[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Placebo;S-268019-b", "treatment_type": "Drug;Drug", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Placebo;S-268019-b", "treatment_type": "Drug;Drug", "pharmacological_treatment": "Pharmacological treatment"}]

[{"arm_notes": "2;Days1-29;IM then placebo IM Days225-253", "treatment_id": 2142, "treatment_name": "S-268019-b", "treatment_type": "Protein subunit", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "2;Days225-253;IM prior placebo IM Days1-29", "treatment_id": 2142, "treatment_name": "S-268019-b", "treatment_type": "Protein subunit", "pharmacological_treatment": "Vaccine"}]