Recruiting

Testing antiviral medications for early COVID-19 infection

Plain-English translation of NCT05041907 on ClinicalTrials.gov ↗ · Source last updated February 2026 · Translation generated June 2026 · How we translate trials

Phase 2 — Testing in a bigger group (up to a few hundred people) to see if the treatment actually works and is still safe.

What is this trial?

This is a large study testing different antiviral medications—including , , , and others—to find out which ones work best at stopping COVID-19 early on. Researchers are also testing whether lower doses of some medications work just as well as higher doses, which could mean fewer side effects and lower costs. Some participants will receive a medication, while others will be in a comparison group that receives no treatment, so doctors can see which approach works better.

During the COVID-19 pandemic, doctors needed to find safe and effective treatments that could stop the virus early, before people became seriously ill. This trial will help identify which medications actually work, how well they work, and whether we can use lower doses to reduce side effects and make treatment more affordable.

Do you qualify?

You likely qualify if…

you are between 18 and 60 years old and were generally healthy before getting COVID-19
you have tested positive for COVID-19 within the last 24 hours using a rapid test or PCR test
you have had COVID-19 symptoms (like fever or cough) for fewer than 4 days
your oxygen level is at least 96% when measured by a pulse oximeter
you are able to walk around on your own and manage daily activities without help
you are willing to come back for follow-up visits and stay in contact with the research team

You likely don't qualify if…

you are currently taking other medications (with limited exceptions like birth control pills)
you have chronic conditions like diabetes or obesity, or other serious health problems that require ongoing treatment
you are pregnant, trying to become pregnant, or breastfeeding
you have a known allergy or bad reaction to any of the study medications
you are already enrolled in another COVID-19 treatment or vaccine trial

What participation looks like

If you join this trial, you will be randomly assigned to receive one of the study medications or no treatment (the comparison group). You will take your assigned medication for a short period and then come back for follow-up visits where researchers will check how you are doing, test whether the virus is still present, and watch for any side effects. The study is designed so that researchers can compare how well different treatments work and stop testing arms that are not performing well, meaning the focus stays on the most promising options.

AI-generated summary from trial data · Jun 6, 2026 · Not medical advice

Testing antiviral medications for early COVID-19 infection

What is this trial?

Do you qualify?

What participation looks like

Trial locations(7 sites)