[{"arm_notes": "", "treatment_id": null, "treatment_name": "Experimental group :Oral leflunomide;Control group:Oral placebo;", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}, {"arm_notes": "", "treatment_id": null, "treatment_name": "Experimental group :Oral leflunomide", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}, {"arm_notes": "", "treatment_id": null, "treatment_name": "Control group:Oral placebo;", "treatment_type": "Placebo", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "", "treatment_id": 724, "treatment_name": "Leflunomide", "treatment_type": "Other targeted therapies", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]