ObesityPhase 2NCT06901349
A Study of Bimagrumab (LY3985863) and Tirzepatide (LY3298176), Alone or in Combination, in Participants With Obesity or Overweight With Type 2 Diabetes
A Phase 2 study testing Bimagrumab and Tirzepatide in people with Obesity and Overweight, run by Eli Lilly and Company at 50 sites in 5 countries.
Trial summary
The main purpose of this study is to see how well and how safely bimagrumab, tirzepatide, and the combination, work in lowering body weight in participants with obesity or overweight and type 2 diabetes. Participation in the study will last about 13 months. Read more about this study
- Who is it for?
- Ages 18 to 75 years
- Conditions the study is for
- Obesity, Overweight
- What is being tested?
- Bimagrumab and Tirzepatide
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 0 participants
- Where
- 50 sitesin 5 countries
- Study dates
- 23 May 2025to 10 Jun 2025
- Phase
- Phase 2
- Are there results?
- None posted in the registry
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 75 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Have type 2 diabetes
- Have a BMI of ≥27 kilograms per square meter (kg/m2)
- Have had a stable body weight for the 3 months prior to randomization (<5% body weight gain and/or loss)
Who cannot join
- Have a prior or planned surgical treatment for obesity,
- Have type 1 diabetes, latent autoimmune diabetes, or history of ketoacidosis or hyperosmolar state or coma
- Have poorly controlled hypertension
- Have any of the following cardiovascular conditions within 3 months prior to screening:
- acute myocardial infarction
- cerebrovascular accident (stroke)
Show all 17Show fewer
- unstable angina, or
- hospitalization due to congestive heart failure
- Have a history of New York Heart Association (NYHA) Functional Classification III or IV congestive heart failure
- Have ongoing or a history of frequent intermittent or chronic tachyarrhythmia syndromes
- Have ongoing or a history of bradyarrhythmias other than sinus bradycardia
- Have renal impairment
- Have a history of symptomatic gallbladder disease within the past 2 years
- Have signs and symptoms of any liver disease
- Have a disease or condition known to cause gastrointestinal malabsorption or a known clinically significant gastric emptying abnormality
- Have a history of acute or chronic pancreatitis
- Currently taking or have taken medications that may cause significant weight gain or promote weight loss within 3 months prior to screening
Trial locations and contacts
50 sites in 5 countries.
50 sites in 5 countries
United States25 sites
Great Lakes Research Group, Inc.
Bay City, Michigan, 48706
Northwest Clinical Research Center
Bellevue, Washington, 98007
Bingham Memorial Hospital
Blackfoot, Idaho, 83221
Excel Medical Clinical Trials
Boca Raton, Florida, 33434
University of North Carolina Medical Center
Chapel Hill, North Carolina, 27514
Kur Research - Columbia Medical
Columbia, Maryland, 21045
Remington-Davis, Inc
Columbus, Ohio, 43215
Velocity Clinical Research, Dallas
Dallas, Texas, 75230
East-West Medical Research Institute
Honolulu, Hawaii, 96814
PlanIt Research, PLLC
Houston, Texas, 77079
Family First Medical Center
Idaho Falls, Idaho, 83404
Clinical Neuroscience Solutions, Inc. dba CNS Healthcare
Jacksonville, Florida, 32256
Activian Clinical Research
Kingwood, Texas, 77339
Orange County Research Center
Lake Forest, California, 92630
Balanced Life Health Care Solutions/SKYCRNG
Lawrenceville, Georgia, 30046
Healthy Brain Clinic
Long Beach, California, 90804
L&C Professional Medical Research Institute
Miami, Florida, 33144
Global Health Research Center, Inc.
Miami Lakes, Florida, 33016
Deaconess Clinic- Gateway
Newburgh, Indiana, 47630
Valley Clinical Trials, Inc.
Northridge, California, 91325
Charter Research - Winter Park
Orlando, Florida, 32803
Charter Research - Lady Lake
The Villages, Florida, 32162
Central States Research
Tulsa, Oklahoma, 74136
Diablo Clinical Research, Inc.
Walnut Creek, California, 94598
Yuma Clinical Trials
Yuma, Arizona, 85364
Japan8 sites
Hayashi Diabetes Internal Medicine Clinic
Chigasaki, Kanagawa, 253-0044
The Institute of Medical Science, Asahi Life Foundation
Chuo-ku, Tokyo, 103-0002
Tokyo-Eki Center-building Clinic
Chuo-ku, Tokyo, 103-0027
Fukuwa Clinic
Chuo-ku, Tokyo, 104-0031
Shonan Takai Clinic
Kamakura, Kanagawa, 247-0055
Takai Internal Medicine Clinic
Kamakura-shi, Kanagawa, 247-0056
Tokuyama Clinic
Mihama-ku,Chiba City, Chiba, 261-0004
Medical Corporation Heishinkai OCROM Clinic
Suita-shi, Osaka, 565-0853
Canada7 sites
Centricity Research Brampton Endocrinology
Brampton, Ontario, L6S 0C6
Premier Clinical Trial Network
Hamilton, Ontario, L8L 5G4
Your Research Network
Niagara Falls, Ontario, L2H 1H5
Centricity Research Pointe-Claire Multispecialty
Pointe-Claire, Quebec, H9R 4S3
Diex Recherche Quebec
Québec, G1V 4T3
Richmond Clinical Trials
Richmond, British Columbia, V6V 2L1
Diex Recherche Trois-Rivieres
Trois-Rivières, Quebec, G9A 4P3
China6 sites
The Fourth Affiliated Hospital of Harbin Medical University
Harbin, Heilongjiang, 150001
Jinan Central Hospital
Jinan, Shandong, 250013
The First Affiliated Hospital of Henan University of Science &Technology
Luoyang Shi, Henan, 471003
The Second Affiliated Hospital of Nanjing Medical University
Nanjing, Jiangsu, 210011
Shanghai Sixth People's Hospital
Shanghai, Shanghai Municipality
The First Affiliated Hospital of Soochow University
Suzhou, Jiangsu, 215006
Argentina4 sites
CIPREC
Buenos Aires, Buenos Aires F.D., C1119ACN
Centro Médico Viamonte
Buenos Aires, Buenos Aires F.D., C1120AAC
Consultorio de Investigación Clínica EMO SRL
Buenos Aires, Buenos Aires F.D., C1405BUB
CIPREC
Buenos Aires, C1061AAS
About this study
Official title: A Phase 2b Double-Blind, Randomized, Placebo-Controlled Study of Bimagrumab and Tirzepatide, Alone or in Combination, to Investigate the Efficacy and Safety in Adult Participants With Obesity or Overweight With Type 2 Diabetes
The main purpose of this study is to see how well and how safely bimagrumab, tirzepatide, and the combination, work in lowering body weight in participants with obesity or overweight and type 2 diabetes. Participation in the study will last about 13 months.
- Conditions
- Obesity, Overweight
- Being tested
- Bimagrumab, Tirzepatide, Bimagrumab Placebo, Tirzepatide Placebo
- Keywords
- Type 2 Diabetes, Muscle, Lean, Fat
- Medical subject headings
- Obesity, Overweight, Diabetes Mellitus, Type 2, Platelet Glycoprotein IV Deficiency
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
BimagrumabDrug
Also called LY3985863
Administered SC
TirzepatideDrug
Also called LY3298176
Administered SC
Bimagrumab PlaceboDrug
Administered SC
Tirzepatide PlaceboDrug
Administered SC
| Study group | Role | What they receive |
|---|---|---|
| Bimagrumab Dose 1 + Tirzepatide Placebo | Experimental | Participants will receive bimagrumab subcutaneously (SC) and tirzepatide placebo SC Receives: Drug: Bimagrumab; Drug: Tirzepatide Placebo |
| Bimagrumab Dose 2 + Tirzepatide Placebo | Experimental | Participants will receive bimagrumab SC and tirzepatide placebo SC Receives: Drug: Bimagrumab; Drug: Tirzepatide Placebo |
| Tirzepatide Dose 1 + Bimagrumab Placebo | Experimental | Participants will receive tirzepatide SC and bimagrumab placebo SC Receives: Drug: Tirzepatide; Drug: Bimagrumab Placebo |
| Tirzepatide Dose 2 + Bimagrumab Placebo | Experimental | Participants will receive tirzepatide SC and bimagrumab placebo SC Receives: Drug: Tirzepatide; Drug: Bimagrumab Placebo |
| Bimagrumab Dose 2 + Tirzepatide Dose 1 | Experimental | Participants will receive bimagrumab SC and tirzepatide SC Receives: Drug: Bimagrumab; Drug: Tirzepatide |
| Bimagrumab Dose 1 + Tirzepatide Dose 1 | Experimental | Participants will receive bimagrumab SC and tirzepatide SC Receives: Drug: Bimagrumab; Drug: Tirzepatide |
| Bimagrumab Dose 2 + Tirzepatide Dose 2 | Experimental | Participants will receive bimagrumab SC and tirzepatide SC Receives: Drug: Bimagrumab; Drug: Tirzepatide |
| Bimagrumab Dose 1 + Tirzepatide Dose 2 | Experimental | Participants will receive bimagrumab SC and tirzepatide SC Receives: Drug: Bimagrumab; Drug: Tirzepatide |
| Bimagrumab Placebo + Tirzepatide Placebo | Placebo comparator | Participants will receive bimagrumab placebo SC and tirzepatide placebo SC Receives: Drug: Bimagrumab Placebo; Drug: Tirzepatide 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
Measured: Baseline, Week 36
Secondary outcomes (15)
Percent Change from Baseline in Total Body Fat Mass by Dual-Energy X-Ray Absorptiometry (DXA)
Measured: Baseline, Week 36
Change from Baseline in Hemoglobin A1c (HbA1c)
Measured: Baseline, Week 36
Percentage of Participants Achieving ≥5% Body Weight Reduction
Measured: Baseline, Week 36
Percentage of Participants Achieving ≥10% Body Weight Reduction
Measured: Baseline, Week 36
Percentage of Participants Achieving ≥15% Body Weight Reduction
Measured: Baseline, Week 36
Change from Baseline in Waist Circumference
Measured: Baseline, Week 36
Change from Baseline in Body Mass Index (BMI)
Measured: Baseline, Week 36
Change from Baseline in Waist-to-Height Ratio (WHtR)
Measured: Baseline, Week 36
Percent Change from Baseline in Visceral Adipose Tissue (VAT) by Magnetic Resonance Imaging (MRI)
Measured: Baseline, Week 36
Change from Baseline in Liver Fat by MRI
Measured: Baseline, Week 36
Percent Change from Baseline in High-Sensitivity C-Reactive Protein (hsCRP)
Measured: Baseline, Week 36
Percent Change from Baseline in Total Cholesterol
Measured: Baseline, Week 36
Percent Change from Baseline in Triglycerides (TG)
Measured: Baseline, Week 36
Change from Baseline in Systolic Blood Pressure (SBP)
Measured: Baseline, Week 36
Pharmacokinetics (PK): Steady State Area Under the Concentration Time Curve (AUC-ss) of Bimagrumab
Measured: Predose through Week 52
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Mar 2025
- Study start23 May 2025
- Primary completion10 Jun 2025
- Study completion10 Jun 2025
Why it stopped: Study terminated for strategic business reasons
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 Eli Lilly and CompanyThe 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 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 0 participants (actual)
Sponsor and investigators
- Lead sponsor
- Eli Lilly and Company
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 9 AM - 5 PM Eastern time (UTC/GMT - 5 hours, EST), Study director, Eli Lilly and Company
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06901349
- Sponsor's protocol ID
- 27328
- Other IDs
- J4Z-MC-GIDI
- Status last verified
- Sep 2025
- First submitted
- 24 Mar 2025
- Last updated
- 24 Sep 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: Anonymized individual patient level data will be provided in a secure access environment upon approval of a research proposal and a signed data sharing agreement.
Study at a glance
From the registry record, last updated by the sponsor on 24 Sep 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 2b Double-Blind, Randomized, Placebo-Controlled Study of Bimagrumab and Tirzepatide, Alone or in Combination, to Investigate the Efficacy and Safety in Adult Participants With Obesity or Overweight With Type 2 Diabetes
- ClinicalTrials.gov ID
- NCT06901349
- Acronym / sponsor ID
- 27328
- Conditions
- Obesity, Overweight
- Keywords
- Type 2 Diabetes, Muscle, Lean, Fat
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- WithdrawnReason stopped: Study terminated for strategic business reasons
- Enrolment
- 0 participants (actual)
- Lead sponsor
- Eli Lilly and CompanyIndustry (pharma, biotech, devices)
- Study start
- 23 May 2025 (actual)
- Primary completion
- 10 Jun 2025 (actual)
- Study completion
- 10 Jun 2025 (actual)
- First posted
- 28 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 main purpose of this study is to see how well and how safely bimagrumab, tirzepatide, and the combination, work in lowering body weight in participants with obesity or overweight and type 2 diabetes. Participation in the study will last about 13 months.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 9
| Arm | Type | Receives |
|---|---|---|
| Bimagrumab Dose 1 + Tirzepatide Placebo | Experimental | Drug: Bimagrumab, Drug: Tirzepatide PlaceboParticipants will receive bimagrumab subcutaneously (SC) and tirzepatide placebo SC |
| Bimagrumab Dose 2 + Tirzepatide Placebo | Experimental | Drug: Bimagrumab, Drug: Tirzepatide PlaceboParticipants will receive bimagrumab SC and tirzepatide placebo SC |
| Tirzepatide Dose 1 + Bimagrumab Placebo | Experimental | Drug: Tirzepatide, Drug: Bimagrumab PlaceboParticipants will receive tirzepatide SC and bimagrumab placebo SC |
| Tirzepatide Dose 2 + Bimagrumab Placebo | Experimental | Drug: Tirzepatide, Drug: Bimagrumab PlaceboParticipants will receive tirzepatide SC and bimagrumab placebo SC |
| Bimagrumab Dose 2 + Tirzepatide Dose 1 | Experimental | Drug: Bimagrumab, Drug: TirzepatideParticipants will receive bimagrumab SC and tirzepatide SC |
| Bimagrumab Dose 1 + Tirzepatide Dose 1 | Experimental | Drug: Bimagrumab, Drug: TirzepatideParticipants will receive bimagrumab SC and tirzepatide SC |
| Bimagrumab Dose 2 + Tirzepatide Dose 2 | Experimental | Drug: Bimagrumab, Drug: TirzepatideParticipants will receive bimagrumab SC and tirzepatide SC |
| Bimagrumab Dose 1 + Tirzepatide Dose 2 | Experimental | Drug: Bimagrumab, Drug: TirzepatideParticipants will receive bimagrumab SC and tirzepatide SC |
| Bimagrumab Placebo + Tirzepatide Placebo | Placebo comparator | Drug: Bimagrumab Placebo, Drug: Tirzepatide PlaceboParticipants will receive bimagrumab placebo SC and tirzepatide placebo SC |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Have type 2 diabetes
- Have a BMI of ≥27 kilograms per square meter (kg/m2)
- Have had a stable body weight for the 3 months prior to randomization (<5% body weight gain and/or loss)
Key exclusion criteria (17 listed)
- Have a prior or planned surgical treatment for obesity,
- Have type 1 diabetes, latent autoimmune diabetes, or history of ketoacidosis or hyperosmolar state or coma
- Have poorly controlled hypertension
- Have any of the following cardiovascular conditions within 3 months prior to screening:
- Have a history of New York Heart Association (NYHA) Functional Classification III or IV congestive heart failure
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 |
|---|---|---|
| BimagrumabAlso: LY3985863Administered SC | Drug | Bimagrumab Dose 1 + Tirzepatide Dose 1, Bimagrumab Dose 1 + Tirzepatide Dose 2, Bimagrumab Dose 1 + Tirzepatide Placebo, Bimagrumab Dose 2 + Tirzepatide Dose 1, Bimagrumab Dose 2 + Tirzepatide Dose 2, Bimagrumab Dose 2 + Tirzepatide Placebo |
| TirzepatideAlso: LY3298176Administered SC | Drug | Bimagrumab Dose 1 + Tirzepatide Dose 1, Bimagrumab Dose 1 + Tirzepatide Dose 2, Bimagrumab Dose 2 + Tirzepatide Dose 1, Bimagrumab Dose 2 + Tirzepatide Dose 2, Tirzepatide Dose 1 + Bimagrumab Placebo, Tirzepatide Dose 2 + Bimagrumab Placebo |
| Bimagrumab PlaceboAdministered SC | Drug | Bimagrumab Placebo + Tirzepatide Placebo, Tirzepatide Dose 1 + Bimagrumab Placebo, Tirzepatide Dose 2 + Bimagrumab Placebo |
| Tirzepatide PlaceboAdministered SC | Drug | Bimagrumab Dose 1 + Tirzepatide Placebo, Bimagrumab Dose 2 + Tirzepatide Placebo, Bimagrumab Placebo + Tirzepatide Placebo |
Primary outcome
Percent Change from Baseline in Body Weight
Time frame: Baseline, Week 36
15 secondary outcomes
Percent Change from Baseline in Total Body Fat Mass by Dual-Energy X-Ray Absorptiometry (DXA)
Time frame: Baseline, Week 36
Change from Baseline in Hemoglobin A1c (HbA1c)
Time frame: Baseline, Week 36
Percentage of Participants Achieving ≥5% Body Weight Reduction
Time frame: Baseline, Week 36
Percentage of Participants Achieving ≥10% Body Weight Reduction
Time frame: Baseline, Week 36
Percentage of Participants Achieving ≥15% Body Weight Reduction
Time frame: Baseline, Week 36
Change from Baseline in Waist Circumference
Time frame: Baseline, Week 36
Change from Baseline in Body Mass Index (BMI)
Time frame: Baseline, Week 36
Change from Baseline in Waist-to-Height Ratio (WHtR)
Time frame: Baseline, Week 36
Percent Change from Baseline in Visceral Adipose Tissue (VAT) by Magnetic Resonance Imaging (MRI)
Time frame: Baseline, Week 36
Change from Baseline in Liver Fat by MRI
Time frame: Baseline, Week 36
Percent Change from Baseline in High-Sensitivity C-Reactive Protein (hsCRP)
Time frame: Baseline, Week 36
Percent Change from Baseline in Total Cholesterol
Time frame: Baseline, Week 36
Percent Change from Baseline in Triglycerides (TG)
Time frame: Baseline, Week 36
Change from Baseline in Systolic Blood Pressure (SBP)
Time frame: Baseline, Week 36
Pharmacokinetics (PK): Steady State Area Under the Concentration Time Curve (AUC-ss) of Bimagrumab
Time frame: Predose through Week 52
Results and safety
The study was withdrawn before enrolling participants, so there are no results.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Sep 2025.
- A Study of Bimagrumab (LY3985863) and Tirzepatide (LY3298176), Alone or in Combination, in Participants with Obesity or Overweight with Type 2 DiabetesLink provided by the sponsor.
- Individual participant dataSharing planned: Yes. Anonymized individual patient level data will be provided in a secure access environment upon approval of a research proposal and a signed data sharing agreement.
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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.
Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 9 AM - 5 PM Eastern time (UTC/GMT - 5 hours, EST) study director
Eli Lilly and Company
50 sites in 5 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Bimagrumab and Tirzepatide in people with Obesity and Overweight, run by Eli Lilly and Company at 50 sites in 5 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 17 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: withdrawn, as of the sponsor's last update on 24 Sep 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 50 sites in United States, Japan, Canada, China, Argentina. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study was withdrawn before enrolling participants, so there are no results.
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 (time frame: Baseline, Week 36). 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 24 Sep 2025.