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EULAR keeps csDMARDs as top PsA drugs
MADRID – The draft revision of the European League Against Rheumatism’s recommendations for managing psoriatic arthritis sticks with the group’s already-existing conviction that psoriatic arthritis treatment best starts with an NSAID, and if that fails follow with a conventional synthetic antirheumatic drug such as methotrexate, a position in stark contrast with the 2018 recommendation from the American College of Rheumatology to first treat with a tumor necrosis factor (TNF) inhibitor.
For patients with psoriatic arthritis (PsA) manifesting with polyarthritis, conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) “should be first,” and should “start rapidly” if brief, initial treatment with an NSAID proves inadequate, Laure Gossec, MD, PhD, said while presenting a draft version of an update to the PsA management recommendations from EULAR at the European Congress of Rheumatology.
The EULAR recommendations-revision panel had about the same advice for managing PsA patients with oligoarthritis, monoarthritis, or peripheral arthritis. For oligo- and monoarthritis, “consider a csDMARD after failing NSAIDS, but also consider the patient’s prognostic factors,” like structural damage, and dactylitis. For PsA patients with peripheral arthritis, “it still makes sense to keep csDMARDs as the first line treatment,” said Dr. Gossec, professor of rheumatology at Pitie-Salpétriere Hospital and Sorbonne University, Paris. Once published, the revision will replace existing EULAR recommendations from 2015 (Ann Rheum Dis. 2016 Mar;75[3]:499-510).
The list of csDMARDs she cited included not just methotrexate, still the top csDMARD, but also sulfasalazine and leflunomide as alternatives, she noted, with methotrexate also the preferred csDMARD for patients with skin involvement. When a PsA patient fails at least one csDMARD, then switching to a biologic DMARD is recommended. For a patient with skin involvement, a drug that targets interleukin-17 or IL-12 and -23 is preferred. If skin involvement is not a major issue, then treatment with a TNF inhibitor is equally valid, she said.
The 2018 PsA management guideline from the American College of Rheumatology (ACR) proposed a strikingly different sequence, endorsing initial treatment with a TNF inhibitor first over all other options, including methotrexate and other “oral small molecules” (the ACR term for csDMARD), and also including NSAIDs (Arthritis Rheumatol. 2019 Jan;71[1]:5-32).
This schism between EULAR and the ACR could be seen as predictable, given the different constraints the two societies have set for themselves.
“EULAR recommendations take into account drug costs; the ACR guideline is supposed to be agnostic to costs,” explained Philip J. Mease, MD, a rheumatologist at Swedish Medical Center in Seattle and a member of the ACR panel that wrote the 2018 PsA guideline.
In fact it was a study Dr. Mease recently led and reported results from that provided the most recent and perhaps best assessment of a TNF inhibitor, compared with methotrexate, as initial treatment for PsA, with findings that suggest that, although the advice from the two societies may sharply differ, the viewpoints of both groups are evidence based.
The SEAM-PsA (Study of Etanercept and Methotrexate in Subjects with Psoriatic Arthritis) trial randomized 851 PsA patients receiving their first treatment to methotrexate only, the TNF inhibitor etanercept (Enbrel) only, or both drugs. The study’s two coprimary outcomes, the ACR 20 and minimal disease activity responses after 24 weeks, showed that etanercept monotherapy produced these responses in 61% and 36% of patients, respectively, while methotrexate monotherapy produced response rates of 51% and 23%, respectively. Both these differences between etanercept monotherapy and methotrexate monotherapy were statistically significant. Combining methotrexate with etanercept did not produce a significant improvement over etanercept alone.
Interpreting the meaning of this finding for clinical practice “depends on the lens you look through,” Dr. Mease said in an interview. “A lot of patients respond to methotrexate, which is good when treatment resources are challenged. But when there is no resource challenge, the data support going straight to a TNF inhibitor.”
Dr. Gossec confirmed the importance of the SEAM-PsA findings in the writing panel’s decision during discussion of the draft, replying to a question about consideration of the study’s findings. “We carefully looked at the SEAM-PsA trial results, which provide some of the only data we have on methotrexate” for PsA. “We felt that the results were in favor of methotrexate’s efficacy, and therefore did not go against our proposal to keep a graduated approach starting with a csDMARD.”
Patients who fail to receive adequate relief from a csDMARD could then try a biologic DMARD – a TNF inhibitor, IL-17 inhibitor, or IL-12/23 inhibitor, Dr. Gossec said. When skin involvement is minimal, any of these options are possible, she said. If skin involvement is significant, the panel recommended preferentially using an IL-17 or IL-12/23 inhibitor based on head-to-head trials in patients with psoriasis, she said.
When a biologic DMARD is not appropriate or fails, another option is to then try a targeted synthetic DMARD, such as a Janus kinase inhibitor. When none of these options are appropriate, or they all fail, another option for patients with mild oligo- or monoarthritis or in patients with limited skin involvement is apremilast (Otezla), a phosphodiesterase-4 inhibitor. The draft recommendations also advise clinicians to be sure to distinguish fibromyalgia pain from enthesitis involvement, and they introduce the possibility of, with “great caution,” tapering down DMARD treatment in PsA patients who show sustained remission.
Dr. Gossec and Dr. Mease have both been consultants to and received honoraria from several companies. SEAM-PsA was sponsored by Amgen, the company that markets Enbrel.
MADRID – The draft revision of the European League Against Rheumatism’s recommendations for managing psoriatic arthritis sticks with the group’s already-existing conviction that psoriatic arthritis treatment best starts with an NSAID, and if that fails follow with a conventional synthetic antirheumatic drug such as methotrexate, a position in stark contrast with the 2018 recommendation from the American College of Rheumatology to first treat with a tumor necrosis factor (TNF) inhibitor.
For patients with psoriatic arthritis (PsA) manifesting with polyarthritis, conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) “should be first,” and should “start rapidly” if brief, initial treatment with an NSAID proves inadequate, Laure Gossec, MD, PhD, said while presenting a draft version of an update to the PsA management recommendations from EULAR at the European Congress of Rheumatology.
The EULAR recommendations-revision panel had about the same advice for managing PsA patients with oligoarthritis, monoarthritis, or peripheral arthritis. For oligo- and monoarthritis, “consider a csDMARD after failing NSAIDS, but also consider the patient’s prognostic factors,” like structural damage, and dactylitis. For PsA patients with peripheral arthritis, “it still makes sense to keep csDMARDs as the first line treatment,” said Dr. Gossec, professor of rheumatology at Pitie-Salpétriere Hospital and Sorbonne University, Paris. Once published, the revision will replace existing EULAR recommendations from 2015 (Ann Rheum Dis. 2016 Mar;75[3]:499-510).
The list of csDMARDs she cited included not just methotrexate, still the top csDMARD, but also sulfasalazine and leflunomide as alternatives, she noted, with methotrexate also the preferred csDMARD for patients with skin involvement. When a PsA patient fails at least one csDMARD, then switching to a biologic DMARD is recommended. For a patient with skin involvement, a drug that targets interleukin-17 or IL-12 and -23 is preferred. If skin involvement is not a major issue, then treatment with a TNF inhibitor is equally valid, she said.
The 2018 PsA management guideline from the American College of Rheumatology (ACR) proposed a strikingly different sequence, endorsing initial treatment with a TNF inhibitor first over all other options, including methotrexate and other “oral small molecules” (the ACR term for csDMARD), and also including NSAIDs (Arthritis Rheumatol. 2019 Jan;71[1]:5-32).
This schism between EULAR and the ACR could be seen as predictable, given the different constraints the two societies have set for themselves.
“EULAR recommendations take into account drug costs; the ACR guideline is supposed to be agnostic to costs,” explained Philip J. Mease, MD, a rheumatologist at Swedish Medical Center in Seattle and a member of the ACR panel that wrote the 2018 PsA guideline.
In fact it was a study Dr. Mease recently led and reported results from that provided the most recent and perhaps best assessment of a TNF inhibitor, compared with methotrexate, as initial treatment for PsA, with findings that suggest that, although the advice from the two societies may sharply differ, the viewpoints of both groups are evidence based.
The SEAM-PsA (Study of Etanercept and Methotrexate in Subjects with Psoriatic Arthritis) trial randomized 851 PsA patients receiving their first treatment to methotrexate only, the TNF inhibitor etanercept (Enbrel) only, or both drugs. The study’s two coprimary outcomes, the ACR 20 and minimal disease activity responses after 24 weeks, showed that etanercept monotherapy produced these responses in 61% and 36% of patients, respectively, while methotrexate monotherapy produced response rates of 51% and 23%, respectively. Both these differences between etanercept monotherapy and methotrexate monotherapy were statistically significant. Combining methotrexate with etanercept did not produce a significant improvement over etanercept alone.
Interpreting the meaning of this finding for clinical practice “depends on the lens you look through,” Dr. Mease said in an interview. “A lot of patients respond to methotrexate, which is good when treatment resources are challenged. But when there is no resource challenge, the data support going straight to a TNF inhibitor.”
Dr. Gossec confirmed the importance of the SEAM-PsA findings in the writing panel’s decision during discussion of the draft, replying to a question about consideration of the study’s findings. “We carefully looked at the SEAM-PsA trial results, which provide some of the only data we have on methotrexate” for PsA. “We felt that the results were in favor of methotrexate’s efficacy, and therefore did not go against our proposal to keep a graduated approach starting with a csDMARD.”
Patients who fail to receive adequate relief from a csDMARD could then try a biologic DMARD – a TNF inhibitor, IL-17 inhibitor, or IL-12/23 inhibitor, Dr. Gossec said. When skin involvement is minimal, any of these options are possible, she said. If skin involvement is significant, the panel recommended preferentially using an IL-17 or IL-12/23 inhibitor based on head-to-head trials in patients with psoriasis, she said.
When a biologic DMARD is not appropriate or fails, another option is to then try a targeted synthetic DMARD, such as a Janus kinase inhibitor. When none of these options are appropriate, or they all fail, another option for patients with mild oligo- or monoarthritis or in patients with limited skin involvement is apremilast (Otezla), a phosphodiesterase-4 inhibitor. The draft recommendations also advise clinicians to be sure to distinguish fibromyalgia pain from enthesitis involvement, and they introduce the possibility of, with “great caution,” tapering down DMARD treatment in PsA patients who show sustained remission.
Dr. Gossec and Dr. Mease have both been consultants to and received honoraria from several companies. SEAM-PsA was sponsored by Amgen, the company that markets Enbrel.
MADRID – The draft revision of the European League Against Rheumatism’s recommendations for managing psoriatic arthritis sticks with the group’s already-existing conviction that psoriatic arthritis treatment best starts with an NSAID, and if that fails follow with a conventional synthetic antirheumatic drug such as methotrexate, a position in stark contrast with the 2018 recommendation from the American College of Rheumatology to first treat with a tumor necrosis factor (TNF) inhibitor.
For patients with psoriatic arthritis (PsA) manifesting with polyarthritis, conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) “should be first,” and should “start rapidly” if brief, initial treatment with an NSAID proves inadequate, Laure Gossec, MD, PhD, said while presenting a draft version of an update to the PsA management recommendations from EULAR at the European Congress of Rheumatology.
The EULAR recommendations-revision panel had about the same advice for managing PsA patients with oligoarthritis, monoarthritis, or peripheral arthritis. For oligo- and monoarthritis, “consider a csDMARD after failing NSAIDS, but also consider the patient’s prognostic factors,” like structural damage, and dactylitis. For PsA patients with peripheral arthritis, “it still makes sense to keep csDMARDs as the first line treatment,” said Dr. Gossec, professor of rheumatology at Pitie-Salpétriere Hospital and Sorbonne University, Paris. Once published, the revision will replace existing EULAR recommendations from 2015 (Ann Rheum Dis. 2016 Mar;75[3]:499-510).
The list of csDMARDs she cited included not just methotrexate, still the top csDMARD, but also sulfasalazine and leflunomide as alternatives, she noted, with methotrexate also the preferred csDMARD for patients with skin involvement. When a PsA patient fails at least one csDMARD, then switching to a biologic DMARD is recommended. For a patient with skin involvement, a drug that targets interleukin-17 or IL-12 and -23 is preferred. If skin involvement is not a major issue, then treatment with a TNF inhibitor is equally valid, she said.
The 2018 PsA management guideline from the American College of Rheumatology (ACR) proposed a strikingly different sequence, endorsing initial treatment with a TNF inhibitor first over all other options, including methotrexate and other “oral small molecules” (the ACR term for csDMARD), and also including NSAIDs (Arthritis Rheumatol. 2019 Jan;71[1]:5-32).
This schism between EULAR and the ACR could be seen as predictable, given the different constraints the two societies have set for themselves.
“EULAR recommendations take into account drug costs; the ACR guideline is supposed to be agnostic to costs,” explained Philip J. Mease, MD, a rheumatologist at Swedish Medical Center in Seattle and a member of the ACR panel that wrote the 2018 PsA guideline.
In fact it was a study Dr. Mease recently led and reported results from that provided the most recent and perhaps best assessment of a TNF inhibitor, compared with methotrexate, as initial treatment for PsA, with findings that suggest that, although the advice from the two societies may sharply differ, the viewpoints of both groups are evidence based.
The SEAM-PsA (Study of Etanercept and Methotrexate in Subjects with Psoriatic Arthritis) trial randomized 851 PsA patients receiving their first treatment to methotrexate only, the TNF inhibitor etanercept (Enbrel) only, or both drugs. The study’s two coprimary outcomes, the ACR 20 and minimal disease activity responses after 24 weeks, showed that etanercept monotherapy produced these responses in 61% and 36% of patients, respectively, while methotrexate monotherapy produced response rates of 51% and 23%, respectively. Both these differences between etanercept monotherapy and methotrexate monotherapy were statistically significant. Combining methotrexate with etanercept did not produce a significant improvement over etanercept alone.
Interpreting the meaning of this finding for clinical practice “depends on the lens you look through,” Dr. Mease said in an interview. “A lot of patients respond to methotrexate, which is good when treatment resources are challenged. But when there is no resource challenge, the data support going straight to a TNF inhibitor.”
Dr. Gossec confirmed the importance of the SEAM-PsA findings in the writing panel’s decision during discussion of the draft, replying to a question about consideration of the study’s findings. “We carefully looked at the SEAM-PsA trial results, which provide some of the only data we have on methotrexate” for PsA. “We felt that the results were in favor of methotrexate’s efficacy, and therefore did not go against our proposal to keep a graduated approach starting with a csDMARD.”
Patients who fail to receive adequate relief from a csDMARD could then try a biologic DMARD – a TNF inhibitor, IL-17 inhibitor, or IL-12/23 inhibitor, Dr. Gossec said. When skin involvement is minimal, any of these options are possible, she said. If skin involvement is significant, the panel recommended preferentially using an IL-17 or IL-12/23 inhibitor based on head-to-head trials in patients with psoriasis, she said.
When a biologic DMARD is not appropriate or fails, another option is to then try a targeted synthetic DMARD, such as a Janus kinase inhibitor. When none of these options are appropriate, or they all fail, another option for patients with mild oligo- or monoarthritis or in patients with limited skin involvement is apremilast (Otezla), a phosphodiesterase-4 inhibitor. The draft recommendations also advise clinicians to be sure to distinguish fibromyalgia pain from enthesitis involvement, and they introduce the possibility of, with “great caution,” tapering down DMARD treatment in PsA patients who show sustained remission.
Dr. Gossec and Dr. Mease have both been consultants to and received honoraria from several companies. SEAM-PsA was sponsored by Amgen, the company that markets Enbrel.
REPORTING FROM EULAR 2019 CONGRESS
PsA Fast Facts: PsA and psoriasis links
Psoriatic Arthritis Journal Scan: June 2019
Treating Psoriatic Arthritis to Target: Defining Psoriatic Arthritis Disease Activity Score (PASDAS) That Reflects State Of Minimal Disease Activity (MDA).
Perruccio AV, Got M, Li S, Ye Y, Gladman DD, Chandran V. J Rheumatol. 2019 Jun 15.
PsA Disease Activity Score (PASDAS) is a composite disease activity measure (range 0-10) for psoriatic arthritis. The study aimed to validate a cutoff value of PASDAS that defines minimal disease activity state, as well as validate previously defined PASDAS cutoffs for low and high disease activity.
Evaluating current definitions of low disease activity in psoriatic arthritis using ultrasound.
Bosch P, Husic R, Ficjan A, et al. Rheumatology (Oxford). 2019 Jun 14.
The aim of the study was to evaluate low disease activity (LDA) cut-offs in psoriatic arthritis (PsA) using ultrasound. Eighty-three PsA patients underwent clinical and ultrasound examinations at two visits. Pain and pain-related items are the main reason why PsA patients without signs of ultrasound inflammation are classified with higher disease activity.
A Threshold of Meaning for Work Disability Improvement in Psoriatic Arthritis Measured by the Work Productivity and Activity Impairment Questionnaire.
Tillett W, Lin CY, Zbrozek A, Sprabery AT, Birt J. Rheumatol Ther. 2019 Jun 1.
The Work Productivity and Activity Impairment Specific Health Problem Questionnaire (WPAI:SHP) is used to assess the impact of an intervention on work productivity in patients with psoriatic arthritis (PsA). Unfortunately, studies reporting changes or improvements in domains of WPAI:SHP by patients with PsA have a limited threshold of meaning due to the absence of published minimal clinically important differences (MCIDs). The objective of the study was to determine the MCIDs for improvement in WPAI:SHP in patients with active PsA.
Measuring Psoriatic Arthritis Symptoms, A Core Domain in Psoriasis Clinical Trials.
Perez-Chada LM, Gottlieb AB, Cohen J, et al. J Am Acad Dermatol. 2019 Jun 1.
The International Dermatology Outcome Measures (IDEOM) established a set of core domains to be measured in all psoriasis trials. This set indicates that symptoms of psoriatic arthritis (PsA) should be measured in all psoriasis studies. The objective of the study was to identify the approach to PsA screening, and the most appropriate outcome measure for capturing PsA symptoms. The overwhelming majority of expert stakeholders agreed that all psoriasis trial subjects should be screened for PsA with subsequent measurement of PsA symptoms with use of the PsAID9 (with the RAPID3 as an acceptable alternative measure).
The Genetics of Psoriasis and Psoriatic Arthritis.
O'Rielly DD, Jani M, Rahman P, Elder JT. J Rheumatol Suppl. 2019 Jun;95:46-50.
Psoriatic arthritis (PsA) is an inflammatory arthritis that manifests in 20-30% of patients diagnosed with psoriasis. Epidemiologic studies suggest a substantial genetic contribution to PsA. There is a strong need for genome-wide association studies on patients with PsA, including PsA-weighted or specific variants. Genomics and serological factors may also predict treatment response in tumor necrosis factor inhibitors (TNFi) in PsA, and genetics may play a role in treatment response to TNFi. Collaborations through the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA) are essential to increase study population size, which will enhance the ability to detect the genetic variants that create a predisposition to psoriatic disease and to predict response to biological therapy.
Treating Psoriatic Arthritis to Target: Defining Psoriatic Arthritis Disease Activity Score (PASDAS) That Reflects State Of Minimal Disease Activity (MDA).
Perruccio AV, Got M, Li S, Ye Y, Gladman DD, Chandran V. J Rheumatol. 2019 Jun 15.
PsA Disease Activity Score (PASDAS) is a composite disease activity measure (range 0-10) for psoriatic arthritis. The study aimed to validate a cutoff value of PASDAS that defines minimal disease activity state, as well as validate previously defined PASDAS cutoffs for low and high disease activity.
Evaluating current definitions of low disease activity in psoriatic arthritis using ultrasound.
Bosch P, Husic R, Ficjan A, et al. Rheumatology (Oxford). 2019 Jun 14.
The aim of the study was to evaluate low disease activity (LDA) cut-offs in psoriatic arthritis (PsA) using ultrasound. Eighty-three PsA patients underwent clinical and ultrasound examinations at two visits. Pain and pain-related items are the main reason why PsA patients without signs of ultrasound inflammation are classified with higher disease activity.
A Threshold of Meaning for Work Disability Improvement in Psoriatic Arthritis Measured by the Work Productivity and Activity Impairment Questionnaire.
Tillett W, Lin CY, Zbrozek A, Sprabery AT, Birt J. Rheumatol Ther. 2019 Jun 1.
The Work Productivity and Activity Impairment Specific Health Problem Questionnaire (WPAI:SHP) is used to assess the impact of an intervention on work productivity in patients with psoriatic arthritis (PsA). Unfortunately, studies reporting changes or improvements in domains of WPAI:SHP by patients with PsA have a limited threshold of meaning due to the absence of published minimal clinically important differences (MCIDs). The objective of the study was to determine the MCIDs for improvement in WPAI:SHP in patients with active PsA.
Measuring Psoriatic Arthritis Symptoms, A Core Domain in Psoriasis Clinical Trials.
Perez-Chada LM, Gottlieb AB, Cohen J, et al. J Am Acad Dermatol. 2019 Jun 1.
The International Dermatology Outcome Measures (IDEOM) established a set of core domains to be measured in all psoriasis trials. This set indicates that symptoms of psoriatic arthritis (PsA) should be measured in all psoriasis studies. The objective of the study was to identify the approach to PsA screening, and the most appropriate outcome measure for capturing PsA symptoms. The overwhelming majority of expert stakeholders agreed that all psoriasis trial subjects should be screened for PsA with subsequent measurement of PsA symptoms with use of the PsAID9 (with the RAPID3 as an acceptable alternative measure).
The Genetics of Psoriasis and Psoriatic Arthritis.
O'Rielly DD, Jani M, Rahman P, Elder JT. J Rheumatol Suppl. 2019 Jun;95:46-50.
Psoriatic arthritis (PsA) is an inflammatory arthritis that manifests in 20-30% of patients diagnosed with psoriasis. Epidemiologic studies suggest a substantial genetic contribution to PsA. There is a strong need for genome-wide association studies on patients with PsA, including PsA-weighted or specific variants. Genomics and serological factors may also predict treatment response in tumor necrosis factor inhibitors (TNFi) in PsA, and genetics may play a role in treatment response to TNFi. Collaborations through the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA) are essential to increase study population size, which will enhance the ability to detect the genetic variants that create a predisposition to psoriatic disease and to predict response to biological therapy.
Treating Psoriatic Arthritis to Target: Defining Psoriatic Arthritis Disease Activity Score (PASDAS) That Reflects State Of Minimal Disease Activity (MDA).
Perruccio AV, Got M, Li S, Ye Y, Gladman DD, Chandran V. J Rheumatol. 2019 Jun 15.
PsA Disease Activity Score (PASDAS) is a composite disease activity measure (range 0-10) for psoriatic arthritis. The study aimed to validate a cutoff value of PASDAS that defines minimal disease activity state, as well as validate previously defined PASDAS cutoffs for low and high disease activity.
Evaluating current definitions of low disease activity in psoriatic arthritis using ultrasound.
Bosch P, Husic R, Ficjan A, et al. Rheumatology (Oxford). 2019 Jun 14.
The aim of the study was to evaluate low disease activity (LDA) cut-offs in psoriatic arthritis (PsA) using ultrasound. Eighty-three PsA patients underwent clinical and ultrasound examinations at two visits. Pain and pain-related items are the main reason why PsA patients without signs of ultrasound inflammation are classified with higher disease activity.
A Threshold of Meaning for Work Disability Improvement in Psoriatic Arthritis Measured by the Work Productivity and Activity Impairment Questionnaire.
Tillett W, Lin CY, Zbrozek A, Sprabery AT, Birt J. Rheumatol Ther. 2019 Jun 1.
The Work Productivity and Activity Impairment Specific Health Problem Questionnaire (WPAI:SHP) is used to assess the impact of an intervention on work productivity in patients with psoriatic arthritis (PsA). Unfortunately, studies reporting changes or improvements in domains of WPAI:SHP by patients with PsA have a limited threshold of meaning due to the absence of published minimal clinically important differences (MCIDs). The objective of the study was to determine the MCIDs for improvement in WPAI:SHP in patients with active PsA.
Measuring Psoriatic Arthritis Symptoms, A Core Domain in Psoriasis Clinical Trials.
Perez-Chada LM, Gottlieb AB, Cohen J, et al. J Am Acad Dermatol. 2019 Jun 1.
The International Dermatology Outcome Measures (IDEOM) established a set of core domains to be measured in all psoriasis trials. This set indicates that symptoms of psoriatic arthritis (PsA) should be measured in all psoriasis studies. The objective of the study was to identify the approach to PsA screening, and the most appropriate outcome measure for capturing PsA symptoms. The overwhelming majority of expert stakeholders agreed that all psoriasis trial subjects should be screened for PsA with subsequent measurement of PsA symptoms with use of the PsAID9 (with the RAPID3 as an acceptable alternative measure).
The Genetics of Psoriasis and Psoriatic Arthritis.
O'Rielly DD, Jani M, Rahman P, Elder JT. J Rheumatol Suppl. 2019 Jun;95:46-50.
Psoriatic arthritis (PsA) is an inflammatory arthritis that manifests in 20-30% of patients diagnosed with psoriasis. Epidemiologic studies suggest a substantial genetic contribution to PsA. There is a strong need for genome-wide association studies on patients with PsA, including PsA-weighted or specific variants. Genomics and serological factors may also predict treatment response in tumor necrosis factor inhibitors (TNFi) in PsA, and genetics may play a role in treatment response to TNFi. Collaborations through the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA) are essential to increase study population size, which will enhance the ability to detect the genetic variants that create a predisposition to psoriatic disease and to predict response to biological therapy.
Infections linked with transition to psoriatic arthritis
MADRID – Several novel risk associations with psoriasis progression were found to differ by sex, and collectively appeared to implicate infections and the “stress response” as a trigger of psoriatic arthritis.
The findings come from a risk factor analysis of a U.S. claims database of more than 200,000 adults with psoriasis including more than 4,000 patients who progressed to psoriatic arthritis during nearly 6 years of follow-up.
The new analysis confirmed several previously described risk associations linked with progression to psoriatic arthritis (PsA) that have roughly equal impact on both women and men: fatigue, obesity, and depression, Alexis Ogdie, MD, said at the European Congress of Rheumatology. The new findings also showed several novel, sex-specific associations. In women, these associations included salmonella infection, sepsis, and uveitis; in men, they included gangrene, encephalitis, and hidradenitis suppurativa.
The links with various infections were generally rare; they showed strong nominal associations in multivariate analyses but with wide confidence limits. The findings suggest that events that induce major stress responses, such as infections, often preceded the progression of psoriasis to a diagnosis of PsA, said Dr. Ogdie, director of the psoriatic arthritis clinic at the University of Pennsylvania in Philadelphia. Other, noninfectious clinical features that significantly linked with PsA development but at a lower magnitude included anemia and diabetes in women, and irritable bowel syndrome and venous thromboembolism in men.
Dr. Ogdie cautioned that the findings were preliminary and need confirmation in different data sets, as well as in additional subgroup analyses of the data used in the current analysis, taken from the electronic medical records of 215,386 U.S. residents diagnosed with psoriasis in the Optum medical-claims database for 2006-2017.
The analysis focused on patients who received a second diagnostic code in their EMR for psoriasis during the 12 months after the index psoriasis entry. The identified group averaged 50 years old; 55% of the psoriasis patients were women, and 86% were white.
During the year after their first diagnostic-code entry for psoriasis, 4.6% of the patients received a biological drug and 4.2% received an oral drug for their psoriasis. During 5.6 years of follow-up, 4,288 patients (2%) developed PsA, a rate of 3.5 cases/1,000 patient-years. Dr. Ogdie noted that prior studies have documented the challenge of diagnosing PsA in patients with psoriasis, so this may be a conservative estimate of the progression rate.
The researchers assessed possible linkage with PsA progression for more than 250 different entries in the EMR, but the analysis was limited by the absence of measures of rheumatoid susceptibility, such as immunologic markers, which were not included in the EMR. In multivariate analysis of the full cohort, fatigue at baseline was linked with a 77% higher rate of progression to PsA, obesity was linked with a 48% higher rate, and depression with a 29% higher rate of progression when compared with psoriasis patients without each of these factors. All three differences were statistically significant. Dr. Ogdie cited an article she recently coauthored that detailed the background to this approach in studying the etiology of PsA (Nat Rev Rheumatol. 2019 March;15:153-66).
This is the first study to report sex-linked differences in clinical measures that link with progression to PsA, Dr. Ogdie noted. In women, salmonella infection linked with a 9-fold higher rate of PsA development compared with women with psoriasis without salmonella infection, women with uveitis had a 2.9-fold higher rate of PsA development, and those with sepsis had a 2.4-fold increased rate of PsA. Among men, those with gangrene, encephalitis, or hidradenitis suppurativa each had a greater than 4-fold higher rate of developing PsA, and men with osteomyelitis had a 2.7-fold increase.
All these between-group differences were statistically significant. But because each of these was a relatively rare event, the confidence intervals around these point estimates were wide. For example, in women with salmonella infection from a statistical standpoint the possible range of increased risk could be anywhere from 1.3 to 66. The analysis identified among women and men several additional sex-specific risk associations that were statistically significant but with smaller point estimates.
SOURCE: Ogdie A et al. Ann Rheum Dis. Jun 2019;78(Suppl 2):131-2. Abstract OP0115. doi: 10.1136/annrheumdis-2019-eular.4390.
MADRID – Several novel risk associations with psoriasis progression were found to differ by sex, and collectively appeared to implicate infections and the “stress response” as a trigger of psoriatic arthritis.
The findings come from a risk factor analysis of a U.S. claims database of more than 200,000 adults with psoriasis including more than 4,000 patients who progressed to psoriatic arthritis during nearly 6 years of follow-up.
The new analysis confirmed several previously described risk associations linked with progression to psoriatic arthritis (PsA) that have roughly equal impact on both women and men: fatigue, obesity, and depression, Alexis Ogdie, MD, said at the European Congress of Rheumatology. The new findings also showed several novel, sex-specific associations. In women, these associations included salmonella infection, sepsis, and uveitis; in men, they included gangrene, encephalitis, and hidradenitis suppurativa.
The links with various infections were generally rare; they showed strong nominal associations in multivariate analyses but with wide confidence limits. The findings suggest that events that induce major stress responses, such as infections, often preceded the progression of psoriasis to a diagnosis of PsA, said Dr. Ogdie, director of the psoriatic arthritis clinic at the University of Pennsylvania in Philadelphia. Other, noninfectious clinical features that significantly linked with PsA development but at a lower magnitude included anemia and diabetes in women, and irritable bowel syndrome and venous thromboembolism in men.
Dr. Ogdie cautioned that the findings were preliminary and need confirmation in different data sets, as well as in additional subgroup analyses of the data used in the current analysis, taken from the electronic medical records of 215,386 U.S. residents diagnosed with psoriasis in the Optum medical-claims database for 2006-2017.
The analysis focused on patients who received a second diagnostic code in their EMR for psoriasis during the 12 months after the index psoriasis entry. The identified group averaged 50 years old; 55% of the psoriasis patients were women, and 86% were white.
During the year after their first diagnostic-code entry for psoriasis, 4.6% of the patients received a biological drug and 4.2% received an oral drug for their psoriasis. During 5.6 years of follow-up, 4,288 patients (2%) developed PsA, a rate of 3.5 cases/1,000 patient-years. Dr. Ogdie noted that prior studies have documented the challenge of diagnosing PsA in patients with psoriasis, so this may be a conservative estimate of the progression rate.
The researchers assessed possible linkage with PsA progression for more than 250 different entries in the EMR, but the analysis was limited by the absence of measures of rheumatoid susceptibility, such as immunologic markers, which were not included in the EMR. In multivariate analysis of the full cohort, fatigue at baseline was linked with a 77% higher rate of progression to PsA, obesity was linked with a 48% higher rate, and depression with a 29% higher rate of progression when compared with psoriasis patients without each of these factors. All three differences were statistically significant. Dr. Ogdie cited an article she recently coauthored that detailed the background to this approach in studying the etiology of PsA (Nat Rev Rheumatol. 2019 March;15:153-66).
This is the first study to report sex-linked differences in clinical measures that link with progression to PsA, Dr. Ogdie noted. In women, salmonella infection linked with a 9-fold higher rate of PsA development compared with women with psoriasis without salmonella infection, women with uveitis had a 2.9-fold higher rate of PsA development, and those with sepsis had a 2.4-fold increased rate of PsA. Among men, those with gangrene, encephalitis, or hidradenitis suppurativa each had a greater than 4-fold higher rate of developing PsA, and men with osteomyelitis had a 2.7-fold increase.
All these between-group differences were statistically significant. But because each of these was a relatively rare event, the confidence intervals around these point estimates were wide. For example, in women with salmonella infection from a statistical standpoint the possible range of increased risk could be anywhere from 1.3 to 66. The analysis identified among women and men several additional sex-specific risk associations that were statistically significant but with smaller point estimates.
SOURCE: Ogdie A et al. Ann Rheum Dis. Jun 2019;78(Suppl 2):131-2. Abstract OP0115. doi: 10.1136/annrheumdis-2019-eular.4390.
MADRID – Several novel risk associations with psoriasis progression were found to differ by sex, and collectively appeared to implicate infections and the “stress response” as a trigger of psoriatic arthritis.
The findings come from a risk factor analysis of a U.S. claims database of more than 200,000 adults with psoriasis including more than 4,000 patients who progressed to psoriatic arthritis during nearly 6 years of follow-up.
The new analysis confirmed several previously described risk associations linked with progression to psoriatic arthritis (PsA) that have roughly equal impact on both women and men: fatigue, obesity, and depression, Alexis Ogdie, MD, said at the European Congress of Rheumatology. The new findings also showed several novel, sex-specific associations. In women, these associations included salmonella infection, sepsis, and uveitis; in men, they included gangrene, encephalitis, and hidradenitis suppurativa.
The links with various infections were generally rare; they showed strong nominal associations in multivariate analyses but with wide confidence limits. The findings suggest that events that induce major stress responses, such as infections, often preceded the progression of psoriasis to a diagnosis of PsA, said Dr. Ogdie, director of the psoriatic arthritis clinic at the University of Pennsylvania in Philadelphia. Other, noninfectious clinical features that significantly linked with PsA development but at a lower magnitude included anemia and diabetes in women, and irritable bowel syndrome and venous thromboembolism in men.
Dr. Ogdie cautioned that the findings were preliminary and need confirmation in different data sets, as well as in additional subgroup analyses of the data used in the current analysis, taken from the electronic medical records of 215,386 U.S. residents diagnosed with psoriasis in the Optum medical-claims database for 2006-2017.
The analysis focused on patients who received a second diagnostic code in their EMR for psoriasis during the 12 months after the index psoriasis entry. The identified group averaged 50 years old; 55% of the psoriasis patients were women, and 86% were white.
During the year after their first diagnostic-code entry for psoriasis, 4.6% of the patients received a biological drug and 4.2% received an oral drug for their psoriasis. During 5.6 years of follow-up, 4,288 patients (2%) developed PsA, a rate of 3.5 cases/1,000 patient-years. Dr. Ogdie noted that prior studies have documented the challenge of diagnosing PsA in patients with psoriasis, so this may be a conservative estimate of the progression rate.
The researchers assessed possible linkage with PsA progression for more than 250 different entries in the EMR, but the analysis was limited by the absence of measures of rheumatoid susceptibility, such as immunologic markers, which were not included in the EMR. In multivariate analysis of the full cohort, fatigue at baseline was linked with a 77% higher rate of progression to PsA, obesity was linked with a 48% higher rate, and depression with a 29% higher rate of progression when compared with psoriasis patients without each of these factors. All three differences were statistically significant. Dr. Ogdie cited an article she recently coauthored that detailed the background to this approach in studying the etiology of PsA (Nat Rev Rheumatol. 2019 March;15:153-66).
This is the first study to report sex-linked differences in clinical measures that link with progression to PsA, Dr. Ogdie noted. In women, salmonella infection linked with a 9-fold higher rate of PsA development compared with women with psoriasis without salmonella infection, women with uveitis had a 2.9-fold higher rate of PsA development, and those with sepsis had a 2.4-fold increased rate of PsA. Among men, those with gangrene, encephalitis, or hidradenitis suppurativa each had a greater than 4-fold higher rate of developing PsA, and men with osteomyelitis had a 2.7-fold increase.
All these between-group differences were statistically significant. But because each of these was a relatively rare event, the confidence intervals around these point estimates were wide. For example, in women with salmonella infection from a statistical standpoint the possible range of increased risk could be anywhere from 1.3 to 66. The analysis identified among women and men several additional sex-specific risk associations that were statistically significant but with smaller point estimates.
SOURCE: Ogdie A et al. Ann Rheum Dis. Jun 2019;78(Suppl 2):131-2. Abstract OP0115. doi: 10.1136/annrheumdis-2019-eular.4390.
REPORTING FROM THE EULAR 2019 CONGRESS
Systemic psoriasis treatments less often prescribed in elderly with psoriasis, despite comparable response rates
MILAN – an analysis of German and Swiss registry data shows.
There was an “imbalance” in the types of medications prescribed for older and younger patients in the registry, with biologics used more frequently in younger patients, according to investigator Matthias Augustin, MD, director of the Institute For Health Services Research in Dermatology and Nursing in Hamburg, Germany.
However, the efficacy of systemic treatments, including nonbiologic therapies, was comparable between older and younger patients, other than a few differences in response rates early in treatment that disappeared with longer follow-up, Dr. Augustin said at the World Congress of Dermatology. Coupled with evidence from the medical literature, results of this registry data analysis suggest there are “very few reasons” to avoid use of systemic drugs in elderly patients.
“I think we should create awareness and discuss possible reasons that deter dermatologists from prescribing systemic antipsoriatics in elderly patients,” he said.
Concerns about safety and drug interactions in the elderly may be one barrier to prescribing systemic therapy in this patient population: More data on this issue are needed, since the elderly are taking more medications than younger patients and have more contraindications, Dr. Augustin said. “I think this is a job for all registries for the future.”
Older individuals have typically been excluded from psoriasis clinical trials, making it difficult to extrapolate existing safety and efficacy data to those patients, he pointed out.
Accordingly, Dr. Augustin and coinvestigators evaluated prospectively collected data for patients with moderate to severe psoriasis who were included in either the German Psoriasis registry (PsoBest) or the Swiss Dermatology Network for Targeted Therapies (SDNTT). They split the cohort into a control group of those younger than 65 years (about 4,600 individuals) and those 65 years or older (about 740 individuals).
A few systemic drugs were used more frequently in the elderly, including apremilast and methotrexate, while most other drugs, including biologics, were used more frequently in younger patients, Dr. Augustin and colleagues found in their analysis. There were a few differences between the elderly and controls related to weight, smoking, and other factors, but not so pronounced that they would explain differences in the use of the systemic therapy.
Response rates to systemic therapies were generally comparable between the elderly and controls, as measured by Psoriasis Area Severity Index (PASI) 75 responses, PASI scores of 3 or less, and Dermatology Life Quality Index scores of one or less, he added.
One exception was methotrexate, which was more effective in the elderly after 3 and 6 months of treatment, but that difference was no longer apparent after 12 months of treatment, he said. Likewise, cyclosporine showed a higher response rate in younger patients at 3 months, but not at 6 or 12 months.
Based on the findings, “overall, we observed comparable responses between the controls and the elderly,” Dr. Augustin concluded.
The PsoBest registry is sponsored by CVderm, DDG, and BVDD, and “has been established and is operated in close cooperation with the involved pharmaceutical companies whose statutory pharmacovigilance requirements are taken into account,” according to a statement on the PsoBest website. The Swiss registry is supported by Janssen, AbbVie, Pfizer, Celgene, Lilly, and Novartis. The investigators did not report any disclosures.
MILAN – an analysis of German and Swiss registry data shows.
There was an “imbalance” in the types of medications prescribed for older and younger patients in the registry, with biologics used more frequently in younger patients, according to investigator Matthias Augustin, MD, director of the Institute For Health Services Research in Dermatology and Nursing in Hamburg, Germany.
However, the efficacy of systemic treatments, including nonbiologic therapies, was comparable between older and younger patients, other than a few differences in response rates early in treatment that disappeared with longer follow-up, Dr. Augustin said at the World Congress of Dermatology. Coupled with evidence from the medical literature, results of this registry data analysis suggest there are “very few reasons” to avoid use of systemic drugs in elderly patients.
“I think we should create awareness and discuss possible reasons that deter dermatologists from prescribing systemic antipsoriatics in elderly patients,” he said.
Concerns about safety and drug interactions in the elderly may be one barrier to prescribing systemic therapy in this patient population: More data on this issue are needed, since the elderly are taking more medications than younger patients and have more contraindications, Dr. Augustin said. “I think this is a job for all registries for the future.”
Older individuals have typically been excluded from psoriasis clinical trials, making it difficult to extrapolate existing safety and efficacy data to those patients, he pointed out.
Accordingly, Dr. Augustin and coinvestigators evaluated prospectively collected data for patients with moderate to severe psoriasis who were included in either the German Psoriasis registry (PsoBest) or the Swiss Dermatology Network for Targeted Therapies (SDNTT). They split the cohort into a control group of those younger than 65 years (about 4,600 individuals) and those 65 years or older (about 740 individuals).
A few systemic drugs were used more frequently in the elderly, including apremilast and methotrexate, while most other drugs, including biologics, were used more frequently in younger patients, Dr. Augustin and colleagues found in their analysis. There were a few differences between the elderly and controls related to weight, smoking, and other factors, but not so pronounced that they would explain differences in the use of the systemic therapy.
Response rates to systemic therapies were generally comparable between the elderly and controls, as measured by Psoriasis Area Severity Index (PASI) 75 responses, PASI scores of 3 or less, and Dermatology Life Quality Index scores of one or less, he added.
One exception was methotrexate, which was more effective in the elderly after 3 and 6 months of treatment, but that difference was no longer apparent after 12 months of treatment, he said. Likewise, cyclosporine showed a higher response rate in younger patients at 3 months, but not at 6 or 12 months.
Based on the findings, “overall, we observed comparable responses between the controls and the elderly,” Dr. Augustin concluded.
The PsoBest registry is sponsored by CVderm, DDG, and BVDD, and “has been established and is operated in close cooperation with the involved pharmaceutical companies whose statutory pharmacovigilance requirements are taken into account,” according to a statement on the PsoBest website. The Swiss registry is supported by Janssen, AbbVie, Pfizer, Celgene, Lilly, and Novartis. The investigators did not report any disclosures.
MILAN – an analysis of German and Swiss registry data shows.
There was an “imbalance” in the types of medications prescribed for older and younger patients in the registry, with biologics used more frequently in younger patients, according to investigator Matthias Augustin, MD, director of the Institute For Health Services Research in Dermatology and Nursing in Hamburg, Germany.
However, the efficacy of systemic treatments, including nonbiologic therapies, was comparable between older and younger patients, other than a few differences in response rates early in treatment that disappeared with longer follow-up, Dr. Augustin said at the World Congress of Dermatology. Coupled with evidence from the medical literature, results of this registry data analysis suggest there are “very few reasons” to avoid use of systemic drugs in elderly patients.
“I think we should create awareness and discuss possible reasons that deter dermatologists from prescribing systemic antipsoriatics in elderly patients,” he said.
Concerns about safety and drug interactions in the elderly may be one barrier to prescribing systemic therapy in this patient population: More data on this issue are needed, since the elderly are taking more medications than younger patients and have more contraindications, Dr. Augustin said. “I think this is a job for all registries for the future.”
Older individuals have typically been excluded from psoriasis clinical trials, making it difficult to extrapolate existing safety and efficacy data to those patients, he pointed out.
Accordingly, Dr. Augustin and coinvestigators evaluated prospectively collected data for patients with moderate to severe psoriasis who were included in either the German Psoriasis registry (PsoBest) or the Swiss Dermatology Network for Targeted Therapies (SDNTT). They split the cohort into a control group of those younger than 65 years (about 4,600 individuals) and those 65 years or older (about 740 individuals).
A few systemic drugs were used more frequently in the elderly, including apremilast and methotrexate, while most other drugs, including biologics, were used more frequently in younger patients, Dr. Augustin and colleagues found in their analysis. There were a few differences between the elderly and controls related to weight, smoking, and other factors, but not so pronounced that they would explain differences in the use of the systemic therapy.
Response rates to systemic therapies were generally comparable between the elderly and controls, as measured by Psoriasis Area Severity Index (PASI) 75 responses, PASI scores of 3 or less, and Dermatology Life Quality Index scores of one or less, he added.
One exception was methotrexate, which was more effective in the elderly after 3 and 6 months of treatment, but that difference was no longer apparent after 12 months of treatment, he said. Likewise, cyclosporine showed a higher response rate in younger patients at 3 months, but not at 6 or 12 months.
Based on the findings, “overall, we observed comparable responses between the controls and the elderly,” Dr. Augustin concluded.
The PsoBest registry is sponsored by CVderm, DDG, and BVDD, and “has been established and is operated in close cooperation with the involved pharmaceutical companies whose statutory pharmacovigilance requirements are taken into account,” according to a statement on the PsoBest website. The Swiss registry is supported by Janssen, AbbVie, Pfizer, Celgene, Lilly, and Novartis. The investigators did not report any disclosures.
REPORTING FROM WCD2019
Obesity might be targetable driver of psoriatic arthritis progression
MADRID – Two sets of data presented at the European Congress of Rheumatology support the potential for weight loss to be a valuable adjunctive strategy for improving outcomes in patients with psoriatic arthritis (PsA).
One set, drawn from the ongoing PsABio observational study, correlated increasing body mass index with greater disease activity and greater disability. Another, based on patients followed for 12 months, showed that a weight loss of about 15% is associated with a significant reduction in PsA activity.
“As clinicians, we largely focus on drugs in the treatment of PsA, but these data draw attention to obesity as a potential target for improving outcomes in PsA,” said Stefan Siebert, MD, a rheumatologist at the Institute of Infection, Immunity, and Inflammation at the University of Glasgow (Scotland).
Dr. Siebert cautioned that his data show association, not causation, but he said these data add to a growing body of evidence that provide compelling support for trials to test the premise that weight loss improves outcomes.
Although not a trial, a study by Eva Klingberg, MD, PhD, of the Sahlgrenska Academy at the University of Gothenburg (Sweden) and her associates tested this premise and showed weight loss was associated with improvement in multiple PsA activity parameters 6 and 12 months after a significant weight loss program.
“This is just one study, so we need more data, but we are already using weight loss to manage PsA in obese patients in Sweden,” said Dr. Klingberg, speaking about her work in advance of the presentation. Like Dr. Siebert, she agreed that weight loss is an important potential treatment strategy in PsA.
In the observational PsABio study, which is following patients with PsA at rheumatology centers in eight European countries, the goal of its analysis was to evaluate disease activity and outcomes in relationship to baseline weight for patients starting a biologic therapy as part of standard clinical practice. Of the 917 patients evaluated, 450 started ustekinumab (Stelara) and 467 started a tumor necrosis factor inhibitor (TNFi). The researchers had weight data for 827 of these patients.
At the time of enrollment, 40% were overweight as defined by a body mass index (BMI) ranging from 25 to 29 kg/m2, and 30.4% were obese as defined by a BMI greater than 30 kg/m2. The mean baseline BMI was 28.1 kg/m2. The mean age of the study population was 49.7 years. Slightly more than half were female.
Relative to a BMI of 30 kg/m2 or less, higher BMI at baseline is shown in multiple regression analysis to be independently and significantly linked to disease activity assessed by the clinical Disease Activity Index for Psoriatic Arthritis (cDAPSA; P = .026), to patient perception of disease impact as measured by Psoriatic Arthritis Impact of Disease (PsAID-12; P less than .0001), and to greater disability as measured with Health Assessment Questionnaire Disability Index (HAQ-DI; P less than .0001).
“There are multiple sets of data that show obesity predicts who develops PsA. Our data further show that, of patients with PsA who are candidates for a biologic, those with obesity have greater disease activity,” Dr. Siebert said. “We are using all of these expensive drugs, but I think there is now a need to also focus on lifestyle interventions, in addition to drug therapy, to reduce disease activity and improve outcomes in PsA.”
The data to be presented by Dr. Klingberg provide a step in that direction. In this study, 46 PsA patients participated in a weight-loss treatment that restricted calorie intake to 640 kcal/day, and the researchers followed 39 of these patients for 1 year. The participants averaged 56 years old, and almost two-thirds were women. All enrolled patients had to have a BMI of at least 33 kg/m2, and the actual average BMI was 35 kg/m2. The median weight loss among the 39 patients followed for 1 year after the start of a 12- to 16-week weight-loss treatment was 16.1 kg, representing about 16% of their body weight at entry.
Dr. Klingberg showed that disease activity in those who achieved and maintained weight loss after the program was significant at 6 and 12 months when measured with the Psoriatic Arthritis Response Criteria (PsARC) or the American College of Rheumatology (ACR) 20, 50, and 70 criteria. In the 39 patients followed for 12 months, 36% fulfilled PsARC, and 54%, 36%, and 15% fulfilled the ACR 20, 50, and 70 responses, respectively.
“In Sweden, any obese individual can be referred for a weight loss program because of the multiple health benefits that are associated with weight reduction,” Dr. Klingberg explained. “We were able to look at patients with PsA and show that this substantially reduces the burden of their joint disease in addition to the other health advantages of losing weight.”
An improvement in symptoms is a logical expectation from reducing the mechanical strain imposed by obesity on inflamed joints, but Dr. Klingberg is more impressed by the potential for weight loss to reduce the proinflammatory signaling generated by adipose tissue. In PsA, there is evidence that weight loss reduces disease activity in the skin, as well as the joints, which supports this link.
“We need more data to document the benefits from weight loss in patients with PsA, but I think management of the comorbidities of PsA, including obesity, is something that should already be routinely discussed with patients,” Dr. Klingberg said.
Dr. Siebert has been a consultant to or speaker on behalf of AbbVie, Boehringer Ingelheim, Celgene, Janssen, Novartis, and UCB, and he has received research funding from Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, GlaxoSmithKline, Janssen, Novartis, Pfizer, and UCB. Dr. Klingberg has been an advisor to Novartis, a speaker on behalf of Lilly, and has receive research funding from Roche.
Mitchel L. Zoler contributed to this report.
SOURCE: Siebert S et al. Ann Rheum Dis. Jun 2019;78(suppl 2):69. Abstract OP0007. doi: 10.1136/annrheumdis-2019-eular.5841; Klingberg E et al. Ann Rheum Dis. Jun 2019;78(suppl 2):69-70. Abstract OP0008. doi: 10.1136/annrheumdis-2019-eular.5551.
MADRID – Two sets of data presented at the European Congress of Rheumatology support the potential for weight loss to be a valuable adjunctive strategy for improving outcomes in patients with psoriatic arthritis (PsA).
One set, drawn from the ongoing PsABio observational study, correlated increasing body mass index with greater disease activity and greater disability. Another, based on patients followed for 12 months, showed that a weight loss of about 15% is associated with a significant reduction in PsA activity.
“As clinicians, we largely focus on drugs in the treatment of PsA, but these data draw attention to obesity as a potential target for improving outcomes in PsA,” said Stefan Siebert, MD, a rheumatologist at the Institute of Infection, Immunity, and Inflammation at the University of Glasgow (Scotland).
Dr. Siebert cautioned that his data show association, not causation, but he said these data add to a growing body of evidence that provide compelling support for trials to test the premise that weight loss improves outcomes.
Although not a trial, a study by Eva Klingberg, MD, PhD, of the Sahlgrenska Academy at the University of Gothenburg (Sweden) and her associates tested this premise and showed weight loss was associated with improvement in multiple PsA activity parameters 6 and 12 months after a significant weight loss program.
“This is just one study, so we need more data, but we are already using weight loss to manage PsA in obese patients in Sweden,” said Dr. Klingberg, speaking about her work in advance of the presentation. Like Dr. Siebert, she agreed that weight loss is an important potential treatment strategy in PsA.
In the observational PsABio study, which is following patients with PsA at rheumatology centers in eight European countries, the goal of its analysis was to evaluate disease activity and outcomes in relationship to baseline weight for patients starting a biologic therapy as part of standard clinical practice. Of the 917 patients evaluated, 450 started ustekinumab (Stelara) and 467 started a tumor necrosis factor inhibitor (TNFi). The researchers had weight data for 827 of these patients.
At the time of enrollment, 40% were overweight as defined by a body mass index (BMI) ranging from 25 to 29 kg/m2, and 30.4% were obese as defined by a BMI greater than 30 kg/m2. The mean baseline BMI was 28.1 kg/m2. The mean age of the study population was 49.7 years. Slightly more than half were female.
Relative to a BMI of 30 kg/m2 or less, higher BMI at baseline is shown in multiple regression analysis to be independently and significantly linked to disease activity assessed by the clinical Disease Activity Index for Psoriatic Arthritis (cDAPSA; P = .026), to patient perception of disease impact as measured by Psoriatic Arthritis Impact of Disease (PsAID-12; P less than .0001), and to greater disability as measured with Health Assessment Questionnaire Disability Index (HAQ-DI; P less than .0001).
“There are multiple sets of data that show obesity predicts who develops PsA. Our data further show that, of patients with PsA who are candidates for a biologic, those with obesity have greater disease activity,” Dr. Siebert said. “We are using all of these expensive drugs, but I think there is now a need to also focus on lifestyle interventions, in addition to drug therapy, to reduce disease activity and improve outcomes in PsA.”
The data to be presented by Dr. Klingberg provide a step in that direction. In this study, 46 PsA patients participated in a weight-loss treatment that restricted calorie intake to 640 kcal/day, and the researchers followed 39 of these patients for 1 year. The participants averaged 56 years old, and almost two-thirds were women. All enrolled patients had to have a BMI of at least 33 kg/m2, and the actual average BMI was 35 kg/m2. The median weight loss among the 39 patients followed for 1 year after the start of a 12- to 16-week weight-loss treatment was 16.1 kg, representing about 16% of their body weight at entry.
Dr. Klingberg showed that disease activity in those who achieved and maintained weight loss after the program was significant at 6 and 12 months when measured with the Psoriatic Arthritis Response Criteria (PsARC) or the American College of Rheumatology (ACR) 20, 50, and 70 criteria. In the 39 patients followed for 12 months, 36% fulfilled PsARC, and 54%, 36%, and 15% fulfilled the ACR 20, 50, and 70 responses, respectively.
“In Sweden, any obese individual can be referred for a weight loss program because of the multiple health benefits that are associated with weight reduction,” Dr. Klingberg explained. “We were able to look at patients with PsA and show that this substantially reduces the burden of their joint disease in addition to the other health advantages of losing weight.”
An improvement in symptoms is a logical expectation from reducing the mechanical strain imposed by obesity on inflamed joints, but Dr. Klingberg is more impressed by the potential for weight loss to reduce the proinflammatory signaling generated by adipose tissue. In PsA, there is evidence that weight loss reduces disease activity in the skin, as well as the joints, which supports this link.
“We need more data to document the benefits from weight loss in patients with PsA, but I think management of the comorbidities of PsA, including obesity, is something that should already be routinely discussed with patients,” Dr. Klingberg said.
Dr. Siebert has been a consultant to or speaker on behalf of AbbVie, Boehringer Ingelheim, Celgene, Janssen, Novartis, and UCB, and he has received research funding from Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, GlaxoSmithKline, Janssen, Novartis, Pfizer, and UCB. Dr. Klingberg has been an advisor to Novartis, a speaker on behalf of Lilly, and has receive research funding from Roche.
Mitchel L. Zoler contributed to this report.
SOURCE: Siebert S et al. Ann Rheum Dis. Jun 2019;78(suppl 2):69. Abstract OP0007. doi: 10.1136/annrheumdis-2019-eular.5841; Klingberg E et al. Ann Rheum Dis. Jun 2019;78(suppl 2):69-70. Abstract OP0008. doi: 10.1136/annrheumdis-2019-eular.5551.
MADRID – Two sets of data presented at the European Congress of Rheumatology support the potential for weight loss to be a valuable adjunctive strategy for improving outcomes in patients with psoriatic arthritis (PsA).
One set, drawn from the ongoing PsABio observational study, correlated increasing body mass index with greater disease activity and greater disability. Another, based on patients followed for 12 months, showed that a weight loss of about 15% is associated with a significant reduction in PsA activity.
“As clinicians, we largely focus on drugs in the treatment of PsA, but these data draw attention to obesity as a potential target for improving outcomes in PsA,” said Stefan Siebert, MD, a rheumatologist at the Institute of Infection, Immunity, and Inflammation at the University of Glasgow (Scotland).
Dr. Siebert cautioned that his data show association, not causation, but he said these data add to a growing body of evidence that provide compelling support for trials to test the premise that weight loss improves outcomes.
Although not a trial, a study by Eva Klingberg, MD, PhD, of the Sahlgrenska Academy at the University of Gothenburg (Sweden) and her associates tested this premise and showed weight loss was associated with improvement in multiple PsA activity parameters 6 and 12 months after a significant weight loss program.
“This is just one study, so we need more data, but we are already using weight loss to manage PsA in obese patients in Sweden,” said Dr. Klingberg, speaking about her work in advance of the presentation. Like Dr. Siebert, she agreed that weight loss is an important potential treatment strategy in PsA.
In the observational PsABio study, which is following patients with PsA at rheumatology centers in eight European countries, the goal of its analysis was to evaluate disease activity and outcomes in relationship to baseline weight for patients starting a biologic therapy as part of standard clinical practice. Of the 917 patients evaluated, 450 started ustekinumab (Stelara) and 467 started a tumor necrosis factor inhibitor (TNFi). The researchers had weight data for 827 of these patients.
At the time of enrollment, 40% were overweight as defined by a body mass index (BMI) ranging from 25 to 29 kg/m2, and 30.4% were obese as defined by a BMI greater than 30 kg/m2. The mean baseline BMI was 28.1 kg/m2. The mean age of the study population was 49.7 years. Slightly more than half were female.
Relative to a BMI of 30 kg/m2 or less, higher BMI at baseline is shown in multiple regression analysis to be independently and significantly linked to disease activity assessed by the clinical Disease Activity Index for Psoriatic Arthritis (cDAPSA; P = .026), to patient perception of disease impact as measured by Psoriatic Arthritis Impact of Disease (PsAID-12; P less than .0001), and to greater disability as measured with Health Assessment Questionnaire Disability Index (HAQ-DI; P less than .0001).
“There are multiple sets of data that show obesity predicts who develops PsA. Our data further show that, of patients with PsA who are candidates for a biologic, those with obesity have greater disease activity,” Dr. Siebert said. “We are using all of these expensive drugs, but I think there is now a need to also focus on lifestyle interventions, in addition to drug therapy, to reduce disease activity and improve outcomes in PsA.”
The data to be presented by Dr. Klingberg provide a step in that direction. In this study, 46 PsA patients participated in a weight-loss treatment that restricted calorie intake to 640 kcal/day, and the researchers followed 39 of these patients for 1 year. The participants averaged 56 years old, and almost two-thirds were women. All enrolled patients had to have a BMI of at least 33 kg/m2, and the actual average BMI was 35 kg/m2. The median weight loss among the 39 patients followed for 1 year after the start of a 12- to 16-week weight-loss treatment was 16.1 kg, representing about 16% of their body weight at entry.
Dr. Klingberg showed that disease activity in those who achieved and maintained weight loss after the program was significant at 6 and 12 months when measured with the Psoriatic Arthritis Response Criteria (PsARC) or the American College of Rheumatology (ACR) 20, 50, and 70 criteria. In the 39 patients followed for 12 months, 36% fulfilled PsARC, and 54%, 36%, and 15% fulfilled the ACR 20, 50, and 70 responses, respectively.
“In Sweden, any obese individual can be referred for a weight loss program because of the multiple health benefits that are associated with weight reduction,” Dr. Klingberg explained. “We were able to look at patients with PsA and show that this substantially reduces the burden of their joint disease in addition to the other health advantages of losing weight.”
An improvement in symptoms is a logical expectation from reducing the mechanical strain imposed by obesity on inflamed joints, but Dr. Klingberg is more impressed by the potential for weight loss to reduce the proinflammatory signaling generated by adipose tissue. In PsA, there is evidence that weight loss reduces disease activity in the skin, as well as the joints, which supports this link.
“We need more data to document the benefits from weight loss in patients with PsA, but I think management of the comorbidities of PsA, including obesity, is something that should already be routinely discussed with patients,” Dr. Klingberg said.
Dr. Siebert has been a consultant to or speaker on behalf of AbbVie, Boehringer Ingelheim, Celgene, Janssen, Novartis, and UCB, and he has received research funding from Boehringer Ingelheim, Bristol-Myers Squibb, Celgene, GlaxoSmithKline, Janssen, Novartis, Pfizer, and UCB. Dr. Klingberg has been an advisor to Novartis, a speaker on behalf of Lilly, and has receive research funding from Roche.
Mitchel L. Zoler contributed to this report.
SOURCE: Siebert S et al. Ann Rheum Dis. Jun 2019;78(suppl 2):69. Abstract OP0007. doi: 10.1136/annrheumdis-2019-eular.5841; Klingberg E et al. Ann Rheum Dis. Jun 2019;78(suppl 2):69-70. Abstract OP0008. doi: 10.1136/annrheumdis-2019-eular.5551.
REPORTING FROM EULAR 2019 CONGRESS
VIDEO: Dr. Lihi Eder on the diagnostic challenges of psoriatic arthritis
How strong are the links between psoriasis and psoriatic arthritis? What are the biggest challenges that keep clinicians from diagnosing PsA? And which approaches show promise in helping prevent PsA? In this expert analysis, Lihi Eder, MD, PhD, of Women’s College Research Institute, Toronto, and the University of Toronto offers answers to these questions and more.
How strong are the links between psoriasis and psoriatic arthritis? What are the biggest challenges that keep clinicians from diagnosing PsA? And which approaches show promise in helping prevent PsA? In this expert analysis, Lihi Eder, MD, PhD, of Women’s College Research Institute, Toronto, and the University of Toronto offers answers to these questions and more.
How strong are the links between psoriasis and psoriatic arthritis? What are the biggest challenges that keep clinicians from diagnosing PsA? And which approaches show promise in helping prevent PsA? In this expert analysis, Lihi Eder, MD, PhD, of Women’s College Research Institute, Toronto, and the University of Toronto offers answers to these questions and more.
Ixekizumab surpasses adalimumab in PsA head-to-head study
MADRID – The interleukin-17A inhibitor ixekizumab surpassed the tumor necrosis factor inhibitor adalimumab for treatment of patients with psoriatic arthritis in a multicenter, randomized study with 566 enrolled patients, the first reported results from a head-to-head comparison for this disease of two different classes of biological drugs.
The results showed that a standard, 24-week regimen with each of these agents, both of which already have regulatory approval for treating psoriatic arthritis (PsA), led to achievement of the primary endpoint in 36% of patients treated with ixekizumab (Taltz) and 28% of patients treated with adalimumab (Humira), a statistically significant difference, Philip J. Mease, MD, said at the European Congress of Rheumatology.
“Ixekizumab was superior to adalimumab for improving signs and symptoms of active PsA, as measured by simultaneous achievement of ACR50 [American College of Rheumatology] and PASI 100 [Psoriasis Area and Severity Index],” the study’s primary endpoint that combined a measure of joint disease activity with a measure of skin involvement, said Dr. Mease, a rheumatologist at Swedish Medical Center in Seattle.
This unconventional primary endpoint for testing drugs that treat PsA was called out during discussion of the report for having an inherent bias favoring ixekizumab by its inclusion of a skin outcome that received equal weight with an assessment tool that focused on joint responses. “This was a very unusual primary endpoint that favored ixekizumab,” Roy M. Fleischmann, MD, a Dallas rheumatologist, commented during the discussion.
Dr. Mease readily admitted that the study’s design stacked the deck in favor of ixekizumab, but he added that this decision reflected a desire by the researchers who ran the study to choose a primary endpoint that represented both of the prominent pathologies seen in patients with PsA.
The primary endpoint used in the study “looks at PsA more holistically,” Dr. Mease said in an interview. “It forced clinicians to look beyond just the joints,” in PsA patients. “That has been a limitation of prior PsA treatment assessments,” which until this study have uniformly used single primary outcomes that focus on joint responses, most commonly the ACR20 measure of joint disease activity.
The SPIRIT-H2H (A Study of Ixekizumab [LY2439821] Versus Adalimumab in Participants With Psoriatic Arthritis) study enrolled adults with active PsA who had never before received treatment with a biological drug. Enrolled patients had to have both active disease in their joints and active plaque psoriasis, with an inadequate response to at least one conventional synthetic disease-modifying antirheumatic drug. The 566 patients randomized in the study averaged about 48 years old, a bit more than half were men, and patients averaged about 6 years with diagnosed PsA and about 15 years diagnosed with psoriasis. Just over two-thirds of the patients were on concurrent treatment with a conventional synthetic agent, most often methotrexate.
The two components of the primary endpoint each showed the anticipated result. Among the 269 patients treated with adalimumab for the full 24 weeks, 47% had an ACR50 response, as did 51% of the 262 patients who completed their full course of ixekizumab, a between-group difference that was not statistically significant. In contrast, the PASI 100 measure of complete skin resolution occurred in 47% of the adalimumab-treated patients and 60% of those on ixekizumab, a statistically significant difference.
Dr. Mease reported results for several other efficacy measures, and what was notable was statistically significant superiority for ixekizumab in a measure of entheses disease activity, the SPARCC [Spondyloarthritis Research Consortium of Canada] Enthesitis Index, which fell to zero in 57% of the ixekizumab patients and 45% of those on adalimumab. “It makes you wonder whether there is something special about interleukin-17 in enthesitis,” Dr. Mease said.
The safety results of the study were consistent with the known adverse effect profiles of both drugs.
The impact of these findings on practice remains to be seen, and will likely depend on both cost considerations as well as clinicians trying to tailor drug choices to individual patients. The relatively new drug, ixekizumab, is consequentially more expensive than the older adalimumab, which has had its price depressed by the recent introduction of a biosimilar agent as well as long-standing competition from multiple TNF inhibitors.
“I think in the United States insurers will continue to steer patients toward whichever drug is cheapest among the highly-effective options,” but this result should lead to more use of interleukin-17 inhibitors as second-line agents for PsA, and it might push some clinicians to prescribe it as the first-line treatment, Dr. Mease said. He was confident that the efficacy profile shown by ixekizumab in SPIRIT-H2H was likely a class effect. Economics aside, the impetus to prescribe ixekizumab or another interleukin-17 inhibitor will be greatest when a patient has more extensive skin involvement, while for patients with little or no skin symptoms clinicians will likely stick with the more established TNF inhibitors as the first drug class to prescribe for PsA.
SPIRIT-H2H was sponsored by Eli Lilly, the company that markets ixekizumab (Taltz). Dr. Mease has been a consultant to, speaker for, and received research funding from Eli Lilly and from several other companies. Dr. Fleischmann has been a consultant to and has received research funding from several companies including Eli Lilly.
SOURCE: Mease PJ et al. Ann Rheum Dis. 2019 Jun. doi: 10.1136/annrheumdis-2019-eular.8709.
The results from SPIRIT-H2H confirm with rigorously-collected, prospective data what we had already seen during our routine use of ixekizumab for treating patients with psoriatic arthritis: it does a better job of resolving skin manifestations than any tumor necrosis factor (TNF) inhibitor. For joint symptoms, the two drugs are similar, but for skin ixekizumab has substantial superiority.
I had been hopeful that inhibition of interleukin-17 would surpass TNF inhibition for resolution of joint symptoms, but it looks like they are similar. That’s a little below expectations. But working well for improving skin symptoms is important because it’s something that many patients care about, especially those with more substantial skin symptoms. When matching the best drug to each PsA patient other considerations also exist, such as ease of use. These drugs are delivered by different devices, and ease of administration also matters to patients.
I think it would be premature to presume that the effects shown by ixekizumab extrapolate to all the other interleukin-17 inhibitors. Some of these drugs act via different mechanisms, and so the SPIRIT-H2H results may very well not reflect a class effect.
Thomas Dörner, MD, is professor of rheumatology at Charité University Hospital in Berlin. He has been a consultant to Eli Lilly, as well as to AbbVie, Celgene, Novartis, Pfizer, and Roche, he has been a speaker on behalf of Amgen, Biogen, and Celgene, and he has received research funding from Chugai, Janssen, Roche, and Sanofi. He made these comments in an interview.
The results from SPIRIT-H2H confirm with rigorously-collected, prospective data what we had already seen during our routine use of ixekizumab for treating patients with psoriatic arthritis: it does a better job of resolving skin manifestations than any tumor necrosis factor (TNF) inhibitor. For joint symptoms, the two drugs are similar, but for skin ixekizumab has substantial superiority.
I had been hopeful that inhibition of interleukin-17 would surpass TNF inhibition for resolution of joint symptoms, but it looks like they are similar. That’s a little below expectations. But working well for improving skin symptoms is important because it’s something that many patients care about, especially those with more substantial skin symptoms. When matching the best drug to each PsA patient other considerations also exist, such as ease of use. These drugs are delivered by different devices, and ease of administration also matters to patients.
I think it would be premature to presume that the effects shown by ixekizumab extrapolate to all the other interleukin-17 inhibitors. Some of these drugs act via different mechanisms, and so the SPIRIT-H2H results may very well not reflect a class effect.
Thomas Dörner, MD, is professor of rheumatology at Charité University Hospital in Berlin. He has been a consultant to Eli Lilly, as well as to AbbVie, Celgene, Novartis, Pfizer, and Roche, he has been a speaker on behalf of Amgen, Biogen, and Celgene, and he has received research funding from Chugai, Janssen, Roche, and Sanofi. He made these comments in an interview.
The results from SPIRIT-H2H confirm with rigorously-collected, prospective data what we had already seen during our routine use of ixekizumab for treating patients with psoriatic arthritis: it does a better job of resolving skin manifestations than any tumor necrosis factor (TNF) inhibitor. For joint symptoms, the two drugs are similar, but for skin ixekizumab has substantial superiority.
I had been hopeful that inhibition of interleukin-17 would surpass TNF inhibition for resolution of joint symptoms, but it looks like they are similar. That’s a little below expectations. But working well for improving skin symptoms is important because it’s something that many patients care about, especially those with more substantial skin symptoms. When matching the best drug to each PsA patient other considerations also exist, such as ease of use. These drugs are delivered by different devices, and ease of administration also matters to patients.
I think it would be premature to presume that the effects shown by ixekizumab extrapolate to all the other interleukin-17 inhibitors. Some of these drugs act via different mechanisms, and so the SPIRIT-H2H results may very well not reflect a class effect.
Thomas Dörner, MD, is professor of rheumatology at Charité University Hospital in Berlin. He has been a consultant to Eli Lilly, as well as to AbbVie, Celgene, Novartis, Pfizer, and Roche, he has been a speaker on behalf of Amgen, Biogen, and Celgene, and he has received research funding from Chugai, Janssen, Roche, and Sanofi. He made these comments in an interview.
MADRID – The interleukin-17A inhibitor ixekizumab surpassed the tumor necrosis factor inhibitor adalimumab for treatment of patients with psoriatic arthritis in a multicenter, randomized study with 566 enrolled patients, the first reported results from a head-to-head comparison for this disease of two different classes of biological drugs.
The results showed that a standard, 24-week regimen with each of these agents, both of which already have regulatory approval for treating psoriatic arthritis (PsA), led to achievement of the primary endpoint in 36% of patients treated with ixekizumab (Taltz) and 28% of patients treated with adalimumab (Humira), a statistically significant difference, Philip J. Mease, MD, said at the European Congress of Rheumatology.
“Ixekizumab was superior to adalimumab for improving signs and symptoms of active PsA, as measured by simultaneous achievement of ACR50 [American College of Rheumatology] and PASI 100 [Psoriasis Area and Severity Index],” the study’s primary endpoint that combined a measure of joint disease activity with a measure of skin involvement, said Dr. Mease, a rheumatologist at Swedish Medical Center in Seattle.
This unconventional primary endpoint for testing drugs that treat PsA was called out during discussion of the report for having an inherent bias favoring ixekizumab by its inclusion of a skin outcome that received equal weight with an assessment tool that focused on joint responses. “This was a very unusual primary endpoint that favored ixekizumab,” Roy M. Fleischmann, MD, a Dallas rheumatologist, commented during the discussion.
Dr. Mease readily admitted that the study’s design stacked the deck in favor of ixekizumab, but he added that this decision reflected a desire by the researchers who ran the study to choose a primary endpoint that represented both of the prominent pathologies seen in patients with PsA.
The primary endpoint used in the study “looks at PsA more holistically,” Dr. Mease said in an interview. “It forced clinicians to look beyond just the joints,” in PsA patients. “That has been a limitation of prior PsA treatment assessments,” which until this study have uniformly used single primary outcomes that focus on joint responses, most commonly the ACR20 measure of joint disease activity.
The SPIRIT-H2H (A Study of Ixekizumab [LY2439821] Versus Adalimumab in Participants With Psoriatic Arthritis) study enrolled adults with active PsA who had never before received treatment with a biological drug. Enrolled patients had to have both active disease in their joints and active plaque psoriasis, with an inadequate response to at least one conventional synthetic disease-modifying antirheumatic drug. The 566 patients randomized in the study averaged about 48 years old, a bit more than half were men, and patients averaged about 6 years with diagnosed PsA and about 15 years diagnosed with psoriasis. Just over two-thirds of the patients were on concurrent treatment with a conventional synthetic agent, most often methotrexate.
The two components of the primary endpoint each showed the anticipated result. Among the 269 patients treated with adalimumab for the full 24 weeks, 47% had an ACR50 response, as did 51% of the 262 patients who completed their full course of ixekizumab, a between-group difference that was not statistically significant. In contrast, the PASI 100 measure of complete skin resolution occurred in 47% of the adalimumab-treated patients and 60% of those on ixekizumab, a statistically significant difference.
Dr. Mease reported results for several other efficacy measures, and what was notable was statistically significant superiority for ixekizumab in a measure of entheses disease activity, the SPARCC [Spondyloarthritis Research Consortium of Canada] Enthesitis Index, which fell to zero in 57% of the ixekizumab patients and 45% of those on adalimumab. “It makes you wonder whether there is something special about interleukin-17 in enthesitis,” Dr. Mease said.
The safety results of the study were consistent with the known adverse effect profiles of both drugs.
The impact of these findings on practice remains to be seen, and will likely depend on both cost considerations as well as clinicians trying to tailor drug choices to individual patients. The relatively new drug, ixekizumab, is consequentially more expensive than the older adalimumab, which has had its price depressed by the recent introduction of a biosimilar agent as well as long-standing competition from multiple TNF inhibitors.
“I think in the United States insurers will continue to steer patients toward whichever drug is cheapest among the highly-effective options,” but this result should lead to more use of interleukin-17 inhibitors as second-line agents for PsA, and it might push some clinicians to prescribe it as the first-line treatment, Dr. Mease said. He was confident that the efficacy profile shown by ixekizumab in SPIRIT-H2H was likely a class effect. Economics aside, the impetus to prescribe ixekizumab or another interleukin-17 inhibitor will be greatest when a patient has more extensive skin involvement, while for patients with little or no skin symptoms clinicians will likely stick with the more established TNF inhibitors as the first drug class to prescribe for PsA.
SPIRIT-H2H was sponsored by Eli Lilly, the company that markets ixekizumab (Taltz). Dr. Mease has been a consultant to, speaker for, and received research funding from Eli Lilly and from several other companies. Dr. Fleischmann has been a consultant to and has received research funding from several companies including Eli Lilly.
SOURCE: Mease PJ et al. Ann Rheum Dis. 2019 Jun. doi: 10.1136/annrheumdis-2019-eular.8709.
MADRID – The interleukin-17A inhibitor ixekizumab surpassed the tumor necrosis factor inhibitor adalimumab for treatment of patients with psoriatic arthritis in a multicenter, randomized study with 566 enrolled patients, the first reported results from a head-to-head comparison for this disease of two different classes of biological drugs.
The results showed that a standard, 24-week regimen with each of these agents, both of which already have regulatory approval for treating psoriatic arthritis (PsA), led to achievement of the primary endpoint in 36% of patients treated with ixekizumab (Taltz) and 28% of patients treated with adalimumab (Humira), a statistically significant difference, Philip J. Mease, MD, said at the European Congress of Rheumatology.
“Ixekizumab was superior to adalimumab for improving signs and symptoms of active PsA, as measured by simultaneous achievement of ACR50 [American College of Rheumatology] and PASI 100 [Psoriasis Area and Severity Index],” the study’s primary endpoint that combined a measure of joint disease activity with a measure of skin involvement, said Dr. Mease, a rheumatologist at Swedish Medical Center in Seattle.
This unconventional primary endpoint for testing drugs that treat PsA was called out during discussion of the report for having an inherent bias favoring ixekizumab by its inclusion of a skin outcome that received equal weight with an assessment tool that focused on joint responses. “This was a very unusual primary endpoint that favored ixekizumab,” Roy M. Fleischmann, MD, a Dallas rheumatologist, commented during the discussion.
Dr. Mease readily admitted that the study’s design stacked the deck in favor of ixekizumab, but he added that this decision reflected a desire by the researchers who ran the study to choose a primary endpoint that represented both of the prominent pathologies seen in patients with PsA.
The primary endpoint used in the study “looks at PsA more holistically,” Dr. Mease said in an interview. “It forced clinicians to look beyond just the joints,” in PsA patients. “That has been a limitation of prior PsA treatment assessments,” which until this study have uniformly used single primary outcomes that focus on joint responses, most commonly the ACR20 measure of joint disease activity.
The SPIRIT-H2H (A Study of Ixekizumab [LY2439821] Versus Adalimumab in Participants With Psoriatic Arthritis) study enrolled adults with active PsA who had never before received treatment with a biological drug. Enrolled patients had to have both active disease in their joints and active plaque psoriasis, with an inadequate response to at least one conventional synthetic disease-modifying antirheumatic drug. The 566 patients randomized in the study averaged about 48 years old, a bit more than half were men, and patients averaged about 6 years with diagnosed PsA and about 15 years diagnosed with psoriasis. Just over two-thirds of the patients were on concurrent treatment with a conventional synthetic agent, most often methotrexate.
The two components of the primary endpoint each showed the anticipated result. Among the 269 patients treated with adalimumab for the full 24 weeks, 47% had an ACR50 response, as did 51% of the 262 patients who completed their full course of ixekizumab, a between-group difference that was not statistically significant. In contrast, the PASI 100 measure of complete skin resolution occurred in 47% of the adalimumab-treated patients and 60% of those on ixekizumab, a statistically significant difference.
Dr. Mease reported results for several other efficacy measures, and what was notable was statistically significant superiority for ixekizumab in a measure of entheses disease activity, the SPARCC [Spondyloarthritis Research Consortium of Canada] Enthesitis Index, which fell to zero in 57% of the ixekizumab patients and 45% of those on adalimumab. “It makes you wonder whether there is something special about interleukin-17 in enthesitis,” Dr. Mease said.
The safety results of the study were consistent with the known adverse effect profiles of both drugs.
The impact of these findings on practice remains to be seen, and will likely depend on both cost considerations as well as clinicians trying to tailor drug choices to individual patients. The relatively new drug, ixekizumab, is consequentially more expensive than the older adalimumab, which has had its price depressed by the recent introduction of a biosimilar agent as well as long-standing competition from multiple TNF inhibitors.
“I think in the United States insurers will continue to steer patients toward whichever drug is cheapest among the highly-effective options,” but this result should lead to more use of interleukin-17 inhibitors as second-line agents for PsA, and it might push some clinicians to prescribe it as the first-line treatment, Dr. Mease said. He was confident that the efficacy profile shown by ixekizumab in SPIRIT-H2H was likely a class effect. Economics aside, the impetus to prescribe ixekizumab or another interleukin-17 inhibitor will be greatest when a patient has more extensive skin involvement, while for patients with little or no skin symptoms clinicians will likely stick with the more established TNF inhibitors as the first drug class to prescribe for PsA.
SPIRIT-H2H was sponsored by Eli Lilly, the company that markets ixekizumab (Taltz). Dr. Mease has been a consultant to, speaker for, and received research funding from Eli Lilly and from several other companies. Dr. Fleischmann has been a consultant to and has received research funding from several companies including Eli Lilly.
SOURCE: Mease PJ et al. Ann Rheum Dis. 2019 Jun. doi: 10.1136/annrheumdis-2019-eular.8709.
REPORTING FROM THE EULAR 2019 CONGRESS
Carotid ultrasound may aid cardiovascular risk stratification of patients with psoriatic disease
according to findings from a retrospective study.
When added to the Framingham risk score, the measurement significantly improved its predictive ability, Curtis Sobchak, MD, and colleagues wrote in Arthritis & Rheumatology.
The findings indicate that carotid ultrasound could be a useful addition to cardiovascular risk stratification among these patients.
“Traditional algorithms do not consider other factors that may contribute to increased cardiovascular risk in rheumatic disease patients and tend to underestimate cardiovascular risk,” wrote Dr. Sobchak of the University of Toronto and coauthors.
“The advantage of ultrasound over other modalities for vascular imaging includes lack of radiation, low cost of the examination, and its widespread use in rheumatology for joint evaluation. Thus, this assessment could potentially be performed ‘at the bedside’ during consultation to provide immediate valuable information to complement clinical data from history, physical examination, and laboratory data,” they added.
The study retrospectively examined a prospective, observational cohort of 559 patients with psoriasis alone or psoriasis and psoriatic arthritis enrolled in the University of Toronto Psoriatic Disease Program. The investigators evaluated five ultrasound measures of atherosclerosis, including total plaque area (TPA), mean carotid intima-media thickness (cIMT), maximal cIMT, plaque category, and TPA category. Then they analyzed the risk relationship with major cardiovascular events (CVEs) classified as myocardial infarction, unstable angina, ischemic stroke, revascularization procedures, or cardiovascular-related death. Minor CVEs included stable angina, exacerbation of congestive heart failure, and transient ischemic attack over a mean follow-up close to 4 years.
The mean baseline TPA was 0.18 cm2 and mean cIMT was 639 mcm. Most patients had plaques, including 27.0% with unilateral and 31.5% with bilateral plaques.
The rate of a first CVE during the study period was 1.11 per 100 patient-years, and the rate of a first major CVE was 0.91 per 100 patient-years. The risk of each was significantly related to a higher baseline burden of atherosclerosis.
A multivariate analysis determined that increased TPA at baseline increased the risk of an event by nearly 200% (hazard ratio, 2.85). Mean cIMT was not an independent predictor in the final analysis, “suggesting that TPA is a stronger predictor for CVE than cIMT,” the authors wrote.
Finally, they examined the predictive value of atherosclerosis alone, as well as combined with the Framingham risk score. The 5-year model indicated that the bivariate model was slightly more accurate than the Framingham score alone (area under the curve, 0.84 vs. 0.81), although this was not a significant difference. The predictive value of the Framingham risk score plus maximal cIMT, mean cIMT, or TPA all significantly improved when they were calculated using only high-risk patients (those above the treatment threshold for dyslipidemia).
“To the best of our knowledge this is the first study to assess the utility of various measures of carotid atherosclerosis to predict CVE in patients with psoriasis and PsA [psoriatic arthritis]. ... Combining vascular imaging data with clinical and laboratory measures of traditional cardiovascular risk factors could improve accuracy of cardiovascular risk stratification in patients with psoriatic disease and facilitate earlier initiation of appropriate treatment to reduce CVE in this population,” the investigators wrote.
The study was supported in part by a Young Investigator Operating Grant from the Arthritis Society. Dr. Sobchak had no financial disclosures.
SOURCE: Sobchak C et al. Arthritis Rheumatol. 2019 Jun 5. doi: 10.1002/art.40925.
according to findings from a retrospective study.
When added to the Framingham risk score, the measurement significantly improved its predictive ability, Curtis Sobchak, MD, and colleagues wrote in Arthritis & Rheumatology.
The findings indicate that carotid ultrasound could be a useful addition to cardiovascular risk stratification among these patients.
“Traditional algorithms do not consider other factors that may contribute to increased cardiovascular risk in rheumatic disease patients and tend to underestimate cardiovascular risk,” wrote Dr. Sobchak of the University of Toronto and coauthors.
“The advantage of ultrasound over other modalities for vascular imaging includes lack of radiation, low cost of the examination, and its widespread use in rheumatology for joint evaluation. Thus, this assessment could potentially be performed ‘at the bedside’ during consultation to provide immediate valuable information to complement clinical data from history, physical examination, and laboratory data,” they added.
The study retrospectively examined a prospective, observational cohort of 559 patients with psoriasis alone or psoriasis and psoriatic arthritis enrolled in the University of Toronto Psoriatic Disease Program. The investigators evaluated five ultrasound measures of atherosclerosis, including total plaque area (TPA), mean carotid intima-media thickness (cIMT), maximal cIMT, plaque category, and TPA category. Then they analyzed the risk relationship with major cardiovascular events (CVEs) classified as myocardial infarction, unstable angina, ischemic stroke, revascularization procedures, or cardiovascular-related death. Minor CVEs included stable angina, exacerbation of congestive heart failure, and transient ischemic attack over a mean follow-up close to 4 years.
The mean baseline TPA was 0.18 cm2 and mean cIMT was 639 mcm. Most patients had plaques, including 27.0% with unilateral and 31.5% with bilateral plaques.
The rate of a first CVE during the study period was 1.11 per 100 patient-years, and the rate of a first major CVE was 0.91 per 100 patient-years. The risk of each was significantly related to a higher baseline burden of atherosclerosis.
A multivariate analysis determined that increased TPA at baseline increased the risk of an event by nearly 200% (hazard ratio, 2.85). Mean cIMT was not an independent predictor in the final analysis, “suggesting that TPA is a stronger predictor for CVE than cIMT,” the authors wrote.
Finally, they examined the predictive value of atherosclerosis alone, as well as combined with the Framingham risk score. The 5-year model indicated that the bivariate model was slightly more accurate than the Framingham score alone (area under the curve, 0.84 vs. 0.81), although this was not a significant difference. The predictive value of the Framingham risk score plus maximal cIMT, mean cIMT, or TPA all significantly improved when they were calculated using only high-risk patients (those above the treatment threshold for dyslipidemia).
“To the best of our knowledge this is the first study to assess the utility of various measures of carotid atherosclerosis to predict CVE in patients with psoriasis and PsA [psoriatic arthritis]. ... Combining vascular imaging data with clinical and laboratory measures of traditional cardiovascular risk factors could improve accuracy of cardiovascular risk stratification in patients with psoriatic disease and facilitate earlier initiation of appropriate treatment to reduce CVE in this population,” the investigators wrote.
The study was supported in part by a Young Investigator Operating Grant from the Arthritis Society. Dr. Sobchak had no financial disclosures.
SOURCE: Sobchak C et al. Arthritis Rheumatol. 2019 Jun 5. doi: 10.1002/art.40925.
according to findings from a retrospective study.
When added to the Framingham risk score, the measurement significantly improved its predictive ability, Curtis Sobchak, MD, and colleagues wrote in Arthritis & Rheumatology.
The findings indicate that carotid ultrasound could be a useful addition to cardiovascular risk stratification among these patients.
“Traditional algorithms do not consider other factors that may contribute to increased cardiovascular risk in rheumatic disease patients and tend to underestimate cardiovascular risk,” wrote Dr. Sobchak of the University of Toronto and coauthors.
“The advantage of ultrasound over other modalities for vascular imaging includes lack of radiation, low cost of the examination, and its widespread use in rheumatology for joint evaluation. Thus, this assessment could potentially be performed ‘at the bedside’ during consultation to provide immediate valuable information to complement clinical data from history, physical examination, and laboratory data,” they added.
The study retrospectively examined a prospective, observational cohort of 559 patients with psoriasis alone or psoriasis and psoriatic arthritis enrolled in the University of Toronto Psoriatic Disease Program. The investigators evaluated five ultrasound measures of atherosclerosis, including total plaque area (TPA), mean carotid intima-media thickness (cIMT), maximal cIMT, plaque category, and TPA category. Then they analyzed the risk relationship with major cardiovascular events (CVEs) classified as myocardial infarction, unstable angina, ischemic stroke, revascularization procedures, or cardiovascular-related death. Minor CVEs included stable angina, exacerbation of congestive heart failure, and transient ischemic attack over a mean follow-up close to 4 years.
The mean baseline TPA was 0.18 cm2 and mean cIMT was 639 mcm. Most patients had plaques, including 27.0% with unilateral and 31.5% with bilateral plaques.
The rate of a first CVE during the study period was 1.11 per 100 patient-years, and the rate of a first major CVE was 0.91 per 100 patient-years. The risk of each was significantly related to a higher baseline burden of atherosclerosis.
A multivariate analysis determined that increased TPA at baseline increased the risk of an event by nearly 200% (hazard ratio, 2.85). Mean cIMT was not an independent predictor in the final analysis, “suggesting that TPA is a stronger predictor for CVE than cIMT,” the authors wrote.
Finally, they examined the predictive value of atherosclerosis alone, as well as combined with the Framingham risk score. The 5-year model indicated that the bivariate model was slightly more accurate than the Framingham score alone (area under the curve, 0.84 vs. 0.81), although this was not a significant difference. The predictive value of the Framingham risk score plus maximal cIMT, mean cIMT, or TPA all significantly improved when they were calculated using only high-risk patients (those above the treatment threshold for dyslipidemia).
“To the best of our knowledge this is the first study to assess the utility of various measures of carotid atherosclerosis to predict CVE in patients with psoriasis and PsA [psoriatic arthritis]. ... Combining vascular imaging data with clinical and laboratory measures of traditional cardiovascular risk factors could improve accuracy of cardiovascular risk stratification in patients with psoriatic disease and facilitate earlier initiation of appropriate treatment to reduce CVE in this population,” the investigators wrote.
The study was supported in part by a Young Investigator Operating Grant from the Arthritis Society. Dr. Sobchak had no financial disclosures.
SOURCE: Sobchak C et al. Arthritis Rheumatol. 2019 Jun 5. doi: 10.1002/art.40925.
FROM ARTHRITIS & RHEUMATOLOGY
Psoriatic Arthritis Journal Scan: May 2019
The contribution of joint and skin improvements to the health-related quality of life of patients with psoriatic arthritis: a post hoc analysis of two randomised controlled studies.
Kavanaugh A, Gottlieb A, Morita A, et al. Ann Rheum Dis. 2019 May 21.
An integrated analysis to determine the contribution of joint and skin improvements to health-related quality of life (HRQoL) in patients with psoriatic arthritis (PsA). Optimal improvements in patients' HRQoL were dependent on successful treatment of both joint and skin symptoms.
Content validity and psychometric evaluation of Functional Assessment of Chronic Illness Therapy-Fatigue in patients with psoriatic arthritis.
Cella D, Wilson H, Shalhoub H, et al. J Patient Rep Outcomes. 2019 May 20;3(1):30.
One-on-one semi-structured qualitative interviews with adult patients evaluated the measurement properties (e.g., content validity, reliability, and ability to detect change) of the Functional Assessment of Chronic Illness Therapy (FACIT)-Fatigue scale in patients with active psoriatic arthritis (PsA). Fatigue was confirmed to be an important symptom to patients with PsA, and FACIT-Fatigue was found to be a reliable and valid measure in this population.
Birth Outcomes and Disease Activity during Pregnancy in a Prospective Cohort of Women with Psoriatic Arthritis and Ankylosing Spondylitis.
Smith CJF, Bandoli G, Kavanaugh A, Chambers CD. Arthritis Care Res (Hoboken). 2019 May 10.
Women with PsA and AS have increased risk for selected adverse pregnancy outcomes. Compared to healthy controls (n=717), PsA (n = 117) was associated with increased risk for moderate preterm delivery (32-36 weeks' gestation), oligohydramnios, and Caesarean delivery. Active disease and corticosteroid use may increase the risk for some adverse pregnancy outcomes in women with these conditions.
Differential synovial tissue biomarkers among psoriatic arthritis and rheumatoid factor/anti-citrulline antibody-negative rheumatoid arthritis.
Alivernini S, Bruno D, Tolusso B, et al. Arthritis Res Ther. 2019 May 9;21(1):116.
The aim of the study was to identify synovial tissue (ST) biomarkers differentially expressed in PsA and seronegative rheumatoid arthritis and test their predictive value of therapeutic response. Histological analysis of ST may help to solve the clinical overlap between the two diseases and provides prognostic data about the therapy success.
Psoriatic arthritis - new perspectives.
Krakowski P, Gerkowicz A, Piertrzak A, et al. Arch Med Sci. 2019 May;15(3):580-589.
The management of PsA requires the care of a multidisciplinary team, which should include dermatologists, rheumatologists, physiotherapists, and orthopedic surgeons. PsA should be diagnosed as early as possible to slow down joint damage and progression of disability.
The contribution of joint and skin improvements to the health-related quality of life of patients with psoriatic arthritis: a post hoc analysis of two randomised controlled studies.
Kavanaugh A, Gottlieb A, Morita A, et al. Ann Rheum Dis. 2019 May 21.
An integrated analysis to determine the contribution of joint and skin improvements to health-related quality of life (HRQoL) in patients with psoriatic arthritis (PsA). Optimal improvements in patients' HRQoL were dependent on successful treatment of both joint and skin symptoms.
Content validity and psychometric evaluation of Functional Assessment of Chronic Illness Therapy-Fatigue in patients with psoriatic arthritis.
Cella D, Wilson H, Shalhoub H, et al. J Patient Rep Outcomes. 2019 May 20;3(1):30.
One-on-one semi-structured qualitative interviews with adult patients evaluated the measurement properties (e.g., content validity, reliability, and ability to detect change) of the Functional Assessment of Chronic Illness Therapy (FACIT)-Fatigue scale in patients with active psoriatic arthritis (PsA). Fatigue was confirmed to be an important symptom to patients with PsA, and FACIT-Fatigue was found to be a reliable and valid measure in this population.
Birth Outcomes and Disease Activity during Pregnancy in a Prospective Cohort of Women with Psoriatic Arthritis and Ankylosing Spondylitis.
Smith CJF, Bandoli G, Kavanaugh A, Chambers CD. Arthritis Care Res (Hoboken). 2019 May 10.
Women with PsA and AS have increased risk for selected adverse pregnancy outcomes. Compared to healthy controls (n=717), PsA (n = 117) was associated with increased risk for moderate preterm delivery (32-36 weeks' gestation), oligohydramnios, and Caesarean delivery. Active disease and corticosteroid use may increase the risk for some adverse pregnancy outcomes in women with these conditions.
Differential synovial tissue biomarkers among psoriatic arthritis and rheumatoid factor/anti-citrulline antibody-negative rheumatoid arthritis.
Alivernini S, Bruno D, Tolusso B, et al. Arthritis Res Ther. 2019 May 9;21(1):116.
The aim of the study was to identify synovial tissue (ST) biomarkers differentially expressed in PsA and seronegative rheumatoid arthritis and test their predictive value of therapeutic response. Histological analysis of ST may help to solve the clinical overlap between the two diseases and provides prognostic data about the therapy success.
Psoriatic arthritis - new perspectives.
Krakowski P, Gerkowicz A, Piertrzak A, et al. Arch Med Sci. 2019 May;15(3):580-589.
The management of PsA requires the care of a multidisciplinary team, which should include dermatologists, rheumatologists, physiotherapists, and orthopedic surgeons. PsA should be diagnosed as early as possible to slow down joint damage and progression of disability.
The contribution of joint and skin improvements to the health-related quality of life of patients with psoriatic arthritis: a post hoc analysis of two randomised controlled studies.
Kavanaugh A, Gottlieb A, Morita A, et al. Ann Rheum Dis. 2019 May 21.
An integrated analysis to determine the contribution of joint and skin improvements to health-related quality of life (HRQoL) in patients with psoriatic arthritis (PsA). Optimal improvements in patients' HRQoL were dependent on successful treatment of both joint and skin symptoms.
Content validity and psychometric evaluation of Functional Assessment of Chronic Illness Therapy-Fatigue in patients with psoriatic arthritis.
Cella D, Wilson H, Shalhoub H, et al. J Patient Rep Outcomes. 2019 May 20;3(1):30.
One-on-one semi-structured qualitative interviews with adult patients evaluated the measurement properties (e.g., content validity, reliability, and ability to detect change) of the Functional Assessment of Chronic Illness Therapy (FACIT)-Fatigue scale in patients with active psoriatic arthritis (PsA). Fatigue was confirmed to be an important symptom to patients with PsA, and FACIT-Fatigue was found to be a reliable and valid measure in this population.
Birth Outcomes and Disease Activity during Pregnancy in a Prospective Cohort of Women with Psoriatic Arthritis and Ankylosing Spondylitis.
Smith CJF, Bandoli G, Kavanaugh A, Chambers CD. Arthritis Care Res (Hoboken). 2019 May 10.
Women with PsA and AS have increased risk for selected adverse pregnancy outcomes. Compared to healthy controls (n=717), PsA (n = 117) was associated with increased risk for moderate preterm delivery (32-36 weeks' gestation), oligohydramnios, and Caesarean delivery. Active disease and corticosteroid use may increase the risk for some adverse pregnancy outcomes in women with these conditions.
Differential synovial tissue biomarkers among psoriatic arthritis and rheumatoid factor/anti-citrulline antibody-negative rheumatoid arthritis.
Alivernini S, Bruno D, Tolusso B, et al. Arthritis Res Ther. 2019 May 9;21(1):116.
The aim of the study was to identify synovial tissue (ST) biomarkers differentially expressed in PsA and seronegative rheumatoid arthritis and test their predictive value of therapeutic response. Histological analysis of ST may help to solve the clinical overlap between the two diseases and provides prognostic data about the therapy success.
Psoriatic arthritis - new perspectives.
Krakowski P, Gerkowicz A, Piertrzak A, et al. Arch Med Sci. 2019 May;15(3):580-589.
The management of PsA requires the care of a multidisciplinary team, which should include dermatologists, rheumatologists, physiotherapists, and orthopedic surgeons. PsA should be diagnosed as early as possible to slow down joint damage and progression of disability.