[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Injection of secretome - mesenchymal stem cell;Standard treatment of Covid-19", "treatment_type": "Biological;Drug", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Placebo;Standard treatment of Covid-19", "treatment_type": "Drug;Other", "pharmacological_treatment": "Pharmacological treatment"}]

[{"arm_notes": "", "treatment_id": 1176, "treatment_name": "Secretome-mscs", "treatment_type": "Advanced therapy medicinal products (atmp)", "pharmacological_treatment": "Biological treatment"}, {"arm_notes": "", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]