Adjuvant treatment with a mammalian target of rapamycin inhibitor, sirolimus, and steroids improves outcomes in patients with severe H1N1 pneumonia and acute respiratory failure

Chun Hua Wang, Fu Tsai Chung, Shu Min Lin, Shu Yi Huang, Chun Liang Chou, Kang Yun Lee, Tzou Yien Lin, Han Pin Kuo

研究成果: 雜誌貢獻文章同行評審

73 引文 斯高帕斯(Scopus)

摘要

OBJECTIVES:: Severe H1N1 pneumonia with acute respiratory failure results in infiltration of lungs due to the presence of hyperactive immune cells. Rapamycin and corticosteroids inhibit this immune response by blocking the activation of T and B cells. DESIGN:: Open-label prospective randomized controlled trial. SETTING:: A tertiary medical center, Chang Gung Memorial Hospital, located in Taiwan. PATIENTS:: Between 2009 and 2011, of 4,012 H1N1-infected patients, 38 patients with severe H1N1 pneumonia and acute respiratory failure were enrolled. MEASUREMENTS AND MAIN RESULTS:: Thirty-eight patients with confirmed H1N1 pneumonia and on mechanical ventilatory support were randomized to receive adjuvant treatment of corticosteroids with an mTOR inhibitor, either with sirolimus (Rapamune 2 mg/d) (sirolimus group, n = 19) for 14 days or without sirolimus (nonsirolimus group, n = 19). The clinical values measured included PaO2/FIO2, Sequential Organ Failure Assessment score, duration of ventilatory support, and mortality. The baseline demography was similar between the two groups. After treatment, the PaO 2/FIO2 values on day 3 (167.5 [95% CI, 86.7-209.2 mm Hg], n = 19 vs 106.8 [95% CI, 73.0-140.7 mm Hg], n = 19; p = 0.025] and day 7 (241.6 [95% CI, 185.2-297.9 mm Hg], n = 19 vs 147.0 [95% CI, 100.7-193.7 mm Hg], n = 17; p = 0.008) in the sirolimus group were significantly better over the nonsirolimus group. Similarly, the Sequential Organ Failure Assessment score on day 3 (4.3 [95% CI, 3.1-5.5]; p = 0.029) and day 7 (5.9 [95% CI, 4.8-6.9], n = 19 and 6.2 [95% CI, 4.7-7.8], n = 17, respectively) significantly improved in the sirolimus group. The liberation from a mechanical ventilator at 3 months was also better in the sirolimus combined with corticosteroids treatment. Similarly, the duration of ventilator use was significantly shorter in the sirolimus group (median, 7 vs 15 d; p = 0.03 by log-rank test). In the sirolimus combined with corticosteroids treatment group, a rapid clearance of virus also occurred after 7 days of treatment. CONCLUSIONS:: In patients with severe H1N1 pneumonia, early adjuvant treatment with corticosteroids and an mTOR inhibitor was associated with improvement in outcomes, such as hypoxia, multiple organ dysfunction, virus clearance, and shortened liberation of ventilator and ventilator days.
原文英語
頁(從 - 到)313-321
頁數9
期刊Critical Care Medicine
42
發行號2
DOIs
出版狀態已發佈 - 二月 2014
對外發佈

Keywords

  • H1N1
  • Outcomes
  • Rapamycin
  • Respiratory Failure
  • Virus Clearance
  • Virus Pneumonia

ASJC Scopus subject areas

  • 重症監護和重症監護醫學
  • 醫藥 (全部)

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