COVID 19 infected patients will receive one dose daily of Aerosolized 13 cis retinoic acid in gradual doses increases froms 0.2 mg/kg/day to 4 mg/kg/day as inhaled 13 cis retinoic acid therapy for 14 days

COVID 19 infected patients will receive one dose daily of Aerosolized All trans retinoic acid in gradual doses increases froms 0.2 mg/kg/day to 4 mg/kg/day as inhaled All trans retinoic acid therapy for 14 days

4 Placebo tablets twice daily by mouth for 2 weeks

COVID -19

The infected patients will receive Aerosolized 13 cis retinoic acid in gradual in one dose increases froms 0.2 mg/kg/day to 4 mg/kg/day as inhaled 13 cis retinoic acid therapy for 14 days

Aerosolized 13 cis retinoic acid

The infected patients will receive Aerosolized All trans retinoic acid in gradual one dose increases froms 0.2 mg/kg/day to 4 mg/kg/day as inhaled all trans retinoic acid therapy for 14 days

Aerosolized All trans retinoic acid

Placebo is a pill or tablet that does not contain any study drug.

Placebo

Combination With Inhibitor of Neutrophil Elastase (All-trans Retinoic Acid ) and Isotretinoin May Enhances Neutralizing Antibodies in COVID -19 Infected Patients Better Than COVID-19 Inactivated Vaccines

Proportion of lung injury score decreased or increased after treatment

Serum levels of CRP, ESR ,IL-1,IL-6,TNF and Type I interferon

less than 250 ng/mL, or less than 0.4 mcg/mL of blood sample

To determine the immune correlates of viral clearance (Antibody Titres sufficient for viral clearance and neutralizing ) against future exposure to SARS-CoV-2

Number of CD4 HLA-DR+ and CD38+, CD8 lymphocytes

Kidney failure, hypersensitivity with cutaneous or hemodynamic manifestations, aseptic meningitis, hemolytic anemia, leuko-neutropenia, transfusion related acute lung injury (TRALI)

peritonitis/protease

Combination With Inhibitor of Neutrophil Elastase (All-trans Retinoic Acid ) and Isotretinoin May Enhances Neutralizing Antibodies in COVID -19 Infected Patients Better Than COVID-19 Inactivated Vaccines

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