1
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Amemiya T, Suzuki H. Retrospective analysis of risk factors for levofloxacin-induced liver injury. J Chemother 2023; 35:707-711. [PMID: 37151111 DOI: 10.1080/1120009x.2023.2203607] [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: 12/14/2022] [Revised: 03/27/2023] [Accepted: 04/12/2023] [Indexed: 05/09/2023]
Abstract
Levofloxacin is used as a first-line drug for the treatment of Legionella pneumonia. However, the relatively high incidence of drug-induced liver injury (DILI) remains a clinical problem. Based on the available patient data, this study aimed to identify the risk factors for DILI before levofloxacin administration. Multiple logistic regression analyses suggested that male sex (odds ratio [OR], 6.975; 95% confidence interval [CI], 1.737-28.000; p = 0.006), elevated C-reactive protein level (OR, 1.182; 95% CI, 1.089-1.283; p = 0.0006), and high haemoglobin level (OR, 1.640; 95% CI, 1.226-2.195; p = 0.001) before administration of levofloxacin were risk factors for DILI. Possible treatment with alternative drugs should be considered in male patients with elevated C-reactive protein and haemoglobin levels. Moreover, close monitoring of liver function tests when levofloxacin is administered may prevent the development and severity of DILI.
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Affiliation(s)
- Takahiro Amemiya
- Department of Pharmacy, The University of Tokyo Hospital, Tokyo, Japan
| | - Hiroshi Suzuki
- Department of Pharmacy, The University of Tokyo Hospital, Tokyo, Japan
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2
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Sato T, Ito R, Kawamura M, Fujimura S. The Drug-Specific Propensity Regarding the Acquisition of Fluoroquinolone Resistance in Escherichia coli: An in vitro Challenge and DNA Mutation Analysis. Infect Drug Resist 2023; 16:6357-6366. [PMID: 37789839 PMCID: PMC10543074 DOI: 10.2147/idr.s428383] [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: 07/24/2023] [Accepted: 09/21/2023] [Indexed: 10/05/2023] Open
Abstract
Objective Many fluoroquinolones, such as ciprofloxacin, are used clinically. We investigated the relationship between resistance acquisition and exposure duration in each drug through the exposure of fluoroquinolone to Escherichia coli clinical isolates in vitro. Methods Eleven E. coli clinical isolates were exposed to each fluoroquinolone, ie, ciprofloxacin, levofloxacin, sitafloxacin, garenoxacin, and lascufloxacin, with the concentration of the mutant selection window for 5 days; these procedures were repeated 5-times. In addition, the DNA sequence in the quinolone-resistance determining region (QRDR) and the expression level in the drug efflux pump acrA were analyzed to determine the resistance mechanism. Results Although resistant strains were not detected after 5 to 10 days of exposure to fluoroquinolone, after 25 days of exposure to ciprofloxacin and levofloxacin, 100% and 45% of isolates acquired resistance, respectively. Due to 25 days of exposure to sitafloxacin, garenoxacin, and lascufloxacin, MIC measurement was elevated 2- to 4096-fold for those of the parental strain, and the cross-resistance rate to levofloxacin was 72%, 54%, and 27%, respectively. In strains with high fluoroquinolone resistance, acrA overexpression was observed in addition to QRDR mutation. Conclusion In our findings, fluoroquinolone resistance was not observed in the E. coli strain after 5- to 10-days of exposure. However, resistance acquisition was detected frequently after 15- to 25-days of exposure. Among fluoroquinolones, lascufloxacn had the least impact on the resistance acquisition in E. coli.
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Affiliation(s)
- Takumi Sato
- Division of Clinical Infectious Diseases & Chemotherapy, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Ryota Ito
- Division of Clinical Infectious Diseases & Chemotherapy, Tohoku Medical and Pharmaceutical University, Sendai, Japan
- Department of Pharmacy, Japan Labor Health and Welfare Organization Tohoku Rosai Hospital, Sendai, Japan
| | - Masato Kawamura
- Division of Clinical Infectious Diseases & Chemotherapy, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Shigeru Fujimura
- Division of Clinical Infectious Diseases & Chemotherapy, Tohoku Medical and Pharmaceutical University, Sendai, Japan
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3
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LaPlante KL, Dhand A, Wright K, Lauterio M. Re-establishing the utility of tetracycline-class antibiotics for current challenges with antibiotic resistance. Ann Med 2022; 54:1686-1700. [PMID: 35723082 PMCID: PMC9225766 DOI: 10.1080/07853890.2022.2085881] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The progressive increase in antibiotic resistance in recent decades calls for urgent development of new antibiotics and antibiotic stewardship programs to help select appropriate treatments with the goal of minimising further emergence of resistance and to optimise clinical outcomes. Three new tetracycline-class antibiotics, eravacycline, omadacycline, and tigecycline, have been approved within the past 15 years, and represent a new era in the use of tetracyclines. These drugs overcome the two main mechanisms of acquired tetracycline-class resistance and exhibit a broad spectrum of in vitro activity against gram-positive, gram-negative, anaerobic, and atypical pathogens, including many drug-resistant strains. We provide an overview of the three generations of tetracycline-class drugs, focussing on the efficacy, safety, and clinical utility of these three new third-generation tetracycline-class drugs. We also consider various scenarios of unmet clinical needs where patients might benefit from re-engagement with tetracycline-class antibiotics including outpatient treatment options, patients with known β-lactam antibiotic allergy, reducing the risk of Clostridioides difficile infection, and their potential as monotherapy in polymicrobial infections while minimising the risk of any potential drug-drug interaction. KEY MESSAGESThe long-standing safety profile and broad spectrum of activity of tetracycline-class antibiotics made them a popular choice for treatment of various bacterial infections; unfortunately, antimicrobial resistance has limited the utility of the early-generation tetracycline agents.The latest generation of tetracycline-class antibiotics, including eravacycline, tigecycline, and omadacycline, overcomes the most common acquired tetracycline resistance mechanisms.Based on in vitro characteristics and clinical data, these newer tetracycline agents provide an effective antibiotic option in the treatment of approved indications in patients with unmet clinical needs - including patients with severe penicillin allergy, with renal or hepatic insufficiency, recent Clostridioides difficile infection, or polymicrobial infections, and those at risk of drug-drug interactions.
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Affiliation(s)
- Kerry L LaPlante
- College of Pharmacy, University of Rhode Island, Kingston, RI, USA
| | - Abhay Dhand
- Westchester Medical Center, New York Medical College, Valhalla, NY, USA
| | - Kelly Wright
- Paratek Pharmaceuticals, Inc, King of Prussia, PA, USA
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4
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Modemann F, Härterich S, Schulze zur Wiesch J, Rohde H, Lindeman NB, Bokemeyer C, Fiedler W, Ghandili S. Efficacy of Tigecycline as Salvage Therapy in Multidrug-Resistant Febrile Neutropenia in Patients with Acute Leukemia—A Single Center Analysis. Antibiotics (Basel) 2022; 11:antibiotics11020128. [PMID: 35203731 PMCID: PMC8868403 DOI: 10.3390/antibiotics11020128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 12/10/2022] Open
Abstract
Severe infectious complications remain the main cause of mortality in leukemia patients due to a long period of profound neutropenia. Standardized regimens for antimicrobial, antifungal, and antiviral prophylaxis and therapy in neutropenic patients have improved infection-associated mortality. Nevertheless, many patients are refractory to these multidrug approaches. Tigecycline is a last-resort antibiotic with a broad-spectrum activity; unfortunately, clinical experience in multidrug-resistant febrile neutropenia is limited. The aim was to evaluate the efficacy of tigecycline treatment in comparison to standard treatment in this patient cohort. In this single center analysis, we analyzed the clinical courses of 73 patients with acute leukemia and diagnosis of febrile neutropenia resistant to hospital-based multidrug escalation levels who continued on a standard approach without antibiotics as the last resort (n = 30) or were switched to tigecycline in addition to carbapenem treatment (n = 43). We observed comparable overall response rates (decrease in C-reactive protein or resolution of fever) in both patient cohorts. Switching the antibiotic approach to tigecycline showed lower absolute sepsis (33% vs. 47%, p = 0.235) and infection-associated mortality rates (5% vs. 13%, p = 0.221). Prospective larger randomized studies are necessary to underline these results and to be able to generate reliable statistics.
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Affiliation(s)
- Franziska Modemann
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany; (N.B.L.); (C.B.); (W.F.); (S.G.)
- Mildred Scheel Cancer Career Center, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
- Correspondence:
| | - Steffen Härterich
- Hospital Pharmacy, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany;
| | - Julian Schulze zur Wiesch
- Department of Internal Medicine, Division of Infectious Diseases, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany;
| | - Holger Rohde
- The Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany;
| | - Nick Benjamin Lindeman
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany; (N.B.L.); (C.B.); (W.F.); (S.G.)
| | - Carsten Bokemeyer
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany; (N.B.L.); (C.B.); (W.F.); (S.G.)
| | - Walter Fiedler
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany; (N.B.L.); (C.B.); (W.F.); (S.G.)
| | - Susanne Ghandili
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany; (N.B.L.); (C.B.); (W.F.); (S.G.)
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5
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Saleem N, Ryckaert F, Chandos Snow TA, Satta G, Singer M, Arulkumaran N. Mortality and clinical cure rates for pneumonia: A systematic review, meta-analysis, and trial sequential analysis of randomized control trials comparing bactericidal and bacteriostatic antibiotic treatments. Clin Microbiol Infect 2022; 28:936-945. [DOI: 10.1016/j.cmi.2021.12.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 12/07/2021] [Accepted: 12/25/2021] [Indexed: 11/03/2022]
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6
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Wang PF, Zou H, Zhu JH, Shi FE. Acute pancreatitis caused by tigecycline: A case report and literature review. Medicine (Baltimore) 2021; 100:e28245. [PMID: 34941095 PMCID: PMC8702249 DOI: 10.1097/md.0000000000028245] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 11/25/2021] [Indexed: 01/05/2023] Open
Abstract
RATIONALE There is evidence that tigecycline has broad-spectrum antibiotic activity against a variety of complicated infections. However, adverse effects are inevitable, including gastrointestinal side effects such as nausea, vomiting, and diarrhea; in 2006, acute pancreatitis was also brought into the side-effect list after postmarketing surveillance. Here, we present a case of tigecycline-induced acute pancreatitis. PATIENT CONCERNS An 87-year-old female patient with urinary tract infection received an intravenous drip of tigecycline for 6 days, after which she developed abdominal distension, vomiting, abdominal pain, and abdominal rigidity. DIAGNOSIS The patient was suspected to have tigecycline-induced acute pancreatitis. INTERVENTIONS Tigecycline was discontinued immediately, and the patient received a series of immediate treatments including an indwelling gastric tube for continuous gastrointestinal decompression and inhibition of gastric acid and pancreatic enzyme secretion. OUTCOMES Following initial interventions, we observed that the patient's symptoms improved significantly, and abdominal distension, vomiting, abdominal pain, and abdominal rigidity were slightly relieved. After 5 days of follow-up, blood lipase and amylase levels decreased to normal levels. Unfortunately, the patient developed convulsions during the use of multiple antibiotics after 1 week and then died of septic shock and acute liver failure. LESSONS Acute pancreatitis caused by tigecycline is rare. However, in the application of antibiotics, the possibility of adverse effects must be considered, and antibiotics should be used reasonably. If the patient has relevant symptoms, it is necessary to stop using tigecycline immediately, carry out symptomatic treatment, and change to other types of antibiotics for antibacterial treatment.
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7
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Montes-Andujar L, Tinoco E, Baez-Pravia O, Martin-Saborido C, Blanco-Schweizer P, Segura C, Prol Silva E, Reyes V, Rodriguez Cobo A, Zurdo C, Angel V, Varona O, Valero J, Suarez Del Villar R, Ortiz G, Villanueva J, Menéndez J, Blanco J, Torres A, Cardinal-Fernández PA. Empiric antibiotics for community-acquired pneumonia in adult patients: a systematic review and a network meta-analysis. Thorax 2021; 76:1020-1031. [PMID: 33723019 DOI: 10.1136/thoraxjnl-2019-214054] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 01/29/2021] [Accepted: 02/01/2021] [Indexed: 01/08/2023]
Abstract
OBJECTIVE The main aim of this network meta-analysis is to identify the empiric antibiotic (Em-ATB) with the highest probability of being the best (HPBB) in terms of (1) cure rate and (2) mortality rate in hospitalised patients with community acquired pneumonia (CAP) . METHOD Inclusion criteria: (1) adult patients (>16 years old) diagnosed with CAP that required hospitalisation; (2) randomised to at least two different Em-ATBs, (3) that report cure rate and (4) are written in English or Spanish. EXCLUSION CRITERIA (1) ambiguous antibiotics protocol and (2) published exclusively in abstract or letter format. DATA SOURCES Medline, Embase, Cochrane and citation reviews from 1 January 2000 to 31 December 2018. Risk of bias: Cochrane's tool. Quality of the systematic review (SR): A MeaSurement Tool to Assess systematic Reviews-2. Certainity of the evidence: Grading of Recommendations Assessment, Development and Evaluation. STATISTICAL ANALYSES frequentist method performed with the 'netmeta' library, R package. RESULTS 27 randomised controlled trials (RCTs) from the initial 41 307 screened citations were included. Regarding the risk of bias, more than one quarter of the studies presented low risk and no study presented high risk in all domains. The SR quality is moderate. For cure, two networks were constructed. Thus, two Em-ATBs have the HPBB: cetaroline 600 mg (two times a day) and piperacillin 2000 mg (two times a day). For mortality, three networks were constructed. Thus, three Em-ATBs have the HPBB: ceftriaxone 2000 mg (once a day) plus levofloxacin 500 (two times a day), ertapenem 1000 mg (two times a day) and amikacin 250 mg (two times a day) plus clarithromycin 500 mg (two times a day). The certainity of evidence for each results is moderate. CONCLUSION For cure rate, ceftaroline and piperaciline are the options with the HPBB. However, for mortality rate, the options are ceftriaxone plus levofloxacin, ertapenem and amikacin plus clarithromycin. It seems necessary to conduct an RCT that compares treatments with the HPBB for each event (cure or mortality) (CRD42017060692).
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Affiliation(s)
| | - Elena Tinoco
- Emergency Department, Hospital Universitario HM Sanchinarro, Madrid, Spain
| | | | - Carlos Martin-Saborido
- Escuela Nacional de Sanidad (ENS), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Centro de educación superior Hygiea, UDIMA, Madrid, Spain
| | - Pablo Blanco-Schweizer
- Intensive Care Unit, Rio Hortega University Hospital, Valladolid, Castilla y León, Spain
| | - Carmen Segura
- Intensive Care Unit, Rio Hortega University Hospital, Valladolid, Castilla y León, Spain
| | - Estefania Prol Silva
- Intensive Care Unit, Rio Hortega University Hospital, Valladolid, Castilla y León, Spain
| | - Vivivan Reyes
- Intensive Care Unit, Universidad del Bosque, Bogota, Colombia
| | - Ana Rodriguez Cobo
- Emergency Department, Hospital Universitario HM Sanchinarro, Madrid, Spain
| | - Carmen Zurdo
- Emergency Department, Hospital Universitario HM Sanchinarro, Madrid, Madrid, Spain
| | - Verónica Angel
- Emergency Department, Hospital Universitario HM Sanchinarro, Madrid, Spain
| | - Olga Varona
- Emergency Department, Hospital Universitario HM Sanchinarro, Madrid, Spain
| | - José Valero
- Emergency Department, Hospital Universitario HM Sanchinarro, Madrid, Spain
| | | | | | - Julio Villanueva
- Emergency Department, Hospital Universitario HM Sanchinarro, Madrid, Spain
| | - Justo Menéndez
- Emergency Department, Hospital Universitario HM Sanchinarro, Madrid, Spain
| | - Jesús Blanco
- Intensive Care Unit, Rio Hortega University Hospital, Valladolid, Castilla y León, Spain.,Biomedical Research Center Network for Respiratory Diseases (CIBERES), ISCIII, Madrid, Spain
| | - Antoni Torres
- UVIR, Hospital Clínic, Barcelona, Catalunya, Spain.,Biomedical Research Center Network for Respiratory Diseases (CIBERES), Madrid, Spain
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8
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Ben Mabrouk A, Ben Brahim H, Kooli I, Marrakchi W, Aouam A, Loussaief C, Toumi A, Chakroun M. [Off label uses of tigecycline]. ANNALES PHARMACEUTIQUES FRANÇAISES 2020; 79:244-254. [PMID: 33289663 DOI: 10.1016/j.pharma.2020.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 10/05/2020] [Accepted: 10/13/2020] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Tigecycline is a relatively new antibiotic that have very limited valid indications. When no other alternative is available, this drug is widely used off label with promising results. The objective of this study is to summarize the different off label uses of tigecycline so that we can decide when and how to prescribe it in the absence of guidelines. MATERIAL AND METHODS This study a revue of the literature collecting all the articles concerning the off label uses of tigecycline. RESULTS Tigecycline was widely prescribed, off label, to treat infections with controversial results. Randomised clinical trials were conducted to evaluate its use to treat pneumonia. The results for this indication have a respectable level of evidence. For the other indications, the data collected was insufficient to support tigecycline prescription. In fact, different protocols were used which makes it hard to evaluate the efficacy and to conclude to the best treatment regimen. A tendency to prescribe high doses of the molecule was noted in different studies. When prescribed off label, tigecycline prescriptions were associated with a higher mortality and incidence of side effects. CONCLUSION The tigecycline remains a valid option for the treatment of infections dues to multi-resistant bacteria especially when other alternatives are scarce or in cases of renal failure.
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Affiliation(s)
- A Ben Mabrouk
- University Hospital Fattouma Bourguiba of Monastir, Infectious Diseases Department, 5019 Monastir, Tunisie.
| | - H Ben Brahim
- University Hospital Fattouma Bourguiba of Monastir, Infectious Diseases Department, 5019 Monastir, Tunisie
| | - I Kooli
- University Hospital Fattouma Bourguiba of Monastir, Infectious Diseases Department, 5019 Monastir, Tunisie
| | - W Marrakchi
- University Hospital Fattouma Bourguiba of Monastir, Infectious Diseases Department, 5019 Monastir, Tunisie
| | - A Aouam
- University Hospital Fattouma Bourguiba of Monastir, Infectious Diseases Department, 5019 Monastir, Tunisie
| | - C Loussaief
- University Hospital Fattouma Bourguiba of Monastir, Infectious Diseases Department, 5019 Monastir, Tunisie
| | - A Toumi
- University Hospital Fattouma Bourguiba of Monastir, Infectious Diseases Department, 5019 Monastir, Tunisie
| | - M Chakroun
- University Hospital Fattouma Bourguiba of Monastir, Infectious Diseases Department, 5019 Monastir, Tunisie
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9
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Lo Priore E, Livermore DM, Buetti N, Jent P, Pelzer N, Casanova C, Furrer H, Babouee Flury B. Successful Treatment of Acute Prostatitis Caused by Multidrug-Resistant Escherichia coli With Tigecycline Monotherapy. Open Forum Infect Dis 2020; 7:ofz551. [PMID: 31988977 PMCID: PMC6975247 DOI: 10.1093/ofid/ofz551] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 01/07/2020] [Indexed: 11/14/2022] Open
Abstract
We present a successful treatment, with tigecycline monotherapy, of acute prostatitis caused by multidrug-resistant Escherichia coli harboring an NDM-1 carbapemenase along with a CMY-2 cephalosporinase and a TEM ESBL.
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Affiliation(s)
- Elia Lo Priore
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - David M Livermore
- Norwich Medical School, University of East Anglia, Norwich, United Kingdom
| | - Niccolo Buetti
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Philipp Jent
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Niklas Pelzer
- UroSwiss AG, Department of Urology, Oberaargau Regional Hospital, Langenthal, Switzerland
| | - Carlo Casanova
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Hansjakob Furrer
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Baharak Babouee Flury
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland.,Institute for Infectious Diseases, University of Bern, Bern, Switzerland
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10
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Lee CC, Lee CH, Yang CY, Hsieh CC, Tang HJ, Ko WC. Beneficial effects of early empirical administration of appropriate antimicrobials on survival and defervescence in adults with community-onset bacteremia. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2019; 23:363. [PMID: 31747950 PMCID: PMC6864953 DOI: 10.1186/s13054-019-2632-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 10/01/2019] [Indexed: 11/20/2022]
Abstract
Background Bloodstream infections are associated with high morbidity and mortality, both of which contribute substantially to healthcare costs. The effects of early administration of appropriate antimicrobials on the prognosis and timing of defervescence of bacteremic patients remain under debate. Methods In a 6-year retrospective, multicenter cohort, adults with community-onset bacteremia at the emergency departments (EDs) were analyzed. The period from ED arrival to appropriate antimicrobial administration and that from appropriate antimicrobial administration to defervescence was regarded as the time-to-appropriate antibiotic (TtAa) and time-to-defervescence (TtD), respectively. The primary study outcome was 30-day mortality after ED arrival. The effects of TtAa on 30-day mortality and delayed defervescence were examined after adjustment for independent predictors of mortality, which were recognized by a multivariate regression analysis. Results Of the total 3194 patients, a TtAa-related trend in the 30-day crude (γ = 0.919, P = 0.01) and sepsis-related (γ = 0.909, P = 0.01) mortality rate was evidenced. Each hour of TtAa delay was associated with an average increase in the 30-day crude mortality rate of 0.3% (adjusted odds ratio [AOR], 1.003; P < 0.001) in the entire cohort and 0.4% (AOR, 1.004; P < 0.001) in critically ill patients, respectively, after adjustment of independent predictors of 30-day crude mortality. Of 2469 febrile patients, a TtAa-related trend in the TtD (γ = 0.965, P = 0.002) was exhibited. Each hour of TtAa delay was associated with an average 0.7% increase (AOR, 1.007; P < 0.001) in delayed defervescence (TtD of ≥ 7 days) after adjustment of independent determinants of delayed defervescence. Notably, the adverse impact of the inappropriateness of empirical antimicrobial therapy (TtAa > 24 h) on the TtD was noted, regardless of bacteremia severity, bacteremia sources, or causative microorganisms. Conclusions The delay in the TtAa was associated with an increasing risk of delayed defervescence and 30-day mortality for adults with community-onset bacteremia, especially for critically ill patients. Thus, for severe bacteremia episodes, early administration of appropriate empirical antimicrobials should be recommended.
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Affiliation(s)
- Ching-Chi Lee
- Department of Internal Medicine, Madou Sin-Lau Hospital, No. 20, Lingzilin, 72152, Madou Dist., Tainan City, Taiwan.,Graduate Institute of Medical Sciences, College of Health Sciences, Chang Jung Christian University, Tainan, Taiwan.,Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng Li Road, 70403, Tainan, Taiwan
| | - Chung-Hsun Lee
- Department of Medicine, National Cheng Kung University Medical College, Tainan, Taiwan.,Department of Emergency Medicine, National Cheng Kung University Hospital, No. 138, Sheng Li Road, 70403, Tainan, Taiwan
| | - Chao-Yung Yang
- Department of Medicine, National Cheng Kung University Medical College, Tainan, Taiwan
| | - Chih-Chia Hsieh
- Department of Medicine, National Cheng Kung University Medical College, Tainan, Taiwan.,Department of Emergency Medicine, National Cheng Kung University Hospital, No. 138, Sheng Li Road, 70403, Tainan, Taiwan
| | - Hung-Jen Tang
- Division of Infectious Disease, Department of Medicine, Chi-Mei Medical Center, No. 901, Chung-Hwa Road, Yung-Kang City, 710, Tainan, Taiwan. .,Department of Health and Nutrition, Chia Nan University of Pharmacy and Science, Tainan, Taiwan.
| | - Wen-Chien Ko
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng Li Road, 70403, Tainan, Taiwan. .,Department of Medicine, National Cheng Kung University Medical College, Tainan, Taiwan.
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11
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Wald-Dickler N, Holtom P, Spellberg B. Busting the Myth of "Static vs Cidal": A Systemic Literature Review. Clin Infect Dis 2019; 66:1470-1474. [PMID: 29293890 DOI: 10.1093/cid/cix1127] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 12/22/2017] [Indexed: 01/19/2023] Open
Abstract
We sought to determine if clinical data validate the dogma that bactericidal antibiotics are more clinically effective than bacteriostatic agents. We performed a systematic literature review of published, randomized, controlled trials (RCTs) that compared a bacteriostatic agent to a bactericidal agent in the treatment of clinical, bacterial infections. Of 56 identified trials published since 1985, 49 found no significant difference in efficacy between bacteriostatic and bactericidal agents. In 6 trials it was found that the bacteriostatic agent was superior to the bactericidal agent in efficacy. Only 1 trial found that the bactericidal agent was superior; in that case, the inferiority of the static agent was explainable by underdosing of the drug based on pharmacokinetic-pharmacodynamic analysis. Thus, virtually all available data from high-quality, RCTs demonstrate no intrinsic superiority of bactericidal compared to bacteriostatic agents. Other drug characteristics such as optimal dosing, pharmacokinetics, and tissue penetration may be more important efficacy drivers.
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Affiliation(s)
- Noah Wald-Dickler
- Los Angeles County + University of Southern California Medical Center.,Division of Infectious Diseases, Keck School of Medicine at the University of Southern California, Los Angeles
| | - Paul Holtom
- Los Angeles County + University of Southern California Medical Center.,Division of Infectious Diseases, Keck School of Medicine at the University of Southern California, Los Angeles
| | - Brad Spellberg
- Los Angeles County + University of Southern California Medical Center.,Division of Infectious Diseases, Keck School of Medicine at the University of Southern California, Los Angeles
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12
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KARAMANLIOĞLU D, DİZBAY M. In vitro combination of tigecycline with other antibiotics in
Stenotrophomonas maltophilia isolates. Turk J Med Sci 2019; 49:683-686. [PMID: 30866602 PMCID: PMC7018222 DOI: 10.3906/sag-1808-55] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Background/aim The aim of this study was to determine the usefulness of tigecycline in combination treatment of Stenotrophomonas maltophilia infections by evaluating the in vitro synergistic effects of tigecycline with various antibiotics using the E-test method. Materials and methods Synergy testing by E-test was performed with various antibiotic combinations in 10 S. maltophilia isolates identified as a cause of infection. The antibiotics used in the study included tigecycline (TGC), cefoperazone-sulbactam (CPS), ceftazidime (TZ), levofloxacin (LEV), and trimethoprim-sulfamethoxazole (cotrimoxazole) (TS). Four different combinations (TGC-CPS, TGC-TZ, TGC-LEV, TGC-TS) were studied with the E-test synergy method. Results S. maltophilia isolates were found to have the highest level of susceptibility to trimethoprim-sulfamethoxazole, tigecycline, and levofloxacin. The fractional inhibitory concentration (FIC) index was calculated as FIC = MICAB/MICA + MICBA/MICB. The FIC index values were calculated and classified as synergistic (FIC < 0.5), additive (FIC = 0.5–1), indifferent (FIC = 1–4), and antagonistic (FIC > 4). According to FIC index values, synergy was found with the highest rate with TGC-CPS and TGC-LEV combinations (20%). Antagonistic activity was not found in any combination. Conclusion When trimethoprim-sulfamethoxazole cannot be used because of resistance or allergy, tigecycline alone or in combination may be included as an alternative option. Although in vitro results are promising, clinical data are required.
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Affiliation(s)
- Dilek KARAMANLIOĞLU
- Clinic of Infectious Diseases and Clinical Microbiology, Dr. Nafiz Körez State Hospital, Sincan, AnkaraTurkey
- * To whom correspondence should be addressed. E-mail:
| | - Murat DİZBAY
- Department of Infectious Diseases and Clinical Microbiology, School of Medicine, Gazi University, Beşevler, AnkaraTurkey
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Chen Z, Shi X. Adverse events of high-dose tigecycline in the treatment of ventilator-associated pneumonia due to multidrug-resistant pathogens. Medicine (Baltimore) 2018; 97:e12467. [PMID: 30235740 PMCID: PMC6160260 DOI: 10.1097/md.0000000000012467] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
The off-label uses of tigecycline (TGC) to treat ventilator-associated pneumonia (VAP) have aroused worldwide concerns. The efficacy about TGC has been recently reported. However, the adverse events (AEs) remain controversial. Our study aims to analyze the safety of the high-dose (HD) regimens in the treatment of VAP due to multidrug-resistant (MDR) pathogens.The clinical data of 134 patients who were diagnosed with VAP from January 2013 to December 2015 in the NeuroScience Care Unit (NCU) were analyzed retrospectively. The incidence and the occurrence time of AEs, 28-day mortality, and the factors of clinical effectiveness were explored.A total of 54 patients received the standard dose group (SD), 69 in the HD, and 11 in the nonstandard HD group (NHD). Acinetobacter baumannii were the main pathogenic bacteria. There was no statistic difference in the incidence of AEs and the 28-day mortality among the 3 groups (P > .05). Total bilirubin (TBIL) increased significantly after SD of TGC treatment (P = .004). Liver dysfunction occurred the latest (10.83 ± 7.08), not in the duration of HD group (9.63 ± 3.92), whereas in the SD group (13.00 ± 7.57) and NHD group (12.64 ± 3.70). Patients with septic shock, MODS, and higher APACHE II score were of high risk in mortality. The HD group was associated with higher clinical effective rate and bacteria clearance rate.HD TGC was relatively safe and tolerable in ICU patients. The risk of side effects was related to the TGC duration, although not increased as the dosage rose. Full course of the HD regimen was associated with better outcomes for the treatment of VAP patients, especially for the MDR gram-negative bacilli infection. Inappropriate antimicrobial treatment might lead to clinical treatment failure.
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Oran AR, Adams CM, Zhang XY, Gennaro VJ, Pfeiffer HK, Mellert HS, Seidel HE, Mascioli K, Kaplan J, Gaballa MR, Shen C, Rigoutsos I, King MP, Cotney JL, Arnold JJ, Sharma SD, Martinez-Outschoorn UE, Vakoc CR, Chodosh LA, Thompson JE, Bradner JE, Cameron CE, Shadel GS, Eischen CM, McMahon SB. Multi-focal control of mitochondrial gene expression by oncogenic MYC provides potential therapeutic targets in cancer. Oncotarget 2018; 7:72395-72414. [PMID: 27590350 PMCID: PMC5340124 DOI: 10.18632/oncotarget.11718] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 08/25/2016] [Indexed: 12/14/2022] Open
Abstract
Despite ubiquitous activation in human cancer, essential downstream effector pathways of the MYC transcription factor have been difficult to define and target. Using a structure/function-based approach, we identified the mitochondrial RNA polymerase (POLRMT) locus as a critical downstream target of MYC. The multifunctional POLRMT enzyme controls mitochondrial gene expression, a process required both for mitochondrial function and mitochondrial biogenesis. We further demonstrate that inhibition of this newly defined MYC effector pathway causes robust and selective tumor cell apoptosis, via an acute, checkpoint-like mechanism linked to aberrant electron transport chain complex assembly and mitochondrial reactive oxygen species (ROS) production. Fortuitously, MYC-dependent tumor cell death can be induced by inhibiting the mitochondrial gene expression pathway using a variety of strategies, including treatment with FDA-approved antibiotics. In vivo studies using a mouse model of Burkitt's Lymphoma provide pre-clinical evidence that these antibiotics can successfully block progression of MYC-dependent tumors.
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Affiliation(s)
- Amanda R Oran
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Clare M Adams
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Xiao-Yong Zhang
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Victoria J Gennaro
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Harla K Pfeiffer
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Hestia S Mellert
- Biomedical Graduate Studies, University of Pennsylvania, Philadelphia, PA, USA
| | - Hans E Seidel
- Department of Cancer Biology and Abramson Family Cancer Research Institute, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - Kirsten Mascioli
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jordan Kaplan
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Mahmoud R Gaballa
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Chen Shen
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA.,Molecular and Cellular Biology Program, Stony Brook University, Stony Brook, NY, USA
| | - Isidore Rigoutsos
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Michael P King
- Department of Biochemistry, Thomas Jefferson University, Philadelphia, PA, USA
| | - Justin L Cotney
- Genetics and Genome Sciences, University of Connecticut Health, Farmington, CT, USA
| | - Jamie J Arnold
- Department of Biochemistry & Molecular Biology, The Pennsylvania State University, University Park, PA, USA
| | - Suresh D Sharma
- Department of Biochemistry & Molecular Biology, The Pennsylvania State University, University Park, PA, USA
| | | | | | - Lewis A Chodosh
- Department of Cancer Biology and Abramson Family Cancer Research Institute, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - James E Thompson
- Leukemia Service, Department of Medicine, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - James E Bradner
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA,USA
| | - Craig E Cameron
- Department of Biochemistry & Molecular Biology, The Pennsylvania State University, University Park, PA, USA
| | - Gerald S Shadel
- Department of Pathology, Yale School of Medicine, New Haven, CT, USA.,Department of Genetics, Yale School of Medicine, New Haven, CT, USA
| | - Christine M Eischen
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Steven B McMahon
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
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15
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Tucker H, Wible M, Gandhi A, Quintana A. Efficacy of intravenous tigecycline in patients with Acinetobacter complex infections: results from 14 Phase III and Phase IV clinical trials. Infect Drug Resist 2017; 10:401-417. [PMID: 29138583 PMCID: PMC5679678 DOI: 10.2147/idr.s143306] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Background Acinetobacter infections, especially multidrug-resistant (MDR) Acinetobacter infections, are a global health problem. This study aimed to describe clinical outcomes in patients with confirmed Acinetobacter spp. isolates who were treated with tigecycline in randomized clinical trials. Materials and methods Data from 14 multinational, randomized (open-label or double-blind), and active-controlled (except one) Phase III and IV studies were analyzed using descriptive statistics. Results A total of 174 microbiologically evaluable patients with Acinetobacter spp. infections (including MDR infections) were identified, and 95 received tigecycline to treat community-acquired pneumonia (CAP), diabetic foot infections (DFIs), hospital-acquired pneumonia (HAP), complicated intra-abdominal infections (cIAIs), infections with resistant pathogens (RPs), or complicated skin and skin-structure infections. The rate of cure of tigecycline for most indications was 70%–80%, with the highest (88.2%) in cIAIs. The rate of cure of the comparators was generally higher than tigecycline, but within each indication the 95% CIs for clinical cure for each treatment group overlapped. For most Acinetobacter isolates, the minimum inhibitory concentration of tigecycline was 0.12–2 μg/mL, with seven at 4 μg/mL and one at 8 μg/mL. The cure rate by tigecycline was 50% (95% CI 12.5%–87.5% in CAP) to 88.2% (95% CI 66.2%–97.1% in cIAIs) for all Acinetobacter, and 72.7% (95% CI 54.5%–93.2% in HAP) to 100% (95% CI 25%–100.0% in cIAIs) for MDR Acinetobacter. For the comparators, it was 83.8% (95% CI 62.8%–95.9% in HAP) to 100% (95% CI 75%–100% in cIAIs and 25%–100.0% in RPs) and 88% (95% CI 66%–97% in HAP) to 100% (95% CI 25%–100% in cIAIs and 75%–100% in DFIs), respectively. Conclusion These findings suggest that with appropriate monitoring, tigecycline may be a useful consideration for Acinetobacter infections alone or in combination with other anti-infective agents when other therapies are not suitable.
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Vardakas KZ, Trigkidis KK, Boukouvala E, Falagas ME. Clostridium difficile infection following systemic antibiotic administration in randomised controlled trials: a systematic review and meta-analysis. Int J Antimicrob Agents 2016; 48:1-10. [PMID: 27216385 DOI: 10.1016/j.ijantimicag.2016.03.008] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 03/11/2016] [Accepted: 03/19/2016] [Indexed: 12/17/2022]
Abstract
Antibiotics have been the most important risk factor for Clostridium difficile infection (CDI). However, only data from non-randomised studies have been reviewed. We sought to evaluate the risk for development of CDI associated with the major antibiotic classes by analysing data from randomised controlled trials (RCTs). The PubMed, Cochrane and Scopus databases were searched and the references of selected RCTs were also hand-searched. Eligible studies should have compared only one antibiotic versus another administered systemically. Inclusion of studies comparing combinations of antibiotics was allowed only if the second antibiotic was the same or from the same class or if it was administered in a subset of the enrolled patients who were equally distributed in the two arms. Only a minority of the selected RCTs (79/1332; 5.9%) reported CDI episodes. Carbapenems were associated with more CDI episodes than fluoroquinolones [risk ratio (RR) = 2.44, 95% confidence interval (CI) 1.32-4.49] and cephalosporins (RR = 2.24, 95% CI 1.46-3.42), but not penicillins (RR = 2.53, 95% CI 0.87-7.41). Cephalosporins were associated with more CDIs than penicillins (RR = 2.36, 95% CI 1.32-4.23) and fluoroquinolones (RR = 2.84, 95% CI 1.60-5.06). There was no difference in CDI frequency between fluoroquinolones and penicillins (RR = 1.34, 95% CI 0.55-3.25). Finally, clindamycin was associated with more CDI episodes than cephalosporins and penicillins (RR = 3.92, 95% CI 1.15-13.43). In conclusion, data from RCTs showed that clindamycin and carbapenems were associated with more CDIs than other antibiotics.
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Affiliation(s)
- Konstantinos Z Vardakas
- Alfa Institute of Biomedical Sciences, Athens, Greece; Department of Internal Medicine-Infectious Diseases, IASO General Hospital, IASO Group, Athens, Greece.
| | | | - Eleni Boukouvala
- Department of Applied Mathematics and Physics, National Technical University of Athens, Athens, Greece
| | - Matthew E Falagas
- Alfa Institute of Biomedical Sciences, Athens, Greece; Department of Internal Medicine-Infectious Diseases, IASO General Hospital, IASO Group, Athens, Greece; Department of Medicine, Tufts University School of Medicine, Boston, MA, USA
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18
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Jeong YJ, Ghanh B, Lee JW, Park J, Kim TB, Cho YS, Moon HB, Kwon HS. Rapid-onset of severe tigecycline-induced coagulopathy in drug reaction with eosinophilia and systemic symptom syndrome. ALLERGY ASTHMA & RESPIRATORY DISEASE 2016. [DOI: 10.4168/aard.2016.4.1.74] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yeong Jin Jeong
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Byeongzu Ghanh
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji Wan Lee
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jinoh Park
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Tae-Bum Kim
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - You Sook Cho
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hee-Bom Moon
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyouk-Soo Kwon
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Shen F, Han Q, Xie D, Fang M, Zeng H, Deng Y. Efficacy and safety of tigecycline for the treatment of severe infectious diseases: an updated meta-analysis of RCTs. Int J Infect Dis 2015; 39:25-33. [PMID: 26283551 DOI: 10.1016/j.ijid.2015.08.009] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 08/04/2015] [Accepted: 08/09/2015] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES To assess the efficacy and safety of tigecycline in comparison with other antimicrobial treatments for infectious diseases. DESIGN Databases of PubMed, Embase and the Cochrane Library were searched through Feb. 2015. The reference lists of the initially identified articles and systemic review articles were manually searched. Randomized controlled trials assessing tigecycline and other antibiotics for infectious diseases in adult patients were included. RESULTS Fifteen RCTs including 7689 cases were identified. We found that tigecycline was not as effective as the comparator agents for clinical treatment success (for the clinically evaluable population, odds ratio [OR] = 0.83, 95% confidence interval [CI] = (0.73, 0.96), P=0.01; for the clinically modified intent-to-treat (mITT) population, OR = 0.81, 95% CI = (0.72, 0.92), P=0.001). There was no significant difference in microbiological treatment success with lower eradication rate in tigecycline versus comparators (for the microbiologically evaluable population, OR = 0.94, 95% CI = (0.77, 1.16), P=0.56; for the microbiological mITT populations, OR = 0.91, 95% CI = (0.74, 1.11), P=0.35). Adverse events and all-cause mortality were more common in the tigecycline group. CONCLUSIONS Tigecycline is not as effective as other antibiotics with relatively more frequency of adverse events and higher mortality rate.
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Affiliation(s)
- Fengcai Shen
- Department of Critical Care Medicine and Emergency, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, People's Republic of China; Shantou University Medical College, Shantou, Guangdong, People's Republic of China.
| | - Qianpeng Han
- Department of Critical Care Medicine and Emergency, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, People's Republic of China.
| | - Di Xie
- Department of Critical Care Medicine and Emergency, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, People's Republic of China.
| | - Ming Fang
- Department of Critical Care Medicine and Emergency, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, People's Republic of China.
| | - Hongke Zeng
- Department of Critical Care Medicine and Emergency, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, People's Republic of China.
| | - Yiyu Deng
- Department of Critical Care Medicine and Emergency, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, People's Republic of China.
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Rodríguez-Baño J, Cisneros JM, Cobos-Trigueros N, Fresco G, Navarro-San Francisco C, Gudiol C, Horcajada JP, López-Cerero L, Martínez JA, Molina J, Montero M, Paño-Pardo JR, Pascual A, Peña C, Pintado V, Retamar P, Tomás M, Borges-Sa M, Garnacho-Montero J, Bou G. Diagnosis and antimicrobial treatment of invasive infections due to multidrug-resistant Enterobacteriaceae. Guidelines of the Spanish Society of Infectious Diseases and Clinical Microbiology. Enferm Infecc Microbiol Clin 2015; 33:337.e1-337.e21. [DOI: 10.1016/j.eimc.2014.11.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 11/21/2014] [Indexed: 12/21/2022]
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Avni T, Shiver-Ofer S, Leibovici L, Tacconelli E, DeAngelis G, Cookson B, Pagani L, Paul M. Participation of elderly adults in randomized controlled trials addressing antibiotic treatment of pneumonia. J Am Geriatr Soc 2015; 63:233-43. [PMID: 25688601 DOI: 10.1111/jgs.13250] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To examine how relevant current evidence on antibiotic treatment of pneumonia is for elderly adults. DESIGN Systematic review. SETTING Randomized controlled trials (RCTs; N = 43) comparing different antibiotics and prospective observational studies (N = 182) published since 2005. PARTICIPANTS Adults with community-acquired (CAP), healthcare-associated (HCAP), hospital-acquired (HAP), or ventilator-associated (VAP) pneumonia. MEASUREMENTS Exclusion criteria that could preferentially limit participation of elderly adults were examined, subgroup or other adjusted analyses were searched for according to age, and treatment effects in participants younger than 65 in RCTs were compared with those in participants aged 65 and older. Mean participant ages in RCTs and observational studies were compared. Risk ratios (RRs) with 95% confidence intervals (CIs) for differences between older and younger adults were pooled using a fixed effect metaanalysis. RESULTS No RCT reported exclusion based on an upper age limit; 100% of community CAP trials, 90% of hospitalized CAP trials, and 76% of HAP and VAP trials excluded individuals based on comorbidities. None of the RCTs reported a subgroup analysis for mortality according to age. The RR for the pooled difference in treatment failure rates between participants younger than 65 and those aged 65 and older was 1.25 (95% CI = 0.94-1.65, 12 RCTs) and between participants younger than 75 and aged 75 and older was 1.43 (95% CI = 0.98-2.09, 7 RCTs). RCT participants were significantly younger (54.0 ± 9.6) than those in observational studies of CAP (66.2 ± 8.1, P < .001). Age differences were not significant for HCAP, HAP, and VAP. CONCLUSION Elderly adults are often excluded from RCTs of bacterial pneumonia. No data were found on the comparative efficacy of antibiotic treatment in elderly adults and the general population.
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Affiliation(s)
- Tomer Avni
- Department of Internal Medicine E, Rabin Medical Center, Beilinson Hospital and Sackler Faculty of Medicine, Tel-Aviv University, Israel
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Efficacy of tigecycline for secondary Acinetobacter bacteremia and factors associated with treatment failure. Antimicrob Agents Chemother 2015; 59:3637-40. [PMID: 25824230 DOI: 10.1128/aac.04987-14] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 03/24/2015] [Indexed: 12/14/2022] Open
Abstract
We describe the clinical outcome of 17 patients with secondary Acinetobacter bacteremia whose isolates had a tigecycline MIC of ≤2 mg/liter and who received tigecycline within 2 days of bacteremia onset. The 14-day mortality rate of the tigecycline cohort was 41.2% (7/17), which was significantly higher than that of those receiving other appropriate antimicrobial agents (13.8%, 9/65; P = 0.018). However, the percentages of end-stage renal disease and congestive heart failure were higher in the tigecycline cohort. The efficacy of tigecycline was contingent upon the illness severity and bacterial species. Tigecycline should be applied cautiously for treatment of Acinetobacter bacteremia.
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Nemeth J, Oesch G, Kuster SP. Bacteriostatic versus bactericidal antibiotics for patients with serious bacterial infections: systematic review and meta-analysis. J Antimicrob Chemother 2014; 70:382-95. [DOI: 10.1093/jac/dku379] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Poulakou G, Bassetti M, Righi E, Dimopoulos G. Current and future treatment options for infections caused by multidrug-resistant Gram-negative pathogens. Future Microbiol 2014; 9:1053-69. [DOI: 10.2217/fmb.14.58] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
ABSTRACT The spread of multidrug-resistant, extensively drug-resistant and pan-drug-resistant pathogens is causing an unprecedented public health crisis. The limited current therapeutic options led to the revival of two ‘old’ antibiotics – colistin and fosfomycin – for which a better understanding of their pharmacokinetics in the critically ill patient and in specific body compartments is required. Tigecycline's use in clinical practice for nonapproved indication based on its in vitro activity against problematic pathogens requires caution and probably higher doses. Furthermore, all three antibiotics should be used as part of combination regimens in order to prevent resistance and optimize outcomes. The development of new antibacterials in the near future, namely combinations of avibactam, ceftolozane/tazobactam and plazomicin, seems promising; however, they will only partially address current mechanisms of resistance.
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Affiliation(s)
- Garyphallia Poulakou
- 4th Department of Internal Medicine, Athens University School of Medicine, Attikon University General Hospital, 1 Rimini Street, Athens 12462, Greece
| | - Matteo Bassetti
- Infectious Disease Division, Azienda Ospedaliera Universitaria Santa Maria della Misericordia, Piazzale Santa Maria della Misericordia 15, 33100 Udine, Italy
| | - Elda Righi
- Infectious Disease Division, Azienda Ospedaliera Universitaria Santa Maria della Misericordia, Piazzale Santa Maria della Misericordia 15, 33100 Udine, Italy
| | - George Dimopoulos
- Department of Critical Care, Medical School, University of Athens, University Hospital ATTIKON, 1 Rimini Street, Haidari, 12462 Athens, Greece
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Garnacho-Montero J, Ferrándiz-Millón C. High dose of tigecycline for extremely resistant Gram-negative pneumonia: yes, we can. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2014; 18:157. [PMID: 25043402 PMCID: PMC4075419 DOI: 10.1186/cc13942] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Few antimicrobials are currently active to treat infections caused by extremely resistant Gram-negative bacilli (ERGNB), which represent a serious global public health concern. Tigecycline, which covers the majority of these ERGNB (with the exception of Pseudomonas aeruginosa), is not currently approved for hospital-acquired pneumonia, and several meta-analyses have suggested an increased risk of death in patients receiving this antibiotic. Other studies suggest that the use of high-dose tigecycline may represent an alternative in daily practice. De Pascale and colleagues report that the clinical cure rate in patients with ventilator-associated pneumonia is significantly higher with a high dose of tigecycline than with the conventional dose, although mortality was unaffected. This high dose is safe; no patients required discontinuation or dose reduction.
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Tigecycline use in critically ill patients: a multicentre prospective observational study in the intensive care setting. Intensive Care Med 2014; 40:988-97. [PMID: 24871500 PMCID: PMC4061476 DOI: 10.1007/s00134-014-3323-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 04/25/2014] [Indexed: 02/08/2023]
Abstract
PURPOSE This prospective observational study aimed at describing prescription patterns of tigecycline and patient outcomes in 26 French intensive care units (ICU). METHODS Data of consecutive cases of adult patients treated with tigecycline were collected from the initiation until 7 days after the end of treatment. Response to treatment was classified as success, failure or undetermined and analyses were presented according to severity (SOFA score <7 or ≥7). Survival was recorded at 28 days. RESULTS A total of 156 patients were included (64% male, age 60 ± 15 years). At inclusion, 53% had a SOFA score ≥7; 93% had received prior anti-infective agents. Tigecycline was given as first-line treatment in 47% of patients, mostly in combination (67%), for intra-abdominal (IAI 56%), skin and soft tissue (SSTI 19%) or other infections. A total of 76% of the treated infections were hospital-acquired. Bacteraemia was reported in 12% of patients. Median treatment duration was 9 days. Tigecycline was prematurely stopped in 42% patients. The global success rate was 60% at the end of treatment, and significantly higher with treatment duration more than 9 days (76 vs. 47%, P < 0.001). Success rate was 65% for patients alive at the end of treatment. Success rates tended to decrease with illness severity, immunosuppression, bacteraemia and obesity. Survival rate at day 28 was 85% in the whole cohort and significantly higher in the less severely ill patients (P < 0.001). CONCLUSIONS Tigecycline success rates appear comparable to those reported in clinical studies in ICU with severe infections. Tigecycline could be an alternative in ICU patients.
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Xie J, Wang T, Wang X, Cheng X, Dong H, Wang Y, Zheng X, Zhou L, Xing J, Dong Y. Quantitative analysis and pharmacokinetics study of tigecycline in human serum using a validated sensitive liquid chromatography with tandem mass spectrometry method. J Sep Sci 2014; 37:1396-403. [PMID: 24659422 DOI: 10.1002/jssc.201400152] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 03/13/2014] [Accepted: 03/15/2014] [Indexed: 11/06/2022]
Abstract
Tigecycline, a novel intravenously administered glycylcycline antibiotic, currently plays a key role in the management of complicated multiorganism infections. However, current liquid chromatography with tandem mass spectrometry methods briefly describe parameters and the only reported internal standard was sometimes difficult to obtain. In our study, an updated liquid chromatography with tandem mass spectrometry method for the quantitative analysis of tigecycline in human serum was developed. Sample preparation involved precipitation with 20% trichloroacetic acid. Chromatographic separation of tigecycline and tetracycline (internal standard) was achieved on a Hypersil GOLD C18 column using gradient elution. The selected reaction monitoring transitions were performed at m/z 586.1→513.2 for tigecycline and m/z 445.1→410.2 for tetracycline. The assay was linear over the concentration range of 5-2000 ng/mL. The intra- and interday precisions at three concentration levels (10, 100, and 1600 ng/mL) were <15% and their accuracies were within the range of 95.1-106.1%. The mean recovery ranged from 94.3 to 105.6% and the matrix effect from 92.1 to 97.6%. Tigecycline was stable under all tested conditions. This validated method was successfully applied to a pharmacokinetic study in critically ill patients. The data demonstrated that our method allows quantification of tigecycline in serum in a quick and reliable manner for widespread application.
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Affiliation(s)
- Jiao Xie
- Department of Pharmacy, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
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Dixit D, Madduri RP, Sharma R. The role of tigecycline in the treatment of infections in light of the new black box warning. Expert Rev Anti Infect Ther 2014; 12:397-400. [DOI: 10.1586/14787210.2014.894882] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Zavascki AP, Carvalhaes CG, Picão RC, Gales AC. Multidrug-resistantPseudomonas aeruginosaandAcinetobacter baumannii: resistance mechanisms and implications for therapy. Expert Rev Anti Infect Ther 2014; 8:71-93. [DOI: 10.1586/eri.09.108] [Citation(s) in RCA: 203] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Assessment of bias in outcomes reported in trials on pneumonia: a systematic review. Eur J Clin Microbiol Infect Dis 2013; 33:969-74. [PMID: 24352842 DOI: 10.1007/s10096-013-2034-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 12/08/2013] [Indexed: 10/25/2022]
Abstract
Subjective outcomes may exaggerate intervention effects compared to objectively measured outcomes. We compared effect estimates for clinical failure and all-cause mortality clinical trials of antibiotic treatment for pneumonia. A systematic review of randomized controlled trials assessing adults with pneumonia, comparing different antibiotics, published between 2005 and 2012 was undertaken. We compared the intervention to the control arm. The all-cause mortality in the intention-to-treat population and clinical failure as defined by the study investigators for the primary analyzed population were the primary outcomes examined. Risk ratios (RRs) with 95 % confidence intervals (CIs) were pooled, using a fixed effect model. Meta-regression was used to examine the impact of clinical failure on the mortality effect size. Thirty-six trials were included, of which 30 were industry-sponsored and 30 were non-inferiority trials. There was no difference between the effect on mortality for intervention versus control (RR 1.02, 95 % CI 0.91-1.16) and clinical failure (RR 1.01, 95 % CI 0.93-1.10), without significant heterogeneity in both analyses. In double-blind trials with adequate sequence generation and concealment, there was a significant advantage to the intervention for clinical failure (RR 0.86, 95 % CI 0.76-0.98), but not for mortality (RR 0.96, 95 % CI 0.76-1.21). RRs for clinical failure did not explain the variability in the RRs for mortality significantly, with a meta-regression coefficient of 0.32 (95 % CI -0.21-0.85). In non-inferiority trials of antibiotic treatment for pneumonia, we did not find evidence for bias induced by the use of a subjective outcome overall. The small number of trials without sponsorship precludes an adequate assessment of sponsorship effects.
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Abstract
PURPOSE OF REVIEW Community-acquired pneumonia (CAP) contributes significantly to morbidity and mortality, especially in the elderly. Recent advances aimed at improving outcomes and reducing CAP disease burden are summarized. RECENT FINDINGS Emerging data suggests that newer CAP risk stratification indices based on disease severity hold promise in predicting intensive care need. Additional evidence supports a role of procalcitonin and pro-adrenomedullin as biomarkers of disease severity and for guiding antimicrobial therapy. New diagnostic tools have greatly contributed to early diagnosis and better-targeted therapy. There is increasing recognition of the role of coinfections in CAP. In patients with severe disease, therefore, current guidelines advise against monotherapy. Although inclusion of coverage for atypical pathogens in nonsevere CAP has been challenged, evidence suggests that such coverage is beneficial in patients with severe disease. Use of steroids as adjunctive therapy for CAP, however, is associated with complications and prolonged hospitalization. Updated prevention strategies include approval of pneumococcal conjugate vaccine (PCV13) for adults at risk. SUMMARY Despite these developments research aimed at further reducing CAP-related morbidity and mortality is required. Increasing global life expectancy is likely to expand the at-risk population; therefore, research directed at CAP prevention in view of changing demography is essential.
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Schwab KS, Hahn-Ast C, Heinz WJ, Germing U, Egerer G, Glasmacher A, Leyendecker C, Marklein G, Nellessen CM, Brossart P, von Lilienfeld-Toal M. Tigecycline in febrile neutropenic patients with haematological malignancies: a retrospective case documentation in four university hospitals. Infection 2013; 42:97-104. [PMID: 23979853 DOI: 10.1007/s15010-013-0524-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Accepted: 08/09/2013] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Tigecycline (TGC) is a first-in-class glycylcycline with an expanded spectrum of activity. Although TGC has not been prospectively studied in febrile neutropenia (FN), we observed that occasionally critically ill neutropenic patients unresponsive to other antibiotics were treated with TGC in our departments. The aim of our study was to analyse effectiveness and toxicity of TGC in FN. METHODS Data of infectious episodes treated with TGC were retrospectively collected. Baseline data of patients, haematological malignancy, infection and adverse events were documented. Success was defined as defervescence (≥7 days) in the absence of any sign of persistent infection. RESULTS Data of 35 patients with haematological malignancies and FN were evaluated. Median duration of neutropenia was 25 days (range 6-69 days). The type of infection was pneumonia in 24 patients, four microbiologically documented infections, three clinically documented infections and four with fever of unknown origin. The TGC was administered after a median of two (range 1-5) prior antibiotic regimens. Treatment was successful in 15 (43 %) patients. In patients with prolonged neutropenia (≥28 days), response was significantly lower (13 vs. 79 %; p =0.001). Eight (23 %) patients died during the fever episode. Grade 3-4 toxicity occurred in five (14 %) patients. CONCLUSION Our results showed promising response rates to TGC and very low toxicity rates compared to the generally low response rate of third-line antibiotic therapies, indicating that TGC may be a successful alternative for salvage treatment of febrile neutropenia, but further study is needed.
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Affiliation(s)
- K S Schwab
- Department of Internal Medicine III, University of Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany,
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Abstract
INTRODUCTION Community-acquired pneumonia (CAP) is a leading cause of morbidity and mortality worldwide. Management decisions regarding site of care, extent of assessment and level of treatment are based primarily on disease severity (outpatient, inpatient and ICU admission). Despite the developments in antibiotic therapy, CAP is still the most common infectious cause of death. AREAS COVERED There are several challenges with the management of CAP, from the accurate diagnosis, decisions about place of therapy and the choice of appropriate antibiotics. An extensive literature review of manuscripts, in PubMed, published in the past 10 years has been performed, using combinations of words and terms appropriate to the concepts of CAP, treatment, guidelines and corticoids. Some empirical antimicrobial regimens, such as macrolides, are still being debated; some new antibiotics and adjunctive therapies (corticoids) have recently been tested. This is a review of current recommended antimicrobials regimens, novel approaches and adjunctive drugs for the treatment of CAP. EXPERT OPINION Effective management of CAP requires risk stratification of patients by severity and proper place of therapy. Additional therapeutic interventions along with antibiotics may help to improve outcome in patients with CAP, especially in severe CAP.
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Affiliation(s)
- Adamantia Liapikou
- Sotiria Chest Diseases Hospital, 3rd Respiratory Department, Mesogion 152, Athens, Greece.
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Korth-Bradley JM, McGovern PC, Salageanu J, Matschke K, Plotka A, Pawlak S. Tigecycline does not prolong corrected QT intervals in healthy subjects. Antimicrob Agents Chemother 2013; 57:1895-901. [PMID: 23403419 PMCID: PMC3623319 DOI: 10.1128/aac.01576-12] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Accepted: 01/31/2013] [Indexed: 11/20/2022] Open
Abstract
We evaluated the effect of tigecycline (50-mg and 200-mg doses) on corrected QT (QTc) intervals and assessed safety and tolerability in a randomized, placebo-controlled, four-period crossover study of 48 (44 male) healthy volunteers aged 22 to 53 years. Fed subjects received tigecycline (50 mg or 200 mg) or placebo in a blinded fashion or an open-label oral dose of moxifloxacin (400 mg) after 1 liter of intravenous fluid. Serial electrocardiograms were recorded before, and for 96 h after, dosing. Blood samples for tigecycline pharmacokinetics were collected after each recording. QTc intervals were corrected using Fridericia's correction (QTcF). Pharmacokinetic parameters were calculated using noncompartmental methods with potential relationships examined using linear mixed-effects modeling. Adverse events were recorded. The upper limits of the 90% confidence interval for the mean difference between both tigecycline doses and placebo for all time-matched QTcF interval changes from baseline were <5 ms. The tigecycline concentrations initially declined rapidly and then more slowly. In the group given 50 mg of tigecycline, the pharmacokinetic parameters and means were as follows: maximum concentration of drug in serum (C(max)), 432 ng/ml; area under the concentration-time curve from time zero extrapolated to infinity (AUC0-∞), 2,366 ng · h/ml; clearance (CL), 21.1 liters/h; volume of distribution at steady state (V(ss)), 610 liters; and terminal half-life (t(1/2)), 22.1 h. Proportional or similar values were found for the group given 200 mg of tigecycline. Linear mixed-effects modeling failed to show an effect on QTcF values by tigecycline concentrations (P = 0.755). Tigecycline does not prolong the QTc interval in healthy subjects. This study has been registered at ClinicalTrials.gov under registration no. NCT01287793.
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Affiliation(s)
| | | | | | | | - Anna Plotka
- Pfizer Inc., Collegeville, Pennsylvania, USA
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Randomized phase 2 trial to evaluate the clinical efficacy of two high-dosage tigecycline regimens versus imipenem-cilastatin for treatment of hospital-acquired pneumonia. Antimicrob Agents Chemother 2013; 57:1756-62. [PMID: 23357775 DOI: 10.1128/aac.01232-12] [Citation(s) in RCA: 175] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In a previous phase 3 study, the cure rates that occurred in patients with hospital-acquired pneumonia treated with tigecycline at the approved dose were lower than those seen with patients treated with imipenem and cilastatin (imipenem/cilastatin). We hypothesized that a higher dose of tigecycline is necessary in patients with hospital-acquired pneumonia. This phase 2 study compared the safety and efficacy of two higher doses of tigecycline with imipenem/cilastatin in subjects with hospital-acquired pneumonia. Subjects with hospital-acquired pneumonia were randomized to receive one of two doses of tigecycline (150 mg followed by 75 mg every 12 h or 200 mg followed by 100 mg every 12 h) or 1 g of imipenem/cilastatin every 8 h. Empirical adjunctive therapy was administered for initial coverage of methicillin-resistant Staphylococcus aureus and Pseudomonas aeruginosa infection, depending on the randomization regimen. Clinical response, defined as cure, failure of treatment, or indeterminate outcome, was assessed 10 to 21 days after the last day of therapy. In the clinically evaluable population, clinical cure with tigecycline 100 mg (17/20, 85.0%) was numerically higher than with tigecycline 75 mg (16/23, 69.6%) and imipenem/cilastatin (18/24, 75.0%). No new safety signals with the high-dose tigecycline were identified. A numerically higher clinical response was observed with the 100-mg dose of tigecycline. This supports our hypothesis that a higher area under the concentration-time curve over 24 h in the steady state divided by the MIC (AUC/MIC ratio) may be necessary to achieve clinical cure in patients with hospital-acquired pneumonia. Further studies are necessary. (The ClinicalTrials.gov identifier for this clinical trial is NCT00707239.).
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DeBellis HF, Jones MC, Kincaid SE. An update for community-acquired bacterial pneumonia pharmacotherapy: what's new and where does it fit? J Pharm Pract 2012; 25:569-75. [PMID: 23065389 DOI: 10.1177/0897190012460829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
In 2007, 1.2 million people in the United States were hospitalized with pneumonia, and more than 52 000 died from the disease. Community-acquired bacterial pneumonia (CABP) can be caused by a variety of organisms as a result of patient factors such as comorbidities, epidemiologic conditions, or the setting in which the infection was contracted. Treatment of CABP differs depending on the types of bacteria that are suspected. In the last several years, due to the concern regarding multidrug-resistant organisms (MDROs), 2 new antibiotics have been developed and approved for use in CABP. Ceftaroline fosamil (Teflaro) was approved by the US Food and Drug Administration (FDA) in October 2010 and tigecycline (Tygacil) in March 2009. In clinical trials, both agents have been shown to be efficacious and are generally well tolerated. Although these agents have received approval as therapy for CABP, it is the responsibility of physicians and pharmacists to prudently use these antimicrobials where they are truly needed. Until these agents show superiority over conventional therapy for selected patient populations, given the wide variety of pharmacotherapy that can prove efficacious for pneumonia, the new agents should be reserved for patients who have known risk factors for MDROs. Further studies are warranted for these agents in the setting of CABP.
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Ramirez JA, Cooper AC, Wiemken T, Gardiner D, Babinchak T. Switch therapy in hospitalized patients with community-acquired pneumonia: tigecycline vs. levofloxacin. BMC Infect Dis 2012; 12:159. [PMID: 22812672 PMCID: PMC3480883 DOI: 10.1186/1471-2334-12-159] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Accepted: 03/08/2012] [Indexed: 11/10/2022] Open
Abstract
Background Switch therapy is a management approach combining early discontinuation of intravenous (IV) antibiotics, switch to oral antibiotics, and early hospital discharge. This analysis compares switch therapy using tigecycline versus levofloxacin in hospitalized patients with community-acquired pneumonia (CAP). Methods A prospective, randomized, double-blind, Phase 3 clinical trial; patients were randomized to IV tigecycline (100 mg, then 50 mg q12h) or IV levofloxacin (500 mg q24h). Objective criteria were used to define time to switch therapy; patients were switched to oral levofloxacin after ≥6 IV doses if criteria met. Switch therapy outcomes were assessed within the clinically evaluable (CE) population. Results In the CE population, 138 patients were treated with IV tigecycline and 156 were treated with IV levofloxacin. The proportion of the population that met switch therapy criteria was 67.4% (93/138) for tigecycline and 66.7% (104/156) for levofloxacin. The proportion that actually switched to oral therapy was 89.9% (124/138) for tigecycline and 87.8% (137/156) for levofloxacin. Median time to actual switch therapy was 5.0 days each for tigecycline and levofloxacin. Clinical cure rates for patients who switched were 96.8% for tigecycline and 95.6% for levofloxacin. Corresponding cure rates for those that met switch criteria were 95.7% for tigecycline and 92.3% for levofloxacin. Conclusions Switch therapy outcomes in hospitalized patients with CAP receiving initial IV therapy with tigecycline are comparable to those of patients receiving initial IV therapy with levofloxacin. These data support the use of IV tigecycline in hospitalized patients with CAP when the switch therapy approach is considered. ClinicalTrials.gov Identifier NCT00081575
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Gupta D, Agarwal R, Aggarwal AN, Singh N, Mishra N, Khilnani GC, Samaria JK, Gaur SN, Jindal SK. Guidelines for diagnosis and management of community- and hospital-acquired pneumonia in adults: Joint ICS/NCCP(I) recommendations. Lung India 2012; 29:S27-62. [PMID: 23019384 PMCID: PMC3458782 DOI: 10.4103/0970-2113.99248] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Dheeraj Gupta
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Ritesh Agarwal
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Ashutosh Nath Aggarwal
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Navneet Singh
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Narayan Mishra
- Department of Pulmonary Medicine, Indian Chest Society, India
| | - G. C. Khilnani
- Department of Pulmonary Medicine, National College of Chest Physicians, India
| | - J. K. Samaria
- Department of Pulmonary Medicine, Indian Chest Society, India
| | - S. N. Gaur
- Department of Pulmonary Medicine, National College of Chest Physicians, India
| | - S. K. Jindal
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - for the Pneumonia Guidelines Working Group
- Pneumonia Guidelines Working Group Collaborators (43) A. K. Janmeja, Chandigarh; Abhishek Goyal, Chandigarh; Aditya Jindal, Chandigarh; Ajay Handa, Bangalore; Aloke G. Ghoshal, Kolkata; Ashish Bhalla, Chandigarh; Bharat Gopal, Delhi; D. Behera, Delhi; D. Dadhwal, Chandigarh; D. J. Christopher, Vellore; Deepak Talwar, Noida; Dhruva Chaudhry, Rohtak; Dipesh Maskey, Chandigarh; George D’Souza, Bangalore; Honey Sawhney, Chandigarh; Inderpal Singh, Chandigarh; Jai Kishan, Chandigarh; K. B. Gupta, Rohtak; Mandeep Garg, Chandigarh; Navneet Sharma, Chandigarh; Nirmal K. Jain, Jaipur; Nusrat Shafiq, Chandigarh; P. Sarat, Chandigarh; Pranab Baruwa, Guwahati; R. S. Bedi, Patiala; Rajendra Prasad, Etawa; Randeep Guleria, Delhi; S. K. Chhabra, Delhi; S. K. Sharma, Delhi; Sabir Mohammed, Bikaner; Sahajal Dhooria, Chandigarh; Samir Malhotra, Chandigarh; Sanjay Jain, Chandigarh; Subhash Varma, Chandigarh; Sunil Sharma, Shimla; Surender Kashyap, Karnal; Surya Kant, Lucknow; U. P. S. Sidhu, Ludhiana; V. Nagarjun Mataru, Chandigarh; Vikas Gautam, Chandigarh; Vikram K. Jain, Jaipur; Vishal Chopra, Patiala; Vishwanath Gella, Chandigarh
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Prasad P, Sun J, Danner RL, Natanson C. Excess deaths associated with tigecycline after approval based on noninferiority trials. Clin Infect Dis 2012; 54:1699-709. [PMID: 22467668 PMCID: PMC3404716 DOI: 10.1093/cid/cis270] [Citation(s) in RCA: 211] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Accepted: 11/29/2011] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND On the basis of noninferiority trials, tigecycline received Food and Drug Administration (FDA) approval in 2005. In 2010, the FDA warned in a safety communication that tigecycline was associated with an increased risk of death. METHODS PubMed, EMBASE, Scopus, and ClinicalTrials.gov were searched using the terms "tigecycline" and "randomized controlled trial (RCT)" through April 2011. Excess deaths and noncure rates for both approved and nonapproved indications were examined using meta-analysis. RESULTS Ten published and 3 unpublished studies met inclusion criteria (N = 7434). No significant heterogeneity was seen for mortality (I(2 )= 0%; P = .99) or noncure rates (I(2 )= 25%; P = .19). Across randomized controlled trials, tigecycline was associated with increased mortality (risk difference [RD], 0.7%; 95% confidence interval [CI], 0.1%-1.2%; P = .01) and noncure rates (RD, 2.9%; 95% CI, 0.6%-5.2%; P = .01). Effects were not isolated to type of infection or comparator antibiotic regimen, and the impact on survival remained significant when limited to trials of approved indications (I(2 )= 0%; RD, 0.6%; P = .04). A pooled analysis of the 5 trials completed by early 2005 before tigecycline was approved would have demonstrated a similar harmful effect of tigecycline on survival (I(2 )= 0%; RD, 0.7%; P = .06). CONCLUSIONS Pooling noninferiority studies to examine survival may help ensure the safety and efficacy of new antibiotics. The association of tigecycline with excess deaths and noncure includes indications for which it is approved and marketed. Tigecycline cannot be relied on in serious infections.
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Affiliation(s)
- Paritosh Prasad
- Critical Care Medicine Department, National Institutes of Health, Bethesda, Maryland, USA.
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Ahmed NH, Baba K, Clay C, Lekalakala R, Hoosen AA. In vitro activity of tigecycline against clinical isolates of carbapenem resistant Acinetobacter baumannii complex in Pretoria, South Africa. BMC Res Notes 2012; 5:215. [PMID: 22554305 PMCID: PMC3422175 DOI: 10.1186/1756-0500-5-215] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Accepted: 05/03/2012] [Indexed: 11/21/2022] Open
Abstract
Background The presence of multi-drug resistant Acinetobacter baumannii raises a big therapeutic challenge in our hospital. Tigecycline, a new glycylcycline with expanded broad spectrum of activity against multi-drug resistant organisms was recently licensed in South Africa. Aim The aim of this study was to evaluate the in vitro activity of tigecycline against carbapenem resistant A. baumannii complex. Methods Consecutive clinical isolates of carbapenem resistant A. baumannii complex were collected between February and July 2010. Species identification and susceptibility testing was performed by Vitek-2 colorimetric compact system with Advanced Expert System (AES). Strains were tested for carbapenemase production by the modified Hodge test, according to the Clinical and Laboratory Standards Institute (CLSI) guidelines. Results A total of 232 carbapenem resistant clinical isolates of A. baumannii complex were collected over the six months study period; 217 (93.5%) of these were modified Hodge test positive. All isolates were susceptible to colistin and 174 (78%) susceptible to amikacin whilst 20 (9%) were susceptible to ciprofloxacin. For tigecycline 169 (75.8%) were fully susceptible, 37 (16.6%) intermediately resistant and only 17 (7.6%) were fully resistant. None of the carbapenem resistant isolates were susceptible to ampicillin, amoxicillin/clavullanic acid, piperacillin/tazobactam, cefuroxime, cefuroxime axetil, cefoxitin, cefepime or nitrofurantoin. Conclusion All carbapenem resistant isolates were found to be fully susceptible to colistin; amikacin and tigecycline susceptibility was 78% and 76% respectively. Treatment options for infections due to carbapenem and multi-drug resistant A. baumannii organisms are limited and hence tigecycline and amikacin may be considered. The properties of tigecycline i.e. stability, safety, low toxicity, non cross-resistance with other antibiotics and its efficacy against multi-drug resistant A. baumannii isolates make it a good choice. However, ongoing monitoring of A. baumannii susceptibility to tigecycline is needed.
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Affiliation(s)
- Nahid H Ahmed
- Department of Medical Microbiology, Faculty of Health Sciences, University of Pretoria, Prinshof Campus, Pathology Building, 5 Bophelo Road, Private Bag X323, Code: 0007, Riviera, Pretoria 0084, South Africa.
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Patel T, Molloy A, Smith R, Balakrishnan I. Successful treatment of Leuconostoc bacteremia in a neutropenic patient with tigecycline. Infect Dis Rep 2012; 4:e31. [PMID: 24470945 PMCID: PMC3892628 DOI: 10.4081/idr.2012.e31] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 03/12/2012] [Accepted: 03/17/2012] [Indexed: 11/29/2022] Open
Abstract
Leuconostoc lactis is a recognised cause of infection in immunocompromised hosts. It is intrinsically resistant to multiple antibiotics and treatment options may be limited. We report a case of safe and effective use of tigecycline in the treatment of Leuconostoc catheter-related line sepsis in a neutropenic patient. To our knowledge, this is the first reported case of successful use of tigecycline for Leuconostoc bacteremia.
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Affiliation(s)
- Trupti Patel
- Department of Microbiology, Royal Free Hospital NHS Foundation Trust, London
| | - Aoife Molloy
- Department of Infectious Diseases, Ealing Hospital, Ealing Hospital NHS Trust, Southall, UK
| | - Robin Smith
- Department of Microbiology, Royal Free Hospital NHS Foundation Trust, London
| | - Indran Balakrishnan
- Department of Microbiology, Royal Free Hospital NHS Foundation Trust, London
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Vardakas KZ, Rafailidis PI, Falagas ME. Effectiveness and Safety of Tigecycline: Focus on Use for Approved Indications. Clin Infect Dis 2012; 54:1672-4. [DOI: 10.1093/cid/cis239] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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43
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Are Fluoroquinolones Superior Antibiotics for the Treatment of Community-Acquired Pneumonia? Curr Infect Dis Rep 2012; 14:317-29. [DOI: 10.1007/s11908-012-0251-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Woodhead M, Blasi F, Ewig S, Garau J, Huchon G, Ieven M, Ortqvist A, Schaberg T, Torres A, van der Heijden G, Read R, Verheij TJM. Guidelines for the management of adult lower respiratory tract infections--summary. Clin Microbiol Infect 2012; 17 Suppl 6:1-24. [PMID: 21951384 DOI: 10.1111/j.1469-0691.2011.03602.x] [Citation(s) in RCA: 195] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
This document is an update of Guidelines published in 2005 and now includes scientific publications through to May 2010. It provides evidence-based recommendations for the most common management questions occurring in routine clinical practice in the management of adult patients with LRTI. Topics include management outside hospital, management inside hospital (including community-acquired pneumonia (CAP), acute exacerbations of COPD (AECOPD), acute exacerbations of bronchiectasis) and prevention. The target audience for the Guideline is thus all those whose routine practice includes the management of adult LRTI.
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Affiliation(s)
- M Woodhead
- Department of Respiratory Medicine, Manchester Royal Infirmary, Oxford Road, Manchester, UK.
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Woodhead M, Blasi F, Ewig S, Garau J, Huchon G, Ieven M, Ortqvist A, Schaberg T, Torres A, van der Heijden G, Read R, Verheij TJM. Guidelines for the management of adult lower respiratory tract infections--full version. Clin Microbiol Infect 2011; 17 Suppl 6:E1-59. [PMID: 21951385 PMCID: PMC7128977 DOI: 10.1111/j.1469-0691.2011.03672.x] [Citation(s) in RCA: 592] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This document is an update of Guidelines published in 2005 and now includes scientific publications through to May 2010. It provides evidence-based recommendations for the most common management questions occurring in routine clinical practice in the management of adult patients with LRTI. Topics include management outside hospital, management inside hospital (including community-acquired pneumonia (CAP), acute exacerbations of COPD (AECOPD), acute exacerbations of bronchiectasis) and prevention. Background sections and graded evidence tables are also included. The target audience for the Guideline is thus all those whose routine practice includes the management of adult LRTI.
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Affiliation(s)
- M Woodhead
- Department of Respiratory Medicine, Manchester Royal Infirmary, Oxford Road, Manchester, UK.
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Clarification to the Systematic Review and Meta-Analysis Involving Tigecycline. Antimicrob Agents Chemother 2011; 55:4941. [DOI: 10.1128/aac.00512-11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Tasina E, Haidich AB, Kokkali S, Arvanitidou M. Efficacy and safety of tigecycline for the treatment of infectious diseases: a meta-analysis. THE LANCET. INFECTIOUS DISEASES 2011; 11:834-44. [PMID: 21784708 DOI: 10.1016/s1473-3099(11)70177-3] [Citation(s) in RCA: 186] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
BACKGROUND Multidrug resistance among bacteria increases the need for new antimicrobial drugs with high potency and stability. Tigecycline is one candidate drug, and a previous meta-analysis of only published randomised controlled trials suggested that it might as effective as comparator treatments; we did a meta-analysis to include new and unpublished trials to assess its efficacy for the treatment of adult patients with serious bacterial infection. METHODS We searched PubMed, Cochrane Central Register, and Embase up to March 30, 2011, to identify published studies, and we searched clinical trial registries to identify completed unpublished studies, the results of which were obtained through the manufacturer. Eligible studies were randomised trials assessing the clinical efficacy, safety, and eradication efficiency of tigecycline versus other antimicrobial agents for any bacterial infection. The primary outcome was treatment success in patients who received at least one dose of the study drug, had clinical evidence of disease, and had complete follow-up (the clinically assessable population). Meta-analysis was done with random-effects models because of heterogeneity across the trials. FINDINGS 14 randomised trials, comprising about 7400 patients, were included. Treatment success was lower with tigecycline than with control antibiotic agents, but the difference was not significant (odds ratio 0·87, 95% CI 0·74-1·02). Adverse events were more frequent in the tigecycline group than in the control groups (1·45, 1·11-1·88), with significantly more vomiting and nausea. All-cause mortality was higher in the tigecycline group than in the comparator groups, but the difference was not significant (1·28, 0·97-1·69). Eradication efficiency did not differ between tigecycline and control regimens, but the sample size for these comparisons was small. INTERPRETATION Tigecycline is not better than standard antimicrobial agents for the treatment of serious infections. Our findings show that assessment with unpublished studies is needed to make appropriate decisions about new agents. FUNDING None.
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Affiliation(s)
- Efthimia Tasina
- Department of Clinical Microbiology, Hippokration General Hospital, Thessaloniki, Greece
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Zuckerman JM, Qamar F, Bono BR. Review of macrolides (azithromycin, clarithromycin), ketolids (telithromycin) and glycylcyclines (tigecycline). Med Clin North Am 2011; 95:761-91, viii. [PMID: 21679791 DOI: 10.1016/j.mcna.2011.03.012] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The advanced macrolides, azithromycin and clarithromycin, and the ketolide, telithromycin, are structural analogs of erythromycin. They have several distinct advantages when compared with erythromycin, including enhanced spectrum of activity, more favorable pharmacokinetics and pharmacodynamics, once-daily administration, and improved tolerability. Clarithromycin and azithromycin are used extensively for the treatment of respiratory tract infections, sexually transmitted diseases, and Helicobacter pylori-associated peptic ulcer disease. Telithromycin is approved for the treatment of community-acquired pneumonia. Severe hepatotoxicity has been reported with the use of telithromycin.
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Affiliation(s)
- Jerry M Zuckerman
- Jefferson Medical College, 1025 Walnut Street, Philadelphia, PA 19107, USA.
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Yahav D, Lador A, Paul M, Leibovici L. Efficacy and safety of tigecycline: a systematic review and meta-analysis. J Antimicrob Chemother 2011; 66:1963-71. [PMID: 21685488 DOI: 10.1093/jac/dkr242] [Citation(s) in RCA: 196] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Tigecycline is a novel glycylcycline that exhibits broad-spectrum antibacterial activity. Recently, the US FDA issued a warning concerning increased mortality with tigecycline in randomized controlled trials (RCTs). METHODS We conducted a systematic review and meta-analysis of RCTs that compared tigecycline with any other antibiotic regimen for the treatment of any infection. A comprehensive search, without publication status or other restrictions, was conducted. The primary outcome was overall 30 day mortality. The secondary outcome included clinical and microbiological failure, superinfections and adverse events (AEs). The trials' risks of bias and their effects on results were assessed. Two reviewers independently extracted the data. Individual trials' relative risks (RRs) were pooled using a fixed effect meta-analysis. RESULTS Fifteen trials (7654 patients) were included. Overall mortality was higher with tigecycline compared with other regimens [RR 1.29, 95% confidence interval (CI) 1.02-1.64, without heterogeneity]. The type of infection assessed and the trials' reported risks of bias did not affect this result. Clinical failure was significantly higher with tigecycline (RR 1.16, 95% CI 1.06-1.27) and non-statistically significant higher rates of microbiological failure were demonstrated (RR 1.13, 95% CI 0.99-1.30). Development of septic shock was significantly more frequent with tigecycline (RR 7.01, 95% CI 1.27-38.66). Superinfections were significantly more common with tigecycline and so were AEs, including all AEs and AEs requiring discontinuation. CONCLUSIONS In the light of the increased mortality, probably explained by decreased clinical and microbiological efficacy, clinicians should avoid tigecycline monotherapy in the treatment of severe infections and reserve it as a last-resort drug.
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Affiliation(s)
- Dafna Yahav
- Department of Medicine E, Rabin Medical Center, Beilinson Hospital, Petah-Tiqva, Israel.
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Falcó V, Sánchez A, Pahissa A, Rello J. Emerging drugs for pneumococcal pneumonia. Expert Opin Emerg Drugs 2011; 16:459-77. [DOI: 10.1517/14728214.2011.576669] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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