A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of Volixibat in the Treatment of Cholestatic Pruritus in Patients With Primary Biliary Cholangitis
Overview
- Phase
- Phase 2
- Intervention
- Volixibat
- Conditions
- Primary Biliary Cholangitis
- Sponsor
- Mirum Pharmaceuticals, Inc.
- Enrollment
- 260
- Locations
- 167
- Primary Endpoint
- Mean change in the daily itch scores using the Adult Itch Reported Outcome (Adult ItchRO) questionnaire
- Status
- Recruiting
- Last Updated
- last month
Overview
Brief Summary
The purpose of this clinical research study is to learn more about the use of the study medicine, volixibat, for the treatment of pruritus (itching) associated with Primary Biliary Cholangitis (PBC), and to assess the possible impact on the disease progression of PBC.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Provide signed informed consent at the screening visit as well as comply with all study visits and requirements through the end of the study
- •Male or female, age ≥18 years at the screening visit
- •Confirmed diagnosis of PBC in line with the AASLD guidelines
- •UDCA, anti-pruritic medication and PPAR agonist use will be allowed if meeting additional criteria
- •Qualified pruritus associated with PBC as assessed by Adult ItchRO
Exclusion Criteria
- •Pruritus associated with an etiology other than PBC
- •Evidence or clinical suspicion of decompensated cirrhosis or a history of decompensation events
- •Current symptomatic cholelithiasis or inflammatory gallbladder disease
- •History of small bowel surgery/resection impacting the terminal ileum that may disrupt the enterohepatic circulation.
- •Evidence, history, or suspicion of other liver diseases; PBC patients with AIH are not excluded
- •History of Liver transplantation
Arms & Interventions
Part 1 Arm 1: Volixibat 20mg
Participants randomized to this arm will receive volixibat 20mg twice daily.
Intervention: Volixibat
Part 1 Arm 2: Volixibat 80mg
Participants randomized to this arm will receive volixibat 80mg twice daily.
Intervention: Volixibat
Part 1 Arm 3: Placebo
Participants in this arm will receive capsules matched to the study drug minus the active volixibat substance, twice daily.
Intervention: Placebo
Part 2 Arm 1: Volixibat Selected Dose 20mg
Participants randomized to this arm will receive volixibat 20mg twice daily.
Intervention: Volixibat
Part 2 Arm 2: Placebo
Participants in this arm will receive capsules matched to the study drug minus the active volixibat substance, twice daily.
Intervention: Placebo
Outcomes
Primary Outcomes
Mean change in the daily itch scores using the Adult Itch Reported Outcome (Adult ItchRO) questionnaire
Time Frame: Baseline to week 28
The Adult ItchRO is an 11-point NRS measurement of itch severity ranging from 0=no itch to 10=worst possible itch.
Secondary Outcomes
- Incidence of adverse events(Baseline to week 28)
- Changes in alkaline phosphatase(Baseline to week 28)
- Changes in total bilirubin(Baseline to week 28)
- Proportion of participants with itch response using the Adult ItchRO(Baseline to week 28)
- Changes in serum bile acid levels(Baseline to week 28)
- Change in Primary Biliary Cholangitis Quality of Life Measure (PBC-40)(Baseline to week 28)
- Change in Patient-Reported Outcomes Measurement Information System (PROMIS®) fatigue questionnaire(Baseline to week 28)
- Change in Patient-Reported Outcomes Measurement Information System (PROMIS®) sleep disturbance questionnaire(Baseline to week 28)