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TerminatedNCT03291431Updated Oct 16, 2023Results posted

Intermittent Theta Burst for the Treatment of Alcohol Use Disorders in Veterans

An interventional study of Intermittent theta burst transcranial magnetic stimulation in Alcohol Use Disorder, Depressive Disorder and Cigarette Smoking, sponsored by Stanford University. Terminated at 2 sites in United States. Open to participants aged 21 Years to 65 Years. Per ClinicalTrials.gov, last updated 2023-10-16.

Sponsored by Stanford University · Not applicable, Interventional, and Treatment

Why this study was terminated
Recruitment difficulties due to Covid-19 pandemic
Phase
Not applicable
Study type
Interventional
Enrollment
17
Allocation
Randomized
Ages
21 Years to 65 Years
Sex
All
01

Study summary

The purpose of this study is to evaluate the efficacy of intermittent theta burst repetitive transcranial magnetic stimulation (iTBS) as a treatment for Veterans with an alcohol use disorder (AUD) to decrease the exceedingly high rate of relapse associated with this condition. iTBS has demonstrated equivalent efficacy and safety to repetitive transcranial magnetic stimulation employing 10Hz stimulation protocols in treatment of depressive disorders. The advantage of iTBS is that it can be delivered in approximately 5 minutes where conventional 10Hz repetitive transcranial magnetic stimulation (rTMS) protocols are typically 20-25 minutes. It is hypothesized that Veterans with AUD who receive active iTBS applied to the left dorsolateral prefrontal cortex (DLPFC), compared to controls (i.e., Veterans with AUD who receive sham iTBS), will show significant decreases alcohol craving, depressive symptomatology and cigarette consumptions, as well as improved neurocognition, a longer period of abstinence, and a lower overall rate of relapse over 6 months following standard psychosocial treatment for AUD at VA substance treatment clinics. In exploratory analyses, it is also predicted that magnetic resonance measures of left DLPFC glutamate concentration, volume of anterior frontal cortical brain regions, and performance on fMRI tasks interrogating the function of the salience/reward circuits will serve as biomarkers of iTBS treatment response. The goal of this proposal is to implement treatment that effectively promotes sustained abstinence in Veterans with AUD, given long-term abstinence is related to optimal neurobiological, neuropsychological and psychosocial recovery and functioning.

02

Conditions studied

  • Alcohol Use Disorder
  • Depressive Disorder
  • Cigarette Smoking

Keywords

  • alcohol use disorder
  • intermittent theta burst
  • Veterans
  • depressive disorder
  • cigarette smoking
03

Who can participate

Ages eligible
21 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • 21-65 years of age
  • Meet Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5) criteria for alcohol use disorder, and alcohol is self-identified as primary substance of misuse.
  • Actively in treatment at VA Palo Alto HCS Addiction Treatment Service
  • Able to read, verbalize understanding, and voluntarily sign the Informed Consent Form prior to participation in study procedures.

Exclusion criteria

Exclusion Criteria:

  • History of Schizophrenia Spectrum Disorders, Bipolar Disorders, a
  • Current substance use disorder that exceeds the severity of the AUD (based on DSM-5 diagnostic criteria)
  • Current use of an FDA approved medication (i.e., disulfiram, acamprosate, and naltrexone) for treatment of AUD,
  • Active current suicidal intent or plan (patients with a previous clinical flag for risk for suicide will be required to have an established safety plan involving their primary psychiatrist and the treatment team before entering the clinical trial),
  • Any form of previous TMS or electroconvulsive treatment.
  • Thyroid disease,
  • Unstable congestive heart failure, angina, other severe cardiac illness as defined by treatment regimen changes in the prior 3 months
  • Cerebrovascular accident
  • Cancer if \< 1 year since end of treatment
  • Unstable diabetes
  • COPD requiring oxygen supplementation
  • Alzheimer's disease
  • Parkinson's disease
  • Any Biomedical implants with ferromagnetic content
  • Neurostimulation devices, cardiac pacemakers or any magnetic resonance contraindications
  • Traumatic brain injury with self-reported or observed loss of consciousness > 30 minutes
  • Any primary or traumatically induced seizure disorder
  • Lack of fluency in English, Wechsler Adult Reading Test below the 7th percentile (i.e., moderate or greater impairment in estimated general intelligence),
  • Females who are pregnant or actively attempting pregnancy (conservative exclusion for magnetic resonance research),
  • Current use of any medication or substance that is documented to lower seizure threshold or has been identified as a contraindication for TMS treatment.
04

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
17 participants (actual)

Study arms

  • Active comparator
    Active iTBS

    Participants will be randomized to active or sham iTBS.

    Device: Intermittent theta burst transcranial magnetic stimulation

  • Sham comparator
    Sham iTBS

    Participants will be randomized to active or sham iTBS.

    Device: Intermittent theta burst transcranial magnetic stimulation

Interventions

  • DeviceIntermittent theta burst transcranial magnetic stimulation

    20 iTBS sessions (active or sham) administered over the course of 2 weeks

05

What researchers measure

Primary outcomes

  1. Number of Participants Who Were Abstinent Through Month 6

    Number of particiants in active vs. sham who maintained completed abstinence from alcohol/substance over 6 months post final rTMS session.

    Time frame: 6 months

Secondary outcomes

  1. Left Dorsolateral Prefrontal Region Glutamate/Creatine Ratio

    Left dorsolateral prefrontal region glutamate/creatine ratio pre and post active/sham iTBS. Data were recorded in international units (IU) and converted to Z scores based on the entire sample (unit normal distribution, mean of 0, standard deviation of 1). Higher Z scores (standard deviation above the mean) indicate a greater metabolite concentration ratio and better functioning.

    Time frame: baseline and follow-up (approximately 2 weeks)

  2. Left Dorsolateral Prefrontal Cortex Thickness

    Left dorsolateral prefrontal cortex thickness pre and post active/sham iTBS; hypothesized that increased thickness corresponds to improved cytoarchitectural integrity of the left dorsolateral prefrontal cortex.

    Time frame: baseline and follow-up (approximately 2 weeks)

  3. General Depressive Symptoms

    Beck Depression Inventory-II score pre and post active/sham iTBS (score range, 0 to 63, higher scores indicate more severe symptoms).

    Time frame: baseline and follow-up (approximately 2 weeks)

  4. Anhedonic Depressive Symptoms

    Anhedonic depressive symptoms from Mood and Anxiety Symptom Questionnaire (MASQ, 30-item version; score range: 10 to 50, high scores correspond to more severe symptoms).

    Time frame: baseline and follow-up (approximately 2 weeks)

06

Results

Posted Jun 22, 2023
Limitations and caveats
The study was terminated early before enrolling the planned number of participants, therefore the data analysis is underpowered.

Participant flow

From 20MAR20-31AUG21 no participants were recruited due the mandatory hiatus of recruitment of human participants (forced by the COVID-19 pandemic) and the Principal Investigator's mobilization to active military service. The PI discussed the recruitment issues with the Stanford NeuroChoice Initiative funding agency, and it was decided to discontinue recruitment in JUL21.

Participant flow — Overall Study
MilestoneActive iTBSSham iTBS
Started89
Completed57
Not completed32
Withdrew: Protocol violation21
Withdrew: Participant self-discharged against medical advice from treatment program during active study phase10
Withdrew: Residential treatment team requested participant withdraw due to multiple conflicting appointments.01

Outcome measures

PrimaryNumber of Participants Who Were Abstinent Through Month 6

Number of particiants in active vs. sham who maintained completed abstinence from alcohol/substance over 6 months post final rTMS session.

Time frame:
6 months
Reported as:
Count of participants · Participants
Number of Participants Who Were Abstinent Through Month 6
ParticipantsActive iTBSSham iTBS
Number of Participants Who Were Abstinent Through Month 657
Statistical analysis
  • Active iTBS vs Sham iTBS · Chi-squared · p = 0.99 (A p-value of \<0.05 is considered statistically significant.) · Pearson chi-square: 0.17
SecondaryLeft Dorsolateral Prefrontal Region Glutamate/Creatine Ratio

Left dorsolateral prefrontal region glutamate/creatine ratio pre and post active/sham iTBS. Data were recorded in international units (IU) and converted to Z scores based on the entire sample (unit normal distribution, mean of 0, standard deviation of 1). Higher Z scores (standard deviation above the mean) indicate a greater metabolite concentration ratio and better functioning.

Time frame:
baseline and follow-up (approximately 2 weeks)
Reported as:
Mean · z-score
Left Dorsolateral Prefrontal Region Glutamate/Creatine Ratio
z-scoreActive iTBSSham iTBS
baseline0.31 ± 0.290.02 ± 0.30
week 20.25 ± 0.290.29 ± 0.22
Statistical analysis
  • Active iTBS vs Sham iTBS · Mixed Models Analysis · p = 0.68 (p \< .05 considered statistically significant.) · Slope: -0.20Rate of change compared between groups using linear mixed modeling.
SecondaryLeft Dorsolateral Prefrontal Cortex Thickness

Left dorsolateral prefrontal cortex thickness pre and post active/sham iTBS; hypothesized that increased thickness corresponds to improved cytoarchitectural integrity of the left dorsolateral prefrontal cortex.

Time frame:
baseline and follow-up (approximately 2 weeks)
Reported as:
Mean · mm
Left Dorsolateral Prefrontal Cortex Thickness
mmActive iTBSSham iTBS
Baseline2.34 ± 0.142.36 ± 0.15
Follow-up2.39 ± 0.172.37 ± 0.19
Statistical analysis
  • Active iTBS vs Sham iTBS · Mixed Models Analysis · p = 0.34 (p-value \< .05 considered statistically significant.)
SecondaryGeneral Depressive Symptoms

Beck Depression Inventory-II score pre and post active/sham iTBS (score range, 0 to 63, higher scores indicate more severe symptoms).

Time frame:
baseline and follow-up (approximately 2 weeks)
Reported as:
Mean · score on a scale
General Depressive Symptoms
score on a scaleActive iTBSSham iTBS
Baseline18.4 ± 3.418.0 ± 3.1
Follow-up10.0 ± 4.011.9 ± 2.9
Statistical analysis
  • Active iTBS vs Sham iTBS · Mixed Models Analysis · p = 0.70 (p \< .05 considered statistically significant.) · Slope: -1.99Rate of change compared between groups using linear mixed modeling.
SecondaryAnhedonic Depressive Symptoms

Anhedonic depressive symptoms from Mood and Anxiety Symptom Questionnaire (MASQ, 30-item version; score range: 10 to 50, high scores correspond to more severe symptoms).

Time frame:
baseline and follow-up (approximately 2 weeks)
Reported as:
Mean · score on a scale
Anhedonic Depressive Symptoms
score on a scaleActive iTBSSham iTBS
baseline29.1 ± 2.832.7 ± 2.6
Follow-up22.5 ± 3.330.5 ± 2.4
Statistical analysis
  • Active iTBS vs Sham iTBS · Mixed Models Analysis · p = 0.11 (p \< .05 considered statistically significant.) · Slope: 0.30

Adverse events

Collected over Baseline through 6 months after conclusion of treatment. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Active iTBS0/8 (0%)0/8 (0%)0/8 (0%)
Sham iTBS0/9 (0%)0/9 (0%)0/9 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)Active iTBSSham iTBSTotal
Mean32.0 ± 9.848.5 ± 12.442.3 ± 11.1
Sex: Female, Male
Sex: Female, Male(Participants)Active iTBSSham iTBSTotal
Female011
Male8816
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Active iTBSSham iTBSTotal
Hispanic or Latino224
Not Hispanic or Latino6713
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Active iTBSSham iTBSTotal
American Indian or Alaska Native213
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American123
White5611
More than one race000
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(Participants)Active iTBSSham iTBSTotal
United States8917
Education
Education(years)Active iTBSSham iTBSTotal
Mean13.5 ± 1.513.3 ± 1.813.4 ± 1.7
07

Study locations

2 sites
  • Palo Alto VA Health Care System
    Palo Alto, California 94304, United States
  • Stanford University
    Stanford, California 94305, United States
08

References and documents

Study documents

  • Protocol and statistical analysis plan · Aug 1, 2017
  • Informed consent form · Nov 29, 2021

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

09

Registry details

Key details

Study ID
NCT03291431
Lead sponsor
Stanford University
Responsible party
Timothy Durazzo, PhD (Associate Professor, Stanford University) — Principal investigator
First posted
Sep 25, 2017
Start date
Dec 1, 2017
Primary completion
Jan 30, 2022
Completion
Jul 30, 2022
Results posted
Jun 22, 2023
Last update
Oct 16, 2023

Study contacts

Timothy C Durazzo, PhD
principal investigator · Stanford University

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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