[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "COVID19 vaccine", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Saline", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "1", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}, {"arm_notes": "1", "treatment_id": 335, "treatment_name": "Covax-19", "treatment_type": "Protein subunit", "pharmacological_treatment": "Vaccine"}]