[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "HDT-301", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "HDT-301", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "HDT-301", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "1, day 0, previously received Emergency Use Authorization (EUA) vaccines against SARS-CoV-2 with most recent vaccination 90 days or more prior to trial initiation", "treatment_id": 562, "treatment_name": "Hdt 301 vaccine", "treatment_type": "Rna based vaccine", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "2, day 0 and day 56, previously received Emergency Use Authorization (EUA) vaccines against SARS-CoV-2 with most recent vaccination 90 days or more prior to trial initiation", "treatment_id": 562, "treatment_name": "Hdt 301 vaccine", "treatment_type": "Rna based vaccine", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "2, day 0 and day 56", "treatment_id": 562, "treatment_name": "Hdt 301 vaccine", "treatment_type": "Rna based vaccine", "pharmacological_treatment": "Vaccine"}]