Mazdutide in Type 2 Diabetes With Early-Stage Cognitive Impairment (LIGHT-COG Study)
NCT07083154 · Recruiting
Last updated 2026-09-22This 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.
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
- Mazdutide also known as IBI362 Drug
Mazdutide is administered once weekly by subcutaneous injection using a prefilled autoinjector pen, preferably on the same day each week. Treatment is initiated at 2.0 mg once weekly and up-titrated to 4.0 mg once weekly during Weeks 4-12 according to individual tolerability. After at least 4 weeks at 4.0 mg, further escalation to 6.0 mg once weekly may be considered if prespecified criteria are met. Participants who are unable to tolerate a given dose may continue treatment at the highest tolerated dose. The total treatment duration is 76 weeks.
- Placebo Drug
Matching placebo is administered once weekly by subcutaneous injection using a prefilled autoinjector pen. Participants will undergo the same blinded titration and dose-adjustment schedule as the mazdutide group, including corresponding 2.0 mg, 4.0 mg, and, where applicable, 6.0 mg dosing levels. Participants unable to tolerate a given dosing level may remain at the highest tolerated level. The total treatment duration is 76 weeks.
| Main thing measured | Integrated Alzheimer's Disease Rating Scale (iADRS) Score Change |
|---|---|
| Sponsor | The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School |
| Conditions studied | Dementia, Mild, Mild Cognitive Impairment, Type 2 Diabetes |
| GLP-1 drugs | mazdutide |
Full protocol, eligibility, and contacts on ClinicalTrials.gov NCT07083154 ↗