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Active, not recruiting Phase 3 Interventional

A Study of Retatrutide (LY3437943) in the Maintenance of Weight Reduction in Individuals With Obesity

ClinicalTrials.gov ID: NCT06859268

Public ClinicalTrials.gov record NCT06859268. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 18, 2026, 2:39 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3b, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate Retatrutide Treatment in the Maintenance of Weight Reduction in Individuals With Obesity

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is a study of retatrutide in participants with obesity. The main purpose is to learn more about how retatrutide maintains body weight loss. The study will have two treatment phases: an 80 week lead-in phase in which all participants will take retatrutide dose 1 and a 36 week randomized, double-blinded phase in which participants will either take retatrutide dose 1, retatrutide dose 2, or switch to placebo. Participation in the study will last around 125 weeks.

Study identification

NCT ID
NCT06859268
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 3
Lead sponsor
Eli Lilly and Company
Industry
Enrollment
643 participants

Conditions and interventions

Conditions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Mar 5, 2025 (Actual)
Primary completion
Apr 2028 (Estimated)
Completion
Apr 2028 (Estimated)
Last update posted
Mar 3, 2026

2025 – 2028

United States locations

U.S. sites
33
U.S. states
21
U.S. cities
33
Facility City State ZIP Site status
Southern California Clinical Research Santa Ana California 92701 —
University of Colorado Anschutz Medical Campus Aurora Colorado 80045 —
CMR of Greater New Haven, LLC Hamden Connecticut 06517 —
ALL Medical Research, LLC Cooper City Florida 33024 —
Florida International Medical Research Coral Gables Florida 33134 —
Renstar Medical Research Ocala Florida 34470 —
Charter Research - Winter Park Orlando Florida 32803 —
Metabolic Research Institute, Inc. West Palm Beach Florida 33401 —
Kubost Clinical Research - Marietta Marietta Georgia 30062 —
North Georgia Clinical Research Woodstock Georgia 30189 —
Pacific Diabetes & Endocrine Center Honolulu Hawaii 96817 —
Alliance for Multispecialty Research, LLC Oak Brook Illinois 60523 —
Springfield Clinic Main Campus Springfield Illinois 62703 —
Alliance for Multispecialty Research, LLC Lexington Kentucky 40509 —
L-MARC Research Center Louisville Kentucky 40213 —
Pennington Biomedical Research Center Baton Rouge Louisiana 70808 —
Care Access - Lake Charles (Bayou Pines) Lake Charles Louisiana 70601 —
Massachusetts General Hospital Boston Massachusetts 02114 —
Alliance for Multispecialty Research, LLC Kansas City Missouri 64114 —
Vector Clinical Trials Las Vegas Nevada 89128 —
Dent Neurosciences Research Center, Inc Amherst New York 14226 —
Carteret Medical Group Morehead City North Carolina 28557 —
Care Access - Raleigh Raleigh North Carolina 27607 —
Tekton Research, LLC. Moore Oklahoma 73160 —
Altoona Center For Clinical Research Duncansville Pennsylvania 16635 —
Care Access - Rapid City Rapid City South Dakota 57701 —
Alliance for Multispecialty Research, LLC Knoxville Tennessee 37909 —
Care Access - Houston Houston Texas 77054 —
Southern Endocrinology Associates Mesquite Texas 75149 —
Sleep Therapy Research Center San Antonio Texas 78229 —
National Clinical Research, Inc Richmond Virginia 23294 —
Northwest Clinical Research Center Bellevue Washington 98007 —
Central Washington Health Services Association d/b/a Confluence Health Wenatchee Washington 98801 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 20 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT06859268, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Mar 3, 2026 · Synced Oct 18, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT06859268 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →