A102 TOLERABILITY OF USTEKINUMAB IN INDUCTION AND MAINTENANCE FOR THE TREATMENT OF CROHN’S DISEASE

Tolerance to therapy is critical for pts to receive the maximal treatment benefit. In Phase 3 clinical trials for ustekinumab (UST) for moderate to severe Crohn’s disease (CD), UNITI-1 enrolled anti-TNF failures and UNITI-2 enrolled conventional therapy failures. In UNITI-1, 36.4% had previous intolerance (infusion-related reactions [IRR], delayed hypersensitivity reactions, or injection site reactions [ISR]) that led to discontinuation of the anti-TNF. UNITI-2 enrolled pts that were not intolerant to anti-TNFs, but some were intolerant to immunomodulators (39%) or corticosteroids (15%). Here we assess tolerability as measured by IRR, delayed hypersensitivity, or ISR to UST in the Phase 3 CD trials. All enrolled pts in UNITI-1 and UNITI-2 were given an intravenous (IV) induction infusion of UST 130mg, UST ~6 mg/kg, or placebo (PBO). The IM-UNITI maintenance study began 8 weeks after IV induction; UST IV responders were randomized to UST 90mg SC Q8W, UST 90mg SC Q12W, or PBO. Non-randomized patients, included non-responders to placebo who received 130mg IV UST, then continued to UST 90mg SC Q12W maintenance therapy; non-responders to IV UST who received UST 90 mg SC, then continued UST 90 mg SC Q8W in maintenance; and IV placebo responders who received placebo SC in maintenance. Overall, IRR were infrequent: 4.0 % and 1.9 % of all pts in UNITI 1 & 2, respectively, experienced infusion reactions to the single IV dose. There were no differences in IRR between PBO & UST, or between UST doses (UNITI 1 IRRs in 2.0%, PBO and 4.5% UST 130mg and 3.6%, UST ~6 mg/kg; UNITI 2 IRRs in 2.9%, PBO and 2.4% UST 130mg and 1.4%, UST ~6 mg/kg). During IM-UNITI, in non-randomized pts who were non-responders to placebo induction and received a 130mg IV injection, IRR to PBO and UST were similar and infrequent (2.5% and 1.8%, respectively). There were no anaphylactic or delayed hypersensitivity reactions to any IV dose. After SC administration, ISRs were infrequent and not different across groups. In the combined (randomized and non- randomized) population, ISRs were 1.7 % with PBO, and 3.0% with UST. No serious ISRs were reported. The most common ISR was erythema, reported in 1.1 % of PBO, and 1.7% of UST. There were no anaphylactic or delayed hypersensitivity reactions to any SC dose. Amongst randomized pts, ISRs were infrequent and consistent between groups. ISRs occurred in 3/418 (0.7 %) of all UST 90mg Q12W injections and in 12/599 (2.0 %) of all UST 90mg Q8W injections. One pt in the entire phase 3 program discontinued therapy due to ISR. In a broad population of pts with Crohn’s disease, many of whom were intolerant to previous therapies, UST had a tolerable profile. Rates of IRR and ISR were minimal, and were not different between groups, nor populations. Janssen Research & Development, LLC funded this study

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