GLPwatch

A Research Study to Compare Two Doses of Semaglutide Taken Once Weekly in People With Type 2 Diabetes

NCT03989232 · Completed

Last updated 2026-05-28

This study is testing two different doses of semaglutide, taken once a week, in adults with type 2 diabetes to see how it affects their blood sugar levels.

Status Completed The study has finished.
Phase Phase 3 Confirms effectiveness in a large group before approval.
Type Interventional (clinical trial)
Design Randomized, quadruple-blind treatment study
Participants 961 people
Who can join Ages 18+ · all sexes
Timeline Started 2019-06 · est. completion 2020-11
Where 129 sites · Bulgaria, Canada, Czechia, Greece, Hungary, Japan, Poland, Puerto Rico, Slovakia, Ukraine, United States

What this study is testing ClinicalTrials.gov NCT03989232 ↗

Description as written by the study sponsor.

This study compares the effect of two doses of semaglutide (1.0 mg and 2.0 mg) in people with type 2 diabetes (T2D). People taking part in the study will take the medicine together with their current diabetes medicine (sulphonylurea and/or metformin). Participants will get a dose of either 1.0 mg or 2.0 mg semaglutide once a week - which dose is decided by chance. Participants will inject semaglutide under the skin once a week. The study will last for about 49 weeks. Participants will have 9 clinic visits and 2 phone calls with the study doctor. At the visits participants will have blood taken and eye tests done. Women cannot take part if pregnant, breast-feeding or planning to become pregnant during the study period. Female participants who can get pregnant will be checked 11 times for pregnancy via urine tests.

Treatments tested

Main thing measuredChange in HbA1c
SponsorNovo Nordisk A/S
Conditions studiedDiabetes Mellitus, Type 2
GLP-1 drugs semaglutide

Full protocol, eligibility, and contacts on ClinicalTrials.gov NCT03989232 ↗