ObesityPhase 3MARITIME-1NCT06858839
Evaluation of Maridebart Cafraglutide in Adult Participants Without Type 2 Diabetes Mellitus Who Have Obesity or Are Overweight
A Phase 3 study testing Maridebart Cafraglutide in people with Obesity, run by Amgen at 243 sites in 17 countries.
Trial summary
The primary objective of this study is to demonstrate that maridebart cafraglutide is superior to placebo for percent change in body weight. Read more about this study
- Who is it for?
- Ages 18 to 99 years
- Conditions the study is for
- Obesity
- What is being tested?
- Maridebart Cafraglutide
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 3,853 participants
- Where
- 243 sitesin 17 countries
- Study dates
- 12 Mar 2025to 16 Apr 2027
- Phase
- Phase 3
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 99 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Age ≥ 18 years.
- Body mass index ≥ 30 kg/m2 or ≥27 kg/m² to < 30 kg/m2 with at least 1 of the following weight-related comorbidities: hypertension, dyslipidemia, history of obstructive sleep apnea, history of cardiovascular disease, history of metabolic dysfunction-associated steatotic liver disease (MASLD) or Metabolic Dysfunction-Associated Steatohepatitis (MASH).
- History of at least 1 self-reported unsuccessful attempt at weight loss by diet and exercise.
Who cannot join
- Type 1 or Typ2 diabetes mellitus.
- Obesity induced by other endocrinologic disorders.
- Self-reported change in body weight > 5 kg within 90 days before screening.
- Family (first-degree relative[s]) or personal history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia syndrome type 2.
- History of chronic pancreatitis or history of acute pancreatitis within 180 days before screening.
- History of unstable major depressive disorder (MDD) or other severe psychiatric disorder within 2 years before screening.
- Lifetime history of suicide attempt.
Trial locations and contacts
243 sites in 17 countries.
243 sites in 17 countries
United States74 sites
Pinnacle Research Group LLC
Anniston, Alabama, 36207
Washington Center for Weight Management and Research, Inc
Arlington, Virginia, 22206
Elligo Clinical Research Center
Austin, Texas, 78704
Velocity Clinical Research - Baton Rouge
Baton Rouge, Louisiana, 70809
Pantheon Clinical Research
Bountiful, Utah, 84010
Flourish Research - Great Lakes Clinical Trials
Chicago, Illinois, 60640
Clinical Trial Investigator Clinical Research Center
Cincinnati, Ohio, 45212
Velocity Clinical Research - Cincinnati
Cincinnati, Ohio, 45219
Cedar Health Research, LLC
Dallas, Texas, 75251
Alliance For Multispecialty Research - Daphne
Daphne, Alabama, 36526
Epic Medical Research - Texas
DeSoto, Texas, 75115
Velocity Clinical Research - Providence
East Greenwich, Rhode Island, 02818
Great Lakes Research Institute El Paso Research
El Paso, Texas, 79936
Cedar Health Research, LLC
Euless, Texas, 76040
Prime Health and Wellness Sky Clinical Research Network Group
Fayette, Mississippi, 39069
Ark Clinical Research- Tustin
Fountain Valley, California, 92708
Center for Advanced Research and Education
Gainesville, Georgia, 30501
Tribe Clinical Research LLC Dba Mountain View Clinical Research
Greenville, South Carolina, 29607
Indago Research and Health Center
Hialeah, Florida, 33012
Accellacare of Hickory
Hickory, North Carolina, 28601
East-West Medical Research
Honolulu, Hawaii, 96814
Juno Research LLC
Houston, Texas, 77040
Biopharma Informatic, LLC
Houston, Texas, 77043
Juno Research LLC
Houston, Texas, 77054
Jacksonville Center for Clinical Research
Jacksonville, Florida, 32216
Clinical Neuroscience Solutions - Jacksonville
Jacksonville, Florida, 32256
Alliance for Multispecialty Research - Kansas City
Kansas City, Missouri, 64114
New Phase Research and Development
Knoxville, Tennessee, 37909
Accellacare US Inc., d/b/a Accellacare of Knoxville
Knoxville, Tennessee, 37938
Palm Research Center Inc
Las Vegas, Nevada, 89128
Vector Clinical Trials
Las Vegas, Nevada, 89128
Alliance for Multispecialty Research Layton Research Center
Layton, Utah, 84041
Long Beach Clinical Trials Services Inc
Long Beach, California, 90806
Ark Clinical Research- Long Beach
Long Beach, California, 90815
Louisville Metabolic and Atherosclerosis Research Center
Louisville, Kentucky, 40213
South Florida Wellness and Clinical Research Institute
Margate, Florida, 33063
Tandem Clinical Research - Marrero
Marrero, Louisiana, 70072
Solaris Clinical Research
Meridian, Idaho, 83646
Southern Endocrinology Associates PA
Mesquite, Texas, 75149
Optimus U Corporation
Miami, Florida, 33135
Research Institute of South Florida
Miami, Florida, 33173
Allegiance Research Specialists
Milwaukee, Wisconsin, 53226
Alliance for Multispecialty Research Mobile
Mobile, Alabama, 36608
Catalina Research Institute
Montclair, California, 91763
Yale School of Medicine
New Haven, Connecticut, 06520
Capital Area Research LLC
Newport, Pennsylvania, 17074
Health Research of Hampton Roads
Newport News, Virginia, 23606
Alliance for Multispecialty Research Newton
Newton, Kansas, 67114
Alliance for Multispecialty Research - Norman
Norman, Oklahoma, 73069
Renstar Medical Research
Ocala, Florida, 34470
Clinical Neuroscience Solutions - Orlando
Orlando, Florida, 32801
Combined Research Orlando Phase I IV
Orlando, Florida, 32807
Florida Institute for Clinical Research
Orlando, Florida, 32825
Great Lakes Research Institute - McAllen Research
Pharr, Texas, 78557
Avacare Foothills Research Center
Phoenix, Arizona, 85044
Artemis Institute for Clinical Research
Riverside, California, 92503
Rochester Clinical Research
Rochester, New York, 14609
Clinical Trials of Texas
San Antonio, Texas, 78229
Artemis Institute for Clinical Research
San Diego, California, 92103
Apex Clinical Research
San Diego, California, 92120
Southern California Clinical Research
Santa Ana, California, 92701
Carolina Research Center Inc
Shelby, North Carolina, 28150
Endeavor Health Medical Group - Endocrinology and Diabetes- Skokie
Skokie, Illinois, 60077
Evanston Premier Healthcare Research LLC
Skokie, Illinois, 60077
Headlands Research - Detroit
Southfield, Michigan, 48034
Chrysalis Clinical Research, LLC
St. George, Utah, 84770
Sugar Lakes Family Practice
Sugar Land, Texas, 77479
Rophe Adult and Pediatric Medicine/Sky Clinical Research Network Group
Union City, Georgia, 30291
Velocity Clinical Research- Binghamton
Vestal, New York, 13850
Diablo Clinical Research
Walnut Creek, California, 94598
Chase Medical Research LLC
Waterbury, Connecticut, 06708
Encore Medical Research of Weston LLC
Weston, Florida, 33331
Selma Medical Associates
Winchester, Virginia, 22601
Wake Forest University Health Sciences
Winston-Salem, North Carolina, 27157
Germany30 sites
Universitaetsklinikum Aachen
Aachen, 52074
Kardiologische Praxis Dr med Wolfgang Jungmair
Bad Homburg, 61348
Universitaets-Herzzentrum Freiburg - Bad Krozingen
Bad Krozingen, 79189
Diabetespraxis Bad Mergentheim
Bad Mergentheim, 97980
Universitaetsklinikum der Ruhr-Universitaet Bochum
Bad Oeynhausen, 32545
Charite - Universitaetsmedizin Berlin, Campus Mitte
Berlin, 10117
Velocity Clinical Research GmbH
Berlin, 10787
Diabetespraxis Dr. Hermann Braun
Berlin, 13187
Mvz am Bahnhof Spandau
Berlin, 13597
Universitaetsklinikum Dresden
Dresden, 01307
Zentrum fuer Klinische Studien Suedbrandenburg GmbH
Elsterwerda, 04190
InnoDiab Forschung
Essen, 45136
Praxis am Markt Dr. Bernd Becker
Essen, 45355
Schwerpunktpraxis fuer Diabetes, Gefaess- & Ernaehrungsmedizin
Falkensee, 14612
ClinPhenomics CVC GmbH
Frankfurt am Main, 60596
Diabeteszentrum Hamburg West
Hamburg, 22607
Endokrinologikum Hamburg
Hamburg, 22767
Diabetologische Schwerpunktpraxis Hohenmoelsen
Hohenmölsen, 06679
Braun Ambulantes Herzzentrum Kassel
Kassel, 34121
Universitaetsklinikum Leipzig
Leipzig, 04103
AmBeNet GmbH
Leipzig, 04107
Universitaetsklinikum Schleswig-Holstein - Luebeck
Lübeck, 23538
Marienhaus Klinikum Mainz
Mainz, 55131
Kardiologische Praxis Doktor Jens Taggeselle
Markkleeberg, 04416
Centrum für Diagnostik und Gesundheit
München, 80809
Zentrum fuer Diabtes und Gefaesskrankheiten im Franziskus Carré Muenster
Münster, 48145
Praxis Segner - Dr. Braun - Kirsch
Oberwürzbach, 66386
Red-Institut GmbH
Oldenburg, 23758
Gemeinschaftspraxis Prof Jacob/ Dr Jacob
Villingen-Schwenningen, 78048
Zentrum fuer klinische Forschung Allgaeu Oberschwaben
Wangen, 88239
South Korea19 sites
Korea University Ansan Hospital
Ansan-si, Gyeonggi-do, 15355
Hallym University Sacred Heart Hospital
Anyang-si, Gyeonggi-do, 14068
The Catholic University of Korea Bucheon St Marys Hospital
Bucheon, Gyeonggi-do, 14647
Dong-A University Hospital
Busan, 49201
Kyungpook National University Hospital
Daegu, 41944
Yeungnam University Medical Center
Daegu, 42415
Daejeon Eulji Medical Center, Eulji University
Daejeon, 35233
Konyang University Hospital
Daejeon, 35365
Dongguk University Ilsan Hospital
Goyang-si, Gyeonggi-do, 10326
Gachon University Gil Medical Center
Incheon, 21565
Seoul National University Bundang Hospital
Seongnam-si, Gyeonggi-do, 13620
Seoul National University Hospital
Seoul, 03080
Kangbuk Samsung Hospital
Seoul, 03181
Severance Hospital Yonsei University Health System
Seoul, 03722
KyungHee University Gangdong Hospital
Seoul, 05278
Seoul Metropolitan Government Seoul National University Boramae Medical Center
Seoul, 07061
The Catholic University of Korea Yeouido St Marys Hospital
Seoul, 07345
Ajou University Hospital
Suwon-si Gyeonggi-do, 16499
Pusan National University Yangsan Hospital
Yangsan-si, Gyeongsangnam-do, 50612
United Kingdom15 sites
Ormeau Clinical Trials Ltd
Belfast, BT28BG
FutureMeds Birmingham
Birmingham, B21 9RY
Layton Medical Centre
Blackpool, FY3 7EN
Waterloo Medical Centre
Blackpool, FY4 3AD
Southmead Hospital
Bristol, BS10 5NB
The Rame Group Practice
Cornwall, PL11 2TB
Staploe Medical Centre
Ely, CB7 5JD
FutureMeds Glasgow
Glasgow, G20 7BE
Hull Royal Infirmary
Hull, HU3 2JZ
NIHR Leicestershire & Northamptonshire Commercial Research Delivery Centre
Leicester, LE5 4PW
Aintree University Hospital
Liverpool, L9 7AL
FutureMeds Newcastle
Newcastle upon Tyne, NE6 1SG
Atlantic Medical Group
Penzance, TR183DX
Clifton Medical Centre
Rotherham, S65 1DA
Ashfields Primary Care Centre
Sandbach, CW11 1EQ
Canada12 sites
Ecogene-21
Chicoutimi, Quebec, G7H 7K9
Wharton Medical Clinic
Hamilton, Ontario, L8L 5G8
North York Diagnostic and Cardiac Centre
North York, Ontario, M6B 3H7
Centricity Research Oshawa Multispecialty
Oshawa, Ontario, L1J 2K9
Institut Universitaire de cardiologie et de pneumologie de Quebec
Québec, Quebec, G1V 4G5
CardioVasc HR Incorporated
Saint-Jean-sur-Richelieu, Quebec, J3A 1J2
Heart Health Institute Research Incorporated
Scarborough Village, Ontario, M1B 4Z8
tlc Diabetes and Endocrinology
Surrey, British Columbia, V3T 2V6
Centre de Medecine Metabolique de Lanaudiere
Terrebonne, Quebec, J6X 4P7
Curans Heart Center
Thunder Bay, Ontario, P7B 5N3
Centricity Research Toronto
Toronto, Ontario, M4G 3E8
Diabetes Heart Research Centre
Toronto, Ontario, M6G 1M2
Poland12 sites
Gabinet Leczenia Otylosci i Chorob Dietozaleznych dr hab n med Lucyna Ostrowska
Bialystok, 15-281
Kresmed Spolka z Ograniczona Odpowiedzialnoscia
Bialystok, 15-481
Etg Lublin Spzoo
Dębica, 39-200
Futuremeds Spolka z ograniczona odpowiedzialnoscia
Gdynia, 81-384
Uniwersyteckie Centrum Kliniczne im Prof K Gibinskiego Slaskiego UM w Katowicach
Katowice, 40-752
Salvia-Lekston i Madej Spolka Jawna
Katowice, 40-772
Centrum Terapii Wspolczesnej J M Jasnorzewska Spolka Komandytowo Akcyjna
Lodz, 90-338
Ekamed Spolka z Ograniczona Odpowiedzialnoscia
Lublin, 20-718
Centrum Zdrowia Metabolicznego Pawel Bogdanski
Poznan, 60-589
Clinical Research Center Spzoo Medic-R Spolka Komandytowa
Poznan, 61-731
Futuremeds Spolka z ograniczona odpowiedzialnoscia
Warsaw, 00-215
Clinical Best Solutions Sp zoo Spolka komandytowa
Warsaw, 00-710
Australia11 sites
Emeritus Research Sydney
Botany, New South Wales, 2019
Emeritus Research Camberwell
Camberwell, Victoria, 3124
Novatrials
Charlestown, New South Wales, 2290
Austin Health, Heidelberg Repatriation Hospital
Heidelberg West, Victoria, 3081
Logan Hospital
Meadowbrook, Queensland, 4131
Canopy Clinical Sutherland
Miranda, New South Wales, 2228
Canopy Clinical Altona North
North Altona, Victoria, 3025
Fusion Clinical Research
Norwood, South Australia, 5067
Southern Adelaide Diabetes and Endocrine Services
Oaklands Park, South Australia, 5046
Royal North Shore Hospital
St Leonards, New South Wales, 2065
Canopy Clinical Wollongong
Wollongong, New South Wales, 2500
Czechia11 sites
Medicus Services sro
Brandýs nad Labem, 250 01
Fakultni nemocnice Brno
Brno, 625 00
Endohope Havirov sro
Havířov, 736 01
PreventaMed sro
Olomouc, 779 00
CCR Ostrava sro
Ostrava, 702 00
Fakultni nemocnice Kralovske Vinohrady
Prague, 100 34
Vseobecna fakultni nemocnice v Praze
Prague, 128 08
Ob klinika as
Prague, 130 00
Institut klinicke a experimentalni mediciny
Prague, 140 21
Endohope klinika sro
Prague, 150 00
Endokrinologie Cerny Most sro
Prague, 198 00
Spain11 sites
Hospital Medico Quirurgico San Rafael
A Coruña, Galicia, 15006
Centro Periferico de Especialidades Bola Azul
Almería, Andalusia, 04009
Hospital Vithas Sevilla
Castilleja de la Cuesta, Andalusia, 41950
Hospital Infanta Elena
Huelva, Andalusia, 21007
Clinica Juaneda
Palma, 07014
Clinica Universidad de Navarra
Pamplona, Navarre, 31008
Clinica Ruber SA
Pozuelo de Alarcón, Madrid, 28223
Hospital Virgen del Camino
Sanlúcar de Barrameda, Andalusia, 11540
Nuevas Tecnologias en Diabetes y Endocrinologia
Seville, Andalusia, 41003
Hospital Quironsalud Infanta Luisa
Seville, Andalusia, 41010
Hospital Universitario Doctor Peset
Valencia, 46017
Argentina8 sites
Cedic - Centro de Investigacion Clinica
CABA, Buenos Aires, 1060
Centro Medico Viamonte
CABA, Buenos Aires, 1120
Cemedic Centro de Especialidades Medicas
CABA, Buenos Aires, C1407GTN
Centro Medico Dra Laura Maffei Investigacion Clinica Aplicada
CABA, Buenos Aires, C1425AGC
Consultorios Medicos Dr Besada
CABA, Buenos Aires, C1426ABP
Fundacion Respirar
CABA, Buenos Aires, C1426ABP
Cinme - Centro de Investigaciones Metabolicas
Ciudad Autonoma de Buenos Aires, Buenos Aires, C1056ABI
Ciprec - Centro de Investigacion y Prevencion Cardiovascular
Ciudad Autonoma de Buenos Aires, Buenos Aires, C1061AAT
Italy8 sites
IRCCS Azienda Ospedaliero Universitaria di Bologna Policlinico di Sant Orsola
Bologna, 40138
Universita degli Studi Gabriele D Annunzio di Chieti e Pescara
Chieti, 66100
Azienda Ospedaliero Universitaria Careggi
Florence, 50134
IRCCS Centro Cardiologico Monzino
Milan, 20138
Azienda Socio Sanitaria Territoriale Fatebenefratelli Sacco
Milan, 20157
Ospedale Civico, Di Cristina e Benfratelli
Palermo, 90127
Azienda Ospedaliero Universitaria Pisana
Pisa, 56126
Fondazione Policlinico Tor Vergata
Roma, 00133
Belgium7 sites
Universitair Ziekenhuis Antwerpen
Edegem, 2650
Universitair Ziekenhuis Gent
Ghent, 9000
Algemeen Ziekenhuis Groeninge - Campus Kennedylaan
Kortrijk, 8500
Universitair Ziekenhuis Leuven - Campus Gasthuisberg
Leuven, 3000
Centre Hospitalier Universitaire de Liege - Sart Tilman
Liège, 4000
Algemeen Ziekenhuis Sint-Maarten
Mechelen, 2800
Centres Hospitaliers Universitaires HELORA - Hôpital de Mons - Site Constantinople
Mons, 7000
Japan7 sites
Doujin Memorial Foundation, Meiwa Hospital
Chiyoda-ku, Tokyo, 101-0041
Tokyo Asbo Clinic
Chuo-ku, Tokyo, 104-0031
Medical Corp Seikoukai New Medical Research System Clinic
Hachioji-shi, Tokyo, 192-0046
Medical Corporation AOT Shinagawa Strings Clinic
Minato-ku, Tokyo, 108-0075
Clinical Research Hospital Tokyo
Shinjuku-ku, Tokyo, 160-0004
Medical Corporation Hanabusakai Shinei Medical Healthcare Clinic
Suginami-ku, Tokyo, 166-0003
Medical Corporation Hitomikai Motomachi Takatsuka Naika Clinic
Yokohama, Kanagawa, 231-0023
Denmark6 sites
Sanos Gandrup
Gandrup, 9362
Gentofte Hospital
Hellerup, 2900
Sanos Clinic
Herlev, 2730
Steno Diabetes Center Copenhagen
Herlev, 2730
Regionshospitalet Godstrup
Herning, 7400
Hvidovre Hospital
Hvidovre, 2650
Switzerland5 sites
Universitaetsspital Basel
Basel, 4031
Hopitaux Universitaires de Geneve
Geneva, 1211
Kantonsspital Sankt Gallen
Sankt Gallen, 9007
Stoffwechselzentrum Sankt Gallen
Sankt Gallen, 9016
Universitaetsspital Zuerich
Zurich, 8091
Puerto Rico4 sites
Ponce Medical School Foundation Inc
Ponce, 00716
Puerto Rico Medical Research Inc.
Ponce, 00717
Latin Clinical Trial Center
San Juan, 00909
Wellness Clinical Research Vega Baja
Vega Baja, 00694
Finland3 sites
Obesity Research Unit
Helsinki, 02290
Health Step Finland
Kuopio, 70211
Oulu University Hospital
Oulu, 90220
About this study
Official title: A Phase 3 Randomized, Double-blind, Placebo-controlled Study to Evaluate the Efficacy, Safety, and Tolerability of Maridebart Cafraglutide in Adult Participants Without Type 2 Diabetes Mellitus Who Have Obesity or Are Overweight
The primary objective of this study is to demonstrate that maridebart cafraglutide is superior to placebo for percent change in body weight.
- Conditions
- Obesity
- Being tested
- Maridebart Cafraglutide, Placebo
- Keywords
- Overweight, BMI, Body weight, Maridebart cafraglutide, Chronic weight management, MariTide
- Medical subject headings
- Obesity, Overweight, Body Weight
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Maridebart CafraglutideDrug
Also called AMG 133, MariTide
Maridebart cafraglutide will be administered SC.
PlaceboDrug
Placebo will be administered SC.
| Study group | Role | What they receive |
|---|---|---|
| Maridebart Cafraglutide High Dose | Experimental | Participants will receive maridebart cafraglutide high dose subcutaneously (SC) for 72 weeks. Receives: Drug: Maridebart Cafraglutide |
| Maridebart Cafraglutide Medium Dose | Experimental | Participants will receive maridebart cafraglutide medium dose SC for 72 weeks. Receives: Drug: Maridebart Cafraglutide |
| Maridebart Cafraglutide Low Dose | Experimental | Participants will receive maridebart cafraglutide low dose SC for 72 weeks. Receives: Drug: Maridebart Cafraglutide |
| Placebo | Placebo comparator | Participants will receive placebo SC for 72 weeks. Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percent Change From Baseline in Body Weight at Week 72
Measured: Baseline and Week 72
Secondary outcomes (20)
Change From Baseline in Waist Circumference at Week 72
Measured: Baseline and Week 72
Participant achieving ≥ 5% reduction in body weight from baseline at week 72
Measured: Week 72
Participant achieving ≥ 10% reduction in body weight from baseline at week 72
Measured: Week 72
Participant achieving ≥ 15% reduction in body weight from baseline at week 72
Measured: Week 72
Participant achieving ≥ 20% reduction in body weight from baseline at week 72
Measured: Week 72
Change From Baseline in Systolic Blood Pressure (SBP) at Week 72
Measured: Baseline and Week 72
Percent Change From Baseline in Fasting Triglycerides at Week 72
Measured: Baseline and Week 72
Change From Baseline in Fasting Glucose at Week 72
Measured: Baseline and Week 72
Change From Baseline in the Impact of Weight on Quality of Life-Lite Clinical Trials Version (IWQOL-Lite-CT) Physical Function Composite Score at Week 72
The IWQOL-Lite-CT is a 20-item questionnaire designed to assess the impact of weight on quality of life in clinical trials. Items are scored on a 5-point Likert scale, with raw scores transformed to a 0-100 scale, where higher scores indicate better quality of life and less weight-related impact.
Measured: Baseline and Week 72
Change From Baseline in Body Weight at Week 72
Measured: Baseline and Week 72
Change From Baseline in Body Mass Index (BMI) at Week 72
Measured: Baseline and Week 72
Change From Baseline in Hemoglobin A1c at Week 72
Measured: Baseline and Week 72
Percent Change From Baseline in Fasting Insulin at Week 72
Measured: Baseline and Week 72
Change From Baseline in Glycemic Status at Week 72
Measured: Baseline and Week 72
Percent Change From Baseline in Fasting Lipid Parameters at Week 72
Lipid parameters include: total cholesterol, non-high-density lipoprotein cholesterol (non-HDL-C), low-density lipoprotein cholesterol (LDL-C), very-low-density lipoprotein cholesterol (VLDL-C), and high-density lipoprotein cholesterol (HDL-C).
Measured: Baseline and Week 72
Change From Baseline in Diastolic Blood Pressure (DBP) at Week 72
Measured: Baseline and Week 72
Percent Change From Baseline in High-sensitivity C-reactive Protein (hs-CRP) at Week 72
Measured: Baseline and Week 72
Change From Baseline in Short Form 36 Health Survey Version 2 (SF-36v2) Acute Physical Function Domain Score at Week 72
The SF-36v2 Acute Physical Function domain score measures an individual's ability to perform daily physical activities, such as walking and climbing stairs, over the past week. It includes 10 items scored on a 3-point Likert scale, with raw scores transformed to a 0-100 scale. Higher scores indicate better physical functioning and fewer limitations due to physical health.
Measured: Baseline and Week 72
Number of Participants Experiencing Treatment-emergent Adverse Events (TEAEs)
Measured: Up to approximately 88 weeks
Plasma Concentration of Maridebart Cafraglutide at Week 72
Measured: Week 72
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Mar 2025
- Study start12 Mar 2025
- Primary completion21 Jan 2027 (estimated)
- Study completion16 Apr 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for ObesityStudies of the same condition, open and under way.
- More trials run by AmgenThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 3,853 participants (actual)
Sponsor and investigators
- Lead sponsor
- Amgen
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- MD, Study director, Amgen
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06858839
- Sponsor's protocol ID
- 20210181
- Other IDs
- 2024-515524-36
- Acronym
- MARITIME-1
- Status last verified
- Sep 2026
- First submitted
- 28 Feb 2025
- Last updated
- 17 Sep 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.
Study at a glance
From the registry record, last updated by the sponsor on 17 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 3 Randomized, Double-blind, Placebo-controlled Study to Evaluate the Efficacy, Safety, and Tolerability of Maridebart Cafraglutide in Adult Participants Without Type 2 Diabetes Mellitus Who Have Obesity or Are Overweight
- ClinicalTrials.gov ID
- NCT06858839
- Acronym / sponsor ID
- MARITIME-1 / 20210181
- Conditions
- Obesity
- Keywords
- Overweight, BMI, Body weight, Maridebart cafraglutide, Chronic weight management, MariTide
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 3,853 participants (actual)
- Lead sponsor
- AmgenIndustry (pharma, biotech, devices)
- Study start
- 12 Mar 2025 (actual)
- Primary completion
- 21 Jan 2027 (estimated)
- Study completion
- 16 Apr 2027 (estimated)
- First posted
- 5 Mar 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The primary objective of this study is to demonstrate that maridebart cafraglutide is superior to placebo for percent change in body weight.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Maridebart Cafraglutide High Dose | Experimental | Drug: Maridebart CafraglutideParticipants will receive maridebart cafraglutide high dose subcutaneously (SC) for 72 weeks. |
| Maridebart Cafraglutide Medium Dose | Experimental | Drug: Maridebart CafraglutideParticipants will receive maridebart cafraglutide medium dose SC for 72 weeks. |
| Maridebart Cafraglutide Low Dose | Experimental | Drug: Maridebart CafraglutideParticipants will receive maridebart cafraglutide low dose SC for 72 weeks. |
| Placebo | Placebo comparator | Drug: PlaceboParticipants will receive placebo SC for 72 weeks. |
Who may qualify
- Ages
- 18 to 99 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Age ≥ 18 years.
- Body mass index ≥ 30 kg/m2 or ≥27 kg/m² to < 30 kg/m2 with at least 1 of the following weight-related comorbidities: hypertension, dyslipidemia, history of obstructive sleep apnea, history of cardiovascular disease, history of metabolic dysfunction-associated steatotic liver disease (MASLD) or Metabolic Dysfunction-Associated Steatohepatitis (MASH).
- History of at least 1 self-reported unsuccessful attempt at weight loss by diet and exercise.
Key exclusion criteria (7 listed)
- Type 1 or Typ2 diabetes mellitus.
- Obesity induced by other endocrinologic disorders.
- Self-reported change in body weight > 5 kg within 90 days before screening.
- Family (first-degree relative[s]) or personal history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia syndrome type 2.
- History of chronic pancreatitis or history of acute pancreatitis within 180 days before screening.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Maridebart CafraglutideAlso: AMG 133, MariTideMaridebart cafraglutide will be administered SC. | Drug | Maridebart Cafraglutide High Dose, Maridebart Cafraglutide Low Dose, Maridebart Cafraglutide Medium Dose |
| PlaceboPlacebo will be administered SC. | Drug | Placebo |
Primary outcome
Percent Change From Baseline in Body Weight at Week 72
Time frame: Baseline and Week 72
20 secondary outcomes
Change From Baseline in Waist Circumference at Week 72
Time frame: Baseline and Week 72
Participant achieving ≥ 5% reduction in body weight from baseline at week 72
Time frame: Week 72
Participant achieving ≥ 10% reduction in body weight from baseline at week 72
Time frame: Week 72
Participant achieving ≥ 15% reduction in body weight from baseline at week 72
Time frame: Week 72
Participant achieving ≥ 20% reduction in body weight from baseline at week 72
Time frame: Week 72
Change From Baseline in Systolic Blood Pressure (SBP) at Week 72
Time frame: Baseline and Week 72
Percent Change From Baseline in Fasting Triglycerides at Week 72
Time frame: Baseline and Week 72
Change From Baseline in Fasting Glucose at Week 72
Time frame: Baseline and Week 72
Change From Baseline in the Impact of Weight on Quality of Life-Lite Clinical Trials Version (IWQOL-Lite-CT) Physical Function Composite Score at Week 72
Time frame: Baseline and Week 72
Change From Baseline in Body Weight at Week 72
Time frame: Baseline and Week 72
Change From Baseline in Body Mass Index (BMI) at Week 72
Time frame: Baseline and Week 72
Change From Baseline in Hemoglobin A1c at Week 72
Time frame: Baseline and Week 72
Percent Change From Baseline in Fasting Insulin at Week 72
Time frame: Baseline and Week 72
Change From Baseline in Glycemic Status at Week 72
Time frame: Baseline and Week 72
Percent Change From Baseline in Fasting Lipid Parameters at Week 72
Time frame: Baseline and Week 72
Change From Baseline in Diastolic Blood Pressure (DBP) at Week 72
Time frame: Baseline and Week 72
Percent Change From Baseline in High-sensitivity C-reactive Protein (hs-CRP) at Week 72
Time frame: Baseline and Week 72
Change From Baseline in Short Form 36 Health Survey Version 2 (SF-36v2) Acute Physical Function Domain Score at Week 72
Time frame: Baseline and Week 72
Number of Participants Experiencing Treatment-emergent Adverse Events (TEAEs)
Time frame: Up to approximately 88 weeks
Plasma Concentration of Maridebart Cafraglutide at Week 72
Time frame: Week 72
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Sep 2026.
- AmgenTrials clinical trials websiteLink provided by the sponsor.
- Individual participant dataSharing planned: Yes. De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
MD study director
Amgen
243 sites in 17 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Maridebart Cafraglutide in people with Obesity, run by Amgen at 243 sites in 17 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 17 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 243 sites in United States, Germany, South Korea, United Kingdom, Canada and 12 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Percent Change From Baseline in Body Weight at Week 72 (time frame: Baseline and Week 72). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Sep 2026; AzTrials last refreshed its copy on 7 Nov 2026.