[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Lenalidomide as a 5 mg capsule PO daily, days 1, 3, and 5.", "treatment_type": "Drug", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]

[{"arm_notes": "", "treatment_id": 725, "treatment_name": "Lenalidomide", "treatment_type": "Immunosuppressants", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]