[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Ad26.COV2.S", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Ad26.COV2.S", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "NVX-CoV2373", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "nan", "treatment_id": 24, "treatment_name": "Ad26.cov2.s", "treatment_type": "Non replicating viral vector", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "nan", "treatment_id": 918, "treatment_name": "Nvx-cov2373", "treatment_type": "Protein subunit", "pharmacological_treatment": "Vaccine"}]