[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Lyophilized COVID-19 mRNA Vaccine", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Sodium chloride", "treatment_type": "Drug", "pharmacological_treatment": "Pharmacological treatment"}]

[{"arm_notes": "nan", "treatment_id": 2450, "treatment_name": "Rh109", "treatment_type": "Rna based vaccine", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "nan", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]