GLUCOSE-MGH: Genetic Links Understood Through Challenge With Oral

Status Recruiting

Clinical Trial Summary

The goal of this research study is to evaluate the pathophysiologic mechanisms by which genetic variation impacts response to an FDA-approved medication commonly used to treat type 2 diabetes called oral semaglutide (Rybelsus) and to characterize the physiological response to a mixed meal tolerance test (MMTT) before and after a 14-day treatment with oral semaglutide. The investigators will do this by measuring factors in the blood, such as sugars, fats, metabolites, and proteins, after eating a standardized breakfast meal at the first visit and after taking 14 doses of oral semaglutide over two weeks before the second study visit. The food (mixed meal breakfast) we will be studying is specially prepared to contain a set amount of protein, carbohydrates, and fat. The investigators hypothesize that understanding how the acute biochemical response to oral semaglutide differs by genetic variation will generate insight into drug mechanisms and type 2 diabetes pathophysiology.

Clinical Trial Description

On day 1 (Visit 1), the research subject will present to the Translational and Clinical Research Center (TCRC) after an overnight fast. We will obtain informed consent, check vital signs, take anthropometric measurements, and draw fasting blood work through an intravenous catheter. The subject will then be provided a standard mixed meal to be consumed within 30 minutes. Additional blood will be drawn at the time of meal completion (0 minutes), as well as 5, 15, 30, 60, 90, and 120 minutes following the meal. During study days 3-15, the subject will take 7 mg of oral semaglutide once daily. On day 16 (Visit 2), the research subject will return to the TCRC. During this visit, the subject will take the final (14th) dose of semaglutide, receive fasting blood work, and receive another mixed meal with subsequent blood draws at several time points over 120 minutes. ;

Study Design

Related Conditions & MeSH terms

Genetic Predisposition
Genetic Predisposition to Disease
Metabolic Diseases
Type 2 Diabetes

Clinical Trial Details

NCT number	NCT06003153
Study type	Interventional
Source	Massachusetts General Hospital
Contact	Varinderpal Kaur
Phone	6176435419
Email	vkaur@mgh.harvard.edu
Status	Recruiting
Phase	Phase 4
Start date	March 12, 2024
Completion date	May 31, 2027

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

GLUCOSE-MGH: Genetic Links Understood Through Challenge With Oral Semaglutide Exposure at MGH — GLUCOSE-MGH

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms