[{"arm_notes": "nan", "treatment_id": 400, "treatment_name": "Dexamethasone", "treatment_type": "Corticosteroids", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "IFN beta-1a", "treatment_type": "Drug", "pharmacological_treatment": "Pharmacological treatment"}]

[{"arm_notes": "", "treatment_id": 671, "treatment_name": "Interferon beta 1a", "treatment_type": "Interferons", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]

[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "IFN beta-1a", "treatment_type": "Drug", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]