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A Study of Retatrutide (LY3437943) Compared to Tirzepatide (LY3298176) in Adults Who Have Obesity
Sponsor: Eli Lilly and Company
Summary
The main purpose of this study is to evaluate the efficacy and safety of retatrutide compared to tirzepatide in adults who have obesity. The study will last about 89 weeks.
Official title: A Phase 3, Randomized, Double-Blind Study to Evaluate the Efficacy and Safety of Retatrutide Compared to Tirzepatide in Adults Who Have Obesity
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
800
Start Date
2024-11-01
Completion Date
2026-12
Last Updated
2025-04-27
Healthy Volunteers
No
Conditions
Interventions
Retatrutide
Administered SC
Tirzepatide
Administered SC
Locations (65)
Medical Advancement Centers of Arizona
Tempe, Arizona, United States
Mary & Dick Allen Diabetes Center
Newport Beach, California, United States
Artemis Institute for Clinical Research
San Diego, California, United States
Encompass Clinical Research
Spring Valley, California, United States
Diablo Clinical Research, Inc.
Walnut Creek, California, United States
Lynn Institute of Denver
Aurora, Colorado, United States
Bridgeport Hospital
Bridgeport, Connecticut, United States
Yale University School of Medicine
New Haven, Connecticut, United States
Encore Medical Research
Hollywood, Florida, United States
Suncoast Research Group
Miami, Florida, United States
Onhealth Research Center
Miami, Florida, United States
Precision Clinical Research
Sunrise, Florida, United States
Einstein Clinical Research
Vero Beach, Florida, United States
ClinCept Clinical Research - MH
Columbus, Georgia, United States
Northeast Georgia Medical Center
Gainesville, Georgia, United States
Pivotal Research Solutions
Stonecrest, Georgia, United States
East-West Medical Research Institute
Honolulu, Hawaii, United States
Northwestern University
Chicago, Illinois, United States
Integrated Clinical Trial Services, Inc.
West Des Moines, Iowa, United States
Pennington Biomedical Research Center
Baton Rouge, Louisiana, United States
Great Lakes Research Group, Inc.
Bay City, Michigan, United States
Great Lakes Research Institute
Southfield, Michigan, United States
StudyMetrix Research
City of Saint Peters, Missouri, United States
Las Vegas Endocrinology
Henderson, Nevada, United States
Albany Medical College, Division of Community Endocrinology
Albany, New York, United States
New York Gastroenterology Associates
New York, New York, United States
Westchester Medical Center
Valhalla, New York, United States
PharmQuest Life Sciences, LLC
Greensboro, North Carolina, United States
Monroe Biomedical Research
Monroe, North Carolina, United States
Accellacare - Wilmington
Wilmington, North Carolina, United States
Lillestol Research
Fargo, North Dakota, United States
PriMED Clinical Research
Dayton, Ohio, United States
Tribe Clinical Research, LLC
Greenville, South Carolina, United States
WR-Clinsearch, LLC
Chattanooga, Tennessee, United States
Headlands Horizons LLC
Brownsville, Texas, United States
Next Level Urgent Care
Houston, Texas, United States
Houston Research Institute
Houston, Texas, United States
Consano Clinical Research, LLC
Shavano Park, Texas, United States
Chrysalis Clinical Research
St. George, Utah, United States
Charlottesville Medical Research
Charlottesville, Virginia, United States
DIM Clínica Privada
Ramos Mejía, Buenos Aires, Argentina
Centro Médico Viamonte
Buenos Aires, Buenos Aires F.D., Argentina
Consultorio de Investigación Clínica EMO SRL
Buenos Aires, Buenos Aires F.D., Argentina
Centro Medico Dra. Laura Maffei- Investigacion Clinica Aplicada
Buenos Aires, Buenos Aires F.D., Argentina
Centro de Investigaciones Metabólicas (CINME)
Buenos Aires, Argentina
Gemeinschaftspraxis Prof. Dr. med. Stephan Jacob, Dr. med. Frohmut Jacob
Villingen-Schwenningen, Baden-Wurttemberg, Germany
Diabetologische Schwerpunktpraxis Dr. Staudenmeyer & Dr. Schiwietz
Lingen, Lower Saxony, Germany
Zentrum fur klinische Forschung - Köln
Cologne, North Rhine-Westphalia, Germany
InnoDiab Forschung Gmbh
Essen, North Rhine-Westphalia, Germany
Medizentrum Essen Borbeck
Essen, North Rhine-Westphalia, Germany
AmBeNet GmbH
Leipzig, Saxony, Germany
RED-Institut GmbH
Oldenburg in Holstein, Schleswig-Holstein, Germany
Diabetes Zentrum Wilhelmsburg
Hamburg, Germany
Diabeteszentrum Hamburg West
Hamburg, Germany
Centrum Zdrowia Metabolicznego Pawel Bogdanski
Poznan, Greater Poland Voivodeship, Poland
Nzoz Neuro-Kard Ilkowski i Partnerzy SPL
Poznan, Greater Poland Voivodeship, Poland
Gabinety TERPA
Lublin, Lublin Voivodeship, Poland
Ekamed
Lublin, Lublin Voivodeship, Poland
Uniwersytecki Szpital Kliniczny w Białymstoku
Bialystok, Podlaskie Voivodeship, Poland
Gabinet Leczenia Otylosci i Chorob Dietozaleznych - dr hab. n. med. Lucyna Ostrowska
Bialystok, Podlaskie Voivodeship, Poland
Zdrowie Osteo-Medic
Bialystok, Podlaskie Voivodeship, Poland
NZOZ Specjalistyczny Ośrodek Internistyczno-Diabetologiczny
Bialystok, Podlaskie Voivodeship, Poland
NZOZ Przychodnia Specjalistyczna Andrzej Wittek, Henryk Rudzki
Ruda Śląska, Silesian Voivodeship, Poland
Centrum Terapii Wspolczesnej J. M. Jasnorzewska Spolka Komandytowo-Akcyjna
Lodz, Łódź Voivodeship, Poland
Ponce Medical School Foundation Inc.
Ponce, Puerto Rico