PROLIFIC ChemoprophylaxisTrial (COVID-19)
COVID-19
About this trial
This is an interventional prevention trial for COVID-19 focused on measuring SARS-CoV-2, Coronavirus, COVID-19, chemoprophylaxis, Hydroxychloroquine
Eligibility Criteria
Inclusion Criteria:
To be included in the trial the participant MUST:
- Have given written informed consent to participate
- Be aged 18 years to 70 years
- Not previously have been diagnosed with COVID-19
- Work in a high-risk secondary or tertiary healthcare setting (hospitals accepting COVID-19 patients) with direct patient-facing care
Exclusion Criteria:The presence of any of the following will mean participants are ineligible:
- Known COVID-19 positive test at baseline (if available)
- Symptomatic for possible COVID-19 at baseline
- Known hypersensitivity reaction to HCQ, chloroquine or 4-aminoquinolines
- Known retinal disease
- Known porphyria
- Known chronic kidney disease (CKD; eGFR<30ml/min)
- Known epilepsy
- Known heart failure or conduction problems
- Known significant liver disease (Gilbert's syndrome is permitted)
- Known glucose-6-phosphate dehydrogenase (G6PD) deficiency
Currently taking any of the following contraindicated medications:
- Digoxin
- Chloroquine
- Halofantrine
- Amiodarone
- Moxifloxacin
- Cyclosporin
- Mefloquine
- Praziquantel
- Ciprofloxacin
- Clarithromycin
- Prochlorperazine
- Fluconazole
- Currently taking hydroxychloroquine or having a clinical indication for taking hydroxychloroquine
- Currently breastfeeding
- Unable to be followed-up during the trial
- Current or future involvement in the active treatment phase of other interventional research studies (excluding observational/non-interventional studies) before study follow-up visit
- Not able to use or have access to a modern phone device/web-based technology
- Any other clinical reason which may preclude entry in the opinion of the investigator
Sites / Locations
- Cambridge University Hospitals NHS Foundation TrustRecruiting
Arms of the Study
Arm 1
Arm 2
Arm 3
Active Comparator
Active Comparator
Placebo Comparator
Hydroxychloroquine - Daily dosing
Hydroxychloroquine - Weekly dosing
Placebo
Hydroxychloroquine Daily (loading phase: 800mg for first 2 days; maintenance phase: 1 x 200mg tablet every day) + weekly placebo, for approximately 90 days. Route: Oral. Pharmaceutical form: Tablet
Hydroxychloroquine weekly (loading phase: 800mg for first 2 days; maintenance phase: 2 x 200mg tablets every 7th day/weekly) + daily placebo, for approximately 90 days. Route: Oral. Pharmaceutical form: Tablet
Placebo arm - 2 tablets twice daily for first 2 days (loading phase), followed by 1 tablet every day for 90 days plus 2 tablets every 7th day, for approximately 90 days. Route: Oral. Pharmaceutical form: Tablet