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WO 2015/179249 Al 26 November 2015 (26.11.2015) P O P C T
(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2015/179249 Al 26 November 2015 (26.11.2015) P O P C T (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every C12N 15/11 (2006.01) A61K 38/08 (2006.01) kind of national protection available): AE, AG, AL, AM, C12N 15/00 (2006.01) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, (21) Number: International Application DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, PCT/US2015/031213 HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, (22) International Filing Date: KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, 15 May 2015 (15.05.2015) 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, (25) Filing Language: English SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, (26) Publication Language: English TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (30) Priority Data: (84) Designated States (unless otherwise indicated, for every 62/000,43 1 19 May 2014 (19.05.2014) US kind of regional protection available): ARIPO (BW, GH, 62/129,746 6 March 2015 (06.03.2015) US GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (72) Inventors; and TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, (71) Applicants : GELLER, Bruce, L. -
Oxazolidinones for TB
Oxazolidinones for TB: Current Status and Future Prospects 12th International Workshop on Clinical Pharmacology of Tuberculosis Drugs London, UK 10 September 2019 Lawrence Geiter, PhD Disclosures • Currently contract consultant with LegoChem Biosciences, Inc., Daejeon, Korea (LCB01-0371/delpazolid) • Previously employed with Otsuka Pharmaceutical Development and Commercialization, Inc. (delamanid, OPC-167832, LAM assay) What are Oxazolidinones • A family of antimicrobials mostly targeting an early step in protein synthesis • Cycloserine technically oxazolidinone but 2-oxazolidinone different MOA and chemical properties • New generation oxazolidinones bind to both 50S subunit and 30S subunit • Linezolid (Zyvox) and Tedizolid (Sivestro) approved for drug resistant skin infections and community acquired pneumonia Cycloserine • Activity against TB demonstrated in non- clinical and clinical studies • Mitochondrial toxicity >21 days limits use in TB treatment Linezolid Developing Oxazolidinones for TB Compound Generic Brand Sponsor Development Status TB Code- Activity/Trials PNU-100766 Linezolid Zyvox Pfizer Multiple regimen Yes/Yes TR-201 Tedizolid Sivextro Merck Pre-clinical efficacy Yes/No PNU-100480 Sutezolid Pfizer Multiple regimen studies Sequella Yes/Yes (PanACEA) TB Alliance LCB01-0371 Delpazolid LegoChem Bio EBA trial recruitment completed Yes/Yes TBI-223 - Global Alliance SAD trial launched Yes/Yes AZD5847 Posizolid AstraZenica Completed EBA Yes/No RX-1741 Radezolid Melinta IND for vaginal infections ?/No RBX-7644 Ranbezolid Rabbaxy None found ?/No MRX-4/MRX-1 Contezolid MicuRx Skin infections Yes/No U-100592 Eperezolid ? No clinical trials ?/No PK of Oxazolidinones in Development for TB Steady State PK Parameters Parameter Linezolid 600 Delpazolid 800 mg QD2 mg QD3 Cmax (mg/L) 17.8 8.9 Cmin (mg/L) 2.43 0.1 Tmax (h) 0.87 0.5 T1/2 (h) 3.54 1.7 AUC0-24 (µg*h/mL) 84.5 20.1 1 MIC90 (µg/mL) 0.25 0.5 References 1. -
General Items
Essential Medicines List (EML) 2019 Application for the inclusion of imipenem/cilastatin, meropenem and amoxicillin/clavulanic acid in the WHO Model List of Essential Medicines, as reserve second-line drugs for the treatment of multidrug-resistant tuberculosis (complementary lists of anti-tuberculosis drugs for use in adults and children) General items 1. Summary statement of the proposal for inclusion, change or deletion This application concerns the updating of the forthcoming WHO Model List of Essential Medicines (EML) and WHO Model List of Essential Medicines for Children (EMLc) to include the following medicines: 1) Imipenem/cilastatin (Imp-Cln) to the main list but NOT the children’s list (it is already mentioned on both lists as an option in section 6.2.1 Beta Lactam medicines) 2) Meropenem (Mpm) to both the main and the children’s lists (it is already on the list as treatment for meningitis in section 6.2.1 Beta Lactam medicines) 3) Clavulanic acid to both the main and the children’s lists (it is already listed as amoxicillin/clavulanic acid (Amx-Clv), the only commercially available preparation of clavulanic acid, in section 6.2.1 Beta Lactam medicines) This application makes reference to amendments recommended in particular to section 6.2.4 Antituberculosis medicines in the latest editions of both the main EML (20th list) and the EMLc (6th list) released in 2017 (1),(2). On the basis of the most recent Guideline Development Group advising WHO on the revision of its guidelines for the treatment of multidrug- or rifampicin-resistant (MDR/RR-TB)(3), the applicant considers that the three agents concerned be viewed as essential medicines for these forms of TB in countries. -
Alphataxin, an Orally Available Small Molecule, Decreases LDL Levels in Mice As a Surrogate for the LDL-Lowering Activity of Alpha-1 Antitrypsin in Humans
ORIGINAL RESEARCH published: 09 June 2021 doi: 10.3389/fphar.2021.695971 Alphataxin, an Orally Available Small Molecule, Decreases LDL Levels in Mice as a Surrogate for the LDL-Lowering Activity of Alpha-1 Antitrypsin in Humans Cynthia L. Bristow 1,2* and Ronald Winston 1,2 1Alpha-1 Biologics, Long Island High Technology Incubator, Stony Brook University, Stony Brook, NY, United States, 2Institute for Human Genetics and Biochemistry, Vesenaz, Switzerland Edited by: Guanglong He, University of Wyoming, United States The abundant blood protein α1-proteinase inhibitor (α1PI, Alpha-1, α1-antitrypsin, Reviewed by: SerpinA1) is known to bind to the active site of granule-associated human leukocyte Hua Zhu, α The Ohio State University, elastase (HLE-G). Less well known is that binding of 1PI to cell surface HLE (HLE-CS) United States induces lymphocyte locomotion mediated by members of the low density lipoprotein Adam Chicco, receptor family (LDL-RFMs) thereby facilitating low density lipoprotein (LDL) clearance. LDL Colorado State University, United States and α1PI were previously shown to be in negative feedback regulation during transport and *Correspondence: clearance of lipoproteins. Further examination herein of the influence of α1PI in lipoprotein Cynthia L. Bristow regulation using data from a small randomized, double-blind clinical trial shows that cynthia.bristow@ α alpha1biologics.com treatment of HIV-1-infected individuals with 1PI plasma products lowered [email protected] apolipoprotein and lipoprotein levels including LDL. Although promising, plasma- orcid.org/0000-0003-1189-5121 purified α1PI is limited in quantity and not a feasible treatment for the vast number of Specialty section: people who need treatment for lowering LDL levels. -
B-Lactams: Chemical Structure, Mode of Action and Mechanisms of Resistance
b-Lactams: chemical structure, mode of action and mechanisms of resistance Ru´ben Fernandes, Paula Amador and Cristina Prudeˆncio This synopsis summarizes the key chemical and bacteriological characteristics of b-lactams, penicillins, cephalosporins, carbanpenems, monobactams and others. Particular notice is given to first-generation to fifth-generation cephalosporins. This review also summarizes the main resistance mechanism to antibiotics, focusing particular attention to those conferring resistance to broad-spectrum cephalosporins by means of production of emerging cephalosporinases (extended-spectrum b-lactamases and AmpC b-lactamases), target alteration (penicillin-binding proteins from methicillin-resistant Staphylococcus aureus) and membrane transporters that pump b-lactams out of the bacterial cell. Keywords: b-lactams, chemical structure, mechanisms of resistance, mode of action Historical perspective Alexander Fleming first noticed the antibacterial nature of penicillin in 1928. When working with Antimicrobials must be understood as any kind of agent another bacteriological problem, Fleming observed with inhibitory or killing properties to a microorganism. a contaminated culture of Staphylococcus aureus with Antibiotic is a more restrictive term, which implies the the mold Penicillium notatum. Fleming remarkably saw natural source of the antimicrobial agent. Similarly, under- the potential of this unfortunate event. He dis- lying the term chemotherapeutic is the artificial origin of continued the work that he was dealing with and was an antimicrobial agent by chemical synthesis [1]. Initially, able to describe the compound around the mold antibiotics were considered as small molecular weight and isolates it. He named it penicillin and published organic molecules or metabolites used in response of his findings along with some applications of penicillin some microorganisms against others that inhabit the same [4]. -
Penicillin Allergy Guidance Document
Penicillin Allergy Guidance Document Key Points Background Careful evaluation of antibiotic allergy and prior tolerance history is essential to providing optimal treatment The true incidence of penicillin hypersensitivity amongst patients in the United States is less than 1% Alterations in antibiotic prescribing due to reported penicillin allergy has been shown to result in higher costs, increased risk of antibiotic resistance, and worse patient outcomes Cross-reactivity between truly penicillin allergic patients and later generation cephalosporins and/or carbapenems is rare Evaluation of Penicillin Allergy Obtain a detailed history of allergic reaction Classify the type and severity of the reaction paying particular attention to any IgE-mediated reactions (e.g., anaphylaxis, hives, angioedema, etc.) (Table 1) Evaluate prior tolerance of beta-lactam antibiotics utilizing patient interview or the electronic medical record Recommendations for Challenging Penicillin Allergic Patients See Figure 1 Follow-Up Document tolerance or intolerance in the patient’s allergy history Consider referring to allergy clinic for skin testing Created July 2017 by Macey Wolfe, PharmD; John Schoen, PharmD, BCPS; Scott Bergman, PharmD, BCPS; Sara May, MD; and Trevor Van Schooneveld, MD, FACP Disclaimer: This resource is intended for non-commercial educational and quality improvement purposes. Outside entities may utilize for these purposes, but must acknowledge the source. The guidance is intended to assist practitioners in managing a clinical situation but is not mandatory. The interprofessional group of authors have made considerable efforts to ensure the information upon which they are based is accurate and up to date. Any treatments have some inherent risk. Recommendations are meant to improve quality of patient care yet should not replace clinical judgment. -
Computational Antibiotics Book
Andrew V DeLong, Jared C Harris, Brittany S Larcart, Chandler B Massey, Chelsie D Northcutt, Somuayiro N Nwokike, Oscar A Otieno, Harsh M Patel, Mehulkumar P Patel, Pratik Pravin Patel, Eugene I Rowell, Brandon M Rush, Marc-Edwin G Saint-Louis, Amy M Vardeman, Felicia N Woods, Giso Abadi, Thomas J. Manning Computational Antibiotics Valdosta State University is located in South Georgia. Computational Antibiotics Index • Computational Details and Website Access (p. 8) • Acknowledgements (p. 9) • Dedications (p. 11) • Antibiotic Historical Introduction (p. 13) Introduction to Antibiotic groups • Penicillin’s (p. 21) • Carbapenems (p. 22) • Oxazolidines (p. 23) • Rifamycin (p. 24) • Lincosamides (p. 25) • Quinolones (p. 26) • Polypeptides antibiotics (p. 27) • Glycopeptide Antibiotics (p. 28) • Sulfonamides (p. 29) • Lipoglycopeptides (p. 30) • First Generation Cephalosporins (p. 31) • Cephalosporin Third Generation (p. 32) • Fourth-Generation Cephalosporins (p. 33) • Fifth Generation Cephalosporin’s (p. 34) • Tetracycline antibiotics (p. 35) Computational Antibiotics Antibiotics Covered (in alphabetical order) Amikacin (p. 36) Cefempidone (p. 98) Ceftizoxime (p. 159) Amoxicillin (p. 38) Cefepime (p. 100) Ceftobiprole (p. 161) Ampicillin (p. 40) Cefetamet (p. 102) Ceftoxide (p. 163) Arsphenamine (p. 42) Cefetrizole (p. 104) Ceftriaxone (p. 165) Azithromycin (p.44) Cefivitril (p. 106) Cefuracetime (p. 167) Aziocillin (p. 46) Cefixime (p. 108) Cefuroxime (p. 169) Aztreonam (p.48) Cefmatilen ( p. 110) Cefuzonam (p. 171) Bacampicillin (p. 50) Cefmetazole (p. 112) Cefalexin (p. 173) Bacitracin (p. 52) Cefodizime (p. 114) Chloramphenicol (p.175) Balofloxacin (p. 54) Cefonicid (p. 116) Cilastatin (p. 177) Carbenicillin (p. 56) Cefoperazone (p. 118) Ciprofloxacin (p. 179) Cefacetrile (p. 58) Cefoselis (p. 120) Clarithromycin (p. 181) Cefaclor (p. -
Antibacterial Drugs
Antibacterial drugs Iwona Smolarek, MD, PhD Department of Clinical Pharmacology The antibacterial drugs destroy or slow down the growth of bacteria They are widely used in medicine and dentistry. They are administered generally and locally, in prophylaxis and treatment. ANTIBIOTICS antimicrobial agents produced by microorganisms synthetic drugs designed based upon the structure of molecules produced in nature by microorganisms CHEMOTHERAPEUTIC AGENTS antimicrobial agents synthesized in the laboratory Colloquially – all antibacterial agents are named antibiotics Antibiotics classification and mechanism of action Antibiotics classification bacteriostatic – slow growth or reproduction of bacteria (macrolides, lincosamides, tetracyclines, sulfonamides and chloramphenicol) bactericidal - kill bacteria (β-lactams, vancomycin, daptomycin, fluoroquinolones, metronidazole, co-trimoxazole) The classification is in part arbitrary because most bacteriostatic drugs are bactericidal at high concentrations, under certain incubation conditions in vitro, and against some bacteria. Β - lactams inhibit bacterial growth by interfering with bacterial cell wall synthesis - bactericidal this group of antibiotic include some groups such as penicillins, cephalosporins, monobactams, carbapenems, and β – lactamase inhibitors Penicillins - classification The penicillin group include: prototype: penicillin G, penicillin V penicillinase – resistant: nafcillin, methilcillin, oxacillin, cloxacillin, dicloxacillin extendend – spectrum: ampicillin, amoxicillin, -
Management of Penicillin and Beta-Lactam Allergy
Management of Penicillin and Beta-Lactam Allergy (NB Provincial Health Authorities Anti-Infective Stewardship Committee, September 2017) Key Points • Beta-lactams are generally safe; allergic and adverse drug reactions are over diagnosed and over reported • Nonpruritic, nonurticarial rashes occur in up to 10% of patients receiving penicillins. These rashes are usually not allergic and are not a contraindication to the use of a different beta-lactam • The frequently cited risk of 8 to 10% cross-reactivity between penicillins and cephalosporins is an overestimate based on studies from the 1970’s that are now considered flawed • Expect new intolerances (i.e. any allergy or adverse reaction reported in a drug allergy field) to be reported after 0.5 to 4% of all antimicrobial courses depending on the gender and specific antimicrobial. Expect a higher incidence of new intolerances in patients with three or more prior medication intolerances1 • For type-1 immediate hypersensitivity reactions (IgE-mediated), cross-reactivity among penicillins (table 1) is expected due to similar core structure and/or major/minor antigenic determinants, use not recommended without desensitization • For type-1 immediate hypersensitivity reactions, cross-reactivity between penicillins (table 1) and cephalosporins is due to similarities in the side chains; risk of cross-reactivity will only be significant between penicillins and cephalosporins with similar side chains • Only type-1 immediate hypersensitivity to a penicillin manifesting as anaphylaxis, bronchospasm, -
EMA/CVMP/158366/2019 Committee for Medicinal Products for Veterinary Use
Ref. Ares(2019)6843167 - 05/11/2019 31 October 2019 EMA/CVMP/158366/2019 Committee for Medicinal Products for Veterinary Use Advice on implementing measures under Article 37(4) of Regulation (EU) 2019/6 on veterinary medicinal products – Criteria for the designation of antimicrobials to be reserved for treatment of certain infections in humans Official address Domenico Scarlattilaan 6 ● 1083 HS Amsterdam ● The Netherlands Address for visits and deliveries Refer to www.ema.europa.eu/how-to-find-us Send us a question Go to www.ema.europa.eu/contact Telephone +31 (0)88 781 6000 An agency of the European Union © European Medicines Agency, 2019. Reproduction is authorised provided the source is acknowledged. Introduction On 6 February 2019, the European Commission sent a request to the European Medicines Agency (EMA) for a report on the criteria for the designation of antimicrobials to be reserved for the treatment of certain infections in humans in order to preserve the efficacy of those antimicrobials. The Agency was requested to provide a report by 31 October 2019 containing recommendations to the Commission as to which criteria should be used to determine those antimicrobials to be reserved for treatment of certain infections in humans (this is also referred to as ‘criteria for designating antimicrobials for human use’, ‘restricting antimicrobials to human use’, or ‘reserved for human use only’). The Committee for Medicinal Products for Veterinary Use (CVMP) formed an expert group to prepare the scientific report. The group was composed of seven experts selected from the European network of experts, on the basis of recommendations from the national competent authorities, one expert nominated from European Food Safety Authority (EFSA), one expert nominated by European Centre for Disease Prevention and Control (ECDC), one expert with expertise on human infectious diseases, and two Agency staff members with expertise on development of antimicrobial resistance . -
Beta Lactam Antibiotics Penicillins Pharmaceutical
BETA LACTAM ANTIBIOTICS PENICILLINS PHARMACEUTICAL CHEMISTRY II PHA386 PENICILLINS Penicillin was discovered in 1928 by Scottish scientist Alexander Fleming, who noticed that one of his experimental cultures of staphylococcus was contaminated with mold (fortuitous accident), which caused the bacteria to lyse. Since mold belonged to the family Penicillium (Penicillium notatum), he named the antibacterial substance Penicillin. Penicillin core structure CHEMICAL STRUCTURE PENAM RING PENICILLIN G 6-APA • 6-APA is the chemical compound (+)-6-aminopenicillanic acid. • It is the core of penicillin. PENAM RING 5 1 • 7-oxo-1- thia-4-azabicylo [3,2,0] heptane 6 2 7 3 4 PENICILLANIC ACID • 2,2–dimethyl penam –3– carboxylic acid • 2,2-dimethyl-7-oxo-1- thia-4-azabicylo [3,2,0]heptane -3-carboxylic acid 6-AMINO PENICILLANIC ACID (6-APA) • 6-amino-2,2–dimethyl penam –3– carboxylic acid • 6-amino-2,2-dimethyl-7-oxo-1- thia-4-azabicylo [3,2,0] heptane-3-carboxylic acid PENISILLIN G (BENZYL PENICILLIN) O S CH3 CH2 C NH CH3 N O COO-K+ 6-(2-Phenylacetamino) penicillanic acid potassium salt PENICILLIN G PROCAINE O C 2 H 5 ‐ H N C H 2 C H 2 O C N H 2 C 2 H 5 PENICILLIN G BENZATHINE ‐ ‐ C H 2 C H 2 H N C H 2 C H 2 N H H H PENICILLIN V (PHENOXYMETHYL PENICILLIN) PHENETHICILLIN PROPACILLIN METHICILLIN SODIUM OCH3 S CH3 CONH CH3 N - + OCH3 O COO Na 6-[(2,6-dimethoxybenzoyl)amino] penicillanic acid sodium salt NAFCILLIN SODIUM 6-(2-ethoxy-1-naphtylcarbonylamino) penicillanic acid sodium salt OXACILLIN SODIUM 6-[(5-methyl-3-phenylizoxazole-4-yl)-carbonylamino] sodium -
2-Substituted Methyl Penam Derivatives 2-Substituierte Methyl-Penam-Derivate Dérivés 2-Substitués Du Méthyl Pénam
(19) TZZ ZZ _T (11) EP 2 046 802 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) Int Cl.: C07D 499/87 (2006.01) C07D 499/21 (2006.01) of the grant of the patent: C07D 499/28 (2006.01) C07D 499/32 (2006.01) 21.08.2013 Bulletin 2013/34 A61K 31/431 (2006.01) A61P 31/00 (2006.01) (21) Application number: 07804590.3 (86) International application number: PCT/IB2007/001941 (22) Date of filing: 11.07.2007 (87) International publication number: WO 2008/010048 (24.01.2008 Gazette 2008/04) (54) 2-SUBSTITUTED METHYL PENAM DERIVATIVES 2-SUBSTITUIERTE METHYL-PENAM-DERIVATE DÉRIVÉS 2-SUBSTITUÉS DU MÉTHYL PÉNAM (84) Designated Contracting States: • SRIRAM, Rajagopal AT BE BG CH CY CZ DE DK EE ES FI FR GB GR Chennai, Tamil Nadu 600 119 (IN) HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE • PAUL-SATYASEELA, Maneesh SI SK TR Chennai, Tamil Nadu 600 119 (IN) • SOLANKI, Shakti, Singh (30) Priority: 12.07.2006 IN CH12172006 Chennai, Tamil Nadu 600 119 (IN) • DEVARAJAN, Sathishkumar (43) Date of publication of application: Chennai, Tamil Nadu 600 119 (IN) 15.04.2009 Bulletin 2009/16 (74) Representative: Murphy, Colm Damien et al (73) Proprietor: Allecra Therapeutics GmbH Ipulse 79539 Lörrach (DE) Carrington House 126-130 Regent Street (72) Inventors: London W1B 5SE (GB) • UDAYAMPALAYAM, Palanisamy, Senthilkumar Chennai, Tamil Nadu 600 119 (IN) (56) References cited: • GNANAPRAKASAM, Andrew EP-A1- 0 097 446 EP-A1- 0 367 124 Chennai, Tamil Nadu 600 119 (IN) JP-A- 60 215 688 US-A1- 2005 070 705 • GANAPATHY, Panchapakesan US-A1- 2005