ClinicalTrials.gg
RecruitingNCT07096908Updated Apr 20, 2026

Tirzepatide Use in People With Obesity and Type 1 Diabetes

A Phase 4 interventional study of Tirzepatide and Placebo in Type1diabetes and Obesity, sponsored by Dasman Diabetes Institute. Recruiting at 1 site in Kuwait. Open to participants aged 21 Years and older. Per ClinicalTrials.gov, last updated 2026-04-20.

Sponsored by Dasman Diabetes Institute · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Started Jul 2025; still recruiting 1 year 3 months later.
Phase
Phase 4
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
21 Years and older
Sex
All
01

Study summary

Tirzepatide, a gut hormone-based medication, has shown promising results in treating obesity, with \~22% weight loss and mild side effects. However, patients with type 2 diabetes typically experience only about 15% weight loss with tirzepatide, despite tolerating the medication well. Its effects in people with both obesity and type 1 diabetes remain largely unknown.

Although tirzepatide is not approved for glycemic control in type 1 diabetes, it is licensed for obesity treatment in Gulf and Europe. In Kuwait, more than a quarter of people with type 1 diabetes also have obesity, presenting a unique opportunity to study tirzepatide's impact.

This randomized, double-blind controlled trial will evaluate the safety and efficacy of tirzepatide in patients with type 1 diabetes and obesity, comparing usual care with the maximum tolerable dose of tirzepatide to assess its impact on weight loss. The findings may help address important safety concerns and have the potential to inform and influence future clinical practice.

02

Conditions studied

  • Type1diabetes
  • Obesity

Keywords

  • T1D
  • tirzepatide
  • weight loss
  • obesity
03

In context

Obesity

11,522 studies on the registry are indexed under Obesity; 2,033 are open to participants now.

This study's planned enrollment of 60 is below the median of 67 across 9,006 interventional studies indexed under Obesity.

Browse Obesity studies →

Lead sponsor

Dasman Diabetes Institute is the lead sponsor of 31 studies on the registry; 14 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
21 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

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.

Inclusion criteria

  1. obtained before any trial-related activities.
  2. Male or female, adults.
  3. Documented diagnosis of T1DM (per ADA 2024definition/criteria) for at least 1 year before screening visit with C-peptide level of less than 0.01nm/L.
  4. (BMI) ≥ 27.0 kg/m2
  5. History of at least one self-reported unsuccessful dietary effort to lose body weight.
  6. Must be using a Continuous Glucose Monitoring (CGM) device for at least 2 months before the screening visit and be willing to wear a CGM device for the duration of the study.

Exclusion criteria

Exclusion Criteria:

  1. Diabetes related:

    • (HbA1c) ≥86 mmol/mol (10%) as measured by the central laboratory at screening.
    • Treatment with a glucagon-like peptide-1 receptor agonist within 180 days before screening.
    • Preproliferative or proliferative retinopathy
    • Experienced diabetic ketoacidosis within 6 months of screening visit.
    • Experienced severe hypoglycemia (Level 3) within 6 months of screening visit.
  2. Obesity-related:

    • A self-reported change in body weight >5 kg (11 lbs) within 90 days before screening irrespective of medical records.
    • Treatment with any medication for the indication of obesity within the past 90 days before screening.
    • Previous or planned (during the trial period) obesity treatment with surgery or a weight-loss device. However, the following are allowed: (1) liposuction and/or abdominoplasty, if performed >1 year before screening; (2) lap banding, if the band has been removed >1 year before screening; (3) intragastric balloon, if the balloon has been removed >1 year before screening; or (4) duodenal-jejunal bypass sleeve, if the sleeve has been removed >1 year before screening.
    • Uncontrolled thyroid disease, defined as thyroid stimulating hormone >6.0 mIU/L or \<0.4 mIU/L as measured by the central laboratory at screening.
  3. Mental health:

    • History of major depressive disorder within 2 years before screening.
    • Diagnosis of other severe psychiatric disorder (e.g. schizophrenia, bipolar disorder).
    • A Patient Health Questionnaire-9 score of ≥15 at screening.
    • A lifetime history of a suicidal attempt.
    • Suicidal behavior within 30 days before screening.
    • Suicidal ideation corresponding to type 4 or 5 on the Columbia-Suicide Severity Rating Scale within the past 30 days before screening.
  4. General safety:

    • Use of non-herbal Chinese medicine or other non-herbal local medicine with unknown/unspecified content within 90 days before screening.
    • Presence of acute pancreatitis within the past 180 days prior to the day of screening.
    • History or presence of chronic pancreatitis.
    • Calcitonin ≥100 ng/L as measured by the central laboratory at screening.
    • Personal or first-degree relative(s) history of multiple endocrine neoplasia type 2 or medullary thyroid carcinoma.
    • Renal impairment measured as estimated value of \<15 mL/min/1.73m2 as defined by KDIGO 2012 by the central laboratory at screening.
    • History of malignant neoplasms within the past 5 years prior to screening. Basal and squamous cell skin cancer and any carcinoma in-situ are allowed.
    • Any of the following: myocardial infarction, stroke, hospitalization for unstable angina, or within the past 60 days prior to screening.
    • Subject presently classified as being in Class IV.
    • Surgery scheduled for the duration of the trial, except for minor surgical procedures, in the opinion of the investigator.
    • Known or suspected abuse of alcohol or recreational drugs.
    • Known or suspected to trial product(s) or related products.
    • Previous participation in this trial. Participation is defined as signed .
    • Participation in another clinical trial within 90 days before screening.
    • Other subject(s) from the same household participating in any semaglutide trial.
    • Female who is pregnant, breast-feeding, or intends to become pregnant, or is of and not using a highly effective method.
    • Any disorder, unwillingness, or inability, not covered by any of the other exclusion criteria, which in the investigator's opinion, might jeopardize the subject's safety or compliance with the protocol.
Terms in these criteria, in plain language(9)

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.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

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.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

TIA (transient ischaemic attack)

A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.

Stroke symptoms need emergency care at once, even if they go away.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

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.

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.

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.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    Tirzepatide

    Tirzepatide subcutaneous injections will be given weekly for 76 weeks. Starting dose will be 2.5mg and dose will be increased gradually, by increments of 2.5mg, every 4 weeks to reach 15 mg at week 24 based on patient's tolerability of side effects (i.e. starting dose 2.5 mg, then dose will be increased to 5 mg, 7.5mg,10 mg, 12.5mg then finally 15 mg).

    Drug: Tirzepatide

  • Placebo comparator
    Placebo

    an equivalent volume of normal saline 0.9% will be given to the placebo arm.

    Drug: Placebo

Interventions

  • weekly injections

  • DrugPlacebo

    weekly injections

    Also known as: Normal Saline 0.9%

06

What researchers measure

Primary outcomes

  1. Bodyweight

    Percent body weight change (%)

    Time frame: 76 weeks

Secondary outcomes

  1. HbA1c

    Change in HbA1c levels (%)

    Time frame: 76 weeks

  2. Time in range

    Change in continuous glucose monitoring (CGM) metrics (time in range (3.9-10mmol/L))

    Time frame: 76 weeks

  3. Systolic Blood pressure

    Change in blood pressure

    Time frame: 76 weeks

  4. Diastolic Blood pressure

    Change in blood pressure

    Time frame: 76 weeks

  5. Time in hypoglycaemia

    Change in continuous glucose monitoring (CGM) metrics (time in hypoglycaemia (mild \< 3.9, severe \< 2.5mmol/L))

    Time frame: 76 weeks

  6. Total cholesterol

    Change in lipid parameters (total cholesterol)

    Time frame: 76 weeks

  7. HDL

    Change in lipid parameters (HDL)

    Time frame: 76 weeks

  8. Triglycerides

    Change in lipid parameters (Triglycerides)

    Time frame: 76 weeks

  9. LDL

    Change in lipid parameters (LDL)

    Time frame: 76 weeks

  10. SF-36 (36-Item Short Form Survey) for Quality of life

    Quality of life will be assessed using SF-36 questionnaires. Scores for each domain range from 0 to 100, with a higher score defining a more favorable health state.

    Time frame: 76 weeks

  11. CRP

    Inflammatory markers will be assessed through blood tests.

    Time frame: 76 week

Other outcomes

  1. Diastolic cardiac function on MRI

    Diastolic cardiac function on MRI is primarily assessed by analyzing the left ventricular (LV) filling patterns and myocardial mechanics during diastole, the heart's relaxation and filling phase. Left ventricle filling curves will be measured by tracing the endocardial and epicardial borders, Left ventricle volume curves will show the changes in left ventricle volume during diastole.

    Time frame: 76 weeks

  2. Liver stiffness

    Liver stiffness as caused by liver fat will be assessed using MRI

    Time frame: 76 weeks

  3. Kidney Disease: Improving Global Outcomes (KDIGO) score for Diabetic nephropathy

    The KDIGO (Kidney Disease: Improving Global Outcomes) score for diabetic nephropathy will be used as it combines eGFR and urine albumin creatinine ratio. The stages of diabetic nepropathy starts from 1 and increases to 5. A higher score indicates worse diabetic nephropathy.

    Time frame: 76 weeks

  4. Diabetic Retinopathy Severity Scale (DRSS)

    The Diabetic Retinopathy Severity Scale (DRSS) is the primary score used to assess the severity of diabetic retinopathy, according to Retina Today. It ranges from level 10 (normal) to level 85 (advanced proliferative diabetic retinopathy).

    Time frame: 76 weeks

  5. Fat mass: fat free mass ratio

    Body composition will be assessed using dual-energy X-ray absorptiometry (DXA).

    Time frame: 76 weeks

  6. Incidence of treatment emergent events

    Side effects of medications

    Time frame: 76 weeks

  7. Functional improvements in quality of life

    Quality of life will be assessed using SF-36 questionnaires. Scores for the functional domain range from 0 to 100, with a higher score defining a more favorable health state.

    Time frame: 76 weeks

07

Study locations

1 of 1 sites recruiting
08

References and documents

Publications

  • Al Ozairi E, Al Awadhi A, Taghadom E, Al Kandari J, Alsaeed D, Alghanim S, Mashankar A, Le Roux C. Treatment of the disease of obesity in patients with type 1 diabetes with tirzepatide: a protocol for a randomised controlled trial in a single-centre setting. BMJ Open. 2026 May 7;16(5):e117431. doi: 10.1136/bmjopen-2026-117431. PubMed 42097660 ↗

Individual participant data

Plan to share: Undecided

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 20, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07096908
Lead sponsor
Dasman Diabetes Institute
Collaborators
University of Ulster
Responsible party
Dr. Ebaa Al Ozairi (Chief of Medical Sector (CMO), Dasman Diabetes Institute) — Principal investigator
First posted
Jul 31, 2025
Start date
Jul 31, 2025
Primary completion
Feb 25, 2028 (estimated)
Completion
Aug 1, 2028 (estimated)
Last update
Apr 20, 2026

Study contacts

Shaikhah M Alghanim, MSC
Contact
shaikhah.alghanim@dasmaninstitute.org
965 65533776
Ebaa Al Ozairi, MD
principal investigator · Dasman Diabetes Institute

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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