Safety evaluation of OA-235i for nonalcoholic steatohepatitis

A Phase 1a/1b Single Ascending and Multiple Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of OA-235i, a PAR2 Inhibitor, in Adults With Nonalcoholic Steatohepatitis

Phase 1 Interventional Oasis Pharmaceuticals, LLC · NCT05680233

This study is testing a new medication called OA-235i to see if it's safe for people with nonalcoholic steatohepatitis or fatty liver disease.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment23 (estimated)
Ages18 Years to 70 Years
SexAll
SponsorOasis Pharmaceuticals, LLC Industry-sponsored
Locations1 site (Rochester, Minnesota)
Trial IDNCT05680233 on ClinicalTrials.gov

What this trial studies

This Phase 1 study aims to assess the safety, tolerability, pharmacokinetics, and pharmacodynamics of OA-235i in individuals diagnosed with nonalcoholic steatohepatitis (NASH) or noncirrhotic nonalcoholic fatty liver disease (NAFLD). Participants will receive a single ascending dose of the medication, with up to five cohorts involved in the dose escalation. The study will also include a multiple dose expansion cohort for further evaluation. The goal is to determine the safety profile of OA-235i in this patient population.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 70 with a diagnosis of noncirrhotic NAFLD/NASH and a BMI between 25 and 40.

Not a fit: Patients with advanced hepatic fibrosis or those outside the specified age and BMI range may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to a new treatment option for patients suffering from nonalcoholic steatohepatitis.

How similar studies have performed: Other studies have shown promise in targeting nonalcoholic fatty liver disease, but this specific approach with OA-235i is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Main Inclusion Criteria:

1. Male and female subjects between the ages of 18 and 70 years, inclusive, at Screening.
2. Body mass index (BMI) of ≥25 and \<40 kg/m2 with a total body weight 50-150 kg (inclusive) at Screening and Day 1 Pre-dose.
3. Suspected or confirmed diagnosis of noncirrhotic NAFLD/NASH without advanced hepatic fibrosis by one of the following:

   1. Histologically with liver biopsy within 2 years prior to Screening (documentation with pathology report); or
   2. Radiologically with ≥5% steatosis measured by magnetic resonance imaging-derived proton density fat fraction (MRI-PDFF), or controlled attenuation parameter (CAP) \>288 dB/m via FibroScan assessment, or presence of hepatic steatosis on abdominal ultrasound within 1 year prior to Screening; or
   3. Clinically with a diagnosis of Metabolic Syndrome (MetS) reflecting the presence of at least 3 of 5 factors/criteria (ie, abdominal obesity, elevated triglycerides, reduced HDL-C, elevated blood pressure, and/or elevated fasting glucose \[IFG or type 2 diabetes mellitus\]) as defined by the National Cholesterol Education Program's Adult Treatment Panel III (NCEP ATP III) \[Grundy 2005\]; and fatty liver on imaging within 1 year prior to Screening.

Key Exclusion Criteria:

1. History or presence of cirrhosis as assessed by Investigator following review of diagnostic measures (clinical, imaging, histopathology, or laboratory).
2. Clinical evidence of hepatic decompensation (laboratory or clinical abnormalities- ascites, variceal bleeding, etc.).
3. History or presence of other concomitant liver disease (eg, hepatitis B \& C, alcoholic liver disease, autoimmune liver disease, primary biliary cirrhosis, primary sclerosing cholangitis, hemochromatosis, Wilson's disease, alpha-1 antitrypsin (A1AT) deficiency, bile duct obstruction, liver primary or metastatic cancer, drug-induced liver disease.

Where this trial is running

Rochester, Minnesota

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Nonalcoholic SteatohepatitisNonalcoholic Fatty Liver
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.