Testing an Accelerated TMS Protocol for Methamphetamine Use Disorder

Eligibility Criteria

• 1. Age 21-65 years inclusive;
• 2. Meets DSM-5 criteria for past-year moderate or severe methamphetamine use disorder;
• 3. By Timeline Follow Back endorses at least 10 days of methamphetamine use out of the last month;
• 4. Provides a urine drug screen positive for methamphetamine;
• 5. Able to provide informed consent;
• 6. No change in current psychiatric medication regimen, or medication free, for at least 4 weeks prior to study entry;
• 7. Adequate English proficiency for study consent, and completion of the study instruments.
• 1. Lifetime non-substance-induced psychotic disorders, schizophrenia, schizoaffective disorder or bipolar disorder defined by DSM-5;
• 2. Current diagnosis of DSM-5 drug use disorder other than stimulant, cannabis or nicotine use disorder;
• 3. Non-substance-induced manic episode within the past 3 years or major depressive episode in the past year;
• 4. Current clinically significant neurological disorder or medical illness, including history of seizures, cardiovascular disease/cardiac event, which in the opinion of the study physician would make study participation unsafe;
• 5. Presence of a clinically significant abnormality on baseline MRI;
• 6. Inability to have an MRI;
• 7. Currently breastfeeding, is currently pregnant 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);
• 8. Active criminal justice involvement (i.e., any unresolved legal problems that could jeopardize continuation or completion of the study);
• 9. History of head injury with loss of consciousness for more than 15 minutes;
• 10. Diagnosis of dementia;
• 11. Prescribed benzodiazepines or anticonvulsants;
• 12. Currently enrolled in formal substance use disorder treatment;
• 13. Metal implants or non-removable metal objects above the waist;
• 14. Lifetime history of prior clinical treatment with TMS;
• 15. Serious risk of suicide or homicide;
• 16. Unable/unwilling to follow the study procedures;
• 17. History of intractable migraine;
• 18. Assessed to be at risk for alcohol or opioid withdrawal.