[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "PRIME-2-CoV_Beta", "treatment_type": "Drug", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "PRIME-2-CoV_Beta", "treatment_type": "Drug", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "PRIME-2-CoV_Beta", "treatment_type": "Drug", "pharmacological_treatment": "Pharmacological treatment"}]

[{"arm_notes": "Cohort A: Pre-vaccinated", "treatment_id": 2483, "treatment_name": "Prime-2-cov_beta", "treatment_type": "Protein subunit", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "Cohort A: SARS-CoV-2 Vaccine-na\u00efve", "treatment_id": 2483, "treatment_name": "Prime-2-cov_beta", "treatment_type": "Protein subunit", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "Cohort B: 2 Pre-vaccinated elderly", "treatment_id": 2483, "treatment_name": "Prime-2-cov_beta", "treatment_type": "Protein subunit", "pharmacological_treatment": "Vaccine"}]