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A randomised, double-blind, multicentre, international placebo-controlled phase II study aimed at investigating the efficacy and safety of a novel modified-release tablet formulation of colesevelam hydrochloride in patients with idiopathic bile acid diarrhoea (BAD)

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-511993-55-00
Acronym
CB-01-33/01
Enrollment
120
Registered
2025-05-27
Start date
2025-09-18
Completion date
Unknown
Last updated
2025-10-29

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

Conditions

idiopathic bile acid diarrhoea (BAD)

Brief summary

Proportion of study participants, who are stool consistency responders at Week 8 after T1 or T2 as compared to P. A stool consistency responder is defined as a participant who experiences a ≥50% reduction in the number of days with at least one stool that has a consistency of Type 6 or 7 in the 7-point Bristol Stool Form Scale (BSFS) compared with baseline.

Detailed description

01. Proportion of study participants, who are stool consistency responders at Week 2 and 4 after T1 or T2 as compared to P., 02. Proportion of study participants achieving remission of diarrhoea as per Hjortswang criteria, defined as <3 bowel movements per day and <1 stool per day with consistency of Type 6 or 7 in the 7-point BSFS calculated as the mean of the last 7 days prior to Week 8 after T1 or T2 as compared to P., 03. Proportion of study participants, who are stool frequency responders at Week 8 after T1 or T2 as compared to P. A stool frequency responder is defined as a participant, who experiences a ≥50% reduction in the number of days with ≥3 bowel movements compared with baseline, 04. Proportion of study participants who achieve remission in urgency, defined as a score of <3 in the urgency numerical rating scale at Week 2, 4 and 8 after treatment with T1 or T2 as compared to P., 05. To compare between treatments the proportion of patients with and the number of adverse drug reactions after 8 weeks of treatment.

Interventions

DRUGColesevelam hydrochloride-MMX® 900 mg modified-release tablets
DRUGColesevelam hydrochloride-MMX® modified-release placebo tablets

Sponsors

Cosmo Technologies Limited
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Proportion of study participants, who are stool consistency responders at Week 8 after T1 or T2 as compared to P. A stool consistency responder is defined as a participant who experiences a ≥50% reduction in the number of days with at least one stool that has a consistency of Type 6 or 7 in the 7-point Bristol Stool Form Scale (BSFS) compared with baseline.

Secondary

MeasureTime frame
01. Proportion of study participants, who are stool consistency responders at Week 2 and 4 after T1 or T2 as compared to P., 02. Proportion of study participants achieving remission of diarrhoea as per Hjortswang criteria, defined as <3 bowel movements per day and <1 stool per day with consistency of Type 6 or 7 in the 7-point BSFS calculated as the mean of the last 7 days prior to Week 8 after T1 or T2 as compared to P., 03. Proportion of study participants, who are stool frequency responders at Week 8 after T1 or T2 as compared to P. A stool frequency responder is defined as a participant, who experiences a ≥50% reduction in the number of days with ≥3 bowel movements compared with baseline, 04. Proportion of study participants who achieve remission in urgency, defined as a score of <3 in the urgency numerical rating scale at Week 2, 4 and 8 after treatment with T1 or T2 as compared to P., 05. To compare between treatments the proportion of patients with and the number of adverse drug

Countries

Belgium, Denmark, Italy, Romania, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026