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 mstudy@mednet.ucla.edu for more information.
![](https://themstudy.gorbach.ph.ucla.edu/wp-content/uploads/sites/2/2022/09/towfiqu-barbhuiya-kKKvFbpyZMw-unsplash-2-1024x683.jpg)
PI: Marjan Javanbakht
Mouthwash Clinical Trial: A clinical study that tests whether daily use of mouthwash (Listerine or Bioteneplacebo) helps to reduce repeat oral gonorrhea in folks who recently tested positive
![](https://themstudy.gorbach.ph.ucla.edu/wp-content/uploads/sites/2/2022/09/ryoji-iwata-n31JPLu8_Pw-unsplash-684x1024.jpg)
PI: Nina Harawa
Intersection Interview Study: An interview study aimed to learn more about people’s lived experiences, sexual identity, and injection drug use to improve HIV prevention/treatment
![](https://themstudy.gorbach.ph.ucla.edu/wp-content/uploads/sites/2/2022/09/diana-polekhina-dw6tvK_PuxM-unsplash-1024x683.jpg)
PI: Ricky Bluthenthal
Life Course Interview Study: Another interview study geared at understanding how and why people become injection drug users
![](https://themstudy.gorbach.ph.ucla.edu/wp-content/uploads/sites/2/2022/09/leone-venter-VieM9BdZKFo-unsplash-1024x683.jpg)
PI: Susan Cassels
HIV Hotspots Study: Web-based surveys that focus on social habits, activities, and preferences to shape community “Activity Hotspots” to guide the future of mobile HIV prevention
Additional Sub-Studies
PI Name | Title | |
Jennifer | Fulcher | Recent methamphetamine use is associated with increased rectal mucosal inflammatory cytokines, regardless of HIV-1 serostatus |
Pamina | Gorbach | Self-report and biomarkers of drug use |
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 | Okfar | Associations of mood disorder diagnosis, marijuana and drug use and inflammatory cytokines |
Sae | Takada | Social capital and stigma and risk factors in engagement in care |