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

[{"arm_notes": "", "treatment_id": 1088, "treatment_name": "Recombinant sars-cov-2 vaccine (cho cell)", "treatment_type": "Protein subunit", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]

[{"arm_notes": "", "treatment_id": null, "treatment_name": "two groups:Trial vaccine and placebo;", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "No information on dose", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}, {"arm_notes": "No information on dose", "treatment_id": 1088, "treatment_name": "Recombinant sars-cov-2 vaccine (cho cell)", "treatment_type": "Protein subunit", "pharmacological_treatment": "Vaccine"}]