PRAC Recommendations on Signals Adopted at the 31 Aug-3 Sep 2020
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Repurposing Drug Scaffolds: a Tool for Developing Novel Therapeutics with Applications in Malaria and Lung Cancer
Repurposing Drug Scaffolds: A Tool for Developing Novel Therapeutics with Applications in Malaria and Lung Cancer A Thesis Submitted by: Hannah Elizabeth Cook In partial fulfilment of the requirements for the degree of: Doctor of Philosophy September 2018 Supervisors: Professor Matthew J. Fuchter & Professor Anthony G. M. Barrett Department of Chemistry Imperial College London 2 Declaration of Originality I, Hannah Cook, hereby confirm that the work presented within this thesis is entirely my own, conducted under the supervision of Professor Matthew J. Fuchter and Professor Anthony G. M. Barrett, at the Department of Chemistry, Imperial College London, unless otherwise stated. All work performed by others has been acknowledged within the text and referenced where appropriate. Hannah E. Cook September 2018 Copyright Declaration The copyright of this thesis rests with the author and is made available under a Creative Commons Attribution Non-Commercial No Derivatives licence. Researchers are free to copy, distribute or transmit the thesis on the condition that they attribute it, that they do not use it for commercial purposes and that they do not alter, transform or build upon it. For any reuse or redistribution, researchers must make clear to others the licence terms of this work. 3 Abstract The definition of repurposing in the context of drug discovery encompasses a variety of strategies designed to redirect current therapeutic knowledge towards new disease indications. This approach can be successful for the design of new drugs to treat diseases of the developing world such as Malaria, where there are limited resources to fund new drug discovery campaigns. Moreover, it can be used to decrease the drug development time for diseases in which there is high drug attrition rates coupled with high mortality rates, which is the case for some cancers. -
A TWO-YEAR RETROSPECTIVE ANALYSIS of ADVERSE DRUG REACTIONS with 5PSQ-031 FLUOROQUINOLONE and QUINOLONE ANTIBIOTICS 24Th Congress Of
A TWO-YEAR RETROSPECTIVE ANALYSIS OF ADVERSE DRUG REACTIONS WITH 5PSQ-031 FLUOROQUINOLONE AND QUINOLONE ANTIBIOTICS 24th Congress of V. Borsi1, M. Del Lungo2, L. Giovannetti1, M.G. Lai1, M. Parrilli1 1 Azienda USL Toscana Centro, Pharmacovigilance Centre, Florence, Italy 2 Dept. of Neurosciences, Psychology, Drug Research and Child Health (NEUROFARBA), 27-29 March 2019 Section of Pharmacology and Toxicology , University of Florence, Italy BACKGROUND PURPOSE On 9 February 2017, the Pharmacovigilance Risk Assessment Committee (PRAC) initiated a review1 of disabling To review the adverse drugs and potentially long-lasting side effects reported with systemic and inhaled quinolone and fluoroquinolone reactions (ADRs) of antibiotics at the request of the German medicines authority (BfArM) following reports of long-lasting side effects systemic and inhaled in the national safety database and the published literature. fluoroquinolone and quinolone antibiotics that MATERIAL AND METHODS involved peripheral and central nervous system, Retrospective analysis of ADRs reported in our APVD involving ciprofloxacin, flumequine, levofloxacin, tendons, muscles and joints lomefloxacin, moxifloxacin, norfloxacin, ofloxacin, pefloxacin, prulifloxacin, rufloxacin, cinoxacin, nalidixic acid, reported from our pipemidic given systemically (by mouth or injection). The period considered is September 2016 to September Pharmacovigilance 2018. Department (PVD). RESULTS 22 ADRs were reported in our PVD involving fluoroquinolone and quinolone antibiotics in the period considered and that affected peripheral or central nervous system, tendons, muscles and joints. The mean patient age was 67,3 years (range: 17-92 years). 63,7% of the ADRs reported were serious, of which 22,7% caused hospitalization and 4,5% caused persistent/severe disability. 81,8% of the ADRs were reported by a healthcare professional (physician, pharmacist or other) and 18,2% by patient or a non-healthcare professional. -
Antimicrobial Resistance Benchmark 2020 Antimicrobial Resistance Benchmark 2020
First independent framework for assessing pharmaceutical company action Antimicrobial Resistance Benchmark 2020 Antimicrobial Resistance Benchmark 2020 ACKNOWLEDGEMENTS The Access to Medicine Foundation would like to thank the following people and organisations for their contributions to this report.1 FUNDERS The Antimicrobial Resistance Benchmark research programme is made possible with financial support from UK AID and the Dutch Ministry of Health, Welfare and Sport. Expert Review Committee Research Team Reviewers Hans Hogerzeil - Chair Gabrielle Breugelmans Christine Årdal Gregory Frank Fatema Rafiqi Karen Gallant Nina Grundmann Adrián Alonso Ruiz Hans Hogerzeil Magdalena Kettis Ruth Baron Hitesh Hurkchand Joakim Larsson Dulce Calçada Joakim Larsson Marc Mendelson Moska Hellamand Marc Mendelson Margareth Ndomondo-Sigonda Kevin Outterson Katarina Nedog Sarah Paulin (Observer) Editorial Team Andrew Singer Anna Massey Deirdre Cogan ACCESS TO MEDICINE FOUNDATION Rachel Jones The Access to Medicine Foundation is an independent Emma Ross non-profit organisation based in the Netherlands. It aims to advance access to medicine in low- and middle-income Additional contributors countries by stimulating and guiding the pharmaceutical Thomas Collin-Lefebvre industry to play a greater role in improving access to Alex Kong medicine. Nestor Papanikolaou Address Contact Naritaweg 227-A For more information about this publication, please contact 1043 CB, Amsterdam Jayasree K. Iyer, Executive Director The Netherlands [email protected] +31 (0) 20 215 35 35 www.amrbenchmark.org 1 This acknowledgement is not intended to imply that the individuals and institutions referred to above endorse About the cover: Young woman from the Antimicrobial Resistance Benchmark methodology, Brazil, where 40%-60% of infections are analyses or results. -
Preclinical Evaluation of Protein Disulfide Isomerase Inhibitors for the Treatment of Glioblastoma by Andrea Shergalis
Preclinical Evaluation of Protein Disulfide Isomerase Inhibitors for the Treatment of Glioblastoma By Andrea Shergalis A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Medicinal Chemistry) in the University of Michigan 2020 Doctoral Committee: Professor Nouri Neamati, Chair Professor George A. Garcia Professor Peter J. H. Scott Professor Shaomeng Wang Andrea G. Shergalis [email protected] ORCID 0000-0002-1155-1583 © Andrea Shergalis 2020 All Rights Reserved ACKNOWLEDGEMENTS So many people have been involved in bringing this project to life and making this dissertation possible. First, I want to thank my advisor, Prof. Nouri Neamati, for his guidance, encouragement, and patience. Prof. Neamati instilled an enthusiasm in me for science and drug discovery, while allowing me the space to independently explore complex biochemical problems, and I am grateful for his kind and patient mentorship. I also thank my committee members, Profs. George Garcia, Peter Scott, and Shaomeng Wang, for their patience, guidance, and support throughout my graduate career. I am thankful to them for taking time to meet with me and have thoughtful conversations about medicinal chemistry and science in general. From the Neamati lab, I would like to thank so many. First and foremost, I have to thank Shuzo Tamara for being an incredible, kind, and patient teacher and mentor. Shuzo is one of the hardest workers I know. In addition to a strong work ethic, he taught me pretty much everything I know and laid the foundation for the article published as Chapter 3 of this dissertation. The work published in this dissertation really began with the initial identification of PDI as a target by Shili Xu, and I am grateful for his advice and guidance (from afar!). -
Guidelines on Urinary and Male Genital Tract Infections
European Association of Urology GUIDELINES ON URINARY AND MALE GENITAL TRACT INFECTIONS K.G. Naber, B. Bergman, M.C. Bishop, T.E. Bjerklund Johansen, H. Botto, B. Lobel, F. Jimenez Cruz, F.P. Selvaggi TABLE OF CONTENTS PAGE 1. INTRODUCTION 5 1.1 Classification 5 1.2 References 6 2. UNCOMPLICATED UTIS IN ADULTS 7 2.1 Summary 7 2.2 Background 8 2.3 Definition 8 2.4 Aetiological spectrum 9 2.5 Acute uncomplicated cystitis in pre-menopausal, non-pregnant women 9 2.5.1 Diagnosis 9 2.5.2 Treatment 10 2.5.3 Post-treatment follow-up 11 2.6 Acute uncomplicated pyelonephritis in pre-menopausal, non-pregnant women 11 2.6.1 Diagnosis 11 2.6.2 Treatment 12 2.6.3 Post-treatment follow-up 12 2.7 Recurrent (uncomplicated) UTIs in women 13 2.7.1 Background 13 2.7.2 Prophylactic antimicrobial regimens 13 2.7.3 Alternative prophylactic methods 14 2.8 UTIs in pregnancy 14 2.8.1 Epidemiology 14 2.8.2 Asymptomatic bacteriuria 15 2.8.3 Acute cystitis during pregnancy 15 2.8.4 Acute pyelonephritis during pregnancy 15 2.9 UTIs in post-menopausal women 15 2.10 Acute uncomplicated UTIs in young men 16 2.10.1 Pathogenesis and risk factors 16 2.10.2 Diagnosis 16 2.10.3 Treatment 16 2.11 References 16 3. UTIs IN CHILDREN 20 3.1 Summary 20 3.2 Background 20 3.3 Aetiology 20 3.4 Pathogenesis 20 3.5 Signs and symptoms 21 3.5.1 New-borns 21 3.5.2 Children < 6 months of age 21 3.5.3 Pre-school children (2-6 years of age) 21 3.5.4 School-children and adolescents 21 3.5.5 Severity of a UTI 21 3.5.6 Severe UTIs 21 3.5.7 Simple UTIs 21 3.5.8 Epididymo orchitis 22 3.6 Diagnosis 22 3.6.1 Physical examination 22 3.6.2 Laboratory tests 22 3.6.3 Imaging of the urinary tract 23 3.7 Schedule of investigation 24 3.8 Treatment 24 3.8.1 Severe UTIs 25 3.8.2 Simple UTIs 25 3.9 References 26 4. -
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 . -
Novel Antibiotics for Multidrug-Resistant Gram- Positive Microorganisms
Review Novel Antibiotics for Multidrug-Resistant Gram- Positive Microorganisms Despoina Koulenti 1,2,*, Elena Xu 1, Isaac Yin Sum Mok 1,†, Andrew Song 1,†, Drosos E. Karageorgopoulos 3, Apostolos Armaganidis 2, Jeffrey Lipman 1,4,5,‡ and SotiriosTsiodras 3,‡ 1 UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, QLD 4072, Australia 2 2nd Critical Care Department, Attikon University Hospital, 12462 Athens, Greece 3 4th Department of Internal Medicine, Attikon University Hospital, 12462 Athens, Greece 4 Department of Intensive Care Medicine, Royal Brisbane and Women’s Hospital, 4029 Brisbane, Australia 5 Anesthesiology and Critical Care, Centre Hospitalier Universitaire De Nîmes (CHU), University of Montpellier, 30029 Nîmes, France * Correspondence: [email protected] † Equal contribution-both 3rd authors. ‡ They are joint senior authors. Received: 13 July 2019; Accepted: 15 August 2019; Published: 18 August 2019 Abstract: Increasing multidrug-resistance to Gram-positive pathogens, particularly to staphylococci, enterococci and streptococci, is a major problem, resulting in significant morbidity, mortality and healthcare costs. In recent years, only a small number of novel antibiotics effective against Gram-positive bacteria has been approved. This review will discuss the current evidence for novel branded antibiotics that are highly effective in the treatment of multidrug-resistant infections by Gram-positive pathogens, namely ceftobiprole, ceftaroline, telavancin, oritavancin, dalbavancin, tedizolid, besifloxacin, delafloxacin, ozenoxacin, and omadacycline. The mechanism of action, pharmacokinetics, microbiological spectrum, efficacy and safety profile will be concisely presented. As for any emerging antibiotic agent, resistance is likely to develop against these highly effective antibiotics. Only through appropriate dosing, utilization and careful resistance development monitoring will these novel antibiotics continue to treat Gram-positive pathogens in the future. -
A Review on Anticancer and Antimicrobial Activity of Tetrafluoroquinolone Compounds
Central Annals of Medicinal Chemistry and Research Review Article *Corresponding author Mohammad Asif, Department of Pharmacy, GRD (PG) Institute of Management and Technology, Dehradun, A Review on Anticancer (Uttarakhand), 248009, India. Email: and Antimicrobial Activity Submitted: 10 August 2014 Accepted: 07 October 2014 Published: 25 November 2014 of Tetrafluoroquinolone Copyright © 2014 Asif Compounds OPEN ACCESS Mohammad Asif* Keywords Department of Pharmacy, GRD (PG) Institute of Management and Technology, India • Antibacterial activity • Anti cancer activity Abstract • Tetracyclic • Fluoroquinolone. The prokaryotic type II topoisomerases (DNA gyrase and topoisomerase IV) and the eukaryotic type II topoisomerases represent the cellular targets for quinolone antibacterial agents and a wide variety of anticancer drugs, respectively. In view of the mechanistic similarities and sequence homologies exhibited by the two enzymes, tentative efforts to selectively shift from an antibacterial to an antitumoral activity was made by a series of functionalized teracyclic fluoroquinolones. Thus, as part of a continuing search for potential anticancer drug candidates in the quinolones series, the interest in cytotoxicity of functionalized tetracyclic fluoroquinolones. The growth inhibitory activities of tetracyclic fluoroquinolones were against cancer cell lines using an in vitro cell culture system. Some of tetracyclic fluoroquinolones showed in vitro cytotoxic activity. The tetracyclic group of fluoroquinolones series changes the biological profile of quinolones from antibacterial to cytotoxic activity. The tetracyclic fluoroquinolones have excellent potential as a new class of cytotoxic agents. INTRODUCTION ring with a bridge between C-8 and N-1 is found in levofloxacin and Rufloxacin. Last generation FQLs demonstrated the favorable Fluoroquinolone (FQL), NorfloxacinFigure 1 is an antibacterial influence of an OCH3 substituent at position 8 on Gram positive agent with potent and broad spectrum activity and several and on anaerobic bacteria. -
Disabling and Potentially Permanent Side Effects Lead to Suspension Or Restrictions of Quinolone and Fluoroquinolone Antibiotics
16 November 2018 EMA/795349/2018 Disabling and potentially permanent side effects lead to suspension or restrictions of quinolone and fluoroquinolone antibiotics EMA has reviewed serious, disabling and potentially permanent side effects with quinolone and fluoroquinolone antibiotics given by mouth, injection or inhalation. The review incorporated the views of patients, healthcare professionals and academics presented at EMA’s public hearing on fluoroquinolone and quinolone antibiotics in June 2018. EMA’s human medicines committee (CHMP) has endorsed the recommendations of EMA’s safety committee (PRAC) and concluded that the marketing authorisation of medicines containing cinoxacin, flumequine, nalidixic acid, and pipemidic acid should be suspended. The CHMP confirmed that the use of the remaining fluoroquinolone antibiotics should be restricted. In addition, the prescribing information for healthcare professionals and information for patients will describe the disabling and potentially permanent side effects and advise patients to stop treatment with a fluoroquinolone antibiotic at the first sign of a side effect involving muscles, tendons or joints and the nervous system. Restrictions on the use of fluoroquinolone antibiotics will mean that they should not be used: • to treat infections that might get better without treatment or are not severe (such as throat infections); • to treat non-bacterial infections, e.g. non-bacterial (chronic) prostatitis; • for preventing traveller’s diarrhoea or recurring lower urinary tract infections (urine infections that do not extend beyond the bladder); • to treat mild or moderate bacterial infections unless other antibacterial medicines commonly recommended for these infections cannot be used. Importantly, fluoroquinolones should generally be avoided in patients who have previously had serious side effects with a fluoroquinolone or quinolone antibiotic. -
The Role of the Immune Response in the Effectiveness of Antibiotic Treatment for Antibiotic Susceptible and Antibiotic Resistant Bacteria
The role of the immune response in the effectiveness of antibiotic treatment for antibiotic susceptible and antibiotic resistant bacteria. by Olachi Nnediogo Anuforom A thesis submitted to the University of Birmingham for the degree of Doctor of Philosophy. Institute of Microbiology and Infection, School of Immunity and Infection, College of Medical and Dental Sciences, University of Birmingham. May, 2015. University of Birmingham Research Archive e-theses repository This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder. Abstract The increasing spread of antimicrobial resistant bacteria and the decline in the development of novel antibiotics have incited exploration of other avenues for antimicrobial therapy. One option is the use of antibiotics that enhance beneficial aspects of the host’s defences to infection. This study explores the influence of antibiotics on the innate immune response to bacteria. The aims were to investigate antibiotic effects on bacterial viability, innate immune cells (neutrophils and macrophages) in response to bacteria and interactions between bacteria and the host. Five exemplar antibiotics; ciprofloxacin, tetracycline, ceftriaxone, azithromycin and streptomycin at maximum serum concentration (Cmax) and minimum inhibitory concentrations (MIC) were tested. These five antibiotics were chosen as they are commonly used to treat infections and represent different classes of drug. -
Fluoroquinolone Antibacterials: a Review on Chemistry, Microbiology and Therapeutic Prospects
Acta Poloniae Pharmaceutica ñ Drug Research, Vol. 66 No. 6 pp. 587ñ604, 2009 ISSN 0001-6837 Polish Pharmaceutical Society REVIEV FLUOROQUINOLONE ANTIBACTERIALS: A REVIEW ON CHEMISTRY, MICROBIOLOGY AND THERAPEUTIC PROSPECTS PRABODH CHANDER SHARMA1*, ANKIT JAIN1 and SANDEEP JAIN2 1 Institute of Pharmaceutical Sciences, Kurukshetra University, Kurukshetra-136119, India 2 Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar-125001, India Abstract: Fluoroquinolones are one of the most promising and vigorously pursued areas of contemporary anti- infective chemotherapy depicting broad spectrum and potent activity. They have a relatively simple molecular nucleus, which is amenable to many structural modifications. These agents have several favorable properties such as excellent bioavailability, good tissue penetrability and a relatively low incidence of adverse and toxic effects. They have been found effective in treatment of various infectious diseases. This paper is an attempt to review the therapeutic prospects of fluoroquinolone antibacterials with an updated account on their develop- ment and usage. Keywords: fluoroquinolone, antibacterial, ciprofloxacin, therapeutic Antiinfective chemotherapy is the science of piratory tract infections (RTI), sexually transmitted administering chemical agents to treat infectious diseases (STD) and skin infections (5, 6). They are diseases. This practice has proven to be one of the primarily used against urinary tract infections and most successful of all pharmaceutical studies (1). are also clinically useful against prostatitis, infec- Historically, the use of anti-infective agents can be tions of skin and bones and penicillin resistant sex- credited with saving more human lives than any ually transmitted diseases (4). These agents are also other area of medicinal therapy discovered to date. -
The Grohe Method and Quinolone Antibiotics
The Grohe method and quinolone antibiotics Antibiotics are medicines that are used to treat bacterial for modern fluoroquinolones. The Grohe process and the infections. They contain active ingredients belonging to var- synthesis of ciprofloxacin sparked Bayer AG’s extensive ious substance classes, with modern fluoroquinolones one research on fluoroquinolones and the global competition of the most important and an indispensable part of both that produced additional potent antibiotics. human and veterinary medicine. It is largely thanks to Klaus Grohe – the “father of Bayer quinolones” – that this entirely In chemical terms, the antibiotics referred to for simplicity synthetic class of antibiotics now plays such a vital role for as quinolones are derived from 1,4-dihydro-4-oxo-3-quin- medical practitioners. From 1965 to 1997, Grohe worked oline carboxylic acid (1) substituted in position 1. as a chemist, carrying out basic research at Bayer AG’s Fluoroquinolones possess a fluorine atom in position 6. In main research laboratory (WHL) in Leverkusen. During this addition, ciprofloxacin (2) has a cyclopropyl group in posi- period, in 1975, he developed the Grohe process – a new tion 1 and also a piperazine group in position 7 (Figure A). multi-stage synthesis method for quinolones. It was this This substituent pattern plays a key role in its excellent achievement that first enabled him to synthesize active an- antibacterial efficacy. tibacterial substances such as ciprofloxacin – the prototype O 5 O 4 3 6 COOH F COOH 7 2 N N N 8 1 H N R (1) (2) Figure A: Basic structure of quinolone (1) (R = various substituents) and ciprofloxacin (2) Quinolones owe their antibacterial efficacy to their inhibition This unique mode of action also makes fluoroquinolones of essential bacterial enzymes – DNA gyrase (topoisomer- highly effective against a large number of pathogenic ase II) and topoisomerase IV.