NCT05882045CompletedPhase 3
A Study of Retatrutide (LY3437943) in Participants With Obesity and Cardiovascular Disease
A Randomized, Double-Blind, Phase 3 Study to Investigate the Efficacy and Safety of LY3437943 Once Weekly Compared to Placebo in Participants With Severe Obesity and Established Cardiovascular Disease
Source: ClinicalTrials.gov · Last updated 30 Jul 2026
Brief summary (registry, in English)
The main purpose of this study is to evaluate the efficacy and safety of retatrutide once weekly in participants with obesity and established cardiovascular disease (CVD). The study will last about 113 weeks.
- Status (registry)
- Completed
- Phase (registry)
- Phase 3
- Study type
- Interventional
- Enrollment
- 1946 (actual)
- First submitted
- 22 May 2023
- Start date
- 30 May 2023
- Primary completion date
- 16 Apr 2026
- Lead sponsor
- Eli Lilly and Company
- Diseases
- Obesity
- NCT number
- NCT05882045
- EU CT number
- 2023-503659-88-00
What you commit to
- Study type: Interventional · Phase 3
- Participants enrolled: 1946
- From 30 May 2023 to the primary completion date, 16 Apr 2026
- 170 sites in 10 countries
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Have had acute myocardial infarction, stroke, coronary revascularization, hospitalization for unstable angina, or hospitalization due to congestive heart failure within 90 days prior to screening.
- Have taken weight loss drugs, including over-the-counter medications, within 90 days prior to screening.
- Have a prior or planned surgical treatment of obesity.
- Have a change in body weight greater than 5 kg (11 pounds) within 90 days prior to screening.
Other illness
- Have Type 1 diabetes.
- Have family or personal history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia syndrome type 2 (MEN-2)
Other
- Have had pancreatitis.
Who the study is looking for
- Have a body mass index (BMI) ≥35.0 kilogram/square meter (kg/m²).
- Have established cardiovascular (CV) disease with at least 1 of the following:
- prior myocardial infarction
- prior ischemic or hemorrhagic stroke, or
- symptomatic peripheral arterial disease
- Have a history of at least 1 self-reported unsuccessful dietary effort to reduce body weight.
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (170)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Consultorio de Investigación Clínica EMO SRL Coordinator of this site? Confirm its status | Buenos Aires | Argentina | Unknown status |
| Fundacion Respirar Coordinator of this site? Confirm its status | Buenos Aires | Argentina | Unknown status |
| Stat Research S.A. Coordinator of this site? Confirm its status | Buenos Aires | Argentina | Unknown status |
| Centro Médico Viamonte Coordinator of this site? Confirm its status | Buenos Aires | Argentina | Unknown status |
| Investigaciones Medicas Imoba Srl Coordinator of this site? Confirm its status | Buenos Aires | Argentina | Unknown status |
| Centro Medico Dra. Laura Maffei- Investigacion Clinica Aplicada Coordinator of this site? Confirm its status | Buenos Aires | Argentina | Unknown status |
| CEDIC Coordinator of this site? Confirm its status | CABA | Argentina | Unknown status |
| Centro Medico Privado CEMAIC Coordinator of this site? Confirm its status | Capital | Argentina | Unknown status |
| Centro de Investigaciones Metabólicas (CINME) Coordinator of this site? Confirm its status | Ciudad Autónoma de Buenos Aires | Argentina | Unknown status |
| IDIM - Instituto de Investigaciones Metabólicas Coordinator of this site? Confirm its status | Ciudad de Buenos Aires | Argentina | Unknown status |
| Centro Medico Privado San Vicente Diabetes Coordinator of this site? Confirm its status | Córdoba | Argentina | Unknown status |
| Instituto Médico DAMIC Coordinator of this site? Confirm its status | Córdoba | Argentina | Unknown status |
| MICA - Medicina e Investigación Cardiometabólica Coordinator of this site? Confirm its status | Del Viso | Argentina | Unknown status |
| CIPADI - Centro Integral de Prevencion y Atencion en Diabetes Coordinator of this site? Confirm its status | Godoy Cruz | Argentina | Unknown status |
| Centro de Investigaciones Clínicas Baigorria Coordinator of this site? Confirm its status | Granadero Baigorria | Argentina | Unknown status |
| Instituto de Investigaciones Clinicas Mar del Plata Coordinator of this site? Confirm its status | Mar del Plata | Argentina | Unknown status |
| DIM Clínica Privada Coordinator of this site? Confirm its status | Ramos Mejía | Argentina | Unknown status |
| Instituto de Investigaciones Clinicas Rosario Coordinator of this site? Confirm its status | Rosario | Argentina | Unknown status |
| INECO Neurociencias Oroño Coordinator of this site? Confirm its status | Rosario | Argentina | Unknown status |
| Centro de Investigaciones Médicas Tucuman Coordinator of this site? Confirm its status | SAN M. de Tucuman | Argentina | Unknown status |
| Centro de Investigaciones Clinicas del Litoral Coordinator of this site? Confirm its status | Santa Fe | Argentina | Unknown status |
| Centro de Salud e Investigaciones Médicas Coordinator of this site? Confirm its status | Santa Rosa | Argentina | Unknown status |
| Sanatorio Norte Coordinator of this site? Confirm its status | Santiago del Estero | Argentina | Unknown status |
| Sanatorio San Martin Coordinator of this site? Confirm its status | Venado Tuerto | Argentina | Unknown status |
| Nightingale Research Coordinator of this site? Confirm its status | Adelaide | Australia | Unknown status |
| Fusion Clinical Research Coordinator of this site? Confirm its status | Adelaide | Australia | Unknown status |
| Emeritus Research Coordinator of this site? Confirm its status | Botany | Australia | Unknown status |
| Box Hill Hospital Coordinator of this site? Confirm its status | Box Hill | Australia | Unknown status |
| Core Research Group Coordinator of this site? Confirm its status | Brisbane | Australia | Unknown status |
| Royal Brisbane and Women's Hospital Coordinator of this site? Confirm its status | Brisbane | Australia | Unknown status |
| Northern Beaches Clinical Research Coordinator of this site? Confirm its status | Brookvale | Australia | Unknown status |
| Emeritus Research Coordinator of this site? Confirm its status | Camberwell | Australia | Unknown status |
| Camden Hospital Coordinator of this site? Confirm its status | Camden | Australia | Unknown status |
| Canberra Hospital Coordinator of this site? Confirm its status | Canberra | Australia | Unknown status |
| Barwon Health Coordinator of this site? Confirm its status | Geelong | Australia | Unknown status |
| Austin Health - Repatriation Hospital Coordinator of this site? Confirm its status | Heidelberg West | Australia | Unknown status |
| CDH Research Institute Coordinator of this site? Confirm its status | Maroochydore | Australia | Unknown status |
| Logan Hospital Coordinator of this site? Confirm its status | Meadowbrook | Australia | Unknown status |
| The AIM Centre / Hunter Diabetes Centre Coordinator of this site? Confirm its status | Merewether | Australia | Unknown status |
| Southern Adelaide Diabetes & Endocrine Services Coordinator of this site? Confirm its status | Mount Gambier | Australia | Unknown status |
| One Clinical Research Coordinator of this site? Confirm its status | Nedlands | Australia | Unknown status |
| Southern Adelaide Diabetes & Endocrine Services Coordinator of this site? Confirm its status | Oaklands Park | Australia | Unknown status |
| University of Sydney - Charles Perkins Centre Coordinator of this site? Confirm its status | Sydney | Australia | Unknown status |
| Joanne F. Liutkus Medicine Professional Corporation Coordinator of this site? Confirm its status | Cambridge | Canada | Unknown status |
| Ecogene-21 Coordinator of this site? Confirm its status | Chicoutimi | Canada | Unknown status |
| Ecogene-21 - Cmas Coordinator of this site? Confirm its status | Chicoutimi | Canada | Unknown status |
| LMC Clinical Research Inc. (Thornhill) Coordinator of this site? Confirm its status | Concord | Canada | Unknown status |
| Dr. Steven V. Zizzo Research Professional Corporation Coordinator of this site? Confirm its status | Hamilton | Canada | Unknown status |
| Milestone Research Inc. Coordinator of this site? Confirm its status | London | Canada | Unknown status |
| Clinique de médecine Urbaine du Quartier Latin Coordinator of this site? Confirm its status | Montreal | Canada | Unknown status |
| North York Diagnostic and Cardiac Centre Coordinator of this site? Confirm its status | North York | Canada | Unknown status |
| Centricity Research Oshawa Coordinator of this site? Confirm its status | Oshawa | Canada | Unknown status |
| Kawartha Cardiology Clinical Trials Coordinator of this site? Confirm its status | Peterborough | Canada | Unknown status |
| Syneos Health Coordinator of this site? Confirm its status | Québec | Canada | Unknown status |
| CardioVasc HR Inc. Coordinator of this site? Confirm its status | Saint-Jean-sur-Richelieu | Canada | Unknown status |
| Centre de Medecine Metabolique de Lanaudiere (CMML) Coordinator of this site? Confirm its status | Terrebonne | Canada | Unknown status |
| Manna Research (Toronto) Coordinator of this site? Confirm its status | Toronto | Canada | Unknown status |
| C.I.C. Mauricie inc. Coordinator of this site? Confirm its status | Trois-Rivières | Canada | Unknown status |
| BC Diabetes Office Coordinator of this site? Confirm its status | Vancouver | Canada | Unknown status |
| Discovery Clinical Services Coordinator of this site? Confirm its status | Victoria | Canada | Unknown status |
| Hospital Universitario de La Ribera Coordinator of this site? Confirm its status | Alzira | Spain | Completed |
| Hospital Universitari Vall d'Hebron Coordinator of this site? Confirm its status | Barcelona | Spain | Completed |
| Hospital Nisa Sevilla Aljarafe Coordinator of this site? Confirm its status | Castilleja De La Cuesta | Spain | Completed |
| Hospital Universitario Reina Sofia Coordinator of this site? Confirm its status | Córdoba | Spain | Completed |
| Area Sanitaria De Ferrol Coordinator of this site? Confirm its status | Ferrol | Spain | Completed |
| Hospital Universitari Arnau De Vilanova De La Gerencia Territorial De Lleida Coordinator of this site? Confirm its status | Lleida | Spain | Completed |
| Hospital General Universitario Gregorio Marañón Coordinator of this site? Confirm its status | Madrid | Spain | Completed |
| Hospital Universitario Virgen de la Victoria Coordinator of this site? Confirm its status | Málaga | Spain | Completed |
| University Hospital Son Espases Coordinator of this site? Confirm its status | Palma | Spain | Completed |
| Hospital Virgen del Camino Coordinator of this site? Confirm its status | Sanlúcar de Barrameda | Spain | Completed |
| Hospital Universitario Marqués de Valdecilla Coordinator of this site? Confirm its status | Santander | Spain | Completed |
| University Hospital Virgen Del Rocio S.L. Coordinator of this site? Confirm its status | Sevilla | Spain | Completed |
| Hospital Quironsalud Infanta Luisa Coordinator of this site? Confirm its status | Sevilla | Spain | Completed |
| Hospital Virgen de las Montañas Coordinator of this site? Confirm its status | Villamartín | Spain | Completed |
| DRC Kft. Coordinator of this site? Confirm its status | Balatonfüred | Hungary | Completed |
| Obudai Egeszsegugyi Centrum Kft. Coordinator of this site? Confirm its status | Budapest III | Hungary | Completed |
| Clindiab Kft. Coordinator of this site? Confirm its status | Budapest XVIII | Hungary | Completed |
| Trantor 99 Bt. Coordinator of this site? Confirm its status | Budapest XXI | Hungary | Completed |
| University of Debrecen Coordinator of this site? Confirm its status | Debrecen | Hungary | Completed |
| Obudai Egeszsegugyi Centrum Kft Coordinator of this site? Confirm its status | Kaposvár | Hungary | Completed |
| Medifarma-98 Kft. Coordinator of this site? Confirm its status | Nyíregyháza | Hungary | Completed |
| Szent Lazar Megyei Korhaz Coordinator of this site? Confirm its status | Salgotarjan | Hungary | Completed |
| University of Szeged Coordinator of this site? Confirm its status | Szeged | Hungary | Completed |
| Regia Med Kft Coordinator of this site? Confirm its status | Székesfehérvár | Hungary | Completed |
| Zala Megyei Szent Rafael Korhaz Coordinator of this site? Confirm its status | Zalaegerszeg | Hungary | Completed |
| Obudai Egeszsegugyi Centrum Kft Coordinator of this site? Confirm its status | Zalaegerszeg | Hungary | Completed |
| Investigacion En Salud Y Metabolismo S.C / Nutricion Clinica / Unidad de Base de Datos Coordinator of this site? Confirm its status | Chihuahua City | Mexico | Unknown status |
| Lahoja. Asociacion Para La Investigacion Y La Farmacovigilancia Coordinator of this site? Confirm its status | Durango | Mexico | Unknown status |
| Unidad de Investigación Clinica y atencion Medica HEPA Coordinator of this site? Confirm its status | Guadalajara | Mexico | Unknown status |
| Medical Care and Research Sa de Cv Coordinator of this site? Confirm its status | Mérida | Mexico | Unknown status |
| Eme Red Hospitalaria Coordinator of this site? Confirm its status | Mérida | Mexico | Unknown status |
| Centro Especializado En Diabetes, Obesidad Y Prevencion De Enfermedades Cardiovasculares Coordinator of this site? Confirm its status | Mexico City | Mexico | Unknown status |
| RM Pharma Specialists Coordinator of this site? Confirm its status | Mexico City | Mexico | Unknown status |
| Hospital Universitario Dr. Jose Eleuterio González Coordinator of this site? Confirm its status | Monterrey | Mexico | Unknown status |
| IMED Internal Medicine Clin Trials Coordinator of this site? Confirm its status | Monterrey | Mexico | Unknown status |
| Clínica García Flores SC Coordinator of this site? Confirm its status | Monterrey | Mexico | Unknown status |
| Eukarya PharmaSite Coordinator of this site? Confirm its status | Monterrey | Mexico | Unknown status |
| Centro Multidisciplinario de Diabetes de Pachuca Coordinator of this site? Confirm its status | Pachuca | Mexico | Unknown status |
| Centro de Atención e Investigación Cardiovascular del Potosí Coordinator of this site? Confirm its status | San Luis Potosí City | Mexico | Unknown status |
| Centro de Investigacion Cardiovascular y Metabólica Coordinator of this site? Confirm its status | Tijuana | Mexico | Unknown status |
| FAICIC S. de R.L. de C.V. Coordinator of this site? Confirm its status | Veracruz | Mexico | Unknown status |
| Centro de Investigacion Medica de Occidente, S.C. Coordinator of this site? Confirm its status | Zapopan | Mexico | Unknown status |
| RST Rehabilitacja Coordinator of this site? Confirm its status | Bialy Kosciol, Małopolskie | Poland | Completed |
| Klimed MK Sp. z o.o. Coordinator of this site? Confirm its status | Bialystok | Poland | Completed |
| Medyczne Centrum Diabetologiczno-Endokrynologiczno-Metaboliczne Diab-Endo-Met Sp. z o.o. Coordinator of this site? Confirm its status | Cracow | Poland | Completed |
| Ambulatorium Sp. z o.o. Coordinator of this site? Confirm its status | Elblag | Poland | Completed |
| Centrum Badan Klinicznych PI-House sp. z o.o. Coordinator of this site? Confirm its status | Gdansk | Poland | Completed |
| Salvia Lekston I Madej Sp. J. Coordinator of this site? Confirm its status | Katowice | Poland | Completed |
| Pratia S.A. Coordinator of this site? Confirm its status | Katowice | Poland | Completed |
| Centrum Terapii Wspolczesnej J.M. Jasnorzewska S.K.A. Coordinator of this site? Confirm its status | Lodz | Poland | Completed |
| NBR Polska Coordinator of this site? Confirm its status | Mazowieckie | Poland | Completed |
| Samodzielny Publiczny Szpital Kliniczny Nr 1 Im.Prof.Stanislawa Szyszko Slaskiego Uniwersytetu Medycznego W Katowicach Coordinator of this site? Confirm its status | Zabrze | Poland | Completed |
| Clinical Research Management Group Inc Coordinator of this site? Confirm its status | Ponce | Puerto Rico | Unknown status |
| Ponce Medical School Foundation Inc. Coordinator of this site? Confirm its status | Ponce | Puerto Rico | Unknown status |
| Latin Clinical Trial Center Coordinator of this site? Confirm its status | San Juan | Puerto Rico | Unknown status |
| MediTask, s.r.o Coordinator of this site? Confirm its status | Bratislava | Slovakia | Completed |
| Diabint s.r.o. Coordinator of this site? Confirm its status | Bytca | Slovakia | Completed |
| Human-Care s.r.o. Coordinator of this site? Confirm its status | Kosice 1 | Slovakia | Completed |
| Vseobecna Nemocnica S Poliklinikou n.o. Coordinator of this site? Confirm its status | Lucenec | Slovakia | Completed |
| MediVet s.r.o. Coordinator of this site? Confirm its status | Malacky | Slovakia | Completed |
| Tatratrial s.r.o. Coordinator of this site? Confirm its status | Rožňava | Slovakia | Completed |
| MEDI-DIA s.r.o. Coordinator of this site? Confirm its status | Sabinov | Slovakia | Completed |
| Metabol KLINIK s.r.o. Coordinator of this site? Confirm its status | Stare Mesto | Slovakia | Completed |
| Areteus s.r.o. Coordinator of this site? Confirm its status | Trebišov | Slovakia | Completed |
| Pinnacle Clinical Research Coordinator of this site? Confirm its status | Austin | United States | Unknown status |
| Texas Diabetes & Endocrinology, P.A. Coordinator of this site? Confirm its status | Austin | United States | Unknown status |
| Elite Clinical Trials Coordinator of this site? Confirm its status | Blackfoot | United States | Unknown status |
| Humphreys Diabetes Center Coordinator of this site? Confirm its status | Boise | United States | Unknown status |
| Northwestern University Coordinator of this site? Confirm its status | Chicago | United States | Unknown status |
| StudyMetrix Research Coordinator of this site? Confirm its status | City of Saint Peters | United States | Unknown status |
| Cleveland Clinic Coordinator of this site? Confirm its status | Cleveland | United States | Unknown status |
| South Texas Clinical Research Coordinator of this site? Confirm its status | Corpus Christi | United States | Unknown status |
| Valley Clinical Trials, Inc. Coordinator of this site? Confirm its status | Covina | United States | Unknown status |
| Altoona Center For Clinical Research Coordinator of this site? Confirm its status | Duncansville | United States | Unknown status |
| Neuro-Pain Medical Center Coordinator of this site? Confirm its status | Fresno | United States | Unknown status |
| Valley Research Coordinator of this site? Confirm its status | Fresno | United States | Unknown status |
| Tribe Clinical Research LLC Coordinator of this site? Confirm its status | Greenville | United States | Unknown status |
| Great Lakes Clinical Trials - Gurnee Coordinator of this site? Confirm its status | Gurnee | United States | Unknown status |
| Indago Research & Health Center, Inc Coordinator of this site? Confirm its status | Hialeah | United States | Unknown status |
| Pacific Diabetes & Endocrine Center Coordinator of this site? Confirm its status | Honolulu | United States | Unknown status |
| Brengle Family Medicine Coordinator of this site? Confirm its status | Indianapolis | United States | Unknown status |
| Clinical Neuroscience Solutions, Inc. dba CNS Healthcare Coordinator of this site? Confirm its status | Jacksonville | United States | Unknown status |
| Las Vegas Medical Research Coordinator of this site? Confirm its status | Las Vegas | United States | Unknown status |
| Palm Research Center Tenaya Coordinator of this site? Confirm its status | Las Vegas | United States | Unknown status |
| Collaborative Neuroscience Research, LLC Coordinator of this site? Confirm its status | Los Alamitos | United States | Unknown status |
| Velocity Clinical Research, Westlake Coordinator of this site? Confirm its status | Los Angeles | United States | Unknown status |
| Southern Endocrinology Associates Coordinator of this site? Confirm its status | Mesquite | United States | Unknown status |
| Carteret Medical Group Coordinator of this site? Confirm its status | Morehead City | United States | Unknown status |
| Trial Management Associates Coordinator of this site? Confirm its status | Myrtle Beach | United States | Unknown status |
| Weill Cornell Medical College Coordinator of this site? Confirm its status | New York | United States | Unknown status |
| Valley Clinical Trials, Inc. Coordinator of this site? Confirm its status | Northridge | United States | Unknown status |
| Advanced Research Institute Coordinator of this site? Confirm its status | Ogden | United States | Unknown status |
| Clinical Neuroscience Solutions, Inc. Coordinator of this site? Confirm its status | Orlando | United States | Unknown status |
| Charter Research - Winter Park Coordinator of this site? Confirm its status | Orlando | United States | Unknown status |
| Central Phoenix Medical Clinic Coordinator of this site? Confirm its status | Phoenix | United States | Unknown status |
| UPMC Montefiore University Hospital Coordinator of this site? Confirm its status | Pittsburgh | United States | Unknown status |
| Progressive Medical Research Coordinator of this site? Confirm its status | Port Orange | United States | Unknown status |
| Rainier Clinical Research Center Coordinator of this site? Confirm its status | Renton | United States | Unknown status |
| Rochester Clinical Research, LLC Coordinator of this site? Confirm its status | Rochester | United States | Unknown status |
| Texas Diabetes & Endocrinology, P.A. Coordinator of this site? Confirm its status | Round Rock | United States | Unknown status |
| Sleep Therapy Research Center Coordinator of this site? Confirm its status | San Antonio | United States | Unknown status |
| Consano Clinical Research, LLC Coordinator of this site? Confirm its status | Shavano Park | United States | Unknown status |
| Tribe Clinical Research - Spartanburg Coordinator of this site? Confirm its status | Spartanburg | United States | Unknown status |
| Central Illinois Diabetes and Clinical Research a Division of Prairie Education and Research Cooperative Coordinator of this site? Confirm its status | Springfield | United States | Unknown status |
| Cotton O'Neil Diabetes & Endocrinology Coordinator of this site? Confirm its status | Topeka | United States | Unknown status |
| Velocity Clinical Research, Panorama City Coordinator of this site? Confirm its status | Van Nuys | United States | Unknown status |
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| IMA Clinical Research Warren Coordinator of this site? Confirm its status | Warren Township | United States | Unknown status |
| Chase Medical Research, LLC Coordinator of this site? Confirm its status | Waterbury | United States | Unknown status |
| Iowa Diabetes and Endocrinology Research Center Coordinator of this site? Confirm its status | West Des Moines | United States | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.