This research will expand upon Seek-Test-Treat-Retain (STTR) strategies based on HIV testing and treatment of individuals with established HIV infection. The overall objective is to improve the efficacy of STTR strategies by specifically intervening to reduce the impact of HIV transmission risk behaviors among individuals with acute (AHI), recent (RHI) and established HIV infection, especially those with substance use disorders (including alcohol). This research will be conducted in Lima, Peru where substance misuse contributes greatly to HIV transmission among MSM. Novel within this proposal is the investigation of the impact on community- wide HIV transmission of intervening with individuals at various stages of HIV infection (and therefore infectivity) with antiretroviral (ART) and evidence-based treatments for alcohol use disorders (AUDs). We intend to provide best-practices for community mobilization and partner services to increase the number of at-risk MSM tested (seek);expansion of testing algorithms to detect AHI, RHI and established infection (test);linkage to care and timely ART (treat);and promotion of continued HIV care and treatment (retain). Widespread HIV testing will use 4th generation EIA assays and pooled NAAT testing to detect AHI.
Specific Aim 1 will investigate the population-level impact of drug and alcohol use on HIV transmission by examining the role of MSM who report substance use (mostly alcohol and cocaine) in transmission clusters identified through partner tracing and phylogenetic analysis. This analysis will also include modeling of the contribution of men with AHI or RHI vs. established HIV infection to transmission among networked populations, such as MSM. HIV viral load (VL) in semen will be measured over a 6 month period in MSM with AHI and RHI who will be randomized to immediate or delayed ART. These data as well as plasma VL will be used to estimate the effect of ART on infectivity and the potential impact of non-adherence during this period. Modeling of the population effect of a combination intervention to reduce onward transmission associated with substance abuse in men with AHI or established infection will include the following data: drug and alcohol use;frequency of detection of AHI and successful linkage to care and treatment;sexual network analysis including impact of substance use;effect of ART on genital tract VL;retention of individuals, including those with AHI, in care;medication adherence;as well as other intervention process data.
Specific Aim 2 will focus on alcohol, the """"""""drug of choice"""""""" among MSM in Lima. Using a placebo-controlled trial, we will test the efficacy of extended release naltrexone (NTX-XR) in improving HIV and alcohol treatment outcomes, including HIV risk behaviors, associated with alcohol use among MSM with AUDs at all stages (acute, recent and established) of HIV infection.
Aim 2 data will also be used to model the potential additional benefit on a population level of including substance-use interventions to reduce unsafe sex and improve ART adherence in STTR interventions.

Public Health Relevance

This study will assess the feasibility and potential impact of incorporating interventions to reduce high rates of onward transmission associated with acute HIV infection (AHI) and unsafe sex practices and poor medication adherence due to alcohol use. These results will inform community-based seek-test-treat-retain (STTR) interventions and HIV/AIDS program development.

Agency
National Institute of Health (NIH)
Institute
National Institute on Drug Abuse (NIDA)
Type
Research Project (R01)
Project #
3R01DA032106-03S2
Application #
8831897
Study Section
Special Emphasis Panel ()
Program Officer
Aklin, Will
Project Start
2011-07-15
Project End
2016-04-30
Budget Start
2014-04-01
Budget End
2014-04-30
Support Year
3
Fiscal Year
2014
Total Cost
$9,166
Indirect Cost
$365
Name
Fred Hutchinson Cancer Research Center
Department
Type
DUNS #
078200995
City
Seattle
State
WA
Country
United States
Zip Code
98109
Rinehart, Rachel; Rao, Deep; Amico, Rivet K et al. (2018) Experienced HIV-Related Stigma and Psychological Distress in Peruvian Sexual and Gender Minorities: A Longitudinal Study to Explore Mediating Roles of Internalized HIV-Related Stigma and Coping Styles. AIDS Behav :
Lama, Javier R; Brezak, Audrey; Dobbins, James G et al. (2018) Design Strategy of the Sabes Study: Diagnosis and Treatment of Early HIV Infection Among Men Who Have Sex With Men and Transgender Women in Lima, Peru, 2013-2017. Am J Epidemiol :
Vagenas, Panagiotis; Brown, Shan-Estelle; Clark, Jesse L et al. (2017) A Qualitative Assessment of Alcohol Consumption and Sexual Risk Behaviors Among Men Who Have Sex With Men and Transgender Women in Peru. Subst Use Misuse 52:831-839
Wandell, Grace M; Molina, Yamile; Sánchez, Hugo et al. (2017) Knowledge and preferences concerning acute HIV testing programs among both Peruvian men who have sex with men and transgender women. Int J STD AIDS 28:1010-1017
Chandler, Redonna; Gordon, Michael S; Kruszka, Bridget et al. (2017) Cohort profile: seek, test, treat and retain United States criminal justice cohort. Subst Abuse Treat Prev Policy 12:24
Brown, Shan-Estelle; Vagenas, Panagiotis; Konda, Kelika A et al. (2017) Men Who Have Sex With Men in Peru: Acceptability of Medication-Assisted Therapy for Treating Alcohol Use Disorders. Am J Mens Health 11:1269-1278
Nance, Robin M; Delaney, J A Chris; Golin, Carol E et al. (2017) Co-calibration of two self-reported measures of adherence to antiretroviral therapy. AIDS Care 29:464-468
Bazazi, Alexander R; Crawford, Forrest; Zelenev, Alexei et al. (2015) HIV Prevalence Among People Who Inject Drugs in Greater Kuala Lumpur Recruited Using Respondent-Driven Sampling. AIDS Behav 19:2347-57
Vagenas, Panagiotis; Azar, Marwan M; Copenhaver, Michael M et al. (2015) The Impact of Alcohol Use and Related Disorders on the HIV Continuum of Care: a Systematic Review : Alcohol and the HIV Continuum of Care. Curr HIV/AIDS Rep 12:421-36
Bazazi, Alexander R; Zelenev, Alexei; Fu, Jeannia J et al. (2015) High prevalence of non-fatal overdose among people who inject drugs in Malaysia: Correlates of overdose and implications for overdose prevention from a cross-sectional study. Int J Drug Policy 26:675-81

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