[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Ad26COVS1;ChAdOx1 SARS2 Vaccine", "treatment_type": "Drug;Drug", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "BNT162B2;mRNA-1273", "treatment_type": "Drug;Drug", "pharmacological_treatment": "Pharmacological treatment"}]

[{"arm_notes": "homologous", "treatment_id": 1431, "treatment_name": "Bnt162b2+mrna-1273", "treatment_type": "Rna based vaccine", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "heterologous", "treatment_id": 2442, "treatment_name": "Ad26covs1+chadox1 sars2", "treatment_type": "Non replicating viral vector", "pharmacological_treatment": "Vaccine"}]

[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "heterologous 3rd vaccination (Ad26COVS1 or ChAdOx1-S)", "treatment_type": "Drug", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "homologous 3rd vaccination (BNT162b2 or mRNA-1273)", "treatment_type": "Drug", "pharmacological_treatment": "Pharmacological treatment"}]

[{"arm_notes": "Homologous vaccination", "treatment_id": 222, "treatment_name": "Bnt162b2", "treatment_type": "Rna based vaccine", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "Heterologous vaccination", "treatment_id": 161, "treatment_name": "Chadox1 ncov-19", "treatment_type": "Non replicating viral vector", "pharmacological_treatment": "Vaccine"}]