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CompletedNCT04972396Updated Jun 24, 2025

Pemvidutide (ALT-801) DDI Study in Healthy Volunteers

A Phase 1 interventional study of Pemvidutide and Metformin in NASH - Nonalcoholic Steatohepatitis, sponsored by Altimmune, Inc.. Completed at 2 sites in Australia. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-06-24.

Sponsored by Altimmune, Inc. · Phase 1, Interventional, and Other

From the registry’s dates

  • Primary completion was May 2022, 4 years 4 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

This is a Phase 1, open-label, drug-drug interaction (DDI) study of pemvidutide (ALT-801) under steady state conditions on concomitantly administered medications in healthy subjects. The study will evaluate the effect of pemvidutide on the pharmacokinetics (PK) of metformin, warfarin, atorvastatin, digoxin, and the combined oral contraceptive (COC) ethinylestradiol/levonorgestrel. The study will be conducted in 3 parts, as described below. Each part will have 2 periods in a fixed sequence, where the first period is without pemvidutide administration and the second is with pemvidutide at steady state.

02

Conditions studied

  • NASH - Nonalcoholic Steatohepatitis

Keywords

  • NASH
03

In context

Non-alcoholic Fatty Liver Disease

1,474 studies on the registry are indexed under Non-alcoholic Fatty Liver Disease; 303 are open to participants now.

This study's enrollment of 40 is below the median of 60 across 1,072 interventional studies indexed under Non-alcoholic Fatty Liver Disease.

Browse Non-alcoholic Fatty Liver Disease studies →

Lead sponsor

Altimmune, Inc. is the lead sponsor of 19 studies on the registry; 1 is open to participants now.

Of its 13 completed or terminated interventional studies of FDA-regulated products, 4 (31%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Male or female healthy volunteers, age 18 to 55 years, inclusive
  • Body mass index (BMI) 28.0- 40.0 kg/m2
  • Able and willing to provide written informed consent prior to entry into the study

Exclusion criteria

Exclusion Criteria:

  • Women who are pregnant or breastfeeding
  • History of diabetes or use of medications for the treatment of diabetes, or hyperglycemia or HbA1c ≥ 6.5%
  • History of pancreatitis or hypersensitivity reaction to GLP-1 analogues
05

Study design

Phase
Phase 1
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
40 participants (actual)

Study arms

  • Experimental
    Part 1 Metformin and Atorvastatin with and without Pemvidutide

    In Period 1, subjects received metformin 500 mg BID on Days 1 and 2, single doses of metformin 500 mg and atorvastatin 40 mg on Day 3, and a single dose of pemvidutide 0.6 mg on Day 8. In Period 2, subjects received single doses of pemvidutide1.2 mg on Day 15 and 1.8 mg on Days 22 and 29, metformin 500 mg BID on Days 34 and 35, and pemvidutide 1.8 mg on Day 36 immediately followed by oral metformin 500 mg and atorvastatin 40 mg.

    Drug: Pemvidutide · Drug: Metformin · Drug: Atorvastatin

  • Experimental
    Part 2 Warfarin and Digoxin with and without Pemvidutide

    In Period 1, subjects received single doses of warfarin 10 mg and digoxin 500 mcg (0.5 mg) on Day 1, and a single dose of pemvidutide 0.6 mg on Day 8. In Period 2, subjects received single doses of pemvidutide 1.2 mg on Day 15 and 1.8 mg on Days 22 and 29, and pemvidutide1.8 mg immediately followed by warfarin 10 mg and digoxin 500 mcg (0.5 mg) on Day 36.

    Drug: Pemvidutide · Drug: Warfarin · Drug: Digoxin

  • Experimental
    Part 3 Ethinylestradiol and Levonorgestrel with and without Pemvidutide

    In Period 1, subjects received a combined oral contraceptive (COC) consisting of 0.03 mg ethinylestradiol and 0.15 mg levonorgestrel once daily on Days 1 through 9 and a single dose of pemvidutide 0.6 mg on Day 15. In Period 2, subjects received single doses of pemvidutide 1.2 mg on Day 22 and 1.8 mg on Days 29 and 36. Subjects also received COC once daily on Days 35 through 42 and a single dose of pemvidutide 1.8 mg followed immediately by a single dose of COC on Day 43.

    Drug: Pemvidutide · Drug: Ethinylestradiol and Levonorgestrel

Interventions

  • DrugPemvidutide

    Injected subcutaneously (SC)

    Also known as: ALT-801

  • DrugMetformin

    Taken by mouth (PO)

  • DrugAtorvastatin

    Taken by mouth (PO)

  • DrugWarfarin

    Taken by mouth (PO)

  • DrugDigoxin

    Taken by mouth (PO)

  • DrugEthinylestradiol and Levonorgestrel

    Taken by mouth (PO)

06

What researchers measure

Primary outcomes

  1. Area Under the Plasma Concentration Versus Time Curve (AUC) of metformin and atorvastatin/warfarin and digoxin in presence of steady state ALT-801

    Time frame: Baseline and Day 36

  2. Area Under the Plasma Concentration Versus Time Curve (AUC) of ethinylestradiol and levonorgestrel in presence of steady state ALT-801

    Time frame: Baseline and Day 43

Secondary outcomes

  1. Cmax and Tmax of metformin and atorvastatin/warfarin and digoxin

    Time frame: Day 36

  2. Cmax and Tmax of ethinylestradiol and levonorgestrel

    Time frame: Day 43

  3. The Number of Participants with One or More Treatment-Emergent Adverse Events (TEAEs)

    Time frame: Up to Day 77

07

Study locations

2 sites
  • CMAX Clinical Research
    Adelaide, South Australia, Australia
  • Nucleus Network
    Brisbane, Australia
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 24, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04972396
Lead sponsor
Altimmune, Inc.
Responsible party
Sponsor
First posted
Jul 22, 2021
Start date
Sep 15, 2021
Primary completion
May 15, 2022
Completion
May 15, 2022
Last update
Jun 24, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2025. You cannot join it, but the record below documents what was studied.

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