A Study to Assess How Well and Safely Elafibranor Works in Adult Participants With Primary Sclerosing Cholangitis

Официальное название

A Phase III, Multicentre, Randomised, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of Elafibranor in Adult Participants With Primary Sclerosing Cholangitis

Обзор

The purpose of this study is to find out how well and safely elafibranor works compared to placebo in adult participants with Primary sclerosing cholangitis (PSC). PSC is a rare disease that causes inflammation and scarring of the bile ducts in the liver. Over time, this can lead to liver damage and serious health problems, including the need for a liver transplant and death. In this study, about 350 participants with large duct PSC will take part. Participants will be randomized to receive either elafibranor 120 mg once daily or a placebo (a tablet with no active medicine). The study includes a screening period, an treatment period, and a post-treatment safety follow-up. During the study, participants will undergo routine clinical assessments, laboratory testing, imaging evaluations, and complete patient-reassessments to evaluate liver disease progression, symptoms, quality of life and safety. Following the end of treatment, participants will complete a safety follow-up period at approximately four weeks. Participants may withdraw from the study at any time. Each participant may be in the study for several years, as the treatment period will continue until the study reaches enough health events among participants, which is expected to take about 5 years.

Вмешательства

• Препарат Elafibranor
  Round and orange film coated tablet of 120 mg
• Другое Placebo
  Round and orange film coated tablet of placebo

Первичные конечные точки

• Event-Free Survival [Срок оценки: From baseline until the end of treatment (estimated up to 5 years)]

Вторичные конечные точки (9)

• Percentage of participants with ALP level within the pre-defined level [Срок оценки: From baseline to Week 48]
• Change from baseline in severity of a patient-reported cholestatic symptom: Pruritus [Срок оценки: From baseline to Week 24]
• Change from baseline in severity of a patient-reported cholestatic symptom: Fatigue [Срок оценки: From baseline to Week 48]
• Percentage of participants experiencing treatment-emergent adverse events (TEAEs), Serious Adverse Events (SAEs), and Adverse Events of Special Interests (AESIs) [Срок оценки: From baseline until the end of treatment (estimated up to 5 years)]
• Percentage of participants developing clinically significant changes in physical examination findings [Срок оценки: From baseline until the end of treatment (estimated up to 5 years)]
• Percentage of participants developing clinically significant changes in vital signs [Срок оценки: From baseline until the end of treatment (estimated up to 5 years)]
• Percentage of participants developing clinically significant changes in Electrocardiogram (ECG) readings. [Срок оценки: From baseline until the end of treatment (estimated up to 5 years)]
• Percentage of participants with clinically significant changes in laboratory parameters (blood chemistry, hematology, coagulation and urinalysis) [Срок оценки: From baseline until the end of treatment (estimated up to 5 years)]
• Percentage of participants developing cholangiocarcinoma (CCA), hepatocellular carcinoma (HCC), or colorectal cancer (CRC) [Срок оценки: From baseline until the end of treatment (estimated up to 5 years)]

Критерии участия

Критерии включения

• Adults participants aged 18 years or older
• Confirmed diagnosis of primary sclerosing cholangitis based on standard clinical, biochemical, and imaging criteria
• Compensated liver disease at screening
• Stable background therapy, where applicable prior to study entry
• Women of childbearing potential have to apply during the entire duration of the study a highly effective method of birth control
• Ability to provide written informed consent and comply with study procedures.

Критерии исключения

\- History or presence of other concomitant chronic liver disease

\- History of hepatic decompensation, including: i) History of liver transplantation, current MELD 3.0 score ≥12 due to hepatic impairment.

ii) Evidence of complications of cirrhosis

• Participants with cirrhosis who are also classified as Child-Pugh B or C based on the Child Pugh score.
• History of biliary intervention within 60 days prior to the screening period, and/or presence of percutaneous drain or bile duct stent at SV.
• History of bacterial cholangitis, and/or participant on antibiotics for prophylaxis of recurrent cholangitis within 60 days prior to the SV.
• History or any current suspicion of cholangiocarcinoma or hepatocellular carcinoma
• Known malignancy or history of malignancy within the last 5 years, with the exception of local, successfully treated basal cell carcinoma or in-situ carcinoma of the uterine cervix.
• Medical conditions that may cause non-hepatic increases in ALP (e.g. Paget's disease).
• Administration of the following medications are prohibited as specified below:

i) 3 months prior to baseline: norucholic acid, fibrates, seladelpar and glitazones.

ii) 3 months prior to baseline: cyclosporine, mycophenolate, pentoxifylline, and chronic systemic corticosteroids (except as part of management of IBD at an ongoing stable dose); potentially hepatotoxic drugs (including α-methyl-dopa, sodium valproic acid, isoniazid, or nitrofurantoin).

• Participants who are currently participating in, plan to participate in, or have participated in an investigational drug or medical device study containing active substance within 30 days or five half-lives, whichever is longer, prior to the SV. - Participants with previous exposure to elafibranor.
• Electrocardiogram (ECG) with QT interval corrected by Fridericia's formula (QTcF) >450 msec in males or QTcF >470 msec in females for participants without bundle branch block.
• Significant renal disease,
• For female participants: known pregnancy, or has a positive serum pregnancy test, or lactating.
• Regular alcohol intake in excess of the recommended limit of 2 standard drinks per day for men or 1 standard drink per day for women
• History of alcohol abuse, or other substance abuse within 1 year prior to SV.
• Sensitivity to any of the study interventions, or components thereof, or drug or other allergy that contraindicates participation in the study.
• Mental instability or incompetence
• Participant has or is known to have tested positive for human immunodeficiency virus (HIV) type 1 or 2 at SV.
• Medical conditions that may diminish life expectancy to <2 years.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Распределение

Рандомизированное

Модель

Параллельные группы

Маскирование

Двойное слепое

Основная цель

Лечение

Центры проведения

США · 6 центров

• Arizona Liver Health — Chandler
• Peak Gastroenterology Associates — Colorado Springs
• Gastrointestinal Associates of Northeast Tennessee — Johnson City
• Liver Associates of Texas, P.A. — Houston
• American Research Corporation at The Texas Liver Institute — San Antonio
• Velocity Clinical Research, Seattle — Seattle

Идентификаторы

NCT: NCT07387549 · CLIN-60190-475 · 2026-525242-29-00

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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