New obesity drug shows promise in major japanese trial
NCT ID NCT06987695
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a new drug called maridebart cafraglutide to help adults in Japan with obesity lose weight. About 279 participants will receive either the drug or a placebo for 72 weeks. The main goals are to see how much weight they lose and if at least 5% of body weight is lost. This is a phase 3 trial, meaning it is in the final stage before possible approval.
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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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279 people
The number who actually took part.
- Started
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Jun 2025
- Expected to finish
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Jul 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 to 99 years
- 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: * Age ≥ 18 years. * History of at least 1 self-reported unsuccessful attempt at weight loss by diet and exercise. * Body mass index (BMI) ≥ 35 kg/m\^2 at screening with a current diagnosis of at least 1 of the weigh-related comorbidities specified in the Japan Society for the Study of Obesity (JASSO) guideline OR BMI ≥ 27 kg/m\^2 to \< 35 kg/m\^2 at screening, with a current diagnosis of at least 2 of the weight-related comorbidities specified in the JASSO guideline. * For both BMI categories, at least 1 of the weight-related comorbidities must be hypertension, dyslipidemia, or T2DM according to the definitions below: 1. hypertension: treated, or with SBP ≥ 140 mmHg, or DBP ≥ 90 mmHg at screening. 2. dyslipidemia: treated, or with LDL \> 140 mg/dL (3.6 mmol/L), or triglycerides ≥ 150 mg/dL (1.7 mmol/L), or non-HDL cholesterol \> 170 mg/dL (4.4 mmol/L) or HDL \< 40 mg/dL (1.0 mmol/L) at screening. 3. T2DM: diagnosed ≥ 180 days before screening, and treated with diet and exercise alone and/or a stable treatment for at least 90 days before screening with up to 3 oral glucose-lowering medications (as per local labeling) (except for glucagon-like peptide-1 receptor agonists \[GLP-1RA\] and dipeptidyl peptidase-4 \[DPP-4\] inhibitors), and have a HbA1c ≥ 7% and ≤ 10% (53-86 mmol/mol) at screening. * In the opinion of the investigator, well-motivated and willing to: 1. Follow study procedures for the duration of the study, including, but not limited to, follow lifestyle advice, maintain a study log(s)/diary(ies), and complete required study visits and questionnaires. 2. Perform self-monitoring blood glucose (SMBG) per protocol (only for participants with T2DM). Exclusion Criteria: * Obesity induced by other endocrinological disorders or monogenetic or syndromic forms of obesity. * Self-reported change in body weight \> 5 kg within 90 days before screening. * Previous or planned (during the study) surgical, endoscopic, or device-based treatment for obesity. * For participants without diabetes at screening, type 1 or 2 diabetes mellitus or any other types of diabetes mellitus (except history of gestational diabetes). * For participants with T2DM at screening, any other type(s) of diabetes mellitus except T2DM. * History of chronic pancreatitis or history of acute pancreatitis within 180 days before screening. * Family (first-degree relative\[s\]) or personal history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia syndrome type 2 (MEN-2). * History of unstable major depressive disorder (MDD) or other severe psychiatric disorder within 2 years before screening. * Lifetime history of suicide attempt.
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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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Adachi Kyosai Hospital
Adachi-ku, Tokyo, 120-0022, Japan
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Aira Diabetes Thyroid Internal Medicine Clinic
Aira-shi, Kagoshima-ken, 899-5421, Japan
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Deguchi Clinic
Kobe, Hyōgo, 652-0803, Japan
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Fukuoka Shinmizumaki Hospital
Onga-gun, Fukuoka, 807-0051, Japan
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Hosokawa Surgical Clinic
Nagoya, Aichi-ken, 453-0812, Japan
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Ikebukuro Metropolitan Clinic
Toshima-ku, Tokyo, 171-0021, Japan
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Joh Medical Clinic
Osaka, Osaka, 530-0002, Japan
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Kobe University Hospital
Kobe, Hyōgo, 650-0017, Japan
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Kyoto University Hospital
Kyoto, Kyoto, 606-8507, Japan
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Kyushu University Hospital
Fukuoka, Fukuoka, 812-8582, Japan
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MIH Clinic Yoyogi
Shibuya-ku, Tokyo, 151-0051, Japan
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Manda Memorial Hospital
Sapporo, Hokkaido, 060-0062, Japan
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Matsuba Clinic
Kawasaki-shi, Kanagawa, 212-0024, Japan
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Matsunami Health Promotion Clinic
Hashima-gun, Gifu, 501-6061, Japan
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Medical Corporation Boocs Boocs Clinic Fukuoka
Fukuoka, Fukuoka, 812-0025, Japan
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Medical Corporation Chiseikai Tokyo Center Clinic
Chuo-ku, Tokyo, 103-0027, Japan
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Medical Corporation Keiseikai Kajiyama Clinic
Kyoto, Kyoto, 600-8898, Japan
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Medical Corporation Kenshinkai Minamino Cardiovascular Hospital
Hachioji-shi, Tokyo, 192-0918, Japan
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Meitetsu Hospital
Nagoya, Aichi-ken, 451-8511, Japan
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Midori Clinic
Nagasaki, Nagasaki, 852-8034, Japan
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Nihonbashi Sakura Clinic
Chuo-ku, Tokyo, 103-0025, Japan
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Nishiyamado Keiwa Hospital
Naka, Ibaraki, 311-0133, Japan
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Shimamura Memorial Hospital
Nerima-ku, Tokyo, 177-0051, Japan
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Shinjuku Southern Clinic
Shinjuku-ku, Tokyo, 160-0023, Japan
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Social Medical Corporation Kojunkai Daido Clinic
Nagoya, Aichi-ken, 457-8511, Japan
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Tashiro Endocrinology Clinic
Fukuoka, Fukuoka, 814-0153, Japan
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Tokyo Saiseikai Central Hospital
Minato-ku, Tokyo, 108-0073, Japan
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Urasoe General Hospital
Urasoe-shi, Okinawa, 901-2102, Japan
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Wellness Tenjin Clinic
Fukuoka, Fukuoka, 810-0001, Japan
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Yamasaki Family Clinic
Amagasaki-shi, Hyōgo, 660-0861, Japan