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Randomised clinical trial: a placebo-controlled study of intravenous golimumab induction therapy for ulcerative colitis.

ABSTRACT: Tumour necrosis factor alpha (TNF?)-antagonism effectively treats ulcerative colitis (UC). The golimumab clinical programme evaluated subcutaneous (SC) and intravenous (IV) induction, and SC maintenance regimens, in TNF?-antagonist-naïve patients with moderate-to-severe active UC despite conventional treatment.To evaluate dose-response relationship, select IV golimumab induction doses for continued development, and evaluate the safety and efficacy of selected doses.Adults with Mayo scores of 6-12 and endoscopic subscores ?2 were enrolled into this multicentre, randomised, double-blind, placebo-controlled, integrated Phase 2/3 dose-finding/dose-confirming study. In Phase 2, 176 patients were randomised (1:1:1:1) to a single IV infusion of placebo, 1-, 2- or 4-mg/kg golimumab. While Phase 2 data were analysed to select doses for continued development, 71 additional patients were randomised. Phase 3 enrolment stopped after 44 additional patients were randomised (1:1:1) to placebo, 2- or 4-mg/kg golimumab. Due to insufficient power for the Phase 3 primary endpoint analysis (clinical response at week 6), efficacy analyses are considered exploratory and include all randomised patients.No dose-response was observed in Phase 2; however, higher serum golimumab exposure was associated with greater proportions of patients achieving more favourable clinical outcomes, clinical response and greater improvement in Mayo scores compared with placebo-treated patients and those with lower serum concentrations. Among all randomised patients, numerically greater proportions were in clinical response at week 6 in the 2- and 4-mg/kg golimumab groups compared with placebo [44.0% (33/75) and 41.6% (32/77) vs. 30.1% (22/73)].Efficacy with single-dose golimumab IV induction was lower than expected and less than observed in the SC induction study. No new safety findings were observed. ClinicalTrials.gov Number, NCT00488774.

SUBMITTER: Rutgeerts P

PROVIDER: S-EPMC4755132 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature

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Randomised clinical trial: a placebo-controlled study of intravenous golimumab induction therapy for ulcerative colitis.

Rutgeerts P P Feagan B G BG Marano C W CW Padgett L L Strauss R R Johanns J J Adedokun O J OJ Guzzo C C Zhang H H Colombel J-F JF Reinisch W W Gibson P R PR Sandborn W J WJ

Alimentary pharmacology & therapeutics 20150629 5

<h4>Background</h4>Tumour necrosis factor alpha (TNFα)-antagonism effectively treats ulcerative colitis (UC). The golimumab clinical programme evaluated subcutaneous (SC) and intravenous (IV) induction, and SC maintenance regimens, in TNFα-antagonist-naïve patients with moderate-to-severe active UC despite conventional treatment.<h4>Aim</h4>To evaluate dose-response relationship, select IV golimumab induction doses for continued development, and evaluate the safety and efficacy of selected doses ...[more]

PMID: 26119226

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Project description:ObjectiveTumour necrosis factor signalling via the receptor-interacting protein kinase 1 (RIPK1) pathway regulates colonic inflammation suggesting that RIPK1 inhibition may be a potential therapeutic target in ulcerative colitis (UC). This phase IIa, randomised, double-blind experimental medicine study investigated the safety, pharmacokinetics (PK), pharmacodynamics (PD) and preliminary efficacy of the RIPK1 inhibitor GSK2982772 in patients with active UC.DesignIn part A, prior to a protocol amendment, one patient was randomised to receive GSK2982772 60 mg twice daily for 42 days. After the amendment, patients were randomised 2:1 to receive GSK2982772 60 mg or placebo three times daily for 42 days. In part B, all patients switched to open-label GSK2982772 60 mg three times daily for 42 days. Safety, PK, PD biomarkers, histological disease activity, clinical efficacy and quality of life were assessed at days 43 and 85.ResultsThirty-six patients were randomised (n=12, placebo/open-label GSK2982772; n=24, GSK2982772/open-label GSK2982772). Most adverse events were mild, with headache reported the most frequently across groups (placebo/open-label GSK2982772, n=2 (17%); GSK2982772/open-label GSK2982772, n=8 (33%)). GSK2982772 was well distributed into colonic tissue, with generally higher concentrations in colonic biopsy samples versus plasma. No apparent differences between treatment groups were observed for PD, histological disease activity, clinical disease activity or quality-of-life measures. At screening, all patients had Mayo endoscopic scores of 2 or 3. At day 43, no patients in the placebo/open-label GSK2982772 group achieved Mayo endoscopic scores of 0 or 1 vs 3/24 (13%) for GSK2982772/open-label GSK2982772. At day 85, 1/9 (11%) achieved scores of 0 or one for placebo/open-label GSK2982772 vs 3/22 (14%) for GSK2982772/open-label GSK2982772.ConclusionGSK2982772 was generally well tolerated, with no treatment-related safety concerns identified. However, no significant differences in efficacy were observed between treatment groups, suggesting that GSK2982772 as monotherapy is not a promising treatment for patients with active UC.Trial registration numberNCT02903966.

Project description:ImportanceOlamkicept, a soluble gp130-Fc-fusion-protein, selectively inhibits interleukin 6 (IL-6) trans-signaling by binding the soluble IL-6 receptor/IL-6 complex. It has anti-inflammatory activities in inflammatory murine models without immune suppression.ObjectiveTo assess the effect of olamkicept as induction therapy in patients with active ulcerative colitis.Design, setting, and participantsRandomized, double-blind, placebo-controlled phase 2 trial of olamkicept in 91 adults with active ulcerative colitis (full Mayo score ≥5, rectal bleeding score ≥1, endoscopy score ≥2) and an inadequate response to conventional therapy. The study was conducted at 22 clinical study sites in East Asia. Patients were recruited beginning in February 2018. Final follow-up occurred in December 2020.InterventionsEligible patients were randomized 1:1:1 to receive a biweekly intravenous infusion of olamkicept 600 mg (n = 30) or 300 mg (n = 31) or placebo (n = 30) for 12 weeks.Main outcomes and measuresThe primary end point was clinical response at week 12 (defined as ≥3 and ≥30% decrease from baseline total Mayo score; range, 0-12 [worst] with ≥1 decrease and ≤1 in rectal bleeding [range, 0-3 {worst}]). There were 25 secondary efficacy outcomes, including clinical remission and mucosal healing at week 12.ResultsNinety-one patients (mean age, 41 years; 25 women [27.5%]) were randomized; 79 (86.8%) completed the trial. At week 12, more patients receiving olamkicept 600 mg (17/29 [58.6%]) or 300 mg (13/30 [43.3%]) achieved clinical response than placebo (10/29 [34.5%]), with adjusted difference vs placebo of 26.6% (90% CI, 6.2% to 47.1%; P = .03) for 600 mg and 8.3% (90% CI, -12.6% to 29.1%; P = .52) for 300 mg. Among patients randomized to receive 600 mg olamkicept, 16 of 25 secondary outcomes were statistically significant compared with placebo. Among patients randomized to receive 300 mg, 6 of 25 secondary outcomes were statistically significant compared with placebo. Treatment-related adverse events occurred in 53.3% (16/30) of patients receiving 600 mg olamkicept, 58.1% (18/31) receiving 300 mg olamkicept, and 50% (15/30) receiving placebo. The most common drug-related adverse events were bilirubin presence in the urine, hyperuricemia, and increased aspartate aminotransferase levels, and all were more common in the olamkicept groups compared with placebo.Conclusions and relevanceAmong patients with active ulcerative colitis, biweekly infusion of olamkicept 600 mg, but not 300 mg, resulted in a greater likelihood of clinical response at 12 weeks compared with placebo. Further research is needed for replication and to assess longer-term efficacy and safety.Trial registrationClinicalTrials.gov Identifier: NCT03235752.

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Randomised clinical trial: a placebo-controlled study of intravenous golimumab induction therapy for ulcerative colitis.

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Randomised clinical trial: a placebo-controlled study of intravenous golimumab induction therapy for ulcerative colitis.

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