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      Multi-level Interventions to Promote Oral Pre-exposure Prophylaxis Use Among Adolescent Girls and Young Women: a Review of Recent Research

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          Abstract

          Purpose of review

          This review summarizes interventions to promote HIV pre-exposure prophylaxis (PrEP) use among adolescent girls and young women (AGYW) in HIV endemic settings, while also highlighting gaps in our current measures of PrEP intervention success.

          Recent findings

          AGYW report challenges with PrEP use, although the field is currently grappling with defining metrics of optimal PrEP use applicable for AGYW with dynamic HIV prevention needs. Ongoing studies are exploring multilevel interventions to address barriers to PrEP use for AGYW. At the individual and interpersonal levels, mHealth, drug-level feedback, adherence counseling, peer groups, and PrEP decision-support interventions are acceptable and feasible for AGYW although limited effectiveness data are available. At the health facility and community levels, PrEP demand creation, modified PrEP refill schedules, and integrated PrEP and reproductive health services are also promising options to support PrEP use for AGYW.

          Summary

          As PrEP delivery continues to expand, improved metrics of success and evidence on the effectiveness of multi-level adherence support interventions are needed to maximize the impact of PrEP for AGYW in HIV endemic settings. We present case studies of these intervention approaches but limited data are currently available on the effectiveness of these approaches. We will look toward forthcoming study results on the impact of PrEP interventions, including mHealth, drug-level feedback and other enhanced counseling, peer support, decision-support tools, PrEP demand creation, modified refills, and integrated service delivery, to determine the ideal package of PrEP support approaches for AGYW.

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          Most cited references16

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          Preexposure Chemoprophylaxis for HIV Prevention in Men Who Have Sex with Men

          Antiretroviral chemoprophylaxis before exposure is a promising approach for the prevention of human immunodeficiency virus (HIV) acquisition. We randomly assigned 2499 HIV-seronegative men or transgender women who have sex with men to receive a combination of two oral antiretroviral drugs, emtricitabine and tenofovir disoproxil fumarate (FTC-TDF), or placebo once daily. All subjects received HIV testing, risk-reduction counseling, condoms, and management of sexually transmitted infections. The study subjects were followed for 3324 person-years (median, 1.2 years; maximum, 2.8 years). Of these subjects, 10 were found to have been infected with HIV at enrollment, and 100 became infected during follow-up (36 in the FTC-TDF group and 64 in the placebo group), indicating a 44% reduction in the incidence of HIV (95% confidence interval, 15 to 63; P=0.005). In the FTC-TDF group, the study drug was detected in 22 of 43 of seronegative subjects (51%) and in 3 of 34 HIV-infected subjects (9%) (P<0.001). Nausea was reported more frequently during the first 4 weeks in the FTC-TDF group than in the placebo group (P<0.001). The two groups had similar rates of serious adverse events (P=0.57). Oral FTC-TDF provided protection against the acquisition of HIV infection among the subjects. Detectable blood levels strongly correlated with the prophylactic effect. (Funded by the National Institutes of Health and the Bill and Melinda Gates Foundation; ClinicalTrials.gov number, NCT00458393.).
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            Antiretroviral Prophylaxis for HIV Prevention in Heterosexual Men and Women

            New England Journal of Medicine, 367(5), 399-410
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              Antiretroviral preexposure prophylaxis for heterosexual HIV transmission in Botswana.

              Preexposure prophylaxis with antiretroviral agents has been shown to reduce the transmission of human immunodeficiency virus (HIV) among men who have sex with men; however, the efficacy among heterosexuals is uncertain. We randomly assigned HIV-seronegative men and women to receive either tenofovir disoproxil fumarate and emtricitabine (TDF-FTC) or matching placebo once daily. Monthly study visits were scheduled, and participants received a comprehensive package of prevention services, including HIV testing, counseling on adherence to medication, management of sexually transmitted infections, monitoring for adverse events, and individualized counseling on risk reduction; bone mineral density testing was performed semiannually in a subgroup of participants. A total of 1219 men and women underwent randomization (45.7% women) and were followed for 1563 person-years (median, 1.1 years; maximum, 3.7 years). Because of low retention and logistic limitations, we concluded the study early and followed enrolled participants through an orderly study closure rather than expanding enrollment. The TDF-FTC group had higher rates of nausea (18.5% vs. 7.1%, P<0.001), vomiting (11.3% vs. 7.1%, P=0.008), and dizziness (15.1% vs. 11.0%, P=0.03) than the placebo group, but the rates of serious adverse events were similar (P=0.90). Participants who received TDF-FTC, as compared with those who received placebo, had a significant decline in bone mineral density. K65R, M184V, and A62V resistance mutations developed in 1 participant in the TDF-FTC group who had had an unrecognized acute HIV infection at enrollment. In a modified intention-to-treat analysis that included the 33 participants who became infected during the study (9 in the TDF-FTC group and 24 in the placebo group; 1.2 and 3.1 infections per 100 person-years, respectively), the efficacy of TDF-FTC was 62.2% (95% confidence interval, 21.5 to 83.4; P=0.03). Daily TDF-FTC prophylaxis prevented HIV infection in sexually active heterosexual adults. The long-term safety of daily TDF-FTC prophylaxis, including the effect on bone mineral density, remains unknown. (Funded by the Centers for Disease Control and Prevention and the National Institutes of Health; TDF2 ClinicalTrials.gov number, NCT00448669.).
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                Author and article information

                Contributors
                jvelloza@uw.edu
                Journal
                Curr HIV/AIDS Rep
                Curr HIV/AIDS Rep
                Current HIV/AIDS Reports
                Springer US (New York )
                1548-3568
                1548-3576
                31 October 2021
                : 1-10
                Affiliations
                [1 ]Partners in Health and Research Development, Thika, Kenya
                [2 ]GRID grid.11951.3d, ISNI 0000 0004 1937 1135, Faculty of Health Sciences, Wits Reproductive Health & HIV Institute (Wits RHI), , University of the Witwatersrand, ; Johannesburg, South Africa
                [3 ]GRID grid.34477.33, ISNI 0000000122986657, Department of Global Health, , University of Washington, ; 325 Ninth Avenue, Seattle, WA 98104 USA
                Author information
                http://orcid.org/0000-0001-7242-7415
                Article
                576
                10.1007/s11904-021-00576-9
                8557703
                34719745
                39cc42a4-2fe2-4860-909e-fd88e76b6982
                © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2021

                This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.

                History
                : 26 August 2021
                Categories
                The Science of Prevention (R Heffron and K Ngure, Section Editors)

                Infectious disease & Microbiology
                pre-exposure prophylaxis,adherence,uptake,prevention-effective use,adolescent girls and young women,hiv prevention

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