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Completed

NCT Number: NCT05511558

A Study of the Absorption, Metabolism, and Excretion of [14C]-Fosgonimeton (ATH-1017)

This is a Phase 1, open-label, nonrandomized, single-dose human, absorption, metabolism, and excretion study of [14C]-Fosgonimeton

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Key information

Conditions

Age range

18 year–60 year

Sex eligibility

Male

Study type

Interventional

Phase

Phase 1

Primary location

Labcorp Clinical Research Unit

Madison, Wisconsin, 53704, United States

About this study

This is a Phase 1, open-label, nonrandomized, single-dose study, designed to evaluate the absorption, metabolism, and excretion of [14C]-Fosgonimeton. Healthy male subjects will receive a single subcutaneous dose of [14C]-Fosgonimeton.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Males, of any race, between 18 and 60 years of age, inclusive.
  • Body mass index between 18.0 and 32.0 kg/m2, inclusive.
  • In good health, determined by the investigator's discretion
  • Subjects and their partners will agree to use contraception during their participation
  • History of a minimum of 1 bowel movement per day.

Exclusion criteria

  • Significant history or clinical manifestation of any relevant, significant medical disorder, as determined by the investigator (or designee).
  • History of significant hypersensitivity, intolerance, or allergy to any drug compound, food, or other substance, unless approved by the investigator (or designee).
  • Positive hepatitis panel and/or positive human immunodeficiency virus test.
  • Use or intend to use any prescription medications/products within 14 days prior to check-in, unless deemed acceptable by the investigator (or designee).
  • Use or intend to use any nonprescription medications within 7 days prior to check-in, unless deemed acceptable by the investigator (or designee).
  • Participation in a clinical study involving administration of an investigational drug (new chemical entity) in the past 30 days or 5 half-lives (if known) prior to dosing.
  • Subjects who have participated in more than 3 radiolabeled drug studies in the last 12 months
  • Poor peripheral venous access.
  • Subjects with exposure to significant diagnostic or therapeutic radiation (e.g., serial x-ray, computed tomography scan, barium meal)

Treatment and study plan

[14C]-Fosgonimeton

Drug

Carbon-14 Radiolabeled Fosgonimeton

Other names: [14C]-ATH-1017

Primary outcomes

  1. Mass balance of total radioactivity from [14C]-Fosgonimeton

    Time frame: Samples collected pre-dose.

    Total radioactivity recovery (fet1-t2)

  2. Mass balance of total radioactivity from [14C]-Fosgonimeton

    Time frame: Samples collected up to 9 days post-dose.

    Total radioactivity recovery (fet1-t2)

  3. Routes/rates of elimination of [14C]-Fosgonimeton

    Time frame: Samples collected pre-dose.

    Total radioactivity recovery (fet1-t2) through routes of elimination (urine and feces).

  4. Routes/rates of elimination of [14C]-Fosgonimeton

    Time frame: Samples collected up to 9 days post-dose.

    Total radioactivity recovery (fet1-t2) through routes of elimination (urine and feces).

  5. Maximum observed plasma concentration (Cmax) of ATH-1017/ATH-1001

    Time frame: Samples collected pre-dose and at predetermined timepoints within 24 hours post-dose.

    Cmax will be determined from plasma samples.

  6. Time to maximum observed plasma concentration (Tmax) of ATH-1017/ATH-1001

    Time frame: Samples collected pre-dose and at predetermined timepoints within 24 hours post-dose.

    Tmax will be determined from plasma samples

  7. Area under the plasma concentration time curve (AUC) for of ATH-1017/ATH-1001

    Time frame: Samples collected pre-dose and at predetermined timepoints within 24 hours post-dose.

    AUC will be determined from plasma samples.

  8. Half-life (t1/2) of ATH-1017/ATH-1001

    Time frame: Samples collected pre-dose and at predetermined timepoints within 24 hours post-dose.

    t1/2 will be determined from plasma samples.

Secondary outcomes

  1. Quantitative metabolite profiles in plasma, urine, and feces after [14C]-Fosgonimeton administration

    Time frame: Samples collected pre-dose and at predetermined timepoints up to 9 days post-dose

    Quantification of ATH-1017 major metabolites in plasma and excreta.

  2. The chemical structure of major metabolites in plasma, urine, and feces after [14C]-Fosgonimeton administration

    Time frame: Samples collected pre-dose and at predetermined timepoints up to 9 days post-dose

    Identification of ATH-1017 major metabolites in plasma (>10% relative total drug-related exposure) and excreta (>10% of excreted dose)

  3. Incidence and severity of adverse events (safety and tolerability) of [14C]-Fosgonimeton when administered to healthy subjects

    Time frame: Samples collected pre-dose and at predetermined timepoints up to 17 days post-dose

    Incidence and severity of adverse events

Sponsors and collaborators

Lead sponsor

LeonaBio

Industry

Collaborators

  • Alturas Analytics, Inc.
  • Labcorp Corporation of America Holdings, Inc

Registry information

Official study title

A Phase 1, Open-label Study of the Absorption, Metabolism, and Excretion of [14C]-Fosgonimeton (ATH-1017) Following a Single Subcutaneous Dose in Healthy Male Subjects

Important dates

Study start
2022
Primary completion
2022
Study completion
2022
First posted
Aug 23, 2022
Registry last updated
Dec 22, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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