[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "exchange blood transfusion from normal donor", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Methylene Blue 5 MG/ML;plasma from convalescent patients with COVID-19", "treatment_type": "Drug;Biological", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "plasma from convalescent patients with COVID-19;Methylene Blue 5 MG/ML;exchange blood transfusion from normal donor", "treatment_type": "Biological;Drug;Biological", "pharmacological_treatment": "Pharmacological treatment"}]

[{"arm_notes": "", "treatment_id": 321, "treatment_name": "Convalescent anti-sars-cov-2 methylene blue treated (mbt) plasma", "treatment_type": "Convalescent plasma", "pharmacological_treatment": "Biological treatment"}, {"arm_notes": "", "treatment_id": 321, "treatment_name": "Convalescent anti-sars-cov-2 methylene blue treated (mbt) plasma", "treatment_type": "Convalescent plasma", "pharmacological_treatment": "Biological treatment"}, {"arm_notes": "", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]