Study Stopped
Lack of funding
Using rTMS to Explore Neural Mechanisms of Stress-Induced Opioid Use
OTC-1
Using Repetitive Transcranial Magnetic Stimulation (rTMS) to Explore Neural Mechanisms of Stress-Induced Opioid Use
1 other identifier
interventional
N/A
0 countries
N/A
Brief Summary
This study will use a stress (vs. placebo) exposure model, paired with single-session sham vs. active rTMS at two distinct cortical locations (dlPFC vs. mPFC in parallel groups) to assess whether rTMS neuromodulation at these alternative loci differentially influence stress-reactivity and opioid reinforcement in non-treatment seeking participants with OUD. Stress-reactivity will be measured using cognitive, affective, behavioral and biological phenotypes.
Trial Health
Trial Health Score
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Started Apr 2023
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Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 24, 2019
CompletedFirst Posted
Study publicly available on registry
November 29, 2019
CompletedStudy Start
First participant enrolled
April 10, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 10, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
April 10, 2023
CompletedApril 13, 2023
April 1, 2023
Same day
November 24, 2019
April 10, 2023
Conditions
Outcome Measures
Primary Outcomes (19)
Addiction Stroop task
reaction time (msec) measure of cognitive interference
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Digit Span Task
number of digits recalled, measure of verbal working memory
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Wisconsin Card Sorting Task
number of correct items, measures ability to shift set and assesses cognitive flexibility
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Monetary Incentive Delay task
number of rewards received, measure of motivation
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Delay Discounting task
rate of monetary discounting
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Drug/Money Choice Task
number of hypothetical choices between a constant amount of preferred opioid (relative to money)
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Blood pressure
Systolic/diastolic BP (mm Hg)
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Heart rate
Heart rate (beats/min)
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Saliva cortisol level
Saliva cortisol level (µg/dL)
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Saliva alpha-amylase level
Saliva alpha-amylase level (U/mL)
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Serum prolactin level
Serum prolactin level (pg/dL)
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Serum BDNF level
Serum brain derived neurotrophic factor level (pg/dL)
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Positive and Negative Affect Schedule (PANAS) positive affect
10-item sub scale score of positive affect
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Positive and Negative Affect Schedule (PANAS) negative affect
10-item sub scale score of negative affect
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
State Trait Anxiety Inventory
state anxiety scores
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Desire for Drug Questionnaire
opioid craving score
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Opiate-32 Questionnaire, Agonist score
total opioid agonist score (16 items)
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Opiate-32 Questionnaire, Withdrawal score
total opioid withdrawal symptom score (16 items)
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Resting-state EEG activation
relative (gamma band ÷ slow band) ratio in electroencephalogram (EEG) power during resting state
change from pre- and post-intervention in each of 4 sessions (through study completion, about 1 month total)
Study Arms (4)
placebo stressor, sham rTMS
PLACEBO COMPARATORplacebo stressor (lactose), sham rTMS (inactive coil)
placebo stressor, active rTMS
ACTIVE COMPARATORplacebo stressor (lactose), active rTMS (10 Hz dlPFC in group 1; 1 Hz mPFC in group 2)
stressor, sham rTMS
ACTIVE COMPARATORstressor (yohimbine 54mg + hydrocortisone 20mg), sham rTMS (inactive coil)
stressor, active rTMS
ACTIVE COMPARATORstressor (yohimbine 54mg + hydrocortisone 20mg), active rTMS (10 Hz dlPFC in group 1; 1 Hz mPFC in group 2)
Interventions
Yohimbine 54mg + Hydrocortisone 20mg
active rTMS (10 Hz dlPFC stimulation in group 1; 1 Hz mPFC stimulation in group 2)
Eligibility Criteria
You may qualify if:
- Meet DSM-5 criteria for OUD
- Age 21-60 yr
- Right handed
- Males and non-pregnant/non-lactating females
- Cognitively intact (total IQ score \>80 on Shipley Institute of Living Scale
- Screening cardiovascular indices within ranges for safe use of the pharmacological stressor: resting HR 50-90 bpm, systolic BP 90-140 mmHg, and diastolic BP 50-90 mmHg
- Use alcohol and/or marijuana \<3 times/week; each "time" should consist of \<1 marijuana "joint" equivalent and \<3 alcoholic drinks.
You may not qualify if:
- Under influence of any substance during session
- Past 7-day use of illicit drugs other than opioids (except marijuana, which is legal in Michigan)
- Urinalysis positive for cocaine metabolites, benzodiazepines, barbiturates, amphetamines or pregnancy
- Medical conditions prohibiting use of rTMS (e.g. seizure history; based on rTMS screening questionnaire)
- Lifetime diagnosis of: psychotic disorder, bipolar disorder, generalized anxiety disorder, or obsessive compulsive disorder; major depression in the past 5 years; or potentially antisocial personality disorder (if the clinical psychologist judges such behaviors to be potentially disruptive or unsafe in our lab)
- Past-year SUD other than OUD
- Acute/unstable illness: conditions making it unsafe for participation (e.g. neurological, cardiovascular, pulmonary, or systemic diseases)
- Lactose intolerance (placebo dose)
- Any prohibited medications: medications that lower seizure threshold, psychiatric medications, prescription pain medications, or blood pressure medications
- Chronic head or neck pain
- Past-month participation in a research study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Mark Greenwald, PhD
Wayne State University
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Masking Details
- placebo for stressor, and sham figure of 8 coil for rTMS
- Purpose
- BASIC SCIENCE
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
November 24, 2019
First Posted
November 29, 2019
Study Start
April 10, 2023
Primary Completion
April 10, 2023
Study Completion
April 10, 2023
Last Updated
April 13, 2023
Record last verified: 2023-04
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL
- Time Frame
- Available after the study is completed
- Access Criteria
- Qualified investigators may apply in writing.
After the study is completed, qualified investigators may apply in writing to receive the study protocol. At this time, it has not been determined whether data will be shared and the conditions for access.