Here is the design of a clinical trial:

Official Title: Efficacy of Iodine Complex in Mild to Moderate COVID-19 Patients

Included conditions:
- Covid19
- SARS-CoV-2
- Corona Virus Infection

Study Armgroups:
- {'label': 'Iodine Complex (Capsule form)', 'type': 'EXPERIMENTAL', 'description': 'Iodine Complex) capsule (200mg) will be given three times a day', 'interventionNames': ['Drug: Iodine Complex']}
- {'label': 'Iodine Complex (Syrup form)', 'type': 'EXPERIMENTAL', 'description': 'Iodine Complex syrup form (40ml) will be given three times a day', 'interventionNames': ['Drug: Iodine Complex']}
- {'label': 'Standard Care Alone', 'type': 'PLACEBO_COMPARATOR', 'description': 'Placebo as empty capsule. Treatment will be given for all 4 arms will be receiving standard care as per version 3.0 of clinical management guidelines for COVID-19 established by the Ministry of National Health Services of Pakistan COVID-19 guidelines of the study setting.', 'interventionNames': ['Drug: Placebo']}
- {'label': 'Iodine Complex (Nasal Spray)', 'type': 'EXPERIMENTAL', 'description': 'Iodine complex throat spray of 2 puffs three times a day.', 'interventionNames': ['Drug: Idoine Complex']}

Interventions:
- {'type': 'DRUG', 'name': 'Iodine Complex', 'description': 'Iodine Complex capsule (200mg) will be given three times a day', 'armGroupLabels': ['Iodine Complex (Capsule form)']}
- {'type': 'DRUG', 'name': 'Iodine Complex', 'description': 'Iodine Complex syrup form (40ml) will be given three times a day', 'armGroupLabels': ['Iodine Complex (Syrup form)']}
- {'type': 'DRUG', 'name': 'Placebo', 'description': 'Empty capsule will be given as placebo', 'armGroupLabels': ['Standard Care Alone'], 'otherNames': ['capsule']}
- {'type': 'DRUG', 'name': 'Idoine Complex', 'description': 'Iodine Complex spray form 2 puffs will be given three times a day', 'armGroupLabels': ['Iodine Complex (Nasal Spray)']}

Primary Outcomes:
- {'measure': 'qRT-PCR', 'description': 'Time taken for viral load clearance', 'timeFrame': '14 days'}
- {'measure': 'HRCT chest', 'description': 'Time taken for radiological improvement', 'timeFrame': '14 days'}

Please estimate the sample size based on the assumption: 
Not specified
Numbers to be randomised (sample size)
          200 patients will be randomized into four groups with three experimental and one placebo arm.