Antiretroviral treatment prevents HIV transmission in gay men

published on May 3, 2019 by University of Liverpool, in Medical Xpress

Scientists at the University of Liverpool have contributed to research findings that show effective antiretroviral treatment prevents sexual transmission of HIV in gay men.

The final results of the PARTNER study are published in the leading medical journal The Lancet. The study reports zero HIV transmissions over eight years in gay men not using condoms, finally confirming that an undetectable viral load on HIV treatment renders an individual sexually non-infectious.

Almost 1,000 gay male couples contributed to the PARTNER2 study. One partner was HIV negative and the other was HIV positive and on effective HIV treatment with viral load less than 200 copies/mL.

With up to eight years follow up and approximately 77,000 times that couples had sex without using condoms, the PARTNER2 study reported that there were no HIV transmissions within the couples in the study. The results showed that ART is just as effective for gay couples as an earlier phase of the study proved it was for heterosexual couples. This is important because without a positive partner being on treatment, anal sex is at higher risk for HIV transmission compared to vaginal sex.

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© Copyright BC Centre for Excellence in HIV/AIDS
St. Paul's Hospital 608–1081 Burrard Street, Vancouver, BC, Canada V6Z 1Y6
Tel: 604-806-8477 | Fax: 604-806-9044
General inquiries: info@bccfe.ca
Media inquiries: communications@bccfe.ca
(Please do not use any of these email addresses to send personal information or book an appointment. To book appointments or contact the H2H clinic, please call 604-416-1517 or fax: 604-564-4893. Do not send your or your client's personal information via email.)

Our work serves clients and communities across British Columbia on lands and waters cared for and nurtured by the many distinct First Nations across the province. The BC-CfE humbly and gratefully acknowledge the stewards of these lands, particularly the xʷməθkʷəy̓əm (Musqueam), Sḵwx̱wú7mesh (Squamish), and səl̓ílwətaʔ (Tsleil-Waututh) on whose unceded, traditional and ancestral territories our offices are located.