[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Intramuscular injection", "treatment_type": "Drug", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Intramuscular vaccine", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "2", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}, {"arm_notes": "2", "treatment_id": 328, "treatment_name": "Coronavirus-like particle covid-19", "treatment_type": "Virus-like particle", "pharmacological_treatment": "Vaccine"}]