Elhai M, Boubaya M, Distler O, Smith V, Matucci-Cerinic M, Alegre Sancho JJ, Truchetet ME, Braun-Moscovici Y, Iannone F, Novikov PI, Lescoat A, Siegert E, Castellví I, Airó P, Vettori S, De Langhe E, Hachulla E, Erler A, Ananieva L, Krusche M, López-Longo FJ, Distler JHW, Hunzelmann N, Hoffmann-Vold AM, Riccieri V, Hsu VM, Pozzi MR, Ancuta C, Rosato E, Mihai C, Kuwana M, Saketkoo LA, Chizzolini C, Hesselstrand R, Ullman S, Yavuz S, Rednic S, Caimmi C, Bloch-Queyrat C, and Allanore Y
Objective: To assess the safety and efficacy of rituximab in systemic sclerosis (SSc) in clinical practice., Methods: We performed a prospective study including patients with SSc from the European Scleroderma Trials and Research (EUSTAR) network treated with rituximab and matched with untreated patients with SSc. The main outcomes measures were adverse events, skin fibrosis improvement, lung fibrosis worsening and steroids use among propensity score-matched patients treated or not with rituximab., Results: 254 patients were treated with rituximab, in 58% for lung and in 32% for skin involvement. After a median follow-up of 2 years, about 70% of the patients had no side effect. Comparison of treated patients with 9575 propensity-score matched patients showed that patients treated with rituximab were more likely to have skin fibrosis improvement (22.7 vs 14.03 events per 100 person-years; OR: 2.79 [1.47-5.32]; p=0.002). Treated patients did not have significantly different rates of decrease in forced vital capacity (FVC)>10% (OR: 1.03 [0.55-1.94]; p=0.93) nor in carbon monoxide diffusing capacity (DLCO) decrease. Patients having received rituximab were more prone to stop or decrease steroids (OR: 2.34 [1.56-3.53], p<0.0001). Patients treated concomitantly with mycophenolate mofetil had a trend for better outcomes as compared with patients receiving rituximab alone (delta FVC: 5.22 [0.83-9.62]; p=0.019 as compared with controls vs 3 [0.66-5.35]; p=0.012)., Conclusion: Rituximab use was associated with a good safety profile in this large SSc-cohort. Significant change was observed on skin fibrosis, but not on lung. However, the limitation is the observational design. The potential stabilisation of lung fibrosis by rituximab has to be addressed by a randomised trial., Competing Interests: Competing interests: OD has consultancy relationship with Actelion, Bayer, BiogenIdec, Boehringer Ingelheim, ChemomAb, espeRare foundation, Genentech/Roche, GSK, Inventiva, Italfarmaco, Lilly, medac, MedImmune, Mitsubishi Tanabe Pharma, Pharmacyclics, Novartis, Pfizer, Sanofi, Sinoxa and UCB in the area of potential treatments of scleroderma and its complications. OD has received research funding from Actelion, Bayer, Boehringer Ingelheim, Mitsubishi Tanabe Pharma and Roche in the area of potential treatments of scleroderma and its complications. In addition, OD has a patent mir-29 for the treatment of systemic sclerosis licensed. M-ET has received consulting fees, speaking fees or honoraria from Abbvie, BMS, Lilly, Medac, MSD, Pfizer, Roche and UCB. PA has received travel expenses from Roche (<2500€). SV received speaking fees by Pfizer, Abbvie, Bristol-Myers Squibb, consultant fee from Thermofischer and Boehringer-Ingelheim Italia and Educational support from Pfizer, Roche, BMS. EH has received speaker fees and/or honoraria for consultations from Roche, less than 10 000€. NH received lecture fees from Actelion Pharmaceuticals, Pfizer, Roche and grant support from Actelion and Bayer Pharmaceuticals. CM has/had consultancy relationship and/or has received honoraria from Actelion, Abbvie, Roche and Geneva Romfarm in the area of systemic sclerosis and its complications. CC has received travel grants from Roche. YA has/had consultancy relationship and/or has received grants from Actelion, Bayer, BMS, Boehringer-Ingelheim, Inventiva, Roche, Sanofi-Aventis in the area of systemic sclerosis., (© Author(s) (or their employer(s)) 2019. No commercial re-use. See rights and permissions. Published by BMJ.)