The primary objective of this study is to evaluate whether cilofexor reduces the risk of fibrosis progression among non-cirrhotic adults with primary sclerosing cholangitis (PSC).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
419
Percentage of Participants With Progression of Liver Fibrosis at Blinded Phase Week 96
Progression of liver fibrosis was defined as having a ≥ 1-stage increase from baseline in fibrosis according to the Ludwig classification at Blinded Phase Week 96. The stages of fibrosis was assessed according to Ludwig classification. Ludwig classification fibrosis stages range from 0 to 4, with higher scores indicating greater fibrosis (0=no fibrosis, 4=cirrhosis).
Time frame: Blinded Phase Week 96
Percentage of Participants Who Experienced Treatment-emergent Adverse Events (TEAEs) in The Blinded Phase
An AE was any untoward medical occurrence in a clinical study participant administered a study drug that does not necessarily have a causal relationship with the treatment. An AE can therefore be any unfavorable and/or unintended sign, symptom, or disease temporally associated with the use of a study drug, whether or not the AE is considered related to the study drug. For Blinded Study Phase and OLE Phase, TEAEs were defined as 1 or both of the following: Any 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 and/or any AEs leading to premature discontinuation of study drug.
Time frame: First dose date in the Blinded Phase up to 100.3 weeks plus 30 days
Percentage of Participants Who Experienced TEAEs in The OLE Phase
An AE was any untoward medical occurrence in a clinical study participant administered a study drug that does not necessarily have a causal relationship with the treatment. An AE can therefore be any unfavorable and/or unintended sign, symptom, or disease temporally associated with the use of a study drug, whether or not the AE is considered related to the study drug. For Blinded Study Phase and OLE Phase, TEAEs were defined as 1 or both of the following: Any 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 and/or any AEs leading to premature discontinuation of study drug.
Time frame: First dose date in the OLE Phase up to 45 weeks plus 30 days
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Institute For Liver Health
Glendale, Arizona, United States
The Institute for Liver Heath
Phoenix, Arizona, United States
Southern California Research Center
Coronado, California, United States
Altman Clinical and Translational Research Institute (Clinic)
La Jolla, California, United States
Scripps Clinic/Green Hospital
La Jolla, California, United States
Ruane Clinical Research Group Inc.
Los Angeles, California, United States
Stanford Hospital
Palo Alto, California, United States
California Liver Research Institute
Pasadena, California, United States
University of California, Davis Medical Center (study visits)
Sacramento, California, United States
Sutter Pacific Medical Foundation - California Pacific Medical Center
San Francisco, California, United States
...and 191 more locations
Percentage of Participants Who Experienced Treatment-emergent Serious Adverse Events (SAEs) in the Blinded Phase
An SAE was defined as an event that, at any dose, results in the following: death, a life-threatening situation; 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.
Time frame: First dose date in the Blinded Phase up to 100.3 weeks plus 30 days
Percentage of Participants Who Experienced Treatment-emergent SAEs in the OLE Phase
An SAE was defined as an event that, at any dose, results in the following: death, a life-threatening situation; 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.
Time frame: First dose date in the OLE Phase up to 45 weeks plus 30 days
Change From Baseline in Serum Concentrations of Alkaline Phosphatase (ALP) at Blinded Phase Week 96
Time frame: Baseline, Blinded Phase Week 96
Change From Baseline in Serum Concentrations of Alanine Aminotransferase (ALT) at Blinded Phase Week 96
Time frame: Baseline, Blinded Phase Week 96
Change From Baseline in Serum Concentrations of Fasting Total Bile Acids at Blinded Phase Week 96
Time frame: Baseline, Blinded Phase Week 96
Percentage of Participants With ≥ 25% Relative Reduction in Serum ALP Concentration From Baseline and No Worsening of Fibrosis According to the Ludwig Classification at Blinded Phase Week 96
The stages of fibrosis was assessed according to Ludwig classification. Ludwig classification fibrosis stages range from 0 to 4, with higher scores indicating greater fibrosis (0=no fibrosis, 4=cirrhosis).The percentage of participants with ≥ 25% reduction in serum ALP Concentration from baseline and no increase in fibrosis according to the Ludwig Classification at Blinded Phase Week 96 was analyzed.
Time frame: Baseline, Blinded Phase Week 96
Percentage of Participants With Fibrosis Improvement According to the Ludwig Classification at Blinded Phase Week 96
Fibrosis improvement was defined as having ≥ 1-stage decrease from baseline in fibrosis according to the Ludwig classification score at Blinded Study Phase Week 96. The stages of fibrosis was assessed according to Ludwig classification. Ludwig classification fibrosis stages range from 0 to 4, with higher scores indicating greater fibrosis (0=no fibrosis, 4=cirrhosis).
Time frame: Blinded Phase Week 96
Change From Baseline in Primary Sclerosing Cholangitis (PSC) Symptoms - Module 1 Based on Disease-specific Patient Reported Outcome (PSC-PRO) at Blinded Phase Week 96
The PSC-PRO addressed the severity of common everyday symptoms of PSC (eg, pruritus, fatigue, and right upper quadrant abdominal discomfort); and their functional impact (eg, on physical function, activities of daily living, and work productivity, etc). PSC-PRO module 1 - PSC symptoms contains a total of 12 questions asking about the severity of specific PSC symptoms on a scale of 0 (no symptoms) to 10 (symptoms as bad as you could imagine) with a 24-hour recall period. The total score, which is computed as 12 times the average of nonmissing scores of the 12 questions, can potentially range between 0 and 120, with higher scores indicating more severe symptoms. A positive change from baseline indicates worsening of symptoms.
Time frame: Baseline, Blinded Phase Week 96
Change From Baseline in Enhanced Liver Fibrosis (ELF™ ) Test Score at Blinded Phase Week 96
The Enhanced Liver Fibrosis (ELF™) test is a composite of three serum biomarkers of hepatobiliary fibrosis: hyaluronic acid, procollagen III amino-terminal peptide, and tissue inhibitor of metalloproteinase. A typical range for ELF™ test scores in PSC is between 6 and 14. Higher ELF™ test scores are associated with more severe liver disease. A positive change from baseline indicated worsening of fibrosis.
Time frame: Baseline, Blinded Phase Week 96
Change From Baseline in Liver Stiffness by FibroScan® at Blinded Phase Week 96
Change in liver stiffness was measured by FibroScan® scores. FibroScan measures liver scarring by measuring the stiffness of the liver. It's normally between 2 and 6 kPa. Many people with liver disease(s) have a result that's higher than the normal range. Higher scores indicate increased scarring of the liver. A positive change from baseline indicates severe liver disease(s).
Time frame: Baseline, Blinded Phase Week 96