- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04352933
PROLIFIC ChemoprophylaxisTrial (COVID-19)
ChemoPROphyLaxIs For covId-19 Infectious Disease (the PROLIFIC Trial)
Study Overview
Status
Conditions
Detailed Description
The number of confirmed cases of COVID-19 infectious disease arising from the SARS-CoV-2 coronavirus is rising substantially and rapidly, with the potential to overwhelm the ability of the entire National Health Service (NHS) to cope with the increased demand. The availability of personal protective equipment is limited and reports of high risk procedures such as aerosol generating procedures (e.g. intubation for the sickest patients) is a source of great concern for infection transmission. Frontline NHS staff with direct patient contact have the highest likelihood of exposure to SARS-CoV-2 and development of COVID-19 disease. Efforts to protect these workers from development of COVID-19, using drugs to prevent the disease, require urgent evaluation.
This trial will be a double-blind, randomized, placebo-controlled trial in a cohort of frontline healthcare workers, who will potentially be exposed to SARS-CoV-2. Eligible participants will be frontline NHS workers aged 18 to 70 years who work in a healthcare setting with direct patient care. Participants will be randomised to one of 3 arms and receive either: (1) Hydroxychloroquine Daily (loading phase: 800mg for first 2 days; maintenance phase: 1 x 200mg tablet every day) + weekly placebo; (2) Hydroxychloroquine weekly (loading phase: 800mg for first 2 days; maintenance phase: 2 x 200mg tablets every 7th day/weekly) + daily placebo, or (3) placebo (daily and weekly).
Participants will be reviewed at an interim visit 6 weeks after baseline and again and the end of the study treatment in 90 days (approximately 3 months) after randomization. Participants will also complete brief questions about their health weekly while on treatment (remotely, via app/web/phone-based interface).
Study Type
Enrollment (Anticipated)
Phase
- Phase 3
Contacts and Locations
Study Contact
- Name: Ella James, PhD
- Phone Number: 01223 349762
- Email: ella.james@addenbrookes.nhs.uk
Study Contact Backup
- Name: Heike Templin
- Phone Number: 01223 250874
- Email: heike.templin@addenbrookes.nhs.uk
Study Locations
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-
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Cambridge, United Kingdom, CB2 0QQ
- Recruiting
- Cambridge University Hospitals NHS Foundation Trust
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
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
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Hydroxychloroquine - Daily dosing
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 |
Active HCQ: Days 1-2: Loading phase - 400mg (2 x 200mg capsules) taken TWICE A DAY for 2 days Days 3 onwards: Maintenance Phase - 200mg (1 x 200mg capsule) taken ONCE A DAY, every day for 90 days (~3 months), Matched Placebo HCQ: Days 3 onwards: Maintenance Phase - 2 capsules taken ONCE A WEEK on the same day each week (every 7th day) for 90 days (~3 months) |
Active Comparator: Hydroxychloroquine - Weekly dosing
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 |
Active HCQ: Days 1-2: Loading Phase - 400mg (2 x 200mg capsules) taken TWICE A DAY for 2 days Days 3 onwards: Maintenance Phase - 400mg (2 x 200mg capsules) taken ONCE A WEEK on the same day each week (every 7th day) for 90 days (~3 months) Matched Placebo HCQ: Days 3 onwards: Maintenance Phase - 1 capsule taken ONCE A DAY for 90 days (~3 months) |
Placebo Comparator: Placebo
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 |
Matched placebo HCQ - daily dosing: Days 1-2: Loading Phase - 2 capsules taken TWICE A DAY for 2 days Days 3 onwards: Maintenance Phase - 1 capsule taken ONCE A DAY for 90 days (~3 months) Matched placebo HCQ - weekly dosing Days 3 onwards: Maintenance Phase - 2 capsules taken ONCE A WEEK on the same day each week (every 7th day) for 90 days (~3 months) |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Time to positive COVID-19 disease
Time Frame: Assessed up to 90 days
|
Time taken for incidence of COVID-19 disease between Hydroxychloroquine and placebo arms
|
Assessed up to 90 days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of COVID-19 test positive cases
Time Frame: Assessed up to 90 days
|
Number of COVID-19 symptoms based on clinical guidelines and test positive infections per study arm
|
Assessed up to 90 days
|
Number of COVID-19 serological test positive cases
Time Frame: Assessed up to 90 days
|
Number of test positive COVID-19 serological test positive cases per study arm
|
Assessed up to 90 days
|
Severity of COVID-19 disease between each arm
Time Frame: Assessed up to 90 days
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Severity based on hospitalisation
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Assessed up to 90 days
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Number of common COVID-19 complications between each arm
Time Frame: Assessed up to 90 days
|
Number of common COVID-19 complications between arms
|
Assessed up to 90 days
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Coronavirus Infections
- Coronaviridae Infections
- Nidovirales Infections
- RNA Virus Infections
- Virus Diseases
- Infections
- Respiratory Tract Infections
- Respiratory Tract Diseases
- Pneumonia, Viral
- Pneumonia
- Lung Diseases
- COVID-19
- Molecular Mechanisms of Pharmacological Action
- Anti-Infective Agents
- Enzyme Inhibitors
- Antirheumatic Agents
- Antiprotozoal Agents
- Antiparasitic Agents
- Antimalarials
- Hydroxychloroquine
Other Study ID Numbers
- PROLIFIC2020 (A095583)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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