Using smartphone apps to prevent relapse in opioid use disorder

Neurocognitive Mechanisms Underlying Smartphone-Assisted Prevention of Relapse in Opioid Use Disorder

Not applicable Interventional University of Arkansas · NCT05336188

This study is testing if a smartphone app can help people in treatment for opioid use disorder avoid relapse by providing support and tracking their location.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment255 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Arkansas Academic / other
Locations1 site (Little Rock, Arkansas)
Trial IDNCT05336188 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the effectiveness of a smartphone application called OptiMAT in preventing relapse among patients undergoing medication-assisted treatment for opioid use disorder. Participants will be randomly assigned to either the OptiMAT app group or a monitoring-only group, with the primary goal of assessing differences in opioid use over six months. Additionally, a subset of participants will undergo functional neuroimaging to explore the neurocognitive mechanisms that influence treatment outcomes. The study also incorporates location-tracking technology to provide personalized interventions when participants enter high-risk areas for relapse.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older who are in the early phase of medication-assisted treatment for opioid use disorder.

Not a fit: Patients with a history of neurological or cardiovascular diseases, or those who are pregnant, may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly reduce relapse rates in patients with opioid use disorder, improving overall treatment outcomes.

How similar studies have performed: While smartphone apps have shown efficacy in reducing other substance use, their effectiveness for opioid use disorder is still being explored, making this a novel approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Sex: male or female
* Age: 18 years and older
* (MRI sub-study): Age: 18-50 years old
* In Phase I treatment of MAT for opioid-use disorder. (Phase I indicates that patient is receiving no more than one week of take-home medications at each weekly clinic visit.)
* Must be willing to use a smartphone if randomized to the smartphone intervention arm
* (MRI sub-study): Native English-speaking

Exclusion Criteria:

* (MRI) Medical history: A history of neurological, cardiovascular, or infectious disease would exclude study participation. A loss of consciousness of 20 or more min or other evidence of brain trauma also would be exclusionary.
* (MRI) Pregnancy: A positive test for pregnancy prior to fMRI would exclude participation, due to unknown effect of high-field MRI on developing fetus.
* (MRI) MRI contraindications: Exclusion criteria for MRI include (1) the presence of non-removable internal (e.g., cardiac pacemakers, aneurysm clips, artificial joints) or external (e.g., piercings, orthodontics) ferromagnetic objects; (2) claustrophobia in a confined MRI environment; (3) medications that interfere with hemodynamic coupling (e.g., beta blockers); (4) hypersensitivity to loud noise; or (5) a body circumference exceeding 60cm due to broad shoulders or morbid obesity

Where this trial is running

Little Rock, Arkansas

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Opioid-Related DisordersMobile ApplicationsOpiate Substitution TreatmentMagnetic Resonance ImagingCravingAttentional BiasEcological Momentary Assessment
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.