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A dose-finding and confirmatory trial of OPC-6535 in patients with active Crohn's disease

A multinational, multicenter, randomized, double-blind, placebo-controlled, dose-finding and confirmatory trial of OPC-6535 in patients with active Crohn's disease

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2080220884
Enrollment
180
Registered
2009-09-30
Start date
2009-10-13
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Active Crohn's Disease

Interventions

Sponsors

Otsuka Pharmaceutical Co., Ltd.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: * Primary lesion in either small intestine or large intestine * C-reactive protein (CRP) level above the upper limit of the normal range * Patients who have been receiving a 5-ASA formulation (oral mesalazine) at a fixed dose of 2.25 g/day or higher (not exceeding the approved dose) and at a fixed dosing regimen * Patients who have not received enteral nutrition or who have been receiving enteral nutrition at a fixed intake of 1200 kcal/day or less

Exclusion criteria

Exclusion criteria: * Patients with an uncontrolled external fistula (including anal fistula) * Patients with a history of total proctocolectomy or subtotal colectomy * Patients with short bowel syndrome * Patients with an artificial anus * Patients with serious infectious disease (intra-abdominal abscess, etc) * Patients with malignant tumor * Female patients who are pregnant, lactating, or possibly pregnant, or who wish to become pregnant during the trial period

Design outcomes

Primary

MeasureTime frame
efficacy Clinical improvement rate after 8 weeks number of subjects showing clinical improvement / number of subjects evaluated x 100

Secondary

MeasureTime frame
efficacy Clinical improvement rate after 4 weeks efficacy Remission rate after 4, 8 weeks efficacy CRP after 4, 8 weeks mean change in CRP level from the baseline

Countries

Asia except Japan, Japan

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026