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Refinement and Adaption of Reinforcement Learning to Personalize Behavioral Messaging for Healthy Habits

Refinement and Adaption of Reinforcement Learning to Personalize Behavioral Messaging for Healthy Habits

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05742685
Acronym
REINFORCE2
Enrollment
28
Registered
2023-02-24
Start date
2023-08-23
Completion date
2025-12-17
Last updated
2026-03-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes Mellitus, Type 2, Medication Adherence

Brief summary

Reinforcement learning is an advanced analytic method that discovers each individual's pattern of responsiveness by observing their actions and then implements a personalized strategy to optimize individuals' behaviors using trial and error. The goal of the proposed research is to refine, adapt and perform efficacy testing of a novel reinforcement learning-based text messaging intervention to support medication adherence for patients with type 2 diabetes within a community health center setting. This study will be a parallel randomized pragmatic trial comparing medication adherence and clinical outcomes for adults in a community setting aged 18-84 with type 2 diabetes who are prescribed 1-3 daily oral medications for this disease. Participants will be randomized to one of two arms for the duration of the study period: (1) a reinforcement learning intervention arm with up to daily, tailored text messages based on time-varying treatment-response patterns; or (2) a control arm with up to daily, un-tailored text messages. Outcomes of interest will be medication adherence, as measured by electronic pill bottles, and HbA1c levels over 6 months.

Detailed description

The goal of the proposed research is to refine, adapt and perform efficacy testing of a novel reinforcement learning-based text messaging intervention to support medication adherence for patients with type 2 diabetes within a community setting. Type 2 diabetes is an optimal condition in which to refine this program, as it is one of the most prevalent chronic conditions in the US adult population and requires most patients to be on daily or twice daily doses of medications. This study will be a parallel randomized pragmatic trial comparing medication adherence and clinical outcomes for adults in a community setting aged 18-84 with type 2 diabetes who are prescribed 1-3 daily oral medications for this disease. Participants will be randomized to one of two arms for the duration of the study period: (1) a reinforcement learning intervention arm with up to daily, tailored text messages based on time-varying treatment-response patterns; or (2) a control arm with up to daily, un-tailored text messages. Outcomes of interest will be medication adherence, as measured by electronic pill bottles, and HbA1c levels over 6 months.

Interventions

Participants in the intervention arm will receive up to daily, tailored text messages based on their electronic pill bottle-measured adherence. Given the participants' baseline characteristics and time-varying responses to the messages, a reinforcement learning algorithm will deliver different text messages and adapt over time to determine which type of messaging works best for each individual participant.

Sponsors

Brigham and Women's Hospital
Lead SponsorOTHER
Boston Medical Center
CollaboratorOTHER
National Institute on Aging (NIA)
CollaboratorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
DOUBLE (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 84 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of Type 2 Diabetes Mellitus (T2DM) * Prescribed between 1-3 daily oral medications for diabetes * Most recent HbA1c level of 7% or greater * Suboptimal adherence, defined by proportion of days covered (PDC) \< 0.90 based on chart review * Must have a smartphone for which they are the sole user * Must have a basic working knowledge of English or Spanish

Exclusion criteria

* Currently using a pillbox and/or not willing to use electronic pill bottles for 6 months * Receive help at home on a daily basis with taking medications

Design outcomes

Primary

MeasureTime frameDescription
Diabetes medication adherence6 monthsProportion of correct doses recorded by electronic pill bottles in the 6-month follow-up period, averaged across study medications

Secondary

MeasureTime frameDescription
Glycemic control6 monthsChange between baseline HbA1c used for identification and the 6-month intervention period, using laboratory values in the EHR

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 21, 2026