Study to Evaluate the Safety, Tolerability, and Efficacy of Cilofexor in Adults With Primary Biliary Cholangitis Without Cirrhosis (PBC-Phase 2)
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ClinicalTrials.gov Identifier: NCT02943447 |
Recruitment Status :
Terminated
(The study was terminated because of the availability of alternate therapies for primary biliary cholangitis (PBC).)
First Posted : October 24, 2016
Results First Posted : January 13, 2020
Last Update Posted : September 22, 2020
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Primary Biliary Cholangitis | Drug: Cilofexor Drug: Placebo to match cilofexor | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 71 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Participant, Investigator) |
Primary Purpose: | Treatment |
Official Title: | A Phase 2, Randomized, Double-Blind, Placebo-Controlled Study Evaluating the Safety, Tolerability, and Efficacy of GS-9674 in Subjects With Primary Biliary Cholangitis Without Cirrhosis |
Actual Study Start Date : | December 1, 2016 |
Actual Primary Completion Date : | September 4, 2019 |
Actual Study Completion Date : | September 4, 2019 |

Arm | Intervention/treatment |
---|---|
Experimental: Cilofexor 30 mg (Blinded Study Phase)
Cilofexor 30 mg + placebo to match cilofexor 100 mg for 12 weeks.
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Drug: Cilofexor
Tablet(s) administered orally once daily, with food
Other Name: GS-9674 Drug: Placebo to match cilofexor Tablet(s) administered orally once daily, with food |
Experimental: Cilofexor 100 mg (Blinded Study Phase)
Cilofexor 100 mg + placebo to match cilofexor 30 mg for 12 weeks.
|
Drug: Cilofexor
Tablet(s) administered orally once daily, with food
Other Name: 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 12 weeks.
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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 may have the option to receive open-label cilofexor 100 mg for an additional 96 weeks.
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Drug: Cilofexor
Tablet(s) administered orally once daily, with food
Other Name: GS-9674 |
- Percentage of Participants Experiencing Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (TESAEs) in the Blinded Study Phase [ Time Frame: First dose date up to Week 12 + 30 days ]
- Percentage of Participants Experiencing TEAEs and TESAEs in the Open-Label Extension (OLE) Phase [ Time Frame: First dose date in the OLE phase up to last dose date (Maximum: 97.4 weeks) + 30 days ]
- Percentage of Participants Who Experienced Graded Laboratory Abnormalities in the Blinded Study Phase [ Time Frame: First dose date up to Week 12 + 30 days ]Treatment-emergent laboratory abnormalities were defined as values that increase at least one toxicity grade from baseline. The most severe graded abnormality from all tests was counted for each participant.
- Percentage of Participants Who Experienced Graded Laboratory Abnormalities in the OLE Phase [ Time Frame: First dose date in the OLE phase up to last dose date (Maximum: 97.4 weeks) + 30 days ]Treatment-emergent laboratory abnormalities were defined as values that increase at least one toxicity grade from baseline. The most severe graded abnormality from all tests was counted for each participant.

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Ages Eligible for Study: | 18 Years to 70 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Key Inclusion Criteria:
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Meets all of the following conditions
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Definite or probable PBC as defined by at least 2 of the 3 following criteria:
- Serum alkaline phosphatase (ALP) > the upper limit of normal (ULN)
- Presence of anti-mitochondrial antibodies (AMA) in serum (≥ 1:40 on immunofluorescence)
- Liver histological findings consistent with PBC including nonsuppurative, destructive cholangitis affecting mainly the interlobular bile and septal bile ducts
- Serum ALP > 1.67 x ULN and/or total bilirubin >ULN but ≤ 2 x ULN
- Ursodeoxycholic acid (UDCA) use at a stable dose for at least 12 months or intolerant of UDCA with no UDCA use for at least 12 months before screening
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- 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) > 5 x ULN
- Total bilirubin > 2 x ULN
- International normalized ratio (INR) > 1.2 unless on anticoagulant therapy
- Other causes of liver disease including viral, metabolic, alcoholic, and other autoimmune conditions. Participants 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.
- Use of fibrates or obeticholic acid within 3 months prior to screening through the end of treatment
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Cirrhosis of the liver as defined by any of the following:
- Historical liver biopsy demonstrating cirrhosis (eg, Ludwig stage 4 or Ishak stage ≥ 5)
- History of decompensated liver disease, including ascites, hepatic encephalopathy or variceal bleeding
- Liver stiffness > 16.9 kPa by FibroScan®
Note: Other protocol defined Inclusion/Exclusion criteria may apply.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02943447
United States, California | |
Sacramento, California, United States, 95817 | |
United States, Colorado | |
Aurora, Colorado, United States, 80045 | |
United States, Florida | |
Lakewood Ranch, Florida, United States, 34211 | |
Miami, Florida, United States, 33136 | |
United States, Georgia | |
Marietta, Georgia, United States, 30060 | |
United States, Minnesota | |
Saint Paul, Minnesota, United States, 55114 | |
United States, Texas | |
Arlington, Texas, United States, 76012 | |
Dallas, Texas, United States, 75203 | |
Dallas, Texas, United States, 75246 | |
Houston, Texas, United States, 77030 | |
United States, Virginia | |
Charlottesville, Virginia, United States, 22908 | |
Newport News, Virginia, United States, 23602 | |
United States, Washington | |
Seattle, Washington, United States, 98104 | |
Austria | |
Graz, Steiermark, Austria, 8036 | |
Wien, Vienna, Austria, 1090 | |
Canada, Alberta | |
Calgary, Alberta, Canada, T2N 4Z6 | |
Canada, British Columbia | |
Vancouver, British Columbia, Canada, V5Z 1M9 | |
Vancouver, British Columbia, Canada, V6Z 2K5 | |
Canada, Manitoba | |
Winnipeg, Manitoba, Canada, R3E 0T6 | |
Canada, Ontario | |
Toronto, Ontario, Canada, M5G 2C4 | |
Vaughan, Ontario, Canada, L4L 4Y7 | |
United Kingdom | |
Birmingham, England, United Kingdom, B215 2GW | |
London, England, United Kingdom, NW3 2QG | |
London, England, United Kingdom, SE5 9RS | |
Norwich, England, United Kingdom, NR4 7UY |
Study Director: | Gilead Study Director | Gilead Sciences |
Documents provided by Gilead Sciences:
Responsible Party: | Gilead Sciences |
ClinicalTrials.gov Identifier: | NCT02943447 |
Other Study ID Numbers: |
GS-US-427-4024 2016-002443-42 ( EudraCT Number ) |
First Posted: | October 24, 2016 Key Record Dates |
Results First Posted: | January 13, 2020 |
Last Update Posted: | September 22, 2020 |
Last Verified: | September 2020 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Cholangitis Liver Cirrhosis, Biliary Fibrosis Pathologic Processes Bile Duct Diseases Biliary Tract Diseases |
Digestive System Diseases Cholestasis, Intrahepatic Cholestasis Liver Diseases Liver Cirrhosis |