PMID- 23400715 OWN - NLM STAT- MEDLINE DCOM- 20130522 LR - 20220317 IS - 1529-0131 (Electronic) IS - 0004-3591 (Print) IS - 0004-3591 (Linking) VI - 65 IP - 4 DP - 2013 Apr TI - Sifalimumab, a human anti-interferon-alpha monoclonal antibody, in systemic lupus erythematosus: a phase I randomized, controlled, dose-escalation study. PG - 1011-21 LID - 10.1002/art.37824 [doi] AB - OBJECTIVE: To evaluate the safety and tolerability of multiple intravenous (IV) doses of sifalimumab in adults with moderate-to-severe systemic lupus erythematosus (SLE). METHODS: In this multicenter, double-blind, placebo-controlled, sequential dose-escalation study, patients were randomized 3:1 to receive IV sifalimumab (0.3, 1.0, 3.0, or 10.0 mg/kg) or placebo every 2 weeks to week 26, then followed up for 24 weeks. Safety assessment included recording of treatment-emergent adverse events (AEs) and serious AEs. Pharmacokinetics, immunogenicity, and pharmacodynamics were evaluated, and disease activity was assessed. RESULTS: Of 161 patients, 121 received sifalimumab (26 received 0.3 mg/kg; 25, 1.0 mg/kg; 27, 3.0 mg/kg; and 43, 10 mg/kg) and 40 received placebo. Patients were predominantly female (95.7%). At baseline, patients had moderate-to-severe disease activity (mean SLE Disease Activity Index score 11.0), and most (75.2%) had a high type I interferon (IFN) gene signature. In the sifalimumab group versus the placebo group, the incidence of >/=1 treatment-emergent AE was 92.6% versus 95.0%, >/=1 serious AE was 22.3% versus 27.5%, and >/=1 infection was 67.8% versus 62.5%; discontinuations due to AEs occurred in 9.1% versus 7.5%, and death occurred in 3.3% (n=4) versus 2.5% (n=1). Serum sifalimumab concentrations increased in a linear and dose-proportional manner. Inhibition of the type I IFN gene signature was sustained during treatment in patients with a high baseline signature. No statistically significant differences in clinical activity (SLEDAI and British Isles Lupus Assessment Group score) between sifalimumab and placebo were observed. However, when adjusted for excess burst steroids, SLEDAI change from baseline showed a positive trend over time. A trend toward normal complement C3 or C4 level at week 26 was seen in the sifalimumab groups compared with baseline. CONCLUSION: The observed safety/tolerability and clinical activity profile of sifalimumab support its continued clinical development for SLE. CI - Copyright (c) 2013 by the American College of Rheumatology. FAU - Petri, Michelle AU - Petri M AD - Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA. mpetri@jhmi.edu FAU - Wallace, Daniel J AU - Wallace DJ FAU - Spindler, Alberto AU - Spindler A FAU - Chindalore, Vishala AU - Chindalore V FAU - Kalunian, Kenneth AU - Kalunian K FAU - Mysler, Eduardo AU - Mysler E FAU - Neuwelt, C Michael AU - Neuwelt CM FAU - Robbie, Gabriel AU - Robbie G FAU - White, Wendy I AU - White WI FAU - Higgs, Brandon W AU - Higgs BW FAU - Yao, Yihong AU - Yao Y FAU - Wang, Liangwei AU - Wang L FAU - Ethgen, Dominique AU - Ethgen D FAU - Greth, Warren AU - Greth W LA - eng SI - ClinicalTrials.gov/NCT00482989 PT - Clinical Trial, Phase I PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - Arthritis Rheum JT - Arthritis and rheumatism JID - 0370605 RN - 0 (Antibodies, Monoclonal) RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (Immunologic Factors) RN - 0 (Interferon-alpha) RN - XOY1YA7RMC (sifalimumab) SB - IM CIN - Z Rheumatol. 2013 Oct;72(8):827-9. PMID: 24043298 MH - Adult MH - Antibodies, Monoclonal/*administration & dosage/adverse effects/pharmacokinetics MH - Antibodies, Monoclonal, Humanized MH - Dose-Response Relationship, Drug MH - Female MH - Humans MH - Immunologic Factors/*administration & dosage/adverse effects/pharmacokinetics MH - Interferon-alpha/antagonists & inhibitors MH - Lupus Erythematosus, Systemic/*drug therapy/metabolism MH - Male MH - Middle Aged MH - Severity of Illness Index MH - Treatment Outcome PMC - PMC3654174 EDAT- 2013/02/13 06:00 MHDA- 2013/05/23 06:00 CRDT- 2013/02/13 06:00 PHST- 2012/03/09 00:00 [received] PHST- 2012/12/04 00:00 [accepted] PHST- 2013/02/13 06:00 [entrez] PHST- 2013/02/13 06:00 [pubmed] PHST- 2013/05/23 06:00 [medline] AID - 10.1002/art.37824 [doi] PST - ppublish SO - Arthritis Rheum. 2013 Apr;65(4):1011-21. doi: 10.1002/art.37824.