As a platform for HIV and substance use-related research, mSTUDY features sub studies that address scientific questions beyond the scope of our primary aims.  Below, please find a list of our approved and active concepts.  If you would like to propose a sub study, please contact [email protected] for more information.

Hilary Aralis
Chaotic Lifestyle Factors and Achievement of Viral Suppression among HIV-Positive Men in Los Angeles

Stephan Baral
Assessing the relationship between stigma and engagement in HIV prevention and treatment

Susie Cassels
Associations between migration, sexual risk behavior, and HIV testing behavior, and HIV care among mSTUDY participants

Jesse Clark
PAREDES: A Comprehensive Partner-Based Approach to HIV and STI Case-Detection for Latino MSM

Stephanie Clavijo
Beginning of chronic health conditions in young MSM of color in Los Angeles

Ryan Cook
BMI-SUB study: The Bodyweight, Microbiome, Inflammation, and SUBstance use study

Jennifer Fulcher
Recent methamphetamine use is associated with increased rectal mucosal inflammatory cytokines, regardless of HIV-1 serostatus

Pamina Gorbach
Behavior change following HIV diagnosis: findings from a Cohort of Los Angeles MSM
Sexual Behavior Difference within Main Partnerships by Drug Use
Predictors of transmission risk in HIV-positive mSTUDY participants
Predictors of incarceration within the mSTUDY Cohort
Associations Between Cannabis Use, Sexual Behavior, and STIs/HIV In a Cohort of Young MSM
Self-report and biomarkers of drug use

Nina Harawa
HIV intervention models for criminal justice involved Black MSM

Jennifer Hsia
Cigarette and E-Cigarette Use Among MSM of Color in Los Angeles
Syndemic trends in tobacco use, other substance use, risky sexual behaviors, and mental health among MSM based on HIV serostatus

Shehnaz Hussain
Biomarkers and Bugs: Microbiome and cytokine biomarkers in meth using mSTUDY participants

Marjan Javanbakht
Transactional Sex among Men Who Have Sex with Men: Differences by Substance Use and HIV Status

Hayoun Lee
Defining HIV-1 infection specific cellular pathways using single-cell RNA sequencing

Michael Li
Longitudinal associations between minority stress, sexual risk behaviors, and risk of STI infection in MSM

Emeka Okafor
Associations of mood disorder diagnosis, marijuana and drug use and inflammatory cytokines
Correlates of preexposure prophylaxis (PrEP) use among men who have sex with men (MSM) in Los Angeles, California

Brendan Quinn
Needs Assessment of HIV Prevention Efforts: Geospatial analysis of HIV risk behaviors among men of color who have sex with men (MCSM) in Los Angeles county
Health and syndemic factors among MSM of Color in Los Angeles
Alcohol use and HIV clinical health outcomes

Steve Shoptaw
Methamphetamine dose response in mSTUDY cohort

Chelsea Shover
Methamphetamine use trajectory and HIV treatment outcomes in young minority MSM

Sae Takada
Social capital and stigma and risk factors in engagement in care

Janine Trevilliyan
Impact of methamphetamine use and HIV infection on periodontal disease, metabolic disease and cardiovascular riskYour Content Goes Here