A Telephone-delievered Intervention to Reduce Methamphetamine Use

Exclusion Criteria

• •Currently receiving treatment for substance use disorder (e.g. medically supervised detoxification, residential rehabilitation, drug counselling, pharmacotherapy - this criterion applies only at trial enrolment, and does not preclude the participant from entering treatment/receiving usual care during the trial)
• •Requiring acute care for severe substance use disorder (DSM-5 diagnosis confirmed at baseline using the SCID-5-RV, with oversight from the Principal Investigator or Study Clinician)
• •Requiring acute care for active suicidality or unstable psychiatric condition
• •A diagnosed primary psychotic disorder (schizophrenia, schizoaffective disorder, bipolar disorder)
• •Pregnancy
• •Hearing impairment that would prohibit participation in telephone intervention / follow-up assessments