The purpose of this study is to develop and then test an enhanced version of the parent study's collaborative care intervention for co-occurring disorders (CC-COD) to reduce the risk of suicide and overdose among individuals with opioid use disorder (OUD) in combination with PTSD/depression. The parent study is CLARO, Collaboration Leading to Addiction Treatment and Recovery from Other Stresses (NCT04559893).

People with OUD co-occurring with depression or PTSD (COD) may not seek out treatment for their substance use or mental health issues, but they do visit their primary care provider. However, because providers generally lack specialized training in substance use and mental illness and are focused on the immediate reason for the visit, patients' substance use and mental disorders often go unrecognized and untreated. This missed opportunity can have lethal consequences. Individuals with COD are at higher risk of dying from suicide or overdose than individuals with mental illness or OUD alone. The parent study (NCT04559893) will provide a definitive answer as to whether collaborative care (CC) improves access, quality, and outcomes of care for individuals with COD. While a primary goal is to improve access to and retention in medication treatment for OUD (MOUD) (which is linked to decreased mortality and overdose risk), the interventions CC-COD supports do not proactively address suicide or overdose risk, an important limitation. In addition, CC-COD does not include families in the patient's care. The investigators address these limitations and tackle the public health crisis of increasing deaths from suicide and overdose with this study. Because family members can play an important role in a patient's decision to engage with treatment and in overdose and suicide prevention, the study team investigates family members' views and use this information to strengthen CC-COD. This revision will develop and then test the incremental effectiveness of three additional CC-COD components. Care coordinators will (1) educate family members about MOUD with the goal of increasing patient retention in treatment; (2) train family members and the patient to administer naloxone and on how to reduce overdose risk behaviors; and (3) implement Caring Contacts, a suicide prevention intervention that sends compassionate mailed or text messages to individuals to decrease social isolation and reduce suicide risk.

Inclusion Criteria:

• 18 and older
• Receiving primary care at one of the participating clinical sites
• Has OUD and one or more specific co-occurring behavioral health disorders (depression and PTSD)

Exclusion Criteria:

• Under 18
• Does not speak English or Spanish
• Unable to consent
• Receiving both MOUD and psychotropic medication from a provider outside of the primary care health system at which the patient is enrolled.
• Not receiving primary care at one of the participating clinical sites

Per National Institute of Mental Health (NIMH) funding requirements, study data must be uploaded to the NIMH National Data Archive (NDA) every six months once data collection begins. A universal subject identification, Global Unique Identifier, (GUID) will be generated for each participant. All raw data will be uploaded every six months to the NIMH NDA per their policies. Additionally, all analysis data sets used for manuscripts must be uploaded to the NIMH NDA, identified by GUID.

Every 6 months (January and July) following enrollment of the first patient. First submission expected July 2021. Submission will cease following sharing of final analysis data set for any specified outcomes publications.

Per NIMH NDA policies