Status:

RECRUITING

Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of PN-881 in Healthy Subjects.

Lead Sponsor:

Protagonist Therapeutics, Inc.

Conditions:

Healthy Volunteer

Eligibility:

All Genders

18-65 years

Phase:

PHASE1

Brief Summary

The goal of this study is to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of PN-881 in healthy adult participants.

Detailed Description

PN-881 will be administered in oral solution and tablet formulations, with dosing under fasting or fed conditions depending on the study part. The study consists of five parts: Part 1 - Single Ascen...

Eligibility Criteria

Inclusion

  • Healthy male and female participants of non-childbearing potential, aged 18-65 years inclusive
  • Body mass index (BMI) between 18 and 32 kg/m² (inclusive) at screening
  • Willing and able to comply with all study requirements and provide written informed consent
  • Male participants with female partners of childbearing potential must agree to use highly effective contraception during the study and for 90 days after the last dose

Exclusion

  • Clinically significant history or presence of cardiovascular, gastrointestinal, hepatic, renal, neurological, psychiatric, or allergic diseases
  • History of neoplastic disease (except adequately treated non-melanoma skin cancer)
  • Positive test for hepatitis B, hepatitis C, or HIV at screening
  • History of substance abuse or recreational IV drug use within the past 2 years
  • Clinically significant infection or fever (\>38°C) within 2 weeks prior to screening
  • Use of any prescription/non-prescription drugs or herbal supplements within 7 days or 5 half-lives before dosing (unless approved by investigator)
  • Supine blood pressure or ECG abnormalities outside protocol-defined ranges
  • Use of tobacco/nicotine products exceeding 5 cigarettes/day or 2 chews/day
  • Consumption of \>21 alcohol units/week (males) or \>14 units/week (females)

Key Trial Info

Start Date :

October 7 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

June 15 2026

Estimated Enrollment :

142 Patients enrolled

Trial Details

Trial ID

NCT07153146

Start Date

October 7 2025

End Date

June 15 2026

Last Update

December 16 2025

Active Locations (1)

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1

Nucleus Network

Melbourne, Victoria, Australia, 3004