Could mounjaro help a rare fat disorder? new trial aims to find out
NCT ID NCT07091734
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This phase 2 trial tests whether tirzepatide (Mounjaro), a drug already approved for diabetes and weight loss, can improve blood sugar and lower triglycerides in people with partial lipodystrophy—a rare condition where the body loses fat tissue. Researchers will compare tirzepatide plus usual care against usual care alone in 32 adults over 24 weeks. The goal is to see if the drug helps by reducing calorie intake.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Tirzepatide (Mounjaro)
- What this could lead to
- If it works, this could offer a new way to manage diabetes and high triglycerides in people with partial lipodystrophy, potentially improving metabolic health.
- What could go wrong
- This is a small, early-phase trial with only 32 participants, so results may not apply to everyone. Tirzepatide can cause gastrointestinal side effects, and it's not yet proven for this specific condition.
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 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 32 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2025
- Expected to finish
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Sep 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
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: * Patients (≥18 years old) with a diagnosis of familial partial lipodystrophy (per protocol) * Hemoglobin A1c ≥ 7.0% at screening and after 12-week run-in period and * Triglycerides ≥ 200 Milligrams Per Deciliter (mg/dL) at screening and after 12-week run-in period * Stable body weight during the 3 months prior to screening visit (no gain or loss of \>5% current body weight) * Diet must have been stable for the prior 3 months (i.e., no major change in macronutrient composition, e.g. starting or stopping diets such as Atkins, paleo, vegetarianism, veganism) * Patients must be willing and able to comply with clinic visits and study-related procedures (if patients cannot complete clinical outcomes assessments or unable to undergo magnetic resonance imaging (MRI), participants will not necessarily be excluded) Exclusion Criteria: * Diagnosis of generalized lipodystrophy or acquired lipodystrophy * Having received treatment with a Glucagon-like peptide (GLP) -1 agonist or Tirzepatide within the past 6 months * History of previous treatment with metreleptin within the past 3 months * Pancreatitis within the past 3 months * Patients with a medical history of bone morrow transplant, use of an immune check-point inhibitor, or central nervous system tumor involving the hypothalamus * Treatment with of receiving over the counter or prescription medications for weight loss within 3 months prior to the screening visit * Active treatment with oral glucocorticoids \>7.5 milligram (mg) prednisone equivalents per day or plans to begin treatment with oral glucocorticoids \>7.5 mg prednisone equivalents per day during the study period * Treatment with oral estrogens, aromatase inhibitors, Luteinizing hormone-releasing hormone (LHRH) agonists or systemic testosterone begun within 6 months prior to the screening visit * Any malignancy, e.g., lymphoma, within the past 1 year, prior to screening visit except for fully treated basal cell or squamous epithelial cell carcinomas of the skin or carcinoma in situ of the cervix or anus * A personal or family history of medullary thyroid carcinoma (MTC) or in patients with multiple endocrine neoplasia Type 2 (MEN 2) * History of heart failure hospitalization, myocardial infarction, stroke, clinically significant arrhythmia (e.g., ventricular tachycardia, or any arrhythmia requiring medication adjustment to control), transient ischemic attack, unstable angina, percutaneous or surgical revascularization procedure (coronary, carotid, or peripheral vascular), or intracardiac device placement (e.g., pacemaker) within 3 months before the screening visit * Advanced heart failure (New York Heart Association Class 3 to 4) or severe and uncontrolled hypertension * Current diagnosis of autoimmune Type 1 diabetes mellitus * History of human immunodeficiency virus (HIV) positivity or HIV positive at screening (to exclude HIV associated lipodystrophy). * Uncontrolled infection with hepatitis B or hepatitis C infection or known active tuberculosis by history at screening * A patient that has a documented, positive reverse-transcriptase polymerase chain reaction (RT-PCR) or serology test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) may be enrolled provided the patient has recovered from Coronavirus disease (COVID-19) (all COVID-19-related symptoms and have no major clinical findings which can potentially affect the safety of the patient) * Participation in any clinical research study evaluating an investigational product (IP) or therapy within 3 months and less than 5 half-lives of IP prior to the screening visit. Participation in clinical research studies that only involve procedures (e.g., muscle biopsies, glycemic clamps) or testing (eg, MRI) that will not interfere with the current study is permitted * Any physical examination findings and/or history of any illness that, in the opinion of the study investigator, might confound the results of the study or pose an additional risk to the patient by their participation in the study * Alcohol consumption \>21 drinks per week for males or \>14 drinks per week for females * Pregnant or breastfeeding persons. Patients, if engaged in sexual relations with/and of childbearing potential, must agree to use a highly effective contraceptive method from the time of signing the informed consent form until at least 4 weeks after the last dose of study drug * Sexually active adult men that are unwilling to use the following forms of medically acceptable birth control during the study drug treatment period and for 16 weeks after the last dose of study drug: vasectomy with medical assessment of surgical success OR consistent use of a condom. Sperm donation is prohibited during the study and for 16 weeks after the last dose of study drug * Known serious hypersensitivity to Tirzepatide or any of the excipients in Mounjaro
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of Michigan
RECRUITINGAnn Arbor, Michigan, 48109, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- New hope for rare fat disorder: daily leptin shots target blood sugar and fats
- PCOS study hunts for genetic clues behind severe insulin resistance
- Hope for rare fat disorder: new drug shows promise in Long-Term trial
- Hope for rare fat disorder: expanded access to metreleptin offered
- Fat storage mystery: new study probes rare disease
- Experimental drug targets rare fat Disorder's metabolic woes