Center for Addiction Medicine

Conall O’Cleirigh, PhD

Conall O'Cleirigh Headshot

Assistant Professor, Harvard Medical School. Director, Behavioral Medicine, Department of Psychiatry, Massachusetts General Hospital. Associate Director, Behavioral and Social Science Core, Harvard University Center for AIDS Research. Associate Director, Global Psychiatry Training Fellowship

Contact:     (617) 643-0385


Dr. O’Cleirigh’s principal research interest is in adapting cognitive behavioral techniques for psychiatric and substance use disorders, with an emphasis on HIV prevention and treatment, supported by grants from NIDA, NIMH, NICHD and NIAID. In the past seven years he has mentored 17 pre- and post-doctoral fellows, three of whom he continues to mentor as post-doctoral fellows, and eight of whom are now faculty members at Harvard Medical School or hold Assistant Professor Faculty positions in Psychology Departments or Research Medical Centers through the country. He collaborates with Dr. Evins in mentoring a K23 awardee (Dr. Magdison) who is studying the effectiveness of a community health worker intervention in HIV treatment compliance and in provision of evidence based smoking cessation treatment to smokers with serious mental illness.


Current Projects

Fostering resilience to psychosocial and HIV risk in Indian MSM

NIMH 1R01MH100627 2014-19 (PIs O’Cleirigh, Safren, Mimiaga)

This proposal seeks to test the efficacy of a self-acceptance-based intervention in comparison to HIV / VCT among HIV-infected and uninfected MSM in Chennai and Mumbai India, and to examine the extent to which reductions in HIV sexual risk behavior are mediated by increased self-acceptance/ self-esteem, and decreased distress.


Nurse-Delivered CBT for depression-adherence in HIV primary care South Africa

NIMH R01MH103770 2015-20 (PIs O’Cleirigh, Safren)

This project is an effectiveness trial of cognitive behavioral therapy for ART adherence and depression, to be delivered by nurse interventionists in Cape Town South Africa, to patients living with HIV and depression who have failed first line treatment.

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