Autobiographical Memory in Opioid Use Disorder
NAMO
Neurobiological Correlates of Autobiographical Memory Training to Improve Opioid Use Disorder Outcomes
1 other identifier
interventional
30
1 country
1
Brief Summary
The research study is being conducted to better understand memory function in people with opioid use disorder (OUD) and whether memory training can improve the symptoms and lives of people with OUD. Further, this study seeks to identify how brain and heart activity contribute to memory function and OUD symptoms. Participants will be asked to complete a baseline assessment, four weeks of at-home memory training (MemFlex), and a post-treatment follow-up assessment. Everyone enrolled will receive MemFlex as there is no placebo group. Each visit will include collection of a urine sample for drug testing. During the baseline and follow-up assessments, researchers will collect brain information using functional near-infrared spectroscopy (fNIRS) and heartbeat data using a wearable wristband sensor. MemFlex is a cognitive-behavioral intervention that does not pose any risk. However, the use of MemFlex in this study is experimental as it has not been tested in individuals with OUD. We will enroll 20 participants with OUD and 10 participants meeting healthy volunteer criteria.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Aug 2025
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 14, 2024
CompletedFirst Posted
Study publicly available on registry
October 16, 2024
CompletedStudy Start
First participant enrolled
August 19, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2026
ExpectedAugust 29, 2025
August 1, 2025
9 months
October 14, 2024
August 28, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Autobiographical Memory (AM) Recall (AMT-AI)
Specificity \[specific vs. general\] and valence \[positive, negative, neutral\] and PFC activity during AM recall.The AMT-AI outcomes will be the proportion of specific AMs in each condition (neutral, positive, negative) and mean ΔHbO in the mPFC and dlPFC (separately) during AM recall relative to the control block.
Pre and Post treatment assessment (weeks 1 and 5)
Study Arms (2)
Healthy controls
NO INTERVENTIONParticipants who meet criteria as healthy volunteers, will receive no MemFlex training but will undergo assessments as well as fNIRS computerized tasks.
OUD
EXPERIMENTALParticipants who meet criteria for OUD and are on a stable dose of medication assisted therapy for OUD will be trained in memory flexibility training (MemFlex) - cognitive training exercises.
Interventions
MemFlex employs cognitive training exercises in self-led sessions to improve 1) switching between specific and general AMs, 2) access to positive AMs, and 3) vividness of positive AMs.
Eligibility Criteria
You may qualify if:
- Age 18 years to 60 years old.
- Willingness to provide signed, informed consent and commit to completing study procedures
- Subjects must be willing and able to comply with scheduled visits, treatment plan, laboratory tests, and other study procedures, and must have access to a cellphone.
- OUD subjects: Lifetime self-reported history of OUD (according to DSM-5 criteria)
- OUD subjects: On a stable dose (at least 2 weeks without change) of MOUD (e.g., buprenorphine, methadone) as confirmed by self-report, urine drug screening, and/or the Prescription Drug Monitoring Program database.
- OUD subjects: Access to a stable residence or space to complete the at-home treatment module
You may not qualify if:
- Current severe psychiatric (e.g., bipolar disorder) or physical (e.g., dementia, Parkinson's disease) determined by self-reported history or physical exam and disorder deemed by PI to significantly interfere with brain function or make the study hazardous for the subject.
- Head trauma or injury deemed by PI as likely to impact the prefrontal cortex (e.g., loss of consciousness for more than 30 minutes or skull fracture, intracranial bleeding, or abnormal MRI) as determined by self-reported history or physical exam.
- Medical condition or medical treatment that may interfere with the subject's ability to complete the intervention, at discretion of the PI (e.g., extended surgery planned or expecting to give birth during the course of the study)
- Inability to sit upright while remaining relatively still and operating a mouse and keypad.
- Current ongoing participation in a research study or participation in a clinical trial and receipt of investigational drug(s) or intervention during 30 days prior to the research study, except as explicitly approved by the Principal Investigator.
- Currently prescribed opioid medication for treatment of pain or other disorder (besides opioid use disorder).
- OUD subjects: Past 1-year history of non-OUD substance use disorder (other than nicotine, alcohol, or cannabis use disorders).
- OUD subjects: Positive urine drug screen for any tested substances except for opioids, cocaine, and cannabis at screening or the baseline assessment visit (a test may be repeated if it is needed to confirm accuracy).
- HC subjects: Lifetime history of any substance use disorder (other than nicotine use disorder at any time and alcohol or cannabis use disorders more than 1 year ago).
- HC subjects: Positive urine drug screen for any tested substances at screening or the baseline assessment visit (a test may be repeated if it is needed to confirm accuracy).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Pennsylvania
Philadelphia, Pennsylvania, 19104, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 14, 2024
First Posted
October 16, 2024
Study Start
August 19, 2025
Primary Completion
May 1, 2026
Study Completion (Estimated)
June 1, 2026
Last Updated
August 29, 2025
Record last verified: 2025-08
Data Sharing
- IPD Sharing
- Will not share