Hydroxychloroquine Chemoprophylaxis for COVID-19 Infection in High-risk Healthcare Workers.
SARS-CoV-2, Healthcare Workers

About this trial
This is an interventional prevention trial for SARS-CoV-2 focused on measuring SARS-CoV-2, HCQ, prophylaxis, healthcare workers
Eligibility Criteria
Inclusion Criteria:
- Adult healthcare workers all genders ≥ 18 to ≤ 60 years of age upon study consent.
Healthcare workers (doctors and nurses) at Services hospital, Lahore considered work at high-risk of SARS-CoV-2 exposure (defined below):
- Healthcare workers in Corona triage areas.
- Healthcare workers in Corona Isolation Units.
- Healthcare workers in Corona ICUs.
- Healthcare workers in general medical wards.
- Healthcare workers in general surgical wards.
- Healthcare workers in other units not directly dealing with suspected Corona patients e.g. Endocrinology department
- Afebrile with no constitutional symptoms.
- No household contact with confirmed active SARS-CoV-2 infection in the last 3 weeks.
- Negative PCR at visit 0.
- Willing and able to comply with scheduled visits, treatment plan, and other study procedures.
- Willing to not take any other medicines especially fluoroquinolones and macrolides for the duration of study.
- Signed informed consent, demonstrating that the subject understands the interventions required for the study and the purpose of the study.
Exclusion Criteria:
- Participation in other investigational clinical trials for the treatment or prevention of SARS-CoV-2 infection within 30days.
- Subjects unwilling to practice at least one highly effective method of birth control for the duration of the study.
- Having a prior history of blood disorders such as aplastic anemia, agranulocytosis, leukopenia, or thrombocytopenia or prior history of glucose-6-phosphate dehydrogenase (G-6-PD) deficiency.
- Having H/O skin disorders e.g. dermatitis, psoriasis or porphyria.
Taking any of the following medication:
- Anti-arrythmic agents including digoxin.
- GI drugs including antacids, proton-pump inhibitors, cimetidine.
- Anti-cancer treatment including methotrexate, cyclosporin.
- Anti-diabetic agents including insulin.
- Corticosteroids.
- Drugs causing QT interval prolongation especially antidepressants, anti-epileptics and macrolides.
- Drugs affecting electrolyte balance including diuretics, laxatives.
- Drug allergies: 4-Aminoquinolines.
- Pre-existing retinopathy/maculopathy of the eye.
- Known chronic liver disease or cirrhosis, including hepatitis B and/or untreated hepatitis.
- Previous history of severe hypoglycaemia.
- Known case of renal disease.
- Untreated or uncontrolled active bacterial, fungal infection.
- Known or suspected active drug or alcohol abuse.
- Women who are pregnant or breastfeeding.
- Known hypersensitivity to any component of the study drug.
- A known history of prolonged QT syndrome or history of additional risk factors for arrythmias (e.g., heart failure, family history of Long QT Syndrome).
- Known H/O respiratory disorders e.g. asthma, chronic obstructive pulmonary disease.
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Experimental
Placebo Comparator
Treatment group
Control group
Health care workers at high risk of contracting SARS-CoV-2 randomized to this arm will be treated with oral hydroxychloroquine 400 mg twice a day (four 200 mg tablets) on day 1 followed by 400mg (two 200 mg tablets) once a week for 11 weeks.
Health care workers at high risk of contracting SARS-CoV-2 randomized to this arm will be treated with placebo twice a day (four tablets) on day 1 followed by 2 tablets once a week for 11weeks.