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Achilles SL, Kelly CW, Hoesley CJ, Blithe DL, Brown J, Richardson BA, Devlin B, Hendrix CW, Poloyac SM, Marzinke MA, Gundacker H, Singh D, Piper JM, Johnson S, Steytler J, Chen BA. Phase 1 randomized trials to assess safety, pharmacokinetics, and vaginal bleeding associated with use of extended duration dapivirine and levonorgestrel vaginal rings. PLoS One 2024; 19:e0304552. [PMID: 38838028 PMCID: PMC11152307 DOI: 10.1371/journal.pone.0304552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 05/14/2024] [Indexed: 06/07/2024] Open
Abstract
BACKGROUND Vaginal rings formulated to deliver two drugs simultaneously have potential as user-controlled, long-acting methods for dual prevention of HIV and pregnancy. METHODS Two phase 1 randomized trials (MTN-030/IPM 041 and MTN-044/IPM 053/CCN019) respectively enrolled 24 and 25 healthy, HIV-negative participants to evaluate safety, pharmacokinetics, and vaginal bleeding associated with use of a vaginal ring containing 200mg dapivirine (DPV) and 320mg levonorgestrel (LNG) designed for 90-day use. MTN-030/IPM 041 compared the DPV/LNG ring to a DPV-only ring (200mg) over 14 days of use. MTN-044/IPM 053/CCN019 compared continuous or cyclic use of the DPV/LNG ring over 90 days of use. Safety was assessed by recording adverse events (AEs). DPV and LNG concentrations were quantified in plasma, cervicovaginal fluid, and cervical tissue. Vaginal bleeding was self-reported. RESULTS There were no differences in the proportion of participants with grade ≥2 genitourinary AEs or grade ≥3 AEs with DPV/LNG ring vs. DPV ring use (p = .22), or with DPV/LNG ring continuous vs. cyclic use (p = .67). Higher plasma DPV concentrations were observed in users of DPV/LNG compared to DPV-only rings (Cmax p = 0.049; AUC p = 0.091). Plasma DPV and LNG concentrations were comparable with continuous and cyclic use (Cmax p = 0.74; AUC p = 0.25). With cyclic use, median nadir plasma DPV concentration was approximately 300 pg/mL two days after removal and median t1/2 for cervicovaginal fluid DPV concentration was 5.76 hours (n = 3). Overall bleeding experiences did not differ between continuous and cyclic users (p = 0.12). CONCLUSIONS The extended duration DPV/ LNG rings were well tolerated and the observed DPV concentrations in plasma and cervicovaginal fluid when used continuously exceeded concentrations observed in previous DPV ring efficacy studies. LNG concentrations in plasma were comparable with other efficacious LNG-based contraceptives. Genital DPV concentrations had a short half-life and were thus not well sustained following ring removal.
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Affiliation(s)
- Sharon L. Achilles
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Magee-Womens Research Institute, Pittsburgh, Pennsylvania, United States of America
| | - Clifton W. Kelly
- Statistical Center for HIV/AIDS Research & Prevention, Fred Hutchinson Cancer Center, Seattle, Washington, United States of America
| | - Craig J. Hoesley
- University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama, United States of America
| | - Diana L. Blithe
- National Institute of Child Health and Human Development, Contraceptive Development Program, DIPHR, NIH, Bethesda, Maryland, United States of America
| | - Jill Brown
- National Institute of Child Health and Human Development, Contraceptive Development Program, DIPHR, NIH, Bethesda, Maryland, United States of America
| | - Barbra A. Richardson
- Statistical Center for HIV/AIDS Research & Prevention, Fred Hutchinson Cancer Center, Seattle, Washington, United States of America
- Department of Biostatistics, University of Washington, Seattle, Washington, United States of America
| | - Brid Devlin
- International Partnership for Microbicides, Silver Spring, Maryland, United States of America
| | - Craig W. Hendrix
- Department of Medicine, Division of Clinical Pharmacology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Samuel M. Poloyac
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Mark A. Marzinke
- Department of Medicine, Division of Clinical Pharmacology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Holly Gundacker
- Statistical Center for HIV/AIDS Research & Prevention, Fred Hutchinson Cancer Center, Seattle, Washington, United States of America
| | - Devika Singh
- Magee-Womens Research Institute, Pittsburgh, Pennsylvania, United States of America
| | - Jeanna M. Piper
- National Institutes of Allergy and Infectious Disease, NIH, Bethesda, Maryland
| | - Sherri Johnson
- FHI 360, Durham, North Carolina, United States of America
| | - John Steytler
- International Partnership for Microbicides, Silver Spring, Maryland, United States of America
| | - Beatrice A. Chen
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Magee-Womens Research Institute, Pittsburgh, Pennsylvania, United States of America
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Ullah Nayan M, Sillman B, Hasan M, Deodhar S, Das S, Sultana A, Thai Hoang Le N, Soriano V, Edagwa B, Gendelman HE. Advances in long-acting slow effective release antiretroviral therapies for treatment and prevention of HIV infection. Adv Drug Deliv Rev 2023; 200:115009. [PMID: 37451501 DOI: 10.1016/j.addr.2023.115009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/21/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023]
Abstract
Adherence to daily oral antiretroviral therapy (ART) is a barrier to both treatment and prevention of human immunodeficiency virus (HIV) infection. To overcome limitations of life-long daily regimen adherence, long-acting (LA) injectable antiretroviral (ARV) drugs, nanoformulations, implants, vaginal rings, microarray patches, and ultra-long-acting (ULA) prodrugs are now available or in development. These medicines enable persons who are or at risk for HIV infection to be treated with simplified ART regimens. First-generation LA cabotegravir, rilpivirine, and lenacapavir injectables and a dapivirine vaginal ring are now in use. However, each remains limited by existing dosing intervals, ease of administration, or difficulties in finding drug partners. ULA ART regimens provide an answer, but to date, such next-generation formulations remain in development. Establishing the niche will require affirmation of extended dosing, improved access, reduced injection volumes, improved pharmacokinetic profiles, selections of combination treatments, and synchronization of healthcare support. Based on such needs, this review highlights recent pharmacological advances and a future treatment perspective. While first-generation LA ARTs are available for HIV care, they remain far from ideal in meeting patient needs. ULA medicines, now in advanced preclinical development, may close gaps toward broader usage and treatment options.
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Affiliation(s)
- Mohammad Ullah Nayan
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, NE, USA
| | - Brady Sillman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, NE, USA
| | - Mahmudul Hasan
- Department of Pharmaceutical Science, University of Nebraska Medical Center, NE, USA
| | - Suyash Deodhar
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, NE, USA
| | - Srijanee Das
- Department of Pathology and Microbiology, University of Nebraska Medical Center, NE, USA
| | - Ashrafi Sultana
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, NE, USA
| | - Nam Thai Hoang Le
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, NE, USA
| | | | - Benson Edagwa
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, NE, USA.
| | - Howard E Gendelman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, NE, USA.
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Sayyed SK, Quraishi M, Jobby R, Rameshkumar N, Kayalvizhi N, Krishnan M, Sonawane T. A computational overview of integrase strand transfer inhibitors (INSTIs) against emerging and evolving drug-resistant HIV-1 integrase mutants. Arch Microbiol 2023; 205:142. [PMID: 36966200 PMCID: PMC10039815 DOI: 10.1007/s00203-023-03461-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/26/2023] [Accepted: 03/01/2023] [Indexed: 03/27/2023]
Abstract
AIDS (Acquired immunodeficiency syndrome) is one of the chronic and potentially life-threatening epidemics across the world. Hitherto, the non-existence of definitive drugs that could completely cure the Human immunodeficiency virus (HIV) implies an urgent necessity for the discovery of novel anti-HIV agents. Since integration is the most crucial stage in retroviral replication, hindering it can inhibit overall viral transmission. The 5 FDA-approved integrase inhibitors were computationally investigated, especially owing to the rising multiple mutations against their susceptibility. This comparative study will open new possibilities to guide the rational design of novel lead compounds for antiretroviral therapies (ARTs), more specifically the structure-based design of novel Integrase strand transfer inhibitors (INSTIs) that may possess a better resistance profile than present drugs. Further, we have discussed potent anti-HIV natural compounds and their interactions as an alternative approach, recommending the urgent need to tap into the rich vein of indigenous knowledge for reverse pharmacology. Moreover, herein, we discuss existing evidence that might change in the near future.
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Affiliation(s)
- Sharif Karim Sayyed
- Amity Institute of Biotechnology, Amity University, Mumbai, Maharashtra, 410206, India
| | - Marzuqa Quraishi
- Amity Institute of Biotechnology, Amity University, Mumbai, Maharashtra, 410206, India
| | - Renitta Jobby
- Amity Institute of Biotechnology, Amity University, Mumbai, Maharashtra, 410206, India
| | | | - Nagarajan Kayalvizhi
- Regenerative Medicine Laboratory, Department of Zoology, School of Life Sciences, Periyar University, Salem, Tamil Nadu, 636011, India
| | | | - Tareeka Sonawane
- Amity Institute of Biotechnology, Amity University, Mumbai, Maharashtra, 410206, India.
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4
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Sawant AA, Jadav SS, Nayani K, Mainkar PS. Development of Synthetic Approaches Towards HIV Integrase Strand Transfer Inhibitors (INSTIs). ChemistrySelect 2022. [DOI: 10.1002/slct.202201915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ashwini Amol Sawant
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Surender Singh Jadav
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- Department of Applied Biology CSIR-Indian Institute of Chemical Technology Tarnaka Uppal Road Hyderabad 500037 India
| | - Kiranmai Nayani
- Department of Organic Synthesis and Process Chemistry CSIR-Indian Institute of Chemical Technology Tarnaka Uppal Road Hyderabad 500037 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Prathama S. Mainkar
- Department of Organic Synthesis and Process Chemistry CSIR-Indian Institute of Chemical Technology Tarnaka Uppal Road Hyderabad 500037 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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Tong X, Patel SK, Li J, Patton D, Xu E, Anderson PL, Parikh U, Sweeney Y, Strizki J, Hillier SL, Rohan LC. Development and Evaluation of Nanoparticles-in-Film Technology to Achieve Extended In Vivo Exposure of MK-2048 for HIV Prevention. Polymers (Basel) 2022; 14:polym14061196. [PMID: 35335526 PMCID: PMC8955144 DOI: 10.3390/polym14061196] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/05/2022] [Accepted: 03/11/2022] [Indexed: 11/17/2022] Open
Abstract
MK-2048 is a second-generation integrase inhibitor active against HIV, which has been applied vaginally using ring formulations. In this work, a nanoparticle-in-film technology was developed as a discrete pre-exposure prophylactic product option against HIV for an extended duration of use. A film platform loaded with poly (lactic-co-glycolic acid) nanoparticles (PNP) encapsulating MK-2048 was engineered. MK-2048 PNPs were loaded into films that were manufactured via the solvent casting method. Physicochemical and mechanical properties, in vitro efficacy, Lactobacillus compatibility, in vitro and ex vivo permeability, and in vivo pharmacokinetics in macaques were evaluated. PNPs with a mean diameter of 382.2 nm and −15.2 mV zeta potential were obtained with 95.2% drug encapsulation efficiency. PNP films showed comparable in vitro efficacy to free MK-2048 (IC50 0.46 vs. 0.54 nM) and were found to have no impact on Lactobacillus. MK-2048 encapsulated in PNPs showed an increase in permeability (>4-fold) compared to the free MK-2048 in MDCKII cell lines. Furthermore, PNPs had higher ectocervical tissue permeability (1.7-fold) compared to free MK-2048. PNP films showed sustained drug levels for at least 3 weeks in the macaque vaginal fluid. This work demonstrates the synergy of integrating nanomedicine and polymeric film technology to achieve sustained vaginal drug delivery.
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Affiliation(s)
- Xin Tong
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15213, USA; (X.T.); (S.K.P.); (J.L.); (E.X.)
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA; (U.P.); (S.L.H.)
| | - Sravan Kumar Patel
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15213, USA; (X.T.); (S.K.P.); (J.L.); (E.X.)
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA; (U.P.); (S.L.H.)
| | - Jing Li
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15213, USA; (X.T.); (S.K.P.); (J.L.); (E.X.)
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA; (U.P.); (S.L.H.)
| | - Dorothy Patton
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA; (D.P.); (Y.S.)
| | - Elaine Xu
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15213, USA; (X.T.); (S.K.P.); (J.L.); (E.X.)
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA; (U.P.); (S.L.H.)
| | - Peter L. Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, CO 80045, USA;
| | - Urvi Parikh
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA; (U.P.); (S.L.H.)
| | - Yvonne Sweeney
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA; (D.P.); (Y.S.)
| | - Julie Strizki
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ 07033, USA;
| | - Sharon L. Hillier
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA; (U.P.); (S.L.H.)
- Department of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Lisa C. Rohan
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15213, USA; (X.T.); (S.K.P.); (J.L.); (E.X.)
- Magee-Womens Research Institute, Pittsburgh, PA 15213, USA; (U.P.); (S.L.H.)
- Department of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Correspondence: ; Tel.: +1-412-641-6108
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Philbin MM, Perez-Brumer A. Promise, perils and cautious optimism: the next frontier in long-acting modalities for the treatment and prevention of HIV. Curr Opin HIV AIDS 2022; 17:72-88. [PMID: 35225248 PMCID: PMC8915989 DOI: 10.1097/coh.0000000000000723] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW This paper provides a critical review of recent therapeutic advances in long-acting (LA) modalities for human immunodeficiency virus (HIV) treatment and prevention. RECENT FINDINGS LA injectable antiretroviral therapy (ART) has been approved in the United States, Canada and Europe; the United States also has approved LA injectable preexposure prophylaxis (PrEP) and the World Health Organization has recommended the vaginal PrEP ring. Current LA PrEP modalities in clinical trials include injections, films, rings, and implants; LA ART modalities in trials include subcutaneous injections and long-term oral pills. Although LA modalities hold incredible promise, global availability is inhibited by long-standing multilevel perils including declining multilateral funding, patent protections and lack of political will. Once available, access and uptake are limited by factors such as insurance coverage, clinic access, labor markets, stigma, and structural racism and sexism. These must be addressed to facilitate equitable access for all. SUMMARY There have been tremendous recent advances in the efficacy of LA ART and PrEP modalities, providing renewed hope that 'ending the HIV epidemic' is within reach. However, pervasive socio-structural inequities limit the promise of LA modalities, highlighting the need for cautious optimism in light of the embedded inequities in the trajectory of research, development, and population-level implementation.
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Affiliation(s)
- Morgan M. Philbin
- Department of Sociomedical Sciences, Columbia University Mailman School of Public Health, New York City, New York, USA
| | - Amaya Perez-Brumer
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
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Ghosh S, Jayaram P, Kabekkodu SP, Satyamoorthy K. Targeted drug delivery in cervical cancer: Current perspectives. Eur J Pharmacol 2022; 917:174751. [PMID: 35021110 DOI: 10.1016/j.ejphar.2022.174751] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/29/2021] [Accepted: 01/05/2022] [Indexed: 02/06/2023]
Abstract
Cervical cancer is preventable yet one of the most prevalent cancers among women around the globe. Though regular screening has resulted in the decline in incidence, the disease claims a high number of lives every year, especially in the developing countries. Owing to rather aggressive and non-specific nature of the conventional chemotherapeutics, there is a growing need for newer treatment modalities. The advent of nanotechnology has assisted in this through the use of nanocarriers for targeted drug delivery. A number of nanocarriers are continuously being developed and studied for their application in drug delivery. The present review summarises the different drug delivery approaches and nanocarriers that can be useful, their advantages and limitation.
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Affiliation(s)
- Supriti Ghosh
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Pradyumna Jayaram
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Shama Prasada Kabekkodu
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Kapaettu Satyamoorthy
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
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Joseph Davey DL, Bekker LG, Bukusi EA, Chi BH, Delany-Moretlwe S, Goga A, Lyerly AD, Mgodi NM, Mugo N, Myer L, Noguchi LM, Stranix-Chibanda L, Slack C, Pintye J. Where are the pregnant and breastfeeding women in new pre-exposure prophylaxis trials? The imperative to overcome the evidence gap. THE LANCET HIV 2022; 9:e214-e222. [DOI: 10.1016/s2352-3018(21)00280-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/11/2021] [Accepted: 10/20/2021] [Indexed: 10/19/2022]
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Palanee-Phillips T, Baum MM, Moss JA, Clark MR, Nuttall J, Romano JW. Drug-releasing vaginal rings for HIV/STI and pregnancy prevention: A review of recent advances and clinical applications. Expert Opin Drug Deliv 2021; 19:47-58. [PMID: 34958283 DOI: 10.1080/17425247.2022.2020242] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Adolescent girls and young women (AGYW), as well as pre- and post-menopausal women globally would benefit from expanded choice to address their sexual and reproductive health (SRH) needs related to Human Immunodeficiency Virus (HIV), sexually transmitted infections (STIs) and pregnancy prevention. Lack of adequate preventative vaccines for HIV/STIs reinforces public health prioritization for options women may use independently to mitigate risk for infectious disease and unplanned pregnancy. Drug releasing intravaginal rings (IVR) represent one such technology that has garnered attention based on the modality's success recently as a pre-exposure prophylaxis (PrEP) delivery option and its impact on reduction in HIV risk. AREAS COVERED : This article provides a synopsis of three IVR technologies in active clinical development for prevention of HIV, STI, and unintended pregnancy demonstrating advancements in terms of compatibility with a wide range of drug types with a focus on dapivirine-based silicone rings (International Partnership for Microbicides (IPM), tenofovir-based polyurethane rings (CONRAD), and pod-based rings (Oak Crest Institute of Science). EXPERT OPINION The goals of IVR research are to reduce burdens of HIV/STIs and unplanned pregnancies. Through the evolution of IVR technologies, the potential exists to trigger integration of healthcare services through formulation of products with multiple indications.
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Affiliation(s)
- Thesla Palanee-Phillips
- Faculty of Health Sciences, Wits Reproductive Health and HIV Institute, University of the Witwatersrand, Johannesburg, South Africa
| | - Marc M Baum
- Oak Crest Institute of Science, Monrovia, CA, USA
| | - John A Moss
- Oak Crest Institute of Science, Monrovia, CA, USA
| | | | - Jeremy Nuttall
- International Partnership for Microbicides, Silver Spring, MD, USA
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Menéndez-Arias L, Delgado R. Update and latest advances in antiretroviral therapy. Trends Pharmacol Sci 2021; 43:16-29. [PMID: 34742581 DOI: 10.1016/j.tips.2021.10.004] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 10/01/2021] [Accepted: 10/05/2021] [Indexed: 12/27/2022]
Abstract
Since the first cases of AIDS appeared in 1981, human immunodeficiency virus type 1 (HIV-1) infection has reached pandemic proportions. Forty years later, research has led to the approval of more than 30 antiretroviral drugs, while combination therapies have turned HIV-1 infection into a chronic, but manageable disease. Still, drug toxicity and acquired and transmitted drug resistance remain as major threats to therapy success. In this review, we provide an overview on currently available anti-HIV drugs and the latest developments in antiretroviral therapy, focused on new antiretroviral agents acting on known and unexploited antiviral targets, prevention therapies aimed to improve available drug combinations, and research on new long-acting therapies, particularly those involving novel drug candidates such as lenacapavir or islatravir.
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Affiliation(s)
- Luis Menéndez-Arias
- Centro de Biología Molecular 'Severo Ochoa', Consejo Superior de Investigaciones Científicas y Universidad Autónoma de Madrid, 28049 Madrid, Spain.
| | - Rafael Delgado
- Laboratory of Molecular Microbiology. Instituto de Investigación Hospital 12 de Octubre (Imas12) and The University Complutense School of Medicine, Madrid, Spain.
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Zaongo SD, Wang Y, Ma P, Song FZ, Chen YK. Selective elimination of host cells harboring replication-competent human immunodeficiency virus reservoirs: a promising therapeutic strategy for HIV cure. Chin Med J (Engl) 2021; 134:2776-2787. [PMID: 34620750 PMCID: PMC8667983 DOI: 10.1097/cm9.0000000000001797] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Indexed: 10/27/2022] Open
Abstract
ABSTRACT Many seminal advances have been made in human immunodeficiency virus (HIV)/AIDS research over the past four decades. Treatment strategies, such as gene therapy and immunotherapy, are yielding promising results to effectively control HIV infection. Despite this, a cure for HIV/AIDS is not envisioned in the near future. A recently published academic study has raised awareness regarding a promising alternative therapeutic option for HIV/AIDS, referred to as "selective elimination of host cells capable of producing HIV" (SECH). Similar to the "shock and kill strategy," the SECH approach requires the simultaneous administration of drugs targeting key mechanisms in specific cells to efficiently eliminate HIV replication-competent cellular reservoirs. Herein, we comprehensively review the specific mechanisms targeted by the SECH strategy. Briefly, the suggested cocktail of drugs should contain (i) latency reversal agents to promote the latency reversal process in replication-competent reservoir cells, (ii) pro-apoptotic and anti-autophagy drugs to induce death of infected cells through various pathways, and finally (iii) drugs that eliminate new cycles of infection by prevention of HIV attachment to host cells, and by HIV integrase inhibitor drugs. Finally, we discuss three major challenges that are likely to restrict the application of the SECH strategy in HIV/AIDS patients.
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Affiliation(s)
- Silvere D. Zaongo
- Division of Infectious Diseases, Chongqing Public Health Medical Center, Chongqing 400036, China
- College of Basic Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Yue Wang
- Institute for Medical Device Standardization Administration; National Institutes for Food and Drug Control, Beijing 100050, China
| | - Ping Ma
- Department of Infectious Diseases, Tianjin Second People Hospital, Tianjin 300192, China
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Fang-Zhou Song
- College of Basic Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Yao-Kai Chen
- Division of Infectious Diseases, Chongqing Public Health Medical Center, Chongqing 400036, China
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Krovi SA, Johnson LM, Luecke E, Achilles SL, van der Straten A. Advances in long-acting injectables, implants, and vaginal rings for contraception and HIV prevention. Adv Drug Deliv Rev 2021; 176:113849. [PMID: 34186143 DOI: 10.1016/j.addr.2021.113849] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/15/2021] [Accepted: 06/22/2021] [Indexed: 12/22/2022]
Abstract
Worldwide, women face compounding reproductive health risks, including human immunodeficiency virus (HIV), sexually-transmitted infections (STIs), and unintended pregnancy. Multipurpose prevention technologies (MPTs) offer combined protection against these overlapping risks in singular prevention products that offer potential for simplified use, lower burden, higher acceptability, and increased public health benefits. Over the past decade, substantial progress has been made in development of extended-release MPTs, which have further potential to grant sexual and reproductive health autonomy to women globally and to offer choice for women to accommodate varying needs during their reproductive lives. Here, we highlight the advances made in injectable, implant, and ring delivery forms, and the importance of incorporating end-user preferences early in the research and development of these products.
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Affiliation(s)
| | | | - Ellen Luecke
- Women's Global Health Imperative, RTI International, Berkeley, CA, USA
| | - Sharon L Achilles
- University of Pittsburgh, School of Medicine, Department of Obstetrics, Gynecology and Reproductive Sciences, Pittsburgh, PA, USA; Magee-Womens Research Institute, Pittsburgh, PA, USA
| | - Ariane van der Straten
- Center for AIDS Prevention Studies, Dept of Medicine, University of California San Francisco, San Francisco, CA, USA; ASTRA Consulting, Kensington, CA, USA
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Menéndez-Arias L, Martín-Alonso S, Frutos-Beltrán E. An Update on Antiretroviral Therapy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1322:31-61. [PMID: 34258736 DOI: 10.1007/978-981-16-0267-2_2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Human immunodeficiency virus (HIV) infection and acquired immune deficiency syndrome (AIDS) still claim many lives across the world. However, research efforts during the last 40 years have led to the approval of over 30 antiretroviral drugs and the introduction of combination therapies that have turned HIV infection into a chronic but manageable disease. In this chapter, we provide an update on current available drugs and treatments, as well as future prospects towards reducing pill burden and developing long-acting drugs and novel antiretroviral therapies. In addition, we summarize efforts to cure HIV, including pharmaceutical strategies focused on the elimination of the virus.
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Affiliation(s)
- Luis Menéndez-Arias
- Centro de Biología Molecular "Severo Ochoa", Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain.
| | - Samara Martín-Alonso
- Centro de Biología Molecular "Severo Ochoa", Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain
| | - Estrella Frutos-Beltrán
- Centro de Biología Molecular "Severo Ochoa", Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid, Madrid, Spain
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Abstract
PURPOSE OF REVIEW Although tremendous successes in HIV treatment and prevention have occurred in the past decade, existing HIV prevention options are inadequate, unacceptable or inaccessible to many. Topical antiretroviral-based preexposure prophylaxis (PrEP) options may offer effective, long-acting prevention to those who do not desire systemic exposure to anti-HIV drugs or who want greater control over their own prevention. RECENT FINDINGS Among long-acting topical PrEP agents, the dapivirine vaginal ring has advanced the furthest in product development; recent studies have shown high adherence and persistence and evidence of HIV protection in open-label studies as well as a well tolerated safety profile, across the life cycle in women. A range of other long-acting topical PrEP products for vaginal or rectal drug delivery are under development. Rigorous end-user research has explored how to develop products that are behaviorally congruent for the population at risk and has shown that no single product option will be desired by all, but rather different options will achieve the greatest prevention coverage. SUMMARY Topically delivered, long-acting antiretroviral PrEP options are being designed to align with user preferences and lifestyles, providing the potential to more effectively expand the HIV prevention method mix and use and achieve an important impact on HIV globally.
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McGowan IM, Tzakis N, Kosak B, Korczak B, Engstrom J, Tomaszewska-Kiecana M, Hartley O. Evaluation of the Safety, Acceptability, and Pharmacokinetic Profile of a Gel Formulation of OB-002 in Healthy Volunteers. AIDS Res Hum Retroviruses 2021; 37:453-460. [PMID: 33749321 DOI: 10.1089/aid.2021.0010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OB-002 is an extremely potent CCR5 antagonist that has previously been shown to completely block transmission in a nonhuman primate model of HIV infection. The purpose of this study was to characterize the safety, acceptability, and pharmacokinetic profile of a gel formulation of OB-002 (OB-002H). The trial had two phases, an open label single dose exposure (vaginal and rectal) and a randomized placebo controlled multiple dose phase during which study participants received five vaginal daily doses of OB-002H gel or matched placebo in a 2:1 ratio. Serum OB-002 levels were quantified at multiple time points up to 24 h after the first dose. A total of thirty female and male participants were enrolled in the study (12 in the single dose phase and 18 in the multiple dose phase). All adverse events were Grade 1 or 2, and the majority was unrelated to study product. Only two product-related transient Grade 2 events (both vulval dryness) occurred in the study, both in the OB-002H gel randomized multiple dose arm. All colposcopic and anoscopic assessments following product exposure were normal. There was no evidence of systemic absorption of OB-002. Overall, the product had a positive acceptability profile, and most study participants would consider using the product for protection against HIV or pregnancy. Future studies are needed to assess the extended safety and acceptability of OB-002H gel in sexually active participants. Clinical Trial Registration Number: NCT04791007.
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Affiliation(s)
- Ian Michael McGowan
- Orion Biotechnology Polska, Krakow, Poland
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | | | | | | | | | - Oliver Hartley
- Orion Biotechnology, Ottawa, Canada
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
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Carson L, Merkatz R, Martinelli E, Boyd P, Variano B, Sallent T, Malcolm RK. The Vaginal Microbiota, Bacterial Biofilms and Polymeric Drug-Releasing Vaginal Rings. Pharmaceutics 2021; 13:pharmaceutics13050751. [PMID: 34069590 PMCID: PMC8161251 DOI: 10.3390/pharmaceutics13050751] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/14/2021] [Accepted: 05/18/2021] [Indexed: 12/26/2022] Open
Abstract
The diversity and dynamics of the microbial species populating the human vagina are increasingly understood to play a pivotal role in vaginal health. However, our knowledge about the potential interactions between the vaginal microbiota and vaginally administered drug delivery systems is still rather limited. Several drug-releasing vaginal ring products are currently marketed for hormonal contraception and estrogen replacement therapy, and many others are in preclinical and clinical development for these and other clinical indications. As with all implantable polymeric devices, drug-releasing vaginal rings are subject to surface bacterial adherence and biofilm formation, mostly associated with endogenous microorganisms present in the vagina. Despite more than 50 years since the vaginal ring concept was first described, there has been only limited study and reporting around bacterial adherence and biofilm formation on rings. With increasing interest in the vaginal microbiome and vaginal ring technology, this timely review article provides an overview of: (i) the vaginal microbiota, (ii) biofilm formation in the human vagina and its potential role in vaginal dysbiosis, (iii) mechanistic aspects of biofilm formation on polymeric surfaces, (iv) polymeric materials used in the manufacture of vaginal rings, (v) surface morphology characteristics of rings, (vi) biomass accumulation and biofilm formation on vaginal rings, and (vii) regulatory considerations.
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Affiliation(s)
- Louise Carson
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (L.C.); (P.B.)
| | - Ruth Merkatz
- Population Council, One Dag Hammarskjold Plaza, New York, NY 10017, USA; (R.M.); (E.M.); (B.V.); (T.S.)
| | - Elena Martinelli
- Population Council, One Dag Hammarskjold Plaza, New York, NY 10017, USA; (R.M.); (E.M.); (B.V.); (T.S.)
| | - Peter Boyd
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (L.C.); (P.B.)
| | - Bruce Variano
- Population Council, One Dag Hammarskjold Plaza, New York, NY 10017, USA; (R.M.); (E.M.); (B.V.); (T.S.)
| | - Teresa Sallent
- Population Council, One Dag Hammarskjold Plaza, New York, NY 10017, USA; (R.M.); (E.M.); (B.V.); (T.S.)
| | - Robert Karl Malcolm
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (L.C.); (P.B.)
- Correspondence:
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Boyd P, Merkatz R, Variano B, Malcolm RK. The ins and outs of drug-releasing vaginal rings: a literature review of expulsions and removals. Expert Opin Drug Deliv 2020; 17:1519-1540. [DOI: 10.1080/17425247.2020.1798927] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Peter Boyd
- School of Pharmacy, Queen’s University Belfast, Belfast, UK
| | - Ruth Merkatz
- Population Council, One Dag Hammarskjold Plaza, New York, NY, USA
| | - Bruce Variano
- Population Council, One Dag Hammarskjold Plaza, New York, NY, USA
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Abstract
PURPOSE OF THE REVIEW The complex multistep life cycle of HIV allows it to proliferate within the host and integrate its genome in to the host chromosomal DNA. This provirus can remain dormant for an indefinite period. The process of integration, governed by integrase (IN), is highly conserved across the Retroviridae family. Hence, targeting integration is not only expected to block HIV replication but may also reveal new therapeutic strategies to treat HIV as well as other retrovirus infections. RECENT FINDINGS HIV integrase (IN) has gained attention as the most promising therapeutic target as there are no equivalent homologues of IN that has been discovered in humans. Although current nano-formulated long-acting IN inhibitors have demonstrated the phenomenal ability to block HIV integration and replication with extraordinary half-life, they also have certain limitations. In this review, we have summarized the current literature on clinically established IN inhibitors, their mechanism of action, the advantages and disadvantages associated with their therapeutic application, and finally current HIV cure strategies using these inhibitors.
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Liu AY, Zhang J, Anderson PL, Wagner T, Pan Z, Peda M, Gomez K, Beamer M, Jacobson C, Strizki J, Dezzutti CS, Piper JM. Phase 1 Pharmacokinetic Trial of 2 Intravaginal Rings Containing Different Dose Strengths of Vicriviroc (MK-4176) and MK-2048. Clin Infect Dis 2020; 68:1129-1135. [PMID: 30289444 DOI: 10.1093/cid/ciy652] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 09/18/2018] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Vaginal rings (VRs) are a promising approach for sustained delivery of antiretroviral (ARV) medication to prevent human immunodeficiency virus (HIV) infection in women. Combination ARV VRs could increase efficacy. METHODS MTN-028, a phase 1 trial in 19 HIV-uninfected women, evaluated 2 VRs containing vicriviroc (VCV) and MK-2048. Participants were randomized 2:1 to a low-dose (VCV, 91 mg; MK-2048, 10 mg) or original-dose (VCV, 182 mg; MK-2048, 30 mg) ring used for 28 days. Safety was assessed by documenting adverse events (AEs). Drug concentrations were evaluated in plasma, cervicovaginal fluid (CVF), and cervical tissue samples. RESULTS All AEs reported were grade 1 or 2, with no statistically significant differences in related genitourinary AEs or grade ≥2 AEs observed between arms (P = >.99). VCV/MK-2048 concentrations rose rapidly, with higher plasma area under the concentration-time curve (AUC) in the original-dose arm (geometric mean ratio, 3.29 for VCV and 1.49 for MK-2048) and similar AUCs across arms for CVF samples. Cervical tissue concentrations were higher in the original-dose arm (geometric mean ratio, 7.94 for VCV and 6.45 for MK-2048), with greater drug released based on residual drug levels. Plasma and CVF concentrations for both drugs fell rapidly after ring removal. CONCLUSIONS In this first study evaluating 2 doses of a combination VCV/MK-2048 VR, both rings were found to be safe and well tolerated. VCV and MK-2048 were detectable in plasma, CVF, and cervical tissue samples, and drug release and plasma drug exposure were higher for the original-dose than for the low-dose ring.
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Affiliation(s)
- Albert Y Liu
- Bridge HIV, San Francisco Department of Public Health, California
| | - Jingyang Zhang
- Statistical Center for HIV/AIDS Research & Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Peter L Anderson
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora
| | - Theresa Wagner
- Bridge HIV, San Francisco Department of Public Health, California
| | - Zhenyu Pan
- Statistical Center for HIV/AIDS Research & Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Melissa Peda
- Statistical Center for HIV/AIDS Research & Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | | | - May Beamer
- Magee-Womens Research Institute, Pittsburgh, Pennsylvania
| | - Cindy Jacobson
- Magee-Womens Research Institute, Pittsburgh, Pennsylvania
| | | | - Charlene S Dezzutti
- Magee-Womens Research Institute, Pittsburgh, Pennsylvania.,School of Medicine, University of Pittsburgh, Pennsylvania
| | - Jeanna M Piper
- National Institutes of Health, Division of AIDS, Bethesda, Maryland
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A Mixed-Methods Study Examining Adherence to and Acceptability of Intravaginal Rings for HIV Prevention: Behavioral Results of MTN-027. AIDS Behav 2020; 24:607-616. [PMID: 30877580 DOI: 10.1007/s10461-019-02457-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Intravaginal rings (IVR) containing antiretroviral drugs are a promising method for HIV prevention. We triangulated quantitative and qualitative assessments to evaluate the acceptability of four IVRs used continuously for 28 days as part of a Phase I trial (N = 48 HIV-negative women; ages 18-45). Adherence was high throughout the trial, yet 30% of participants reported involuntary IVR expulsions followed by re-insertion. Most participants (93.6%) felt comfortable with the IVR being inside their body. Participants reported liking the IVR more (36.2%) or the same amount (55.3%) since starting the study. When given the option of choosing between the IVR and/or a male condom for HIV-prevention, most reported preferring the IVR (n = 29, 63.0%), and over a quarter of the sample reported liking them equally (n = 12, 26.1%). We observed no differences in IVR acceptability across the study arms. High adherence and acceptability underscores the promise of an IVR as a female-controlled, sustained mechanism for HIV prevention.
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Clinical testing of antiretroviral drugs as future prevention against vaginal and rectal transmission of HIV infection - a review of currently available results. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2019; 69:297-319. [PMID: 31259738 DOI: 10.2478/acph-2019-0030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/31/2019] [Indexed: 01/19/2023]
Abstract
The original purpose of vaginally applied microbicides was to slow down the HIV epidemic among the population until an effective vaccination was developed. Nowadays, antiretrovirals applied in the form of gels or vaginal rings are considered most prominent in this field and are tested via vaginal or, rarely, rectal applications in numerous clinical studies (9 different antiretroviral drugs in 33 clinical studies, especially in Africa). Only tenofovir (1 % gel) and dapivirine (25 mg in vaginal ring) progressed into the phase III clinical testing. Their efficiency depended on the user´s strict adherence to the application regimen (for tenofovir 54 %, for dapivirine 61 % in participants over 25 years of age). Despite this, they are expected to be important and effective tools of preventive medicine in the near future. This review summarizes the results obtained during long-term clinical testing (2005-2018) of antiretroviral drugs against vaginal and rectal transmission of HIV infection.
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Brooks KM, Sherman EM, Egelund EF, Brotherton A, Durham S, Badowski ME, Cluck DB. Integrase Inhibitors: After 10 Years of Experience, Is the Best Yet to Come? Pharmacotherapy 2019; 39:576-598. [PMID: 30860610 DOI: 10.1002/phar.2246] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The era of the integrase strand transfer inhibitors (INSTIs) for the treatment of human immunodeficiency virus (HIV) infection began with raltegravir in 2007. Since that time, several other INSTIs have been introduced including elvitegravir, dolutegravir, and, most recently, bictegravir, that have shown great utility as part of antiretroviral regimens in both treatment-naive and treatment-experienced patients. At present, antiretroviral guidelines fully endorse the INSTI class as part of all first-line treatment regimens. After 10 years of experience with INSTIs, newer agents are on the horizon such as cabotegravir and MK-2048 for potential use as either HIV pre-exposure prophylaxis or maintenance therapy. This review provides a brief overview of the INSTI class including agents currently available and those still in development, reviews available data from both completed and ongoing clinical trials, and outlines simplification strategies using INSTIs.
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Affiliation(s)
- Kristina M Brooks
- Department of Pharmaceutical Sciences, University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, Colorado
| | - Elizabeth M Sherman
- Department of Pharmacy Practice, Nova Southeastern University, Fort Lauderdale, Florida
| | - Eric F Egelund
- Department of Pharmacotherapy & Translational Research, University of Florida College of Pharmacy, Jacksonville, Florida
| | - Amy Brotherton
- Department of Pharmacy, The Miriam Hospital, Providence, Rhode Island
| | - Spencer Durham
- Department Pharmacy Practice, Auburn University Harrison School of Pharmacy, Auburn, Alabama
| | - Melissa E Badowski
- Department of Pharmacy Practice, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois
| | - David B Cluck
- Department of Pharmacy Practice, East Tennessee State University Gatton College of Pharmacy, Johnson City, Tennessee
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