Trial Outcomes & Findings for Pilot TMS for Methamphetamine Use Disorder (NCT NCT04449055)

NCT ID: NCT04449055

Last Updated: 2026-01-16

Results Overview

Time to discontinuation of psychosocial treatment

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

19 participants

Primary outcome timeframe

Baseline to 18 days (continuous--assessed weekly)

Results posted on

2026-01-16

Participant Flow

Participant milestones

Participant milestones
Measure
DPFC First
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Overall Study
STARTED
6
5
Overall Study
COMPLETED
1
3
Overall Study
NOT COMPLETED
5
2

Reasons for withdrawal

Reasons for withdrawal
Measure
DPFC First
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Overall Study
Lost to Follow-up
2
1
Overall Study
Missed 4 treatments--removed by PI
1
1
Overall Study
Could not refrain from methamphetamine for 24 hours before treatment--removed by PI
1
0
Overall Study
Incarcerated
1
0

Baseline Characteristics

Pilot TMS for Methamphetamine Use Disorder

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Total
n=11 Participants
Total of all reporting groups
Age, Continuous
37.7 years
STANDARD_DEVIATION 10.9 • n=9 Participants
39.6 years
STANDARD_DEVIATION 10.5 • n=6 Participants
38.5 years
STANDARD_DEVIATION 10.2 • n=9 Participants
Sex: Female, Male
Female
3 Participants
n=9 Participants
2 Participants
n=6 Participants
5 Participants
n=9 Participants
Sex: Female, Male
Male
3 Participants
n=9 Participants
3 Participants
n=6 Participants
6 Participants
n=9 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=9 Participants
0 Participants
n=6 Participants
1 Participants
n=9 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants
n=9 Participants
4 Participants
n=6 Participants
9 Participants
n=9 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=9 Participants
1 Participants
n=6 Participants
1 Participants
n=9 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=9 Participants
1 Participants
n=6 Participants
1 Participants
n=9 Participants
Race (NIH/OMB)
Asian
0 Participants
n=9 Participants
0 Participants
n=6 Participants
0 Participants
n=9 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=9 Participants
0 Participants
n=6 Participants
0 Participants
n=9 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=9 Participants
0 Participants
n=6 Participants
0 Participants
n=9 Participants
Race (NIH/OMB)
White
5 Participants
n=9 Participants
4 Participants
n=6 Participants
9 Participants
n=9 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=9 Participants
0 Participants
n=6 Participants
1 Participants
n=9 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=9 Participants
0 Participants
n=6 Participants
0 Participants
n=9 Participants
Region of Enrollment
United States
6 participants
n=9 Participants
5 participants
n=6 Participants
11 participants
n=9 Participants

PRIMARY outcome

Timeframe: Baseline to 12 weeks (continuous)

Population: Participants who received at least one treatment.

Time to study dropout (to assess feasibility and tolerability of the protocol)

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Retention in the Study
28.2 Days
Standard Error 9.4
45.4 Days
Standard Error 13.4

PRIMARY outcome

Timeframe: Baseline to 18 days (continuous--assessed weekly)

Population: Those randomized with complete data on continuation of psychosocial treatment for methamphetamine use disorder. Missing data due to a collection form error led to no information after 18 days, and information was not entered for some participants at earlier visits.

Time to discontinuation of psychosocial treatment

Outcome measures

Outcome measures
Measure
DPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=4 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Retention in Psychosocial Treatment
NA Days until discontinuation
Median survival times were not estimable due to too few events
NA Days until discontinuation
Median survival times were not estimable due to too few events

SECONDARY outcome

Timeframe: Baseline, 4 weeks

Population: Participants with MRI data for both baseline and after 4 weeks of treatment.

Functional connectivity of the dorsolateral prefrontal cortex and anterior insula (mean of left and right side connectivity) measured with fMRI, as defined by the temporal correlation in the blood-oxygen-level-dependent signals of the regions. Higher correlations indicate stronger functional connectivity.

Outcome measures

Outcome measures
Measure
DPFC First
n=2 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=4 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Functional Connectivity of the Dorsolateral Prefrontal Cortex and Anterior Insula
Temporal correlation between regions at baseline
-0.0437533 Pearson correlation (r)
Standard Deviation 0.0404869
0.000470725 Pearson correlation (r)
Standard Deviation 0.1561368
Functional Connectivity of the Dorsolateral Prefrontal Cortex and Anterior Insula
Temporal correlation between regions after 4-week intervention
0.0844848 Pearson correlation (r)
Standard Deviation 0.0315233
0.0129312 Pearson correlation (r)
Standard Deviation 0.0308713

SECONDARY outcome

Timeframe: Baseline, 4 weeks

Population: Participants with MRI data for both baseline and after 4 weeks of treatment.

Functional connectivity of the left dorsolateral prefrontal cortex and left dorsal anterior cingulate cortex measured with fMRI, as defined by the temporal correlation in the blood-oxygen-level-dependent signals of the regions. Higher correlations indicate stronger functional connectivity.

Outcome measures

Outcome measures
Measure
DPFC First
n=2 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=4 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Functional Connectivity Dorsolateral Prefrontal Cortex and Anterior Cingulate Cortex
Correlation between regions at baseline
-0.0563551 Pearson correlation (r)
Standard Deviation 0.0759435
0.0542240 Pearson correlation (r)
Standard Deviation 0.0749761
Functional Connectivity Dorsolateral Prefrontal Cortex and Anterior Cingulate Cortex
Correlation between regions after 4-week intervention
-0.2974375 Pearson correlation (r)
Standard Deviation 0.2386470
0.0960170 Pearson correlation (r)
Standard Deviation 0.1248435

SECONDARY outcome

Timeframe: Baseline, 4 weeks

Population: Participants with MRI data for both baseline and after 4 weeks of treatment.

Functional connectivity of the left medial prefrontal cortex and ventral striatum (mean of medial prefrontal cortex connectivity to left and right nucleus accumbens) measured with fMRI, as defined by the temporal correlation in the blood-oxygen-level-dependent signals of the regions. Higher correlations indicate stronger functional connectivity.

Outcome measures

Outcome measures
Measure
DPFC First
n=2 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=4 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Functional Connectivity of the Medial Prefrontal Cortex and Ventral Striatum (Nucleus Accumbens)
Correlation between regions at baseline
0.1795790 Pearson correlation (r)
Standard Deviation 0.0957911
0.0383048 Pearson correlation (r)
Standard Deviation 0.1329478
Functional Connectivity of the Medial Prefrontal Cortex and Ventral Striatum (Nucleus Accumbens)
Correlation between regions after 4-week intervention
-0.0576222 Pearson correlation (r)
Standard Deviation 0.1671134
0.0474714 Pearson correlation (r)
Standard Deviation 0.1695334

SECONDARY outcome

Timeframe: Baseline, 4 weeks

Population: Those who had a flanker test at baseline and at 4 weeks (stayed in the study through all TMS treatments).

Summary score of accuracy and reaction time. Higher scores indicate stronger inhibitory control and attention (better ability to attend to relevant stimuli and block out irrelevant stimuli). The reported scores are age-corrected standard scores, which have a population mean of 100 and standard deviation of 15. Means are estimated from mixed models.

Outcome measures

Outcome measures
Measure
DPFC First
n=2 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=3 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Flanker Inhibitor Control and Attention Test, Age 12+
Baseline
115 age-corrected standard score
Standard Error 6
97 age-corrected standard score
Standard Error 5
Flanker Inhibitor Control and Attention Test, Age 12+
4 weeks
106 age-corrected standard score
Standard Error 6
93 age-corrected standard score
Standard Error 5

SECONDARY outcome

Timeframe: Baseline, 4 weeks

Population: Those with a measure at baseline and 4 weeks.

Summary score of discounting rate. Scores range from 0.00016 to 0.5, with smaller values indicating a lack of discounting and preference for delayed rewards, and higher values indicating strong discounting and preference for immediate rewards. Higher scores are associated with addictive behaviors. The log of K is reported due to its skewed nature. Values are estimated from a mixed model.

Outcome measures

Outcome measures
Measure
DPFC First
n=2 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=3 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Kirby Delay Discounting Questionnaire, 27 Item
Baseline
-2.9817 Log of overall K
Standard Error 1.1013
-3.8350 Log of overall K
Standard Error 0.8992
Kirby Delay Discounting Questionnaire, 27 Item
4 weeks
-2.7660 Log of overall K
Standard Error 1.1013
-3.9792 Log of overall K
Standard Error 0.8992

SECONDARY outcome

Timeframe: Baseline, 1 week, 2 weeks, 3 weeks, 4 weeks, 8 weeks, 12 weeks

Population: All participants who were randomized/received at least one treatment

Estimated change per day in number of days of stimulant use in the last week (self-reported) from mixed models. Measured as number of days of methamphetamine use because methamphetamine and other stimulant use were reported separately, and it was not clear if these were on the same or different days. The vast majority of subjects reported using only methamphetamine.

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Number of Days of Stimulant Use in the Past Week (Estimated Change Per Day)
-0.1026 Days of use in last week-change per day
Standard Error 0.04322
-0.09523 Days of use in last week-change per day
Standard Error 0.04523

SECONDARY outcome

Timeframe: Baseline, 1 week, 2 weeks, 3 weeks, 4 weeks

Population: All participants who were randomized/received at least one treatment.

Urine dipstick positive or not for stimulants (amphetamine, methamphetamine, cocaine)

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Urine Drug Screen Positive for Stimulant
0.8892 odds ratio for positive per day in study
Interval 0.7687 to 1.0286
0.9921 odds ratio for positive per day in study
Interval 0.977 to 1.0074

SECONDARY outcome

Timeframe: 12 weeks

Population: Those randomized (who received at least one treatment).

The Brief Substance Craving Scale Score used was the summary score of intensity, frequency and length of cravings in the last 24 hours. Scores based on stimulant craving responses and range from 0-12 with higher scores indicating more craving. Scores are least squared means from mixed models of actual measures, without last observation carried forward or any imputation. Change in score per day estimated from a mixed model.

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Brief Substance Craving Scale (Estimated Change in Score Per Day)
-0.04980 Estimated change in score per day
Standard Error 0.02369
-0.02411 Estimated change in score per day
Standard Error 0.01781

SECONDARY outcome

Timeframe: Baseline, 4 weeks, 8 weeks, 12 weeks

Population: Those who were randomized and received at least one treatment

Use subscale. Scores range from 0 to 12 with higher scores indicating more use. Outcome measures reported as change per day estimated from mixed models.

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Brief Addiction Monitor Use Subscale (Estimated Change in Score Per Day)
-0.05848 Estimated change in scores per day
Standard Error 0.01532
-0.04089 Estimated change in scores per day
Standard Error 0.01204

SECONDARY outcome

Timeframe: Baseline, 4 weeks, 8 weeks, 12 weeks

Population: Those who were randomized/received at least one treatment

Risk factors subscale. Scores range from 0 to 24 with higher scores indicating more risk. Results presented as change in score per day estimated from a mixed model.

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Brief Addiction Monitor Risk Factors Subscale (Estimated Change in Score Per Day)
-0.1235 Estimated change in score per day
Standard Error 0.04053
-0.1066 Estimated change in score per day
Standard Error 0.03568

SECONDARY outcome

Timeframe: Baseline, 4 weeks, 8 weeks, 12 weeks

Population: Those randomized/received at least one treatment with complete BAM protective factors data at one or more time points

Protective factors subscale. Scores range from 0 to 24 with higher scores indicating more protection. Change in score per day estimated from mixed model.

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=4 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Brief Addiction Monitor Protective Factors Subscale (Estimated Change in Score Per Day)
-0.00530 Estimated change in score per day
Standard Error 0.03623
0.03826 Estimated change in score per day
Standard Error 0.03155

SECONDARY outcome

Timeframe: Baseline, 4 weeks, 8 weeks, 12 weeks

Population: Those who were randomized/received at least one treatment and had a baseline score for question 17 on the Brief Addiction Monitor.

Item 17, satisfaction with progress toward achieving recovery goals. Scores range from 0 to 4 with higher scores indicating less satisfaction. Reported as change per day estimated from a mixed model.

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Brief Addiction Monitor Satisfaction With Progress Toward Achieving Recovery Goals (Estimated Change Per Day)
-0.01378 Estimated change in score per day
Standard Error 0.01300
-0.00833 Estimated change in score per day
Standard Error 0.01003

SECONDARY outcome

Timeframe: Baseline, 2 weeks, 4 weeks, 8 weeks, 12 weeks

Population: All those who were randomized/received at least one treatment and had complete baseline data for QLES.

Total score. Scores range from 16 to 80 with higher scores indicating more satisfaction. Scores generally reported as a percent of the maximum possible score, such that scores can be calculated with missing responses as long as less than one-third of responses are missing. This outcome measure is reported as change in score per day estimated from mixed models.

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form (Estimated Change in Score Per Day)
0.003497 Estimated change in score per day
Standard Error 0.09139
0.2160 Estimated change in score per day
Standard Error 0.07123

SECONDARY outcome

Timeframe: Baseline, 2 weeks, 4 weeks, 8 weeks, 12 weeks

Population: All who were randomized/received at least one treatment

Total score. Scores range from 0 to 24 with higher scores indicating worse depressive symptoms. This outcome measure is reported as change in score per day estimated from mixed models.

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Patient Health Questionnaire--8 Item Scale (Estimated Change in Score Per Day)
-0.08549 Estimated change in score per day
Standard Error 0.05749
-0.1328 Estimated change in score per day
Standard Error 0.0098

SECONDARY outcome

Timeframe: Baseline, 2 weeks, 4 weeks, 8 weeks, 12 weeks

Population: All participants who were randomized/received at least one treatment

Total score. Scores range from 0 to 21 with higher scores indicating worse anxiety. This outcome measure is reported as change in score per day estimated from mixed models.

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Generalized Anxiety Disorder 7-item Scale (Estimated Change Per Day)
-0.05545 Estimated change in score per day
Standard Error 0.05014
-0.05776 Estimated change in score per day
Standard Error 0.03911

SECONDARY outcome

Timeframe: Baseline, 4 weeks, 8 weeks, 12 weeks

Population: All participants who were randomized/received at least one treatment.

Total score. Scores range from 0 to 50 with higher scores indicating greater recovery capital. This outcome measure is reported as change in score per day estimated from mixed models.

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Assessment of Recovery Capital (Estimated Change Per Day)
0.09980 Estimated change in score per day
Standard Error 0.09175
0.2266 Estimated change in score per day
Standard Error 0.06983

SECONDARY outcome

Timeframe: Baseline, 2 weeks, 4 weeks, 8 weeks, 12 weeks

Population: All participants who were randomized/received at least one treatment

Positive affect score. Scores range from 10 to 50 with higher scores indicating higher positive affect. Higher positive affect is a better outcome. This outcome measure is reported as change in score per day estimated from mixed models.

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Positive and Negative Affect Scale Positive Affect Score (Estimated Change Per Day)
-0.04983 Estimated change in score per day
Standard Error 0.06358
0.1111 Estimated change in score per day
Standard Error 0.04856

SECONDARY outcome

Timeframe: Baseline, 2 weeks, 4 weeks, 8 weeks, 12 weeks

Population: All participants randomized/received at least one treatment who had complete PANAS negative affect data at baseline

Negative affect score. Scores range from 10 to 50 with lower scores indicating lower negative affect. Lower negative affect is a better outcome. This outcome measure is reported as change in score per day estimated from mixed models.

Outcome measures

Outcome measures
Measure
DPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Positive and Negative Affect Scale Negative Affect Score (Estimated Change Per Day)
-0.08496 Estimated change in score per day
Standard Error 0.06962
-0.07669 Estimated change in score per day
Standard Error 0.05177

SECONDARY outcome

Timeframe: Baseline, 2 weeks, 4 weeks, 8 weeks, 12 weeks

Population: All who were randomized/received at least one treatment

Total score. Scores range from 0 to 21, with lower scores indicating better sleep quality. This outcome measure is reported as change in score per day estimated from mixed models.

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Pittsburgh Sleep Quality Index (Estimated Change Per Day)
-0.08000 Estimated change in score per day
Standard Error 0.02111
-0.07924 Estimated change in score per day
Standard Error 0.01649

SECONDARY outcome

Timeframe: Baseline, 4 weeks

Population: All participants who were randomized/received at least one treatment

Total score. Scores range from 18 to 90 with higher values indicating more difficulty with emotional regulation. This outcome measure is reported as change in score per day estimated from mixed models.

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Difficulties in Emotion Regulation Scale--Short Form (Estimated Change Per Day)
-0.1035 Estimated change in score per day
Standard Error 0.02083
-0.1010 Estimated change in score per day
Standard Error 0.01416

SECONDARY outcome

Timeframe: Baseline, 4 weeks

Population: All participants who were randomized/received at least one treatment

Summary score. Scores range from 59 to 236 with higher scores indicating more impulsive behavior. This outcome measure is reported as change in score per day estimated from mixed models.

Outcome measures

Outcome measures
Measure
DPFC First
n=6 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 Participants
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
UPPS-P Impulsive Behavior Scale, 59-item Revised Version (Estimated Change Per Day)
0.06023 Estimated change in score per day
Standard Error 0.8642
-0.2392 Estimated change in score per day
Standard Error 0.2670

Adverse Events

DPFC First

Serious events: 1 serious events
Other events: 4 other events
Deaths: 0 deaths

MPFC First

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
DPFC First
n=6 participants at risk
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 participants at risk
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Psychiatric disorders
Suicidal ideation
16.7%
1/6 • Number of events 1 • 4 weeks, while engaged in TMS treatment.
The only serious adverse event did not arise during a treatment session. It could not be specifically attributed to DPFC stimulation versus MPFC stimulation since participants received both at each treatment session, with groups only differentiated by the order in which they received stimulation within each treatment session.
0.00%
0/5 • 4 weeks, while engaged in TMS treatment.
The only serious adverse event did not arise during a treatment session. It could not be specifically attributed to DPFC stimulation versus MPFC stimulation since participants received both at each treatment session, with groups only differentiated by the order in which they received stimulation within each treatment session.

Other adverse events

Other adverse events
Measure
DPFC First
n=6 participants at risk
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the dorsolateral prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
MPFC First
n=5 participants at risk
Participants in this arm will undergo all study procedures including consent; pre-, during, and post-psychological assessments; pre- and post- MRI and fMRI; 16 treatments of dual target TMS over a 4-week period; and substance use-related assessments to include substance use, withdrawal symptoms, and cravings to use. This arm will receive the medial prefrontal cortex stimulation first. Transcranial Magnetic Stimulation: Participants will undergo 16 treatments consisting of intermittent theta burst stimulation targeting the dorsolateral prefrontal cortex and continuous theta burst stimulation targeting the medial prefrontal cortex, over a 4-week period that coincides with psychosocial treatment for methamphetamine use disorder.
Nervous system disorders
Headache (mild)
33.3%
2/6 • Number of events 6 • 4 weeks, while engaged in TMS treatment.
The only serious adverse event did not arise during a treatment session. It could not be specifically attributed to DPFC stimulation versus MPFC stimulation since participants received both at each treatment session, with groups only differentiated by the order in which they received stimulation within each treatment session.
0.00%
0/5 • 4 weeks, while engaged in TMS treatment.
The only serious adverse event did not arise during a treatment session. It could not be specifically attributed to DPFC stimulation versus MPFC stimulation since participants received both at each treatment session, with groups only differentiated by the order in which they received stimulation within each treatment session.
Nervous system disorders
Pain
33.3%
2/6 • Number of events 2 • 4 weeks, while engaged in TMS treatment.
The only serious adverse event did not arise during a treatment session. It could not be specifically attributed to DPFC stimulation versus MPFC stimulation since participants received both at each treatment session, with groups only differentiated by the order in which they received stimulation within each treatment session.
0.00%
0/5 • 4 weeks, while engaged in TMS treatment.
The only serious adverse event did not arise during a treatment session. It could not be specifically attributed to DPFC stimulation versus MPFC stimulation since participants received both at each treatment session, with groups only differentiated by the order in which they received stimulation within each treatment session.
Nervous system disorders
Lightheadedness
0.00%
0/6 • 4 weeks, while engaged in TMS treatment.
The only serious adverse event did not arise during a treatment session. It could not be specifically attributed to DPFC stimulation versus MPFC stimulation since participants received both at each treatment session, with groups only differentiated by the order in which they received stimulation within each treatment session.
20.0%
1/5 • Number of events 1 • 4 weeks, while engaged in TMS treatment.
The only serious adverse event did not arise during a treatment session. It could not be specifically attributed to DPFC stimulation versus MPFC stimulation since participants received both at each treatment session, with groups only differentiated by the order in which they received stimulation within each treatment session.

Additional Information

Dr. Ryan Carnahan

The University of Iowa College of Public Health

Phone: 3193841556

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place