NCT03980743

Interactive Obesity Treatment Approach for Obesity Prevention in Adults With Early Serious Mental Illness: iOTA-SMI

Adaptation of an Evidence-based Interactive Obesity Treatment Approach (iOTA) for Obesity Prevention in Early Serious Mental Illness: iOTA-eSMI

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 51 (actual)
• Sponsor: Washington University School of Medicine · Academic / Other
• Sex: All
• Age: 18 Years – 60 Years
• Healthy volunteers: Not accepted

Summary

Using a design-for-dissemination approach, this application proposes to use combined methods to adapt and pilot test an interactive obesity treatment approach (iOTA) for obesity prevention in early serious mental illness (eSMI) that uses text messaging to provide between-visit support. Derived from the lifestyle intervention used in the Diabetes Prevention Program, the parent iOTA targets diet, activity and adherence using web-based and health coach support.

Detailed description

Most obesity and related complications in serious mental illness (SMI) occur in the context of chronic psychiatric illness, but there are few treatments that work. Behavioral interventions face challenges with long-term effectiveness, implementation and sustainability. Medications have modest effectiveness at best, and/or pose serious side effect risks. This study focuses on prevention of chronic obesity by adapting and pilot testing a prevention-focused, interactive obesity treatment approach (iOTA) for use in persons with early-phase SMI (eSMI) experiencing initial weight gain, overweight or early-stage obesity. The intervention will be adapted from the most studied, effective iOTA, derived from the Diabetes Prevention Program. The parent iOTA uses health coaches who extend their sustainable reach with scalable, inexpensive, semi-automated text messaging. Using a formal evaluation process and a specific implementation science framework, planned adaptations for this application will address mechanisms to improve health-related awareness, insight and self-efficacy skills. Aim 1: Evaluate barriers and facilitators for intervention engagement, effectiveness and implementation, and identify needed adaptations of the prior iOTA for use in obesity attenuation in eSMI. Aim 2: Adapt the prior iOTA for use in obesity attenuation in eSMI, aiming to maximize acceptability, engagement, sustainable reach and target engagement for eSMI. Aim 3: Conduct a randomized pilot and feasibility study of iOTA-eSMI in a diverse sample of adults aged 18-45 with eSMI and initial weight gain, overweight or early class I obesity, comparing iOTA-eSMI to a health education condition.

Conditions

• Obesity
• Overweight
• Severe Mental Disorder

Interventions

Type	Name	Description
BEHAVIORAL	iOTA text messaging intervention	Over 6 months, participants in the iOTA arm will have monthly in-person visits with a health coach who will work with the participant to set goals for the upcoming month related to healthy eating and activity. The participant will receive daily text message health tips related to their goals, and will be prompted once a week to respond with a text indicating their weight and how they are doing with their goals. Following the 6-month active treatment phase, participants will receive text messages only for another 3 months.
BEHAVIORAL	Health Education text messaging intervention	Over 6 months, participants in the Health Ed arm will also have monthly in-person visits with a health coach who will provide education on energy balance and problem-solving. Specific goals will not be set, but the health coach will assist participants in problem-solving any challenges. Participants will receive a weekly automated motivational text message health tip from the study related to what they learned in their health coaching sessions. Following the 6-month active treatment phase, participants will receive text messages only for another 3 months.

Timeline

• Start date: 2020-07-15
• Primary completion: 2022-05-31
• Completion: 2022-05-31
• First posted: 2019-06-10
• Last updated: 2024-10-26
• Results posted: 2024-10-26

Locations

2 sites across 1 country: United States