A Phase I Study of LY3502970 in Healthy Participants

April 30, 2026 updated by: Eli Lilly and Company

A Single-Group, Open-Label, Single-Period, Phase 1 Study to Determine the Absolute Bioavailability of LY3502970 in Healthy Participants

The main purpose of this study is to evaluate how much of the study drug (LY3502970) and the radioactive substance 14C incorporated LY3502970 gets into the bloodstream, how its broken down, and how long it takes the body to get rid of it. The study will last up to approximately 9 weeks for each participant.

Study Overview

Status

Completed

Conditions

Study Type

Interventional

Enrollment (Actual)

10

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Wisconsin
      • Madison, Wisconsin, United States, 53704
        • Covance Clinical Research Inc

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Are overtly healthy as determined by medical evaluation
  • Participants with body weight of 45 kilograms (kg) or more and body mass index within the range 18.5 to 35.0 kilograms per meter squared (kg/m²), inclusive
  • Males who agree to use highly effective or effective methods of contraception and women not of childbearing potential may participate in this study

Exclusion Criteria:

  • Participants who have known allergies to LY3502970, related compounds, or any components of the formulation
  • Women who are lactating and women of child bearing potential (WOCBP) are excluded from the study
  • Participants who regularly use known drugs of abuse or show positive findings on drug screen

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: LY3502970 + [14C]-LY3502970
Participants received a single oral dose of 1 milligram (mg) LY3502970 followed six hours later by an intravenous (IV) dose of approximately 21 microgram (μg) of LY3502970 radiolabeled with carbon-14 ([14C]-LY3502970) containing approximately 800 nanocurie (nCi) radioactivity.
Administered orally
Administered IV

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Pharmacokinetics (PK): Absolute Bioavailability of LY3502970
Time Frame: Pre-oral dose, 0.5, 1, 2, 4, 6, 6.5, 7, 8, 10, 12, 16, 24, 36, 48, 72, 96, 120 hours post-oral dose; 0 (immediately after IV dosing), 2, 5, 10, 15 minutes and 0.5, 1, 2, 4, 6, 10, 18, 30, 42, 66, 90, 114, 138, 162, 186 hours post-IV dose.
Absolute bioavailability of LY3502970, expressed in percentage, was estimated using the AUC(0-∞) values from each individual participant based on IV dosed [14C]-LY3502970 compared to oral dosed LY3502970, using formula: [AUC0-∞(oral) x Dose (IV) divided by AUC0-∞(IV) x Dose (oral)] x100. The sampling time points from pre-oral dose through 186 hours post-IV dose were used to assess this outcome.
Pre-oral dose, 0.5, 1, 2, 4, 6, 6.5, 7, 8, 10, 12, 16, 24, 36, 48, 72, 96, 120 hours post-oral dose; 0 (immediately after IV dosing), 2, 5, 10, 15 minutes and 0.5, 1, 2, 4, 6, 10, 18, 30, 42, 66, 90, 114, 138, 162, 186 hours post-IV dose.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
PK: Area Under the Curve Concentration Versus Time Curve From Zero to Infinity (AUC [0-∞]) of Total Radioactivity in Plasma
Time Frame: 0 (immediately after IV dosing), 2, 5, 10, 15 minutes and 0.5, 1, 2, 4, 6, 10, 18, 30, 42, 66, 90, 114, 138 hours post-IV dose
PK: AUC [0-∞] of Total Radioactivity in Plasma.
0 (immediately after IV dosing), 2, 5, 10, 15 minutes and 0.5, 1, 2, 4, 6, 10, 18, 30, 42, 66, 90, 114, 138 hours post-IV dose
PK: AUC [0-∞] of [14C]-LY3502970 in Plasma
Time Frame: 0 (immediately after IV dosing), 2, 5, 10, 15 minutes and 0.5, 1, 2, 4, 6, 10, 18, 30, 42, 66, 90, 114, 138, 162, 186 hours post-IV dose
PK: AUC [0-∞] of [14C]-LY3502970 in Plasma.
0 (immediately after IV dosing), 2, 5, 10, 15 minutes and 0.5, 1, 2, 4, 6, 10, 18, 30, 42, 66, 90, 114, 138, 162, 186 hours post-IV dose
PK: AUC [0-∞] of LY3502970 in Plasma
Time Frame: Pre-oral dose, 0.5, 1, 2, 4, 6, 6.5, 7, 8, 10, 12, 16, 24, 36, 48, 72, 96, 120 hours post-oral dose
PK: AUC [0-∞] of LY3502970 in Plasma.
Pre-oral dose, 0.5, 1, 2, 4, 6, 6.5, 7, 8, 10, 12, 16, 24, 36, 48, 72, 96, 120 hours post-oral dose
PK: Maximum Concentration (Cmax) of Total Radioactivity in Plasma
Time Frame: 0 (immediately after IV dosing), 2, 5, 10, 15 minutes and 0.5, 1, 2, 4, 6, 10, 18, 30, 42, 66, 90, 114, 138 hours post-IV dose
PK: Cmax of Total Radioactivity in Plasma.
0 (immediately after IV dosing), 2, 5, 10, 15 minutes and 0.5, 1, 2, 4, 6, 10, 18, 30, 42, 66, 90, 114, 138 hours post-IV dose
PK: Cmax of [14C]-LY3502970 in Plasma
Time Frame: 0 (immediately after IV dosing), 2, 5, 10, 15 minutes and 0.5, 1, 2, 4, 6, 10, 18, 30, 42, 66, 90, 114, 138, 162, 186 hours post-IV dose
PK: Cmax of [14C]-LY3502970 in Plasma.
0 (immediately after IV dosing), 2, 5, 10, 15 minutes and 0.5, 1, 2, 4, 6, 10, 18, 30, 42, 66, 90, 114, 138, 162, 186 hours post-IV dose
PK: Cmax of LY3502970 in Plasma
Time Frame: Pre-oral dose, 0.5, 1, 2, 4, 6, 6.5, 7, 8, 10, 12, 16, 24, 36, 48, 72, 96, 120 hours post-oral dose
PK: Cmax of LY3502970 in Plasma.
Pre-oral dose, 0.5, 1, 2, 4, 6, 6.5, 7, 8, 10, 12, 16, 24, 36, 48, 72, 96, 120 hours post-oral dose

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Director: Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 9 AM - 5 PM Eastern time (UTC/GMT - 5 hours, EST), Eli Lilly and Company

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 19, 2023

Primary Completion (Actual)

January 5, 2024

Study Completion (Actual)

January 5, 2024

Study Registration Dates

First Submitted

October 10, 2023

First Submitted That Met QC Criteria

October 10, 2023

First Posted (Actual)

October 17, 2023

Study Record Updates

Last Update Posted (Actual)

May 27, 2026

Last Update Submitted That Met QC Criteria

April 30, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 18596
  • J2A-MC-GZGO (Other Identifier: Eli Lilly and Company)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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