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The Stay Study: A Demonstration Project Advancing PrEP Delivery in the San Francisco Bay Area Transgender Community

The Stay Study: A Demonstration Project Advancing PrEP Delivery in the San Francisco Bay Area Transgender Community

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03120936
Enrollment
158
Registered
2017-04-19
Start date
2017-08-08
Completion date
2020-12-01
Last updated
2021-04-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Transgender Persons, Pre-Exposure Prophylaxis

Keywords

Adherence, Transgender, PrEP, HIV Prevention, Truvada, HIV Risk Reduction

Brief summary

The Stay Study is a multi-site, open-label HIV pre-exposure prophylaxis (PrEP) demonstration project for advancing PrEP delivery in the San Francisco Bay Area Transgender Community. Approximately 188 HIV-uninfected participants will be enrolled at 4 sites in San Francisco and Fremont and will be provided Truvada to take orally once daily as PrEP.

Detailed description

PrEP stands for Pre-Exposure Prophylaxis, an HIV prevention method that involves HIV negative people taking antiviral drugs daily to try to help prevent HIV infection. Studies with men who have sex with men (MSM) and transgender women showed that people who took PrEP were less likely to become infected with HIV than those who did not take it. The main purpose of this PrEP Demonstration Project is to make PrEP accessible to people in the transgender community. As part of this project, we will study whether transgender women and men are interested in taking PrEP, and, if so, for how long and how frequently they take the medication and how these relate to demographics (such as race, age, and education). We will also assess reasons for stopping PrEP and measure sexual behaviors of participants in the demonstration project.

Interventions

Open-label emtricitabine 200mg/tenofovir 300mg

BEHAVIORALPrEP support

HIV/STI testing and counseling, adherence counseling, medical exams, safety monitoring, short message system (SMS), ie text message, and peer support, panel management.

Sponsors

San Francisco Department of Public Health
CollaboratorOTHER_GOV
University of California, San Francisco
CollaboratorOTHER
San Francisco Community Health Center
CollaboratorUNKNOWN
Tri-City Health Center
CollaboratorUNKNOWN
California HIV/AIDS Research Program
CollaboratorOTHER
Public Health Foundation Enterprises, Inc.
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Self-identify as a transgender woman, transgender man, or gender non-conforming * Willing and able to provide written informed consent; * Age ≥ 18 years; * HIV-1-uninfected defined per site HIV testing algorithm performed within 7 (and up to 14) days of enrollment if PrEP naïve or within 90 days if currently on PrEP (see SSP manual) * Expressed desired to use or continue PrEP, anticipated risk, or evidence of risk for acquiring HIV-1 infection including having any cisgender male or transgender female partners in the past 12 months and not in a mutually monogamous partnership with a recently tested, HIV-negative partner AND at least one of the following; 1. any anal or vaginal sex in the past 12 months; or 2. any STI diagnosed or reported in the past 12 months; or 3. an ongoing sexual relationship with an HIV-positive partner; or 4. exchange of money, gifts, shelter, or drugs for sex * Fluent in English or Spanish

Exclusion criteria

* Individuals with any of the following will be excluded: * confirmed HIV infection by laboratory testing * clinical symptoms consistent with possible acute HIV infection \[fatigue, fever, rash, night sweats, and adenopathy\]; * underlying bone disease (osteopenia or osteoporosis) * Receipt of prohibited medications: interleukin therapy, medications with significant nephrotoxic potential (including but not limited to amphotericin B, aminoglycosides, cidofovir, foscarnet and systemic chemotherapy), and medications that may inhibit or compete for elimination via active renal tubular secretion (including but not limited to probenecid) * No prior or current participation in the active arm of an HIV vaccine trial with evidence of vaccine-induced seropositivity. * Unwilling to attend quarterly follow-up visits, which will include risk reduction/adherence counseling and repeat laboratory testing * Has any other condition that, based on the opinion of the investigator or designee, would preclude provision of informed consent; make participation in the project unsafe; complicate interpretation of outcome data; or otherwise interfere with achieving the project objectives.

Design outcomes

Primary

MeasureTime frameDescription
PrEP uptake and its correlates by gender identity, race/ethnicity, age, education, site, hormone status, and risk practicesBaselineCombined analysis of PrEP acceptance and refusal rates and sociodemographic correlates of PrEP acceptance and refusal.
Patterns and correlates of PrEP adherence among transgender individuals in the Stay Study.12 monthsCombined analysis of PrEP adherence rates as measured by: Tenofovir-diphosphate (TFV-DP) levels in dried blood spots (DBS); medication possession ratio; self-reported adherence. Patterns and correlates of adherence

Secondary

MeasureTime frameDescription
Reasons transgender people choose to decline PrEPBaselineReasons for declining PrEP
Measure of changes in sexual risk taking behavior among Stay Study participants taking PrEP12 monthsComputer-Assisted Self-interview (CASI) data: Numbers of sexual partners, by serostatus and condom use, and anal/vaginal sex episodes, by partner serostatus, role of respondent, and condom use; sexually transmitted infection (STI) testing
Measure of changes in STI among Stay Study participants taking PrEP12 monthsSTI testing
Side effects and toxicities of PrEP among study participants12 monthsCombined analysis of side effects and toxicities, including creatinine elevations
PrEP discontinuations and reasons for discontinuation12 monthsPrEP discontinuations, reasons for discontinuation
Differences in duration of PrEP use and study retention by sociodemographics, including race/ethnicity, age, education and risk practices15 monthsCombined analysis of CASI and interview data.
Social benefits experienced by study participants12 monthsSocial impact questionnaire
Effects of PrEP on hormone levels12 monthsCombined analysis of hormone levels as relates to measures of adherence, such as TFV-DP in DBS, tenofovir levels in plasma
The effect of hormone use on tenofovir-diphosphate concentrations among study participants12 monthsCombined analysis of hormone levels as relates to measures of adherence, such as TFV-DP in DBS, tenofovir levels in plasma
Social harms experienced by study participants12 monthsSocial Impact questionnaire
Referrals to other HIV prevention services within the Stay Study15 monthsCombined analysis of CASI and interview data
Access to and uptake of PrEP after project completion3 monthsCombined analysis of the proportion of participants interested in continuing PrEP and successfully able to access PrEP
Acceptability and uptake of Stay Study PrEP support components12 monthsCombined analysis of CASI and interview responses.
The number of seroconversions and HIV drug resistance patterns among persons who become HIV infected in the project12 monthsHIV drug resistance patterns among persons who become infected
Reasons transgender people choose to initiate PrEPBaselineReasons for initiating PrEP

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 3, 2026