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RecruitingNCT07891156SEMA-T1D-BODYUpdated Oct 23, 2026

Lean Mass Changes With Semaglutide in Adults With Type 1 Diabetes and Overweight/Obesity.

A Phase 2/3 interventional study of Semaglutide and Placebo in Type 1 Diabetes and Overweight , Obesity, sponsored by McGill University Health Centre/Research Institute of the McGill University Health Centre. Recruiting at 1 site in Canada. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-10-23.

Sponsored by McGill University Health Centre/Research Institute of the McGill University Health Centre · Phase 2/3, Interventional, and Treatment

Updated Oct 23, 2026Newly registeredGo to Updates ↓
Phase
Phase 2/3
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The goal of this 24 week double-blinded, randomized, parallel controlled clinical trial is to learn how semaglutide affects body composition in adults with type 1 diabetes and overweight/obesity.

The main question to answer is:

What effect does Semaglutide have on body composition in adults with type 1 diabetes and overweight/obesity compared to a placebo?

Around 40 participants will:

  • Be randomly assigned to receive semaglutide or a placebo.
  • Self-administer the treatment drug once per week for 24 weeks.
  • Complete a series of tests, measurements and questionnaires throughout the study duration.
  • Attend a remote follow-up visit 4 weeks after the treatment is complete.
02

Conditions studied

  • Type 1 Diabetes
  • Overweight , Obesity

Keywords

  • Randomized
  • Double-blinded
  • Parallel controlled
  • semaglutide
03

In context

Diabetes Mellitus, Type 1

3,614 studies on the registry are indexed under Diabetes Mellitus, Type 1; 586 are open to participants now.

This study's planned enrollment of 40 is close to the median of 40 across 2,718 interventional studies indexed under Diabetes Mellitus, Type 1.

Browse Diabetes Mellitus, Type 1 studies →

Lead sponsor

McGill University Health Centre/Research Institute of the McGill University Health Centre is the lead sponsor of 420 studies on the registry; 106 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 65 Years
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

  • Age 18-65 years old
  • Clinical diagnosis of T1D (type 1 diabetes) for ≥ 1 year, as per clinician judgement.
  • BMI (Body mass index) ≥ 27 kg/m2
  • Use of multi-daily injections or insulin pump therapy.
  • Use of CGM (continuous glucose monitoring).
  • Agreement to the use of a highly effective method of birth control in persons of child-bearing age (if sexually active) and active avoidance of pregnancy during the trial. Child-bearing potential refers to participants of the female sex post-menarche who have not reached menopause or have a disclosed medical condition causing sterility (e.g. hysterectomy). Post-menopausal state refers to the absence of menses for 12 months without any alternative cause.
  • Diabetic retinopathy assessment performed within the last 2 years, as per participant history.

Exclusion criteria

Exclusion Criteria:

  • Pre-existing conditions limiting physical activity, specifically inability to walk for 6 minutes.
  • Active proliferative diabetic retinopathy requiring surgery or laser/injectable therapy within the last 3 months.

*If a history of proliferative retinopathy is present within the last year, written permission from the eligible participant's ophthalmologist or optometrist is required*

  • HbA1c (glycated hemoglobin) ≥ 10% within the last 3 months.
  • Current use of non-insulin anti-hyperglycemic agents within the last month.
  • Severe hypoglycemic episode within the last 3 months, defined as an event where glycemia was \< 4 mmol/L, resulting in seizure, loss of consciousness, or need for third-party assistance in treatment.
  • Diabetic ketoacidosis (DKA) within the last 3 months (DKA refers to the need to present to medical attention and the requirement of intravenous insulin due to ketones)
  • History of bariatric surgery
  • Personal history of acute/chronic pancreatitis or gallstone disease without cholecystectomy.
  • Personal or family history of medullary thyroid cancer or multiple endocrine neoplasia type 2.
  • Severe impairment of renal function with eGFR \<30 mL/min/1.73 m2 (using CKD-EPI formula), measured within the last 12 months.
  • Use of supraphysiological doses of glucocorticoids in the last 3 months, and/or expected use at some point in the next 6 months.
  • Planned or ongoing pregnancy
  • Breastfeeding individuals
  • Prior hypersensitivity reaction to GLP1-RA (glucagon-like-peptide-1 receptor agonist)
  • Clinically significant gastroparesis, defined as persistent symptoms despite pharmacotherapy such as domperidone.
  • Any prior diagnostic history of eating disorder or suicidal attempts, or feelings of suicidal thoughts or behaviours in the last month**
  • Unstable angina, or myocardial infarction/ cardiovascular surgery / coronary stenting in the last month.
  • Any serious medical or psychiatric illness likely to interfere with study participation as per the judgment of the investigator (e.g. cirrhosis, active cancer, decompensated schizophrenia).
05

Study design

Phase
Phase 2 / Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
40 participants (estimated)

Study arms

  • Experimental
    Semaglutide

    Participants will receive semaglutide via subcutaneous injection once a week for 24 weeks. Dosing will begin at 0.25 mg and will be increased every 4 weeks, to a maximum of 2.4 mg, if tolerated.

    Drug: Semaglutide

  • Placebo comparator
    Placebo

    Participants will receive a 0.9% normal saline placebo via subcutaneous injection once a week for 24 weeks. Dosing will begin at 0.25 mg and increase every 4 weeks until a maximum of 2.4 mg.

    Drug: Placebo

Interventions

  • Semaglutide will be administered subcutaneously once a week for 24 weeks. The starting dose will be 0.25 mg, with increases every 4 weeks to 0.5 mg, 1.0 mg, 1.7 mg, and up to 2.4 mg. Dose can be de-escalated or not escalated based on participant symptoms, preference, or clinician judgement.

  • DrugPlacebo

    A 0.9% normal saline placebo will be administered subcutaneously weekly for 24 weeks. The starting dose will be 0.25 mg, with increases every 4 weeks to 0.5 mg, 1.0 mg, 1.7 mg, and up to 2.4 mg.

    Also known as: 0.9% normal saline

06

What researchers measure

Primary outcomes

  1. Change in lean mass

    Change in total lean mass, measured in kilograms (kg).

    Time frame: Baseline to 24 weeks of study drug use

Secondary outcomes

  1. Fat mass (kilograms)

    Change in total fat mass measured in kilograms (kg) using dual-energy X-ray absorptiometry (DEXA).

    Time frame: Baseline to 24 weeks

  2. Proportion of lean mass to fat mass (percentage)

    Change in the proportion of lean mass relative to fat mass as a percentage (%), measured using dual-energy X-ray absorptiometry (DEXA).

    Time frame: Baseline to 24 weeks

  3. Bone density (grams per cubic centimetre)

    Change in bone density measured in grams per cubic centimetre (g/cm³) using dual-energy X-ray absorptiometry (DEXA).

    Time frame: Baseline to 24 weeks

  4. Appendicular lean mass and visceral fat mass (kilograms)

    Change in appendicular lean mass and visceral fat mass measured in kilograms (kg) using dual-energy X-ray absorptiometry (DEXA).

    Time frame: Baseline to 24 weeks

  5. Weight (kilograms)

    Change in body weight, measured in kilograms (kg), on an electronic scale.

    Time frame: Baseline to midpoint (weeks 15-16) and 24 weeks

  6. Hip circumference (centimetres)

    Change in hip circumference, measured in centimetres (cm). Use a measuring tape to measure the largest circumference around the buttock area.

    Time frame: Baseline to midpoint (weeks 15-16) and 24 weeks

  7. Waist circumference (centimetres)

    Change in waist circumference, measured in centimetres (cm) using anthropometric measurements. Use a measuring tape to measure at the level of the ischial crests as a landmark.

    Time frame: Baseline to midpoint (weeks 15-16) and 24 weeks

  8. Blood pressure (millimeters of mercury)

    Change in blood pressure, measured in millimetres of mercury (mmHg), after a 5-minute reset, measured 3 times. We will average the 3 values.

    Time frame: Baseline to 24 weeks

  9. Mean peak torque

    Change in mean peak torque during isokinetic and isometric knee extension/flexion, measured via Biodex. Results will be recorded as weight-based torque (Nm/kg).

    Time frame: Baseline to 24 weeks

  10. Handgrip strength test

    Change in maximum handgrip strength for the dominant and non-dominant hands, measured in kilograms (kg) using a hand dynamometer.

    Time frame: Baseline to 24 weeks

  11. Six-minute walk test (distance in metre)

    Change in the distance walked during the six-minute walk test (6MWT), measured in metres (m).

    Time frame: Baseline to 24 weeks

  12. General physical activity (steps/day)

    Change in average number of steps per day measured using an accelerometer.

    Time frame: Baseline to midpoint (weeks 15-16) and 24 weeks

  13. Time spent in different intensities of physical activity

    Change in time spent in light, moderate, and vigorous physical activity, measured in minutes per day using an accelerometer.

    Time frame: Baseline to midpoint (weeks 15-16) and 24 weeks

  14. Mean total energy consumed per day

    Change in mean total energy consumed per day, measured in kilocalories (kcals), using Keenoa. Keenoa - Food diary smartphone application

    Time frame: Baseline to midpoint to 24 weeks

  15. Mean total carbohydrates/fat/protein

    Change in mean daily intake of carbohydrates, fat, and protein, measured in grams per day (g/day) and as a proportion of energy, using Keenoa. Keenoa - Food diary smartphone application

    Time frame: Baseline to midpoint (weeks 15-16) and 24 weeks

  16. Three-factor eating questionnaire R-18 scores

    Change in the Three-Factor Eating Questionnaire (TFEQ-R18) is an 18-item validated questionnaire regarding eating behaviour and restraint, including subscores of uncontrolled eating, cognitive restraint, and emotional eating.

    Time frame: Baseline to 24 weeks

  17. Canadian Food Intake Screener score

    Change in the Canadian Food Intake Screener score (CFIS): a 16-item survey assessing healthy eating habits in relation to the Canadian Food Guide

    Time frame: Baseline to 24 weeks

  18. Modified Hypoglycemia Fear Survey II (mHFS-II).

    A survey validated in type 1 diabetes to quantify fear of hypoglycemia based on a 5-point Likert scale, with higher scores associated with worsened fear of hypoglycemia. There are 2 subscales: i) HFS-Fear and ii) HFS-Behaviour. This has a total of 32 items.

    Time frame: Baseline to 24 weeks

  19. Diabetes Distress Scale (DDS).

    A 17-item survey to quantify diabetes distress based on a 6-point Likert scale, with higher points associated with worsened diabetes distress. A mean item score of 2.0-2.9 signifies moderate distress, whereas a mean item score ≥ 3.0 signifies high distress.

    Time frame: Baseline to 24 weeks

  20. Diabetes Quality-of-Life Brief Clinical Inventory (DQOLBCI).

    A 15-item survey validated in type 1 diabetes to assess quality of life reflective of treatment satisfaction. It is based on a 5-point Likert scale, with lower scores reflective of better

    Time frame: Baseline to 24 weeks

  21. Change in individual Continuous Glucose Monitoring metrics

    * Time spent between 3.9-10 millimoles per litre (Time in Range) as % * Time spent \< 3.9 millimoles per litre (mmol/L) (Time below Range) as % * Time spent above 10 millimoles per litre (mmol/L) (Time above range) as %

    Time frame: Baseline to midpoint (weeks 15-16) and 24 weeks

  22. Glycated hemoglobin

    Measure of average glucose control over the last 3-4 months (in keeping with the lifespan of red blood cells), with a target of \< 7 percent. Measured as %.

    Time frame: Baseline to midpoint (15-16 weeks) and 24 weeks

  23. Mean daily insulin requirements

    Mean daily insulin requirements, including total, basal and bolus.

    Time frame: Baseline to midpoint (15-16 weeks) and 24 weeks

  24. Lipid levels

    Total cholesterol, Low-Density Lipoprotein-cholesterol, High-Density Lipoprotein-cholesterol, triglycerides (mmol/L)

    Time frame: Baseline to 24 weeks

Other outcomes

  1. Exercise sub-study: glucose levels

    Differences in continuous glucose metrics (within 2 hours and 24 hours), between semaglutide and placebo for a) resistance training and b) aerobic training.

    Time frame: Week 26-27 of study drug use

  2. Exercise sub-study: insulin needs

    Insulin requirements over 24 hours between semaglutide and placebo for a) resistance training and b) aerobic training.

    Time frame: week 26-27

  3. Number of episodes of severe hypoglycemia (safety outcome)

    Number of episodes of severe hypoglycemia * Requiring emergency room visit * Requiring hospitalization * Not requiring medical attention

    Time frame: Baseline to 24 weeks

  4. Number of episodes of ketone levels ≥ 1.5 millimoles per liter (safety outcome)

    Number of episodes with ketone levels ≥ 1.5 millimoles per litre (mmol/L). * Requiring an emergency room visit * Requiring hospitalization * Diagnosed with diabetic ketoacidosis

    Time frame: Baseline to 24 weeks

  5. Gastrointestinal side effects (safety outcome)

    Gastrointestinal side effects * Gallbladder disease * Acute pancreatitis * Rise in liver enzymes

    Time frame: Baseline to 24 weeks

  6. Diabetic retinopathy (safety outcome)

    Diabetic retinopathy * New * Progression * Sight-threatening

    Time frame: Baseline to 24 weeks

  7. Serum creatinine (safety outcome)

    Rise in creatinine (micromol/L)

    Time frame: Baseline to midway to 24 weeks

  8. Urine albumin: creatinine ratio (safety outcome

    Change in albuminuria (mg/mmol)

    Time frame: Baseline to midway to 24 weeks

  9. Liver enzymes

    Change in liver enzymes (alanine aminotransferase and alkaline phosphatase, Units/L

    Time frame: Baseline to midway to 24 week

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Undecided — Sharing would be case-by-case basis to protect the anonymity of participants and to ensure it is for non-commercial use.

No publications or documents are linked to this record.

09

Updates

1 registry update since Sep 25, 2026
Registered
First appeared on the registry. No changes since
Oct 23, 2026
Show all 1 update
  1. Oct 23, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07891156
Responsible party
Melissa-Rosina Pasqua (Principal investigator, McGill University Health Centre/Research Institute of the McGill University Health Centre) — Principal investigator
First posted
Oct 23, 2026
Start date
Oct 13, 2026 (estimated)
Primary completion
Sep 1, 2028 (estimated)
Completion
Oct 1, 2028 (estimated)
Last update
Oct 23, 2026

Study contacts

Jakob Lenabat
Contact
Jakob.Lenabat-persson@mail.mcgill.ca
438 822 3302
Melissa-Rosina Pasqua, MD, PhD
principal investigator · Research Institute of the McGill University Health Centre Royal Victoria Hospital

Oversight

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

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