Current partner codePEPTIDESDE
NCT05989711·Phase 2·INTERVENTIONAL

IMPACT TRIAL: Efficacy and Safety of Pemvidutide in Subjects With Nonalcoholic Steatohepatitis (NASH)

Status

Completed

Phase

Phase 2

Enrollment

212

Locations

40

Results

Not posted

Publications

1

Study summary

What the protocol is testing.

Purpose of this study is to assess the effects of pemvidutide on NASH resolution and NASH fibrosis.

Full detailed description

A Phase 2, multi-center, double-blind, placebo-controlled study to evaluate the efficacy and safety of pemvidutide in NASH.

Interventions

Treatment arms and agents.

DRUG

Pemvidutide

Administered once weekly by subcutaneous injection

DRUG

Placebo

Administered once weekly by subcutaneous injection

Timeline

From registration to results.

  1. First posted

    Aug 14, 2023

  2. Study start

    Jul 27, 2023

  3. Primary completion

    Nov 25, 2025

  4. Study completion

    Nov 25, 2025

  5. Results posted

    Not reported

  6. Registry updated

    May 18, 2026

Outcomes

What the study measures.

Primary outcomes

Proportion of subjects achieving NASH resolution (NAFLD activity score [NAS], ballooning = 0; lobular inflammation = 0, 1) with at least a 2-point reduction in NAS without worsening of fibrosis

Time frame · 24 weeks

Proportion of subjects achieving at least 1 stage improvement in liver fibrosis without worsening of NASH (defined as no change in the NAS, ie, the sum score for ballooning, inflammation, and steatosis)

Time frame · 24 weeks

Incidence of Treatment Emergent Adverse Events

Time frame · 52 weeks

Secondary outcomes

Proportion of subjects achieving the composite of both NASH resolution and at least 1 stage improvement of liver fibrosis at 24 weeks

Time frame · 24 weeks

Relative change (%) in liver fat content by MRI-PDFF

Time frame · 24 weeks and 48 weeks

Absolute change in MRI-based corrected T1 (cT1) imaging

Time frame · 24 weeks and 48 weeks

Absolute change in alanine aminotransferase (ALT)

Time frame · 24 weeks and 48 weeks

Absolute change in Enhanced Liver Fibrosis (ELF) score

Time frame · 24 weeks and 48 weeks

Absolute change in Fibroscan-AST (FAST) score

Time frame · 24 weeks and 48 weeks

Relative (%) change in body weight

Time frame · 24 weeks and 48 weeks

Absolute changes in fasting lipids (total cholesterol, HDL cholesterol, LDL cholesterol, triglycerides)

Time frame · 24 weeks and 48 weeks

Change in HbA1c (%)

Time frame · 24 weeks and 48 weeks

Change in glucose (mg/dL)

Time frame · 24 weeks and 48 weeks

Eligibility

Who can take part.

Minimum age
18 Years
Maximum age
75 Years
Sex
ALL
Healthy volunteers
No

Inclusion Criteria: 1. Written informed consent 2. Male or female 18-75 years 3. Histologic diagnosis of NASH and/or histologic confirmation of NASH based on central pathology evaluation of a liver biopsy during screening 1. A histologic NAFLD Activity Score (NAS) ≥ 4 with a score of at least 1 on each subcomponent score based on central pathology evaluation (steatosis \[0-3\], lobular inflammation \[0-3\], and hepatocyte ballooning \[0-2\]) 2. NASH fibrosis stages 2 through 3 according to the NASH CRN fibrosis staging system based on central pathology evaluation 4. Subject agrees to have a liver biopsy performed during the screening period (if no biopsy within the preceding 6 months is available) and at 24 weeks of treatment 5. BMI ≥ 27.0 kg/m2 6. Subjects with Type 2 diabetes mellitus (T2D) should be on a stable treatment regimen for their T2D for at least 90 days prior to screening 7. Subject meets at least 3 of the 5 criteria of Metabolic Syndrome (American Heart Association 2005) 8. Liver fat content by MRI-PDFF ≥ 8% Exclusion Criteria: 1. Weight gain or loss \> 5% in the 3 months prior to randomization or \> 10% in the 6 months prior to screening 2. History or clinical evidence of Type 1 diabetes mellitus 3. Hemoglobin A1c (HbA1c) \> 9.5% or clinically significant persistent hyperglycemia 4. Liver conditions: 1. History of cirrhosis or complications of cirrhosis, including but not limited to variceal bleeding, encephalopathy, or ascites 2. Documented causes of chronic liver disease other than NASH 3. ALT or AST laboratory values \> 5 × ULN

Study locations

40 registered sites.

Australia · Puerto Rico · United States. Showing up to 24 locations stored in the fast local snapshot.

Altimmune Clinical Study Site

Chandler, Arizona, United States

Altimmune Clinical Study Site

Peoria, Arizona, United States

Altimmune Clinical Study Site

Tucson, Arizona, United States

Altimmune Clinial Study Site

Tucson, Arizona, United States

Altimmune Clinical Study Site

North Hollywood, California, United States

Altimmune Clinical Study Site

Panorama City, California, United States

Altimmune Clinical Study Site

Englewood, Colorado, United States

Altimmune Clinical Study Site

Bradenton, Florida, United States

Altimmune Clinical Study Site

Fort Myers, Florida, United States

Altimmune Clinical Study Site

Hialeah Gardens, Florida, United States

Altimmune Clinical Study Site

Miami Lakes, Florida, United States

Altimmune Clinical Study Site

Port Orange, Florida, United States

Altimmune Clinical Study Site

Sarasota, Florida, United States

Altimmune Clinical Study Site

West Palm Beach, Florida, United States

Altimmune Clinical Study Site

Dalton, Georgia, United States

Altimmune Clinical Study Site

Marietta, Georgia, United States

Altimmune Clinical Study Site

Bastrop, Louisiana, United States

Altimmune Clinical Study Site

Shreveport, Louisiana, United States

Altimmune Clinical Study Site

Clarksville, Tennessee, United States

Altimmune Clinical Study Site

Germantown, Tennessee, United States

Altimmune Clinical Study Site

Austin, Texas, United States

Altimmune Clinical Study Site

Bellaire, Texas, United States

Altimmune Clinical Study Site

Edinburg, Texas, United States

Altimmune Clinical Study Site

Edinburg, Texas, United States

Related trials

More studies on Pemvidutide.

Related PeptideStat pages

Put the record in context.

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