A Phase 1 interventional study of Macupatide and Eloralintide in Obesity and Overweight, sponsored by Eli Lilly and Company. Not yet recruiting at 3 sites in Japan. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-08-14.
Sponsored by Eli Lilly and Company · Phase 1, Interventional, and Basic science
Among 22 studies testing eloralintide in Obesity — 14 open to participants now, 15 under way, 8 of them phase 3. eloralintide · Obesity.
Among the 22 studies testing eloralintide in Obesity, this one is the 19th largest by planned enrollment, is one of 12 that started in 2026, is one of 9 in phase 1, reaches primary completion later than 2 of the 14 other live ones, and was the 18th registered.
11,522 studies on the registry are indexed under Obesity; 2,033 are open to participants now.
Browse Obesity studies →14 of the 22 studies testing eloralintide in Obesity are open now, in 12 countries. Recruiting first, the newest first:
Eli Lilly and Company · Sites in United States, Brazil, China and 7 more countries
Eli Lilly and Company · Sites in United States
Eli Lilly and Company · Sites in United States, Singapore
Eli Lilly and Company · Sites in Germany, Sweden
Eli Lilly and Company · Sites in United States
By country, each count listing its studies:
No approval found in the FDA or EMA files read. How studies give it is on its page →
Of the 1,336 Obesity studies recruiting now, 377 (28%) set no upper age limit and 856 (64%) stop at 75 or younger; 168 take children under 18; 491 take healthy volunteers.
This study: 18 Years to 65 Years · all sexes · healthy volunteers too.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
22 studies; the count open now beside each. This study's row is marked.
First in 2022; this study’s year is marked. 12 started in 2026.
This study's planned enrollment of 60 is below the median of 67 across 9,006 interventional studies indexed under Obesity.
Median enrollment 315 across the 22 interventional studies. Of the 7 that completed or were terminated, 1 (14%) have results posted.
This tab as a report to print or save as PDF → With an account.
22 of 22 have an industry lead sponsor. The 1 most frequent:
Eli Lilly and Company is the lead sponsor of 2,106 studies on the registry; 152 are open to participants now.
Of its 536 completed or terminated interventional studies of FDA-regulated products, 357 (67%) have results posted.
117 studies in Obesity by Eli Lilly and Company: 31 open now, 55 under way, 30 of them phase 3. Of 60 finished, 28 (47%) have results posted.
Among the 117 studies in Obesity by Eli Lilly and Company, this one is the 98th largest by planned enrollment of the 116 interventional ones that give a count, is one of 25 that started in 2026, is one of 40 in phase 1, reaches primary completion later than 17 of the 54 other live ones, and was the 105th registered.
Eli Lilly and Company’s Obesity studies by the year they started, since 2009.
7 of the studies testing eloralintide in Obesity that are under way reach primary completion within a year, 0 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT07738614Eli Lilly and CompanyA Study of Eloralintide (LY3841136) in Participants With Obesity or Overweight | 2026-12 |
| NCT07215559Eli Lilly and CompanyA Study of Macupatide (LY3532226) and Eloralintide (LY3841136), Alone or in Combination, in Adults With Obesity or Overweight and With Type 2 Diabetes | 2027-03 |
| NCT07808060Eli Lilly and CompanyA Study of Eloralintide (LY3841136) in Female Participants With Obesity or Overweight | 2027-06 |
| NCT07765511Eli Lilly and CompanyA Study of Macupatide (LY3532226) in Participants With Obesity or Overweight Without Type 2 Diabetes | 2027-06 |
| NCT07665879Eli Lilly and CompanyA Study of Eloralintide (LY3841136) in Participants With Overweight or Obesity | 2027-08 |
Among the 22 studies testing eloralintide in Obesity, from their registry updates:
Among Eli Lilly and Company’s 117 in Obesity:
This tab as a report to print or save as PDF → With an account.
The main purpose of this study is to assess how well macupatide, when dosed alone and in combination with eloralintide, is tolerated and what side effects may occur in participants with obesity or overweight without Type 2 diabetes. Blood tests will be performed to investigate how the body processes the study drug and how the study drug affects the body. For each participant, the study will last about 4 months and will include 2 stays in the Clinical Research Unit (CRU), each lasting 3-5 nights.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Macupatide and placebo administered subcutaneously (SC)
Drug: Macupatide · Drug: Placebo
Eloralintide and placebo administered SC
Drug: Eloralintide · Drug: Placebo
Macupatide and Eloralintide administered SC
Drug: Macupatide · Drug: Eloralintide
Macupatide and Eloralintide administered SC
Drug: Macupatide · Drug: Eloralintide
Placebo administered SC
Drug: Placebo
Administered SC
Also known as: LY3532226
Administered SC
Administered SC
Number of Participants with One or More Serious Adverse Event(s) (SAEs) Considered by the Investigator to be Related to Study Drug Administration
Time frame: End of Study (Week 25)
Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve (AUC) of Macupatide
Time frame: Baseline through Week 25
PK: AUC of Macupatide in Combination with Eloralintide
Time frame: Baseline through Week 25
PK: Maximum Concentration (Cmax) of Macupatide
Time frame: Baseline through Week 25
PK: Cmax of Macupatide in Combination with Eloralintide
Time frame: Baseline through Week 25
Percent Change in Body Weight
Time frame: Baseline through Week 25
Plan to share: No
No publications or documents are linked to this record.
Start is estimated for Oct 2026; primary completion for Jun 2027, 8 months later.
Of 334 industry-sponsored phase 1 interventional studies under Obesity, half reached primary completion within 9 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 15. This study's planned 8 months is below that.
Counting every sponsor, half of 439 studies reached it within 11 months; a quarter within 6 and three quarters within 24.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.
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Studies of the drugs tested here: Macupatide · Eloralintide