Exercise in Methamphetamine Use Disorder Upregulation and Neural Function

NCT ID: NCT03709667

Last Updated: 2024-05-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

EARLY_PHASE1

Total Enrollment

113 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-06-26

Study Completion Date

2023-08-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The purpose of this research study is to determine the effects of an exercise intervention and health-education program on brain dopamine receptors and on cognitive functions that have been linked to these receptors.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

After completing baseline assessments within 2 wks after admission, participants will be randomized to one of two interventions: Exercise (EX, active intervention), consisting of 3x-weekly 50-min aerobic + resistance-training sessions for 8 wk; Health Education (control intervention, CON), consisting of 50-min health education sessions 3x-weekly for 8 wk. Participants will undergo positron emission tomography (PET) and functional magnetic resonance imaging (fMRI) scans while performing the stop signal task (SST) and the reversal learning task (RLT) (cognitive computer tasks) at baseline and after completing the 8-wk protocol.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Methamphetamine Abuse

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

EX

Participants in this arm of the study will be randomized in to the exercise intervention.

Group Type EXPERIMENTAL

EX

Intervention Type BEHAVIORAL

An individualized aerobic and resistance-exercise program will be developed for each participant on the basis of a maximal incremental exercise test and strength assessments performed at baseline. This test will measure aerobic capacity (VO2 max) and the metabolic or lactate threshold (VO2θ) (i.e., the level of O2 uptake that defines one's ability to perform prolonged work), using indirect calorimetry with an automated metabolic-measurement system. The intervention will comprise 24 sessions over 8 wk (3x/wk), supervised by a credentialed exercise specialist. Each session will consist of a 5-min warm-up, 30-40 min of aerobic activity on a treadmill, 15-20 min of resistance training, and a 5-min cool-down.

CON

The control condition is a health-education intervention.

Group Type PLACEBO_COMPARATOR

CON

Intervention Type BEHAVIORAL

Participants attend 50-min sessions 3x/wk matched to EX for staff contact. A counselor will facilitate integrative group discussions, and will conduct a multimedia program addressing various health, wellness and lifestyle topics, such as nutrition, dental care, stress relief, sleep hygiene, relationships, immunizations, health screening, smoking, environmental health, and time management.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

EX

An individualized aerobic and resistance-exercise program will be developed for each participant on the basis of a maximal incremental exercise test and strength assessments performed at baseline. This test will measure aerobic capacity (VO2 max) and the metabolic or lactate threshold (VO2θ) (i.e., the level of O2 uptake that defines one's ability to perform prolonged work), using indirect calorimetry with an automated metabolic-measurement system. The intervention will comprise 24 sessions over 8 wk (3x/wk), supervised by a credentialed exercise specialist. Each session will consist of a 5-min warm-up, 30-40 min of aerobic activity on a treadmill, 15-20 min of resistance training, and a 5-min cool-down.

Intervention Type BEHAVIORAL

CON

Participants attend 50-min sessions 3x/wk matched to EX for staff contact. A counselor will facilitate integrative group discussions, and will conduct a multimedia program addressing various health, wellness and lifestyle topics, such as nutrition, dental care, stress relief, sleep hygiene, relationships, immunizations, health screening, smoking, environmental health, and time management.

Intervention Type BEHAVIORAL

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

1. Language: Participants must be fluent in English, as demonstrated by verbal skills sufficient to participate in a conversation, including the ability to ask and answer questions at a level that assures adequate understanding of the study. A comprehension quiz will be administered.
2. Age 18-65 years
3. Meets Diagnostic and Statistical Manual of Mental Disorders (DSM)-5 criteria for moderate to severe stimulant use disorder assessed by MINI.
4. Vital Signs: Within the clinically acceptable normal range (e.g., resting pulse 50 to 99/min, blood pressure between 85-150 mm Hg systolic and 45-90 mm Hg diastolic.
5. Labs: hematology and chemistry laboratory test results within normal (+/- 10%) limits.
6. Right handed.

Exclusion Criteria

1. Neurological disease: history of seizure disorder, brain injury with loss of consciousness \> 30 min, or other neurological disorder that would interfere with informed consent, data interpretation or participant safety.
2. Musculoskeletal disease that would prevent participation in exercise.
3. Current psychotic disorder assessed by the MINI.
4. Current suicidal ideation/plan, assessed by the Patient Health Questionnaire-9.
5. Heart disease: Hypertension or unstable pulmonary or cardiovascular disease that would interfere with participation in the EX regimen
6. Evidence of untreated or unstable medical illness, including endocrine, autoimmune, renal, hepatic, or active infectious disease, which might compromise safe participation (HIV+ participants must be receiving a stable regimen of antiretroviral medication throughout the course of the study).
7. Pregnancy \[Women must provide negative pregnancy urine tests before study entry\].
8. Asthma or use of theophylline, α- and β-adrenergic agonists, or other sympathomimetics.
9. Medications: Antihypertensive agents, antidepressants, and antiretroviral medications are prescribed to some clients at Cri-Help. Any participant taking any medication that has direct dopaminergic action (e.g., bupropion, neuroleptics) will be excluded, but other chronic medications such as selective serotonin reuptake inhibitors will be allowed. Any participant taking a medication chronically must maintain a stable dose throughout the study; antiretrovirals and antidepressants must be initiated at least 1 week before baseline scan.
10. Radiation Exposure: Participants who have participated in any other research study involving exposure to ionizing radiation in the past year if the total cumulative dose from the past research studies and the current research study would exceed the limits described by the FDA in 21 Code of Federal Regulations 361.1. Specifically, the total annual cumulative dose to the body, active blood-forming organs, lens of the eye and gonads must remain below 5 rems and the total annual cumulative dose to all other organs must remain below 15 rems. Potential participants who have had exposure to ionizing radiation in the past year cannot be allowed to participate if the investigators are unable to obtain proper documentation quantifying the amount of past exposure.
11. Metal devices: (e.g., pacemaker, infusion pump, aneurysm clip, prosthesis, plate) in the body.Presence of such a device could interfere with scan acquisition or pose a potential risk during MRI. \[A participant who has an implanted device can enroll with documentation that the device is MRI-compatible.
12. Claustrophobia: Subjects will be questioned about their potential discomfort with enclosed spaces, such as an MRI scanner. Subjects reporting problems with enclosed spaces will be excluded.
13. Any other condition that would compromise safe participation, determined by the study physician.
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

National Institute on Drug Abuse (NIDA)

NIH

Sponsor Role collaborator

University of California, Los Angeles

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Edythe London

Professor of Psychiatry and Biobehavioral Sciences and Molecular and Medical Pharmacology

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

University of California Los Angeles

Los Angeles, California, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

Provided Documents

Download supplemental materials such as informed consent forms, study protocols, or participant manuals.

Document Type: Informed Consent Form

View Document

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

R01DA045162

Identifier Type: NIH

Identifier Source: secondary_id

View Link

18-000496

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Targeting Drug Memories With Methylphenidate
NCT05978167 ACTIVE_NOT_RECRUITING EARLY_PHASE1
Studying Amphetamine Withdrawal in Humans
NCT01215929 COMPLETED PHASE2