Non-invasive Brain Stimulation in Patients With Methamphetamine Use Disorder
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ClinicalTrials.gov Identifier: NCT05535101 |
Recruitment Status :
Not yet recruiting
First Posted : September 10, 2022
Last Update Posted : September 10, 2022
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Condition or disease | Intervention/treatment | Phase |
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Craving Depression, Anxiety Amphetamine Addiction | Device: Intermittent theta burst transcranial magnetic stimulation (iTBS) Device: Sham stimulation | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 60 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Single (Participant) |
Primary Purpose: | Treatment |
Official Title: | Exploration of Non-invasive Theta Burst Stimulation in Patients With Methamphetamine Use Disorder: Efficacy and Mechanism |
Estimated Study Start Date : | September 1, 2022 |
Estimated Primary Completion Date : | December 31, 2022 |
Estimated Study Completion Date : | December 31, 2023 |

Arm | Intervention/treatment |
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Experimental: theta burst stimulation
Those participants to receive 1-3 sessions in a single day at an interval of 15 minutes(at least), and 5 high-frequency iTBS sessions per week in total four weeks. Each session: 600-900 pulses with 120-100% resting motor threshold.
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Device: Intermittent theta burst transcranial magnetic stimulation (iTBS)
The amphetamine users will undergo a one-month iTBS intervention. From Week 1 to Week 4, subjects will be treated five times a week. |
Sham Comparator: Sham arm
Sham stimulation was delivered using the same protocol as active stimulation, but with the TMS coil rotated by 90 degrees with the edge of the coil touching the scalp.
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Device: Sham stimulation
Sham stimulation was delivered using the same protocol as active stimulation, but with the TMS coil rotated by 90 degrees with the edge of the coil touching the scalp. |
- Visual analogue scale (Taiwanese version) [ Time Frame: Baseline(Week 0, before intervention), Week 4(after iTBS program), Week 8, Week 16 ]Respondents will specify their level of craving from none to extreme on a 100 mm line (score: 0-10) in each questionnaires, and there are nine questionnaires related to craving.
- The Beck depression inventory (Taiwanese version BDI) [ Time Frame: Baseline(Week 0, before intervention), Week 4(after iTBS program), Week 8, Week 16 ]The Beck depression inventory (Taiwanese version BDI) will be applied to evaluate the depression during the period of methamphetamine abstinence. (Total score: 0-63)
- The Beck anxiety inventory (Taiwanese version BAI) [ Time Frame: Baseline(Week 0, before intervention), Week 4(after iTBS program), Week 8, Week 16 ]The Beck anxiety inventory (Taiwanese version BAI) will be applied to evaluate the anxiety during the period of methamphetamine abstinence. (Total score: 0-63)
- Cognitive function [ Time Frame: Baseline(Week 0, before intervention), Week 4(after iTBS program), Week 8, Week 16 ]Continuous performance test was developed by Rosvold and designed as a computerized test of cognitive function.The outputs include hit rates, correct percentages, and answer time for each item. Generally, higher correct percentage with shorter answer time mean better attention.
- Tolerance [ Time Frame: Post intervention everytime (8 times total) ]The respondents will specify five physical symptoms which might related to rTMS intervention (Yes/No: headache, local pain/discomfort, head/face pain/discomfort, seizure, hearing loss/ear ache)
- blood biomarkers [ Time Frame: Baseline(Week 0, before intervention), Week 4(after iTBS program), Week 8, Week 16 ]Three biomarker reflecting neuron inflammation or neuron damage will be measured using blood samples, including C-C Motif chemokine ligand 11, neurofilament light chain and exosomal RNA to explore the possible mechanism of iTBS.
- Electroencephalography [ Time Frame: Baseline(Week 0), Week 4 ]The EEG will be perform to collect the parameters across broad brain regions to transform into subsequent information of functional connectivity, including phase locking value (PLV) across all electrodes for delta, theta, alpha, and beta frequency bands.

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Ages Eligible for Study: | 20 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Age ranged 20-65.
- Diagnosis as amphetamine use disorder by clinical psychiatrist according to DSM-V
Exclusion Criteria:
- Major disorders other than substance use disorders in Diagnostic and Statistics Manual-5 (e.g. Schizophrenia, organic brain syndrome, and bipolar disorders).
- Epilepsy, head trauma, migraine, cardiovascular comorbidity, atypical parkinsonian disorder
- patients with heart pacemakers, implanted drug delivery aids, artificial electronic ears, implantable defibrillators, and/or implanted nerve stimulators, and near the implants mentioned above.
- patients with metal implants above the chest.
- people who have damaged skin in areas of the patient's body that receive stimulation.
- patients with multiple sclerosis.
- patients who have extensive ischemic scarring.
- pregnant women.
- patients with a family history of spasms/epilepsy
- patients taking medications that may lower the seizure threshold.
- patients with severe sleep disorders related to previous rTMS treatment.
- patients with severe heart disease
- patients with intracranial stress caused by uncontrollable migraines.
- people who have been evaluated by a physician as unfit to participate in clinical trials.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05535101
Contact: Cheng-Che Chen, MD, MSc | 0972654912 | hugocc@gmail.com |
Principal Investigator: | Cheng-Che Chen, MD, MSc | Physician, Department if Psychiatry, National Taiwan University Hospital Hsin-Chu branch |
Responsible Party: | National Taiwan University Hospital Hsin-Chu Branch |
ClinicalTrials.gov Identifier: | NCT05535101 |
Other Study ID Numbers: |
111-019-F |
First Posted: | September 10, 2022 Key Record Dates |
Last Update Posted: | September 10, 2022 |
Last Verified: | April 2022 |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Addiction amphetamine non-invasive theta burst stimulation |
Amphetamine-Related Disorders Behavior, Addictive Compulsive Behavior Impulsive Behavior |
Substance-Related Disorders Chemically-Induced Disorders Mental Disorders |