Westlake

Researchers are evaluating whether the drugs retatrutide and tirzepatide can prevent major adverse liver outcomes (MALO) in adults with metabolic dysfunction-associated steatotic liver disease (MASLD) who are at high risk. This Phase 3 trial enrolls about 4,500 adults with MASLD identified by non-invasive tests indicating an increased likelihood of developing serious liver problems. The study aims to understand how these treatments might affect liver health over time compared to a placebo. Participants will be randomly assigned to receive either retatrutide, tirzepatide, or a placebo, all given by subcutaneous injection. The study will last approximately 224 weeks, during which participants may attend 25 to 30 clinic visits for monitoring and assessment. After the main study, eligible participants can join an optional 2-year extension where all will receive either retatrutide or tirzepatide regardless of their original group. Throughout the trial, participants’ liver function and disease progression will be closely monitored through various health assessments. Researchers will track the time to the first major adverse liver event as the main outcome. Safety and health status will be evaluated regularly during clinic visits, ensuring thorough observation over the long study period.

Researchers are evaluating how well oral icotrokinra works, its safety, and how well patients tolerate it in adults and adolescents with moderately to severely active ulcerative colitis, a chronic condition where the colon lining becomes inflamed and develops ulcers. This is a Phase 3 study aimed at finding effective treatments for this condition using a rigorous comparison. Participants will receive either icotrokinra tablets or placebo tablets taken by mouth. The study includes an induction phase and a maintenance phase, with adults participating in a randomized, double-blind, placebo-controlled design, while adolescents join an open-label maintenance study. Throughout the study, researchers will monitor clinical remission rates at 12 weeks during induction and at 40 weeks during maintenance. Participants will undergo assessments including endoscopic evaluations and pregnancy tests for females of childbearing potential. Safety and tolerability will be closely observed, with the total study duration covering both induction and maintenance periods.

Researchers are evaluating efruxifermin (EFX) in adults aged 18 to 80 who have compensated cirrhosis caused by nonalcoholic steatohepatitis (NASH) or metabolic dysfunction-associated steatohepatitis (MASH). This Phase 3, randomized, double-blind, placebo-controlled study aims to assess the safety and effectiveness of EFX in improving liver health and delaying disease progression in this population. The study focuses on subjects with advanced liver fibrosis (stage 4) but without liver decompensation. Participants are randomly assigned to receive either efruxifermin or a placebo, both administered by subcutaneous injection. The study includes two cohorts: Cohort 1 requires biopsy confirmation of liver fibrosis and specific metabolic features, while Cohort 2 allows biopsy or non-invasive diagnosis. Treatment and observation continue over an extended period to evaluate changes in liver fibrosis and clinical events. During the study, researchers will monitor the time until significant clinical events such as disease progression or liver decompensation occur, with a follow-up of up to five years. For Cohort 1, the proportion of participants showing improvement in fibrosis without worsening steatohepatitis will be assessed at 96 weeks. Participants will undergo regular evaluations including clinical assessments and laboratory tests to track liver function and safety throughout the study period.

Researchers are investigating the safety and effectiveness of efruxifermin in people with non-cirrhotic nonalcoholic steatohepatitis (NASH) or metabolic dysfunction-associated steatohepatitis (MASH) who have moderate to advanced liver fibrosis (stage 2 or 3). This Phase 3 study is randomized, double-blind, and placebo-controlled, enrolling a total of 1650 participants in two groups to evaluate treatment outcomes. Participants will receive either efruxifermin or a placebo by subcutaneous injection. The study involves two cohorts, with Cohort 1 including patients who have biopsy-confirmed NASH or MASH and specific liver fibrosis and activity scores. The treatment period and detailed dosing schedules are not provided but the study compares the effects of the active drug against placebo. During the study, participants will be monitored for improvement in liver disease status, including resolution of NASH/MASH and at least a one-stage improvement in liver fibrosis after 52 weeks for Cohort 1. Long-term outcomes such as event-free survival will be observed over 240 weeks. Safety and efficacy assessments will be conducted throughout the study period, including evaluations of liver histology and metabolic health.

This research aims to evaluate the effectiveness and safety of two different dose schedules of pegozafermin compared to a placebo in adults with metabolic dysfunction-associated steatohepatitis (MASH) who have liver fibrosis at stage F2 or F3. This phase 3 study focuses on improving liver fibrosis and steatohepatitis in this patient group, which involves chronic liver disease associated with metabolic dysfunction. Participants will receive either pegozafermin or a placebo through subcutaneous injections. The study compares two doses of pegozafermin to assess their impact on liver fibrosis and steatohepatitis. The treatment period lasts up to 52 weeks, with outcomes measured at this time point. During the study, participants will be monitored for improvements in liver fibrosis and resolution of steatohepatitis without worsening fibrosis by week 52. Researchers will also track the time until any disease progression occurs, up to 5 years. Throughout the trial, safety and efficacy will be carefully assessed through clinical evaluations and laboratory tests to ensure participant well-being.

Researchers are evaluating the effectiveness and safety of icotrokinra in adults with moderately to severely active Crohn's disease, a chronic condition causing severe inflammation in the intestinal tract. This Phase 2b/3 study aims to understand how well icotrokinra works compared to a placebo in improving symptoms and intestinal healing in this patient group. Participants will receive either icotrokinra or a matching placebo orally every day. The study includes both induction and maintenance phases where researchers assess clinical and endoscopic responses at specific time points, such as Week 12 and Week 40, to determine treatment effects over time. Throughout the study, participants will undergo various assessments including clinical evaluations, endoscopic exams, and safety monitoring. Researchers will measure outcomes like clinical response, clinical remission, and endoscopic healing at Weeks 12 and 40. The study involves regular monitoring to track the participants' health and treatment adherence over the duration of the trial.

Ulcerative Colitis (UC) and Crohn's Disease (CD) are long-term gut conditions that cause symptoms like diarrhea, inflammation, bleeding, and belly pain. This research aims to see how many participants with UC or CD achieve remission, meaning their signs and symptoms disappear, after 14 weeks of treatment with Vedolizumab. This is a Phase 4 study evaluating the use of Vedolizumab in a community setting for moderate to severely active UC or CD. Participants will receive Vedolizumab treatment for about one year. During the first 6 weeks, the medication will be given through an intravenous infusion. After this period, treatment will continue with subcutaneous injections of Vedolizumab for the remaining weeks. If a participant's condition does not improve after 14 weeks, they will stop this treatment and may switch to another therapy. Additional visits are scheduled at 26 weeks and 52 weeks, with a follow-up assessment 18 weeks after the last dose. Throughout the study, participants will visit the clinic multiple times for monitoring. Researchers will assess remission using patient-reported outcome measures at week 14. Other evaluations include clinical checks and safety monitoring during treatment and after finishing the medication. The total study involvement can last over a year, including treatment and follow-up periods.

The drug being tested in this study is vedolizumab. Vedolizumab is being tested to treat people with moderate to severe Crohn's disease who have experienced inadequate response, loss of response or intolerance to either one prior interleukin \[IL\] antagonist, and no other biologic/small molecule (Group A); one IL antagonist and either one Janus kinase inhibitor (JAKi) or one TNFi (other than adalimumab) \[Group B\] (Cohort 1) or one prior tumor necrosis factor inhibitor \[TNFi\] and no other biologic/small molecule (Group C); one TNFi and either 1 JAKi or one IL antagonist (other than UST) (Group D) (Cohort 2). The study will look at the efficacy and safety of dual targeted therapy. The study will enroll approximately 100 participants. Participants will be assigned to one of the two treatment groups in Part A: * Part A, Cohort 1: Vedolizumab + Adalimumab * Part A, Cohort 2: Vedolizumab + Ustekinumab All participants who achieve therapeutic benefit in Part A will receive vedolizumab IV 300 mg monotherapy from Week 30 until Week 46 in Part B. Participants will be followed for a further 20-week safety follow-up period to Week 72 (or 26 weeks post-last dose of study drug). This multi-center trial will be conducted in the United States and Canada. The overall time to participate in this study is approximately 76 weeks.

Researchers are evaluating the effects of combining vedolizumab intravenous infusions with oral tofacitinib tablets in adults who have moderate to severe ulcerative colitis (UC) and have not responded well to or tolerated up to two previous tumor necrosis factor (TNF) antagonist treatments. This Phase 4, open-label study focuses on the clinical remission achieved with this dual targeted therapy. The study includes about 65 participants and is being conducted at multiple centers in the United States and Canada. All participants will receive vedolizumab 300 mg intravenously together with tofacitinib 10 mg orally for the first 8 weeks. Those who respond to this combined treatment at Week 8 will then continue with vedolizumab alone for an additional 44 weeks. The total study duration for each participant can be up to 76 weeks, including a follow-up period of 26 weeks after the last dose of vedolizumab to monitor safety. During the study, participants will be regularly assessed for clinical response using the complete Mayo score at Week 8. The researchers will also monitor safety and remission status throughout the treatment and follow-up periods. Participants will undergo endoscopic evaluations, clinical exams, and laboratory tests to track their ulcerative colitis activity and response to the therapies.

Researchers are evaluating the effectiveness and safety of Afimkibart (RO7790121) as both an induction and maintenance treatment for people with moderately to severely active Crohn's disease in this Phase III, multicenter, double-blind, placebo-controlled study. The goal is to understand how well Afimkibart works compared to placebo in managing symptoms and disease activity over time. Participants will receive either Afimkibart or a matching placebo. Afimkibart is given both as an intravenous infusion and as a subcutaneous injection. This treat-through study means participants continue on the assigned treatment throughout the study period, allowing evaluation of both initial and ongoing therapy effects. During the study, participants will be regularly assessed to measure clinical remission using the Crohn's Disease Activity Index (CDAI) and to check for endoscopic response at week 52. Researchers will monitor safety and treatment effects throughout, with the entire participation lasting up to one year. Assessments include clinical evaluations and endoscopic examinations to track disease changes and treatment impact.