[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "COVID-19 convalescent plasma", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "COVID-19 convalescent plasma", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "at admission after confirmation of eligibility", "treatment_id": 322, "treatment_name": "Convalescent plasma", "treatment_type": "Convalescent plasma", "pharmacological_treatment": "Biological treatment"}, {"arm_notes": "only if worsening of respiratory function or persistence of COVID symptoms for >7 days after enrolment", "treatment_id": 322, "treatment_name": "Convalescent plasma", "treatment_type": "Convalescent plasma", "pharmacological_treatment": "Biological treatment"}]