Study to Evaluate the Safety, Tolerability, and Efficacy of Cilofexor in Adults With Primary Sclerosing Cholangitis Without Cirrhosis

May 11, 2021 updated by: Gilead Sciences

A Phase 2, Randomized, Double-Blind, Placebo Controlled Study Evaluating the Safety, Tolerability, and Efficacy of GS-9674 in Subjects With Primary Sclerosing Cholangitis Without Cirrhosis

The primary objective of this study is to evaluate the safety and tolerability of cilofexor in adults with primary sclerosing cholangitis (PSC).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
52

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Austria
      • Vienna, Austria
        • Universitätsklinik Klinik für Innere Medizin III
  • Canada
    • Alberta
      • Calgary, Alberta, Canada
        • University of Calgary Liver Unit (Heritage Medical Research Clinic)
    • Ontario
      • Toronto, Ontario, Canada, M6H 3M1
        • Toronto Liver Centre
  • United Kingdom
      • Birmingham, United Kingdom
        • New Queen Elizabeth Hospital NHS Foundation Trust
      • London, United Kingdom, NW3 2QG
        • Royal Free Hospital
      • London, United Kingdom, SE5 9RS
        • King's College Hospital NHS Foundation Trust
      • Norwich, United Kingdom, NR4 7UY
        • Norfolk and Norwich University Hospital
  • United States
    • California
      • Sacramento, California, United States, 95817
        • University of California, Davis Medical Center
      • San Francisco, California, United States, 94143
        • University of California San Francisco
    • Colorado
      • Aurora, Colorado, United States, 80045
        • University of Colorado Denver
    • Florida
      • Lakewood Ranch, Florida, United States, 34211
        • Florida Digestive Health Specialists
      • Miami, Florida, United States, 33136
        • Schiff Center for Liver Diseases/University of Miami
    • Indiana
      • Indianapolis, Indiana, United States, 46202
        • Indiana University Health University Hospital
    • Minnesota
      • Saint Paul, Minnesota, United States, 55117
        • Minnesota Gastroenterology, P.A.
    • North Carolina
      • Durham, North Carolina, United States, 27710
        • Duke University Medical Center
    • Texas
      • Dallas, Texas, United States, 75203
        • The Liver Institute at Methodist Dallas Medical Center
    • Utah
      • Murray, Utah, United States, 84107
        • Intermountain Medical Center - Transplant Services
    • Virginia
      • Charlottesville, Virginia, United States, 22908
        • University of Virginia
      • Richmond, Virginia, United States, 23298
        • Virginia Commonwealth University
      • Richmond, Virginia, United States, 23249
        • McGuire VA Medical Center
      • Richmond, Virginia, United States, 23226
        • Bon Secours St. Mary's Hospital of Richmond, Inc.
    • Washington
      • Seattle, Washington, United States, 98104
        • University of Washington
      • Seattle, Washington, United States, 98104
        • Swedish Organ Transplant and Liver Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years to 66 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Key Inclusion Criteria:

  • Diagnosis of PSC based on cholangiogram (magnetic resonance cholangiopancreatography (MRCP), endoscopic retrograde cholangiopancreatography (ERCP), or percutaneous transhepatic cholangiogram (PTC)) within the previous 12 months
  • Serum alkaline phosphatase (ALP) > 1.67 x upper limit of the normal range (ULN)
  • For individuals on ursodeoxycholic acid (UDCA), the dose of UDCA must have been stable for at least 12 months prior to screening through the end of treatment. For individuals not on UDCA, no UDCA use for at least 12 months before screening through the end of treatment
  • For individuals being administered biologic treatments (eg, antitumor necrosis factor (TNF) or anti-integrin monoclonal antibodies), immunosuppressants or systemic corticosteroids, the dose must have been stable at least 3 months prior to screening and anticipated to remain stable throughout the trial
  • Screening FibroSURE/FibroTest® <0.75 unless a historical liver biopsy within 12 months of screening does not reveal cirrhosis. In adults with Gilbert's syndrome or hemolysis, FibroSURE/FibroTest® will be calculated using direct bilirubin instead of total bilirubin.

Key Exclusion Criteria:

  • Alanine aminotransferase (ALT) > 10 x ULN
  • Total bilirubin > 2 x ULN
  • International normalized ratio (INR) > 1.2 unless on anticoagulant therapy
  • Small-duct PSC (histologic evidence of PSC with normal bile ducts on cholangiography)
  • Other causes of liver disease including secondary sclerosing cholangitis and viral, metabolic, alcoholic, and other autoimmune conditions. Individuals with hepatic steatosis may be included if there is no evidence of nonalcoholic steatohepatitis (NASH) in the opinion of the investigator or on liver biopsy;
  • Ascending cholangitis within 60 days of screening
  • Presence of a percutaneous drain or bile duct stent
  • Use of fibrates or obeticholic acid within 3 months prior to screening through the end of treatment

  • Cirrhosis of the liver as defined by any of the following:

    • Historical liver biopsy demonstrating cirrhosis (eg, Ludwig stage 4 or Ishak stage ≥ 5)
    • Prior history of decompensated liver disease, including ascites, hepatic encephalopathy or variceal bleeding
    • Liver stiffness > 14.4 kilopascal (kPa) by FibroScan
  • Current, active inflammatory bowel disease (IBD) defined as a partial Mayo score of > 1 and/or a score on the Rectal Bleeding domain > 0.

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Cilofexor 100 mg (Blinded Study Phase)
Cilofexor 100 mg + placebo to match cilofexor 30 mg for up to 12.6 weeks
Drug: Cilofexor
Tablet(s) administered orally once daily with food
Other Names:
  • GS-9674
Drug: Placebo to match cilofexor
Tablet(s) administered orally once daily with food
Experimental: Cilofexor 30 mg (Blinded Study Phase)
Cilofexor 30 mg + placebo to match cilofexor 100 mg for up to 12.7 weeks
Drug: Cilofexor
Tablet(s) administered orally once daily with food
Other Names:
  • GS-9674
Drug: Placebo to match cilofexor
Tablet(s) administered orally once daily with food
Placebo Comparator: Placebo (Blinded Study Phase)
Placebo to match cilofexor 30 mg + placebo to match cilofexor 100 mg for up to 12.3 weeks
Drug: Placebo to match cilofexor
Tablet(s) administered orally once daily with food
Experimental: Cilofexor (Open Label Extension Phase)
Following the Blinded Study Phase, eligible participants received cilofexor for an additional up to 97.4 weeks.
Drug: Cilofexor
Tablet(s) administered orally once daily with food
Other Names:
  • GS-9674

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants Experiencing Treatment-Emergent Adverse Events During the Blinded Phase
Time Frame: First dose date up to last dose date plus 30 days (Up to 17 weeks)
Treatment-emergent adverse events occurring during the Blinded Phase were defined as 1 or both of the following: 1) Any adverse events (AEs) with an onset date on or after the study drug start date and no later than 30 days after permanent discontinuation of study drug in the Blinded Phase (and before the first dosing date in the Open Label Extension (OLE) Phase), or 2) Any AEs leading to premature discontinuation of study drug in the Blinded Phase.
First dose date up to last dose date plus 30 days (Up to 17 weeks)
Percentage of Participants Experiencing Treatment-Emergent Serious Adverse Events During the Blinded Phase
Time Frame: First dose date up to last dose date plus 30 days (Up to 17 weeks)
A serious adverse event was defined as an event that, at any dose, resulted in any of the following: death, life-threatening, in-patient hospitalization or prolongation of existing hospitalization, persistent or significant disability/incapacity, a congenital anomaly/birth defect, or a medically important event or reaction.
First dose date up to last dose date plus 30 days (Up to 17 weeks)
Percentage of Participants Experiencing Treatment-Emergent Laboratory Abnormalities During the Blinded Phase
Time Frame: First dose date up to last dose date plus 30 days (Up to 17 weeks)
Treatment-emergent laboratory abnormalities occurring during the Blinded Phase were defined as values that increase at least 1 toxicity grade from baseline at any postbaseline time point, up to and including the date of last dose of study drug in the Blinded Phase plus 30 days (and prior to or on the first dose date of the OLE phase). The Common Terminology Criteria for Adverse Events (CTCAE) Version 4.03 was used for assigning toxicity grades (0 to 4, with higher grades indicating more severity).
First dose date up to last dose date plus 30 days (Up to 17 weeks)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Gilead Sciences

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 29, 2016

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 28, 2018

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 18, 2020

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 13, 2016

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 21, 2016

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 24, 2016

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 7, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 11, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2021

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • GS-US-428-4025
  • 2016-002442-23 (EudraCT Number)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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