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Moschese D, Lazzarin S, Colombo ML, Caruso F, Giacomelli A, Antinori S, Gori A. Breakthrough Acute HIV Infections among Pre-Exposure Prophylaxis Users with High Adherence: A Narrative Review. Viruses 2024; 16:951. [PMID: 38932243 PMCID: PMC11209220 DOI: 10.3390/v16060951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/02/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
Pre-exposure prophylaxis (PrEP) is a pivotal intervention among HIV prevention strategies. We aimed to narratively revise the topic of HIV acute infection in the setting of PrEP exposure with a focus on diagnostic options, clinical features, and future PrEP perspectives, with a particular focus on users with high adherence to PrEP. We searched the main databases (PubMed, Embase, and Scopus) with the keywords "PrEP" or "Pre-Exposure Prophylaxis" and "HIV" or "PLWH" and "breakthrough" or "acute infection" or "primary infection". We included all randomized clinical trials and non-experimental studies (both case reports and observational studies) ever published. In the present narrative review, we revise the diagnostic challenges related to HIV diagnosis in the setting of PrEP and the clinical characteristics and symptoms of breakthrough infections. We discuss the management of acute HIV infection during PrEP and the new challenges that arise from the use of long-acting drugs for PrEP. Our review underlines that although extremely rare, HIV seroconversions are still possible during PrEP, even in a context of high adherence. Efforts to promptly identify these events must be included in the PrEP follow-up in order to minimize the chance of overlooked HIV breakthrough infections and thus exposure to suboptimal concentrations of antiretrovirals.
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Affiliation(s)
- Davide Moschese
- I Division of Infectious Diseases, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, 20157 Milan, Italy;
| | - Samuel Lazzarin
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20133 Milan, Italy; (S.L.); (M.L.C.); (F.C.); (A.G.); (S.A.)
- III Infectious Diseases Unit, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, 20157 Milan, Italy
| | - Martina Laura Colombo
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20133 Milan, Italy; (S.L.); (M.L.C.); (F.C.); (A.G.); (S.A.)
- III Infectious Diseases Unit, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, 20157 Milan, Italy
| | - Francesco Caruso
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20133 Milan, Italy; (S.L.); (M.L.C.); (F.C.); (A.G.); (S.A.)
- II Infectious Diseases Unit, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, 20157 Milan, Italy
| | - Andrea Giacomelli
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20133 Milan, Italy; (S.L.); (M.L.C.); (F.C.); (A.G.); (S.A.)
- III Infectious Diseases Unit, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, 20157 Milan, Italy
| | - Spinello Antinori
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20133 Milan, Italy; (S.L.); (M.L.C.); (F.C.); (A.G.); (S.A.)
- III Infectious Diseases Unit, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, 20157 Milan, Italy
| | - Andrea Gori
- I Division of Infectious Diseases, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, 20157 Milan, Italy;
- Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, 20133 Milan, Italy; (S.L.); (M.L.C.); (F.C.); (A.G.); (S.A.)
- II Infectious Diseases Unit, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, 20157 Milan, Italy
- Centre for Multidisciplinary Research in Health Science (MACH), Università degli Studi di Milano, 20122 Milan, Italy
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Buchbinder SP, Siegler AJ, Coleman K, Vittinghoff E, Wilde G, Lockard A, Scott H, Anderson PL, Laborde N, van der Straten A, Christie RH, Marlborough M, Liu AY. Randomized Controlled Trial of Automated Directly Observed Therapy for Measurement and Support of PrEP Adherence Among Young Men Who have Sex with Men. AIDS Behav 2023; 27:719-732. [PMID: 35984607 PMCID: PMC9908647 DOI: 10.1007/s10461-022-03805-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2022] [Indexed: 11/26/2022]
Abstract
Measurement of adherence to oral pre-exposure prophylaxis (PrEP) in real-time has been challenging. We developed DOT Diary, a smartphone application that combines automated directly observed therapy with a PrEP adherence visualization toolkit, and tested its ability to measure PrEP adherence and to increase adherence among a diverse cohort of young men who have sex with men (MSM). We enrolled 100 MSM in San Francisco and Atlanta and randomly assigned them 2:1 to DOT Diary versus standard of care. Concordance between DOT Diary measurement and drug levels in dried blood spots was substantial, with 91.0% and 85.3% concordance between DOT Diary and emtricitabine-triphosphate and tenofovir-diphosphate, respectively. There was no significant difference in the proportion of participants with detectable PrEP drug levels at 24 weeks between study arms. These results suggest DOT Diary is substantially better than self-reported measures of adherence, but additional interventions are needed to improve PrEP adherence over time.
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Affiliation(s)
- Susan P Buchbinder
- Bridge HIV, San Francisco Department of Public Health, San Francisco, CA, USA.
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA.
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA.
- Bridge HIV, San Francisco Department of Public Health, 25 Van Ness Avenue, Suite 100, San Francisco, CA, 94102, USA.
| | - Aaron J Siegler
- Department of Epidemiology, Emory University, Atlanta, GA, USA
| | - Kenneth Coleman
- Bridge HIV, San Francisco Department of Public Health, San Francisco, CA, USA
| | - Eric Vittinghoff
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - Gretchen Wilde
- Department of Epidemiology, Emory University, Atlanta, GA, USA
| | - Annie Lockard
- Department of Epidemiology, Emory University, Atlanta, GA, USA
| | - Hyman Scott
- Bridge HIV, San Francisco Department of Public Health, San Francisco, CA, USA
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | | | | | - Ariane van der Straten
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
- ASTRA Consulting, Kensington, CA, USA
| | | | | | - Albert Y Liu
- Bridge HIV, San Francisco Department of Public Health, San Francisco, CA, USA
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
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Levy L, Peterson JM, Kudrick LD, Chohan B, Bosek E, Mukui I, Mugambi M, Masyuko S, Mugurungi O, Ndlovu N, Mahaka I, Dunbar M, Hettema A, Kuwengwa RAP, Matse S, Mullick S, Greener L, O'Connor C, Pillay D, Fawzy M, Mellors JW, Parikh UM. Casting a Wide Net: HIV Drug Resistance Monitoring in Pre-Exposure Prophylaxis Seroconverters in the Global Evaluation of Microbicide Sensitivity Project. GLOBAL HEALTH: SCIENCE AND PRACTICE 2022; 10:GHSP-D-21-00122. [PMID: 35487541 PMCID: PMC9053149 DOI: 10.9745/ghsp-d-21-00122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 03/08/2022] [Indexed: 11/24/2022]
Abstract
Global Evaluation of Microbicide Sensitivity projects in 4 countries demonstrated the feasibility of establishing an HIV drug resistance monitoring program for pre-exposure prophylaxis (PrEP). These projects will provide valuable information on seroconversions in the context of PrEP use and will serve to inform Ministries of Health and policy makers on the need for long-term surveillance approaches. Background: Evidence of HIV drug resistance (HIVDR) in individuals using oral pre-exposure prophylaxis (PrEP) who acquire HIV is limited to clinical trials and case studies. More data are needed to understand the risk of HIVDR with oral PrEP during PrEP rollout. Mechanisms to collect these data vary, and are dependent on cost, scale of PrEP distribution, and in-country infrastructure for the identification, collection, and testing of samples from PrEP seroconverters. Methods: The Global Evaluation of Microbicide Sensitivity (GEMS) project, in collaboration with country stakeholders, initiated HIVDR monitoring among new HIV seroconverters with prior PrEP use in Eswatini, Kenya, South Africa, and Zimbabwe. Standalone protocols were developed to assess HIVDR among a national sample of PrEP users. In addition, HIVDR testing was incorporated into existing demonstration projects for key populations. Lessons learned: Countries are supportive of conducting a time-limited evaluation of HIVDR during the early stages of PrEP rollout. As PrEP rollout expands, the need for long-term HIVDR monitoring with PrEP will need to be balanced with maintaining national HIV drug resistance surveillance for pretreatment and acquired drug resistance. Laboratory capacity is a common obstacle to setting up a monitoring system. Conclusions: Establishing HIV resistance monitoring within PrEP programs is feasible. Approaches to drug resistance monitoring may evolve as the PrEP programs mature and expand. The methods and implementation support offered by GEMS assisted countries in developing methods to monitor for drug resistance that best fit their PrEP program needs and resources.
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Affiliation(s)
| | | | | | - Bhavna Chohan
- University of Washington, Seattle, WA, USA
- Kenya Medical Research Institute, Nairobi, Kenya
| | - Everline Bosek
- University of Washington, Seattle, WA, USA
- Kenya Medical Research Institute, Nairobi, Kenya
| | - Irene Mukui
- Drugs for Neglected Diseases initiative, Nairobi, Kenya
| | - Mary Mugambi
- National AIDS & STI Control Program, Nairobi, Kenya
| | | | - Owen Mugurungi
- Ministry of Health and Child Care of Zimbabwe, Harare, Zimbabwe
| | | | | | | | | | | | - Sindy Matse
- Eswatini Ministry of Health, Mbabane, Eswatini
| | - Saiqa Mullick
- Wits Reproductive Health and HIV Institute, Faculty of Health Science, University of Witwatersrand, Johannesburg, South Africa
| | - Letitia Greener
- Population Services International, Johannesburg, South Africa
| | | | - Diantha Pillay
- International Partnership for Microbicides, Johannesburg, South Africa
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Koss CA, Havlir DV, Ayieko J, Kwarisiima D, Kabami J, Chamie G, Atukunda M, Mwinike Y, Mwangwa F, Owaraganise A, Peng J, Olilo W, Snyman K, Awuonda B, Clark TD, Black D, Nugent J, Brown LB, Marquez C, Okochi H, Zhang K, Camlin CS, Jain V, Gandhi M, Cohen CR, Bukusi EA, Charlebois ED, Petersen ML, Kamya MR, Balzer LB. HIV incidence after pre-exposure prophylaxis initiation among women and men at elevated HIV risk: A population-based study in rural Kenya and Uganda. PLoS Med 2021; 18:e1003492. [PMID: 33561143 PMCID: PMC7872279 DOI: 10.1371/journal.pmed.1003492] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 01/04/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Oral pre-exposure prophylaxis (PrEP) is highly effective for HIV prevention, but data are limited on HIV incidence among PrEP users in generalized epidemic settings, particularly outside of selected risk groups. We performed a population-based PrEP study in rural Kenya and Uganda and sought to evaluate both changes in HIV incidence and clinical and virologic outcomes following seroconversion on PrEP. METHODS AND FINDINGS During population-level HIV testing of individuals ≥15 years in 16 communities in the Sustainable East Africa Research in Community Health (SEARCH) study (NCT01864603), we offered universal access to PrEP with enhanced counseling for persons at elevated HIV risk (based on serodifferent partnership, machine learning-based risk score, or self-identified HIV risk). We offered rapid or same-day PrEP initiation and flexible service delivery with follow-up visits at facilities or community-based sites at 4, 12, and every 12 weeks up to week 144. Among participants with incident HIV infection after PrEP initiation, we offered same-day antiretroviral therapy (ART) initiation and analyzed HIV RNA, tenofovir hair concentrations, drug resistance, and viral suppression (<1,000 c/ml based on available assays) after ART start. Using Poisson regression with cluster-robust standard errors, we compared HIV incidence among PrEP initiators to incidence among propensity score-matched recent historical controls (from the year before PrEP availability) in 8 of the 16 communities, adjusted for risk group. Among 74,541 individuals who tested negative for HIV, 15,632/74,541 (21%) were assessed to be at elevated HIV risk; 5,447/15,632 (35%) initiated PrEP (49% female; 29% 15-24 years; 19% in serodifferent partnerships), of whom 79% engaged in ≥1 follow-up visit and 61% self-reported PrEP adherence at ≥1 visit. Over 7,150 person-years of follow-up, HIV incidence was 0.35 per 100 person-years (95% confidence interval [CI] 0.22-0.49) among PrEP initiators. Among matched controls, HIV incidence was 0.92 per 100 person-years (95% CI 0.49-1.41), corresponding to 74% lower incidence among PrEP initiators compared to matched controls (adjusted incidence rate ratio [aIRR] 0.26, 95% CI 0.09-0.75; p = 0.013). Among women, HIV incidence was 76% lower among PrEP initiators versus matched controls (aIRR 0.24, 95% CI 0.07-0.79; p = 0.019); among men, HIV incidence was 40% lower, but not significantly so (aIRR 0.60, 95% CI 0.12-3.05; p = 0.54). Of 25 participants with incident HIV infection (68% women), 7/25 (28%) reported taking PrEP ≤30 days before HIV diagnosis, and 24/25 (96%) started ART. Of those with repeat HIV RNA after ART start, 18/19 (95%) had <1,000 c/ml. One participant with viral non-suppression was found to have transmitted viral resistance, as well as emtricitabine resistance possibly related to PrEP use. Limitations include the lack of contemporaneous controls to assess HIV incidence without PrEP and that plasma samples were not archived to assess for baseline acute infection. CONCLUSIONS Population-level offer of PrEP with rapid start and flexible service delivery was associated with 74% lower HIV incidence among PrEP initiators compared to matched recent controls prior to PrEP availability. HIV infections were significantly lower among women who started PrEP. Universal HIV testing with linkage to treatment and prevention, including PrEP, is a promising approach to accelerate reductions in new infections in generalized epidemic settings. TRIAL REGISTRATION ClinicalTrials.gov NCT01864603.
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Affiliation(s)
- Catherine A. Koss
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, California, United States of America
- * E-mail:
| | - Diane V. Havlir
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, California, United States of America
| | - James Ayieko
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | | | - Jane Kabami
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - Gabriel Chamie
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, California, United States of America
| | | | - Yusuf Mwinike
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | | | | | - James Peng
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, California, United States of America
| | - Winter Olilo
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Katherine Snyman
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, California, United States of America
| | - Benard Awuonda
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Tamara D. Clark
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, California, United States of America
| | - Douglas Black
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, California, United States of America
| | - Joshua Nugent
- Department of Biostatistics and Epidemiology, University of Massachusetts, Amherst, Amherst, Massachusetts, United States of America
| | - Lillian B. Brown
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, California, United States of America
| | - Carina Marquez
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, California, United States of America
| | - Hideaki Okochi
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, California, United States of America
| | - Kevin Zhang
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, California, United States of America
| | - Carol S. Camlin
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, California, United States of America
| | - Vivek Jain
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, California, United States of America
| | - Monica Gandhi
- Division of HIV, Infectious Diseases, and Global Medicine, University of California, San Francisco, San Francisco, California, United States of America
| | - Craig R. Cohen
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, California, United States of America
| | - Elizabeth A. Bukusi
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, California, United States of America
| | - Edwin D. Charlebois
- Division of Prevention Science, Department of Medicine, University of California, San Francisco, San Francisco, California, United States of America
| | - Maya L. Petersen
- Graduate Group in Biostatistics, School of Public Health, University of California, Berkeley, Berkeley, California, United States of America
| | - Moses R. Kamya
- Infectious Diseases Research Collaboration, Kampala, Uganda
- School of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Laura B. Balzer
- Department of Biostatistics and Epidemiology, University of Massachusetts, Amherst, Amherst, Massachusetts, United States of America
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