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Internal Medicine

The Limits of Collaborative Care: Why the CLARO Trial Found No Added Benefit for OUD and Comorbid Mental Illness

MedXY Editorial TeamJan 1, 2026
collaborative caredepressionopioid use disorderprimary care

Highlights

  • The CLARO trial found no significant difference between collaborative care and enhanced usual care (EUC) regarding time to buprenorphine initiation or cumulative days of medication for opioid use disorder (MOUD).
  • Mental health outcomes, measured by PHQ-9 (depression) and PCL-5 (PTSD) scores, improved in both the intervention and control groups, with no statistically significant advantage for the collaborative care arm.
  • The intervention utilized community health workers (CHWs) as care managers in low-resource primary care settings, highlighting the difficulties of managing high-acuity patients with multi-faceted biopsychosocial needs.
  • Spillover effects and spontaneous improvement within the control group may have narrowed the gap between the two study arms.

Introduction: The Intersection of Opioid Use Disorder and Mental Health

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This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication.

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