Since december 2019, acute respiratory disease due to 2019 novel coronavirus (2019-nCoV) emerged in Wuhan city and rapidly spread throughout China. There is no confirmed antivirus therapy for 2019-nCoV infection. Natural killer (NK) cells are innate lymphocytes that may serve as useful effectors against danger infection. The purpose of this clinical investigation is to evaluate the safety and efficiency of NK Cells in combination with standard therapy for pneumonia patients infected with 2019-nCoV.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
2
twice a week of NK cells (0.1-2\*10E7 cells/kg body weight)
The First Affiliated Hospital of Xinxiang Medical University
Xinxiang, Henan, China
Improvement of clinical symptoms including duration of fever
Evaluation of pneumonia improvement
Time frame: Measured from day 0 through day 28
Improvement of clinical symptoms including respiratory frequency
Evaluation of pneumonia improvement
Time frame: Measured from day 0 through day 28
Number of participants with treatment-related adverse events evaluated with CTCAE,version 4.0
Safety evaluation
Time frame: Measured from day 0 through day 28
Time of virus nucleic acid test negative
Marker for 2019-nCoV
Time frame: Measured from day 0 through day 28
CD4+ and CD8+ T cell count
Marker of immunological function
Time frame: Measured from day 0 through day 28
Rate of mortality within 28-days
Marker for efficacy of treatment
Time frame: Day 28
Size of lesion area by thoracic imaging
Recovery of lung injury
Time frame: Measured from day 0 through day 28
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