[{"arm_notes": "", "treatment_id": null, "treatment_name": "Experimental group:Iv injection of Wharton's Jelly mesenchymal stem cells (1\u00d710^6/kg); cell suspension volume: 40ml;Control group:Iv 40ml saline;", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}, {"arm_notes": "", "treatment_id": null, "treatment_name": "Experimental group:Iv injection of Wharton's Jelly mesenchymal stem cells (1\u00d710^6/kg)", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}, {"arm_notes": "", "treatment_id": null, "treatment_name": "cell suspension volume: 40ml", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}, {"arm_notes": "", "treatment_id": null, "treatment_name": "Control group:Iv 40ml saline;", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "", "treatment_id": 787, "treatment_name": "Mesenchymal stem cells", "treatment_type": "Advanced therapy medicinal products (atmp)", "pharmacological_treatment": "Biological treatment"}, {"arm_notes": "", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]