PreventT2 Together Study Evaluating a Couple-Based Lifestyle Program to Prevent Type 2 Diabetes in Adults

What this Trial Is About

Nearly half of adults in the United States have or are at risk of developing type 2 diabetes. This research aims to evaluate the effectiveness of a new couple-based lifestyle intervention called PreventT2 Together, designed to prevent type 2 diabetes among partnered adults. The study addresses challenges in retaining participants in lifestyle programs, especially among racial and ethnic minority groups, by involving romantic partners to support lasting positive lifestyle changes. Participants will be randomly assigned to one of two groups an individual lifestyle intervention based on the 2021 National Diabetes Prevention Program PreventT2, or a couple-based adaptation of this program PreventT2 Together approved by the CDC. Both interventions are delivered by trained lifestyle coaches over the course of 12 months, with content tailored to either individuals at high risk or couples working together to support healthy lifestyle changes. During the study, 162 couples will be monitored for changes in physical activity levels, specifically moderate to vigorous physical activity, as well as other health and lifestyle factors such as HbA1c, weight, stress, nutrition, sleep, and perceived partner support. Data will be collected at baseline, monthly during the intervention, and at the end of the 1-year period, totaling 13 assessment points. The study will also evaluate relationship satisfaction and intervention retention, with the goal of improving real-world outcomes and reducing health disparities related to type 2 diabetes prevention.

PreventT2 Together: Examining the Efficacy of Couple-based Lifestyle Intervention to Prevent Type 2 Diabetes