Study Stopped
Study never initiated
Relapse Prevention in Stimulant Use Disorder
1 other identifier
interventional
N/A
1 country
1
Brief Summary
The purpose of this study is to assess the relationship between bupropion, stimulant use and relapse, ADHD (Attention Deficit Hyperactivity Disorder), and measures of mood, drug craving, and inhibitory control in individuals enrolled in inpatient treatment for stimulant-use disorder with and without ADHD. The experimenters hypothesize that Bupropion and Contrave (Bupropion/Naltrexone) will increase inhibitory control and decrease drug craving and depressive symptoms in recently abstinent stimulant users in inpatient treatment with effects greater than those seen in recently abstinent stimulant users completing inpatient treatment as usual. An additional hypothesis is that relapse rates after leaving inpatient treatment in the group receiving bupropion will be lower than those of the group completing inpatient treatment as usual. The study design consists of four assessments of drug craving, inhibitory control, impulsive choice, and mood (depression and anxiety). The timepoints for these assessments include: A. baseline after entering treatment B. 2 weeks after starting drug C. 8 weeks after starting drug, and D. 1 month after leaving treatment. Following eligibility screening, 60 stimulant users will be enrolled in one of 3 groups. Group 1 Bupropion Active Group: 20 subjects will receive bupropion for 8 weeks during inpatient treatment. Group 2 Contrave Active Group: 20 subjects will receive Contrave for 8 weeks during inpatient treatment. Group 3 Control Group: 20 subjects enrolled in inpatient treatment will complete treatment as usual as well as the four assessments (A-D) described above but will not receive drug (convenience control). Half of the subjects in each group will be diagnosed with ADHD and half will not, for a total of 10 subjects per group with ADHD.
Trial Health
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Started Jun 2023
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 3, 2020
CompletedFirst Posted
Study publicly available on registry
September 17, 2020
CompletedStudy Start
First participant enrolled
June 11, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 11, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
January 11, 2025
CompletedSeptember 22, 2023
September 1, 2023
1.6 years
June 3, 2020
September 20, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Stimulant use 1 month after leaving inpatient treatment (self-report)
Stimulant use 1 month after leaving inpatient treatment, assessed via self-report. toxicology
84 days
Stimulant use 1 month after leaving inpatient treatment (urine toxicology)
Stimulant use 1 month after leaving inpatient treatment, assessed via urine sample.
84 days
Secondary Outcomes (8)
Sustained attention
84 days
Working memory
84 days
Declarative memory
84 days
Inhibitory control - stop signal task
84 days
Inhibitory control - reversal learning
84 days
- +3 more secondary outcomes
Other Outcomes (3)
Personality - impulsivity
84 days
Personality - novelty seeking
84 days
Personality - reward dependence
84 days
Study Arms (3)
Contrave
EXPERIMENTALParticipants will receive daily weight loss medication, Contrave, at a dose of 360 mg (Naltrexone HCl 32mg, Bupropion HCl 360mg). The dose will be titrated: 8 mg/90 mg on Week 1, 16 mg/180 mg on Week 2, 24 mg/270 mg on Week 3 and 32 mg/360 mg on Week 4. Dosing will continue for a total of 4 weeks during inpatient treatment, and thereafter for another month, with compliance monitored by smartphone.
Bupropion
EXPERIMENTALParticipants will receive daily extended-release oral bupropion (Wellbutrin XL) at a dose of 450 mg. The dose will be titrated: 150 mg on Days 1 and 2, 300 mg on Days 3 and 4, and 450 mg on Day 5. Dosing will continue for a total of 4 weeks during inpatient treatment, and thereafter for another month, with compliance monitored by smartphone. A reduction to 300 mg will permitted to alleviate medication-related adverse effects if they occur.
Treatment As Usual
NO INTERVENTIONParticipants will complete inpatient treatment as usual and will not receive any medication. This arm serves as a TAU control to compare outcomes versus Bupropion and Contrave arms.
Interventions
Naltrexone HCl/Bupropion HCl is an FDA-approved weight-loss medication with efficacy via the mesolimbic dopamine system to reduce hunger and help control cravings.
Bupropion is FDA-approved and marketed both as an antidepressant agent (Wellbutrin®) and treatment for smoking cessation (Zyban®) and has shown efficacy in reducing symptoms of depression and drug craving in stimulant users. it is also a promising candidate to improve cognition function.
Eligibility Criteria
You may qualify if:
- English fluency (in order to provide informed consent and complete questionnaires)
- Age of 18-65 years inclusive
- Meeting DSM 5 criteria for Stimulant-use disorder
- Being 2-8 weeks abstinent from drugs of abuse other than nicotine (in cigarettes)
- Vital signs as follows: resting pulse between 50 and 95 bpm, blood pressures between 90-150 mm Hg systolic and 45-95 mm Hg diastolic (inclusive)
- Hematology and chemistry laboratory test results within normal (+/- 20%) limits and/or indicative of normal kidney function (estimated glomerular filtration rate ≥ 90 ml/min/1.73 m2) and/or not indicative of active disorder or infection.
- Baseline ECG demonstrating normal conduction (including QTc) without clinically significant arrhythmias
- Absence of clinically significant contraindications for participation, in the judgment of the admitting physician and the principal investigator, assessed by a medical history and physical examination.
- Entering into and remaining in treatment voluntarily.
You may not qualify if:
- Age of \<18 or \>65 years.
- Current or past history of seizure disorder, including alcohol- or stimulant-related seizure, or significant family history of idiopathic seizure disorder or conditions that increase seizure risk (arteriovenous malformation, severe head injury, CNS tumor, CNS infection, stroke, anorexia nervosa or bulimia (current or prior diagnosis), and current use of drugs that lower seizure threshold
- Current severe substance use disorder assessed by the MINI on any psychoactive substance (e.g., opioids) other than methamphetamine, cocaine or nicotine, or have physiological dependence on alcohol or a sedative-hypnotic (e.g., a benzodiazepine) requiring medical detoxification, or undergoing abrupt discontinuation of ethanol or sedatives including anticonvulsants, barbiturates, or benzodiazepines
- Prior therapy with any opiate-substitutes (methadone, LAAM, buprenorphine) within 2 months of enrollment.
- Previous adverse reaction to Bupropion or Naltrexone.
- Current use of a. Bupropion, Naltrexone, opiates or opiate-substitutes, stimulants b.Any medications that directly affect dopaminergic or serotonergic neurotransmission in brain (i.e., SNRI, MAO-I, TCA) c. Any neuroleptic agent d. Systemic corticosteroids, Xanthines (i.e., theophylline) e. Sympathomimetics f. Antiretrovirals (i.e., nelfinavir, ritonavir and efavirenz) g. Linezolid or IV methylene blue h. Warfarin
- MAO-I use in the 2 weeks before enrollment
- Disease or injury preventing use of both eyes and ability to complete computer tasks assessing cognitive function (e.g. glaucoma, colorblindness)
- Brain injury with loss of consciousness \>30 min
- Pre-existing psychotic disorders, bipolar disorder, organic brain disorder, or dementia as assessed by the MINI interview, or medical disorder, any of which require an excluded medication (e.g., antidepressant, neuroleptic, systemic corticosteroid, xanthine) or which would make medication compliance difficult.
- Electroconvulsive therapy within the 90 days before screening.
- Current suicidal ideation or plan, as assessed by the MINI
- Untreated or unstable medical illness including, but not limited to endocrine, autoimmune, renal, hepatic, active infectious disease (like active tuberculosis and active syphilis), diabetes or use of insulin, neurological disorders (including, but not limited to Parkinson's disease, dementia.), uncontrolled hypertension (See NIDA Guidelines on Hypertension in the Operations Manual), significant heart disease (including but not limited to angina, any ECG/cardiovascular abnormality e.g., QTc interval prolongation \> 450 milliseconds in men or 480 milliseconds in women or myocardial infarction within one year of enrollment).
- Pregnancy or lactation \[Note: Female participants must be either postmenopausal or using a reliable form of contraception (e.g., abstinence, oral contraceptive pills, intrauterine device, sterilization, condoms or spermicide). Women must have negative urine tests for pregnancy at study entry and at every weekly session\]
- Diagnosis of adult (i.e., 21 years or older) asthma, or chronic obstructive pulmonary disease (COPD), including those with a history of acute asthma within the 2 years before enrollment, and current or recent (past 3 months) treatment with theophylline, or have an FEV1 \<70 %.
- +4 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of California Los Angeles
Los Angeles, California, 90024, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Edythe D London, Ph.D.
University of California, Los Angeles
Study Design
- Study Type
- interventional
- Phase
- early phase 1
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- BASIC SCIENCE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor of Psychiatry and Biobehavioral Sciences and Molecular and Medical Pharmacology
Study Record Dates
First Submitted
June 3, 2020
First Posted
September 17, 2020
Study Start
June 11, 2023
Primary Completion
January 11, 2025
Study Completion
January 11, 2025
Last Updated
September 22, 2023
Record last verified: 2023-09