[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Placebo;SARS-CoV-2 mRNA Vaccine", "treatment_type": "Biological;Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Placebo;SARS-CoV-2 mRNA Vaccine", "treatment_type": "Biological;Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "15 \u03bcg;1", "treatment_id": 1927, "treatment_name": "Arcov", "treatment_type": "Rna based vaccine", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "", "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": "nan", "treatment_id": null, "treatment_name": "SARS-CoV-2 mRNA Vaccine", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}]