Evaluation of the Efficacy of the Individually Adjusted Therapy Scale (ATI) on the Addiction Severity

Inclusion criteria: * 18 years old or older * Meet DSM-5 substance use disorder diagnosis for at least one substance (alcohol, tobacco, cannabis, opiates, cocaine or any other substance) use disorder or behavioral addiction (gambling, screens, video games, food addiction, sex addiction, compulsive purchases), currently not stabilized * Seek treatment for this a substance use disorder or behavioral addiction * Beginning (or re-initiating) multi-month outpatient care for this disorder in one of the inclusion centres. * Ability to identify a priority substance/behavior, as main object of treatment, in case of simultaneous treatment on several addictions * Beneficiary of the French Social Security system * Give an informed consent to participate o Exclusion criteria: * Severe physical or psychiatric or addictologic condition that prevents an outpatient treatment * Severe physical or psychiatric condition that prevents to complete the assessment * Addictive disorder that requires several treatment for several substance use disorder simultaneously * Difficulty to understand and to write French * Could not be reachable by phone * Participate to another study that prevents to participate to another research * Prisoner * Person under law protection * Person under legal guardianship