Human Immunodeficiency Virus
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Failure of Initial Antiretroviral Treatment Regimens
An update of Current Research January, 1999 The Forum for Collaborative HIV Research, (FCHR) situated within the Center for Health Policy Research (CHPR) at The George Washington University School of Public Health & Health Services, is an independent public-private partnership composed of representatives from multiple interests in the HIV clinical research arena. The FCHR primarily facilitates ongoing discussion and collaboration between appropriate stakeholders on the development and implementation of new clinical studies in HIV and on the transfer of the results of research into clinical practice. The main purpose of the FCHR is to enhance collaboration between interested groups in order to address the critical unanswered questions regarding the optimal medical management of HIV disease. By encouraging coordination among public and private HIV/AIDS clinical research efforts, the FCHR hopes to integrate these efforts into HIV/AIDS medical care settings. Therefore, studies performed by these various research entities, separately or in cooperation, can begin faster; duplication of efforts can be reduced; patient enrollment and retention can be further facilitated; and costs of getting answers to the critical questions can be shared. At present,the FCHR is staffed by three persons and consists of over one hundred members, representing all facets of the field. These include pharmaceutical companies; public and private third-party payors; health care delivery system groups; government agencies; clinical research centers; and patient advocacy groups. The Director of the FCHR is David Barr. For further information about the Forum for Collaborative HIV Research and its projects, please call William Gist at 202-530-2334 or visit our website at: www.gwumc.edu/chpr and click on HIV Research. -
Download Article PDF/Slides
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. -
Review CCR5 Antagonists: Host-Targeted Antivirals for the Treatment of HIV Infection
Antiviral Chemistry & Chemotherapy 16:339–354 Review CCR5 antagonists: host-targeted antivirals for the treatment of HIV infection Mike Westby* and Elna van der Ryst Pfizer Global R&D, Kent, UK *Corresponding author: Tel: +44 1304 649876; Fax: +44 1304 651819; E-mail: [email protected] The human chemokine receptors, CCR5 and suggest that these compounds have a long plasma CXCR4, are potential host targets for exogenous, half-life and/or prolonged CCR5 occupancy, which small-molecule antagonists for the inhibition of may explain the delay in viral rebound observed HIV-1 infection. HIV-1 strains can be categorised by following compound withdrawal in short-term co-receptor tropism – their ability to utilise CCR5 monotherapy studies. A switch from CCR5 to (CCR5-tropic), CXCR4 (CXCR4-tropic) or both (dual- CXCR4 tropism occurs spontaneously in approxi- tropic) as a co-receptor for entry into susceptible mately 50% of HIV-infected patients and has been cells. CCR5 may be the more suitable co-receptor associated with, but is not required for, disease target for small-molecule antagonists because a progression. The possibility of a co-receptor natural deletion in the CCR5 gene preventing its tropism switch occurring under selection pressure expression on the cell surface is not associated by CCR5 antagonists is discussed. The completion with any obvious phenotype, but can confer of ongoing Phase IIb/III studies of maraviroc, resistance to infection by CCR5-tropic strains – the aplaviroc and vicriviroc will provide further insight most frequently sexually-transmitted strains. into co-receptor tropism, HIV pathogenesis and The current leading CCR5 antagonists in clinical the suitability of CCR5 antagonists as a potent development include maraviroc (UK-427,857, new class of antivirals for the treatment of HIV Pfizer), aplaviroc (873140, GlaxoSmithKline) and infection. -
Ep 2531027 B1
(19) TZZ ¥_Z _T (11) EP 2 531 027 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) Int Cl.: of the grant of the patent: A61K 31/4985 (2006.01) A61K 31/52 (2006.01) 06.05.2015 Bulletin 2015/19 A61K 31/536 (2006.01) A61K 31/513 (2006.01) A61K 38/55 (2006.01) A61P 31/18 (2006.01) (21) Application number: 11737484.3 (86) International application number: (22) Date of filing: 24.01.2011 PCT/US2011/022219 (87) International publication number: WO 2011/094150 (04.08.2011 Gazette 2011/31) (54) Therapeutic combination comprising dolutegravir, abacavir and lamivudine Therapeutische Zusammensetzung enthaltend Dolutegravir, Abacavir und Lamivudine Combinaison thérapeutique comprenant du dolutégravir, de l’abacavir et de la lamivudine (84) Designated Contracting States: (74) Representative: Gladwin, Amanda Rachel AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GlaxoSmithKline GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO Global Patents (CN925.1) PL PT RO RS SE SI SK SM TR 980 Great West Road Designated Extension States: Brentford, Middlesex TW8 9GS (GB) BA ME (56) References cited: (30) Priority: 27.01.2010 US 298589 P WO-A1-2010/011812 WO-A2-2009/148600 US-A1- 2006 084 627 US-A1- 2006 084 627 (43) Date of publication of application: US-A1- 2008 076 738 US-A1- 2009 318 421 12.12.2012 Bulletin 2012/50 US-A1- 2009 318 421 US-B1- 6 544 961 (73) Proprietor: VIIV Healthcare Company • SONG1 et al: "The Effect of Ritonavir-Boosted Research Triangle Park, NC 27709 (US) ProteaseInhibitors on the HIV Integrase Inhibitor, S/GSK1349572,in Healthy Subjects", INTERNET , (72) Inventor: UNDERWOOD, Mark, Richard 15 September 2009 (2009-09-15), XP002697436, Research Triangle Park Retrieved from the Internet: URL:http: North Carolina 27709 (US) //www.natap.org/2009/ICCAC/ICCAC_ 52.htm [retrieved on 2013-05-21] Note: Within nine months of the publication of the mention of the grant of the European patent in the European Patent Bulletin, any person may give notice to the European Patent Office of opposition to that patent, in accordance with the Implementing Regulations. -
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. -
Aplaviroc (APL, 873140)
Hepatotoxicity observed in clinical trials of aplaviroc (APL, 873140) WG Nichols1, HM Steel1, TM Bonny1, SS Min1, L Curtis1, K Kabeya2, N Clumeck2 1 GlaxoSmithKline, Research Triangle Park, USA; 2 CHU-Saint-Pierre, Brussels, Belgium. Aplaviroc (APL, 873140, Ono 4128) O CH3 O HO • Specific CCR5 antagonist O N OH N NH • Potent HIV entry inhibitor O – mean 1.66 log10 decline at nadir in HIV-RNA after 10d monotherapy1 • Safety profile supported further study in humans 1 Lalezari J et al. AIDS 2005;19:1443–1448. Aplaviroc Phase 2b Program CCR100136 CCR102881 • 195 treatment-naïve • 147 treatment-naïve subjects randomized to subjects randomized to – APL 200mg BID / LPV/r – APL 600mg BID / Combivir – APL 400mg BID / LPV/r – APL 800mg BID / Combivir – APL 800mg QD / LPV/r – Combivir / efavirenz – LPV/r / Combivir – 2:2:1 randomisation – 2:2:2:1 randomization Sentinel case: Severe hepatitis • 39 year old HIV+ male – CD4 283 cells/mm3 – HBV/HCV negative – Normal AST/ALT/bilirubin • APL 800mg BID + COM • Day 59: developed severe hepatic cytolysis • Liver biopsy: – Chronic inflammatory infiltrate, mod intensity Liver biopsy (portal area) – Consistent with drug-induced hepatotoxicity CCR102881 Individual Patient LFT Plots ALP ALT AST BILT CK 70 60 50 40 30 APL RX 20 LFT Values (x ULN) 10 0 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 Study Day Review of Liver Enzyme Elevations in APL Phase IIb trials • 336 subjects received treatment – 282 subjects on APL – median duration of therapy: 13 wks • Central Lab database query to identify – any Grade -
( 12 ) United States Patent
US010426780B2 (12 ) United States Patent (10 ) Patent No. : US 10 ,426 , 780 B2 Underwood (45 ) Date of Patent : Oct . 1 , 2019 ( 54 ) ANTIVIRAL THERAPY 5 ,089 , 500 A 2 / 1992 Daluge 5 ,519 ,021 A 5 / 1996 Young et al. 5 ,641 , 889 A 6 / 1997 Daluge et al . (71 ) Applicant : VIIV HEALTHCARE COMPANY , 5 ,663 , 169 A 9 /1997 Young et al. Wilmington , DE (US ) 5 ,663 , 320 A 9 / 1997 Mansour et al. 5 ,693 ,787 A 12 / 1997 Mansour et al. (72 ) Inventor : Mark Richard Underwood , Research 5 ,696 ,254 A 12 / 1997 Mansour et al. Triangle Park , NC (US ) 5 , 808 , 147 A 9 / 1998 Daluge et al. 5 ,811 , 423 A 9 / 1998 Young et al . 5 , 840 , 990 A 11/ 1998 Daluge et al . ( 73 ) Assignee : ViiV Healthcare Company , 5 , 849 , 911 A 12 / 1998 Fassler et al. Wilmington , DE (US ) 5 , 905 , 082 A 5 / 1999 Roberts et al. 5 , 914 , 332 A 6 / 1999 Sham et al . ( * ) Notice : Subject to any disclaimer , the term of this 5 ,917 ,041 A 6 / 1999 Daluge et al. patent is extended or adjusted under 35 5 ,917 , 042 A 6 / 1999 Daluge et al . 5 ,919 ,941 A 7 / 1999 Daluge et al. U . S . C . 154 (b ) by 0 days. 5 , 922 ,695 A 7 / 1999 Arimilli et al. 5 , 935 , 94 A 8 / 1999 Munger et al . (21 ) Appl. No. : 15 / 366 , 442 5 ,977 ,089 A 11/ 1999 Arimilli et al . 6 ,043 ,230 A 3 / 2000 Arimilli et al . ( 22 ) Filed : Dec . -
Enfermedades Infecciosas Y Microbiología Clínica Enfermedades Infecciosas Y
ISSN: 0213-005X Factor de impacto 2016: 1.714 Enfermedades Infecciosas y Microbiología Clínica Enfermedades Infecciosas y Microbiología Clínica Volumen 37, Especial Congreso 3, Diciembre 2019 Publicación mensual PUBLICACIÓN OFICIAL DE LA SOCIEDAD ESPAÑOLA DE ENFERMEDADES INFECCIOSAS Y MICROBIOLOGÍA CLÍNICA XI Congreso Nacional GeSIDA Diciembre 2019. Volumen 37. Especial Congreso 3. Páginas 1-146 y XIII Reunión Docente de la Red de Investigación de Sida (RIS) Toledo, 10-13 de diciembre de 2019 Incluida en: Index Medicus/MEDLINE Excerpta Medica/EMBASE Current Contents/Clinical Medicine ISI Alerting Services Science Citation Index-Expanded Journal Citation Reports Scopus/MEDES www.elsevier.es/eimc 00 PORTADA_GESIDA 2019.indd 1 26/11/19 14:07 PUBLICACIÓN OFICIAL DE LA SOCIEDAD ESPAÑOLA DE ENFERMEDADES INFECCIOSAS Y MICROBIOLOGÍA CLÍNICA Fundadores Editor Editores Asociados Agustí Pumarola Busquets † Benito Almirante Gragera (Barcelona) Juan Ignacio Alós Cortés (Madrid) Juan García San Miguel † José Ramón Arribas López (Madrid) Emilia Cercenado Mansilla (Madrid) Consejo Editorial Echevarria Mayo, José Manuel (Madrid) Navas Elorza, Enrique (Madrid) Aguado García, José Ma (Madrid) Ena Muñoz, Javier (Alicante) Ortiz de Lejarazu Leona, Raúl (Valladolid) Aguirrebengoa Iranguren, Koldo (Bilbao) Ezpeleta Baquedano, Ma Carmen (Bilbao) Oteo Revuelta, José Antonio (Logroño) Alarcón Cavero, Teresa (Madrid) Falguera Sacrest, Miguel (Lleida) Pachón Díaz, Jerónimo (Sevilla) Alarcón González, Arístides de (Sevilla) Fariñas Álvarez, Carmen (Santander) Pascual -
Merck & Co., Inc
As filed with the Securities and Exchange Commission on February 25, 2021 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 _________________________________ FORM 10-K (MARK ONE) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Fiscal Year Ended December 31, 2020 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 1-6571 _________________________________ Merck & Co., Inc. 2000 Galloping Hill Road Kenilworth New Jersey 07033 (908) 740-4000 New Jersey 22-1918501 (State or other jurisdiction of incorporation) (I.R.S Employer Identification No.) Securities Registered pursuant to Section 12(b) of the Act: Title of Each Class Trading Symbol(s) Name of Each Exchange on which Registered Common Stock ($0.50 par value) MRK New York Stock Exchange 1.125% Notes due 2021 MRK/21 New York Stock Exchange 0.500% Notes due 2024 MRK 24 New York Stock Exchange 1.875% Notes due 2026 MRK/26 New York Stock Exchange 2.500% Notes due 2034 MRK/34 New York Stock Exchange 1.375% Notes due 2036 MRK 36A New York Stock Exchange Number of shares of Common Stock ($0.50 par value) outstanding as of January 31, 2021: 2,530,315,668. Aggregate market value of Common Stock ($0.50 par value) held by non-affiliates on June 30, 2020 based on closing price on June 30, 2020: $195,461,000,000. Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. -
(51) International Patent Classification: Declarations Under Rule 4.17
) ( (51) International Patent Classification: Declarations under Rule 4.17: A61K9/00 (2006.01) A61K 31/675 (2006.01) — as to applicant's entitlement to apply for and be granted a A61K9/14 (2006.01) A61K 31/683 (2006.01) patent (Rule 4.17(H)) A61K9/16 (2006.01) — as to the applicant's entitlement to claim the priority of the (21) International Application Number: earlier application (Rule 4.17(iii)) PCT/US2020/046758 Published: (22) International Filing Date: — with international search report (Art. 21(3)) 18 August 2020 (18.08.2020) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/888,959 19 August 2019 (19.08.2019) US (71) Applicant: GILEAD SCIENCES, INC. [US/US]; 333 Lakeside Drive, Foster City, California 94404 (US). (72) Inventors: BANE, Jessica M.; c/o Gilead Sciences, Inc., 333 Lakeside Drive, Foster City, California 94404 (US). NEJATI, Elham; c/o Gilead Sciences, Inc., 333 Lakeside Drive, Foster City, California 94404 (US). STEFANIDIS, Dimitrios; c/o Gilead Sciences, Inc., 333 Lakeside Drive, Foster City, California 94404 (US). (74) Agent: BAJPAI, Reena et al.; Gilead Sciences, Inc., 333 Lakeside Drive, Foster City, California 94404 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available) : AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, IT, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, WS, ZA, ZM, ZW. -
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 -
Lamivudine in Combination with Zidovudine, Stavudine, Or Didanosine in Patients with HIV-1 Infection
Lamivudine in combination with zidovudine, stavudine, or didanosine in patients with HIV-1 infection. A randomized, double-blind, placebo-controlled trial Daniel R. Kuritzkes*, Ian Marschner†, Victoria A. Johnson‡, Roland Bassett†, Joseph J. Eron§, Margaret A. FischlII, Robert L. Murphy¶, Kenneth Fife**, Janine Maenza††, Mary E. Rosandich*, Dawn Bell‡‡, Ken Wood§§, Jean-Pierre Sommadossi‡, Carla PettinelliII II and the National Institute of Allergy and Infectious Disease AIDS Clinical Trials Group Protocol 306 Investigators Objective: To study the antiviral activity of lamivudine (3TC) plus zidovudine (ZDV), didanosine (ddI), or stavudine (d4T). Design: Randomized, placebo-controlled, partially double-blinded multicenter study. Setting: Adult AIDS Clinical Trials Units. Patients: Treatment-naive HIV-infected adults with 200–600 × 106 CD4 T lymphocytes/l. Interventions: Patients were openly randomized to a d4T or a ddI limb, then randomized in a blinded manner to receive: d4T (80 mg/day), d4T plus 3TC (300 mg/day), or ZDV (600 mg/day) plus 3TC, with matching placebos; or ddI (400 mg/day), ddI plus 3TC (300 mg/day), or ZDV (600 mg/day) plus 3TC, with matching placebos. After 24 weeks 3TC was added for patients assigned to the monotherapy arms. Main outcome measure: The reduction in plasma HIV-1 RNA level at weeks 24 and 48. From the *University of Colorado Health Sciences Center and Veterans Affairs Medical Center, Denver, Colorado, the †Center for Biostatistics in AIDS Research, Harvard School of Public Health, Boston, Massachusetts, the