Primary Biliary Cholangitis clinical trials at University of California Health

The participants in this study will have confirmed PBC with inadequate response or intolerance to Ursodeoxycholic acid (UDCA), which is a medication used in the management and treatment of cholestatic liver disease. Primary biliary cholangitis is a slowly progressive disease characterised by damage of the bile ducts in the liver, leading to a build-up of bile acids which causes further damage. The liver damage in PBC may lead to scarring (cirrhosis). PBC may also be associated with multiple symptoms. Many patients with PBC may require a liver transplant or may die if the disease progresses and a liver transplant is not done. This study will compare a daily dose of elafibranor (the study drug) to a daily dose of placebo (a dummy treatment). The main aim of this study is to determine if elafibranor is better than placebo in reducing ALP levels to a normal value. High ALP levels in the blood can indicate liver disease. There will be three periods in this study: A screening period (up to 8 weeks) to assess whether the participant can take part; a treatment period (up to 52 weeks) where eligible participants will be grouped as per their blood ALP levels and randomly assigned to either receive elafibranor or placebo, and a follow-up period (4 weeks) where participants' health will be monitored. Participants will be twice as likely to receive elafibranor than placebo (2:1 ratio). Participants will undergo blood sampling, urine collections, physical examinations, clinical evaluations, electrocardiograms (ECG: recording of the electrical activity of heart), ultrasound examinations (a noninvasive test that passes a probe over skin to look at the bladder, urinary tract, and liver), and Fibroscan® examinations (a noninvasive test that passes a probe on skin to measure stiffness of the liver). They will also be asked to fill in questionnaires. Each participant will be in this study for up to 64 weeks (15 months).

To Determine the Effects of Seladelpar on Normalization of Alkaline Phosphatase Levels in Subjects with Primary Biliary Cholangitis (PBC) and an Incomplete Response or Intolerance to Ursodeoxycholic Acid (UDCA). The primary objective is to evaluate the effect of seladelpar treatment at Week 52 compared to placebo based on normalization of alkaline phosphatase (ALP) defined by a composite endpoint of ALP ≤ 1.0× upper limit of normal (ULN) and ≥ 15% decrease from baseline in PBC participants with an ALP value greater than ULN but less than 1.67× ULN.

An Open Label Long-Term Study to Evaluate the Safety and Tolerability of Seladelpar in Subjects with Primary Biliary Cholangitis (PBC)

The participants of this study will have confirmed Primary Biliary Cholangitis (PBC) with inadequate response or intolerance to ursodeoxycholic acid (which is a medication used in the management and treatment of cholestatic liver disease). PBC is a slowly progressive disease characterized by damage of the bile ducts in the liver, leading to a buildup of bile acids which causes further damage. The liver damage in PBC may lead to scarring (cirrhosis). PBC may also be associated with multiple symptoms. Many patients with PBC may require liver transplant or may die if the disease progresses and a liver transplant is not done. The main aim of this study is to determine if elafibranor (the study drug) is better than placebo (a dummy treatment) at decreasing the levels of a specific blood test (alkaline phosphatase) that provides information about participant's disease. This study will also evaluate the safety of long-term treatment with elafibranor, as well as the impact on symptoms such as itchy skin (pruritus) and tiredness (fatigue). This study has two main parts: Part 1 will compare a daily dose of elafibranor to a daily dose of placebo and will last between a minimum of one year and a maximum of two years. Part 2, all participants will receive elafibranor for a period of up to 5 years or until the total treatment duration (part 1 and part 2) reaches 6 years, whichever occurs first.

This study is a Phase 2a First-in-Human (FIH) clinical trial to assess the safety, tolerability, pharmacodynamics (PD), and efficacy of multiple ascending doses of CNP-104. The study consists of a 120 day primary study followed by a 20 month long-term safety and durability of response follow-up period.