[{"arm_notes": "", "treatment_id": null, "treatment_name": "NK cell group:NK cells were injected by intravenous drip once a day for 2 to 3 times in total; each dose was 4 10^7 pieces /kg body weight;100ml normal saline suspension;Control group:100ml normal saline intravenous drip;", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}, {"arm_notes": "", "treatment_id": null, "treatment_name": "NK cell group:NK cells were injected by intravenous drip once a day for 2 to 3 times in total; each dose was 4 10^7 pieces /kg body weight; 100ml normal saline suspension", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}, {"arm_notes": "", "treatment_id": null, "treatment_name": "Control group:100ml normal saline intravenous drip;", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "", "treatment_id": 867, "treatment_name": "Natural killer 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"}]