[{"arm_notes": "", "treatment_id": null, "treatment_name": "Experimental group:Inoculate the test vaccine on day 0 and 14;Control group:Placebo control vaccine was administered on day 0 and 14;", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}, {"arm_notes": "", "treatment_id": null, "treatment_name": "Experimental group:Inoculate the test vaccine on day 0 and 14", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}, {"arm_notes": "", "treatment_id": null, "treatment_name": "Control group:Placebo control vaccine was administered on day 0 and 14;", "treatment_type": "Placebo", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "2;days0-14;nasal", "treatment_id": 394, "treatment_name": "Delns1-2019-ncov-rbd-opt1", "treatment_type": "Replicating viral vector", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]