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This study will assess the impact of an HIV-1 RNA testing intervention targeting adult patients aged 18-39 years who seek urgent care for symptoms at primary care facilities and meet specific risk criteria for acute HIV infection. All newly diagnosed HIV-infected patients in the intervention arm will be linked to care and offered both immediate treatment and assisted partner notification. Partners will also be tested using the HIV testing intervention, and pre-exposure prophylaxis will be offered to uninfected individuals with HIV-infected partners. The cost-effectiveness of this intervention will be evaluated.
Full description
This is a proof-of-concept study comparing outcomes of a health facility-based acute HIV infection (AHI) and prevalent HIV testing intervention using point of care HIV-1 RNA detection, combined with assisted partner services (aPS) and follow-up in an antiretroviral therapy (ART) cohort for all newly diagnosed individuals and follow-up in a pre-exposure prophylaxis (PrEP) cohort for the uninfected partners of newly diagnosed individuals, compared to standard care.
Study Design: Randomized stepped-wedge study with prospective cohort follow-up of all individuals newly diagnosed with acute or prevalent HIV infection and of up to 300 identified partners of these persons. Individuals enrolled in the observation phase will be compared to those enrolled in the intervention phase at each facility, after undergoing the following procedures in each phase.
Study Population: The study population will be recruited from among male and female adult patients who present for care at 6 public or private outpatient clinics in coastal Kenya. Eligibility criteria for the HIV-1 RNA testing intervention include: 1) age from 18-39 years; 2) not previously diagnosed with HIV infection; and 3) a score ≥2 on our AHI risk score algorithm. Eligibility criteria for partners of newly diagnosed cases with acute or prevalent HIV infection include: 1) age over 18 years; and 2) not previously diagnosed with HIV infection.
Sample Size: 3,175 study participants total, including 2,875 participants in the stepped-wedge study (1,375 in the observation period and 1,500 in the intervention period). We estimate that approximately 2% of participants in the observation period (n=28) and approximately 5% of participants in the intervention period (n=75) will test positive for HIV infection and continue in the study. We estimate that up to 300 partners of newly diagnosed individuals will be offered enrollment and tested for HIV using standard tests (observation period) or HIV-1 RNA testing (intervention period).
Participating Sites: Kenya Medical Research Institute (KEMRI)-Wellcome Trust Programme, Kilifi, Kenya with stepped wedge trial implementation at 6 community health facilities (2-4 public, 2-4 private) and ART and PrEP cohort follow-up at the KEMRI Research Clinic in Mtwapa, Kenya.
Schedule of Procedures: Individuals eligible for the HIV-1 RNA testing intervention will be offered enrollment when they seek care at one of the study facilities, with testing taking place on that same day. For individuals with negative test results for both acute and prevalent HIV infection, no further follow-up will occur. One 6-week follow-up visit will occur after testing for all individuals who are newly diagnosed with HIV. Procedures for the aPS intervention, the ART cohort, and the PrEP cohort are detailed in this protocol.
Study Duration: Study enrollment will occur over 24 months. Following enrollment and study procedures (1-2 hours of time), all participants who test negative for HIV infection will have no further visits. All participants newly diagnosed with HIV will have a 6-week follow-up visit. All participants who enroll in the ART or PrEP cohort will be followed for a total of 12 months.
Intervention: Testing for acute and prevalent HIV infection, followed by partner notification services and immediate ART (provided by the Kenyan Ministry of Health) for newly diagnosed individuals and PrEP (provided by Gilead) for uninfected partners in serodiscordant relationships.
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Inclusion criteria
age from 18-39 years;
not previously diagnosed with HIV infection; and
a score ≥2 on our risk score algorithm to identify persons at higher risk for AHI, with scoring as follows:
Eligibility criteria for partners of newly diagnosed cases with prevalent or acute HIV include:
Exclusion criteria
Patients not meeting inclusion criteria or those who are not willing or able to participate (e.g., due to illness or time constraints, or at the discretion of the study clinician) will be excluded.
Individuals at high risk for Intimate Partner Violence (IPV) are excluded from the aPS intervention, but eligible for all other components of the study.
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2,887 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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