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Contact the study team using the details below to take part. If there are no contact details below please ask your doctor in the first instance.

Contact Information:

There may be multiple sites in this clinical trial. 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559
clinical_inquiry_hub@lilly.com


Study Location:

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Be Part of Research - Trial Details - A Study of Retatrutide (LY3437943) in the Maintenance of Weight Reduction in Individuals With Obesity

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

Medical Conditions

Obesity
Weight Loss


This information is provided directly by researchers, and we recognise that it isn't always easy to understand. We are working with researchers to improve the accessibility of this information. In some summaries, you may come across links to external websites. These websites will have more information to help you better understand the study.


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.

Start dates may differ between countries and research sites. The research team are responsible for keeping the information up-to-date.  

The recruitment start and end dates are as follows:

Mar 2025 Apr 2028

INTERVENTIONAL

Intervention Type : DRUG
Intervention Description : Administered SC

Intervention Arm Group : Retatrutide Dose 1;Retatrutide Dose 1 to Placebo;Retatrutide Dose 1 to Retatrutide Dose 2;

Intervention Type : DRUG
Intervention Description : Administered SC

Intervention Arm Group : Retatrutide Dose 1 to Placebo;



You can take part if:



You may not be able to take part if:


This is in the inclusion criteria above


Below are the locations for where you can take part in the trial. Please note that not all sites may be open.

  • The Adam Practice
    Poole
    BH16 5PW
  • Layton Medical Centre
    Blackpool
    Lancashire
    FY3 7EN
  • Oakenhurst Medical Practice
    Blackburn
    Lancashire
    BB2 1AX
  • Bradford on Avon Health Centre
    Bradford on Avon
    Wiltshire
    BA15 1DQ
  • Cheadle Community Hospital
    Cheadle
    Staffordshire
    ST10 1NS
  • FutureMeds - Birmingham
    Birmingham
    B21 9RY
  • FutureMeds - Liverpool
    Bromborough
    Wirral
    CH62 6EE
  • Rame Group Practice
    Torpoint
    Cornwall
    PL11 2TB
  • Atlantic Medical
    Penzance
    Cornwall
    TR18 3DX
  • St Bartholomew's Medical Centre
    Oxford
    England
    OX4 1XB
  • HMC Health Group - Meadows Centre for Health
    Hounslow
    London, City Of
    TW4 7NR
  • Woodstock Bower Surgery
    Rotherham
    S61 1AH

There may be multiple sites in this clinical trial. 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559
clinical_inquiry_hub@lilly.com



The study is sponsored by Eli Lilly and Company




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Read full details for Trial ID: NCT06859268
Last updated 28 July 2025

This page is to help you find out about a research study and if you may be able to take part

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