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OP36 Risankizumab therapy induces improvements in endoscopic endpoints in patients with Moderate-to-Severe Crohn’s Disease: Results from the phase 3 ADVANCE and MOTIVATE studies

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Endoscopic healing has become a critical treatment target in Crohn’s disease (CD). Risankizumab (RZB), a humanized immunoglobulin G1 monoclonal antibody against the p19 subunit of interleukin 23, is being investigated… Click to show full abstract

Endoscopic healing has become a critical treatment target in Crohn’s disease (CD). Risankizumab (RZB), a humanized immunoglobulin G1 monoclonal antibody against the p19 subunit of interleukin 23, is being investigated as a treatment for moderate-to-severe CD. This analysis assessed different endoscopic endpoints in patients treated with RZB induction therapy in two double-blind, randomised, placebo (PBO)-controlled studies (ADVANCE [NCT03104413] and MOTIVATE [NCT03105128]). Patients with moderate-to-severe CD (CD Activity Index [CDAI] of 220–450, Simple Endoscopic Score for CD [SES-CD] ≥ 6 [≥ 4 for isolated ileal disease] excluding the narrowing component, and average daily [liquid/very soft] stool frequency [SF] ≥ 4 and/or average daily abdominal pain [AP] score ≥ 2) who had demonstrated prior inadequate response or intolerance to conventional and/or biologic treatment (ADVANCE) or to biologic treatment (MOTIVATE) were randomised 2:2:1 (ADVANCE) or 1:1:1 (MOTIVATE) to receive intravenous (IV) RZB 600 mg, RZB 1200 mg, or PBO at weeks 0, 4, and 8. This analysis evaluated the proportion of patients who achieved endoscopic remission ulcer-free endoscopy (ie, absence of ulcers), and composite endpoints of CDAI clinical response and endoscopic response, and enhanced clinical response and endoscopic response at week 12 (endpoints defined in Figure 1 footnotes). All endoscopies were centrally read by a blinded reviewer. Safety was assessed throughout the studies. In ADVANCE and MOTIVATE, 850 and 569 patients, respectively, were randomised and included in the intent-to-treat population for this analysis. At week 12 greater proportions of RZB- vs PBO-treated patients in both studies achieved endoscopic remission (P ≤ .001), ulcer-free endoscopy (P ≤ .01), CDAI clinical response and endoscopic response (P ≤ .001), and enhanced clinical response and endoscopic response (P ≤ .001; Figure 1). Treatment with RZB 600 mg or 1200 mg was well tolerated, and no new safety risks were identified.1,2 Induction therapy with IV RZB 600 mg or 1200 mg resulted in improved outcomes at week 12 compared with PBO as assessed by endoscopy and by composite endoscopic-clinical endpoints in patients with moderate-to-severe CD.

Keywords: response; endoscopic; moderate severe; motivate; endpoints patients; patients moderate

Journal Title: Journal of Crohn's and Colitis
Year Published: 2021

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