Cross-sectional study assessing the prevalence of co-addictions in subjects receiving opioid substitution treatment: determination of the clinical and pharmacological profile FRESH-PEF73282-en Marie GRALL-BRONNEC Cross-sectional study assessing the prevalence of co-addictions in subjects receiving opioid substitution treatment: determination of the clinical and pharmacological profile OPAL FRESH-PEF73282-en 73282 FRESH-PEF73282 Marie GRALL-BRONNEC CENTRE HOSPITALIER UNIVERSITAIRE DE NANTES Epidemiology France Portal (PEF) null Marie;GRALL-BRONNEC Opioid dependence opioid substitution treatment psychoactive substance pharmacokinetics pharmacogenetics polymorphism cytochrome P450 2D6 addictions pathological gambling Psychiatry Addiction medicine Mental, behavioural or neurodevelopmental disorders Behavioral determinants: Addiction Biological determinants: Genetic predisposition Behavioral determinants Biological determinants assess the current prevalence of addictive comorbidities in opioid-dependent subjects who have been receiving opioid substitution therapy (OST) for at least 6 months. null France Individuals Patients population Male Female Young Adult (19 to 24 years) Adult (25 to 44 years) Middle Aged (45 to 64 years) Aged (65 to 79 years) Adult Treatment with methadone or buprenorphine (+/- naloxone) or morphine as a substitute, prescribed for opioid dependence OST established for at least 6 months Incarceration of less than one month if monitored by a Regional Medical and Psychological Service (SMPR) in prison Good understanding of French, knowing how to read and write it. Clinical data Participant-reported health data Verification of data by a Clinical Study Technician and the consistency of data by the data cell when entering it into the computer database Health event/morbidity One-time cross-sectional study Other Through organizations (health services or institutions schools businesses etc.) < 500 individuals Interview with the participant (including clinical) Observational Study Observational Study 263 Completed study Restricted access Contact the principal investigator Access on specific project only