GLPwatch

Mazdutide in Type 2 Diabetes With Early-Stage Cognitive Impairment (LIGHT-COG Study)

NCT07083154 · Recruiting

Last updated 2026-09-22

This clinical trial is testing a medication called a GLP-1/GCG dual agonist in adults with both type 2 diabetes and early-stage memory problems to see how it affects their thinking and memory skills.

Status Recruiting Currently enrolling participants.
Phase Phase 3 Confirms effectiveness in a large group before approval.
Type Interventional (clinical trial)
Design Randomized, quadruple-blind treatment study
Participants 420 people Planned (estimated).
Who can join Ages 50–75 · all sexes
Timeline Started 2025-09 · est. completion 2029-08
Where 8 sites · China

What this study is testing ClinicalTrials.gov NCT07083154 ↗

Description as written by the study sponsor.

The LIGHT-COG study is a 76-week, multicenter, randomized, double-blind, placebo-controlled, parallel-group clinical trial evaluating the efficacy and safety of mazdutide in 420 participants with type 2 diabetes (T2D) and early-stage cognitive impairment, defined as mild cognitive impairment (MCI) or mild dementia. Participants are randomized 1:1 to receive once-weekly subcutaneous mazdutide, with dose escalation according to the protocol, or matching placebo, in addition to background glucose-lowering therapy. The primary objective is to determine whether 76 weeks of mazdutide treatment can slow cognitive and functional decline compared with placebo in this population.

Treatments tested

Main thing measuredIntegrated Alzheimer's Disease Rating Scale (iADRS) Score Change
SponsorThe Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School
Conditions studiedDementia, Mild, Mild Cognitive Impairment, Type 2 Diabetes
GLP-1 drugs mazdutide

Full protocol, eligibility, and contacts on ClinicalTrials.gov NCT07083154 ↗