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VIDEO: Minimal disease activity criteria sought for axial spondyloarthritis

DENVER – U.S. rheumatologists plan to develop new criteria to define minimal disease activity in patients with axial spondyloarthritis to better gauge in routine clinical practice how well these patients respond to treatment.

A score on the Ankylosing Spondylitis Disease Activity Score (ASDAS) of less than 1.3 is the most commonly used measure today of minimal disease activity, but the ASDAS isn’t suitable for point-of-care assessment in routine practice because of the need for a C-reactive protein level or erythrocyte sedimentation rate.

Mitchel L. Zoler/Frontline Medical News
Dr. Lianne S. Gensler and Dr. Atul Deodhar

“In the clinic, ASDAS is very difficult or next to impossible to do” because it needs CRP or ESR, which are “never available at the point of care,” Atul A. Deodhar, MD, said in an interview at the annual meeting of the Spondyloarthritis Research and Treatment Network (SPARTAN). Another limitation of ASDAS is that it focuses exclusively on musculoskeletal measures and does not take into account extra-articular manifestations of axial spondyloarthritis such as those in the eye, gastrointestinal tract, or skin.

“We would like a clinical measurement that might tell us that a patient is appropriately treated and at minimal disease activity,” said Dr. Deodhar, professor of medicine and medical director of the rheumatology clinics at Oregon Health & Science University in Portland.

As outgoing chair of SPARTAN, Dr. Deodhar introduced a proposal that SPARTAN develop new minimal disease activity criteria for patients with axial spondyloarthritis, presenting the rationale for this project at the meeting along with the incoming chair Lianne S. Gensler, MD.

“We want a way to measure disease activity at a stage that is not full remission but with enough of a reduction in disease activity to make a difference,” said Dr. Gensler, director of the Ankylosing Spondylitis Clinic at the University of California, San Francisco. Another frequently used gauge of minimal disease activity in axial spondyloarthritis, the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), is flawed by being totally based on subjective measurements without input from the attending rheumatologist, Dr. Gensler said.

The SPARTAN leadership will try to partner in this effort with the OMERACT (Outcome Measures in Rheumatology) program, the Assessment of Spondyloarthritis International Society (ASAS), or both, but if necessary SPARTAN will develop new minimal disease activity criteria on its own, Dr. Deodhar said.

Dr. Deodhar has received research support from 10 drug companies. Dr. Gensler has been a consultant to or has received research support from AbbVie, Amgen, Janssen, Novartis, and UCB.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

mzoler@frontlinemedcom.com

On Twitter @mitchelzoler

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DENVER – U.S. rheumatologists plan to develop new criteria to define minimal disease activity in patients with axial spondyloarthritis to better gauge in routine clinical practice how well these patients respond to treatment.

A score on the Ankylosing Spondylitis Disease Activity Score (ASDAS) of less than 1.3 is the most commonly used measure today of minimal disease activity, but the ASDAS isn’t suitable for point-of-care assessment in routine practice because of the need for a C-reactive protein level or erythrocyte sedimentation rate.

Mitchel L. Zoler/Frontline Medical News
Dr. Lianne S. Gensler and Dr. Atul Deodhar

“In the clinic, ASDAS is very difficult or next to impossible to do” because it needs CRP or ESR, which are “never available at the point of care,” Atul A. Deodhar, MD, said in an interview at the annual meeting of the Spondyloarthritis Research and Treatment Network (SPARTAN). Another limitation of ASDAS is that it focuses exclusively on musculoskeletal measures and does not take into account extra-articular manifestations of axial spondyloarthritis such as those in the eye, gastrointestinal tract, or skin.

“We would like a clinical measurement that might tell us that a patient is appropriately treated and at minimal disease activity,” said Dr. Deodhar, professor of medicine and medical director of the rheumatology clinics at Oregon Health & Science University in Portland.

As outgoing chair of SPARTAN, Dr. Deodhar introduced a proposal that SPARTAN develop new minimal disease activity criteria for patients with axial spondyloarthritis, presenting the rationale for this project at the meeting along with the incoming chair Lianne S. Gensler, MD.

“We want a way to measure disease activity at a stage that is not full remission but with enough of a reduction in disease activity to make a difference,” said Dr. Gensler, director of the Ankylosing Spondylitis Clinic at the University of California, San Francisco. Another frequently used gauge of minimal disease activity in axial spondyloarthritis, the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), is flawed by being totally based on subjective measurements without input from the attending rheumatologist, Dr. Gensler said.

The SPARTAN leadership will try to partner in this effort with the OMERACT (Outcome Measures in Rheumatology) program, the Assessment of Spondyloarthritis International Society (ASAS), or both, but if necessary SPARTAN will develop new minimal disease activity criteria on its own, Dr. Deodhar said.

Dr. Deodhar has received research support from 10 drug companies. Dr. Gensler has been a consultant to or has received research support from AbbVie, Amgen, Janssen, Novartis, and UCB.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

mzoler@frontlinemedcom.com

On Twitter @mitchelzoler

DENVER – U.S. rheumatologists plan to develop new criteria to define minimal disease activity in patients with axial spondyloarthritis to better gauge in routine clinical practice how well these patients respond to treatment.

A score on the Ankylosing Spondylitis Disease Activity Score (ASDAS) of less than 1.3 is the most commonly used measure today of minimal disease activity, but the ASDAS isn’t suitable for point-of-care assessment in routine practice because of the need for a C-reactive protein level or erythrocyte sedimentation rate.

Mitchel L. Zoler/Frontline Medical News
Dr. Lianne S. Gensler and Dr. Atul Deodhar

“In the clinic, ASDAS is very difficult or next to impossible to do” because it needs CRP or ESR, which are “never available at the point of care,” Atul A. Deodhar, MD, said in an interview at the annual meeting of the Spondyloarthritis Research and Treatment Network (SPARTAN). Another limitation of ASDAS is that it focuses exclusively on musculoskeletal measures and does not take into account extra-articular manifestations of axial spondyloarthritis such as those in the eye, gastrointestinal tract, or skin.

“We would like a clinical measurement that might tell us that a patient is appropriately treated and at minimal disease activity,” said Dr. Deodhar, professor of medicine and medical director of the rheumatology clinics at Oregon Health & Science University in Portland.

As outgoing chair of SPARTAN, Dr. Deodhar introduced a proposal that SPARTAN develop new minimal disease activity criteria for patients with axial spondyloarthritis, presenting the rationale for this project at the meeting along with the incoming chair Lianne S. Gensler, MD.

“We want a way to measure disease activity at a stage that is not full remission but with enough of a reduction in disease activity to make a difference,” said Dr. Gensler, director of the Ankylosing Spondylitis Clinic at the University of California, San Francisco. Another frequently used gauge of minimal disease activity in axial spondyloarthritis, the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), is flawed by being totally based on subjective measurements without input from the attending rheumatologist, Dr. Gensler said.

The SPARTAN leadership will try to partner in this effort with the OMERACT (Outcome Measures in Rheumatology) program, the Assessment of Spondyloarthritis International Society (ASAS), or both, but if necessary SPARTAN will develop new minimal disease activity criteria on its own, Dr. Deodhar said.

Dr. Deodhar has received research support from 10 drug companies. Dr. Gensler has been a consultant to or has received research support from AbbVie, Amgen, Janssen, Novartis, and UCB.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

mzoler@frontlinemedcom.com

On Twitter @mitchelzoler

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