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Clinical Trials/NCT05050136
NCT05050136
Recruiting
Phase 2

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

Mirum Pharmaceuticals, Inc.167 sites in 11 countries260 target enrollmentSeptember 22, 2021

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.

Registry
clinicaltrials.gov
Start Date
September 22, 2021
End Date
July 1, 2027
Last Updated
last month
Study Type
Interventional
Study Design
Parallel
Sex
All

Investigators

Responsible Party
Sponsor

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)

Study Sites (167)

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Related News

Phase 3 Trial Evaluating Maralixibat for Cholestasis-Related Pruritus- A Phase 3 clinical trial (EXPAND) is underway to assess maralixibat's efficacy in treating pruritus associated with rare cholestatic conditions, excluding Alagille syndrome and PFIC. - The EXPAND trial aims to enroll 90 participants aged 6 months and older across multiple sites in the U.S., South America, Europe, and the Middle East, with enrollment expected to conclude in 2026. - Participants will receive either maralixibat or a placebo, with the primary goal of assessing changes in the caregiver-reported ItchRO(Obs) severity score. - Mirum Pharmaceuticals is also investigating volixibat for pruritus in primary sclerosing cholangitis (PSC) and primary biliary cholangitis (PBC), with Phase 2 trial data expected in 2026.Volixibat Receives FDA Breakthrough Therapy Designation for Cholestatic Pruritus in Primary Biliary Cholangitis- The FDA granted Breakthrough Therapy Designation to volixibat for treating cholestatic pruritus in patients with primary biliary cholangitis (PBC). - This designation is based on positive interim results from the Phase 2b VANTAGE study, showcasing statistically significant pruritus improvement versus placebo. - Volixibat, an oral ileal bile acid transporter (IBAT) inhibitor, could expedite development and review for this burdensome symptom of PBC. - Enrollment in the confirmatory portion of the VANTAGE study is ongoing, with completion expected in 2026, marking a significant step forward.