OP37 Efficacy and safety of ustekinumab as maintenance therapy in ulcerative colitis: Week 44 results from UNIFI
W. J. Sandborn*1, B. E. Sands2, R. Panaccione3, C. D. O’Brien4, H. Zhang4, J. Johanns4, L. Peyrin-Biroulet5, G. Van Assche6, S. Danese7, S. R. Targan8, M. T. Abreu9, T. Hisamatsu10, P. Szapary4, C. Marano4
1University of California San Diego, La Jolla, USA, 2Icahn School of Medicine at Mount Sinai, New York, USA, 3University of Calgary, Calgary, Canada, 4Janssen Research and Development, LLC, Spring House, USA, 5Nancy University Hospital, Université de Lorraine, Nancy, France, 6University of Leuven, Leuven, Belgium, 7Humanitas Research Hospital, Milan, Italy, 8Cedars-Sinai Medical Center, Los Angeles, USA, 9University of Miami Miller School of Medicine, Miami, USA, 10Kyorin University, Tokyo, Japan
The study objective was to evaluate the safety and efficacy of SC ustekinumab (UST) as maintenance therapy in UC patients who were in clinical response to a single IV induction dose of UST.
This was a Ph3, double-blind, randomised withdrawal study in patients with moderate–severe active UC who failed conventional or biologic therapy (including anti-TNF and/or vedolizumab) and were in clinical response 8 weeks after receiving a single UST IV induction dose. The primary study population included 523 patients randomised 1:1:1 to placebo (PBO) SC, UST 90 mg SC q8w or q12w at Week 0. Primary endpoint was clinical remission at Week 44 (52 weeks after IV induction); key secondary endpoints were maintenance of clinical response, endoscopic healing, corticosteroid-free clinical remission, and maintenance of clinical remission among patients who achieved clinical remission at baseline.
Baseline (induction Week 0) demographics, UC disease characteristics, concomitant UC medications, and medication history were generally similar among treatment groups. Significantly greater proportions of UST q8w and q12w patients were in clinical remission at Week 44 (43.8% and 38.4%, respectively) vs. PBO patients (24.0%;
Abstract OP037 – Table 1. Primary and key secondary endpoints.
The proportions of patients with AEs, serious AEs, infections, and serious infections in the UST groups were generally comparable to PBO group. The proportions of patients who discontinued study agent were lower with UST q8w and q12w vs. PBO. Among the primary population in the maintenance study: no deaths, 2 malignancies other than NMSC (1 colon cancer,q8w; 1 papillary renal cell carcinoma, q12w) were reported. One patient-reported NMSC (2 SCC events, q12w).
Abstract OP037 – Table 2. Summary of key safety findings through Week 44.
Both UST 90 mg q8w and q12w SC achieved clinical remission and maintained clinical response and were effective in achieving endoscopic healing and corticosteroid-free remission among patients with moderate–severe UC induced into clinical response with single IV dose of UST. The safety for UST in UC patients was consistent with the known safety profile of UST in CD.