondyloarthritis (32.1%), RA (29.8%), inflammatory bowel disease (9.5%), and psoriasis (9.5%). Nearly 43% of the patients were treated with biologic and targeted synthetic disease-modifying antirheumatic drugs and 23.9% with conventional synthetic DMARDSs. Another 29% were not treated.

All of the controls developed anti–SARS-CoV-2 IgG, but 6% of the patients with IMID did not (P = .003). The gap in development of neutralizing antibodies was even higher: 99.5% of the controls developed neutralizing antibody activity versus 90% of the IMID group. “Neutralizing antibodies are more relevant because the test shows how much the antibodies interfere with the binding of SARS-CoV-2 proteins to the receptor,” Dr. Schett said.

The study authors concluded that “our study provides evidence that, while vaccination against SARS-CoV-2 is well tolerated and even associated with lower incidence of side effects in patients with IMID, its efficacy is somewhat delayed and reduced. Nonetheless, the data also show that, in principle, patients with IMID respond to SARS-CoV-2 vaccination, supporting an aggressive vaccination strategy.”
 

Lowered antibody response to vaccination for some methotrexate users

In the newer study, led by Rebecca H. Haberman, MD, of New York University Langone Health, researchers examined COVID-19 vaccine response in cohorts in New York City and Erlangen, Germany.

The New York cohort included 25 patients with IMID who were taking methotrexate by itself or with other immunomodulatory medications (mean age, 63.2 years), 26 with IMID who were on anticytokine therapy and/or other oral immunomodulators (mean age, 49.1 years) and 26 healthy controls (mean age, 49.2 years). Most patients with IMID had psoriasis/psoriatic arthritis or RA.

The German validation cohort included 182 healthy subjects (mean age, 45.0 years), 11 subjects with IMID who received TNF inhibitor monotherapy (mean age, 40.8 years), and 20 subjects with IMID on methotrexate monotherapy (mean age, 54.5 years).

In the New York cohort, 96.1% of healthy controls showed “adequate humoral immune response,” along with 92.3% of patients with IMID who weren’t taking methotrexate. However, those on methotrexate had a lower rate of adequate response (72.0%), and the gap persisted even after researchers removed those who showed signs of previous COVID-19 infection (P = .045).

In the German cohort, 98.3% of healthy cohorts and 90.9% of patients with IMID who didn’t receive methotrexate reached an “adequate” humoral response versus just half (50.0%) of those who were taking methotrexate.

When both cohorts are combined, over 90% of the healthy subjects and the patients with IMID on biologic treatments (mainly TNF blockers, n = 37) showed “robust” antibody response. However, only 62% of patients with IMID who took methotrexate (n = 45) reached an “adequate” level of response. The methotrexate gap remained after researchers accounted for differences in age among the cohorts.

What’s going on? “We think that the underlying chronic immune stimulation in autoimmune patients may cause T-cell exhaustion and thus blunts the immune response,” said Dr. Schett, who’s also a coauthor of this study. “In addition, specific drugs such as methotrexate could additionally impair the immune response.”

Still, the findings “reiterate that vaccinations are safe and effective, which is what the recommendations state,” he said, adding that more testing of vaccination immune response is wise.
 

Insights into vaccine response while on rituximab

Two more reports, also published in Annals of the Rheumatic Diseases, offer insight into vaccine response in patients with IMID who take rituximab.

Ridofranz/Getty Images

In one report, published May 11, U.S. researchers retrospectively tracked 89 rheumatic disease patients (76% female; mean age, 61) at a single clinic who’d received at least one dose of a COVID-19 vaccine. Of those, 21 patients showed no sign of vaccine antibody response, and 20 of them were in the group taking rituximab. (The other patient was taking belimumab.) Another 10 patients taking rituximab did show a response.

“Longer duration from most recent rituximab exposure was associated with a greater likelihood of response,” the report’s authors wrote. “The results suggest that time from last rituximab exposure is an important consideration in maximizing the likelihood of a serological response, but this likely is related to the substantial variation in the period of B-cell depletion following rituximab.”

Finally, an Austrian report published May 6 examined COVID-19 vaccine immune response in five patients who were taking rituximab (four with other drugs such as methotrexate and prednisone). Researchers compared them with eight healthy controls, half who’d been vaccinated.

The researchers found evidence that rituximab “may not have to preclude SARS-CoV-2 vaccination, since a cellular immune response will be mounted even in the absence of circulating B cells. Alternatively, in patients with stable disease, delaying [rituximab] treatment until after the second vaccination may be warranted and, therefore, vaccines with a short interval between first and second vaccination or those showing full protection after a single vaccination may be preferable. Importantly, in the presence of circulating B cells also a humoral immune response may be expected despite prior [rituximab] therapy.”

Dr. Bass said the findings reflect growing awareness that “patients with autoimmune disease, especially when they’re on immunosuppressant medications, don’t quite have as optimal responses to the vaccinations.” However, she said, the vaccines are so potent that they’re likely to still have significant efficacy in these patients even if there’s a reduction in response.

What’s next? Dr. Schett said “testing immune response to vaccination is important for patients with autoimmune disease. Some of them may need a third vaccination.”

The American College of Rheumatology’s COVID-19 vaccination guidelines do not recommend third vaccinations or postvaccination immune testing at this time. However, Dr. Bass, one of the coauthors of the recommendations, said it’s likely that postvaccination immune testing and booster shots will become routine.

Dr. Bass reported no relevant disclosures. Dr. Schett reported receiving consulting fees from AbbVie. The May 6 German vaccine study was funded by Deutsche Forschungsgemeinschaft, Bundesministerium für Bildung und Forschung, the ERC Synergy grant 4D Nanoscope, the IMI funded project RTCure, the Emerging Fields Initiative MIRACLE of the Friedrich-Alexander-Universität Erlangen-Nürnberg, the Schreiber Stiftung, and the Else Kröner-Memorial Scholarship. The study authors reported no disclosures. The May 25 study of German and American cohorts was funded by the National Institute of Arthritis and Musculoskletal and Skin Diseases, National Institute of Allergy and Infectious Diseases, Rheumatology Research Foundation, Bloomberg Philanthropies COVID-19 Initiative, Pfizer COVID-19 Competitive Grant Program, Beatrice Snyder Foundation, Riley Family Foundation, National Psoriasis Foundation, and Deutsche Forschungsgemeinschaft. The authors reported a range of financial relationships with pharmaceutical companies. No specific funding was reported for the other two studies mentioned.

Ten percent of patients with immune-mediated inflammatory diseases (IMIDs) fail to respond properly to COVID-19 vaccinations regardless of medication, researchers report, and small new studies suggest those on methotrexate and rituximab may be especially vulnerable to vaccine failure.

Even so, it’s still crucially vital for patients with IMIDs to get vaccinated and for clinicians to follow recommendations to temporarily withhold certain medications around the time of vaccination, rheumatologist Anne R. Bass, MD, of Weill Cornell Medicine and the Hospital for Special Surgery, New York, said in an interview. “We’re not making any significant adjustments,” added Dr. Bass, a coauthor of the American College of Rheumatology’s COVID-19 vaccination guidelines for patients with rheumatic and musculoskeletal diseases.

The findings appear in a trio of studies in Annals of the Rheumatic Diseases. The most recent study, which appeared May 25, 2021, found that more than one-third of patients with IMIDs who took methotrexate didn’t produce adequate antibody levels after vaccination versus 10% of those in other groups. (P < .001) A May 11 study found that 20 of 30 patients with rheumatic diseases on rituximab failed to respond to vaccination. And a May 6 study reported that immune responses against SARS-CoV-2 are “somewhat delayed and reduced” in patients with IMID, with 99.5% of a control group developing neutralizing antibody activity after vaccination versus 90% of those with IMID (P = .0008).


 

Development of neutralizing antibodies somewhat delayed and reduced

Team members were surprised by the high number of vaccine nonresponders in the May 6 IMID study, coauthor Georg Schett, MD, of Germany’s Friedrich-Alexander University Erlangen-Nuremberg and University Hospital Erlangen, said in an interview.

The researchers compared two groups of patients who had no history of COVID-19 and received COVID-19 vaccinations, mostly two shots of the Pfizer-BioNTech vaccine (96%): 84 with IMID (mean age, 53.1 years; 65.5% females) and 182 healthy controls (mean age, 40.8 years; 57.1% females).

The patients with IMID most commonly had spondyloarthritis (32.1%), RA (29.8%), inflammatory bowel disease (9.5%), and psoriasis (9.5%). Nearly 43% of the patients were treated with biologic and targeted synthetic disease-modifying antirheumatic drugs and 23.9% with conventional synthetic DMARDSs. Another 29% were not treated.

All of the controls developed anti–SARS-CoV-2 IgG, but 6% of the patients with IMID did not (P = .003). The gap in development of neutralizing antibodies was even higher: 99.5% of the controls developed neutralizing antibody activity versus 90% of the IMID group. “Neutralizing antibodies are more relevant because the test shows how much the antibodies interfere with the binding of SARS-CoV-2 proteins to the receptor,” Dr. Schett said.

The study authors concluded that “our study provides evidence that, while vaccination against SARS-CoV-2 is well tolerated and even associated with lower incidence of side effects in patients with IMID, its efficacy is somewhat delayed and reduced. Nonetheless, the data also show that, in principle, patients with IMID respond to SARS-CoV-2 vaccination, supporting an aggressive vaccination strategy.”
 

Lowered antibody response to vaccination for some methotrexate users

In the newer study, led by Rebecca H. Haberman, MD, of New York University Langone Health, researchers examined COVID-19 vaccine response in cohorts in New York City and Erlangen, Germany.

The New York cohort included 25 patients with IMID who were taking methotrexate by itself or with other immunomodulatory medications (mean age, 63.2 years), 26 with IMID who were on anticytokine therapy and/or other oral immunomodulators (mean age, 49.1 years) and 26 healthy controls (mean age, 49.2 years). Most patients with IMID had psoriasis/psoriatic arthritis or RA.

The German validation cohort included 182 healthy subjects (mean age, 45.0 years), 11 subjects with IMID who received TNF inhibitor monotherapy (mean age, 40.8 years), and 20 subjects with IMID on methotrexate monotherapy (mean age, 54.5 years).

In the New York cohort, 96.1% of healthy controls showed “adequate humoral immune response,” along with 92.3% of patients with IMID who weren’t taking methotrexate. However, those on methotrexate had a lower rate of adequate response (72.0%), and the gap persisted even after researchers removed those who showed signs of previous COVID-19 infection (P = .045).

In the German cohort, 98.3% of healthy cohorts and 90.9% of patients with IMID who didn’t receive methotrexate reached an “adequate” humoral response versus just half (50.0%) of those who were taking methotrexate.

When both cohorts are combined, over 90% of the healthy subjects and the patients with IMID on biologic treatments (mainly TNF blockers, n = 37) showed “robust” antibody response. However, only 62% of patients with IMID who took methotrexate (n = 45) reached an “adequate” level of response. The methotrexate gap remained after researchers accounted for differences in age among the cohorts.

What’s going on? “We think that the underlying chronic immune stimulation in autoimmune patients may cause T-cell exhaustion and thus blunts the immune response,” said Dr. Schett, who’s also a coauthor of this study. “In addition, specific drugs such as methotrexate could additionally impair the immune response.”

Still, the findings “reiterate that vaccinations are safe and effective, which is what the recommendations state,” he said, adding that more testing of vaccination immune response is wise.
 

Insights into vaccine response while on rituximab

Two more reports, also published in Annals of the Rheumatic Diseases, offer insight into vaccine response in patients with IMID who take rituximab.

Ridofranz/Getty Images

In one report, published May 11, U.S. researchers retrospectively tracked 89 rheumatic disease patients (76% female; mean age, 61) at a single clinic who’d received at least one dose of a COVID-19 vaccine. Of those, 21 patients showed no sign of vaccine antibody response, and 20 of them were in the group taking rituximab. (The other patient was taking belimumab.) Another 10 patients taking rituximab did show a response.

“Longer duration from most recent rituximab exposure was associated with a greater likelihood of response,” the report’s authors wrote. “The results suggest that time from last rituximab exposure is an important consideration in maximizing the likelihood of a serological response, but this likely is related to the substantial variation in the period of B-cell depletion following rituximab.”

Finally, an Austrian report published May 6 examined COVID-19 vaccine immune response in five patients who were taking rituximab (four with other drugs such as methotrexate and prednisone). Researchers compared them with eight healthy controls, half who’d been vaccinated.

The researchers found evidence that rituximab “may not have to preclude SARS-CoV-2 vaccination, since a cellular immune response will be mounted even in the absence of circulating B cells. Alternatively, in patients with stable disease, delaying [rituximab] treatment until after the second vaccination may be warranted and, therefore, vaccines with a short interval between first and second vaccination or those showing full protection after a single vaccination may be preferable. Importantly, in the presence of circulating B cells also a humoral immune response may be expected despite prior [rituximab] therapy.”

Dr. Bass said the findings reflect growing awareness that “patients with autoimmune disease, especially when they’re on immunosuppressant medications, don’t quite have as optimal responses to the vaccinations.” However, she said, the vaccines are so potent that they’re likely to still have significant efficacy in these patients even if there’s a reduction in response.

What’s next? Dr. Schett said “testing immune response to vaccination is important for patients with autoimmune disease. Some of them may need a third vaccination.”

The American College of Rheumatology’s COVID-19 vaccination guidelines do not recommend third vaccinations or postvaccination immune testing at this time. However, Dr. Bass, one of the coauthors of the recommendations, said it’s likely that postvaccination immune testing and booster shots will become routine.

Dr. Bass reported no relevant disclosures. Dr. Schett reported receiving consulting fees from AbbVie. The May 6 German vaccine study was funded by Deutsche Forschungsgemeinschaft, Bundesministerium für Bildung und Forschung, the ERC Synergy grant 4D Nanoscope, the IMI funded project RTCure, the Emerging Fields Initiative MIRACLE of the Friedrich-Alexander-Universität Erlangen-Nürnberg, the Schreiber Stiftung, and the Else Kröner-Memorial Scholarship. The study authors reported no disclosures. The May 25 study of German and American cohorts was funded by the National Institute of Arthritis and Musculoskletal and Skin Diseases, National Institute of Allergy and Infectious Diseases, Rheumatology Research Foundation, Bloomberg Philanthropies COVID-19 Initiative, Pfizer COVID-19 Competitive Grant Program, Beatrice Snyder Foundation, Riley Family Foundation, National Psoriasis Foundation, and Deutsche Forschungsgemeinschaft. The authors reported a range of financial relationships with pharmaceutical companies. No specific funding was reported for the other two studies mentioned.

Ten percent of patients with immune-mediated inflammatory diseases (IMIDs) fail to respond properly to COVID-19 vaccinations regardless of medication, researchers report, and small new studies suggest those on methotrexate and rituximab may be especially vulnerable to vaccine failure.

Even so, it’s still crucially vital for patients with IMIDs to get vaccinated and for clinicians to follow recommendations to temporarily withhold certain medications around the time of vaccination, rheumatologist Anne R. Bass, MD, of Weill Cornell Medicine and the Hospital for Special Surgery, New York, said in an interview. “We’re not making any significant adjustments,” added Dr. Bass, a coauthor of the American College of Rheumatology’s COVID-19 vaccination guidelines for patients with rheumatic and musculoskeletal diseases.

The findings appear in a trio of studies in Annals of the Rheumatic Diseases. The most recent study, which appeared May 25, 2021, found that more than one-third of patients with IMIDs who took methotrexate didn’t produce adequate antibody levels after vaccination versus 10% of those in other groups. (P < .001) A May 11 study found that 20 of 30 patients with rheumatic diseases on rituximab failed to respond to vaccination. And a May 6 study reported that immune responses against SARS-CoV-2 are “somewhat delayed and reduced” in patients with IMID, with 99.5% of a control group developing neutralizing antibody activity after vaccination versus 90% of those with IMID (P = .0008).


 

Development of neutralizing antibodies somewhat delayed and reduced

Team members were surprised by the high number of vaccine nonresponders in the May 6 IMID study, coauthor Georg Schett, MD, of Germany’s Friedrich-Alexander University Erlangen-Nuremberg and University Hospital Erlangen, said in an interview.

The researchers compared two groups of patients who had no history of COVID-19 and received COVID-19 vaccinations, mostly two shots of the Pfizer-BioNTech vaccine (96%): 84 with IMID (mean age, 53.1 years; 65.5% females) and 182 healthy controls (mean age, 40.8 years; 57.1% females).

The patients with IMID most commonly had spondyloarthritis (32.1%), RA (29.8%), inflammatory bowel disease (9.5%), and psoriasis (9.5%). Nearly 43% of the patients were treated with biologic and targeted synthetic disease-modifying antirheumatic drugs and 23.9% with conventional synthetic DMARDSs. Another 29% were not treated.

All of the controls developed anti–SARS-CoV-2 IgG, but 6% of the patients with IMID did not (P = .003). The gap in development of neutralizing antibodies was even higher: 99.5% of the controls developed neutralizing antibody activity versus 90% of the IMID group. “Neutralizing antibodies are more relevant because the test shows how much the antibodies interfere with the binding of SARS-CoV-2 proteins to the receptor,” Dr. Schett said.

The study authors concluded that “our study provides evidence that, while vaccination against SARS-CoV-2 is well tolerated and even associated with lower incidence of side effects in patients with IMID, its efficacy is somewhat delayed and reduced. Nonetheless, the data also show that, in principle, patients with IMID respond to SARS-CoV-2 vaccination, supporting an aggressive vaccination strategy.”
 

Lowered antibody response to vaccination for some methotrexate users

In the newer study, led by Rebecca H. Haberman, MD, of New York University Langone Health, researchers examined COVID-19 vaccine response in cohorts in New York City and Erlangen, Germany.

The New York cohort included 25 patients with IMID who were taking methotrexate by itself or with other immunomodulatory medications (mean age, 63.2 years), 26 with IMID who were on anticytokine therapy and/or other oral immunomodulators (mean age, 49.1 years) and 26 healthy controls (mean age, 49.2 years). Most patients with IMID had psoriasis/psoriatic arthritis or RA.

The German validation cohort included 182 healthy subjects (mean age, 45.0 years), 11 subjects with IMID who received TNF inhibitor monotherapy (mean age, 40.8 years), and 20 subjects with IMID on methotrexate monotherapy (mean age, 54.5 years).

In the New York cohort, 96.1% of healthy controls showed “adequate humoral immune response,” along with 92.3% of patients with IMID who weren’t taking methotrexate. However, those on methotrexate had a lower rate of adequate response (72.0%), and the gap persisted even after researchers removed those who showed signs of previous COVID-19 infection (P = .045).

In the German cohort, 98.3% of healthy cohorts and 90.9% of patients with IMID who didn’t receive methotrexate reached an “adequate” humoral response versus just half (50.0%) of those who were taking methotrexate.

When both cohorts are combined, over 90% of the healthy subjects and the patients with IMID on biologic treatments (mainly TNF blockers, n = 37) showed “robust” antibody response. However, only 62% of patients with IMID who took methotrexate (n = 45) reached an “adequate” level of response. The methotrexate gap remained after researchers accounted for differences in age among the cohorts.

What’s going on? “We think that the underlying chronic immune stimulation in autoimmune patients may cause T-cell exhaustion and thus blunts the immune response,” said Dr. Schett, who’s also a coauthor of this study. “In addition, specific drugs such as methotrexate could additionally impair the immune response.”

Still, the findings “reiterate that vaccinations are safe and effective, which is what the recommendations state,” he said, adding that more testing of vaccination immune response is wise.
 

Insights into vaccine response while on rituximab

Two more reports, also published in Annals of the Rheumatic Diseases, offer insight into vaccine response in patients with IMID who take rituximab.

Ridofranz/Getty Images

In one report, published May 11, U.S. researchers retrospectively tracked 89 rheumatic disease patients (76% female; mean age, 61) at a single clinic who’d received at least one dose of a COVID-19 vaccine. Of those, 21 patients showed no sign of vaccine antibody response, and 20 of them were in the group taking rituximab. (The other patient was taking belimumab.) Another 10 patients taking rituximab did show a response.

“Longer duration from most recent rituximab exposure was associated with a greater likelihood of response,” the report’s authors wrote. “The results suggest that time from last rituximab exposure is an important consideration in maximizing the likelihood of a serological response, but this likely is related to the substantial variation in the period of B-cell depletion following rituximab.”

Finally, an Austrian report published May 6 examined COVID-19 vaccine immune response in five patients who were taking rituximab (four with other drugs such as methotrexate and prednisone). Researchers compared them with eight healthy controls, half who’d been vaccinated.

The researchers found evidence that rituximab “may not have to preclude SARS-CoV-2 vaccination, since a cellular immune response will be mounted even in the absence of circulating B cells. Alternatively, in patients with stable disease, delaying [rituximab] treatment until after the second vaccination may be warranted and, therefore, vaccines with a short interval between first and second vaccination or those showing full protection after a single vaccination may be preferable. Importantly, in the presence of circulating B cells also a humoral immune response may be expected despite prior [rituximab] therapy.”

Dr. Bass said the findings reflect growing awareness that “patients with autoimmune disease, especially when they’re on immunosuppressant medications, don’t quite have as optimal responses to the vaccinations.” However, she said, the vaccines are so potent that they’re likely to still have significant efficacy in these patients even if there’s a reduction in response.

What’s next? Dr. Schett said “testing immune response to vaccination is important for patients with autoimmune disease. Some of them may need a third vaccination.”

The American College of Rheumatology’s COVID-19 vaccination guidelines do not recommend third vaccinations or postvaccination immune testing at this time. However, Dr. Bass, one of the coauthors of the recommendations, said it’s likely that postvaccination immune testing and booster shots will become routine.

Dr. Bass reported no relevant disclosures. Dr. Schett reported receiving consulting fees from AbbVie. The May 6 German vaccine study was funded by Deutsche Forschungsgemeinschaft, Bundesministerium für Bildung und Forschung, the ERC Synergy grant 4D Nanoscope, the IMI funded project RTCure, the Emerging Fields Initiative MIRACLE of the Friedrich-Alexander-Universität Erlangen-Nürnberg, the Schreiber Stiftung, and the Else Kröner-Memorial Scholarship. The study authors reported no disclosures. The May 25 study of German and American cohorts was funded by the National Institute of Arthritis and Musculoskletal and Skin Diseases, National Institute of Allergy and Infectious Diseases, Rheumatology Research Foundation, Bloomberg Philanthropies COVID-19 Initiative, Pfizer COVID-19 Competitive Grant Program, Beatrice Snyder Foundation, Riley Family Foundation, National Psoriasis Foundation, and Deutsche Forschungsgemeinschaft. The authors reported a range of financial relationships with pharmaceutical companies. No specific funding was reported for the other two studies mentioned.