SEL

The values of eGFRcr were calculated using the Chronic Kidney Disease Epidemiology (CKD-EPI) Creatinine Equation (2009). eGFRcr = 141\*min(Standardized Serum Creatinine (Scr)/kappa, 1) \^alpha\*max(Scr/ kappa, 1)\^(-1.209)\*0.993\^Age\*1.018\[if female\]\*1.159\[if Black\], where kappa=0.7(females) or 0.9(males), alpha=-0.329(females) or -0.411(males). min indicates the minimum of Scr/kappa or 1, max indicates the maximum of Scr/kappa or 1, and age is in years. Treatment-specific Baselines = the average of Visits A and B values for Placebo, and the average of Visit C and Day 1 values for SEL. Visit A= enrollment, Visit B= 7-14 days after Visit A, Visit C= 21-28 days after Visit B, and Visit 1= 7-14 days after Visit C.

The values of eGFRcr were calculated using the CKD-EPI Creatinine Equation (2009). eGFRcr = 141\*min(Scr/kappa, 1) \^alpha\*max(Scr/kappa, 1)\^(-1.209)\*0.993\^Age\*1.018\[if female\]\*1.159\[if Black\], where kappa=0.7(females) or 0.9(males), alpha=-0.329(females) or -0.411(males). min indicates the minimum of Scr/kappa or 1, max indicates the maximum of Scr/kappa or 1, and age is in years. Treatment specific baselines for eGFRcr: average of Visit A (enrollment) and Visit B (7-14 days after Visit A) values for Placebo, and average of Visit C (21-28 days after Visit B, and Visit 1 (7-14 days after Visit C) values for SEL.

Treatment-emergent laboratory abnormalities were defined as values that increase at least one toxicity grade from baseline. Participants with any laboratory abnormality were reported.

Fibrosis improvement was defined as ≥ 1-stage decrease from baseline in fibrosis according to the NASH clinical research network classification (CRN) classification. Worsening of NASH was defined as ≥ 1-point increase from baseline in hepatocellular ballooning or lobular inflammation. The 95% CI was based on the Clopper-Pearson method.

Treatment-emergent AEs were defined as events that met 1 or both of the following criteria: * Any AEs with onset dates on or after the study drug start date and no later than 30 days after permanent discontinuation of study drug * Any AEs leading to premature discontinuation of study drug

A treatment emergent serious adverse event (SAE) was defined as an event that, at any dose, results in the following: * Death * Life-threatening * In-patient hospitalization or prolongation of existing hospitalization * Persistent or significant disability/incapacity * A congenital anomaly/birth defect * A medically important event or reaction

Treatment-emergent laboratory abnormalities were defined as values that increased at least 1 toxicity grade from baseline at any postbaseline time point, up to and including the date of last dose of study drug plus 30 days for subjects who permanently discontinued study drug. If baseline laboratory data were missing, then any abnormality of at least Grade 1 was considered treatment emergent. Graded laboratory abnormalities were defined using the grading scheme in the Common Terminology Criteria for Adverse Events (CTCAE) Version 4.03 for Cohorts 1-9 and CTCAE Version 5.0 for Cohorts 10-13.

Treatment-emergent events began on or after the first dosing date up to 30 days after the last dosing date or led to premature discontinuation of study drug. The severity of laboratory abnormalities was assessed as Grade 0, 1 (mild), 2 (moderate), 3 (severe), or 4 (potentially life threatening) using the Common Terminology Criteria for Adverse Events (CTCAE), version 4.03.