[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Adsorbed COVID-19 (inactivated) Vaccine", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Adsorbed COVID-19 (inactivated) Vaccine", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}, {"arm_notes": "nan", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]

[{"arm_notes": "2", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}, {"arm_notes": "2", "treatment_id": 327, "treatment_name": "Coronavac", "treatment_type": "Inactivated virus", "pharmacological_treatment": "Vaccine"}]