HIV Pipeline 2017: Targets in the HIV Lifecycle Targets in the HIV Lifecycle 1 HIV Attaches to a CD4 Cell
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Kan Lu, PharmD New Antiretrovirals for Based on a presentation at prn by Roy M. Gulick, md, mph the Treatment of HIV: Kan Lu, PharmD | Drug Development Fellow University of North Carolina School of Pharmacy Chapel Hill, North Carolina The View in 2006 Roy M. Gulick, md, mph Reprinted from The prn Notebook® | october 2006 | Dr. James F. Braun, Editor-in-Chief Director, Cornell Clinical Trials Unit | Associate Professor of Medicine, Meri D. Pozo, PhD, Managing Editor. Published in New York City by the Physicians’ Research Network, Inc.® Weill Medical College of Cornell University | New York, New York John Graham Brown, Executive Director. For further information and other articles available online, visit http://www.prn.org | All rights reserved. ©october 2006 substantial progress continues to be made in the arena of cokinetics and a long extracellular half-life of approximately 10 hours antiretroviral drug development. prn is again proud to present its annual (Zhu, 2003). During apricitabine’s development, a serious drug interac- review of the experimental agents to watch for in the coming months and tion with lamivudine (Epivir) was noted. Although the plasma years. This year’s review is based on a lecture by Dr. Roy M. Gulick, a long- concentrations of apricitabine were unaffected by coadministration of time friend of prn, and no stranger to the antiretroviral development lamivudine, the intracellular concentrations of apricitabine were reduced pipeline. by approximately sixfold. Additionally, the 50% inhibitory concentration To date, twenty-two antiretrovirals have been approved by the Food (ic50) of apricitabine against hiv with the M184V mutation was increased and Drug Administration (fda) for the treatment of hiv infection. -
The Design, Synthesis and Optimization of Allosteric Hiv-1
THE DESIGN, SYNTHESIS AND OPTIMIZATION OF ALLOSTERIC HIV-1 INTEGRASE INHIBITORS DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By Janet Antwi Graduate Program in Pharmaceutical Sciences The Ohio State University 2017 Dissertation Committee: Professor James R. Fuchs, Advisor Professor Werner Tjarks Professor Karl A. Werbovetz Copyright by Janet Antwi 2017 Abstract In the past quarter century, there has been tremendous progress in the discovery of antiretroviral therapy, making HIV/AIDS a manageable chronic disease. However, the HIV virus is relentless and continues to evolve under drug pressure to escape control and continue infection. The enzyme HIV integrase is responsible for the incorporation of viral double stranded DNA into a host chromosomal DNA and has recently become an attractive target in combating HIV resistance. Raltegravir (RAL), elvitegravir (EVG) and dolutegravir (DTG) are three clinically approved active-site integrase inhibitors. Unfortunately, mutations of the enzyme observed in patients have resulted in resistance to thedrug in the clinic. A new approach to targeting integrase (IN) is the development of allosteric inhibitors that specifically target the protein-protein interaction between IN and its cellular cofactor LEDGF/p75. Recently discovered quinoline-based allosteric integrase inhibitor (ALLINI) B1224436 was the first compound to advance into clinical trials but was discontinued due to poor pharmacokinetic properties including low in vivo clearance. In addition, several reports have revealed the emergence of resistance due to mutation to quinoline based ALLINIs. Applying scaffold hopping approach, several pyridine-based, thiophenes, ii pyrazoles, isoquinolines and other heteroaromatic cores have been studied as ALLINIs. -
Tim Horn Deputy Executive Director, HIV & HCV Programs Treatment
Tim Horn Deputy Executive Director, HIV & HCV Programs Treatment Action Group NASTAD Prevention and Care Technical Assistance Meeting Washington, DC July 19, 2017 ▪ Pipeline is robust! ▪ Several drugs, coformulations, and biologics in late-stage development and Phase I trials ▪ Trends are clear ▪ Maximizing safety and efficacy of three-drug regimens ▪ Validating two-drug regimens as durable maintenance therapy and, potentially, for PLWHIV starting treatment for the first time ▪ Advancing long-acting and extended release products ▪ Development new drugs and biologics for multi-drug/class-resistant HIV ▪ Cost considerations in high- and middle-income countries Compound Class/Type Company Status DRUGS Isentress HD INSTI Merck FDA Approved 5/30/17 Bictegravir plus TAF/FTC INSTI plus NtRTI & NRTI Gilead Phase III; mid-2018 approval Doravirine (plus TDF/3TC) NNRTI (plus NtRTI & NRTI) Merck Phase III; mid-2018 approval Darunavir plus cobicistat, PI plus PK booster, NtRTI & Janssen Phase III; mid-2018 approval TAF & FTC NRTI Dolutegravir plus rilpivirine INSTI plus NNRTI ViiV/Jansse Phase III; early 2018 approval n Dolutegravir plus lamivudine INSTI plus NRTI ViiV Phase III; late 2018 approval BIOLOGICS Ibalizumab Entry Inhibitor TaiMed Phase III; late 2017 or early Biologics 2018 Compound Class/Type Company Status DRUGS LA Cabotegravir + INSTI + NNRTI ViiV/ Phase III LA Rilpivirine Janssen Albuvirtide Fusion Inhibitor Frontier Phase III; China is primary Biologics launch target Fostemsavir CD4 attachment inhibitor ViiV Phase III Elsulfavirine -
The Future of HIV Prevention and Treatment for Youth #Strive2optimize
THE AMERICAN ACADEMY OF HIV MEDICINE www.aahivm.org DECEMBER 2019 Patient Care, Practice Management & Professional Development Information for HIV Care Providers HIVSpecialist Integrating Transgender Healthcare for 24 The Future of Adolescents Not Your Parents’ HIV Prevention and Sex Talks 30 Treatment for Youth Adapting the Clinical Response 34 Fear of Addressing Substance Use and 36 Addiction DURABLE POWER AT PRESCRIBED REGIMEN FOR HIV-1 TREATMENT WEEK 144 Source: Ipsos Healthcare US HIV Therapy Monitor & Scope Study May-July 2019. BIKTARVY® (bictegravir 50 mg, emtricitabine 200 mg, and tenofovir alafenamide 25 mg) combines the FTC/TAF* backbone with bictegravir, a novel and unboosted INSTI—for a powerful STR1,2 Learn more about the BIKTARVY 144 week data at BIKTARVY144.com Long-term e cacy in treatment-naïve adults at Week 1442-7 Results noninferior to comparators No treatment-emergent resistance associated with BIKTARVY through Week 1442-7 Study 1489: Virologic Response Study 1490: Virologic Response Week 48 Week 144 Week 48 Week 144 -0.6% (-4.8% to -2.6% (-8.5% to -3.5% (-7.9% to -1.9% (-7.8% to 1.0%; p=0.12)† 3.9%; p=0.52)† 100 3.6%; p=0.78)† 3.4%; p=0.39)† 100 HIV-1 RNA HIV-1 RNA <50 copies/mL <50 copies/mL % % % 92 93 % 93 80 % 80 89 % CASES 82% 84 82% 84 OF RESISTANCE WITH 60 60 BIKTARVY ve Adults, % Adults, ve ve Adults, % Adults, ve ï ï 0 40 40 In two large phase 3 clinical trials in treatment-naïve adults 20 20 • Among 634 treatment-naïve adults in Studies 1489 and 1490, 8 treatment-failure subjects were Treatment-Na Treatment-Na 0 0 tested and no amino acid substitutions emerged that were associated with BIKTARVY resistance Virologic failure Virologic failure HIV-1 RNA 1% 3% 1% 3% HIV-1 RNA 4% 1% 5% 3% ≥50 copies/mL ≥50 copies/mL BIKTARVY ABC/DTG/3TC BIKTARVY FTC/TAF+DTG urine glucose, and urine protein in all patients (n=314) (n=315) (n=320) (n=325) IMPORTANT SAFETY INFORMATION (cont’d) Contraindications as clinically appropriate. -
Reviewing HIV-1 Gag Mutations in Protease Inhibitors Resistance: Insights for Possible Novel Gag Inhibitor Designs
molecules Review Reviewing HIV-1 Gag Mutations in Protease Inhibitors Resistance: Insights for Possible Novel Gag Inhibitor Designs Chinh Tran-To Su 1, Darius Wen-Shuo Koh 1 and Samuel Ken-En Gan 1,2,* 1 Antibody & Product Development Lab, Bioinformatics Institute, A*STAR, Singapore 138671, Singapore 2 p53 Laboratory, A*STAR, Singapore 138648, Singapore * Correspondence: [email protected]; Tel.: +65-6478-8417; Fax: +65-6478-9047 Academic Editor: Keykavous Parang Received: 23 August 2019; Accepted: 4 September 2019; Published: 6 September 2019 Abstract: HIV protease inhibitors against the viral protease are often hampered by drug resistance mutations in protease and in the viral substrate Gag. To overcome this drug resistance and inhibit viral maturation, targeting Gag alongside protease rather than targeting protease alone may be more efficient. In order to successfully inhibit Gag, understanding of its drug resistance mutations and the elicited structural changes on protease binding needs to be investigated. While mutations on Gag have already been mapped to protease inhibitor resistance, there remain many mutations, particularly the non-cleavage mutations, that are not characterized. Through structural studies to unravel how Gag mutations contributes to protease drug resistance synergistically, it is thus possible to glean insights to design novel Gag inhibitors. In this review, we discuss the structural role of both novel and previously reported Gag mutations in PI resistance, and how new Gag inhibitors can be designed. Keywords: HIV-1 Gag; Gag inhibitors; protease; protease inhibitors; drug resistance mutations; drug design 1. Introduction Many anti-HIV drugs interfere directly with the viral life cycle by targeting key viral enzymes [1], e.g., reverse transcriptase inhibitors [2,3], integrase inhibitors [4,5], and protease inhibitors [6,7]. -
Mutational Studies of Novel Screened Molecules Against Wild and Mutated HIV-1 Integrase Using Molecular Docking Studies Pawan Gupta1,2*, Prabha Garg2
Research Article Mutational studies of novel screened molecules against wild and mutated HIV-1 integrase using molecular docking studies Pawan Gupta1,2*, Prabha Garg2 ABSTRACT Background and Aim: The screened molecules which proposed novel HIV-1 integrase inhibitors were collected from the literature. Mutational studies were performed to check whether these molecules are having good binding affinity against mutated HIV-1 IN or not using molecular docking technique. Materials and Methods: First, homology models of the mutated HIV-1 IN were prepared and subsequently all the models were refined and optimized in MODELLER program. Next, molecular docking studies were performed into the active site of mutated HIV-1 IN models using the proposed inhibitors in AutoDock 4.1 program. The results of these studies were compared with the wild type docking studies. Results: The docking studies were found that some of the screened molecules (ZINC1245110, 131614, 92749, ZINC05181828, and ZINC13147504) followed the same binding patterns (in term of locations, interactions, and binding score) as found with wild type HIV-1 IN. Conclusions: Computationally, the same binding patterns were exhibited by these molecules (ZINC1245110, 131614, 92749, ZINC05181828, and ZINC13147504) against mutated models as wild type. This elucidated that these molecules having susceptibility against the drug-resistant HIV-1 IN. Hence, these molecules may be used as a starting point to design novel inhibitors against mutated HIV-1 IN, which need to be confirmed experimentally. KEY WORDS: Docking, Drug resistance, Homology modeling, HIV-1 integrase, Mutation INTRODUCTION Drug resistance is the inevitable consequence of incomplete suppression of HIV-1 replication. The Human immuno-virus (HIV) causes AIDS. -
Bictegravir-Tenofovir Alafenamide-Emtricitabine (Biktarvy)
© National HIV Curriculum PDF created September 25, 2021, 12:10 pm Bictegravir-Tenofovir alafenamide-Emtricitabine (Biktarvy) Table of Contents Bictegravir-Tenofovir alafenamide-Emtricitabine Biktarvy Summary Drug Summary Key Clinical Trials Key Drug Interactions Figures Drug Summary Bictegravir-tenofovir alafenamide-emtricitabine is a single-tablet regimen that is comprised of an integrase strand transfer inhibitor (bictegravir) combined with two nucleoside reverse transcriptase inhibitors (tenofovir alafenamide and emtricitabine). Bictegravir, which is not FDA-approved as an individual antiretroviral medication, has a high barrier to resistance, is well tolerated, and, extrapolating from the phase 3 data, has virologic efficacy comparable to dolutegravir. Bictegravir levels can be reduced with medications or oral supplement that contain polyvalent cations (e.g. Ca, Mg, Al, Fe). Bictegravir blocks tubular secretion of creatinine and typically raises serum creatinine by about 0.1 mg/dL, but without affecting renal glomerular function. Phase 3 trials in antiretroviral-naïve persons as well as switch trials in persons with virologic suppression have shown excellent efficacy with bictegravir-tenofovir alafenamide-emtricitabine. Available data suggest that bictegravir has a high genetic barrier to resistance. Key Clinical Trials In a phase 3 trial, 629 antiretroviral-naïve adults were randomized to receive bictegravir-tenofovir alafenamide-emtricitabine or dolutegravir-abacavir-lamivudine; after 48 weeks, there was no significant difference -
Guidelines for the Use of Antiretroviral Agents in Adults and Adolescent Living With
Guidelines for the Use of Antiretroviral Agents in Adults and Adolescents with HIV Developed by the DHHS Panel on Antiretroviral Guidelines for Adults and Adolescents – A Working Group of the Office of AIDS Research Advisory Council (OARAC) How to Cite the Adult and Adolescent Guidelines: Panel on Antiretroviral Guidelines for Adults and Adolescents. Guidelines for the Use of Antiretroviral Agents in Adults and Adolescents with HIV. Department of Health and Human Services. Available at https://clinicalinfo.hiv.gov/sites/default/files/guidelines/documents/ AdultandAdolescentGL.pdf. Accessed [insert date] [insert page number, table number, etc. if applicable] It is emphasized that concepts relevant to HIV management evolve rapidly. The Panel has a mechanism to update recommendations on a regular basis, and the most recent information is available on the HIVinfo Web site (http://hivinfo.nih.gov). What’s New in the Guidelines? August 16, 2021 Hepatitis C Virus/HIV Coinfection • Table 18 of this section has been updated to include recommendations regarding concomitant use of fostemsavir or long acting cabotegravir plus rilpivirine with different hepatitis C treatment regimens. June 3, 2021 What to Start • Since the release of the last guidelines, updated data from the Botswana Tsepamo study have shown that the prevalence of neural tube defects (NTD) associated with dolutegravir (DTG) use during conception is much lower than previously reported. Based on these new data, the Panel now recommends that a DTG-based regimen can be prescribed for most people with HIV who are of childbearing potential. Before initiating a DTG-based regimen, clinicians should discuss the risks and benefits of using DTG with persons of childbearing potential, to allow them to make an informed decision. -
14-258 Phrma HIV/AIDS2014 0819.Indd
2014 MEDICINES IN DEVELOPMENT REPORT HIV/AIDS PRESENTED BY AMERICA’S BIOPHARMACEUTICAL RESEARCH COMPANIES Biopharmaceutical Company Researchers Are Developing More Than 40 Medicines and Vaccines For HIV Infection Treatment and Prevention Medicines and Vaccines in Globally, approximately 35 million people effective therapies, and preventative Development for HIV Infection are infected with human immunodefi - vaccines. These medicines and vaccines ciency virus (HIV), the virus that causes are either in clinical trials or awaiting Application acquired immune defi ciency syndrome review by the U.S. Food and Drug Submitted (AIDS). However, new infections have Administration (FDA). Phase III dropped by 38 percent since 2001, Phase II The 44 medicines and vaccines in the according to UNAIDS, the Joint United Phase I development pipeline include: Nations Programme on HIV/AIDS. • A fi rst-in-class medicine intended to In the United States, more than 25 prevent HIV from breaking through 1.1 million people are living with HIV the cell membrane. and 15.8 percent of those are unaware they are infected, according to the • A cell therapy that modifi es a U.S. Centers for Disease Control and patient’s own cells in an attempt to Prevention (CDC). Although the U.S. make them resistant to HIV. HIV/AIDS-related death rate has fallen 16 by more than 80 percent since the introduction of antiretroviral therapies in Contents 1995, new HIV infections have stabilized HIV Medicines and Vaccines in at approximately 50,000 each year, Development ......................................2 according to the CDC. Incremental Innovation in HIV/AIDS Treatment .......................... 4 Since AIDS was fi rst reported in 1981, Access to HIV/AIDS Medicines in nearly 40 medicines have been approved Exchange Plans ...................................5 to treat HIV infection in the United Facts About HIV/AIDS ........................7 States. -
Management of Hiv Infection
MANAGEMENT OF HIV INFECTION Federal Bureau of Prisons Clinical Guidance September 2018 Clinical guidance is made available to the public for informational purposes only. The Federal Bureau of Prisons (BOP) does not warrant this guidance for any other purpose, and assumes no responsibility for any injury or damage resulting from the reliance thereof. Proper medical practice necessitates that all cases are evaluated on an individual basis and that treatment decisions are patient-specific. Referenced Program Statement versions within this document are for informational purposes only. Please refer to the most current version of the referenced Program Statement. Consult the BOP Health Management Resources Web page to determine the date of the most recent update to this document: http://www.bop.gov/resources/health_care_mngmt.jsp Federal Bureau of Prisons Management of HIV Infection Clinical Guidance September 2018 WHAT’S NEW IN THIS DOCUMENT? This document updates the December 2017 version of the BOP Clinical Guidance on the Management of HIV Infection. Treatment information throughout this document was updated to be in line with the Guidelines for the Use of Antiretroviral Agents in HIV-1-Infected Adults and Adolescents issued by the Department of Health and Human Services (DHHS) in 2018. NOTEWORTHY CHANGES INCLUDE REVISIONS IN THE FOLLOWING AREAS: • INDICATIONS FOR HIV TESTING: An opt out strategy of voluntary testing for HIV infection is recommended for all inmates, regardless of sentencing status, including new intakes and those already established in the population who have not declined testing. • MENINGOCOCCAL VACCINE: Adults with HIV infection who have not been previously vaccinated should receive a 2-dose primary series of MenACWY (MCV4), available as Menactra® or Menveo®, at least 2 months apart, and then revaccinated every 5 years. -
Fourth Quarter Product Sales of $2.13 Billion, up 11% Year Over Year
Gilead Sciences Announces Fourth Quarter and Full Year 2011 Financial Results February 2, 2012 4:06 PM ET - Fourth Quarter Product Sales of $2.13 Billion, up 11% Year over Year - - Full Year 2011 Product Sales of $8.10 Billion, up 10% over 2010 - - Full Year 2011 Non-GAAP EPS of $3.86, up 5% over 2010 - - Full Year 2011 Operating Cash Flows of $3.64 Billion - FOSTER CITY, Calif.--(BUSINESS WIRE)--Feb. 2, 2012-- Gilead Sciences, Inc. (Nasdaq:GILD) announced today its results of operations for the fourth quarter and full year 2011. Total revenues for the fourth quarter of 2011 increased 10 percent to $2.20 billion, from $2.00 billion for the fourth quarter of 2010. Net income for the fourth quarter of 2011 was $665.1 million, or $0.87 per diluted share, compared to $629.4 million, or $0.76 per diluted share for the fourth quarter of 2010. Non-GAAP net income for the fourth quarter of 2011, which excludes after-tax acquisition-related, restructuring and stock-based compensation expenses, was $743.1 million, or $0.97 per diluted share, compared to $779.3 million, or $0.95 per diluted share for the fourth quarter of 2010. Full year 2011 total revenues were $8.39 billion, up 5 percent compared to $7.95 billion for 2010. Net income for 2011 was $2.80 billion, or $3.55 per diluted share, compared to $2.90 billion, or $3.32 per diluted share for 2010. Non-GAAP net income for 2011, which excludes after-tax acquisition-related, restructuring and stock-based compensation expenses, was $3.04 billion, or $3.86 per diluted share, compared to $3.21 billion, or $3.69 per diluted share for 2010. -
BIKTARVY (Bictegravir, Emtricitabine, and Tenofovir
HIGHLIGHTS OF PRESCRIBING INFORMATION or below 15 mL per minute who have no antiretroviral treatment These highlights do not include all the information needed to use history. (2.3) BIKTARVY safely and effectively. See full prescribing information • Hepatic impairment: BIKTARVY is not recommended in patients for BIKTARVY. with severe hepatic impairment. (2.4) BIKTARVY® (bictegravir, emtricitabine, and tenofovir alafenamide) ----------------------DOSAGE FORMS AND STRENGTHS--------------------- tablets, for oral use Tablets: 50 mg of bictegravir (equivalent to 52.5 mg of bictegravir Initial U.S. Approval: 2018 sodium), 200 mg of emtricitabine, and 25 mg of tenofovir alafenamide (equivalent to 28 mg of tenofovir alafenamide fumarate). (3) WARNING: POST TREATMENT ACUTE EXACERBATION OF HEPATITIS B -------------------------------CONTRAINDICATIONS------------------------------- See full prescribing information for complete boxed warning. BIKTARVY is contraindicated to be co-administered with: • dofetilide. (4) Severe acute exacerbations of hepatitis B have been • rifampin. (4) reported in patients who are coinfected with HIV-1 and HBV and have discontinued products containing -----------------------WARNINGS AND PRECAUTIONS------------------------ emtricitabine (FTC) and/or tenofovir disoproxil fumarate • Immune reconstitution syndrome: May necessitate further evaluation (TDF), and may occur with discontinuation of BIKTARVY. and treatment. (5.3) Closely monitor hepatic function in these patients. If • New onset or worsening renal impairment: