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CompletedNCT05341102Updated Apr 22, 2022

A Study of Single and Repeated Doses of LY3556050 in Healthy Participants

A Phase 1 interventional study of LY3556050 and Placebo in Healthy, sponsored by Eli Lilly and Company. Completed at 1 site in United States. Open to participants aged 18 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-04-22.

Sponsored by Eli Lilly and Company · Phase 1, Interventional, and Basic science

From the registry’s dates

  • Primary completion was Jun 2017, 9 years 4 months ago, and no results have been posted to the registry.
  • Registered 5 years 7 months after the study started (first participant enrolled Sep 2016, registered Apr 2022).
Phase
Phase 1
Study type
Interventional
Enrollment
106
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The main purpose of this study is to conduct blood tests to measure how much LY3556050 is in the bloodstream and to determine if any age, gender, or food effects exist. The study will also evaluate the safety of LY3556050. This is a 2-part study. In Part 1, single increasing doses of LY3556050 will be given orally and participants will be confined for a 5-day period. In Part 2, multiple increasing doses of LY3556050 will be given orally and participants will be confined for a 14-day period.

02

Conditions studied

  • Healthy
03

In context

Lead sponsor

Eli Lilly and Company is the lead sponsor of 2,048 studies on the registry; 140 are open to participants now.

Of its 521 completed or terminated interventional studies of FDA-regulated products, 341 (65%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Are overtly healthy as determined by medical evaluation.
  • Participants with a body mass index (BMI) of 18.0 to 35.0 kilograms per square meter (kg/m²) and have body weight of 50 kg or more.

Exclusion criteria

Exclusion Criteria:

  • Has any history of or active cardiac disease, including congestive heart failure, angina, any arrhythmia, or clinically significant findings on Electrocardiogram (ECG).
  • Has diabetes mellitus, acromegaly, clinically active thyroid disease, or other active endocrinopathy.
  • Has asthma or other severe respiratory disease.
  • Is pregnant, lactating, or planning a pregnancy.
  • Has active alcohol or substance abuse or history of alcohol or substance abuse within the 6 months prior to randomization.
  • Any abnormal laboratory finding or vital signs outside specified parameters.
05

Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Sequential assignment
Masking
Double (Participant, Investigator)
Enrollment
106 participants (actual)

Study arms

  • Experimental
    LY3556050 (Part 1)

    Participants will receive single ascending doses of LY3556050 orally.

    Drug: LY3556050

  • Experimental
    Placebo (Part 1)

    Participants will receive placebo orally.

    Drug: Placebo

  • Experimental
    LY3556050 (Part 2)

    Participants will receive multiple ascending doses of LY3556050 orally.

    Drug: LY3556050

  • Experimental
    Placebo (Part 2)

    Participants will receive placebo orally.

    Drug: Placebo

Interventions

  • DrugLY3556050

    Administered orally.

    Also known as: CNTX-0290

  • DrugPlacebo

    Administered orally.

06

What researchers measure

Primary outcomes

  1. Number of Participants with One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs) Considered by the Investigator to be Related to Study Drug Administration

    A summary of TEAEs, SAEs and other non-serious adverse events (AEs), regardless of causality, will be reported in the Reported Adverse Events module

    Time frame: Baseline through Day 30

  2. Pharmacokinetics (PK): Maximum Concentration (Cmax) of LY3556050 (Part 1)

    PK: Cmax of LY3556050 (Part 1)

    Time frame: Predose on day 1 until Day 3 (Cohorts 1 to 7), and Predose on Day 8 until Day 10 (Only for Cohort 7)

  3. PK: Area Under the Plasma Concentration Versus Time Curve From Zero to Infinity (AUC[0-∞]) of LY3556050 (Part 1)

    PK: AUC\[0-∞\] of LY3556050 (Part 1)

    Time frame: Predose on day 1 until Day 3 (Cohorts 1 to 7), and Predose on Day 8 until Day 10 (Only for Cohort 7)

  4. PK: Fraction of LY3556050 Excreted in 48-hour Urine (fe[0-48]) (Part 1)

    PK: fe\[0-48\] of LY3556050 (Part 1)

    Time frame: Predose on day 1 until Day 3 (Cohort 7), and Predose on Day 8 until Day 10 (Cohort 7)

  5. PK: Cmax of LY3556050 (Part 2)

    PK: Cmax of LY3556050 (Part 2)

    Time frame: Predose up to Postdose on Day 10

  6. PK: Area Under the Plasma Concentration Versus Time Curve From Zero to 24 Hours (AUC[0-24]) of LY3556050 (Part 2)

    PK: AUC\[0-24\] of LY3556050 (Part 2)

    Time frame: Predose up to Postdose on Day 10

07

Study locations

1 site
  • Medpace Clinical Pharmacology, LLC
    Cincinnati, Ohio 45227, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 22, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05341102
Lead sponsor
Eli Lilly and Company
Responsible party
Sponsor
First posted
Apr 22, 2022
Start date
Sep 14, 2016
Primary completion
Jun 2, 2017
Completion
Jun 2, 2017
Last update
Apr 22, 2022

Study contacts

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)
study director · Eli Lilly and Company

Oversight

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

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This study is completed, as verified in Apr 2022. You cannot join it, but the record below documents what was studied.

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