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[{"arm_notes": "", "treatment_id": 671, "treatment_name": "Interferon beta 1a", "treatment_type": "Interferons", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "", "treatment_id": 965, "treatment_name": "Peginterferon beta-1a", "treatment_type": "Interferons", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]