NCT05558358

Brief Summary

We will evaluate the effects of deep brain stimulation (DBS) of bilateral nucleus accumbens (NAc) added to background treatment for treatment refractory Methamphetamine Use Disorder (MUD). This is a small randomized cross-over study to demonstrate feasibility and safety, test treatment outcomes (use, craving), and identify novel biological targets (NAc local field potentials (LFP) and functional MRI).

Trial Health

75
On Track

Trial Health Score

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

Enrollment
2

participants targeted

Target at below P25 for phase_1

Timeline
1mo left

Started Jan 2024

Typical duration for phase_1

Geographic Reach
1 country

1 active site

Status
active not recruiting

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

Study Progress97%
Jan 2024May 2026

First Submitted

Initial submission to the registry

September 19, 2022

Completed
9 days until next milestone

First Posted

Study publicly available on registry

September 28, 2022

Completed
1.3 years until next milestone

Study Start

First participant enrolled

January 15, 2024

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2026

Last Updated

April 30, 2025

Status Verified

April 1, 2025

Enrollment Period

2.4 years

First QC Date

September 19, 2022

Last Update Submit

April 29, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Incidence of study-emergent adverse events

    Participants will be closely monitored for adverse events throughout the study including regular meetings with study staff and administration of the COMBINE SAFTEE during each programming session.

    56 weeks

Secondary Outcomes (12)

  • Methamphetamine use

    Measured during weeks 26-30 and weeks 52-56 (last month on stimulation and sham)

  • Methamphetamine use

    Measured during weeks 26-30 and weeks 52-56 (last month on stimulation and sham)

  • Methamphetamine craving

    Comparing weeks 26-30 and weeks 52-56

  • Local Field Potential

    baseline through week 56

  • MRI

    56 weeks

  • +7 more secondary outcomes

Study Arms (2)

1

EXPERIMENTAL

Randomized sham-controlled crossover design - participants have baseline assessments/evaluation, 1 week detoxification, surgery, 30 days residential care, then begin DBS stimulation, 12 weeks IOP/CM and are followed for 52 weeks.

Device: Experimental 1 - DBS of bilateral NAc - 6 months of active stimulation -- > 6 months of sham stimulation

2

EXPERIMENTAL

Randomized sham-controlled crossover design - participants have baseline assessments/evaluation, 1 week detoxification, surgery, 30 days residential care, then begin DBS stimulation, 12 weeks IOP/CM and are followed for 52 weeks.

Device: Experimental 2 - DBS of bilateral NAc - 6 months of sham stimulation -- > 6 months of active stimulation

Interventions

6 months of active stimulation -- \> 6 months of sham stimulation

1

6 months of sham stimulation -- \> 6 months of active stimulation

2

Eligibility Criteria

Age22 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adults (men and non-pregnant or nursing women) between 22-65 years of age will be eligible for enrollment, if meeting the following criteria:
  • Current diagnosis of DSM-5 MUD (with past year specifier of severe and at least a 5-year history);
  • Failed at least 2 prior treatment episodes (defined as outpatient or inpatient, utilizing a previously validated psychosocial treatment for addiction such as cognitive behavioral therapy, contingency management, motivational interviewing (Stuart et al., 2019) and not counting episodes with only detoxification) for MUD, with at least 1 episode having been residential;
  • Provides a urine drug screen positive for mAMP;
  • Endorses at least 10 days of mAMP use in the past month;
  • Able to complete 1 week of inpatient detoxification prior to surgery and 4 weeks of inpatient treatment following surgery;
  • No change in current psychiatric medication regimen, or medication free, for at least 4 weeks prior to entry;
  • Able to provide informed consent;
  • Able to comply with all testing and follow-up requirements as defined by study protocol (including providing a home address and two local collateral contacts);
  • Medically able to undergo DBS procedure as assessed by Study Neurosurgeon;
  • Has platelet count, PT and PTT within normal laboratory limits;
  • Adequate English proficiency for study consent, and completion of the study instruments;
  • Reside in the state of Colorado.

You may not qualify if:

  • Lifetime non-substance-induced psychotic disorders, schizophrenia, or schizoaffective disorder defined by DSM-5;
  • Current diagnosis of DSM-5 drug use disorder other than stimulant, alcohol, cannabis or nicotine use disorder;
  • Non-substance-induced manic episode within the past 3 years or major depressive episode in the past year;
  • Current clinically significant neurological disorder or medical illness;
  • Presence of a clinically significant abnormality on preoperative MRI;
  • Inability to have an MRI;
  • Inability to undergo general anesthesia required for tunneling of extension cable and placement of the batteries;
  • Pregnancy or lack of use of effective contraception in women of childbearing age, as assessed by urine pregnancy test and self-report (participants will consent to continue effective contraceptives during the study);
  • Coagulopathy, as determined by PT, PTT, platelet count, and medical history;
  • History of recurrent infections;
  • Inability to adhere to the requirements of the study;
  • Imminent risk of suicide as determined by Study Psychiatrist's assessment and investigators' clinical judgment or past-year suicide attempt, any positive response on baseline Columbia Suicide Severity Scale or history of parental completed suicide;
  • Active criminal justice involvement (i.e., any unresolved legal problems that could jeopardize continuation or completion of the study);
  • History of head injury with loss of consciousness for more than 15 minutes, neurological illness (including primary seizure disorder);
  • Diagnosis of dementia;
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Colorado Anschutz Medical Campus

Aurora, Colorado, 80045, United States

Location

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Masking Details
Participants and all study personnel are blinded to subject assignment except the physician completing DBS programming.
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: All participants undergo surgery. Some receive 6 months of active DBS stimulation of the bilateral nucleus accumbens followed by 6 months of sham stimulation. While some receive the opposite order.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 19, 2022

First Posted

September 28, 2022

Study Start

January 15, 2024

Primary Completion (Estimated)

May 31, 2026

Study Completion (Estimated)

May 31, 2026

Last Updated

April 30, 2025

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will not share

Locations