[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Adult group in immunogenicity and safety study of combined immunization", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Adult group in safety observation study of combined immunization", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Elderly group in immunogenicity and safety study of combined immunization", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Elderly group in safety observation study of combined immunization", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "Adult group in immunogenicity and safety study", "treatment_id": 2587, "treatment_name": "Covid19 vaccine+influenza vaccine+pneumococcal vaccine", "treatment_type": "Protein subunit+non covid vaccine", "pharmacological_treatment": "Vaccine+non covid vaccine"}, {"arm_notes": "Elderly group in immunogenicity and safety study", "treatment_id": 2587, "treatment_name": "Covid19 vaccine+influenza vaccine+pneumococcal vaccine", "treatment_type": "Protein subunit+non covid vaccine", "pharmacological_treatment": "Vaccine+non covid vaccine"}, {"arm_notes": "Adult group in safety observation study", "treatment_id": 2587, "treatment_name": "Covid19 vaccine+influenza vaccine+pneumococcal vaccine", "treatment_type": "Protein subunit+non covid vaccine", "pharmacological_treatment": "Vaccine+non covid vaccine"}, {"arm_notes": "Elderly group in safety observation study", "treatment_id": 2587, "treatment_name": "Covid19 vaccine+influenza vaccine+pneumococcal vaccine", "treatment_type": "Protein subunit+non covid vaccine", "pharmacological_treatment": "Vaccine+non covid vaccine"}]