Secutrelvir for nonhospitalized COVID-19 in teens and adults
Official title: A Phase 3 Randomized, Double-blind, Placebo-controlled Study to Evaluate the Efficacy and Safety of Secutrelvir in Participants With COVID-19
Run by Shionogi Inc. · NCT07746544 · Data updated 2026-11-12
This study tests whether secutrelvir can help nonhospitalized people with COVID-19 see faster symptom relief compared with a placebo.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 12 Years to 74 Years |
| Sex | All |
| Enrollment | 1200 (estimated) |
| Sponsor | Shionogi Inc. Industry-sponsored |
| Locations | 1 site (Multiple Locations) |
| Status | Recruiting |
| Started | August 5, 2026 |
| Main results expected | July 31, 2027 |
| Study ends | August 31, 2027 |
| Registry record updated | September 2, 2026 |
| Trial ID | NCT07746544 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are individuals aged 12–74 (with specified weight criteria) who have at least one moderate or severe COVID-19 symptom and a confirmed SARS-CoV-2 infection within 48 hours of randomization.
✕Probably not a fit
Patients who require hospitalization within 24 hours or who do not meet symptom or timing criteria may not benefit from this treatment.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Participants with COVID-19 who are not in hospital and within 48 hours of symptom onset are randomized to receive either secutrelvir or a placebo. The trial focuses on age groups 12–17 (with weight conditions) and 18–74 irrespective of weight, assessing whether the treatment helps resolve symptoms sooner. It is a Phase 3, randomized, controlled study sponsored by Shionogi at a Japanese site with multiple locations. The primary comparison is time to resolution of clinical symptoms, with safety monitoring ongoing.
Why it matters
Potential benefit: If successful, secutrelvir could shorten illness duration and improve recovery for nonhospitalized patients with COVID-19.
How similar studies have gone: Previous studies with similar protease inhibitors have shown potential benefits in nonhospitalized patients, though results vary by compound and population.
Who can join: the full rules
Show full inclusion / exclusion criteria
Key Inclusion Criteria: * Must be 12 to \< 18 years of age (where permitted by local regulation) with a body weight ≥ 40 kilograms (kg), or ≥ 18 and \< 75 years of age regardless of body weight, at the time of signing the informed consent form (ICF). * Must have ≥ 1 of the protocol-defined COVID-19 symptoms of moderate or severe, present within 24 hours prior to randomization. * Confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection as determined by any SARS-CoV-2 test, collected ≤ 48 hours prior to randomization. * Must be randomized within 48 hours of COVID-19 symptom onset, defined as the time when the first COVID-19 symptom occurs. * Agrees not to participate in another clinical study for the treatment of COVID-19 until completion of the study. Key Exclusion Criteria: * Current need or anticipated need for hospitalization within 24 hours, due to signs of severe COVID-19 illness or due to other medical conditions requiring hospitalization in the opinion of the site investigator. * Documented respiratory infection (for example, influenza, respiratory syncytial virus infection) other than COVID 19 within 14 days prior to the screening visit. * Known history of cirrhosis or liver decompensation (including ascites, variceal bleeding, or hepatic encephalopathy). * Suspected or confirmed COVID-19 outside of the current episode within 3 months of randomization. * Suspected or confirmed concurrent active systemic infection other than COVID-19 that may interfere with the evaluation of response to the investigational intervention. * Ongoing long COVID or postacute sequelae of COVID (PASC) diagnosis. * Current severely immunocompromised conditions. * Received or expected to receive any other COVID-19-specific therapies. * Have previously received secutrelvir. * Exposed to an investigational drug within 30 days or 5 half-lives (whichever is longer) prior to the screening visit. Note: Other protocol-defined inclusion and exclusion criteria may apply.
Where it's running
-
Japanese Site 1
Multiple Locations, Japan Recruiting
Study contacts
- Study coordinator: Shionogi Clinical Trials Administrator Clinical Support Help Line
- Email: Shionogiclintrials-admin@shionogi.co.jp
- Phone: 1-800-849-9707
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.