Study of Recently HIV Infected Men and Transmission Behaviors (MetroMates)
Specific Aim 1: Identify drug use patterns and partnership dynamics that mediate risk behaviors over time in a cohort of recently HIV infected men and their partners.
Specific Aim 2: Determine predictors of transmission risk within partnerships of recently HIV infected men and their partners, using the partnership as the unit of analysis.
Specific Aim 3: Quantify the long-term population-level impacts of voluntary behavior change by men with recent HIV infection, through the use of dynamic mathematical modeling that integrates our data on behavior change with current estimates of temporal infectiousness patterns. The investigators will also determine whether more frequent testing and/or development of tests with earlier sensitivity may have a significant impact on the epidemic. Finally, the magnitude of this effect to that obtained by decreasing drug use or risky sexual behavior prior to or following seroconversion will be compared. This will be conducted as a statistical analysis by co-investigators at the University of Washington.
|Study Design:||Observational Model: Cohort
Time Perspective: Prospective
|Official Title:||Transmission Behavior in Partnerships of Newly HIV Infected Southern Californians|
- To measure how transmission risks and partnership dynamics change over time among recently HIV-infected individuals and their partners [ Time Frame: 12 months ] [ Designated as safety issue: No ]This study will compare behavioral patterns of recently HIV infected individuals with those with chronic HIV infection and no HIV infection. It will allow for partnership level analyses by actively recruiting sexual partners.
Biospecimen Retention: Samples With DNA
We collect a sample of blood/plasma and have a repository (blood) and for future analysis. After noting that subject has consented to main study as well as consenting to have his blood stored for later research purposes, appropriate research staff will direct the phlebotomist to draw and additional tube of blood (approximately 7mls of blood) into a purple cap (EDTA) tube. After processing, each sample will be securely stored at the participating site under appropriate conditions .
|Study Start Date:||February 2009|
|Estimated Study Completion Date:||August 2013|
|Estimated Primary Completion Date:||August 2013 (Final data collection date for primary outcome measure)|
People who recently became infected with HIV often have a high level of the virus and may be highly infectious. If they have sex (especially anal intercourse) without condoms soon after they have been infected with HIV, there is a great chance that they may transmit the virus to others. When they learn of their HIV infection, some but not all men change sexual behaviors so as not to infect their partner(s) with HIV. Possible reasons for such behavior change include increase or decrease in drug use and what is going on within their sexual partnerships. A study that tracks men with recent HIV infection and their partners over time can provide information key to stopping further spread of HIV given that sexual behaviors can vary over time, especially during this most infectious period.
This study will look at how likely it is for HIV infection to be spread among partner types over time by recently HIV-infected men and their partners. The study will compare behaviors of recently HIV infected men to those with long-term HIV infection and no HIV infection. It will allow a study of sexual partnerships by actively recruiting sexual partners. We will also focus on the role of drug use, especially methamphetamine and how it changes behaviors over time. We will especially look at how different sex partners affects one's drug use and increases or decreases HIV transmission. The study will enroll 150 recently HIV-infected men who have sex with men and follow them for a year. In addition, up to 6 sexual partners of each recently HIV infected individual will be recruited and followed for a year. Some sexual partners will be HIV negative and some HIV positive. We will use their HIV status to compare behaviors over time in the group and between partners of the same status and partners of a different status. The results will be used in special formulas that will allow for a better understanding of behavior change by men with recent HIV infection. This new information will be key for designing new ways to target risk reduction for recently HIV-infected men.
|Contact: Leonardo Colemon, MAemail@example.com|
|United States, California|
|Los Angeles Gay and Lesbian Center||Recruiting|
|Los Angeles, California, United States, 90028|
|Contact: Leonardo Colemon, MA 310-825-6094 firstname.lastname@example.org|
|Contact: Ray Mercado, BA 3239937502|
|Principal Investigator: Robert Bolan, MD|
|Principal Investigator:||Pamina M. Gorbach, DrPh||UCLA/EPI|
|Study Director:||Leonardo Colemon, MA||UCLA/EPI|