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Obesity in DiabetesPhase 3OBES1TYNCT06909006

Semaglutide Treatment in Type 1 Diabetes

A Phase 3 study testing Semaglutide 2.4mg in people with Obesity in Diabetes and Obesity/Therapy, run by Nordsjaellands Hospital at 1 site in Denmark.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

The goal of this clinical trial is to investigate the efficacy of semaglutide on body weight, insulin dose requirements and improvements in glucose control and safety aspects in regards to risk of hypoglycemia and diabetic ketoacidosis for patients with established Type 1 Diabetes. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Semaglutide 2.4mg
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
122 participants
Where
1 siteDenmark
Study dates
Oct 2025to Jun 2028
Phase
Phase 3
Are there results?
Not yet: the study is under way

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Type 1 Diabetes for more than 3 years
  • BMI ≥ 30 or ≥ 27 and atleast one comorbidity (hypertension, hypercholesterolemia, microalbuminuria, ischemic heart disease, history of stroke, atherosclerosis or arthrosis

Who cannot join

  • Treated with GLP1-RAs within last 6 months
  • Known intolerance for semaglutide
  • Other forms of diabetes
  • Pregnant or nursing women
  • Fertile women not using chemical (hormonal) or mechanical (spiral) contraceptives
  • Liver disease with elevated plasma alanine aminotransferase (ALT) > five times and plasma aspartate aminotransferase (AST) > five times the upper limit of normal (measured at visit 0 with the possibility of one repeat analysis within a week, and the last measured value as being conclusive)
Show all 12Show fewer
  • Acute or chronic pancreatitis
  • Cancer, unless in complete remission for > 5 years or unless basocellular carcinomas
  • History of thyroid adenoma or carcinoma
  • Alcohol/drug abuse
  • Other concomitant disease or treatment that according to the investigator's assessment makes the patient unsuitable for study participation
  • Receipt of an investigational drug within 30 days prior to visit 0 / Simultaneous participation in any other clinical intervention trial

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Thomas F Dejgaard, MD, ph.d., endocrinologist contact

0045 26 79 61 03

Thomas.fremming.dejgaard@regionh.dk

Hasan I Mirza, MD, ph.d.-student contact

0045 42 37 58 40

hasan.imran.mirza@regionh.dk

Denmark1 site
  • Nordsjaellands Hospital

    Hillerød, Denmark, 3400

    Thomas F Dejgaard, MD, ph.d., endocrinologist, 0045 26 79 61 03, Thomas.fremming.dejgaard@regionh.dk

    Hasan I Mirza, MD, ph.d.-student, 0045 42 37 58 40, hasan.imran.mirza@regionh.dk

Other trials in Denmark

About this study

Official title: Obesity and Semaglutide in Type 1 Diabetes Therapy: A Multicentre, Randomised, Double-Blinded, Placebo-Controlled, Investigator-Initiated Trial

The goal of this clinical trial is to investigate the efficacy of semaglutide on body weight, insulin dose requirements and improvements in glucose control and safety aspects in regards to risk of hypoglycemia and diabetic ketoacidosis for patients with established Type 1 Diabetes.

Read the detailed description

This is a multicentre, randomised, double-blinded, placebo-controlled and investigator-initiated trial aimed to investigate the efficacy of semaglutide in patients with Type 1 Diabetes.

Patients from all included diabetes care centres will at routine visits be screened for eligibility for the trial and offered participation. If accepted, the patients will be randomised to one of two intervention arms and undergo a series of different examinations prior to start of the intervention.

The two arms consist of treatment with subcutaneous semaglutide injections or subcutaneous injections with semaglutide placebo. The baseline examinations entail documentation of insulin doses, dietary patterns, diabetes distress and treatment satisfaction questionnaires, anthropoimetric data (height, weight and calculation of BMI, waist circumference, waist-hip-ratio), blood work (HbA1c, fasting glucose, fasting c-peptide, lipids, liver and kidney markers incl. Fib-4-scoring, hematology, hsCRP), ECG, capturing of data from continuous/flash glucose monitors.

The first 40 included in the study from the centres of SDCA and NOH will further be examined through hyperinsulinemic euglycemic clamps to determine their insulin sensitivity and asses their transcriptome through muscle and fat cell biopsies in relation to the clamp and also be assessed through DXA scans to look at body composition and bone density.

Patients will then be handed out their trial drug-pens and start the uptitration proces.

The efficacy of semaglutide will be evaluated through the above mentioned array of different investigations by comparing parameters prior to trial drug start, during (throughout the study period), at the end of the drug and at a 6 week post-study followup in an intention-to-treat analysis primarily and secondarily a per-protocol analysis.

The safety will be assessed through evaluation of standardized adverse event reporting (including hypoglycemic events and diabetic ketoacidosis).

Being tested
Semaglutide 2.4mg, Semaglutide placebo
Keywords
Semaglutide, Obesity, Type 1 Diabetes, Obese Type 1 Diabetics, Insulin sensitivity, Insulin resistance, Weight loss, GLP1-RA, GLP1, Wegovy
Medical subject headings
Obesity, Diabetes Mellitus, Type 1, Insulin Resistance, Weight Loss

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Semaglutide 2.4mgDrug

    Also called Active semaglutide

    The active comparator of the intervention is s.c. Semaglutide injection once a week in increasing doses every month from 0.25 mg to 0.5 mg to 1.0 mg to 1.7 mg to 2.4 mg and the placebo comparator is s.c. injection with a visually identical and same label pen as described for the active comparator

  • Semaglutide placeboDrug

    Also called Placebo semaglutide

    Visually identical and same label as the active comparator intervention

Study groups in NCT06909006
Study groupRoleWhat they receive
SemaglutideActive comparatorSubcutaneous injection through injector pen with the active comparator Semaglutide once a week in monthly increasing doses as given: 0.25mg - 0.5mg - 1.0mg - 1.7mg - 2.4mg
Receives: Drug: Semaglutide 2.4mg
Semaglutide placeboPlacebo comparatorVisually identical injector pen without the active comparator.
Receives: Drug: Semaglutide placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Body weight

    Body weight will be measured both prior to and following treatment for 68 weeks with either semaglutide or placebo. Changes in body weight will be compared for the two intervention arms, before, throughout and at the end of treatment and then at followup 6 weeks later.

    Measured: 74 weeks

Secondary outcomes (42)
  1. Systolic blood pressure

    Systolic blood pressure will be assessed at randomization and evaluated for changes throughout, at the end of treatment and at followup 6 weeks later.

    Measured: 74 weeks

  2. Diastolic blood pressure

    Diastolic blood pressure will be assessed at randomization and evaluated for changes throughout, at the end of treatment and at followup 6 weeks later.

    Measured: 74 weeks

  3. Resting heart rate

    Systolic blood pressure will be assessed at randomization and evaluated for changes throughout, at the end of treatment and at followup 6 weeks later.

    Measured: 74 weeks

  4. Waist circumference

    Waist circumference will be assessed and evaluated for changes during and after treatment for 68 weeks with semaglutide compared to before treatment.

    Measured: 74 weeks

  5. Hip-waist-ratio

    Hip-waist-ratio will be assessed and evaluated for changes during and after treatment for 68 weeks with semaglutide compared to before treatment.

    Measured: 74 weeks

  6. Hemoglobin

    Blood samples will be analyzed to assess hemoglobin before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  7. Leucocytes

    Blood samples will be analyzed to assess leucocytes levels before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  8. Thrombocytes

    Blood samples will be analyzed to assess thrombocytes levels before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  9. HbA1c

    Blood samples will be analyzed to assess HbA1c before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  10. Fasting plasma-glucose

    Blood samples will be analyzed to assess fasting plasma-glucose before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  11. Fasting c-peptide

    Blood samples will be analyzed to assess fasting c-peptide before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  12. Total cholesterol

    Blood samples will be analyzed to assess total cholesterol before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  13. HDL cholesterol

    Blood samples will be analyzed to assess HDL cholesterol before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74

  14. LDL cholesterol

    Blood samples will be analyzed to assess LDL cholesterol before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  15. VLDL cholesterol

    Blood samples will be analyzed to assess VLDL cholesterol before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  16. Triglycerides

    Blood samples will be analyzed to assess triglycerides levels before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  17. non-HDL cholesterol

    Blood samples will be analyzed to assess non-HDL cholesterol before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  18. Sodium

    Blood samples will be analyzed to assess sodium before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  19. Potassium

    Blood samples will be analyzed to assess potassium before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  20. Creatinine/eGFR

    Blood samples will be analyzed to assess creatinine levels to calculate estimated Glomerular Filtration Rates (eGFR, based on sex, age and creatinine leve) before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  21. Alanine transaminase (ALT)

    Blood samples will be analyzed to assess alanine transaminase (ALT) before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  22. Aspartate transaminase (AST)

    Blood samples will be analyzed to assess aspartate transaminase (AST) before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  23. Fibrosis-4-score (Fib-4)

    Blood samples will be analyzed for fibrosis-4-scores (based on age, thrombocytes, ALT and AST) before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  24. Amylase

    Blood samples will be analyzed to assess pancreatic amylase before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  25. Lipase

    Blood samples will be analyzed to assess pancreatic lipase before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  26. High sensitivity C-reactive protein (hsCRP)

    Blood samples will be analyzed to assess high sensitivity C-reactive protein (hsCRP) before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  27. Albumin

    Blood samples will be analyzed to assess serum albumin before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up.

    Measured: 74 weeks

  28. Ketones

    Blood samples will be analyzed to assess total serum ketones before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up

    Measured: 74 weeks

  29. CGM data - Time in range (TIR)

    Data from CGMs will be analyzed to asses time in range (TIR) before treatment and evaluated for changes in TIR throughout the 68-week regimen and at its conclusion.

    Measured: 68 weeks

  30. CGM data - Time in tight range (TITR)

    Data from CGMs will be analyzed to asses time in tight range (TITR) before treatment and evaluated for changes in TITR throughout the 68-week regimen and at its conclusion.

    Measured: 68 weeks

  31. CGM data - Time above range (TAR)

    Data from CGMs will be analyzed to asses time above range (TAR) before treatment and evaluated for changes in TAR throughout the 68-week regimen and at its conclusion.

    Measured: 68 weeks

  32. CGM data - Time below range (TBR)

    Data from CGMs will be analyzed to asses time in range (TBR) before treatment and evaluated for changes in TBR throughout the 68-week regimen and at its conclusion.

    Measured: 68 weeks

  33. CGM data - coefficient of variation (CV)

    Data from CGMs will be analyzed to asses coefficient of variation (CV) before treatment and evaluated for changes in CV throughout the 68-week regimen and at its conclusion.

    Measured: 68 weeks

  34. Total daily dose of insulin

    Total daily dose will be assessed at randomization and evaluated for changes throughout treatment regimen, at the end of study and at six weeks followup through the use of insulin dose diaries.

    Measured: 74 weeks

  35. Insulin sensitivity

    For a subgroup consisting of the first 40 patients from two specified sites: Insulin sensitivity will be assessed through the golden standard hyperinsulinemic euglycemic clamping method. This will be done before treatment and at the end of treatment.

    Measured: 68 weeks

  36. Fat percentage

    For a subgroup consisting of the first 40 patients from two specified sites: The fat percentage is measured by DXA scan at randomisation and at end-of-treatment.

    Measured: 68 weeks

  37. Lean mass

    For a subgroup consisting of the first 40 patients from two specified sites: Lean body mass is measured by DXA scan at randomisation and at end-of-treatment.

    Measured: 68 weeks

  38. Bone density (through bone mineral content)

    For a subgroup consisting of the first 40 patients from two specified sites: Bone density (through bone mineral content) is measured by DXA scan at randomisation and at end-of-treatment.

    Measured: 68 weeks

  39. Omics / Metabolome

    For a subgroup consisting of the first 40 patients from two specified sites: Blood samples will be analyzed to assess metabolomic profile (entailing both lipidome and proteome) before treatment and evaluated for changes throughout the 68-week regimen, at its conclusion, and again six weeks post-treatment during follow-up

    Measured: 74 weeks

  40. Muscle tissue biopsy

    For a subgroup consisting of the first 40 patients from two specified sites: Muscle tissue biopsies will be taken to assess changes in transcriptome at randomisation and at end-of-treatment.

    Measured: 68 weeks

  41. Fat tissue biopsy

    For a subgroup consisting of the first 40 patients from two specified sites: Fat tissue biopsies will be taken to assess changes in transcriptome at randomisation and at end-of-treatment.

    Measured: 68 weeks

  42. Electrocardiogram

    Electrocardiograms (ECG) will be recorded at initiation and end of treatment period to assess and evaluate if any rhytm changes occur.

    Measured: 68 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Apr 2025
  2. Study startOct 2025 (estimated)
  3. Primary completionJun 2028 (estimated)
  4. Study completionJun 2028 (estimated)

Resources

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Randomised, double-blinded, placebo-controlled.
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
122 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06909006
Sponsor's protocol ID
U1111-1304-0713
Acronym
OBES1TY
Status last verified
Mar 2025
First submitted
17 Mar 2025
Last updated
8 Aug 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Data will be shared upon request for it.

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Semaglutide 2.4mg in people with Obesity in Diabetes and Obesity/Therapy, run by Nordsjaellands Hospital at 1 site in Denmark.

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 2 inclusion and 12 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: opening soon, as of the sponsor's last update on 8 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Denmark. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Thomas F Dejgaard, MD, ph.d., endocrinologist (0045 26 79 61 03, Thomas.fremming.dejgaard@regionh.dk), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Body weight (time frame: 74 weeks). 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 8 Aug 2025.

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