New diabetes drug retatrutide takes on semaglutide in major trial
NCT ID NCT06260722
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a new weekly medicine, retatrutide, against an existing one, semaglutide, in about 1250 adults with type 2 diabetes whose blood sugar is not well controlled by metformin. The goal is to see which works better at lowering blood sugar and weight over 26 months. Participants must have stable weight and a BMI of 25 or higher.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 1,250 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2024
- Expected to finish
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Jan 2027
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Have Type 2 Diabetes (T2D) * Have HbA1c ≥ 7.0% (53 millimoles per mole (mmol/mol)) to ≤ 10.5% (91 mmol/mol) * Have been on a stable diabetes treatment consisting of metformin ≥ 1500 milligrams per day (mg/day) with or without SGLT2i during 90 days prior to screening * Are of stable weight for at least 90 days prior to screening * Have a Body Mass Index (BMI) ≥ 25.0 kilograms per meter squared (kg/m\^2) Exclusion Criteria: * Have Type 1 Diabetes (T1D) * Have a history of ketoacidosis or hyperosmolar state or coma within the last 6 months prior to screening * Have a history of severe hypoglycemia or hypoglycemia unawareness within the last 6 months prior to screening * Are currently receiving or planning to receive treatment for diabetic retinopathy and/or macular edema * Have an estimated glomerular filtration rate (eGFR) \<45 milliliters/minute/1.73 meter squared (mL/min/1.73 m\^2) or lower than the country-specific threshold for discontinuing metformin therapy per local label as determined by the central laboratory * Have a prior or planned surgical treatment for obesity * Have New York Heart Association Functional Classification IV congestive heart failure * Have had an acute myocardial infarction, stroke, or were hospitalized for congestive heart failure within 90 days prior to screening * Have a known clinically significant gastric emptying abnormality * Have a history of an active or untreated malignancy or are in remission from a clinically significant malignancy for less than 5 years * Have any lifetime history of a suicide attempt * Had chronic or acute pancreatitis * Have a family or personal history of medullary thyroid carcinoma or multiple endocrine neoplasia (MEN) syndrome Type 2 * Have taken prescribed or over-the-counter medication, or alternative remedies, intended to promote body weight reduction within 90 days prior to screening.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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9109-0126 Quebec Inc.
Montreal, Quebec, H4N 2W2, Canada
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Advanced Clinical Research, LLC
Bayamón, 00959, Puerto Rico
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Aggarwal and Associates Limited
Brampton, Ontario, L6T 0G1, Canada
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Alberta Diabetes Institute
Edmonton, Alberta, T6G 2E1, Canada
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Alliance for Multispecialty Research, LLC
Norman, Oklahoma, 73069, United States
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Arcturus Healthcare , PLC, Troy Internal Medicine Research Division
Troy, Michigan, 48098, United States
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Arrow Clinical Trials
Daytona Beach, Florida, 32117, United States
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Bluewater Clinical Research Group Inc.
Sarnia, Ontario, N7T 4X3, Canada
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Brigham and Women's Hospital Diabetes Program
Boston, Massachusetts, 02115, United States
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CARE - Centro de Alergia y Enfermedades Respiratorias
Ciudad Autónoma de Buenos Aires, Buenos Aires, 1414, Argentina
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CEMEDIAB
C.a.b.a., Buenos Aires F.D., C1205AAO, Argentina
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CIPADI - Centro Integral de Prevencion y Atencion en Diabetes
Godoy Cruz, Mendoza Province, 5501, Argentina
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CIPREC
Buenos Aires, Buenos Aires F.D., C1061AAS, Argentina
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Cardiolink Clin Trials
Monterrey, Nuevo León, 64060, Mexico
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Central States Research
Tulsa, Oklahoma, 74136, United States
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Central Washington Health Services Association d/b/a Confluence Health
Wenatchee, Washington, 98801, United States
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Centricity Research Brampton Endocrinology
Brampton, Ontario, L6S 0C6, Canada
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Centro Diabetológico Dr. Waitman
Córdoba, 5000, Argentina
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Centro Especializado En Diabetes, Obesidad Y Prevencion De Enfermedades Cardiovasculares
Mexico City, Mexico City, 11650, Mexico
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Centro Medico Dra. Laura Maffei- Investigacion Clinica Aplicada
Buenos Aires, Buenos Aires F.D., C1425AGC, Argentina
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Centro Medico Privado San Vicente Diabetes
Córdoba, Córdoba Province, 5006, Argentina
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Centro Médico Viamonte
Buenos Aires, Buenos Aires F.D., C1120AAC, Argentina
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Centro de Investigaciones Clínicas Baigorria
Granadero Baigorria, Santa Fe Province, 2152, Argentina
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Centro de Investigaciones Metabólicas (CINME)
Buenos Aires, C1056ABI, Argentina
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Clinical Research of Central Florida
Winter Haven, Florida, 33880, United States
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Clínica García Flores SC
Monterrey, Nuevo León, 64610, Mexico
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Consano Clinical Research, LLC
Shavano Park, Texas, 78231, United States
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Deaconess Clinic - Gateway Health Center
Newburgh, Indiana, 47630, United States
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Diseno y Planeacion en Investigacion Medica
Guadalajara, Jalisco, 44130, Mexico
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Enclifar Ensayos Clínicos Farmacológicos Sc
Chihuahua City, 31110, Mexico
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Fundación Respirar
Buenos Aires, C1426ABP, Argentina
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GCM Medical Group, PSC - Hato Rey Site
San Juan, 00917, Puerto Rico
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Hamilton Medical Research Group
Hamilton, Ontario, L8L5G4, Canada
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Herman Clinical Research
Suwanee, Georgia, 30024, United States
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Hospital Universitario "Dr. Jose Eleuterio Gonzalez"
Monterrey, Nuevo León, 66460, Mexico
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Hospital de Jésus, I.A.P.
Mexico City, Mexico City, 06090, Mexico
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IMA Clinical Research Monroe - Armand
Monroe, Louisiana, 71201, United States
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IMA Clinical Research West Virginia
Morgantown, West Virginia, 26505, United States
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Instituto Centenario
CABA, Buenos Aires F.D., 1204, Argentina
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Instituto Veracruzano en Investigación Clínica S.C.
Veracruz, 91851, Mexico
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Instituto de Diabetes, Obesidad y Nutricion
Cuernavaca, Morelos, 62250, Mexico
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Instituto de Investigaciones Clinicas Rosario
Rosario, Santa Fe Province, S2000CVD, Argentina
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Juno Research
Houston, Texas, 77040, United States
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Long Beach Research Institute
Long Beach, California, 90805, United States
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Maple Leaf Research
Toronto, Ontario, M5G 1K2, Canada
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Mautalen Salud e Investigación
Buenos Aires, Buenos Aires F.D., C1128AAF, Argentina
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MedStar Health Research Institute (MedStar Physician Based Research Network)
Hyattsville, Maryland, 20782, United States
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Medication Management
Greensboro, North Carolina, 27405, United States
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Medrasa Clinical Research
Wylie, Texas, 75098, United States
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NECCR PrimaCare Research
Fall River, Massachusetts, 02721, United States
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NYC Research INC
Long Island City, New York, 11106, United States
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Neighborhood Healthcare Institute of Health
Escondido, California, 92025, United States
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New Age Medical Research Corporation
Miami, Florida, 33186, United States
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North Georgia Clinical Research
Woodstock, Georgia, 30189, United States
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Pacific Diabetes & Endocrine Center
Honolulu, Hawaii, 96817, United States
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Palm Research Center Sunset
Las Vegas, Nevada, 89148, United States
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Palm Research Center Tenaya
Las Vegas, Nevada, 89128, United States
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Prime Health Clinical Research
Toronto, Ontario, M4S 1Y2, Canada
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Private Practice - Dr. Nigel Jagan
Whitby, Ontario, L1N 2L1, Canada
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RM Pharma Specialists
Mexico City, Mexico City, 03100, Mexico
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Rancho Cucamonga Clinical Research
Rancho Cucamonga, California, 91730, United States
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Remington Davis Clinical Research
Columbus, Ohio, 43215, United States
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Rocky Mountain Clinical Research
Idaho Falls, Idaho, 83404, United States
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South Broward Research
Miramar, Florida, 33027, United States
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Southern Endocrinology Associates
Mesquite, Texas, 75149, United States
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Stat Research S.A.
Buenos Aires, Buenos Aires F.D., C1023AAB, Argentina
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Texas Valley Clinical Research
Weslaco, Texas, 78596, United States
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The Corvallis Clinic, P.C.
Corvallis, Oregon, 97330, United States
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The Wharton Medical Clinic Clinical Trials Inc
Hamilton, Ontario, L8L 5G8, Canada
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Thomas Jefferson University Hospital
Philadelphia, Pennsylvania, 19107, United States
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University of Alabama - Department of Nutrition Sciences
Birmingham, Alabama, 35294, United States
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University of Calgary - Clinical Trials Unit
Calgary, Alberta, T2T 5C7, Canada
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University of Colorado Anschutz Medical Campus
Aurora, Colorado, 80045, United States
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Valley Clinical Trials, Inc.
Northridge, California, 91325, United States
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Valley Institute of Research - Fort Worth
Fort Worth, Texas, 76164, United States
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Velocity Clinical Research, Dallas
Dallas, Texas, 75230, United States
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Winterberry Research Inc.
Hamilton, Ontario, L8J 0B6, Canada
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