PMID- 31421033 OWN - NLM STAT- MEDLINE DCOM- 20201209 LR - 20201215 IS - 2151-4658 (Electronic) IS - 2151-464X (Print) IS - 2151-464X (Linking) VI - 72 IP - 11 DP - 2020 Nov TI - Composite Measures of Disease Activity in Psoriatic Arthritis: Comparative Instrument Performance Based on the Efficacy of Guselkumab in an Interventional Phase II Trial. PG - 1579-1588 LID - 10.1002/acr.24046 [doi] AB - OBJECTIVE: To assess performance of psoriatic arthritis (PsA) composite indices and evaluate guselkumab's effect on achieving low disease activity or remission. METHODS: In this phase II trial, patients with active PsA (>/=3 tender and >/=3 swollen joints, C-reactive protein level >/=0.3 mg/dl, >/=3% body surface-area with psoriasis involvement) were randomized 2:1 to subcutaneous guselkumab 100 mg (n = 100) or placebo (n = 49) at week 0, week 4, and every 8 weeks through week 44. At week 16, patients with <5% improvement in swollen and tender joints could early escape to open-label ustekinumab. Patients continuing placebo crossed over to receive guselkumab 100 mg at weeks 24, 28, 36, and 44 (placebo to guselkumab). PsA composite indices (Psoriatic Arthritis Disease Activity Score [PASDAS], Group for Research and Assessment of Psoriasis and Psoriatic Arthritis composite score [GRACE], modified Composite Psoriatic Disease Activity Index [mCPDAI], and Disease Activity in Psoriatic Arthritis [DAPSA]) were analyzed as secondary outcomes (last observation carried forward for missing/post-early escape data through week 24; observed data post-week 24). Instrument performance was assessed. RESULTS: Baseline PASDAS, GRACE, mCPDAI, and DAPSA scores indicated moderate-to-high disease activity. At week 24, mean changes in each of these composite indices showed significant improvement with guselkumab (-2.50, -2.73, -3.8, and -23.08, respectively) versus placebo (-0.49, 0.35, -0.8, and -4.98, respectively; P < 0.001 for all). Significantly more guselkumab-treated patients achieved low/very low/remitted disease activity states according to PASDAS (very low + low 35% versus 4%; P < 0.001), GRACE (30% versus 2%; P < 0.001), mCPDAI (46% versus 10%; P < 0.001), and DAPSA (remission + low 40% versus 12%; P < 0.001). A total of 12% of guselkumab-treated versus no placebo-treated patients achieved DAPSA remission (P < 0.01). The PASDAS and GRACE instruments were more sensitive than the mCPDAI and DAPSA tools in detecting treatment effect. Residual skin disease and enthesitis were marginally more prominent in patients achieving DAPSA low disease activity versus other indices. CONCLUSION: Guselkumab demonstrated efficacy in achieving low disease activity/remission based on all PsA composite indices assessed. Composite index use in PsA trials and the clinic requires careful consideration to optimize feasibility and instrument performance. CI - (c) 2019, The Authors. Arthritis Care & Research published by Wiley Periodicals, Inc. on behalf of American College of Rheumatology. FAU - Helliwell, Philip S AU - Helliwell PS AUID- ORCID: 0000-0002-4155-9105 AD - University of Leeds, Leeds, UK. FAU - Deodhar, Atul AU - Deodhar A AD - Oregon Health and Science University, Portland. FAU - Gottlieb, Alice B AU - Gottlieb AB AD - Icahn School of Medicine at Mount Sinai, New York, New York. FAU - Boehncke, Wolf-Henning AU - Boehncke WH AD - Geneva University Hospitals and University of Geneva, Geneva, Switzerland. FAU - Xu, Xie L AU - Xu XL AD - Janssen Research & Development, LLC, San Diego, California. FAU - Xu, Stephen AU - Xu S AD - Janssen Research & Development, LLC, Spring House, Pennsylvania. FAU - Wang, Yuhua AU - Wang Y AD - Janssen Research & Development, LLC, Spring House, Pennsylvania. FAU - Hsia, Elizabeth C AU - Hsia EC AD - Janssen Research & Development, LLC, Spring House, and University of Pennsylvania Medical Center, Philadelphia, Pennsylvania. FAU - Gladman, Dafna D AU - Gladman DD AD - University of Toronto, Krembil Research Institute, and Toronto Western Hospital, Toronto, Ontario, Canada. FAU - Ritchlin, Christopher T AU - Ritchlin CT AD - University of Rochester Medical Center, Rochester, New York. LA - eng SI - ClinicalTrials.gov/NCT02319759 PT - Clinical Trial, Phase II PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - Arthritis Care Res (Hoboken) JT - Arthritis care & research JID - 101518086 RN - 0 (Antibodies, Monoclonal, Humanized) RN - 089658A12D (guselkumab) SB - IM MH - Adult MH - Antibodies, Monoclonal, Humanized/*administration & dosage MH - Arthritis, Psoriatic/*drug therapy MH - Disability Evaluation MH - Female MH - Humans MH - Induction Chemotherapy/*methods MH - Male MH - Middle Aged MH - *Patient Reported Outcome Measures MH - *Severity of Illness Index MH - Treatment Outcome PMC - PMC7702129 EDAT- 2019/08/20 06:00 MHDA- 2020/12/15 06:00 PMCR- 2020/11/30 CRDT- 2019/08/18 06:00 PHST- 2019/02/20 00:00 [received] PHST- 2019/08/13 00:00 [accepted] PHST- 2019/08/20 06:00 [pubmed] PHST- 2020/12/15 06:00 [medline] PHST- 2019/08/18 06:00 [entrez] PHST- 2020/11/30 00:00 [pmc-release] AID - ACR24046 [pii] AID - 10.1002/acr.24046 [doi] PST - ppublish SO - Arthritis Care Res (Hoboken). 2020 Nov;72(11):1579-1588. doi: 10.1002/acr.24046.