NCT04228276

Brief Summary

The purpose of this study is to establish a new treatment (repetitive transcranial stimulation (rTMS)) for Veterans with stimulant use disorder (SUD). Despite the large public health burden imposed by SUD, there is currently no FDA-approved or widely recognized effective somatic treatment. rTMS may be a promising treatment option for SUD. In this study, we will demonstrate the feasibility of applying rTMS to Veterans with SUD, examine the efficacy of rTMS in the treatment of SUD, and explore biomarkers that may guide patient selection for rTMS treatment and predict treatment response.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Feb 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 7, 2020

Completed
7 days until next milestone

First Posted

Study publicly available on registry

January 14, 2020

Completed
1.1 years until next milestone

Study Start

First participant enrolled

February 5, 2021

Completed
3.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2024

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2024

Completed
12 months until next milestone

Results Posted

Study results publicly available

May 15, 2025

Completed
Last Updated

August 29, 2025

Status Verified

August 1, 2025

Enrollment Period

3.2 years

First QC Date

January 7, 2020

Results QC Date

April 29, 2025

Last Update Submit

August 15, 2025

Conditions

Keywords

Magnetic resonance imagingTranscranial magnetic stimulationDopamineReward processing

Outcome Measures

Primary Outcomes (1)

  • Number of Participants Relapsed

    Rate of stimulant use relapse compared between active vs. sham rTMS groups

    3 months after last rTMS treatment

Secondary Outcomes (1)

  • Reward Circuit Function and Signaling

    Within 1 week before and after rTMS treatment

Study Arms (2)

Active rTMS

EXPERIMENTAL

Receive active rTMS

Device: Repetitive transcranial magnetic stimulation (rTMS)

Sham rTMS

SHAM COMPARATOR

Receive sham rTMS

Device: Repetitive transcranial magnetic stimulation (rTMS)

Interventions

rTMS is a non-invasive procedure in which administering a transient magnetic field induces electrical currents in specific, targeted brain regions. The intervention (active and sham) will be administered in 8 sessions across 2 weeks. The brain region targeted is the dorsolateral prefrontal cortex.

Active rTMSSham rTMS

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Structured Clinical Interview for DSM Disorders (SCID) confirmed diagnosis of SUD, severe
  • Last use of stimulants \>1 and \<6 weeks
  • Stable medication regimen (no change in dose or agents between 2 weeks prior to the start of and throughout the treatment phase of the study)
  • Stable social environment and housing to enable regular attendance at clinic visits.
  • Ability to undergo cognitive testing, functional magnetic resonance imaging (fMRI) scans, and rTMS (no contraindications)
  • Intelligence Quotient (IQ) \> 80
  • Stable medical health
  • Veteran at Palo Alto VA's Addiction Treatment Services

You may not qualify if:

  • Pregnant or lactating female
  • History of prior adverse reaction to TMS
  • On medications thought to significantly lower seizure threshold, e.g.:
  • clozapine
  • chlorpromazine
  • clomipramine
  • bupropion \> 400 mg/day
  • Use of direct dopaminergic antagonists or agonists
  • History of seizures or conditions known to substantially increase risk for seizures
  • Implants or medical devices incompatible with TMS
  • Acute or unstable chronic medical illness that would affect participation or compliance with study procedures, e.g. unstable angina
  • Unstable psychiatric symptoms that precludes consistent participation in the study, e.g.:
  • active current suicidal intent or plan
  • severe psychosis
  • Inability to undergo fMRI scan, e.g. claustrophobia, presence of ferromagnetic objects in subject's body
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

VA Palo Alto Health Care System, Palo Alto, CA

Palo Alto, California, 94304-1207, United States

Location

MeSH Terms

Conditions

Substance-Related Disorders

Interventions

Transcranial Magnetic Stimulation

Condition Hierarchy (Ancestors)

Chemically-Induced DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Magnetic Field TherapyTherapeutics

Limitations and Caveats

COVID-19 pandemic adversely affected recruitment.

Results Point of Contact

Title
Dr. Jong Yoon
Organization
Palo Alto VA

Study Officials

  • Jong H. Yoon, MD

    VA Palo Alto Health Care System, Palo Alto, CA

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Participants will be randomly assigned to one of two groups to receive active or sham rTMS.
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 7, 2020

First Posted

January 14, 2020

Study Start

February 5, 2021

Primary Completion

April 30, 2024

Study Completion

June 1, 2024

Last Updated

August 29, 2025

Results First Posted

May 15, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will not share

Locations