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Dekker JG, Klaver B, Berkhout B, Das AT. Reverse transcription of HIV-1 2-LTR circle transcripts does frequently cause 3'-polypurine tract mutations implicated in dolutegravir resistance. J Virol 2024; 98:e0033524. [PMID: 38785421 PMCID: PMC11237796 DOI: 10.1128/jvi.00335-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024] Open
Affiliation(s)
- José G. Dekker
- Medical Microbiology and Infection Prevention, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, the Netherlands
| | - Bep Klaver
- Medical Microbiology and Infection Prevention, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, the Netherlands
| | - Ben Berkhout
- Medical Microbiology and Infection Prevention, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, the Netherlands
| | - Atze T. Das
- Medical Microbiology and Infection Prevention, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Immunology and Infectious Diseases, Amsterdam, the Netherlands
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Makonokaya L, Maida A, Kalitera LU, Wang A, Kapanda L, Kayira D, Bottoman M, Nkhoma H, Dunga S, Joaki Z, Chamanga R, Nkanaunena K, Hrapcak S, Nyirenda R, Chiwandira B, Maulidi M, Woelk G, Machekano R, Maphosa T. Early Effects of Scaling Up Dolutegravir-Based ARV Regimens Among Children Living with HIV in Malawi. AIDS Behav 2024; 28:2148-2155. [PMID: 38615099 PMCID: PMC11161418 DOI: 10.1007/s10461-024-04312-3] [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] [Accepted: 03/04/2024] [Indexed: 04/15/2024]
Abstract
Viral suppression (VS) in children has remained suboptimal compared to that in adults. We evaluated the impact of transitioning children weighing < 20 kg to a pediatric formulation of dolutegravir (pDTG) on VS in Malawi. We analyzed routine retrospective program data from electronic medical record systems pooled across 169 healthcare facilities in Malawi supported by the Elizabeth Glaser Pediatric AIDS Foundation (EGPAF). We included children who weighed < 20 kg and received antiretroviral therapy (ART) between July 2021-June 2022. Using descriptive statistics, we summarized demographic and clinical characteristics, ART regimens, ART adherence, and VS. We used logistic regression to identify factors associated with post-transition VS. A total of 2468 Children Living with HIV (CLHIV) were included, 55.3% of whom were < 60 months old. Most (83.8%) had initiated on non-DTG-based ART; 71.0% of these had a viral load (VL) test result before transitioning to pDTG, and 62.5% had VS. Nearly all (99.9%) CLHIV transitioned to pDTG-based regimens. Six months after the transition, 52.7% had good ART adherence, and 38.6% had routine VL testing results; 81.7% achieved VS. Post-transition VS was associated with good adherence and pre-transition VS: adjusted odds ratios of 2.79 (95% CI 1.65-4.71), p < 0.001 and 5.32 (95% CI 3.23-9.48), p < 0.001, respectively. After transitioning to pDTG, VS was achieved in most children tested within the first 6 months. However, adherence remained suboptimal post-transition and VL testing at 6 months was limited. Interventions to improve VL testing and enhance ART adherence are still needed in CLHIV on pDTG-based regimens.
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Affiliation(s)
| | - Alice Maida
- U. S. Centers for Disease Control and Prevention, Division of Global HIV and TB, Lilongwe, Malawi
| | | | - Alice Wang
- U. S. Centers for Disease Control and Prevention, Division of Global HIV and TB, Lilongwe, Malawi
| | - Lester Kapanda
- Elizabeth Glaser Pediatric AIDS Foundation, Lilongwe, Malawi
| | - Dumbani Kayira
- U. S. Centers for Disease Control and Prevention, Division of Global HIV and TB, Lilongwe, Malawi
| | | | - Harrid Nkhoma
- Elizabeth Glaser Pediatric AIDS Foundation, Lilongwe, Malawi
| | - Shalom Dunga
- Elizabeth Glaser Pediatric AIDS Foundation, Lilongwe, Malawi
| | - Zuze Joaki
- Elizabeth Glaser Pediatric AIDS Foundation, Lilongwe, Malawi
| | - Rachel Chamanga
- Elizabeth Glaser Pediatric AIDS Foundation, Lilongwe, Malawi
| | - Kondwani Nkanaunena
- U. S. Centers for Disease Control and Prevention, Division of Global HIV and TB, Lilongwe, Malawi
| | - Susan Hrapcak
- U. S. Centers for Disease Control and Prevention, Atlanta, USA
| | - Rose Nyirenda
- Department of HIV and AIDS, Ministry of Health, Lilongwe, Malawi
| | - Brown Chiwandira
- Department of HIV and AIDS, Ministry of Health, Lilongwe, Malawi
| | - Martin Maulidi
- Department of HIV and AIDS, Ministry of Health, Lilongwe, Malawi
| | - Godfrey Woelk
- Elizabeth Glaser Pediatric AIDS Foundation, Washington, DC, USA
| | | | - Thulani Maphosa
- Elizabeth Glaser Pediatric AIDS Foundation, Lilongwe, Malawi
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Deng M, Chen N, Lao X, Wang X, Fu J, Xing L, Zhao H. Reasons, Efficacy and Safety of Switching to Dolutegravir-Based Regimens Among Virologically Suppressed PLWH: A Retrospective Cohort Study of 96 Weeks. Infect Drug Resist 2024; 17:1571-1582. [PMID: 38681898 PMCID: PMC11055531 DOI: 10.2147/idr.s451346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 04/12/2024] [Indexed: 05/01/2024] Open
Abstract
Purpose The study aimed to explore the reasons, efficacy, and safety of switching to dolutegravir (DTG) based regimens in virologically suppressed people living with HIV (PLWH) in tertiary hospitals in China. Therefore, the study could provide a valuable reference for the rational clinical use of DTG. Methods PLWH's basic information, treatment details, and reasons for switching were collected, through the electrical clinical medical record system and telephone follow-up. Data included the proportion of PLWH with HIV RNA <50 copies/mL, changes in immunological indicators, and metabolic metrics at week 48 and week 96. Results 319 PLWH were included in the analysis. The three major reasons for switching were neurological toxicity (16.30%), simplification (13.79%), and renal toxicity (11.29%). Our study showed high rates of virologic suppression in the per-protocol analysis (week 48: 99.69%; week 96: 99.29%) after switching to DTG-based regimens. The median CD4+ T cell count increased from 579 cells/μL (IQR 420.5-758) to 642 cells/μL (IQR 466.5-854) at week 96 (p<0.0001). An improvement was observed in liver function (ALT: p<0.0001; AST: p<0.0001) and fasting glucose (p<0.0001). However, there was an elevation in creatinine (Cr) (p<0.0001) and a slight decrease in the estimated glomerular filtration rate (eGFR) (p<0.0001). Regarding lipid profile, triglyceride (TG) levels declined, while total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) levels increased. Further analysis revealed that the increase in TC and LDL-C was associated with the withdrawal of tenofovir disoproxil fumarate (TDF). This observed increase in lipid parameters only concerned the PLWH who switched from a TDF-containing regimen to a non-TDF regimen. Conclusion This study confirmed the virologic efficacy of switching to DTG-based regimens in virologically suppressed PLWH over a 96-week period. The findings also expanded the evidence of immune reconstitution and metabolic safety associated with this switch.
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Affiliation(s)
- Meiju Deng
- Clinical Center for HIV/AIDS, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, People’s Republic of China
| | - Na Chen
- Clinical Center for HIV/AIDS, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, People’s Republic of China
| | - Xiaojie Lao
- Clinical Center for HIV/AIDS, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, People’s Republic of China
| | - Xiaolei Wang
- Clinical Center for HIV/AIDS, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, People’s Republic of China
| | - Jiantao Fu
- Clinical Center for HIV/AIDS, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, People’s Republic of China
| | - Lulu Xing
- Clinical Center for HIV/AIDS, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, People’s Republic of China
| | - Hongxin Zhao
- Clinical Center for HIV/AIDS, Beijing Ditan Hospital, Capital Medical University, Beijing, 100015, People’s Republic of China
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Abimbola Salubi C, Abbo HS, Jahed N, Titinchi S. Medicinal chemistry perspectives on the development of piperazine-containing HIV-1 inhibitors. Bioorg Med Chem 2024; 99:117605. [PMID: 38246116 DOI: 10.1016/j.bmc.2024.117605] [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: 09/13/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 01/23/2024]
Abstract
The Human immunodeficiency virus (HIV) is the causative agent of acquired immunodeficiency syndrome (AIDS), one of the most perilous diseases known to humankind. A 2023 estimate put the number of people living with HIV around 40 million worldwide, with the majority benefiting from various antiretroviral therapies. Consequently, the urgent need for the development of effective drugs to combat this virus cannot be overstated. In the realm of medicinal and organic chemistry, the synthesis and identification of novel compounds capable of inhibiting HIV enzymes at different stages of their life cycle are of paramount importance. Notably, the spotlight is on the progress made in enhancing the potency of HIV inhibitors through the use of piperazine-based compounds. Multiple studies have revealed that the incorporation of a piperazine moiety results in a noteworthy enhancement of anti-HIV activity. The piperazine ring assumes a pivotal role in shaping the pharmacophore responsible for inhibiting HIV-1 at critical stage, including attachment, reverse transcription, integration, and protease activity. This review also sheds light on the various opportunities that can be exploited to develop effective antiretroviral targets and eliminate latent HIV reservoirs. The advancement of highly potent analogues in HIV inhibitor research has been greatly facilitated by contemporary medicinal strategies, including molecular/fragment hybridization, structure-based drug design, and bioisosterism. These techniques have opened up new avenues for the development of compounds with enhanced efficacy in combating the virus.
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Affiliation(s)
- Christiana Abimbola Salubi
- Department of Chemistry, Faculty of Natural Sciences, University of the Western Cape, Cape Town, South Africa
| | - Hanna S Abbo
- Department of Chemistry, Faculty of Natural Sciences, University of the Western Cape, Cape Town, South Africa
| | - Nazeeen Jahed
- Department of Chemistry, Faculty of Natural Sciences, University of the Western Cape, Cape Town, South Africa
| | - Salam Titinchi
- Department of Chemistry, Faculty of Natural Sciences, University of the Western Cape, Cape Town, South Africa.
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Foster EG, Sillman B, Liu Y, Summerlin M, Kumar V, Sajja BR, Cassidy AR, Edagwa B, Gendelman HE, Bade AN. Long-acting dolutegravir formulations prevent neurodevelopmental impairments in a mouse model. Front Pharmacol 2023; 14:1294579. [PMID: 38149054 PMCID: PMC10750158 DOI: 10.3389/fphar.2023.1294579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/28/2023] [Indexed: 12/28/2023] Open
Abstract
The World Health Organization has recommended dolutegravir (DTG) as a preferred first-line treatment for treatment naive and experienced people living with human immunodeficiency virus type one (PLWHIV). Based on these recommendations 15 million PLWHIV worldwide are expected to be treated with DTG regimens on or before 2025. This includes pregnant women. Current widespread use of DTG is linked to the drug's high potency, barrier to resistance, and cost-effectiveness. Despite such benefits, potential risks of DTG-linked fetal neurodevelopmental toxicity remain a concern. To this end, novel formulation strategies are urgently needed in order to maximize DTG's therapeutic potentials while limiting adverse events. In regard to potential maternal fetal toxicities, we hypothesized that injectable long-acting nanoformulated DTG (NDTG) could provide improved safety by reducing drug fetal exposures compared to orally administered native drug. To test this notion, we treated pregnant C3H/HeJ mice with daily oral native DTG at a human equivalent dosage (5 mg/kg; n = 6) or vehicle (control; n = 8). These were compared against pregnant mice injected with intramuscular (IM) NDTG formulations given at 45 (n = 3) or 25 (n = 4) mg/kg at one or two doses, respectively. Treatment began at gestation day (GD) 0.5. Magnetic resonance imaging scanning of live dams at GD 17.5 was performed to obtain T1 maps of the embryo brain to assess T1 relaxation times of drug-induced oxidative stress. Significantly lower T1 values were noted in daily oral native DTG-treated mice, whereas comparative T1 values were noted between control and NDTG-treated mice. This data reflected prevention of DTG-induced oxidative stress when delivered as NDTG. Proteomic profiling of embryo brain tissues harvested at GD 17.5 demonstrated reductions in oxidative stress, mitochondrial impairments, and amelioration of impaired neurogenesis and synaptogenesis in NDTG-treated mice. Pharmacokinetic (PK) tests determined that both daily oral native DTG and parenteral NDTG achieved clinically equivalent therapeutic plasma DTG levels in dams (4,000-6,500 ng/mL). Importantly, NDTG led to five-fold lower DTG concentrations in embryo brain tissues compared to daily oral administration. Altogether, our preliminary work suggests that long-acting drug delivery can limit DTG-linked neurodevelopmental deficits.
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Affiliation(s)
- Emma G. Foster
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Brady Sillman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Yutong Liu
- Department of Radiology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Micah Summerlin
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Vikas Kumar
- Department of Genetics, Cell Biology, and Anatomy, University of Nebraska Medical Center, Omaha, NE, United States
| | - Balasrinivasa R. Sajja
- Department of Radiology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Adam R. Cassidy
- Departments of Psychiatry and Psychology & Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, United States
| | - Benson Edagwa
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Howard E. Gendelman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, United States
| | - Aditya N. Bade
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
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Ferrer P, Ramos V, Puente MI, Afani A. Preliminary report of transmitted drug resistance to integrase strand chain transfer inhibitors in treatment-naïve HIV infected patients. Diagn Microbiol Infect Dis 2023; 107:116083. [PMID: 37778156 DOI: 10.1016/j.diagmicrobio.2023.116083] [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: 06/08/2023] [Revised: 08/28/2023] [Accepted: 09/04/2023] [Indexed: 10/03/2023]
Abstract
Transmitted Resistance exists in a newly diagnosed person who has not yet started their treatment. Our objective was to obtain a profile of HIV-1 resistance to integrase inhibitors in newly diagnosed treatment-naïve patients. Fifty people newly diagnosed with HIV-1 infection who had never received antiretroviral treatment were recruited. The complete integrase gene was amplified by nested RTPCR and the sequences obtained were analyzed with the ReCall and HIVdb v9.0. The overall prevalence transmitted due to mutations with some impact on integrase strand transfer inhibitors (INSTI) activity during the study period was 8%. The major E138K mutation was detected in only 1 patient and the secondary G163R mutation was detected in the other 3. The transmitted resistance for the first generation INSTI was 8% and for the second generation it was 0%. In Chile the resistance transmitted to INSTI is low and it is in according values detect in other part of the world.
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Affiliation(s)
- Pablo Ferrer
- Laboratorio de Medicina Molecular, Hospital Clínico Universidad de Chile, Santiago, Chile.
| | - Verónica Ramos
- Laboratorio de Medicina Molecular, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Maria Ignacia Puente
- Laboratorio de Medicina Molecular, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Alejandro Afani
- Laboratorio de Medicina Molecular, Hospital Clínico Universidad de Chile, Santiago, Chile
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7
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Aoko A, Pals S, Ngugi T, Katiku E, Joseph R, Basiye F, Kimanga D, Kimani M, Masamaro K, Ngugi E, Musingila P, Nganga L, Ondondo R, Makory V, Ayugi R, Momanyi L, Mambo B, Bowen N, Okutoyi S, Chun HM. Retrospective longitudinal analysis of low-level viremia among HIV-1 infected adults on antiretroviral therapy in Kenya. EClinicalMedicine 2023; 63:102166. [PMID: 37649807 PMCID: PMC10462863 DOI: 10.1016/j.eclinm.2023.102166] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 09/01/2023] Open
Abstract
Background HIV low-level viremia (LLV) (51-999 copies/mL) can progress to treatment failure and increase potential for drug resistance. We analyzed retrospective longitudinal data from people living with HIV (PLHIV) on antiretroviral therapy (ART) in Kenya to understand LLV prevalence and virologic outcomes. Methods We calculated rates of virologic suppression (≤50 copies/mL), LLV (51-999 copies/mL), virologic non-suppression (≥1000 copies/mL), and virologic failure (≥2 consecutive virologic non-suppression results) among PLHIV aged 15 years and older who received at least 24 weeks of ART during 2015-2021. We analyzed risk for virologic non-suppression and virologic failure using time-dependent models (each viral load (VL) <1000 copies/mL used to predict the next VL). Findings Of 793,902 patients with at least one VL, 18.5% had LLV (51-199 cp/mL 11.1%; 200-399 cp/mL 4.0%; and 400-999 cp/mL 3.4%) and 9.2% had virologic non-suppression at initial result. Among all VLs performed, 26.4% were LLV. Among patients with initial LLV, 13.3% and 2.4% progressed to virologic non-suppression and virologic failure, respectively. Compared to virologic suppression (≤50 copies/mL), LLV was associated with increased risk of virologic non-suppression (adjusted relative risk [aRR] 2.43) and virologic failure (aRR 3.86). Risk of virologic failure increased with LLV range (aRR 2.17 with 51-199 copies/mL, aRR 3.98 with 200-399 copies/mL and aRR 7.99 with 400-999 copies/mL). Compared to patients who never received dolutegravir (DTG), patients who initiated DTG had lower risk of virologic non-suppression (aRR 0.60) and virologic failure (aRR 0.51); similarly, patients who transitioned to DTG had lower risk of virologic non-suppression (aRR 0.58) and virologic failure (aRR 0.35) for the same LLV range. Interpretation Approximately a quarter of patients experienced LLV and had increased risk of virologic non-suppression and failure. Lowering the threshold to define virologic suppression from <1000 to <50 copies/mL to allow for earlier interventions along with universal uptake of DTG may improve individual and program outcomes and progress towards achieving HIV epidemic control. Funding No specific funding was received for the analysis. HIV program support was provided by the President's Emergency Plan for AIDS Relief (PEPFAR) through the United States Centers for Disease Control and Prevention (CDC).
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Affiliation(s)
- Appolonia Aoko
- U.S. Centers for Disease Control and Prevention (CDC), Division of Global HIV&TB, Center for Global Health, Nairobi, Kenya
| | - Sherri Pals
- U.S. Centers for Disease Control and Prevention (CDC), Division of Global HIV/TB, Center for Global Health, Atlanta, Georgia, USA
| | | | - Elizabeth Katiku
- U.S. Centers for Disease Control and Prevention (CDC), Division of Global HIV&TB, Center for Global Health, Nairobi, Kenya
| | - Rachael Joseph
- U.S. Centers for Disease Control and Prevention (CDC), Division of Global HIV&TB, Center for Global Health, Nairobi, Kenya
| | - Frank Basiye
- U.S. Centers for Disease Control and Prevention (CDC), Division of Global HIV&TB, Center for Global Health, Nairobi, Kenya
| | - Davies Kimanga
- U.S. Centers for Disease Control and Prevention (CDC), Division of Global HIV&TB, Center for Global Health, Nairobi, Kenya
| | - Maureen Kimani
- Ministry of Health Kenya, Division of Community Health, Nairobi, Kenya
| | - Kenneth Masamaro
- U.S. Centers for Disease Control and Prevention (CDC), Division of Global HIV&TB, Center for Global Health, Nairobi, Kenya
| | - Evelyn Ngugi
- U.S. Centers for Disease Control and Prevention (CDC), Division of Global HIV&TB, Center for Global Health, Nairobi, Kenya
| | - Paul Musingila
- U.S. Centers for Disease Control and Prevention (CDC), Division of Global HIV&TB, Center for Global Health, Nairobi, Kenya
| | - Lucy Nganga
- U.S. Centers for Disease Control and Prevention (CDC), Division of Global HIV&TB, Center for Global Health, Nairobi, Kenya
| | - Raphael Ondondo
- U.S. Centers for Disease Control and Prevention (CDC), Division of Global HIV&TB, Center for Global Health, Nairobi, Kenya
| | - Valeria Makory
- Ministry of Health Kenya, National AIDS & STI Control Program, Nairobi, Kenya
| | - Rose Ayugi
- Ministry of Health Kenya, National AIDS & STI Control Program, Nairobi, Kenya
| | - Lazarus Momanyi
- Ministry of Health Kenya, National AIDS & STI Control Program, Nairobi, Kenya
| | - Barbara Mambo
- Ministry of Health Kenya, National AIDS & STI Control Program, Nairobi, Kenya
| | - Nancy Bowen
- Ministry of Health Kenya, National Public Health Laboratory, Nairobi, Kenya
| | | | - Helen M. Chun
- U.S. Centers for Disease Control and Prevention (CDC), Division of Global HIV/TB, Center for Global Health, Atlanta, Georgia, USA
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Kamori D, Barabona G, Rugemalila J, Maokola W, Masoud SS, Mizinduko M, Sabasaba A, Ruhago G, Sambu V, Mushi J, Mgomella GS, Mcollogi JJ, Msafiri F, Mugusi S, Boniface J, Mutagonda R, Mlunde L, Amani D, Mboya E, Mahiti M, Rwebembera A, Ueno T, Pembe A, Njau P, Mutayoba B, Sunguya B. Emerging integrase strand transfer inhibitor drug resistance mutations among children and adults on ART in Tanzania: findings from a national representative HIV drug resistance survey. J Antimicrob Chemother 2023; 78:779-787. [PMID: 36680436 DOI: 10.1093/jac/dkad010] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 01/03/2023] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Despite the scale-up of ART and the rollout in Tanzania of dolutegravir, an integrase strand transfer inhibitor (INSTI), treatment success has not been fully realized. HIV drug resistance (HIVDR), including dolutegravir resistance, could be implicated in the notable suboptimal viral load (VL) suppression among HIV patients. OBJECTIVES To determine the prevalence and patterns of acquired drug resistance mutations (DRMs) among children and adults in Tanzania. METHODS A national cross-sectional HIVDR survey was conducted among 866 children and 1173 adults. Genotyping was done on dried blood spot and/or plasma of participants with high HIV VL (≥1000 copies/mL). HIV genes (reverse transcriptase, protease and integrase) were amplified by PCR and directly sequenced. The Stanford HIVDR Database was used for HIVDR interpretation. RESULTS HIVDR genotyping was performed on blood samples from 137 participants (92 children and 45 adults) with VL ≥ 1000 copies/mL. The overall prevalence of HIV DRMs was 71.5%, with DRMs present in 78.3% of children and 57.8% of adults. Importantly, 5.8% of participants had INSTI DRMs including major DRMs: Q148K, E138K, G118R, G140A, T66A and R263K. NNRTI, NRTI and PI DRMs were also detected in 62.8%, 44.5% and 8% of participants, respectively. All the participants with major INSTI DRMs harboured DRMs targeting NRTI backbone drugs. CONCLUSIONS More than 7 in 10 patients with high HIV viraemia in Tanzania have DRMs. The early emergence of dolutegravir resistance is of concern for the efficacy of the Tanzanian ART programme.
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Affiliation(s)
- Doreen Kamori
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania
| | - Godfrey Barabona
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania.,Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Japan
| | - Joan Rugemalila
- Internal Medicine Department, Muhimbili National Hospital, Dar es Salaam, Tanzania
| | - Werner Maokola
- National AIDS Control Programme, Directorate of Preventive Services, Ministry of Health, Dodoma, Tanzania
| | - Salim S Masoud
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania
| | - Mucho Mizinduko
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania
| | - Amon Sabasaba
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania
| | - George Ruhago
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania
| | - Veryeh Sambu
- National AIDS Control Programme, Directorate of Preventive Services, Ministry of Health, Dodoma, Tanzania
| | - Jeremiah Mushi
- National AIDS Control Programme, Directorate of Preventive Services, Ministry of Health, Dodoma, Tanzania
| | - George S Mgomella
- Division of Global HIV & Tuberculosis, US Centers for Disease Control and Prevention, Dar es Salaam, Tanzania
| | - James J Mcollogi
- National AIDS Control Programme, Directorate of Preventive Services, Ministry of Health, Dodoma, Tanzania
| | - Frank Msafiri
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania
| | - Sabina Mugusi
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania
| | - Jullu Boniface
- Management and Development for Health, Dar es Salaam, Tanzania
| | - Ritah Mutagonda
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania
| | - Linda Mlunde
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania
| | - Davis Amani
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania
| | - Erick Mboya
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania
| | - Macdonald Mahiti
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania
| | - Anath Rwebembera
- National AIDS Control Programme, Directorate of Preventive Services, Ministry of Health, Dodoma, Tanzania
| | - Takamasa Ueno
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania.,Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Japan
| | - Andrea Pembe
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania
| | - Prosper Njau
- National AIDS Control Programme, Directorate of Preventive Services, Ministry of Health, Dodoma, Tanzania
| | - Beatrice Mutayoba
- National AIDS Control Programme, Directorate of Preventive Services, Ministry of Health, Dodoma, Tanzania
| | - Bruno Sunguya
- Muhimbili University of Health and Allied Sciences, P.O. Box 650001, Dar es Salaam, Tanzania.,Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Japan
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Taoda Y, Sugiyama S, Seki T. New designs for HIV-1 integrase inhibitors: a patent review (2018-present). Expert Opin Ther Pat 2023; 33:51-66. [PMID: 36750766 DOI: 10.1080/13543776.2023.2178300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
INTRODUCTION Combination antiretroviral therapy (cART) has dramatically reduced morbidity and mortality of HIV-1-infected patients. Integrase strand transfer inhibitors (INSTIs) play an important role as a key drug in cART. The second-generation INSTIs are very potent, but due to the emergence of highly resistant viruses and the demand for more conveniently usable drugs, the development of 'third-generation' INSTIs and mechanistically different inhibitors is actively being pursued. AREAS COVERED This article reviews the patents (from 2018 to the present) for two classes of HIV-1 integrase inhibitors of INSTIs and integrase-LEDGF/p75 allosteric inhibitors (INLAIs). EXPERT OPINION Since the approval of the second-generation INSTI dolutegravir, the design of new INSTIs has been mostly focused on its scaffold, carbamoylpyridone (CAP). This CAP scaffold is used not only for HIV-1 INSTIs but also for drug discoveries targeting other viral enzymes. With the approval of cabotegravir as a regimen of long-acting injection in combination with rilpivirine, there is a growing need for longer-acting agents. INLAIs have been intensely studied by many groups but have yet to reach the market. However, INLAIs have recently been reported to also function as a latency promoting agent (LPA), indicating further development possibilities.
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Affiliation(s)
- Yoshiyuki Taoda
- Laboratory for Medicinal Chemistry Research, Shionogi Pharmaceutical Research Center, Shionogi & Co., Ltd, Toyonaka-shi, Japan
| | - Shuichi Sugiyama
- Laboratory for Medicinal Chemistry Research, Shionogi Pharmaceutical Research Center, Shionogi & Co., Ltd, Toyonaka-shi, Japan
| | - Takahiro Seki
- Laboratory for Medicinal Chemistry Research, Shionogi Pharmaceutical Research Center, Shionogi & Co., Ltd, Toyonaka-shi, Japan
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10
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van Zyl G, Jennings L, Kellermann T, Nkantsu Z, Cogill D, van Schalkwyk M, Spinelli M, Decloedt E, Orrell C, Gandhi M. Urine tenofovir-monitoring predicts HIV viremia in patients treated with high genetic-barrier regimens. AIDS 2022; 36:2057-2062. [PMID: 36305182 PMCID: PMC9623472 DOI: 10.1097/qad.0000000000003354] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Access to viral load measurements is constrained in resource-limited settings. A lateral flow urine tenofovir (TFV) rapid assay (UTRA) for patients whose regimens include TFV offers an affordable approach to frequent adherence monitoring. DESIGN We conducted a cross-sectional study of patients to assess the utility of UTRA to predict virologic failure, defined as a viral load greater than 400 copies/ml. METHODS We assessed urine TFV among 113 participants at increased risk of viral failure (who had previous viral failure on this regimen or had previously been ≥30 days out of care), comparing low genetic-barrier efavirenz (EFV) regimens (n = 60) to dolutegravir (DTG)-boosted or ritonavir-boosted protease inhibitor (PI/r)-based high genetic-barrier regimens (n = 53). Dried blood spots (DBS) for TFV-diphosphate and plasma for TFV concentrations were collected, with drug resistance assessed if viral failure present. RESULTS Among 113 participants, 17 of 53 received DTG or PI/r had viral failure at the cross-sectional visit, with 11 (64.7%) demonstrating an undetectable urine TFV; the negative-predictive value (NPV) of undetectable UTRA for viral failure was 85% (34/40); none of the 16 sequenced had dual class drug resistance. In those treated with EFV regimens the sensitivity was lower, as only 1 (4.8%) of 21 with viral failure had an undetectable UTRA (P < 0.001). CONCLUSIONS Urine tenofovir-testing had a high negative-predictive value for viral failure in patients treated with DTG or ritonavir-boosted protease inhibitor regimens, where viral failure was largely explained by poor drug adherence. Frequent monitoring with inexpensive lateral flow urine TFV testing should be investigated prospectively in between viral load visits to improve viral load suppression on DTG-based first-line therapy in resource-limited settings.
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Affiliation(s)
- Gert van Zyl
- Division of Medical Virology, Department Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University
- National Health Laboratory Service, Tygerberg Business Unit
| | - Lauren Jennings
- Desmond Tutu HIV Centre, Institute of Infectious Disease and Molecular Medicine and Department of Medicine, University of Cape Town
| | | | - Zukisa Nkantsu
- Desmond Tutu HIV Centre, Institute of Infectious Disease and Molecular Medicine and Department of Medicine, University of Cape Town
| | - Dolphina Cogill
- Desmond Tutu HIV Centre, Institute of Infectious Disease and Molecular Medicine and Department of Medicine, University of Cape Town
| | - Marije van Schalkwyk
- Division of Infectious Diseases, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Matthew Spinelli
- Division of HIV, Infectious Diseases, and Global Medicine at UCSF/San Francisco General Hospital, San Francisco, CA, USA
| | | | - Catherine Orrell
- Desmond Tutu HIV Centre, Institute of Infectious Disease and Molecular Medicine and Department of Medicine, University of Cape Town
| | - Monica Gandhi
- Division of HIV, Infectious Diseases, and Global Medicine at UCSF/San Francisco General Hospital, San Francisco, CA, USA
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11
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Li J, Chen D, Wen Z, Du Y, Huang Z, Zhong H, Wang Y, Yin S. Real-world efficacy and safety of dolutegravir plus lamivudine versus tenofovir plus lamivudine and efavirenz in ART-naïve HIV-1-infected adults. Medicine (Baltimore) 2022; 101:e31100. [PMID: 36281149 PMCID: PMC9592519 DOI: 10.1097/md.0000000000031100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Limited real-world data on dolutegravir (DTG) plus lamivudine (3TC) for HIV-1-infected individuals have been reported. This study aimed to evaluated the real-world efficacy and safety of DTG + 3TC in ART-naïve HIV-1-infected adults in China. This real-world prospective observational cohort study enrolled HIV-1-infected adults receiving ART initiation with DTG + 3TC (D3 group) or tenofovir plus lamivudine and efavirenz (TDF + 3TC + EFV, TLE group) with subgroups of low viral load (LVL, ≤500,000 copies/mL) and high viral load (HVL, >500,000 copies/mL) according to baseline HIV-1 RNA. Efficacy were assessed by proportion of virologic suppression, changes of CD4+ cell count and CD4/CD8 ratio, HIV-1 DNA decay, and safety by symptoms and changes of laboratory indicators at week 4, 12, 24, 36, and 48. Totally 45 participants in D3 group and 95 in TLE group were enrolled. The proportion of HIV RNA < 50 copies/mL were 48.7% (19/39), 84.6% (33/39), 100% (39/39), 100% (39/39) in D3-LVL subgroup at week 4, 12, 24, 48, compared with 1.3% (1/75), 14.7% (11/75), 86.7% (65/75), 96.0% (72/75) in TLE-LVL subgroup, with P < .05 at week 4, 12, and 36. The proportion were 0.0% (0/6), 66.7% (4/6), 83.3% (5/6), 100% (6/6) in D3-HVL subgroup compared with 0.0% (0/20), 5.0% (1/20), 85.0% (17/20), 100% (20/20) in TLE-HVL subgroup, with P < .05 at week 12. No virologic rebound was observed in D3 group. Mean change of CD4/CD8 ratio were higher in D3-LVL versus TLE-LVL subgroup at each scheduled visit (P < .05), while CD4+ cell counts increased significantly in D3-HVL versus TLE-HVL subgroup at week 4 and 12 (P < .05). Less complaint of dizziness, insomnia, dreaminess and amnesia, lower elevated level of triglyceride and higher elevated level of creatinine from baseline to week 48 were documented in D3 group (P < .05). Total HIV-1 DNA decayed along with HIV-1 RNA after DTG + 3TC initiation in both D3-LVL and D3-HVL subgroups. DTG + 3TC achieved virological suppression more rapidly and stably versus TDF + 3TC + EFV in ART-naïve HIV-1-infected adults, with better immunological response and less adverse drug effect, and reduced total HIV-1 DNA effectively. DTG + 3TC is a potent regimen for ART-naïve individuals with HIV-1 infection.
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Affiliation(s)
- Jin Li
- Department of Infectious Diseases, The Ninth People’s Hospital of Dongguan, Dongguan, China
- *Correspondence: Jin Li, No. 88 Shaditang, Guancheng District, Dongguan, Guangdong 523000, China (e-mail: )
| | - Dabiao Chen
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhiwei Wen
- Department of Infectious Diseases, The Ninth People’s Hospital of Dongguan, Dongguan, China
| | - Yanzhang Du
- Department of Infectious Diseases, The Ninth People’s Hospital of Dongguan, Dongguan, China
| | - Zhanlian Huang
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Huijun Zhong
- Department of Infectious Diseases, The Ninth People’s Hospital of Dongguan, Dongguan, China
| | - Yanhao Wang
- Department of Infectious Diseases, The Ninth People’s Hospital of Dongguan, Dongguan, China
| | - Sichun Yin
- Department of Infectious Diseases, The Ninth People’s Hospital of Dongguan, Dongguan, China
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12
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Deng L, Li C, Chen P, Luo X, Zheng X, Zhou L, Zhou Y, Xia J, Hong Z. Dolutegravir plus lamivudine versus efavirenz plus tenofovir disoproxil fumarate and lamivudine in antiretroviral-naive adults with HIV-1 infection. BMC Infect Dis 2022; 22:17. [PMID: 34983415 PMCID: PMC8725510 DOI: 10.1186/s12879-021-06991-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/17/2021] [Indexed: 01/02/2023] Open
Abstract
Background Concerns regarding potential toxicity and drug-drug interactions during long-term treatment with three-drug active antiretroviral therapy (ART) regimens have been attracting increasing attention. We aimed to evaluate the efficacy and safety of dolutegravir (DTG) plus lamivudine (3TC) in ART-naive adults in China. Methods This prospective observational cohort study enrolled HIV-naive inpatients treated with DTG + 3TC (2DR arm) or efavirenz (EFV) plus tenofovir disoproxil fumarate (TDF) and 3TC (3DR arm). There were no limits on baseline viral load. Inflammatory biomarkers were also investigated in the 2DR arm. Results Between September 2019 and January 2020, 27 patients treated with DTG + 3TC and 28 patients treated with EFV + TDF + 3TC were enrolled in the study. At week 12, the proportion of patients with viral loads < 50 copies/mL in the 2DR arm was 81.5% (22/27) compared with 53.6% (15/28) in the 3DR arm (p < 0.01). At week 24, the proportion of patients with viral loads < 50 copies/mL in the 2DR arm was 100% (26/26) compared with 83.3% (20/24) in the 3DR arm (p < 0.05). Mean changes in CD4 cell counts from baseline at week 12 were 125.46 cells/µL in the 2DR arm and 41.20 cells/µL in the 3DR arm (p < 0.05). Mean changes in CD4 cell counts from baseline at week 24 were 209.68 cells/µL in the 2DR arm and 73.28 cells/µL in the 3DR arm (p < 0.05). Conclusions DTG + 3TC achieved virologic suppression more rapidly than EFV + TDF + 3TC after 12 and 24 weeks. DTG + 3TC could represent an optimal regimen for advanced patients. Clinical Trial Registration ChiCTR1900027640 (22/November/2019).
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Affiliation(s)
- Lisi Deng
- Department of Infectious Diseases, the Fifth Affiliated Hospital, Sun Yat-Sen University, 52 East Meihua Road, Zhuhai, 519000, Guangdong, China
| | - Chunna Li
- Department of Infectious Diseases, the Fifth Affiliated Hospital, Sun Yat-Sen University, 52 East Meihua Road, Zhuhai, 519000, Guangdong, China
| | - Ping Chen
- Department of Infectious Diseases, the Fifth Affiliated Hospital, Sun Yat-Sen University, 52 East Meihua Road, Zhuhai, 519000, Guangdong, China
| | - Xiaoqing Luo
- Department of Infectious Diseases, the Fifth Affiliated Hospital, Sun Yat-Sen University, 52 East Meihua Road, Zhuhai, 519000, Guangdong, China
| | - Xinchun Zheng
- Department of Infectious Diseases, the Fifth Affiliated Hospital, Sun Yat-Sen University, 52 East Meihua Road, Zhuhai, 519000, Guangdong, China
| | - Lanlan Zhou
- Center for Disease Control and Prevention, Zhuhai, 519000, China
| | - Yi Zhou
- Center for Disease Control and Prevention, Zhuhai, 519000, China
| | - Jinyu Xia
- Department of Infectious Diseases, the Fifth Affiliated Hospital, Sun Yat-Sen University, 52 East Meihua Road, Zhuhai, 519000, Guangdong, China
| | - Zhongsi Hong
- Department of Infectious Diseases, the Fifth Affiliated Hospital, Sun Yat-Sen University, 52 East Meihua Road, Zhuhai, 519000, Guangdong, China.
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13
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Cahn P, Sierra Madero J, Arribas JR, Antinori A, Ortiz R, Clarke AE, Hung CC, Rockstroh JK, Girard PM, Sievers J, Man CY, Urbaityte R, Brandon DJ, Underwood M, Pappa KA, Curtis L, Smith KY, Gartland M, Aboud M, van Wyk J, Wynne B. Three-year durable efficacy of dolutegravir plus lamivudine in antiretroviral therapy - naive adults with HIV-1 infection. AIDS 2022; 36:39-48. [PMID: 34534138 PMCID: PMC8654248 DOI: 10.1097/qad.0000000000003070] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/13/2021] [Accepted: 08/23/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To assess efficacy and safety of dolutegravir (DTG) + lamivudine (3TC) vs. DTG + tenofovir disoproxil fumarate/emtricitabine (TDF/FTC) in treatment-naive adults with HIV-1 in the prespecified 144-week secondary analyses of GEMINI-1 and GEMINI-2. DESIGN Identical, multicenter, phase III, randomized, non-inferiority studies (double-blind through 96 weeks). METHODS Participants with HIV-1 RNA ≤500 000 copies/ml and no major viral resistance mutations to nucleoside reverse transcriptase inhibitors, nonnucleoside reverse transcriptase inhibitors, or protease inhibitors were randomized 1:1 to once-daily DTG + 3TC or DTG + TDF/FTC. RESULTS At week 144, DTG + 3TC (N = 716) was noninferior to DTG + TDF/FTC (N = 717) in proportion of participants achieving HIV-1 RNA <50 copies/ml (Snapshot algorithm) in the pooled analysis (82% vs. 84%, respectively; adjusted treatment difference [95% confidence interval (CI)], -1.8% [-5.8, 2.1]), GEMINI-1 (-3.6% [-9.4, 2.1]), and GEMINI-2 (0.0% [-5.3, 5.3]). Twelve DTG + 3TC participants and nine DTG + TDF/FTC participants met protocol-defined confirmed virologic withdrawal (CVW) criteria; none developed treatment-emergent resistance. One DTG + 3TC participant who did not meet CVW criteria developed M184V at week 132 and R263R/K at week 144, conferring a 1.8-fold change in susceptibility to DTG; non-adherence to therapy was reported. Significantly fewer drug-related adverse events occurred with DTG + 3TC vs. DTG + TDF/FTC (20% vs. 27%; relative risk [95% CI], 0.76 [0.63-0.92]). Renal and bone biomarker changes favored DTG + 3TC. CONCLUSIONS Three-year durable efficacy, long-term tolerability, and high barrier to resistance support first-line use of DTG + 3TC for HIV-1 treatment (see Supplemental Digital Content 1, http://links.lww.com/QAD/C297; video abstract).
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Affiliation(s)
- Pedro Cahn
- Fundación Huésped, Buenos Aires, Argentina
| | - Juan Sierra Madero
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | | | - Andrea Antinori
- Istituto Nazionale per le Malattie Infettive Lazzaro Spallanzani IRCCS, Rome, Italy
| | | | - Amanda E. Clarke
- Royal Sussex County Hospital, and Brighton & Sussex Medical School, Brighton, UK
| | | | | | | | | | - Choy Y. Man
- ViiV Healthcare, Research Triangle Park, North Carolina, USA
| | | | | | - Mark Underwood
- ViiV Healthcare, Research Triangle Park, North Carolina, USA
| | - Keith A. Pappa
- ViiV Healthcare, Research Triangle Park, North Carolina, USA
| | | | | | - Martin Gartland
- ViiV Healthcare, Research Triangle Park, North Carolina, USA
| | | | | | - Brian Wynne
- ViiV Healthcare, Research Triangle Park, North Carolina, USA
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14
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Patel R, Evitt L, Mariolis I, Di Giambenedetto S, d'Arminio Monforte A, Casado J, Cabello Úbeda A, Hocqueloux L, Allavena C, Barber T, Jha D, Kumar R, Kamath RD, Vincent T, van Wyk J, Koteff J. HIV Treatment with the Two-Drug Regimen Dolutegravir Plus Lamivudine in Real-world Clinical Practice: A Systematic Literature Review. Infect Dis Ther 2021; 10:2051-2070. [PMID: 34426899 PMCID: PMC8572911 DOI: 10.1007/s40121-021-00522-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/04/2021] [Indexed: 12/15/2022] Open
Abstract
The two-drug regimen dolutegravir plus lamivudine demonstrated durable efficacy for up to 3 years in phase III studies and a high barrier to resistance in treatment-naive and virologically suppressed people with HIV (PWH). This systematic literature review summarizes real-world evidence evaluating effectiveness and safety of dolutegravir plus lamivudine. We searched Ovid MEDLINE®, Embase®, PubMed, Cochrane library, and relevant international conference proceedings from 2013 to 2020. Qualitative synthesis of virologic suppression at Week 48, treatment-emergent resistance, discontinuation rates, and comorbidities was undertaken, with no statistical analyses conducted. Linked publications and potential for duplication in reporting of outcomes for cohorts and populations were identified, and the publication reporting the highest number of PWH receiving dolutegravir plus lamivudine was included in the analysis. Thirty-four studies reporting on cohorts of PWH not suspected to be linked or to include duplicate data receiving dolutegravir plus lamivudine were identified (N = 5017). Of 3744 virologically suppressed PWH who switched to dolutegravir plus lamivudine, 603 (16%) reported history of virologic failure. Nineteen studies included effectiveness data (n = 3558), four of which included data from treatment-naive PWH (n = 69). In studies with > 100 PWH, high rates of virologic suppression (Week 48, 97-100%) were maintained with dolutegravir plus lamivudine, with low rates of virologic failure (0-3.3 per 100 person-years of follow-up); one instance of emergent integrase strand transfer inhibitor resistance was reported in a complex treatment-experienced individual. Rates of discontinuation due to adverse events were low and consistent with previously observed trial data. Dolutegravir plus lamivudine minimally impacted renal function and had minimal impact on or improved lipid profiles and bone mineral density. This systematic review demonstrates that effectiveness and safety of dolutegravir plus lamivudine in clinical practice support data from randomized controlled trials with regard to high rates of virologic response, low rates of discontinuation, and a high barrier to resistance.
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Affiliation(s)
- Rickesh Patel
- ViiV Healthcare, 980 Great West Road, Brentford, TW8 9GS, Middlesex, UK.
| | - Lee Evitt
- ViiV Healthcare, 980 Great West Road, Brentford, TW8 9GS, Middlesex, UK
| | | | - Simona Di Giambenedetto
- UOC Malattie Infettive, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Dipartimento di Sicurezza e Bioetica, Sezione di Malattie Infettive, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Antonella d'Arminio Monforte
- Department of Health Sciences, Clinic of Infectious Diseases, 'San Paolo' Hospital, University of Milan, Milan, Italy
| | - José Casado
- Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Alfonso Cabello Úbeda
- Infectious Diseases Division, Fundación Jimenez Diaz University Hospital, Madrid, Spain
| | - Laurent Hocqueloux
- Infectious Diseases Department, Centre Hospitalier Régional d'Orléans, Orléans, France
| | | | | | - Diwakar Jha
- GlaxoSmithKline Knowledge Centre, Gurgaon, Haryana, India
| | - Rahul Kumar
- GlaxoSmithKline Knowledge Centre, Gurgaon, Haryana, India
| | | | - Tia Vincent
- ViiV Healthcare, 980 Great West Road, Brentford, TW8 9GS, Middlesex, UK
| | - Jean van Wyk
- ViiV Healthcare, 980 Great West Road, Brentford, TW8 9GS, Middlesex, UK
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15
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Deschanvres C, Reynes J, Lamaury I, Rey D, Palich R, Bani-Sadr F, Robineau O, Duvivier C, Hocqueloux L, Cuzin L, Joly V, Raffi F, Cabie A, Allavena C. Dolutegravir-based dual maintenance regimens combined with lamivudine/emtricitabine or rilpivirine: risk of virological failure in a real-life setting. J Antimicrob Chemother 2021; 77:196-204. [PMID: 34651192 DOI: 10.1093/jac/dkab367] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 09/02/2021] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Maintenance ART with dolutegravir-based dual regimens have proved their efficacy among HIV-1-infected subjects in randomized trials. However, real-life data are scarce, with limited populations and follow-up. OBJECTIVES We assessed virological failure (VF) and resistance-associated mutations (RAMs) on dolutegravir maintenance regimens in combination with rilpivirine or with lamivudine or emtricitabine (xTC) and analysed the factors associated with VF. METHODS Between 2014 and 2018, all HIV-1-infected adults included in the Dat'AIDS cohort and starting dolutegravir/rilpivirine or dolutegravir/xTC as a maintenance dolutegravir-based dual regimen were selected. VF was defined as two consecutive HIV RNA values >50 copies/mL or a single value >400 copies/mL. We compared cumulative genotypes before initiation of a maintenance dolutegravir-based dual regimen with genotype at VF. RESULTS We analysed 1374 subjects (799 on dolutegravir/rilpivirine and 575 on dolutegravir/xTC) with a median follow-up of 20 months (IQR = 11-31) and 19 months (IQR = 11-31), respectively. VF occurred in 3.8% (n = 30) of dolutegravir/rilpivirine subjects and 2.6% (n = 15) of dolutegravir/xTC subjects. Among subjects receiving dolutegravir/rilpivirine, two genotypes harboured emerging RAMs at VF: E138K on NNRTI (n = 1); and E138K+K101E on NNRTI and N155H on INSTI (n = 1). Among subjects receiving dolutegravir/xTC, no new RAM was detected. The only predictive factor of VF on dolutegravir/rilpivirine was the history of failure on an NNRTI-based regimen (adjusted HR = 2.97, 95% CI = 1.28-6.93). No factor was associated with VF on dolutegravir/xTC. CONCLUSIONS In this large real-life cohort, dolutegravir/rilpivirine and dolutegravir/xTC sustained virological suppression and were associated with a low rate of VF and RAM emergence. Careful virological screening is essential before switching to dolutegravir/rilpivirine in virologically suppressed patients with a history of NNRTI therapy.
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Affiliation(s)
- Colin Deschanvres
- Infectious Diseases Department, Nantes University Hospital, Nantes, France
| | - Jacques Reynes
- Infectious and Tropical Diseases Department, Montpellier University Hospital, Montpellier, France.,UMI 233, Inserm U1175, Montpellier University Hospital, Montpellier, France
| | - Isabelle Lamaury
- Department of Infectious and Tropical Diseases, Dermatology, Internal Medicine, University Hospital of Guadeloupe, Pointe-à-Pitre, France
| | - David Rey
- Human Immunodeficiency Virus Care Center, Strasbourg University Hospitals, Strasbourg, France
| | - Romain Palich
- Infectious Diseases Department, Pitié-Salpêtrière Hospital, Paris, France
| | - Firouzé Bani-Sadr
- Department of Internal Medicine, Clinical Immunology and Infectious Diseases, Reims University Hospital, Reims, France
| | - Olivier Robineau
- Infectious Diseases Department, Gustave Dron Hospital, Tourcoing, France
| | - Claudine Duvivier
- Infectious and Tropical Diseases Department, Institut Pasteur, Paris, France
| | - Laurent Hocqueloux
- Department of Infectious and Tropical Diseases, Regional Hospital Center, Orléans, France
| | - Lise Cuzin
- CERPOP, Inserm UMR1295, Toulouse University, Toulouse, France.,Infectious Diseases Department, Martinique University Hospital, Fort-de-France, France
| | - Veronique Joly
- Infectious and Tropical Diseases Department, Bichat-Claude Bernard University Hospital, Paris, France
| | - Francois Raffi
- Infectious Diseases Department, Nantes University Hospital, Nantes, France
| | - André Cabie
- Infectious Diseases Department, Martinique University Hospital, Fort-de-France, France
| | - Clotilde Allavena
- Infectious Diseases Department, Nantes University Hospital, Nantes, France
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16
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Yendewa GA, Perez JA, Schlick K, Tribout H, McComsey GA. Clinical Features and Outcomes of Coronavirus Disease 2019 Among People With Human Immunodeficiency Virus in the United States: A Multicenter Study From a Large Global Health Research Network (TriNetX). Open Forum Infect Dis 2021; 8:ofab272. [PMID: 34435074 PMCID: PMC8244788 DOI: 10.1093/ofid/ofab272] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 05/21/2021] [Indexed: 12/14/2022] Open
Abstract
Background Human immunodeficiency virus infection (HIV) is a presumed risk factor for severe coronavirus disease 2019 (COVID-19), yet little is known about COVID-19 outcomes in people with HIV (PWH). Methods We used the TriNetX database to compare COVID-19 outcomes of PWH and HIV-negative controls aged ≥18 years who sought care in 44 healthcare centers in the United States from January 1 to December 1, 2020. Outcomes of interest were rates of hospitalization (composite of inpatient non-intensive care [ICU] and ICU admissions), mechanical ventilation, severe disease (ICU admission or death), and 30-day mortality. Results Of 297 194 confirmed COVID-19 cases, 1638 (0.6%) were HIV-infected, with >83% on antiretroviral therapy (ART) and 48% virally suppressed. Overall, PWH were more commonly younger, male, African American or Hispanic, had more comorbidities, were more symptomatic, and had elevated procalcitonin and interleukin 6. Mortality at 30 days was comparable between the 2 groups (2.9% vs 2.3%, P = .123); however, PWH had higher rates hospitalization (16.5% vs 7.6%, P < .001), ICU admissions (4.2% vs 2.3%, P < .001), and mechanical ventilation (2.4% vs 1.6%, P < .005). Among PWH, hospitalization was independently associated with male gender, being African American, integrase inhibitor use, and low CD4 count; whereas severe disease was predicted by older age (adjusted odds ratio [aOR], 8.33; 95% confidence interval [CI], 1.06-50.00; P = .044) and CD4 <200 cells/mm3 (aOR, 8.33; 95% CI, 1.06-50.00; P = .044). Conclusions People with HIV had higher rates of poor COVID-19 outcomes but were not more at risk of death than their non-HIV-infected counterparts. Older age and low CD4 count predicted adverse outcomes.
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Affiliation(s)
- George A Yendewa
- Department of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.,Division of Infectious Diseases and HIV Medicine, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Jaime Abraham Perez
- Center for Clinical Research, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Kayla Schlick
- Center for Clinical Research, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Heather Tribout
- Center for Clinical Research, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Grace A McComsey
- Center for Clinical Research, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA.,Department of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.,Department of Pediatrics, Case Western Reserve University, Cleveland, Ohio, USA.,Rainbow Babies and Children's Hospital, Cleveland, Ohio, USA
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17
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Bade AN, McMillan JM, Liu Y, Edagwa BJ, Gendelman HE. Dolutegravir Inhibition of Matrix Metalloproteinases Affects Mouse Neurodevelopment. Mol Neurobiol 2021; 58:5703-5721. [PMID: 34390469 PMCID: PMC8599359 DOI: 10.1007/s12035-021-02508-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 07/25/2021] [Indexed: 11/30/2022]
Abstract
Dolutegravir (DTG) is a first-line antiretroviral drug (ARV) used in combination therapy for the treatment of human immunodeficiency virus type-1 (HIV-1) infection. The drug is effective, safe, and well tolerated. Nonetheless, concerns have recently emerged for its usage in pregnant women or those of child-bearing age. Notably, DTG-based ARV regimens have been linked to birth defects seen as a consequence of periconceptional usages. To this end, uncovering an underlying mechanism for DTG-associated adverse fetal development outcomes has gained clinical and basic research interest. We now report that DTG inhibits matrix metalloproteinases (MMPs) activities that could affect fetal neurodevelopment. DTG is a broad-spectrum MMPs inhibitor and binds to Zn++ at the enzyme’s catalytic domain. Studies performed in pregnant mice show that DTG readily reaches the fetal central nervous system during gestation and inhibits MMP activity. Postnatal screenings of brain health in mice pups identified neuroinflammation and neuronal impairment. These abnormalities persist as a consequence of in utero DTG exposure. We conclude that DTG inhibition of MMPs activities during gestation has the potential to affect prenatal and postnatal neurodevelopment.
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Affiliation(s)
- Aditya N Bade
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198-5800, USA.
| | - JoEllyn M McMillan
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198-5800, USA
| | - Yutong Liu
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198-5800, USA.,Department of Radiology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Benson J Edagwa
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198-5800, USA
| | - Howard E Gendelman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198-5800, USA. .,Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
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18
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van Wyk J, Ajana F, Bisshop F, De Wit S, Osiyemi O, Portilla Sogorb J, Routy JP, Wyen C, Ait-Khaled M, Nascimento MC, Pappa KA, Wang R, Wright J, Tenorio AR, Wynne B, Aboud M, Gartland MJ, Smith KY. Efficacy and Safety of Switching to Dolutegravir/Lamivudine Fixed-Dose 2-Drug Regimen vs Continuing a Tenofovir Alafenamide-Based 3- or 4-Drug Regimen for Maintenance of Virologic Suppression in Adults Living With Human Immunodeficiency Virus Type 1: Phase 3, Randomized, Noninferiority TANGO Study. Clin Infect Dis 2021; 71:1920-1929. [PMID: 31905383 PMCID: PMC7643745 DOI: 10.1093/cid/ciz1243] [Citation(s) in RCA: 138] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 01/02/2020] [Indexed: 01/07/2023] Open
Abstract
Background The 2-drug regimen dolutegravir (DTG) + lamivudine (3TC) is indicated for treatment-naive adults with human immunodeficiency virus type 1 (HIV-1). We present efficacy and safety of switching to DTG/3TC in virologically suppressed individuals. Methods TANGO is an open-label, multicenter, phase 3 study that randomized adults (1:1, stratified by baseline third agent class) with HIV-1 RNA <50 copies/mL to switch to once-daily fixed-dose DTG/3TC or remain on a tenofovir alafenamide (TAF)–based regimen. The primary end point was proportion of participants with HIV-1 RNA ≥50 copies/mL at week 48 (US Food and Drug Administration Snapshot algorithm) in the intention-to-treat–exposed population (4% noninferiority margin). Results 743 adults were enrolled; 741 received ≥1 dose of study drug (DTG/3TC, N = 369; TAF-based regimen, N = 372). At week 48, proportion of participants with HIV-1 RNA ≥50 copies/mL receiving DTG/3TC was 0.3% (1/369) vs 0.5% (2/372) with a TAF-based regimen (adjusted treatment difference [95% confidence interval], −0.3 [−1.2 to .7]), meeting noninferiority criteria. No participants receiving DTG/3TC and 1 receiving a TAF-based regimen met confirmed virologic withdrawal criteria, with no emergent resistance at failure. Drug-related grade ≥2 adverse events and withdrawals due to adverse events occurred in 17 (4.6%) and 13 (3.5%) participants with DTG/3TC and 3 (0.8%) and 2 (0.5%) with a TAF-based regimen, respectively. Conclusions DTG/3TC was noninferior in maintaining virologic suppression vs a TAF-based regimen at week 48, with no virologic failure or emergent resistance reported with DTG/3TC, supporting it as a simplification strategy for virologically suppressed people with HIV-1. Clinical Trials Registration NCT03446573.
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Affiliation(s)
| | - Faïza Ajana
- Centre Hospitalier de Tourcoing, Tourcoing, France
| | - Fiona Bisshop
- Holdsworth House Medical Brisbane, Queensland, Australia
| | - Stéphane De Wit
- CHU Saint-Pierre, Université Libre de Bruxelles, Brussels, Belgium
| | - Olayemi Osiyemi
- Triple O Research Institute PA, West Palm Beach, Florida, USA
| | | | | | | | | | | | - Keith A Pappa
- ViiV Healthcare, Research Triangle Park, North Carolina, USA
| | - Ruolan Wang
- ViiV Healthcare, Research Triangle Park, North Carolina, USA
| | | | - Allan R Tenorio
- ViiV Healthcare, Research Triangle Park, North Carolina, USA
| | - Brian Wynne
- ViiV Healthcare, Research Triangle Park, North Carolina, USA
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19
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Pene Dumitrescu T, Joshi SR, Xu J, Greene TJ, Johnson M, Butcher L, Zimmerman E, Webster L, Pham TT, Lataillade M, Min S. Phase I evaluation of pharmacokinetics and tolerability of the HIV-1 maturation inhibitor GSK3640254 and dolutegravir in healthy adults. Br J Clin Pharmacol 2021; 87:3501-3507. [PMID: 33533507 PMCID: PMC8451875 DOI: 10.1111/bcp.14759] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/18/2020] [Accepted: 12/28/2020] [Indexed: 12/28/2022] Open
Abstract
Aims GSK3640254, a novel, next‐generation maturation inhibitor effective against a range of HIV polymorphisms with no cross‐resistance to current antiretroviral therapy, could potentially be coadministered with dolutegravir as a 2‐drug regimen. In this phase I study, pharmacokinetics and tolerability of GSK3640254 plus dolutegravir were assessed. Methods Healthy participants received dolutegravir 50 mg once daily (QD) on Days 1–5 in period 1, GSK3640254 200 mg QD on Days 1–7 in period 2, and dolutegravir 50 mg plus GSK3640254 200 mg QD on Days 1–7 in period 3. All treatments were administered with a moderate‐fat meal 30 minutes prior to dosing. Pharmacokinetics parameters were derived by noncompartmental methods, and geometric mean ratios (GMRs) and 90% confidence intervals (CIs) were derived using linear mixed effects models. Adverse events, laboratory measurements, electrocardiography and vital signs were monitored. Results Sixteen participants completed the study. GMRs (90% CIs) for dolutegravir area under the plasma concentration–time curve from time 0 to the end of the dosing interval at steady state, maximum observed concentration and plasma concentration at the end of the dosing interval were 1.17 (1.118–1.233), 1.09 (1.044–1.138) and 1.24 (1.160–1.315), respectively. The GMRs (90% CIs) for GSK3640254 were 1.04 (0.992–1.094), 0.99 (0.923–1.065) and 0.10 (0.939–1.056), respectively. Dolutegravir plus GSK3640254 coadministration did not meaningfully alter steady‐state exposure to dolutegravir or GSK3640254. No clinically significant trends in tolerability or safety were observed. Conclusion Coadministration of GSK3640254 with dolutegravir did not result in clinically significant drug interaction and was well tolerated.
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Affiliation(s)
| | | | | | | | - Mark Johnson
- ViiV Healthcare, Research Triangle Park, NC, USA
| | | | | | | | | | | | - Sherene Min
- ViiV Healthcare, Research Triangle Park, NC, USA
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20
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Golin R, Samuel JM, Phelps BR, Persaud U, Malati CY, Siberry GK. The promise of paediatric dolutegravir. J Int AIDS Soc 2021; 24:e25660. [PMID: 33522081 PMCID: PMC7848097 DOI: 10.1002/jia2.25660] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/02/2020] [Accepted: 12/07/2020] [Indexed: 11/23/2022] Open
Affiliation(s)
- Rachel Golin
- Office of HIV/AIDSUnited States Agency for International DevelopmentWashingtonDCUSA
| | - Jeffrey M Samuel
- Office of HIV/AIDSUnited States Agency for International DevelopmentWashingtonDCUSA
| | - B Ryan Phelps
- Office of HIV/AIDSUnited States Agency for International DevelopmentWashingtonDCUSA
| | - Udita Persaud
- Office of HIV/AIDSUnited States Agency for International DevelopmentWashingtonDCUSA
| | - Christine Y Malati
- Office of HIV/AIDSUnited States Agency for International DevelopmentWashingtonDCUSA
| | - George K Siberry
- Office of HIV/AIDSUnited States Agency for International DevelopmentWashingtonDCUSA
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21
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Pisaturo M, Onorato L, Russo A, Martini S, Chiodini P, Signoriello S, Maggi P, Coppola N. Risk of failure in dual therapy versus triple therapy in naïve HIV patients: a systematic review and meta-analysis. Clin Microbiol Infect 2020; 27:28-35. [PMID: 33031949 DOI: 10.1016/j.cmi.2020.09.048] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 08/31/2020] [Accepted: 09/25/2020] [Indexed: 01/22/2023]
Abstract
OBJECTIVES Several attempts have been made to test different drug-sparing strategies to reduce the drug-burden and drug-related toxicities. The objective of this meta-analysis was to evaluate the relative risk (RR) of failure of dual therapies compared to triple therapies in HIV-naïve patients. METHODS We searched MEDLINE, Google Scholar and the Cochrane Library. The following criteria were used: present data from original articles comparing the two treatment regimens; published from January 2007 up to January, 2020. No language or study design restriction was applied. Subjects were HIV-positive naïve patients treated with dual or triple antiretroviral therapy (ART). A systematic review and meta-analysis was performed. Treatment failure (TF) was the primary outcome evaluated; heterogeneity was assessed using the Q statistic and I2. RESULTS Fourteen studies were included, allowing a meta-analysis on 5205 patients. The meta-analysis performed on studies that presented data at 48 weeks showed that the RR of TF (RR > 1 favouring triple therapy) in 10 studies was 1.20 (95% confidence interval (CI): 0.91-1.59, I2: 49.2%); the RR of virological failure (VF) in eight studies was 1.54 (95% CI: 0.84-2.86, I2: 54%); the RR of adverse drug reaction leading to discontinuation of the regimen at 48 weeks in eight studies was 0.76 (95% CI: 0.43-1.33, I2: 17.7%). In patients with less than 200 CD4+, the RR of TF in two studies without maraviroc was 2.09 (95% CI: 1.05-4.17, I2: 0.0%). Regarding the studies at 96 weeks there was no difference except in rate of development of resistance, RR 1.94 (95% CI: 1.06-3.53, I2: 6.2%). CONCLUSION Dual therapies are as effective as those with three drugs, showing no difference according to the different dual therapies, except in patients with less than 200 CD4; however, they are associated with a higher selection of resistance-associated mutations at 96 weeks of therapy.
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Affiliation(s)
- Mariantonietta Pisaturo
- Department of Mental Health and Public Medicine - Infectious Diseases Unit, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Lorenzo Onorato
- Department of Mental Health and Public Medicine - Infectious Diseases Unit, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Antonio Russo
- Department of Mental Health and Public Medicine - Infectious Diseases Unit, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Salvatore Martini
- Infectious Disease Unit, University Hospital Luigi Vanvitelli, Naples, Italy
| | - Paolo Chiodini
- Medical Statistics Unit, Department of Mental Health and Public Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Simona Signoriello
- Medical Statistics Unit, Department of Mental Health and Public Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Paolo Maggi
- Department of Mental Health and Public Medicine - Infectious Diseases Unit, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Nicola Coppola
- Department of Mental Health and Public Medicine - Infectious Diseases Unit, University of Campania Luigi Vanvitelli, Naples, Italy; Infectious Disease Unit, University Hospital Luigi Vanvitelli, Naples, Italy.
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22
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Zhang TH, Dai L, Barton JP, Du Y, Tan Y, Pang W, Chakraborty AK, Lloyd-Smith JO, Sun R. Predominance of positive epistasis among drug resistance-associated mutations in HIV-1 protease. PLoS Genet 2020; 16:e1009009. [PMID: 33085662 PMCID: PMC7605711 DOI: 10.1371/journal.pgen.1009009] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 11/02/2020] [Accepted: 07/24/2020] [Indexed: 12/12/2022] Open
Abstract
Drug-resistant mutations often have deleterious impacts on replication fitness, posing a fitness cost that can only be overcome by compensatory mutations. However, the role of fitness cost in the evolution of drug resistance has often been overlooked in clinical studies or in vitro selection experiments, as these observations only capture the outcome of drug selection. In this study, we systematically profile the fitness landscape of resistance-associated sites in HIV-1 protease using deep mutational scanning. We construct a mutant library covering combinations of mutations at 11 sites in HIV-1 protease, all of which are associated with resistance to protease inhibitors in clinic. Using deep sequencing, we quantify the fitness of thousands of HIV-1 protease mutants after multiple cycles of replication in human T cells. Although the majority of resistance-associated mutations have deleterious effects on viral replication, we find that epistasis among resistance-associated mutations is predominantly positive. Furthermore, our fitness data are consistent with genetic interactions inferred directly from HIV sequence data of patients. Fitness valleys formed by strong positive epistasis reduce the likelihood of reversal of drug resistance mutations. Overall, our results support the view that strong compensatory effects are involved in the emergence of clinically observed resistance mutations and provide insights to understanding fitness barriers in the evolution and reversion of drug resistance.
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Affiliation(s)
- Tian-hao Zhang
- Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA
| | - Lei Dai
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - John P. Barton
- Department of Physics and Astronomy, University of California, Riverside, CA 92521, USA
| | - Yushen Du
- School of Medicine, ZheJiang University, Hangzhou, 210000, China
- Molecular and Medical Pharmacology, University of California, Los Angeles, CA 90095, USA
| | - Yuxiang Tan
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Wenwen Pang
- Department of Public Health Laboratory Science, West China School of Public Health, Sichuan University, Chengdu 610041, China
| | - Arup K. Chakraborty
- Institute for Medical Engineering and Science, Departments of Chemical Engineering, Physics, & Chemistry, Massachusetts Institute of Technology, MA 21309, USA
- Ragon Institute of MGH, MIT, & Harvard, Cambridge, MA 21309, USA
| | - James O. Lloyd-Smith
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA 90095, USA
| | - Ren Sun
- Molecular and Medical Pharmacology, University of California, Los Angeles, CA 90095, USA
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23
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Durable Efficacy of Dolutegravir Plus Lamivudine in Antiretroviral Treatment-Naive Adults With HIV-1 Infection: 96-Week Results From the GEMINI-1 and GEMINI-2 Randomized Clinical Trials. J Acquir Immune Defic Syndr 2020; 83:310-318. [PMID: 31834000 PMCID: PMC7043729 DOI: 10.1097/qai.0000000000002275] [Citation(s) in RCA: 115] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Supplemental Digital Content is Available in the Text. The 2-drug regimen dolutegravir + lamivudine was noninferior to dolutegravir + tenofovir disoproxil fumarate/emtricitabine in achieving HIV-1 RNA <50 copies/mL in treatment-naive adults in the 48-week primary analysis of the GEMINI trials. We present results from the prespecified 96-week secondary analyses.
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24
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Molecular dynamic simulations to investigate the structural impact of known drug resistance mutations on HIV-1C Integrase-Dolutegravir binding. PLoS One 2020; 15:e0223464. [PMID: 32379830 PMCID: PMC7205217 DOI: 10.1371/journal.pone.0223464] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 04/21/2020] [Indexed: 12/18/2022] Open
Abstract
Resistance associated mutations (RAMs) threaten the long-term success of combination antiretroviral therapy (cART) outcomes for HIV-1 treatment. HIV-1 Integrase (IN) strand transfer inhibitors (INSTIs) have proven to be a viable option for highly specific HIV-1 therapy. The INSTI, Dolutegravir is recommended by the World Health Organization for use as first-line cART. This study aims to understand how RAMs affect the stability of IN, as well as the binding of the drug Dolutegravir to the catalytic pocket of the protein. A homology model of HIV-1 subtype C IN was successfully constructed and validated. The site directed mutator webserver was used to predict destabilizing and/or stabilizing effects of known RAMs while FoldX confirmed any changes in protein energy upon introduction of mutation. Also, interaction analysis was performed between neighbouring residues. Three mutations known to be associated with Raltegravir, Elvitegravir and Dolutegravir resistance were selected; E92Q, G140S and Y143R, for molecular dynamics simulations. The structural quality assessment indicated high reliability of the HIV-1C IN tetrameric structure, with more than 90% confidence in modelled regions. Change in free energy for the three mutants indicated different effects, while simulation analysis showed G140S to have the largest affect on protein stability and flexibility. This was further supported by weaker non-bonded pairwise interaction energy and binding free energy values between the drug DTG and E92Q, Y143R and G140S mutants suggesting reduced binding affinity, as indicated by interaction analysis in comparison to the WT. Our findings suggest the G140S mutant has the strongest effect on the HIV-1C IN protein structure and Dolutegravir binding. To the best of our knowledge, this is the first study that uses the consensus wild type HIV-1C IN sequence to build an accurate 3D model to understand the effect of three known mutations on DTG drug binding in a South Africa context.
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25
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Riccardi N, Del Puente F, Taramasso L, Di Biagio A. Maintenance of Viral Suppression after Optimization Therapy from Etravirine Plus Raltegravir to Rilpivirine Plus Dolutegravir in HIV-1-Infected Patients. J Int Assoc Provid AIDS Care 2020; 18:2325958218821657. [PMID: 30798670 PMCID: PMC6748463 DOI: 10.1177/2325958218821657] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Non-nucleoside reverse-transcriptase inhibitor plus integrase strand transfer inhibitor–based dual therapies are an attractive simplification, nucleoside reverse transcriptase inhibitor-sparing strategy for experienced human immunodeficiency virus-infected patients. Thus, we performed a 24-week real-life observational study to assess efficacy and safety of switching from raltegravir plus etravirine to dolutegravir plus rilpivirine in 7 previously heavily treated patients. This simplification strategy reduced pill burden and preserved viral suppression in treatment-experienced patients with no major mutations to rilpivirine at historical genotyping.
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Affiliation(s)
- Niccolò Riccardi
- 1 Infectious Diseases, Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Filippo Del Puente
- 1 Infectious Diseases, Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Lucia Taramasso
- 1 Infectious Diseases, Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Antonio Di Biagio
- 2 Infectious Diseases, Policlinico San Martino Hospital, Genoa, Italy
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26
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Gatell JM, Assoumou L, Moyle G, Waters L, Johnson M, Domingo P, Fox J, Martinez E, Stellbrink HJ, Guaraldi G, Masia M, Gompels M, De Wit S, Florence E, Esser S, Raffi F, Stephan C, Rockstroh J, Giacomelli A, Vera J, Bernardino JI, Winston A, Saumoy M, Gras J, Katlama C, Pozniak AL. Immediate Versus Deferred Switching From a Boosted Protease Inhibitor-based Regimen to a Dolutegravir-based Regimen in Virologically Suppressed Patients With High Cardiovascular Risk or Age ≥50 Years: Final 96-Week Results of the NEAT022 Study. Clin Infect Dis 2020; 68:597-606. [PMID: 29912307 DOI: 10.1093/cid/ciy505] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 06/12/2018] [Indexed: 01/10/2023] Open
Abstract
Background Both immediate and deferred switching from a ritonavir-boosted protease inhibitor (PI/r)-based regimen to a dolutegravir (DTG)-based regimen may improve lipid profile. Methods European Network for AIDS Treatment 022 Study (NEAT022) is a European, open-label, randomized trial. Human immunodeficiency virus (HIV)-infected adults aged ≥50 years or with a Framingham score ≥10% were eligible if HIV RNA was <50 copies/mL. Patients were randomized to switch from PI/r to DTG immediately (DTG-I) or to deferred switch at week 48 (DTG-D). Week 96 endpoints were proportion of patients with HIV RNA <50 copies/mL, percentage change of lipid fractions, and adverse events (AEs). Results Four hundred fifteen patients were randomized: 205 to DTG-I and 210 DTG-D. The primary objective of noninferiority at week 48 was met. At week 96, treatment success rate was 92.2% in the DTG-I arm and 87% in the DTG-D arm (difference, 5.2% [95% confidence interval, -.6% to 11%]). There were 5 virological failures in the DTG-I arm and 5 (1 while on PI/r and 4 after switching to DTG) in the DTG-D arm without selection of resistance mutations. There was no significant difference in terms of grade 3 or 4 AEs or treatment-modifying AEs. Total cholesterol and other lipid fractions (except high-density lipoprotein) significantly (P < .001) improved both after immediate and deferred switching to DTG overall and regardless of baseline PI/r strata. Conclusions Both immediate and deferred switching from a PI/r to a DTG regimen in virologically suppressed HIV-infected patients ≥50 years old or with a Framingham score ≥10% was highly efficacious and well tolerated, and improved the lipid profile. Clinical Trials Registration NCT02098837 and EudraCT: 2013-003704-39.
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Affiliation(s)
- José M Gatell
- Hospital Clinic/Institut d'Investigacions Biomediques August Pi i Suñer, University of Barcelona and ViiV Healthcare, Spain
| | - Lambert Assoumou
- Institut national de la santé et de la recherche médicale (INSERM), Sorbonne Université, Institut Pierre Louis d'épidémiologie et de Santé Publique, Unite Medical pour la Recherche Scientifique 1136, Paris, France
| | - Graeme Moyle
- Chelsea and Westminster Hospital and St Stephens AIDS Trust, London, United Kingdom
| | | | | | | | - Julie Fox
- Guys and St Thomas` Hospital, London, United Kingdom
| | - Esteban Martinez
- Hospital Clinic/Institut d'Investigacions Biomediques August Pi i Suñer, University of Barcelona and ViiV Healthcare, Spain
| | | | | | | | | | - Stephane De Wit
- Saint Pierre Hospital, Université Libre de Bruxelles, Brussels
| | | | | | - François Raffi
- Infectious Diseases University Hospital and Centre d'Investigation Clinique, Unite d'Investigation Clinique 1413 INSERM, Centre Hopitalier Universitaire Nantes, France
| | | | | | | | - Jaime Vera
- Global Health and Infection, Brighton and Sussex Medical School, United Kingdom
| | | | | | | | | | | | - Anton L Pozniak
- Chelsea and Westminster Hospital and St Stephens AIDS Trust, London, United Kingdom
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27
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Dolutegravir Population Pharmacokinetics in a Real-Life Cohort of People Living With HIV Infection: A Covariate Analysis. Ther Drug Monit 2020; 41:444-451. [PMID: 30817698 DOI: 10.1097/ftd.0000000000000618] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND There are growing concerns about dolutegravir (DTG)-related neuropsychiatric adverse events and about differences in the characteristics of people living with HIV infection (PLWH) potentially associated with higher risks of said side effects. Several studies have shown that DTG was stopped more frequently among women, older PLWH, and PLWH who initiated abacavir (ABC) at the same time. This study aimed to clarify the factors affecting the pharmacokinetics (PKs) of DTG in a real-life cohort of PLWH using a population PK approach. METHODS The model-building strategy was based on a previously published model developed from premarketing trials (1-compartment model with first-order absorption and a lag time). Sparse therapeutic drug monitoring data were obtained from a real-life cohort of 279 PLWH, and population PK analysis was performed using Monolix software. A stepwise covariate model-building strategy was used to evaluate any relevant effects of age, body weight, gender, total bilirubin, smoking status, formulations of DTG, morning versus evening dosing, backbone therapy, and other comedications including CYP/UGT inducers/inhibitors. RESULTS For a typical 70-kg PLWH, the apparent clearance (CL/F) and apparent volume of distribution (V/F) were 0.748 L/h and 14.6 L, respectively. Of the demographic factors evaluated, body weight was a significant covariate for CL/F and for V/F. Smokers had a 17% higher CL/F relative to nonsmokers. Both strong enzyme inhibitors (eg, atazanavir) and inducers (eg, rifampicin) had marked effects on DTG exposure, with potential clinical implications. Ritonavir-boosted darunavir was found to moderately increase clearance of DTG by 23%. No significant effect of ABC-based backbone therapy was observed on the PK parameters of DTG. CONCLUSIONS Our results did not support the hypothesis that ABC, by competing with the DTG metabolic pathway, may significantly increase DTG exposure leading to potential drug toxicity.
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28
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Marjani A, Bokharaei-Salim F, Jahanbakhshi F, Monavari SH, Esghaei M, Kalantari S, Kiani SJ, Ataei-Pirkooh A, Fakhim A, Keyvani H. HIV-1 integrase drug-resistance mutations in Iranian treatment-experienced HIV-1-infected patients. Arch Virol 2019; 165:115-125. [PMID: 31741096 DOI: 10.1007/s00705-019-04463-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 10/09/2019] [Indexed: 11/29/2022]
Abstract
The latest class of antiretrovirals (ARVs), including integrase strand transfer inhibitors (INSTIs), has been demonstrated to be effective for antiretroviral therapy (ART). Despite all the distinguishing characteristics of these drugs, including a high genetic barrier to resistance and lower toxicity than other ARVs, unfortunately, INSTI drug resistance mutations (DRMs) have occasionally been observed. The aim of this study was to investigate the presence of DRMs associated with INSTIs among treatment-experienced HIV-1-infected patients. From June 2012 to December 2018, a total of 655 treatment-experienced HIV-1-infected patients enrolled in this cross-sectional survey. Following amplification and sequencing of the HIV-1 integrase region of the pol gene, DRM and phylogenetic analysis were successfully carried out on the plasma samples of patients who had a viral load over 1,000 IU/ml after at least 6 months of ART. Out of the 655 patients evaluated, 62 (9.5%) had a viral load higher than 1,000 IU/ml after at least 6 months of ART. Phylogenetic analysis showed that all of the 62 HIV-1 patients experiencing treatment failure were infected with CRF35_AD, and one of these patients (1.6%) was infected with HIV-1 variants with DRMs. The DRMs that were identified belonged to the INSTI class, including E138K, G140A, S147G, and Q148R. This survey shows that DRMs belonging to the INSTI class were detected in an Iranian HIV patient who has experienced treatment failure. Therefore, regarding the presence of DRMs to INSTIs in ART-experienced patients, it seems better to perform drug resistance mutation testing in HIV patients experiencing treatment failure before changing the ART regimen and prescribing this class of medication.
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Affiliation(s)
- Arezoo Marjani
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farah Bokharaei-Salim
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | | | | | - Maryam Esghaei
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Saeed Kalantari
- Departments of Infectious Diseases and Tropical Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Jalal Kiani
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Angila Ataei-Pirkooh
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Atousa Fakhim
- Department of Architectural Engineering, Faculty of Engineering, Islamic Azad University, South Tehran Branch, Tehran, Iran
| | - Hossein Keyvani
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Kolakowska A, Maresca AF, Collins IJ, Cailhol J. Update on Adverse Effects of HIV Integrase Inhibitors. CURRENT TREATMENT OPTIONS IN INFECTIOUS DISEASES 2019; 11:372-387. [PMID: 33380904 PMCID: PMC7758219 DOI: 10.1007/s40506-019-00203-7] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE OF REVIEW The goal of this paper is to provide an up-to-date review of adverse events related to the class of integrase strand transfer inhibitors (INSTIs), which became the class of choice in few years. We sought answers specifically to issues pertaining to neuropsychiatric adverse events, as well as weight gain, which were the two most important categories of adverse events raised in recent studies based on real-life experience. The primary focus of this paper is on adults with a brief summary on pregnant women and children/adolescents. RECENT FINDINGS Dolutegravir (DTG) bears the heaviest burden of neuropsychiatric side effects. Weight gain was reported with all INSTIs, although there are methodological caveats in the analyses and the findings need to be interpreted with caution.Moreover, due to recent findings on neural tube defects in infants exposed to dolutegravir during their peri-conception period, its use is not recommended for women of childbearing age without proper birth control method, while raltegravir remains the only drug which may be prescribed without caution. Given the importance of cognitive and metabolic co-morbidities in people living with HIV in regard to their quality of life, future research needs to focus on long-term effects of INSTIs in relation to these adverse events. Pharmacogenetics seems to be a promising tool. Safety during pregnancy is also another important issue to further clarify. SUMMARY INSTIs are a generally well-tolerated class of antiretrovirals (ARV), and has a higher antiviral potency compared to other classes of ARV.Clinicians and patients need however to be aware of some red flags when starting with and monitoring patients on INSTIs.All INSTIs can lead to mild increases in creatinine levels, usually without clinical significance, but caution is needed in patients with low eGFR (<30ml/min), when using other nephrotoxic drugs, such as as tenofovir disoproxil.Neuro-psychiatric (NP) effects are to be monitored with INSTIs, especially with DTG (though reports are at times contradictory); clinicians might want to avoid DTG for patients with history of severe NP symptoms, until clarity is provided.Weight gain was reported with all INSTIs, especially with DTG, with possible differential effects according to sex and ethnicity (female and non-white patients being at increased risk). This is worrying since patients from African descent are at higher risk of cardio-vascular events and increased body mass index (BMI) can cause further increase metabolic risk. There is possibly an additional effect of tenofovir alafenamide (TAF) on weight increase.Discrepancies between clinical trials - with low rates of adverse events - and reports from real-life settings might be due partly to under-representation of some groups of patients in clinical trials, and/or the short duration of follow-up, since some adverse effects may only occur after prolonged exposure.Preliminary data on safety of bictegravir (BIC), from clinical trials and non-trial settings, are very reassuring and seem to show lower rates of adverse events compared to DTG.Elvitegravir/cobicistat (EVG/cobi) need to be used with caution in patients with other co-morbidities given potential for polypharmacy, as it is the case for aging patients, because of the high potential of drug-drug interactions due to effects of the cobicistat booster.We are awaiting the release of cabotegravir (CAB), which could represent a good option for patients struggling with adherence, despite injection site reactions.Pharmacogenetics is a promising way to explore adverse effects occurrence in the INSTI class.
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Affiliation(s)
- Agnieszka Kolakowska
- Infectious and Tropical Diseases Department, Avicenne University Hospital, Bobigny, France
| | - Anaenza Freire Maresca
- Infectious and Tropical Diseases Department, Avicenne University Hospital, Bobigny, France
| | - Intira Jeannie Collins
- MRC Clinical Trials Unit at UCL, Institute of Clinical Trials & Methodology, 90 High Holborn, 2nd Floor, London, WC1V 6LJ UK
| | - Johann Cailhol
- Infectious and Tropical Diseases Department, Avicenne University Hospital, Bobigny, France
- Infectious and Tropical Diseases Department, Avicenne University Hospital and Paris 13 University, Bobigny, France
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Dumitrescu TP, Peddiraju K, Fu C, Bakshi K, Yu S, Zhang Z, Tenorio AR, Spancake C, Joshi S, Wolstenholme A, Adkison K. Bioequivalence and Food Effect Assessment of 2 Fixed-Dose Combination Formulations of Dolutegravir and Lamivudine. Clin Pharmacol Drug Dev 2019; 9:189-202. [PMID: 31724343 PMCID: PMC7028125 DOI: 10.1002/cpdd.740] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 08/26/2019] [Indexed: 12/14/2022]
Abstract
This single‐dose study evaluated the bioequivalence, food effect, and safety of 2 experimental, 2‐drug, fixed‐dose formulations of 50 mg dolutegravir and 300 mg lamivudine (formulation AH and formulation AK) as compared with coadministration of single‐entity tablets of 50 mg dolutegravir and 300 mg lamivudine (reference). In fasted subjects, formulation AH lamivudine exposure was similar to the reference; however, dolutegravir exposure was consistently higher in formulation AH, with area under the concentration‐time curve (AUC) and maximum concentration (Cmax) approximately 27% to 28% greater than reference. Formulation AK met bioequivalence standards to the reference for dolutegravir (AUC0‐∞ and Cmax) and lamivudine (AUC0‐∞ and AUC0‐t) exposure; however, dolutegravir AUC0‐t and lamivudine Cmax were approximately 16% and 32% higher than the reference, respectively. A high‐fat meal increased dolutegravir AUC and Cmax by up to 33% and 21%, respectively, and decreased lamivudine Cmax by approximately 30%. Both test and reference formulations were well tolerated. The results support further development of formulation AK as a novel, 2‐drug, fixed‐dose combination tablet treatment for patients with HIV.
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Affiliation(s)
- Teodora Pene Dumitrescu
- Clinical Pharmacology Modeling and Simulation, GlaxoSmithKline, Collegeville, Pennsylvania, USA
| | | | - Caifeng Fu
- PAREXEL International, Durham, North Carolina, USA
| | - Kalpana Bakshi
- Pharma R&D, GlaxoSmithKline, Collegeville, Pennsylvania, USA
| | - Shui Yu
- PAREXEL International, Durham, North Carolina, USA
| | | | - Allan R Tenorio
- Clinical Development, ViiV Healthcare, Durham, North Carolina, USA
| | - Chris Spancake
- Medicinal Science and Technology, GlaxoSmithKline, Collegeville, Pennsylvania, USA
| | | | | | - Kimberly Adkison
- Clinical Pharmacology, ViiV Healthcare, Durham, North Carolina, USA
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Lack of HIV-1 integrase inhibitor resistance among 392 antiretroviral-naïve individuals in a tertiary care hospital in Beijing, China. AIDS 2019; 33:1945-1947. [PMID: 31491787 DOI: 10.1097/qad.0000000000002282] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
: Reports of resistance to integrase strand transfer inhibitors (INSTIs) are now not uncommon. We analyzed the HIV int gene from plasma of antiretroviral-naïve individuals during acute and chronic HIV-1 infection. No individual with major INSTI mutations was identified. Two individuals harbored INSTI accessory mutations E157Q/T97A were detected for the first time. Our results emphasize the need to consider testing for INSTI resistance at baseline as this class of drugs is increasingly used in clinical routine.
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32
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Wijting IEA, Lungu C, Rijnders BJA, van der Ende ME, Pham HT, Mesplede T, Pas SD, Voermans JJC, Schuurman R, van de Vijver DAMC, Boers PHM, Gruters RA, Boucher CAB, van Kampen JJA. HIV-1 Resistance Dynamics in Patients With Virologic Failure to Dolutegravir Maintenance Monotherapy. J Infect Dis 2019; 218:688-697. [PMID: 29617822 DOI: 10.1093/infdis/jiy176] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 03/18/2018] [Indexed: 11/14/2022] Open
Abstract
Background A high genetic barrier to resistance to the integrase strand transfer inhibitor (INSTI) dolutegravir has been reported in vitro and in vivo. We describe the dynamics of INSTI resistance-associated mutations (INSTI-RAMs) and mutations in the 3'-polypurine tract (3'-PPT) in relation to virologic failure (VF) observed in the randomized Dolutegravir as Maintenance Monotherapy for HIV-1 study (DOMONO, NCT02401828). Methods From 10 patients with VF, plasma samples were collected before the start of cART and during VF, and were used to generate Sanger sequences of integrase, the 5' terminal bases of the 3' long terminal repeat (LTR), and the 3'-PPT. Results Median human immunodeficiency virus RNA load at VF was 3490 copies/mL (interquartile range 1440-4990 copies/mL). INSTI-RAMs (S230R, R263K, N155H, and E92Q+N155H) were detected in 4 patients, no INSTI-RAMs were detected in 4 patients, and sequencing of the integrase gene was unsuccessful in 2 patients. The time to VF ranged from 4 weeks to 72 weeks. In 1 patient, mutations developed in the highly conserved 3'-PPT. No changes in the terminal bases of the 3'-LTR were observed. Conclusions The genetic barrier to resistance is too low to justify dolutegravir maintenance monotherapy because single INSTI-RAMs are sufficient to cause VF. The large variation in time to VF suggests that stochastic reactivation of a preexisting provirus containing a single INSTI-RAM is the mechanism for failure. Changes in the 3'-PPT point to a new dolutegravir resistance mechanism in vivo. Clinical Trials Registration NCT02401828.
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Affiliation(s)
- Ingeborg E A Wijting
- Department of Internal Medicine and Infectious Diseases, Erasmus MC, Rotterdam, the Netherlands
| | - Cynthia Lungu
- Department of Viroscience, Erasmus MC, Rotterdam, the Netherlands
| | - Bart J A Rijnders
- Department of Internal Medicine and Infectious Diseases, Erasmus MC, Rotterdam, the Netherlands
| | - Marchina E van der Ende
- Department of Internal Medicine and Infectious Diseases, Erasmus MC, Rotterdam, the Netherlands
| | - Hanh T Pham
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Canada.,Department of Microbiology and Immunology, Faculty of Medicine, McGill University, Montreal, Canada
| | - Thibault Mesplede
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Canada.,Department of Microbiology and Immunology, Faculty of Medicine, McGill University, Montreal, Canada
| | - Suzan D Pas
- Department of Viroscience, Erasmus MC, Rotterdam, the Netherlands
| | | | - Rob Schuurman
- Division of Virology, Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, the Netherlands
| | | | | | - Rob A Gruters
- Department of Viroscience, Erasmus MC, Rotterdam, the Netherlands
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33
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Aboud M, Orkin C, Podzamczer D, Bogner JR, Baker D, Khuong-Josses MA, Parks D, Angelis K, Kahl LP, Blair EA, Adkison K, Underwood M, Matthews JE, Wynne B, Vandermeulen K, Gartland M, Smith K. Efficacy and safety of dolutegravir–rilpivirine for maintenance of virological suppression in adults with HIV-1: 100-week data from the randomised, open-label, phase 3 SWORD-1 and SWORD-2 studies. LANCET HIV 2019; 6:e576-e587. [DOI: 10.1016/s2352-3018(19)30149-3] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 04/02/2019] [Accepted: 04/18/2019] [Indexed: 11/27/2022]
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34
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Gantner P, Lee GQ, Rey D, Mesplede T, Partisani M, Cheneau C, Beck-Wirth G, Faller JP, Mohseni-Zadeh M, Martinot M, Wainberg MA, Fafi-Kremer S. Dolutegravir reshapes the genetic diversity of HIV-1 reservoirs. J Antimicrob Chemother 2019; 73:1045-1053. [PMID: 29244129 DOI: 10.1093/jac/dkx475] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 11/15/2017] [Indexed: 12/12/2022] Open
Abstract
Objectives Better understanding of the dynamics of HIV reservoirs under ART is a critical step to achieve a functional HIV cure. Our objective was to assess the genetic diversity of archived HIV-1 DNA over 48 weeks in blood cells of individuals starting treatment with a dolutegravir-based regimen. Methods Eighty blood samples were prospectively and longitudinally collected from 20 individuals (NCT02557997) including: acutely (n = 5) and chronically (n = 5) infected treatment-naive individuals, as well as treatment-experienced individuals who switched to a dolutegravir-based regimen and were either virologically suppressed (n = 5) or had experienced treatment failure (n = 5). The integrase and V3 loop regions of HIV-1 DNA isolated from PBMCs were analysed by pyrosequencing at baseline and weeks 4, 24 and 48. HIV-1 genetic diversity was calculated using Shannon entropy. Results All individuals achieved or maintained viral suppression throughout the study. A low and stable genetic diversity of archived HIV quasispecies was observed in individuals starting treatment during acute infection. A dramatic reduction of the genetic diversity was observed at week 4 of treatment in the other individuals. In these patients and despite virological suppression, a recovery of the genetic diversity of the reservoirs was observed up to 48 weeks. Viral variants bearing dolutegravir resistance-associated substitutions at integrase position 50, 124, 230 or 263 were detected in five individuals (n = 5/20, 25%) from all groups except those who were ART-failing at baseline. None of these substitutions led to virological failure. Conclusions These data demonstrate that the genetic diversity of the HIV-1 reservoir is reshaped following the initiation of a dolutegravir-based regimen and strongly suggest that HIV-1 can continue to replicate despite successful treatment.
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Affiliation(s)
- Pierre Gantner
- Virology Laboratory, Strasbourg University Hospitals, Strasbourg, France.,Strasbourg University, INSERM, UMR-S 1109, F-67000 Strasbourg, France
| | - Guinevere Q Lee
- The Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - David Rey
- Le Trait d'Union, HIV-infection care center, CHU de Strasbourg, Strasbourg, France
| | - Thibault Mesplede
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada.,Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada
| | - Marialuisa Partisani
- Le Trait d'Union, HIV-infection care center, CHU de Strasbourg, Strasbourg, France
| | - Christine Cheneau
- Le Trait d'Union, HIV-infection care center, CHU de Strasbourg, Strasbourg, France
| | - Geneviève Beck-Wirth
- Internal Medicine Department, HIV-infection care center, GHR Mulhouse Sud Alsace, Mulhouse, France
| | - Jean-Pierre Faller
- Department of Infectious Diseases, Hôpital Nord Franche Comté, Belfort, France
| | - Mahsa Mohseni-Zadeh
- Internal Medicine and Rheumatology Department, Hôpital Civil de Colmar, Colmar, France
| | - Martin Martinot
- Internal Medicine and Rheumatology Department, Hôpital Civil de Colmar, Colmar, France
| | - Mark A Wainberg
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada.,Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada
| | - Samira Fafi-Kremer
- Virology Laboratory, Strasbourg University Hospitals, Strasbourg, France.,Strasbourg University, INSERM, UMR-S 1109, F-67000 Strasbourg, France
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35
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Kamelian K, Lepik KJ, Chau W, Yip B, Zhang WW, Lima VD, Robbins MA, Woods C, Olmstead A, Joy JB, Barrios R, Harrigan PR. Prevalence of Human Immunodeficiency Virus-1 Integrase Strand Transfer Inhibitor Resistance in British Columbia, Canada Between 2009 and 2016: A Longitudinal Analysis. Open Forum Infect Dis 2019; 6:ofz060. [PMID: 30895202 PMCID: PMC6419991 DOI: 10.1093/ofid/ofz060] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 02/06/2019] [Indexed: 11/12/2022] Open
Abstract
Background Integrase strand transfer inhibitors (INSTIs) are highly efficacious and well tolerated antiretrovirals with fewer adverse side-effects relative to other classes of antiretrovirals. The use of INSTIs raltegravir, elvitegravir, and dolutegravir has increased dramatically over recent years. However, there is limited information about the evolution and prevalence of INSTI resistance mutations in clinical human immunodeficiency virus populations. Methods Human immunodeficiency virus-1-positive individuals ≥19 years were included if they received ≥1 dispensed prescription of antiretroviral therapy (ART) in British Columbia between 2009 and 2016 (N = 9358). Physician-ordered drug resistance tests were analyzed and protease inhibitor (PI), reverse-transcriptase inhibitor (RT), and INSTI resistance were defined as having ≥1 sample with a combined, cumulative score ≥30 by Stanford HIV Drug Resistance Algorithm version 7.0.1. Results Although most ART-treated individuals were tested for PI and RT resistance, INSTI resistance testing lagged behind the uptake of INSTIs among INSTI-treated individuals (11% in 2009; 34% in 2016). The prevalence of INSTI resistance was relatively low, but it increased from 1 to 7 per 1000 ART-treated individuals between 2009 and 2016 (P < .0001, R2 = 0.98). Integrase strand transfer inhibitor resistance mutations increased at integrase codons 66, 97, 140, 148, 155, and 263. Conclusions The prevalence of INSTI resistance remains low compared with PI and RT resistance in ART-treated populations but is expanding with increased INSTI use.
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Affiliation(s)
- Kimia Kamelian
- BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada.,University of British Columbia, Department of Medicine, Division of AIDS, Vancouver, Canada
| | - Katherine J Lepik
- BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada.,Pharmacy Department, St. Paul's Hospital, Vancouver, British Columbia, Canada
| | - William Chau
- BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada
| | - Benita Yip
- BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada
| | - Wendy W Zhang
- BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada.,University of British Columbia, Department of Medicine, Division of AIDS, Vancouver, Canada
| | - Viviane Dias Lima
- BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada.,University of British Columbia, Department of Medicine, Division of AIDS, Vancouver, Canada
| | - Marjorie A Robbins
- BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada
| | - Conan Woods
- BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada
| | - Andrea Olmstead
- BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada.,University of British Columbia, Department of Medicine, Division of AIDS, Vancouver, Canada
| | - Jeffrey B Joy
- BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada.,University of British Columbia, Department of Medicine, Division of AIDS, Vancouver, Canada
| | - Rolando Barrios
- BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada.,University of British Columbia, School of Population and Public Health, Vancouver, Canada
| | - P Richard Harrigan
- University of British Columbia, Department of Medicine, Division of AIDS, Vancouver, Canada
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Di Perri G, Calcagno A, Trentalange A, Bonora S. The clinical pharmacology of integrase inhibitors. Expert Rev Clin Pharmacol 2018; 12:31-44. [PMID: 30513008 DOI: 10.1080/17512433.2019.1553615] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Introduction: Treatment of HIV infection has consistently evolved in the last three decades. A steady improvement in efficacy tolerability, safety, and practical aspects of treatment intake has made HIV infection much easier to manage over the long term, and in optimal treatment conditions the life expectancy of persons living with HIV infection now approaches the values of the general population. The last category of antiretrovirals to be fully developed for clinical use is the one of strand-transfer integrase inhibitors (INSTIs). Areas covered: In this review, the evolution of the knowledge on INSTIs use in the clinical setting is reviewed, analyzed, and interpreted. Emphasis is placed on the properties possibly accounting for several superiority results achieved by INSTIs in non-inferiority designed comparative clinical trials, which led to their inclusion as first line options in all versions of HIV therapeutic guidelines. Expert commentary: Some unprecedented clinical-pharmacological properties of INSTIs, such as their rapid and sustained action against HIV replication, the optimal tolerability and safety profile and a clinically proven robust genetic barrier are the main factors justifying the successful clinical use of INSTIs. Based on these unique features, novel INSTIs-based treatment modalities are being developed, including the reduction of antiretroviral regimens to two drugs only.
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Affiliation(s)
- Giovanni Di Perri
- a The Infectious Diseases Unit, Department of Medical Sciences, School of Medicine , The University of Torino , Torino , Italy
| | - Andrea Calcagno
- a The Infectious Diseases Unit, Department of Medical Sciences, School of Medicine , The University of Torino , Torino , Italy
| | - Alice Trentalange
- a The Infectious Diseases Unit, Department of Medical Sciences, School of Medicine , The University of Torino , Torino , Italy
| | - Stefano Bonora
- a The Infectious Diseases Unit, Department of Medical Sciences, School of Medicine , The University of Torino , Torino , Italy
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37
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Oliveira M, Ibanescu RI, Anstett K, Mésplède T, Routy JP, Robbins MA, Brenner BG. Selective resistance profiles emerging in patient-derived clinical isolates with cabotegravir, bictegravir, dolutegravir, and elvitegravir. Retrovirology 2018; 15:56. [PMID: 30119633 PMCID: PMC6098636 DOI: 10.1186/s12977-018-0440-3] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 08/11/2018] [Indexed: 11/26/2022] Open
Abstract
Background Integrase strand transfer inhibitors (INSTIs) are recommended for first-line HIV therapy based on their relatively high genetic barrier to resistance. Although raltegravir (RAL) and elvitegravir (EVG) resistance profiles are well-characterized, resistance patterns for dolutegravir (DTG), bictegravir (BIC), and cabotegravir (CAB) remain largely unknown. Here, in vitro drug selections compared the development of resistance to DTG, BIC, CAB, EVG and RAL using clinical isolates from treatment-naïve primary HIV infection (PHI) cohort participants (n = 12), and pNL4.3 recombinant strains encoding patient-derived Integrase with (n = 5) and without (n = 5) the E157Q substitution. Results Patient-derived viral isolates were serially passaged in PHA-stimulated cord blood mononuclear cells in the presence of escalating concentrations of INSTIs over the course of 36–46 weeks. Drug resistance arose more rapidly in primary clinical isolates with EVG (12/12), followed by CAB (8/12), DTG (8/12) and BIC (6/12). For pNL4.3 recombinant strains encoding patient-derived integrase, the comparative genetic barrier to resistance was RAL > EVG > CAB > DTG and BIC. The E157Q substitution in integrase delayed the advent of resistance to INSTIs. With EVG, T66I/A, E92G/V/Q, T97A or R263K (n = 16, 3, 2 and 1, respectively) arose by weeks 8–16, followed by 1–4 accessory mutations, conferring high-level resistance (> 100-fold) by week 36. With DTG and BIC, solitary R263K (n = 27), S153F/Y (n = 7) H51Y (n = 2), Q146 R (n = 3) or S147G (n = 1) mutations conferred low-level (< 3-fold) resistance at weeks 36–46. Similarly, most CAB selections (n = 18) resulted in R263K, S153Y, S147G, H51Y, or Q146L solitary mutations. However, three CAB selections resulted in Q148R/K followed by secondary mutations conferring high-level cross-resistance to all INSTIs. EVG-resistant viruses (T66I/R263K, T66I/E157Q/R263K, and S153A/R263K) retained residual susceptibility when switched to DTG, BIC or CAB, losing T66I by week 27. Two EVG-resistant variants developed resistance to DTG, BIC and CAB through the additional acquisition of E138A/Q148R and S230N, respectively. One EVG-resistant variant (T66I) acquired L74M/G140S/S147G, L74M/E138K/S147G and H51Y with DTG CAB and BIC, respectively. Conclusions Second generation INSTIs show a higher genetic barrier to resistance than EVG and RAL. The potency of CAB was lower than BIC and DTG. The development of Q148R/K with CAB can result in high-level cross-resistance to all INSTIs.
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Affiliation(s)
- Maureen Oliveira
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Jewish General Hospital, 3755 Côte Ste-Catherine Road, Montreal, QC, H3T 1E2, Canada
| | - Ruxandra-Ilinca Ibanescu
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Jewish General Hospital, 3755 Côte Ste-Catherine Road, Montreal, QC, H3T 1E2, Canada
| | - Kaitlin Anstett
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Jewish General Hospital, 3755 Côte Ste-Catherine Road, Montreal, QC, H3T 1E2, Canada
| | - Thibault Mésplède
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Jewish General Hospital, 3755 Côte Ste-Catherine Road, Montreal, QC, H3T 1E2, Canada.,Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
| | - Jean-Pierre Routy
- Faculty of Medicine (Surgery, Experimental Medicine, Infectious Disease), McGill University, Montreal, QC, Canada
| | | | - Bluma G Brenner
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Jewish General Hospital, 3755 Côte Ste-Catherine Road, Montreal, QC, H3T 1E2, Canada. .,Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada. .,Faculty of Medicine (Surgery, Experimental Medicine, Infectious Disease), McGill University, Montreal, QC, Canada.
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Nanoformulated Antiretroviral Therapy Attenuates Brain Metabolic Oxidative Stress. Mol Neurobiol 2018; 56:2896-2907. [PMID: 30069830 PMCID: PMC6403019 DOI: 10.1007/s12035-018-1273-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 07/16/2018] [Indexed: 12/24/2022]
Abstract
Antiretroviral therapy (ART) restricts human immunodeficiency virus type one (HIV-1) replication and by so doing, improves the quality and longevity of life for infected people. Nonetheless, treatment can also lead to adverse clinical outcomes such as drug resistance and systemic adverse events. Both could be affected by long-acting slow effective release ART. Indeed, maintenance of sustained plasma drug levels, for weeks or months, after a single high-level dosing, could improve regimen adherence but, at the same time, affect systemic toxicities. Of these, the most troubling are those that affect the central nervous system (CNS). To address this, dolutegravir (Tivicay, DTG), a potent and durable HIV integrase inhibitor used effectively in combination ART was tested. Rodents were administered parenteral 45-mg/kg doses. DTG-associated changes in CNS homeostasis were assessed by measuring brain metabolic activities. After antiretroviral treatment, brain subregions were dissected and screened by mass spectrometry-based metabolomics. Metabolic drug-related dysregulation of energy and oxidative stress were readily observed within the cerebellum and frontal cortex following native drug administrations. Each was associated with alterations in neural homeostasis and depleted canonical oxidation protection pools that included glutathione and ascorbic acid. Surprisingly, the oxidative stress-related metabolites were completely attenuated when DTG was administered as nanoformulations. These data demonstrate the importance of formulation design in control of DTG or perhaps other antiretroviral drug-associated CNS events.
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Distribution and reduction magnitude of HIV-DNA burden in CD4+ T cell subsets depend on art initiation timing. AIDS 2018; 32:921-926. [PMID: 29424775 DOI: 10.1097/qad.0000000000001770] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The aim of our study was to analyze the dynamics of HIV-DNA levels in CD4 T-cell subsets in individuals starting successful dolutegravir-based regimens. DESIGN Twenty-seven individuals with acute infection (AI, n = 8) or chronic infection (CI, n = 5) and patients in virological success (VS, n = 10) or virological failure (VF, n = 4) on antiretroviral therapy (ART) who initiated a dolutegravir-based regimen were enrolled (NCT02557997). METHODS CD4 T-cells from baseline and week 48 of successful treatment were sorted into effector memory (TEM), transitional memory (TTM), central memory (TCM) and naïve (TN) cell groups for total HIV-DNA measurements by qPCR. Bayesian methods were used to estimate the posterior probability of a HIV-DNA decrease more than 0.25 log copies/10 cells at week 48. RESULTS All patients achieved HIV-RNA suppression at 48 weeks. At baseline and week 48, the highest contributions to the HIV-DNA-infected pool from CD4 T cells were observed in TTM cells in the AI group (62.4 and 60.2%, respectively), but in TCM cells for the CI, VS and VF groups (54.6 and 59.4%, 58.2 and 62.9%, 62.4 and 67.2%), respectively. HIV-DNA burden declined in all subsets after 48 weeks of treatment in the AI (probability (Pr) > 91%), CI (Pr > 52%) and VF (Pr > 52%) groups, but only in TEM cells in the VS group (Pr = 95%). CONCLUSION Our study showed that dolutegravir-based treatment reduced the HIV-DNA cellular burden in individuals from the AI, CI and VF groups, though the reduction levels differed between the patient subgroups. Early treated patients had the highest probability of HIV-DNA reduction. Interestingly, in the aviremic VS group, HIV-DNA reduction was limited to TEM cells.
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Rossetti B, Montagnani F, De Luca A. Current and emerging two-drug approaches for HIV-1 therapy in ART-naïve and ART-experienced, virologically suppressed patients. Expert Opin Pharmacother 2018; 19:713-738. [PMID: 29676935 DOI: 10.1080/14656566.2018.1457648] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Current guidelines recommend a 2-drug antiretroviral regimen as an alternative to triple antiretroviral therapy (ART) in selected patients to reduce long-term toxicity and costs. AREAS COVERED This review is intended to provide insight into the efficacy, safety and tolerability of 2-drug versus 3-drug ART in naïve and in treatment-experienced virologically-suppressed patients. EXPERT OPINION Dual therapy regimens are not feasible in HBV-coinfected individuals and should not be applied during pregnancy. Positive data on 2-drug ART in drug naïve patients are still limited, while, in virologically-suppressed individuals, several regimens have shown non-inferiority as compared to 3-drug regimens. The strongest evidence of efficacy applies to ritonavir-boosted PI regimens combined with lamivudine and to dolutegravir with rilpivirine. Dual therapies showed improved renal function and bone mineral density over tenofovir disoproxil fumarate-based 3-drug regimens. There are also great expectations for ongoing phase 3 trials testing dolutegravir with lamivudine. New and future single tablet co-formulations of dual regimens are expected to improve their suitability. Despite the lack of comparison with tenofovir alafenamide-based 3-drug regimens, the 2-drug regimens showing consistent non-inferiority and safety versus 3-drug regimens will challenge the current paradigm of 3-drug ART.
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Affiliation(s)
- Barbara Rossetti
- a Infectious Diseases Unit, Hospital Department of Specialized and Internal Medicine , University Hospital of Siena , Siena , Italy.,b Clinic of Infectious Diseases , Catholic University of Sacred Heart , Rome , Italy
| | - Francesca Montagnani
- a Infectious Diseases Unit, Hospital Department of Specialized and Internal Medicine , University Hospital of Siena , Siena , Italy.,c Department of Medical Biotechnologies, Infectious Diseases Division , University of Siena , Siena , Italy
| | - Andrea De Luca
- a Infectious Diseases Unit, Hospital Department of Specialized and Internal Medicine , University Hospital of Siena , Siena , Italy.,c Department of Medical Biotechnologies, Infectious Diseases Division , University of Siena , Siena , Italy
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van Zyl G, Bale MJ, Kearney MF. HIV evolution and diversity in ART-treated patients. Retrovirology 2018; 15:14. [PMID: 29378595 PMCID: PMC5789667 DOI: 10.1186/s12977-018-0395-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 01/18/2018] [Indexed: 12/21/2022] Open
Abstract
Characterizing HIV genetic diversity and evolution during antiretroviral therapy (ART) provides insights into the mechanisms that maintain the viral reservoir during ART. This review describes common methods used to obtain and analyze intra-patient HIV sequence data, the accumulation of diversity prior to ART and how it is affected by suppressive ART, the debate on viral replication and evolution in the presence of ART, HIV compartmentalization across various tissues, and mechanisms for the emergence of drug resistance. It also describes how CD4+ T cells that were likely infected with latent proviruses prior to initiating treatment can proliferate before and during ART, providing a renewable source of infected cells despite therapy. Some expanded cell clones carry intact and replication-competent proviruses with a small fraction of the clonal siblings being transcriptionally active and a source for residual viremia on ART. Such cells may also be the source for viral rebound after interrupting ART. The identical viral sequences observed for many years in both the plasma and infected cells of patients on long-term ART are likely due to the proliferation of infected cells both prior to and during treatment. Studies on HIV diversity may reveal targets that can be exploited in efforts to eradicate or control the infection without ART.
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Affiliation(s)
- Gert van Zyl
- Division of Medical Virology, Stellenbosch University and NHLS Tygerberg, Cape Town, South Africa
| | - Michael J Bale
- HIV Dynamic and Replication Program, Center for Cancer Research, National Cancer Institute at Frederick, 1050 Boyles Street, Building 535, Room 109, Frederick, MD, 21702-1201, USA
| | - Mary F Kearney
- HIV Dynamic and Replication Program, Center for Cancer Research, National Cancer Institute at Frederick, 1050 Boyles Street, Building 535, Room 109, Frederick, MD, 21702-1201, USA.
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Brenner BG, Ibanescu RI, Oliveira M, Roger M, Hardy I, Routy JP, Kyeyune F, Quiñones-Mateu ME, Wainberg MA. HIV-1 strains belonging to large phylogenetic clusters show accelerated escape from integrase inhibitors in cell culture compared with viral isolates from singleton/small clusters. J Antimicrob Chemother 2018; 72:2171-2183. [PMID: 28472323 PMCID: PMC7263826 DOI: 10.1093/jac/dkx118] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 03/22/2017] [Indexed: 12/20/2022] Open
Abstract
Objectives: Viral phylogenetics revealed two patterns of HIV-1 spread among
MSM in Quebec. While most HIV-1 strains (n = 2011) were
associated with singleton/small clusters (cluster size 1–4), 30 viral lineages formed
large networks (cluster size 20–140), contributing to 42% of diagnoses between 2011 and
2015. Herein, tissue culture selections ascertained if large cluster lineages possessed
higher replicative fitness than singleton/small cluster isolates, allowing for viral
escape from integrase inhibitors. Methods: Primary HIV-1 isolates from large 20+ cluster
(n = 11) or singleton/small cluster
(n = 6) networks were passagedin
vitro in escalating concentrations of dolutegravir, elvitegravir and lamivudine
for 24–36 weeks. Sanger and deep sequencing assessed genotypic changes under selective
drug pressure. Results: Large cluster HIV-1 isolates selected for resistance to
dolutegravir, elvitegravir and lamivudine faster than HIV-1 strains forming small
clusters. With dolutegravir, large cluster HIV-1 variants acquired solitary R263K
(n = 7), S153Y
(n = 1) or H51Y
(n = 1) mutations as the dominant quasi-species within
8–12 weeks as compared with small cluster lineages where R263K
(n = 1/6), S153Y (1/6) or WT species (4/6) were
observed after 24 weeks. Interestingly, dolutegravir-associated mutations compromised
viral replicative fitness, precluding escalations in concentrations beyond 5–10 nM. With
elvitegravir, large cluster variants more rapidly acquired first mutations (T66I, A92G,
N155H or S147G) by week 8 followed by sequential accumulation of multiple mutations
leading to viral escape (>10 μM) by week 24. Conclusions: Further studies are needed to understand virological features of
large cluster viruses that may favour their transmissibility, replicative competence and
potential to escape selective antiretroviral drug pressure.
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Affiliation(s)
- Bluma G Brenner
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada
| | - Ruxandra-Ilinca Ibanescu
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada
| | - Maureen Oliveira
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada
| | - Michel Roger
- Département de Microbiologie et d'Immunologie et Centre de Recherche du Centre hospitalier de l'Université de Montréal (CHUM), Montréal, Québec, Canada
| | - Isabelle Hardy
- Département de Microbiologie et d'Immunologie et Centre de Recherche du Centre hospitalier de l'Université de Montréal (CHUM), Montréal, Québec, Canada
| | | | - Fred Kyeyune
- Departments of Molecular Biology and Microbiology, Case Western Reserve University, Cleveland, OH, USA
| | - Miguel E Quiñones-Mateu
- Department of Pathology, Case Western Reserve University, Cleveland, OH, USA.,University Hospitals Translational Laboratory, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Mark A Wainberg
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada
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Fun A, Leitner T, Vandekerckhove L, Däumer M, Thielen A, Buchholz B, Hoepelman AIM, Gisolf EH, Schipper PJ, Wensing AMJ, Nijhuis M. Impact of the HIV-1 genetic background and HIV-1 population size on the evolution of raltegravir resistance. Retrovirology 2018; 15:1. [PMID: 29304821 PMCID: PMC5755036 DOI: 10.1186/s12977-017-0384-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 12/23/2017] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Emergence of resistance against integrase inhibitor raltegravir in human immunodeficiency virus type 1 (HIV-1) patients is generally associated with selection of one of three signature mutations: Y143C/R, Q148K/H/R or N155H, representing three distinct resistance pathways. The mechanisms that drive selection of a specific pathway are still poorly understood. We investigated the impact of the HIV-1 genetic background and population dynamics on the emergence of raltegravir resistance. Using deep sequencing we analyzed the integrase coding sequence (CDS) in longitudinal samples from five patients who initiated raltegravir plus optimized background therapy at viral loads > 5000 copies/ml. To investigate the role of the HIV-1 genetic background we created recombinant viruses containing the viral integrase coding region from pre-raltegravir samples from two patients in whom raltegravir resistance developed through different pathways. The in vitro selections performed with these recombinant viruses were designed to mimic natural population bottlenecks. RESULTS Deep sequencing analysis of the viral integrase CDS revealed that the virological response to raltegravir containing therapy inversely correlated with the relative amount of unique sequence variants that emerged suggesting diversifying selection during drug pressure. In 4/5 patients multiple signature mutations representing different resistance pathways were observed. Interestingly, the resistant population can consist of a single resistant variant that completely dominates the population but also of multiple variants from different resistance pathways that coexist in the viral population. We also found evidence for increased diversification after stronger bottlenecks. In vitro selections with low viral titers, mimicking population bottlenecks, revealed that both recombinant viruses and HXB2 reference virus were able to select mutations from different resistance pathways, although typically only one resistance pathway emerged in each individual culture. CONCLUSIONS The generation of a specific raltegravir resistant variant is not predisposed in the genetic background of the viral integrase CDS. Typically, in the early phases of therapy failure the sequence space is explored and multiple resistance pathways emerge and then compete for dominance which frequently results in a switch of the dominant population over time towards the fittest variant or even multiple variants of similar fitness that can coexist in the viral population.
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Affiliation(s)
- Axel Fun
- Department of Medical Microbiology, Virology, University Medical Center Utrecht, Heidelberglaan 100, HP G04.614, 3584 CX, Utrecht, The Netherlands
| | - Thomas Leitner
- Theoretical Biology and Biophysics, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Linos Vandekerckhove
- Department of General Internal Medicine and Infectious Diseases, Ghent University Hospital, Ghent, Belgium
| | - Martin Däumer
- Institute of Immunology and Genetics, Kaiserslautern, Germany
| | | | - Bernd Buchholz
- Pediatric Clinic, University Medical Center Mannheim, Mannheim, Germany
| | - Andy I M Hoepelman
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Elizabeth H Gisolf
- Department of Internal Medicine, Rijnstate Hospital, Arnhem, The Netherlands
| | - Pauline J Schipper
- Department of Medical Microbiology, Virology, University Medical Center Utrecht, Heidelberglaan 100, HP G04.614, 3584 CX, Utrecht, The Netherlands
| | - Annemarie M J Wensing
- Department of Medical Microbiology, Virology, University Medical Center Utrecht, Heidelberglaan 100, HP G04.614, 3584 CX, Utrecht, The Netherlands.,Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Monique Nijhuis
- Department of Medical Microbiology, Virology, University Medical Center Utrecht, Heidelberglaan 100, HP G04.614, 3584 CX, Utrecht, The Netherlands.
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Brenner BG, Ibanescu RI, Hardy I, Roger M. Genotypic and Phylogenetic Insights on Prevention of the Spread of HIV-1 and Drug Resistance in "Real-World" Settings. Viruses 2017; 10:v10010010. [PMID: 29283390 PMCID: PMC5795423 DOI: 10.3390/v10010010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 12/22/2017] [Accepted: 12/24/2017] [Indexed: 12/15/2022] Open
Abstract
HIV continues to spread among vulnerable heterosexual (HET), Men-having-Sex with Men (MSM) and intravenous drug user (IDU) populations, influenced by a complex array of biological, behavioral and societal factors. Phylogenetics analyses of large sequence datasets from national drug resistance testing programs reveal the evolutionary interrelationships of viral strains implicated in the dynamic spread of HIV in different regional settings. Viral phylogenetics can be combined with demographic and behavioral information to gain insights on epidemiological processes shaping transmission networks at the population-level. Drug resistance testing programs also reveal emergent mutational pathways leading to resistance to the 23 antiretroviral drugs used in HIV-1 management in low-, middle- and high-income settings. This article describes how genotypic and phylogenetic information from Quebec and elsewhere provide critical information on HIV transmission and resistance, Cumulative findings can be used to optimize public health strategies to tackle the challenges of HIV in “real-world” settings.
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Affiliation(s)
- Bluma G Brenner
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Montreal, QC H3T 1E2, Canada.
| | - Ruxandra-Ilinca Ibanescu
- McGill University AIDS Centre, Lady Davis Institute for Medical Research, Montreal, QC H3T 1E2, Canada.
| | - Isabelle Hardy
- Département de Microbiologie et d'Immunologie et Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, QC H2X 0A9, Canada.
| | - Michel Roger
- Département de Microbiologie et d'Immunologie et Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, QC H2X 0A9, Canada.
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Raizes E, Hader S, Birx D. Expansion of Viral Load Testing and the Potential Impact on HIV Drug Resistance. J Infect Dis 2017; 216:S805-S807. [PMID: 29206999 DOI: 10.1093/infdis/jix432] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The US President's Emergency Plan for AIDS Relief (PEPFAR) supports aggressive scale-up of antiretroviral therapy (ART) in high-burden countries and across all genders and populations at risk toward global human immunodeficiency virus (HIV) epidemic control. PEPFAR recognizes the risk of HIV drug resistance (HIVDR) as a consequence of aggressive ART scale-up and is actively promoting 3 key steps to mitigate the impact of HIVDR: (1) routine access to routine viral load monitoring in all settings; (2) optimization of ART regimens; and (3) routine collection and analysis of HIVDR data to monitor the success of mitigation strategies. The transition to dolutegravir-based regimens in PEPFAR-supported countries and the continuous evolution of HIVDR surveillance strategies are essential elements of PEPFAR implementation.
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Affiliation(s)
- Elliot Raizes
- Division of Global HIV and Tuberculosis, Centers for Disease Control and Prevention
| | - Shannon Hader
- Division of Global HIV and Tuberculosis, Centers for Disease Control and Prevention
| | - Deborah Birx
- Office of the US Global AIDS Coordinator, US Department of State
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Gatell JM, Assoumou L, Moyle G, Waters L, Johnson M, Domingo P, Fox J, Martinez E, Stellbrink H, Guaraldi G, Masia M, Gompels M, De Wit S, Florence E, Esser S, Raffi F, Pozniak AL. Switching from a ritonavir-boosted protease inhibitor to a dolutegravir-based regimen for maintenance of HIV viral suppression in patients with high cardiovascular risk. AIDS 2017; 31:2503-2514. [PMID: 29112070 PMCID: PMC5690310 DOI: 10.1097/qad.0000000000001675] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 09/10/2017] [Accepted: 09/25/2017] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To compare the efficacy, safety, and impact on lipid fractions of switching from a ritonavir-boosted protease inhibitor (PI/r) to a dolutegravir (DTG) regimen. METHODS HIV type 1-infected adults more than 50 years or with a Framingham score more than 10% were eligible if plasma HIV RNA less than 50 copies per ml for at least 24 weeks while on a PI/r regimen. Patients were randomized to switch to DTG or to remain on PI/r. Primary endpoints were: proportion maintaining HIV RNA less than 50 copies per ml and percentage change from baseline of total cholesterol at week 48. RESULTS In total, 415 patients (32 sites in six European countries) were randomized: 205 to DTG and 210 to continue PI/r. About 89% were men, 87% more than 50 years, 74% had a Framingham score more than 10%, with a median CD4 cell count of 617 cells per μl and suppressed viremia for a median of 5 years. At week 48, in the intent-to-treat analysis, treatment success rate was 93.1% in DTG group and 95.2% in PI/r group (difference -2.1%, 95% confidence interval -6.6 to 2.4, noninferiority demonstrated). There were four virological failures with DTG and one with PI/r with no emergent resistance mutations. There was no significant difference in severe adverse events or grade 3 or 4 adverse events or treatment modifying adverse events. Total cholesterol and other lipid fractions (except high-density lipoprotein cholesterol) improved significantly (P < 0.001) in the DTG group regardless of PI/r at baseline. CONCLUSION Switching to a DTG regimen in virologically suppressed HIV type 1 patients with high cardiovascular disease risk was noninferior, and significantly improved lipid profiles.
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Affiliation(s)
- José M. Gatell
- Hospital Clinic/IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Lambert Assoumou
- INSERM, Institut Pierre Louis d’épidémiologie et de Santé Publique (IPLESP UMRS 1136), Sorbonne Universités, UPMC Univ Paris 06, Paris, France
| | - Graeme Moyle
- St Stephens AIDS Trust, Chelsea and Westminster Hospital
| | | | | | | | - Julie Fox
- Guys and St. Thomas Hospital, London, UK
| | - Esteban Martinez
- Hospital Clinic/IDIBAPS, University of Barcelona, Barcelona, Spain
| | | | | | | | | | - Stephane De Wit
- Saint Pierre Hospital, Université Libre de Bruxelles, Brussels
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Meeting the WHO 90% target: antiretroviral treatment efficacy in Poland is associated with baseline clinical patient characteristics. J Int AIDS Soc 2017; 20:21847. [PMID: 28715160 PMCID: PMC5577695 DOI: 10.7448/ias.20.1.21847] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Introduction: Modern combined antiretroviral therapies (cART) allow to effectively suppress HIV-1 viral load, with the 90% virologic success rate, meeting the WHO target in most clinical settings. The aim of this study was to analyse antiretroviral treatment efficacy in Poland and to identify variables associated with virologic suppression. Methods: Cross-sectional data on 5152 (56.92% of the countrywide treated at the time-point of analysis) patients on cART for more than six months with at least one HIV-RNA measurement in 2016 were collected from 14 Polish centres. Patients’ characteristics and treatment type-based outcomes were analysed for the virologic suppression thresholds of <50 and <200 HIV-RNA copies/ml. CART was categorized into two nucleos(t)ide (2NRTI) plus non-nucleoside reverse transcriptase (NNRTI) inhibitors, 2NRTI plus protease (PI) inhibitor, 2NRTI plus integrase (InI) inhibitor, nucleos(t)ide sparing PI/r+InI and three drug class regimens. For statistics Chi-square and U-Mann Whitney tests and adjusted multivariate logistic regression models were used. Results: Virologic suppression rates of <50 copies/mL were observed in 4672 (90.68%) and <200 copies/mL in 4934 (95.77%) individuals. In univariate analyses, for the suppression threshold <50 copies/mL higher efficacy was noted for 2NRTI+NNRTI-based combinations (94.73%) compared to 2NRTI+PI (89.93%), 2NRTI+InI (90.61%), nucleos(t)ide sparing PI/r+InI (82.02%) and three drug class regimens (74.49%) (p < 0.0001), with less pronounced but significant differences for the threshold of 200 copies/mL [2NRTI+NNRTI-97.61%, 2NRTI+PI-95.27%, 2NRTI+InI-96.61%, PI/r+InI- 95.51% and 86.22% for three drug class cART) (p < 0.0001). However, in multivariate model, virologic efficacy for viral load <50 copies/mL was similar across treatment groups with significant influence by history of AIDS [OR:1.48 (95%CI:1.01–2.17) if AIDS diagnosed, p = 0.046], viral load < 5 log copies/mL at care entry [OR:1.47 (95%CI:1.08–2.01), p = 0.016], baseline lymphocyte CD4 count ≥200 cells/µL [OR:1.72 (95%CI:1.04–2.78), p = 0.034] and negative HCV serology [OR:1.97 (95%CI:1.29–2.94), p = 0.002]. For viral load threshold <200 copies/mL higher likelihood of virologic success was only associated with baseline lymphocyte CD4 count ≥200 cells/µL [OR:2.08 (95%CI:1.01–4.35), p = 0.049] and negative HCV status [OR:2.84 (95%CI:1.52–5.26), p = 0.001]. Conclusions: Proportion of virologically suppressed patients is in line with WHO treatment target confirming successful application of antiretroviral treatment strategy in Poland. Virological suppression rates depend on baseline patient characteristics, which should guide individualized antiretroviral tre0atment decisions.
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Kanthula R, Rossouw TM, Feucht UD, van Dyk G, Beck IA, Silverman R, Olson S, Salyer C, Cassol S, Frenkel LM. Persistence of HIV drug resistance among South African children given nevirapine to prevent mother-to-child-transmission. AIDS 2017; 31:1143-1148. [PMID: 28301421 PMCID: PMC5884446 DOI: 10.1097/qad.0000000000001446] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVES We set out to examine the prevalence and persistence of mutations conferring high-level nonnucleoside reverse transcriptase (NNRTI)-resistance in a cohort of HIV-infected children who had failed prophylaxis to prevent mother-to-child-transmission (PMTCT). DESIGN A prospective observational cohort study at the Pediatric HIV Clinic at Kalafong Provincial Tertiary Hospital in Pretoria, South Africa. METHODS Children referred for initiation of antiretroviral therapy (ART) were enrolled from July 2010 through February 2013. HIV drug resistance testing was performed using the oligonucleotide ligation assay (OLA) on dried blood spots (DBS) collected at enrolment and monthly follow-up visits for 2 years. RESULTS South African children who failed HIV-prophylaxis had a high prevalence of NNRTI-resistant HIV (46/88; 52%). Among children with NNRTI-resistance, the frequency of the predominant resistant variant in each child's HIV-quasispecies was high (median 96%) at study entry (median age 7.5 months), and in 26 out of 27 followed a median of 13 months persisted at a high frequency (median 89%). CONCLUSION Our finding that infants who fail HIV-prophylaxis frequently have long-lived NNRTI-resistant HIV suggests that resistance will likely persist through 36 months of age, when children qualify for NNRTI-based ART. These children may benefit from HIV drug resistance testing to guide selection of their treatment.
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Affiliation(s)
- Ruth Kanthula
- University of Washington, Washington, USA
- Seattle Children’s Research Institute, Seattle, Washington, USA
| | | | | | | | - Ingrid A. Beck
- Seattle Children’s Research Institute, Seattle, Washington, USA
| | | | - Scott Olson
- University of Washington, Washington, USA
- Seattle Children’s Research Institute, Seattle, Washington, USA
| | - Christen Salyer
- Seattle Children’s Research Institute, Seattle, Washington, USA
| | | | - Lisa M. Frenkel
- University of Washington, Washington, USA
- Seattle Children’s Research Institute, Seattle, Washington, USA
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A Complex but Exciting Future: New Options for Second-Line Antiretroviral Therapy. CURRENT TROPICAL MEDICINE REPORTS 2017. [DOI: 10.1007/s40475-017-0097-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
To complete its life cycle, HIV-1 enters the nucleus of the host cell as reverse-transcribed viral DNA. The nucleus is a complex environment, in which chromatin is organized to support different structural and functional aspects of cell physiology. As such, it represents a challenge for an incoming viral genome, which needs to be integrated into cellular DNA to ensure productive infection. Integration of the viral genome into host DNA depends on the enzymatic activity of HIV-1 integrase and involves different cellular factors that influence the selection of integration sites. The selection of integration site has functional consequences for viral transcription, which usually follows the integration event. However, in resting CD4+ T cells, the viral genome can be silenced for long periods of time, which leads to the generation of a latent reservoir of quiescent integrated HIV-1 DNA. Integration represents the only nuclear event in the viral life cycle that can be pharmacologically targeted with current therapies, and the aspects that connect HIV-1 nuclear entry to HIV-1 integration and viral transcription are only beginning to be elucidated.
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