A Study to Investigate the Safety and Efficacy of GSK4532990 Compared With Placebo in Adult Participants Aged 18 to 65 Years With Alcohol-related Liver Disease

Inclusion Criteria: * Capable of giving signed informed consent prior to the performance of any study-specific procedures. * Able and willing to comply with all study assessments and adhere to the protocol schedule of activities. * In the opinion of the investigator, there is a history of alcohol consumption compatible with either ALD or Met ALD. * A female participant is eligible to participate after meeting additional pre-defined criteria. * Participants must meet predefined stable use requirements of concomitant medications based on study criteria. Exclusion Criteria: * Meeting any definition of organ system failure as defined by the North American Consortium for Study of End-stage Liver Disease (NACSELD) * Exceeding pre-defined biochemical parameters for Alanine Aminotransferase (ALT), Aspartate aminotransferase (AST), Alkaline Phosphatase (ALP), Platelets, International normalised ratio (INR), Albumin, estimated glomerular filtration rate (eGFR), Urine albumin-creatinine ratio (UACR) or Glycosylated Hemoglobin (HbA1c). Other primary causes of liver disease based on study criteria. * Current malignancy (except for basal cell carcinoma or uterine carcinoma-in-situ) at screening. Participants under evaluation for possible malignancy at screening are not eligible. * Prior organ transplant or current listing or active consideration for organ transplant during the screening period (except for corneal transplants). * Chronic or acute, including partial, known portal vein thrombosis. * Prior transjugular intrahepatic portosystemic shunt (TIPSS) insertion. * Any acute cardiovascular event including myocardial infarction, unstable angina, symptomatic heart failure, or cerebrovascular accident in the 6 months prior to screening. * Poorly controlled hypertension * Clinical suspicion of rhabdomyolysis during the screening period * Clinical suspicion of a bleeding episode during the screening period related to portal hypertension and/or low blood fibrinogen level. * Body Mass Index (BMI) \>35 kg/m2 at screening * Any liver-related clinical event that started (onset) \<8 weeks prior to Baseline (D1).