FLARE: Favipiravir +/- Lopinavir: A RCT of Early Antivirals

• Status: Recruiting
• Trial end date: 2021-12-31
• Target enrollment: 0
• Participant gender: All

Summary

The current pandemic of SARS-CoV-2 causing COVID-19 disease is an unprecedented global emergency. COVID-19 appears to be a disease with an early phase where the virus replicates, coinciding with first presentation of symptoms, followed by a later 'inflammatory' phase which results in severe disease in some individuals. It is known from other rapidly progressive infections such as sepsis and influenza that early treatment with antimicrobials is associated with better outcome. Antiviral medications are most likely to be effective when administered soon after infection. There is therefore an urgent need to study subjects who have recently developed symptoms, or have recently been tested positive with or without symptoms, and who can be sampled frequently to understand changes in viral load. This cohort will allow us to collect detailed trajectory data on early disease and understand how pharmacological interventions may affect this. The objective of the FLARE trial is to assess whether early antiviral therapy with either favipiravir + Lopinavir/ritonavir (LPV/r), LPV/r or favipiravir is associated with a decrease in viral load compared with placebo. The hypothesis is that this holds for COVID-19 and that early antiviral treatment may prevent progression to the later phase of the disease.

• Phase: Phase 2
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: University College, London
• Collaborator: LifeArc
• Treatments: Favipiravir; Lopinavir; Ritonavir

Criteria

Inclusion Criteria:

1. Any adult with the following:

• Symptoms compatible with COVID-19 disease (Fever >37.8oC on at least one occasion AND either cough and/ or anosmia) within the first 5 days of symptom onset

• OR ANY symptoms compatible with COVID-19 disease (may include, but are not limited to fever, cough, shortness of breath, malaise, myalgia, headache, coryza) and tested positive for SARS-CoV-2 within the first 7 days of symptom onset

• OR no symptoms but tested positive for SARS-CoV-2 within the last 48 hours (date/time of test must be within 48 hours of enrolment)

2. Male or female aged 18 years to 70 years old inclusive at screening

3. Willing and able to take daily saliva samples

4. Able to provide full informed consent and willing to comply with trial-related procedures

Exclusion Criteria:

1. Known hypersensitivity to any of the active ingredients or excipients in favipiravir and matched placebo, and in lopinavir/ritonavir and matched placebo

2. Chronic liver disease at screening (known cirrhosis of any aetiology, chronic hepatitis (e.g. autoimmune, viral, steatohepatitis), cholangitis or any known elevation of liver aminotransferases with AST or ALT > 3 X ULN)*

3. Chronic kidney disease (stage 3 or beyond) at screening: eGFR < 60 ml/min/1.73m2*

4. HIV infection, if untreated, detectable viral load or on protease inhibitor therapy

5. Any clinical condition which the investigator considers would make the participant unsuitable for the trial

6. Concomitant medications known to interact with favipiravir and matched placebo, and with lopinavir/ritonavir and matched placebo, and carry risk of toxicity for the participant

7. Current severe illness requiring hospitalisation

8. Pregnancy and/ or breastfeeding

9. Eligible female participants of childbearing potential and male participants with a partner of childbearing potential not willing to use highly effective contraceptive measures during the trial and within the time point specified following last trial treatment dose.

10. Participants enrolled in any other interventional drug or vaccine trial (co-enrolment in observational studies is acceptable).

11. Participants who have received the COVID-19 vaccine

• Considering the importance of early treatment of COVID-19 to impact viral load, the absence of chronic liver/ kidney disease will be confirmed verbally by the participant during pre-screening and Screening/Baseline visit. Safety blood samples will be collected at Screening/Baseline visit (Day 1) and test results will be examined as soon as they become available within 24 hours.