[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Vaccination once with Janssen vaccine (only priming)", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Vaccination with Janssen vaccine followed with Janssen vaccine (homologous boosting).", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Vaccination with Janssen vaccine followed with Moderna vaccine (heterologous boosting).", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Vaccination with Janssen vaccine followed with Pfizer vaccine (heterologous boosting).", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "1; priming", "treatment_id": 24, "treatment_name": "Ad26.cov2.s", "treatment_type": "Non replicating viral vector", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "2;days0-84;homologous boosting", "treatment_id": 24, "treatment_name": "Ad26.cov2.s", "treatment_type": "Non replicating viral vector", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "1+1;Days0-84;Heterologous boosting", "treatment_id": 1405, "treatment_name": "Ad26.cov2.s+mrna-1274", "treatment_type": "Non replicating viral vector+rna based vaccine", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "1+1;Days0-84;Heterologous boosting", "treatment_id": 2298, "treatment_name": "Ad26.cov2.s+bnt162b2", "treatment_type": "Non replicating viral vector+rna based vaccine", "pharmacological_treatment": "Vaccine"}]