NCT06732596

Brief Summary

This study aims to improve retention in buprenorphine treatment, a medication used for opioid use disorder, through the use of a smartphone-delivered recovery support intervention. The intervention involves an Embodied Conversational Agent (ECA), a virtual, animated computer agent designed to simulate natural face-to-face conversations. ECAs have been shown to help individuals manage their healthcare in other settings, and this study seeks to evaluate their potential in supporting patients on medication for opioid use disorder (MOUD).

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
7mo left

Started Oct 2025

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress48%
Oct 2025Dec 2026

First Submitted

Initial submission to the registry

December 10, 2024

Completed
3 days until next milestone

First Posted

Study publicly available on registry

December 13, 2024

Completed
11 months until next milestone

Study Start

First participant enrolled

October 30, 2025

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2026

Last Updated

November 3, 2025

Status Verified

October 1, 2025

Enrollment Period

1.1 years

First QC Date

December 10, 2024

Last Update Submit

October 30, 2025

Conditions

Keywords

Embodied conversational agent (ECA)Buprenorphine treatmentMedication for opioid use disorder (MOUD)Office Based Addiction TreatmentSupportive Application for Recovery Assistance (SARA)Smartphone delivered intervention

Outcome Measures

Primary Outcomes (1)

  • Number of participants that stay engaged in buprenorphine treatment

    Engaged in buprenorphine treatment or treatment retention is defined as a participant's treatment period of at least 365 days, including those with multiple disengagement and reengagement periods, as long as any gap in active prescriptions or receipt of injections is less than 60 days.

    12 months

Secondary Outcomes (8)

  • Treatment retention at 6 months

    6 months

  • Treatment duration

    6 months. 12 months

  • Opioid use

    6 months

  • Changes in stigma based on the Substance Use Stigma Mechanism Scale (SU-SMS)

    Baseline, 6 months

  • Changes in stigma based on the Buprenorphine Treatment Stigma Mechanism Scale (BT-SMS)

    Baseline, 6 months

  • +3 more secondary outcomes

Study Arms (2)

ECA, technical support, additional ECA messages, and incentives

EXPERIMENTAL

Participants randomized into the intervention arm will be engaged in ECA use, technical support, additional ECA messages reminding the use of the ECA app on behalf of OBAT clinical staff, and monetary incentives.

Other: Embodied conversational agent (ECA)Other: Technical supportOther: Additional ECA messagesOther: Additional incentives

Treatment as usual group

NO INTERVENTION

Participants randomized into this arm will receive treatment as usual

Interventions

The app with the ECA will be provided.

ECA, technical support, additional ECA messages, and incentives

Technical support will include assistance downloading and setting up the app on the participant's phone, walking them through a brief demonstration, and answering any questions the participant has about how to use the app.

ECA, technical support, additional ECA messages, and incentives

Weekly text messages will be provided reminding participants to use the app on behalf of OBAT clinical staff.

ECA, technical support, additional ECA messages, and incentives

Additional incentives will be provided after logging into the app for 20 days followed by monthly lotteries for those who log in 15 days per month

ECA, technical support, additional ECA messages, and incentives

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of Opioid Use Disorder (OUD)
  • Within 30 days of intake at recruitment site (BMC OBAT)
  • Possession of a smartphone that has minimum requirements
  • English-speaking and reading
  • Willing to release electronic health record (EHR) data
  • Able to provide at least two alternate contacts who usually know how to get in touch with them
  • Currently prescribed buprenorphine from an outpatient clinic

You may not qualify if:

  • Incarceration anticipated within 12 months of enrollment
  • Inability to comprehend the study protocol, defined as failing three times to answer correctly a set of questions during the consent process
  • Inability to use the ECA app (i.e., due to markedly limited visual or auditory acuity or motor function required to interact with the ECA)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Office-Based Addiction Treatment (OBAT) Clinic, BMC

Boston, Massachusetts, 02118, United States

RECRUITING

MeSH Terms

Conditions

Opioid-Related Disorders

Condition Hierarchy (Ancestors)

Narcotic-Related DisordersSubstance-Related DisordersChemically-Induced DisordersMental Disorders

Study Officials

  • Karsten Lunze, MD MPH DrPH

    Boston Medical Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Karsten Lunze, MD MPH DrPH

CONTACT

Samantha Blakemore, MPH

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: Participants will be randomly assigned to one of two groups: 50 will receive the ECA intervention (including technical support, text message reminders, and monetary incentives) in addition to usual care, while 50 will receive only usual care.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 10, 2024

First Posted

December 13, 2024

Study Start

October 30, 2025

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2026

Last Updated

November 3, 2025

Record last verified: 2025-10

Data Sharing

IPD Sharing
Will share

All data produced in the course of the project will be preserved and shared upon reasonable request.

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
Shared data generated from this project will be made available as soon as possible, and no later than at the time of publication. The duration of preservation and sharing of the data will be a minimum of 10 years after the end of the funding period.
Access Criteria
Data will be available by controlled access only. To access data users must submit an informal data request and signs BMC's Data Use Agreement (DUA), which limits subsequent use to the terms of the approved request and requires that users maintain data security, and refrain from any attempts to re-identify research participants or engage in any unauthorized uses of the data. To get access to the data, the user must submit a valid scientific question, include a statistical analysis plan. The MPIs will review the data request for scientific merit.

Locations