RecruitingNot Applicable

The GAPSID Study - How GLP-1 Analogues Prevent Steroid-Induced Diabetes

United Kingdom60 participantsStarted 2024-05-15

Plain-language summary

TITLE: How GLP-1 Analogues prevent steroid-induced diabetes (The GAPSID Study) DESIGN: A double-blind study evaluating how GLP-1 analogues, compared with metformin, prevent hyperglycaemia in response to a 7-day course of dexamethasone (DEX) 6 mg once daily. This is a mechanistic experimental medicine study. AIMS: To evaluate the mechanisms by which GLP-1 analogues reduce steroid-induced hyperglycaemia compared to metformin. OUTCOME MEASURES: * Primary: Glucose tolerance in response to standardised mixed meal test (MMT) lasting for 240 minutes, measured in all participants at baseline and on day 7 DEX. * Secondary: Indices of insulin resistance (M-value), beta-cell function (acute insulin response to glucose) and disposition, as measured by a combined IV glucose tolerance test and hyperinsulinaemic-euglycaemic clamp, performed at baseline and on day 7 DEX. * Exploratory: Tissue specific changes in adipose AMPK determined from adipose and muscle biopsies, taken from a subset of approximately 8 individuals in each group. ELIGIBILITY: People living with pre-diabetes or lifestyle controlled diabetes STUDY DURATION: This study will take place over 3 weeks for each partcipant. Study procedures include 10 days of baseline continuous glucose monitoring (CGM) followed by 7 days of dexamethasone with GLP-1, metformin or placebo. Participants will attend a follow-up visit 3-5 days after completing the 7-day course of study drug. The study will run over a period of 3 years. ANTICIPATED IMPACT: Mechanistic evidence for the use of GLP-1 analogues, compared with metformin, in the treatment of steroid-induced diabetes.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Adults ≥ 18 years; * Male or female; * Pre-diabetes (HbA1c ≥42 and \<47 mmol/mol, or lifestyle-controlled diabetes (HbA1c ≥48 and ≤52 mmol/mol); measurements within range on two separate occasions ≥90 days apart) * Body mass index ≥22.5 kg/m2 Exclusion Criteria: * Prior treatment with any diabetes medication within 90 days; * Current or planned pregnancy, or current breastfeeding; * Previous treatment with GC (topical, oral, injected) within 30 days or 90 days for extended-release injected GCs (e.g. Depo-Medrone); * Continuing requirement for GC treatment (e.g. for steroid replacement, chronic inflammatory or immunological condition); * Treatment with medications altering DEX pharmacokinetics (e.g. phenytoin, carbamazepine, ritonavir). * History of pancreatitis, renal disease (eGFR \<30), severe hepatic impairment, gallbladder disorders, or GI disease (e.g. IBD), heart failure, history of medullary thyroid cancer (MTC), or previous skin reactions. * History of bleeding disorders of anticoagulant therapies (exclusion from the biopsy substudy only) * History of giving blood or having taken part in another non-related study in the last three months * History of any other medical, psychological condition, or use of any medications, which, in the opinion of the investigators, would either interfere with the study or compromise the safety of the participant.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Difference in Glucose tolerance

Timeframe: Through study completion, on day 7 dexamethasone and study medication

Trial details

NCT IDNCT06318442

SponsorImperial College London

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2027-06-01

Contact for this trial

Katharine Lazarus, MBChB, BSc

07555717544 k.lazarus@imperial.ac.uk

View on ClinicalTrials.gov More Steroid-Induced Diabetes trials