Here is the design of a clinical trial:

Official Title: Honey and Nigella Sativa in the Prophylaxis of COVID-19: A Randomized Controlled Trial

Included conditions:
- Covid19

Study Armgroups:
- {'label': 'Honey and Nigella sativa Arm', 'type': 'ACTIVE_COMPARATOR', 'description': '0.5 g/kg/day honey 40 mg/Kg/day Nigella sativa seeds', 'interventionNames': ['Drug: Honey', 'Drug: Nigella sativa seed']}
- {'label': 'Placebo Arm', 'type': 'PLACEBO_COMPARATOR', 'description': 'empty capsule with sugar water', 'interventionNames': ['Other: Placebo']}

Interventions:
- {'type': 'DRUG', 'name': 'Honey', 'description': '0.5 gm/Kg/day honey', 'armGroupLabels': ['Honey and Nigella sativa Arm']}
- {'type': 'DRUG', 'name': 'Nigella sativa seed', 'description': '40 mg/Kg/day', 'armGroupLabels': ['Honey and Nigella sativa Arm']}
- {'type': 'OTHER', 'name': 'Placebo', 'description': 'empty capsule with sugar water', 'armGroupLabels': ['Placebo Arm']}

Primary Outcomes:
- {'measure': 'SARS-CoV-2 infection rate', 'description': 'RT-PCR SARS-CoV-2', 'timeFrame': '14 days'}

Please estimate the sample size based on the assumption: 
Not specified
Numbers to be randomised (sample size)
          1000 participants will be enrolled in the study with 1:1 allocation.