Phase 1 Single and Multiple Ascending Dose of LTG-321 in Healthy Participants

Last updated: January 21, 2026
Sponsor: Latigo Biotherapeutics
Overall Status: Active - Recruiting

Phase

1

Condition

N/A

Treatment

LTG-321

Placebo

Clinical Study ID

NCT07110610
LTG-321-013
  • Ages 18-55
  • All Genders
  • Accepts Healthy Volunteers

Study Summary

This is a first-in-human, randomized, double-blind, placebo-controlled Phase 1 single ascending dose (SAD) and multiple ascending dose (MAD) study to evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of orally administered LTG-321 in healthy male and female participants 18 to 55 years of age. The study will be conducted in New Zealand.

The study also includes a randomized, double-blind, placebo-controlled, within-participant crossover evaluation of pain tolerance using a cold pressor test in healthy male participants 18 to 55 years of age. In addition, a randomized, open-label, crossover Food Effect cohort will evaluate the impact of a high-fat meal on the pharmacokinetics of LTG-321 following single oral doses in the fed and fasted state.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Male and female participants aged 18 to 55 years, inclusive, at the time of signingthe informed consent.

  • Overtly healthy with no clinically relevant abnormalities based on the medicalhistory, physical examinations, clinical laboratory evaluations, and 12-lead ECGthat, in the opinion of the investigator, would affect participant safety.

  • Body mass index (BMI) within the range of 18-30 kg/m2 (inclusive).

Exclusion

Exclusion Criteria:

  • Inability to take oral medications or gastrointestinal abnormalities potentiallyimpacting absorption.

  • Clinically significant cardiovascular, hematological, renal, hepatic, pulmonary,endocrine, gastrointestinal, immunological, dermatological, neurological, orpsychiatric disease which could interfere with, or the treatment for which mightinterfere with, the conduct of the study or which would, in the opinion of theinvestigator, unacceptably increase the participant's risk by participating in thestudy.

  • Past or current history or evidence of alcohol abuse and/or dependence onrecreational drug use

  • Donation of over 500 mL blood ≤ 3 months prior to start of participation

  • Participant is under legal custodianship.

Study Design

Total Participants: 236
Treatment Group(s): 2
Primary Treatment: LTG-321
Phase: 1
Study Start date:
September 03, 2025
Estimated Completion Date:
July 31, 2026

Connect with a study center

  • New Zealand Clinical Research

    Christchurch,
    New Zealand

    Site Not Available

  • New Zealand Clinical Research

    Christchurch 2192362,
    New Zealand

    Active - Recruiting

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