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A randomized clinical trial evaluating the immunomodulatory effect of convalescent plasma on COVID-19-related cytokine storm

Emergency Medicine Department, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. msafdaryan@gmail.com. Pediatric Congenital Hematologic Disorders Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran. Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran. Radiology Department, Abadan University of Medical Sciences, Abadan, Iran. Infectious Diseases Department, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Thalassemia and Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. parastoomoradi40@yahoo.com. Blood Transfusion Organization, Ahvaz, Khuzestan, Iran. Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Department of Emergency Medicine, Imam Khomeini General Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Thalassemia and Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Department of Laboratory Sciences, Allied Health Sciences School, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Department of Internal Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Department of Microbiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz, Iran. Golestan Hospital Clinical Research Development Unit, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Internal and emergency medicine. 2021;:1-11
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Abstract
Evaluating the effect of convalescent plasma (CP) on some cytokine storm indices in severe COVID-19 patients. Totally, 62 patients were randomly assigned into two groups for this clinical trial. Patients in the intervention group received one unit (500 mL) plasma on the admission day plus standard drugs while the controls merely received standard treatments. Eventually, primary and secondary outcomes were evaluated. In the CP group, compared with controls, the mean levels of lymphocytes and IL-10 significantly increased while the levels of IL-6, TNF-α, and IFN-γ decreased (p < 0.05). The length of in-hospital stay, and mortality rate did not significantly reduce in the CP group compared with controls (p > 0.05) while WHO severity scores remarkably improved (p = 0.01), despite the higher frequency of underlying diseases among the CP group (66.7%) vs. controls (33.3%). Although CP has a remarkable immunomodulatory and antiviral potential to improve the cytokine storm and disease severity in COVID-19 patients, it did not considerably affect the mortality rate.
Study details
Language : eng
Credits : Bibliographic data from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine