PMID- 27748083 OWN - NLM STAT- MEDLINE DCOM- 20170718 LR - 20180119 IS - 2326-5205 (Electronic) IS - 2326-5191 (Linking) VI - 69 IP - 4 DP - 2017 Apr TI - Peficitinib, a JAK Inhibitor, in the Treatment of Moderate-to-Severe Rheumatoid Arthritis in Patients With an Inadequate Response to Methotrexate. PG - 709-719 LID - 10.1002/art.39955 [doi] AB - OBJECTIVE: To evaluate the efficacy and safety of orally administered once-daily peficitinib in combination with methotrexate (MTX) in patients with moderate-to-severe rheumatoid arthritis (RA) who had an inadequate response to MTX. METHODS: In this multinational, phase IIb, randomized, double-blind, placebo-controlled, dose-ranging trial, patients with RA (n = 378) were treated with peficitinib 25 mg, 50 mg, 100 mg, or 150 mg plus MTX, or matching placebo plus MTX once daily for 12 weeks. The primary end point was the percentage of patients who met the American College of Rheumatology 20% improvement criteria (achieved an ACR20 response) at week 12. RESULTS: ACR20 response rates at week 12 were 43.9%, 61.5% (P < 0.05 versus placebo), 46.4%, 57.7%, and 44.4% in the peficitinib 25 mg, 50 mg, 100 mg, 150 mg, and placebo groups, respectively. Significant decreases from baseline in the Disease Activity Score in 28 joints using the C-reactive protein level were seen in the peficitinib 50 mg (P < 0.05) and 150 mg (P < 0.01) groups compared with placebo at week 12. Overall, the incidence of adverse events (AEs) was similar between peficitinib and placebo. The most common AEs were urinary tract infection (n = 22 [6%]), upper respiratory tract infection (n = 16 [4%]), and diarrhea (n = 16 [4%]). There were 3 cases of herpes zoster infection (2 in the peficitinib 100 mg group and 1 in the 150 mg group) and 2 cases of serious infection (viral infection in the peficitinib 100 mg group and erysipelas in the 150 mg group). CONCLUSION: The ACR20 response rate in the group receiving peficitinib 50 mg plus MTX was significantly different compared with the rate in patients receiving placebo, but there were no apparent dose-dependent responses, and the placebo response rate was high. Peficitinib plus MTX in patients with moderate-to-severe RA was well tolerated, with limited safety signals emerging. CI - (c) 2016, American College of Rheumatology. FAU - Kivitz, A J AU - Kivitz AJ AD - Altoona Center for Clinical Research, Duncansville, Pennsylvania. FAU - Gutierrez-Urena, S R AU - Gutierrez-Urena SR AD - Hospital Civil de Guadalajara, Guadalajara, Mexico. FAU - Poiley, J AU - Poiley J AD - Arthritis Associates, Orlando, Florida. FAU - Genovese, M C AU - Genovese MC AD - Stanford University, Palo Alto, California. FAU - Kristy, R AU - Kristy R AD - Astellas Pharma Global Development, Northbrook, Illinois. FAU - Shay, K AU - Shay K AD - Astellas Pharma Global Development, Northbrook, Illinois. FAU - Wang, X AU - Wang X AD - Astellas Pharma Global Development, Northbrook, Illinois. FAU - Garg, J P AU - Garg JP AD - Astellas Pharma Global Development, Northbrook, Illinois. FAU - Zubrzycka-Sienkiewicz, A AU - Zubrzycka-Sienkiewicz A AD - ARS Rheumatica, Warsaw, Poland. LA - eng SI - ClinicalTrials.gov/NCT01554696 PT - Clinical Trial, Phase II PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - Arthritis Rheumatol JT - Arthritis & rheumatology (Hoboken, N.J.) JID - 101623795 RN - 0 (Antirheumatic Agents) RN - 25X51I8RD4 (Niacinamide) RN - EC 2.7.10.2 (Janus Kinases) RN - HPH1166CKX (peficitinib) RN - PJY633525U (Adamantane) RN - YL5FZ2Y5U1 (Methotrexate) SB - IM MH - Adamantane/*analogs & derivatives/therapeutic use MH - Antirheumatic Agents/*therapeutic use MH - Arthritis, Rheumatoid/*drug therapy MH - Double-Blind Method MH - Female MH - Humans MH - Janus Kinases/*antagonists & inhibitors MH - Male MH - Methotrexate/*therapeutic use MH - Middle Aged MH - Niacinamide/*analogs & derivatives/therapeutic use MH - Severity of Illness Index MH - Treatment Outcome EDAT- 2016/10/18 06:00 MHDA- 2017/07/19 06:00 CRDT- 2016/10/18 06:00 PHST- 2016/04/22 00:00 [received] PHST- 2016/10/06 00:00 [accepted] PHST- 2016/10/18 06:00 [pubmed] PHST- 2017/07/19 06:00 [medline] PHST- 2016/10/18 06:00 [entrez] AID - 10.1002/art.39955 [doi] PST - ppublish SO - Arthritis Rheumatol. 2017 Apr;69(4):709-719. doi: 10.1002/art.39955.