Virus susceptibility and clinical effectiveness of anti-influenza drugs during the 2010–2011 influenza season in Russia
Background: Antiviral drugs are critical adjuncts to influenza vaccination. This study determined the in vitro susceptibilities of influenza A and B viruses isolated in the 2010–2011 season in Russia to the neuraminidase inhibitor oseltamivir and the hemagglutinin fusion inhibitor umifenovir and cli...
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| Format: | Article |
| Language: | English |
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Elsevier
2016-02-01
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| Series: | International Journal of Infectious Diseases |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1201971216000023 |
| _version_ | 1819043219165413376 |
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| author | I.A. Leneva E.I. Burtseva S.B. Yatsyshina I.T. Fedyakina E.S. Kirillova E.P. Selkova E. Osipova V.V. Maleev |
| author_facet | I.A. Leneva E.I. Burtseva S.B. Yatsyshina I.T. Fedyakina E.S. Kirillova E.P. Selkova E. Osipova V.V. Maleev |
| author_sort | I.A. Leneva |
| collection | DOAJ |
| description | Background: Antiviral drugs are critical adjuncts to influenza vaccination. This study determined the in vitro susceptibilities of influenza A and B viruses isolated in the 2010–2011 season in Russia to the neuraminidase inhibitor oseltamivir and the hemagglutinin fusion inhibitor umifenovir and clinical efficacy of this antiviral drugs in this season.
Methods: The antiviral potency of these drugs against A(H1N1)pdm09 virus in mice was assessed. Importantly, the clinical effectiveness of oseltamivir and umifenovir was evaluated in a retrospective study conducted in 26 regions of Russia.
Results: All tested viruses (n = 36) were susceptible to oseltamivir and umifenovir in vitro. Oseltamivir (10 mg/kg/day) and umifenovir (60 mg/kg/day) significantly increased the survival of mice challenged with A/California/04/2009 (H1N1)pdm09 virus (p < 0.05). Influenza infection was laboratory-confirmed in 442 patients among 1462 patients hospitalized with acute respiratory infections. The treatment of influenza-infected patients within 48 h of symptom onset with oseltamivir and umifenovir was associated with a significant decrease in the duration of illness (2–3 days) and symptoms (p < 0.001). Pneumonia was observed in none of the patients treated with oseltamivir and in 0.3% of the patients treated with umifenovir, compared to 23.7% of patients who did not receive antiviral therapy (p < 0.001).
Conclusions: This study provided experimental and clinical evidence of the efficacy of oseltamivir and umifenovir against influenza viruses, representatives of which have continued to circulate in post-pandemic seasons. |
| first_indexed | 2024-12-21T09:53:18Z |
| format | Article |
| id | doaj.art-24a559b9817b45bf8b5fec355687eda3 |
| institution | Directory Open Access Journal |
| issn | 1201-9712 1878-3511 |
| language | English |
| last_indexed | 2024-12-21T09:53:18Z |
| publishDate | 2016-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Infectious Diseases |
| spelling | doaj.art-24a559b9817b45bf8b5fec355687eda32022-12-21T19:08:08ZengElsevierInternational Journal of Infectious Diseases1201-97121878-35112016-02-0143C778410.1016/j.ijid.2016.01.001Virus susceptibility and clinical effectiveness of anti-influenza drugs during the 2010–2011 influenza season in RussiaI.A. Leneva0E.I. Burtseva1S.B. Yatsyshina2I.T. Fedyakina3E.S. Kirillova4E.P. Selkova5E. Osipova6V.V. Maleev7I. Mechnikov Research Institute of Vaccines and Sera of the Russian Academy of Science, 5a Kazenny per., Moscow 105064, RussiaD.I. Ivanovsky Institute of Virology, Ministry of Health of the Russian Federation, Moscow, RussiaCentral Research Institute for Epidemiology, Rospotrebnadzor of the Russian Federation, Moscow, RussiaD.I. Ivanovsky Institute of Virology, Ministry of Health of the Russian Federation, Moscow, RussiaD.I. Ivanovsky Institute of Virology, Ministry of Health of the Russian Federation, Moscow, RussiaGabrichevsky Moscow Research Institute for Epidemiology and Microbiology Rospotrebnadzor, Moscow, RussiaI. Mechnikov Research Institute of Vaccines and Sera of the Russian Academy of Science, 5a Kazenny per., Moscow 105064, RussiaCentral Research Institute for Epidemiology, Rospotrebnadzor of the Russian Federation, Moscow, RussiaBackground: Antiviral drugs are critical adjuncts to influenza vaccination. This study determined the in vitro susceptibilities of influenza A and B viruses isolated in the 2010–2011 season in Russia to the neuraminidase inhibitor oseltamivir and the hemagglutinin fusion inhibitor umifenovir and clinical efficacy of this antiviral drugs in this season. Methods: The antiviral potency of these drugs against A(H1N1)pdm09 virus in mice was assessed. Importantly, the clinical effectiveness of oseltamivir and umifenovir was evaluated in a retrospective study conducted in 26 regions of Russia. Results: All tested viruses (n = 36) were susceptible to oseltamivir and umifenovir in vitro. Oseltamivir (10 mg/kg/day) and umifenovir (60 mg/kg/day) significantly increased the survival of mice challenged with A/California/04/2009 (H1N1)pdm09 virus (p < 0.05). Influenza infection was laboratory-confirmed in 442 patients among 1462 patients hospitalized with acute respiratory infections. The treatment of influenza-infected patients within 48 h of symptom onset with oseltamivir and umifenovir was associated with a significant decrease in the duration of illness (2–3 days) and symptoms (p < 0.001). Pneumonia was observed in none of the patients treated with oseltamivir and in 0.3% of the patients treated with umifenovir, compared to 23.7% of patients who did not receive antiviral therapy (p < 0.001). Conclusions: This study provided experimental and clinical evidence of the efficacy of oseltamivir and umifenovir against influenza viruses, representatives of which have continued to circulate in post-pandemic seasons.http://www.sciencedirect.com/science/article/pii/S1201971216000023UmifenovirOseltamivirSusceptibility to antiviralsObservational studyInfluenza |
| spellingShingle | I.A. Leneva E.I. Burtseva S.B. Yatsyshina I.T. Fedyakina E.S. Kirillova E.P. Selkova E. Osipova V.V. Maleev Virus susceptibility and clinical effectiveness of anti-influenza drugs during the 2010–2011 influenza season in Russia International Journal of Infectious Diseases Umifenovir Oseltamivir Susceptibility to antivirals Observational study Influenza |
| title | Virus susceptibility and clinical effectiveness of anti-influenza drugs during the 2010–2011 influenza season in Russia |
| title_full | Virus susceptibility and clinical effectiveness of anti-influenza drugs during the 2010–2011 influenza season in Russia |
| title_fullStr | Virus susceptibility and clinical effectiveness of anti-influenza drugs during the 2010–2011 influenza season in Russia |
| title_full_unstemmed | Virus susceptibility and clinical effectiveness of anti-influenza drugs during the 2010–2011 influenza season in Russia |
| title_short | Virus susceptibility and clinical effectiveness of anti-influenza drugs during the 2010–2011 influenza season in Russia |
| title_sort | virus susceptibility and clinical effectiveness of anti influenza drugs during the 2010 2011 influenza season in russia |
| topic | Umifenovir Oseltamivir Susceptibility to antivirals Observational study Influenza |
| url | http://www.sciencedirect.com/science/article/pii/S1201971216000023 |
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