[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Saline placebo", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "SARS-CoV-2 recombinant spike protein + Advax-SM adjuvant", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "25 \u00b5g SARS-CoV-2 recombinant spike protein+Advax-SM adjuvant 15 mg;1;IM;have received two doses of a COVID-19 vaccine of any type between 4 to 9 months before the screening visit", "treatment_id": 335, "treatment_name": "Covax-19", "treatment_type": "Protein subunit", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "1;IM;have received two doses of a COVID-19 vaccine of any type between 4 to 9 months before the screening visit", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]