About The Study

This study will evaluate Gay Poz Sex (GPS), an HIV prevention program for men living with HIV who have sex with men. Participants eligible for the trial will be randomly assigned to join an eight-week GPS program starting within two weeks after recruitment, or to join a control group that will wait six months before having the option to attend the eight-week GPS program. The goal of GPS is to help gay and bisexual men identify how to promote their sexual health and a positive sense of sexuality. The researchers seek to show that the GPS program will result in reduced rates of unprotected anal intercourse. The goal of this study is also to provide information for the scale-up of the GPS program.

About The Disease

According to the study researchers, most HIV prevention interventions for men who have sex with men (MSM) are geared towards those who are not HIV positive. Working with MSM living with HIV could have a significant impact in reducing the spread of HIV. Unprotected anal intercourse (UAI) is the primary risk behavior the researchers are looking to change. The researchers cite a number of studies that show that many MSM operate under mistaken assumptions about their sexual partners’ HIV status. Risky sex is practiced despite a fairly well informed population and so they suggest that behaviour change interventions need to take on more than just a prescriptive role, allowing for more flexibility regarding personal goals for sexual health promotion.

Study Approach

Study researchers are looking to recruit 180 participants for this study. Those who agree to enrol and meet inclusion criteria will be scheduled for a single assessment session to complete a questionnaire and to discuss the study, and will then be assigned to either start GPS right away or wait six months to start.

GPS uses a counseling method called motivational interviewing and does not assume that information and behavioural skills are sufficient to make change. The counseling is administered by peers and helps participants find their own internal motivations to engage in behavioural change.

Participants selected to start the GPS program will complete eight two-hour GPS sessions. The specific steps of the GPS program include: eliciting from participant ideas about what behaviour each individual would like to change, enhancing confidence in being able to make the desired change, and to help the individual to make his desired change. GPS is designed in a small group format with six to eight men to help foster social interaction. Participants complete a questionnaire at the completion of the program and participate in follow-up assessments conducted three and six months after the program. An interview is also conducted during the six-month follow-up assessment session. The control group completes three and six month follow-up assessments during their waitlist period before starting the GPS program.

Eligibility Requirements


  • Identify as gay or bisexual
  • Men living with HIV who report condom-less anal intercourse in the past 2 months with a partner who is HIV negative or of unknown HIV status
  • Speak and understand English
  • Anticipate that they will be able to attend all workshops
  • Willing to participate in program monitoring and evaluation

Not Allowed

  • Central Nervous Systems (CNS) conditions (e.g., advanced HIV-associated dementia)
  • Acute psychotic or mood dysregulation (e.g., manic states)
  • Debilitating physical conditions

Additional Information

If you would like more information on this clinical study, please refer to a participating site or to the study website.

Principal Investigators

Here’s who is leading this study.

Can’t find what you’re looking for? Email ctninfo@hivnet.ubc.ca.

Dr. Trevor Hart

Co-Leader, Prevention Core; Member, Steering Committee

Ryerson University; University of Toronto

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Participating Sites

Here’s where this study is being conducted.