[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "COVID-19 antibody test", "treatment_type": "Other", "pharmacological_treatment": "TODO"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "COVID-19 antibody test", "treatment_type": "Other", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "2;500 cancer patients", "treatment_id": 1923, "treatment_name": "Inactivated sars-cov-2 vaccine (vero cell)", "treatment_type": "Inactivated virus", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "2;500 healthy volunteers as control", "treatment_id": 1923, "treatment_name": "Inactivated sars-cov-2 vaccine (vero cell)", "treatment_type": "Inactivated virus", "pharmacological_treatment": "Vaccine"}]