Psoriatic arthritis (PsA) is a chronic, immune-mediated inflammatory arthritis that occurs most commonly in some people with psoriasis, a skin condition characterized by red, scaly patches. Research suggests that approximately 20-30% of people with psoriasis also develop PsA, with the majority of patient’s presenting with skin-related disease that precedes the onset of arthritis symptomatology, though for ~15% skin and arthritic manifestations coincide in onset, and ~15% experiencing arthritic symptoms that occur before skin manifestations are present.

Today, we are going to look at two notable sets of guidelines for managing PsA published by GRAPPA (Group for Research and Assessment of Psoriasis and Psoriatic Arthritis) and ACR/NPF (American College of Rheumatology/National Psoriasis Foundation) for a side-by-side comparison of guideline developmental approach, scope, and treatment recommendations.

It is worth mentioning that the GRAPPA Guidelines have a global perspective and are relevant in healthcare settings worldwide while the ACR/NPF guidelines are tailored to the US healthcare system and may include considerations specific to the American healthcare system.

ApproachGRAPPAACR/NPF
Publication DateJune 27, 2022November 30, 2018
MethodologyGRADEGRADE
Grades Strength of RecommendationYesYes
Graded Level of EvidenceNoYes
Based on Systematic ReviewYesYes
Multidisciplinary PanelYesYes
Methodologist InvolvementYesYes
Patient Representative(s)YesYes
Literature Search ThroughNovember 2020March 2018

Scope and Content:

  • The guidelines provided by GRAPPA encompass a wide array of topics pertaining to the diagnosis, evaluation, and treatment of Psoriatic Arthritis (PsA). These guidelines include recommendations for both pharmacologic and non-pharmacologic interventions, as well as guidance on monitoring disease activity and addressing comorbidities.
  • In contrast, the guidelines established by the ACR/NPF focus specifically on the pharmacologic management of PsA. These guidelines offer recommendations for the utilization of disease-modifying antirheumatic drugs (DMARDs), biologic therapies, and targeted synthetic DMARDs.

Pharmacological Differences and Similarities Between the Guidelines:

MedicationsGRAPPAACR/NPF
TNFiStrongly Recommended For:
Peripheral PsA, DMARD Naive
Peripheral PsA, DMARD Inadequate Response
Peripheral PsA, bDMARD experienced
Axial disease, bDMARD naive
Enthesitis
Dactylitis
Plaque Psoriasis
Nail Psoriasis
IBD (not ETN)

Conditionally Recommended for:
Uveitis
Recommended For:
Active PsA Who Are OSM-and Other Treatment-Naïve
Active PsA Despite Treatment With an OSM
Active PsA Despite Treatment With a TNFi Biologic, as Monotherapy or in Combination with MTX
Active PsA Despite Treatment With an IL-17i or an IL-12/23i Biologic Monotherapy
Active PsA with psoriatic spondylitis/axial disease despite treatment with NSAIDs
Active PsA and predominant enthesitis who are both OSM- and biologic treatment–naive
Active PsA and predominant enthesitis despite treatment with OSM
Active PsA and concomitant active IBD who are both OSM- and biologic treatment–naive
Active PsA and concomitant active IBD despite treatment with an OSM
IL-17iStrongly Recommended For:
Peripheral PsA, DMARD Naive
Peripheral PsA, DMARD Inadequate Response
Peripheral PsA, bDMARD experienced
Axial disease, bDMARD naive
Enthesitis
Dactylitis
Plaque Psoriasis
Nail Psoriasis

Conditionally Recommended for:
IBD
Recommended For:
Active PsA Who Are OSM-and Other Treatment-Naïve
Active PsA Despite Treatment With an OSM
Active PsA Despite Treatment With a TNFi Biologic, as Monotherapy or in Combination with MTX
Active PsA Despite Treatment With an IL-12/23i Biologic Monotherapy
Active PsA with psoriatic spondylitis/axial disease despite treatment with NSAIDs
Active PsA and predominant enthesitis despite treatment with OSM
IL-23iStrongly Recommended For:
Peripheral PsA, DMARD Naive
Peripheral PsA, DMARD Inadequate Response
Peripheral PsA, bDMARD experienced
Enthesitis
Dactylitis
Plaque Psoriasis
Nail Psoriasis

Conditionally Recommended for:
IBD
No addressed individually, separate from IL 12/23i
IL-12/23iStrongly Recommended For:
Peripheral PsA, DMARD Naive
Peripheral PsA, DMARD Inadequate Response
Enthesitis
Dactylitis
Plaque Psoriasis
Nail Psoriasis
IBD

Conditionally Recommended for:
Peripheral PsA, bDMARD experienced
IBD
Recommended For:
Active PsA Despite Treatment With an OSM
Active PsA Despite Treatment With a TNFi Biologic, as Monotherapy or in Combination with MTX
Active PsA Despite Treatment With an IL-17i Biologic Monotherapy
Active PsA and predominant enthesitis despite treatment with OSM
Active PsA and concomitant active IBD despite treatment with an OSM
JAKiStrongly Recommended For:
Peripheral PsA, DMARD Naive
Peripheral PsA, DMARD Inadequate Response
Peripheral PsA, bDMARD experienced
Enthesitis
Dactylitis
Plaque Psoriasis

Conditionally Recommended for:
Nail Psoriasis
IBD
Recommended For:
Active PsA and predominant enthesitis who are both OSM- and biologic treatment–naive

Treatment Sequencing and Switching:

  • Both sets of guidelines offer recommendations for the sequencing of treatments and strategies for switching based on factors such as treatment response, disease activity, and patient preferences. The goal of these recommendations is to enhance disease control and reduce the occurrence of treatment-related adverse events.

Individualized Treatment Approach:

  • Both the GRAPPA and ACR/NPF guidelines stress the significance of tailoring treatment to the individual, considering factors like disease severity, comorbidities, patient preferences, and treatment objectives when choosing and overseeing medications for PsA. Although there may be variations in the medication recommendations outlined in the GRAPPA and ACR/NPF guidelines for PsA, both sets of guidelines offer evidence-based direction to assist healthcare professionals in enhancing the management of this intricate condition and enhancing patient outcomes.

This concludes our Guidelines Side by Side for Psoriatic Arthritis published by GRAPPA and the ACR/NPF. We’ll see you next time for our next side-by-side guideline comparison! If there are any specific guidelines or topics you’re interested in seeing in this series feel free to reach out and don’t forget to sign up for alerts to stay informed on the latest published guidelines and articles.


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