[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "DNA vaccine OC-007", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Placebo", "treatment_type": "Other", "pharmacological_treatment": "Placebo"}]

[{"arm_notes": "nan", "treatment_id": 2684, "treatment_name": "Oc-007", "treatment_type": "Dna based vaccine", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "nan", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]