Clinical effectiveness of neuraminidase inhibitors—oseltamivir, zanamivir, laninamivir, and peramivir—for treatment of influenza A(H3N2) and A(H1N1)pdm09 infection: an observational study in the 2010–2011 influenza season in Japan

Abstract The clinical effectiveness of the newly released neuraminidase inhibitors (NAIs) laninamivir and peramivir has not been sufficiently evaluated in influenza-infected patients in clinical and practical settings. In this study, we analyzed the clinical data of 211 patients infected with influe...

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Veröffentlicht in:Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy 2012, Vol.18 (6), p.858-864
Hauptverfasser: Shobugawa, Yugo, Saito, Reiko, Dapat, Clyde, Dapat, Isolde Caperig, Kondo, Hiroki, Saito, Kousuke, Sato, Isamu, Kawashima, Takashi, Suzuki, Yasushi, Suzuki, Hiroshi
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container_title Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy
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creator Shobugawa, Yugo
Saito, Reiko
Dapat, Clyde
Dapat, Isolde Caperig
Kondo, Hiroki
Saito, Kousuke
Sato, Isamu
Kawashima, Takashi
Suzuki, Yasushi
Suzuki, Hiroshi
description Abstract The clinical effectiveness of the newly released neuraminidase inhibitors (NAIs) laninamivir and peramivir has not been sufficiently evaluated in influenza-infected patients in clinical and practical settings. In this study, we analyzed the clinical data of 211 patients infected with influenza A virus subtype H3N2 (A(H3N2)) and 45 patients infected with influenza A virus subtype H1N1pdm (A(H1N1)pdm09) who received the NAIs oseltamivir, zanamivir, laninamivir, or peramivir during the 2010-2011 influenza season. The duration of fever from the first dose of the NAI to fever alleviation to
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In this study, we analyzed the clinical data of 211 patients infected with influenza A virus subtype H3N2 (A(H3N2)) and 45 patients infected with influenza A virus subtype H1N1pdm (A(H1N1)pdm09) who received the NAIs oseltamivir, zanamivir, laninamivir, or peramivir during the 2010-2011 influenza season. The duration of fever from the first dose of the NAI to fever alleviation to &lt;37.5 °C was evaluated as an indicator of the clinical effectiveness of the NAIs in the influenza-infected patients. For the A(H3N2)-infected patients, Kaplan–Meier analysis showed the peramivir treatment group had the fastest time of fever alleviation to &lt;37.5 °C (median 17.0 h, 95 % confidence interval [CI] 7.2–26.8 h) of the four treatment groups. No significant difference was found in the time to fever alleviation among the other antivirals, oseltamivir, zanamivir, and laninamivir. Results of multivariate analysis, using a Cox proportional-hazards model (hazard ratio 3.321) adjusted for the factors age, sex, body weight, vaccination status, time from onset to the clinic visit, and body temperature showed significantly faster fever alleviation in the peramivir treatment group compared with the oseltamivir treatment group. For the A(H1N1)pdm09-infected patients, only the oseltamivir and zanamivir treatment groups were compared, and no significant difference in time to alleviation of fever was observed between the two groups. Based on a cycling probe real-time polymerase chain reaction (PCR) assay, none of the A(H1N1)pdm09 strains in this study had the H275Y mutation conferring oseltamivir resistance. 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In this study, we analyzed the clinical data of 211 patients infected with influenza A virus subtype H3N2 (A(H3N2)) and 45 patients infected with influenza A virus subtype H1N1pdm (A(H1N1)pdm09) who received the NAIs oseltamivir, zanamivir, laninamivir, or peramivir during the 2010-2011 influenza season. The duration of fever from the first dose of the NAI to fever alleviation to &lt;37.5 °C was evaluated as an indicator of the clinical effectiveness of the NAIs in the influenza-infected patients. For the A(H3N2)-infected patients, Kaplan–Meier analysis showed the peramivir treatment group had the fastest time of fever alleviation to &lt;37.5 °C (median 17.0 h, 95 % confidence interval [CI] 7.2–26.8 h) of the four treatment groups. No significant difference was found in the time to fever alleviation among the other antivirals, oseltamivir, zanamivir, and laninamivir. Results of multivariate analysis, using a Cox proportional-hazards model (hazard ratio 3.321) adjusted for the factors age, sex, body weight, vaccination status, time from onset to the clinic visit, and body temperature showed significantly faster fever alleviation in the peramivir treatment group compared with the oseltamivir treatment group. For the A(H1N1)pdm09-infected patients, only the oseltamivir and zanamivir treatment groups were compared, and no significant difference in time to alleviation of fever was observed between the two groups. Based on a cycling probe real-time polymerase chain reaction (PCR) assay, none of the A(H1N1)pdm09 strains in this study had the H275Y mutation conferring oseltamivir resistance. 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Public Health</subject><subject>Neuraminidase - antagonists &amp; inhibitors</subject><subject>Neuraminidase inhibitors</subject><subject>Observational study</subject><subject>Original Article</subject><subject>Oseltamivir - therapeutic use</subject><subject>Treatment Outcome</subject><subject>Virology</subject><subject>Zanamivir - therapeutic use</subject><issn>1341-321X</issn><issn>1437-7780</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9ks1u1TAQhSMEoqXwAGyQl61EwOP8OAEJqboCCqrKApDYWY4zoS6JffEkV2pXfQd4wq55CBxyWxCLrjzjOd_YmjNJ8hj4M-BcPifgUJQpB5HyXFQp3El2Ic9kKmXF78Y4yyHNBHzZSR4QnXEOsqiq-8mOEGWe84rvJr9WvXXW6J5h16EZ7QYdEjHfMYdT0EOstpqQWXdqGzv6QFeXPz1hP8baxoan7EK767DXzt4k2rVsjWFJI9T5wMaAehzQjfMD1nX9hO5Cs8P9o-xEHPxBYgwncLBuB17PkvlT3r2INeYbwrDRcx4_TOPUnkcFG0-RCQ786vJHPOCfvoSavJs17_Vau4fJvU73hI-2517y-c3rT6uj9PjD23erw-PUFJKPqakL3bRlDVWDPAdRm1wWpS4yUXOjq3iTAZSFKLHMauSVbKTGkndgjNR1KbO9ZH_puw7--4Q0qsGSwT6OB_1ECoTM8kJIXkcpLFITPFHATq2DHXQ4V8DVbLJaTFbRZDWbrCAyT7btp2bA9oa4djUKxCKgWHJfMagzP4U4M7q168sFwjiZjY0QGYvOYGtD9EC13t5Kv_qPNtvF-obnSH_fVxQZ9XFezXkz4yi4AKiy37rQ3uk</recordid><startdate>2012</startdate><enddate>2012</enddate><creator>Shobugawa, Yugo</creator><creator>Saito, Reiko</creator><creator>Dapat, Clyde</creator><creator>Dapat, Isolde Caperig</creator><creator>Kondo, Hiroki</creator><creator>Saito, Kousuke</creator><creator>Sato, Isamu</creator><creator>Kawashima, Takashi</creator><creator>Suzuki, Yasushi</creator><creator>Suzuki, Hiroshi</creator><general>Elsevier Ltd</general><general>Springer Japan</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>2012</creationdate><title>Clinical effectiveness of neuraminidase inhibitors—oseltamivir, zanamivir, laninamivir, and peramivir—for treatment of influenza A(H3N2) and A(H1N1)pdm09 infection: an observational study in the 2010–2011 influenza season in Japan</title><author>Shobugawa, Yugo ; 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In this study, we analyzed the clinical data of 211 patients infected with influenza A virus subtype H3N2 (A(H3N2)) and 45 patients infected with influenza A virus subtype H1N1pdm (A(H1N1)pdm09) who received the NAIs oseltamivir, zanamivir, laninamivir, or peramivir during the 2010-2011 influenza season. The duration of fever from the first dose of the NAI to fever alleviation to &lt;37.5 °C was evaluated as an indicator of the clinical effectiveness of the NAIs in the influenza-infected patients. For the A(H3N2)-infected patients, Kaplan–Meier analysis showed the peramivir treatment group had the fastest time of fever alleviation to &lt;37.5 °C (median 17.0 h, 95 % confidence interval [CI] 7.2–26.8 h) of the four treatment groups. No significant difference was found in the time to fever alleviation among the other antivirals, oseltamivir, zanamivir, and laninamivir. Results of multivariate analysis, using a Cox proportional-hazards model (hazard ratio 3.321) adjusted for the factors age, sex, body weight, vaccination status, time from onset to the clinic visit, and body temperature showed significantly faster fever alleviation in the peramivir treatment group compared with the oseltamivir treatment group. For the A(H1N1)pdm09-infected patients, only the oseltamivir and zanamivir treatment groups were compared, and no significant difference in time to alleviation of fever was observed between the two groups. Based on a cycling probe real-time polymerase chain reaction (PCR) assay, none of the A(H1N1)pdm09 strains in this study had the H275Y mutation conferring oseltamivir resistance. Further evaluation of the clinical effectiveness of the newly released NAIs for influenza-infected patients, including those infected with A(H1N1)pdm09, is needed.</abstract><cop>Japan</cop><pub>Elsevier Ltd</pub><pmid>22644080</pmid><doi>10.1007/s10156-012-0428-1</doi><tpages>7</tpages></addata></record>
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subjects Antiviral Agents - therapeutic use
Child
Child, Preschool
Clinical effectiveness
Cyclopentanes - therapeutic use
Disease Outbreaks
Enzyme Inhibitors - therapeutic use
Female
Fever alleviation
Guanidines - therapeutic use
Hematology, Oncology and Palliative Medicine
Humans
Infectious Diseases
Influenza A Virus, H1N1 Subtype - isolation & purification
Influenza A Virus, H3N2 Subtype - isolation & purification
Influenza virus
Influenza, Human - drug therapy
Influenza, Human - epidemiology
Influenza, Human - virology
Japan - epidemiology
Male
Medical Microbiology
Medicine
Medicine & Public Health
Neuraminidase - antagonists & inhibitors
Neuraminidase inhibitors
Observational study
Original Article
Oseltamivir - therapeutic use
Treatment Outcome
Virology
Zanamivir - therapeutic use
title Clinical effectiveness of neuraminidase inhibitors—oseltamivir, zanamivir, laninamivir, and peramivir—for treatment of influenza A(H3N2) and A(H1N1)pdm09 infection: an observational study in the 2010–2011 influenza season in Japan
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