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Sumatriptan and Glucose

Overweight Clinical Trial

Official title:
Effects of Serotonin Receptor Agonism on Blood Glucose Lowering: Proof of Concept in Humans

Clinical Trial Summary

The purpose of this study is to establish the proof of concept for a brain serotonin pathway controlling blood glucose control in humans. We will examine whether activation of serotonin receptors by a single dose of sumatriptan (a drug used for the treatment of migraine) can lead to short term changes in blood glucose homeostasis. Thus far, this has been shown only in animal models but no study in humans has directly investigated this research question. Briefly, in this study we will give a single dose of sumatriptan (100 mg) to each participant in a small sample (10 to 12) of overweight or obese, otherwise healthy humans. It will take place in the Translational Research Facility which is embedded in the Cambridge University Hospitals NHS Foundation Trust. The research staff have extensive experience and expertise in the procedures which will be used. The study will involve a screening visit and 2 subsequent visits at which sumatriptan/placebo will be taken and the glucose metabolism will be assessed using a Botnia clamp (3h procedure involving insulin and glucose infusions given intravenously with frequent blood sampling to assess insulin secretion and sensitivity). There will be about 60 days between screening visit and the last visit. The entire study (including the recruitment and data analysis) is expected to complete in about 12 months. If sumatriptan alters glucose control, this might support future testing in disease models i.e. people with type 1 diabetes (T1D) and/or type 2 diabetes (T2D). Ultimately, if successful, either sumatriptan could be repurposed and/or other drugs from this group (triptans) could be developed for diabetes.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04690270
Study type Interventional
Source Cambridge University Hospitals NHS Foundation Trust
Contact Rajna Golubic, MD, PhD
Phone 01223748471
Email rg380@medschl.cam.ac.uk
Status Not yet recruiting
Phase Early Phase 1
Start date January 4, 2021
Completion date June 25, 2021
View Details
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