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Purpose

The primary purpose of this study is to evaluate the efficacy and safety of secutrelvir in symptomatic nonhospitalized adult and adolescent participants with COVID-19 who are at high risk for progression to severe disease.

Condition

Eligibility

Eligible Ages
Over 12 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Must be 12 to <18 years of age (where permitted by local regulations) with a body weight ≥40 kilograms, or ≥18 years of age regardless of body weight, at the time of signing the informed consent form. - Presence of risk factors for progression to severe COVID-19 at the time of screening. - Must have ≥1 COVID-19 signs/symptoms that are at least mild in severity, and the symptoms must still be present in the 24 hours prior to randomization. - Confirmed SARS-CoV-2 infection, as determined by any SARS-CoV-2 test (for example, quantitative reverse transcription polymerase chain reaction, antigen test) approved according to local regulations, of any respiratory tract specimen (for example, oropharyngeal, nasopharyngeal or nasal swab, or saliva), collected ≤72 hours prior to randomization. - Must be randomized within 72 hours of symptom onset, defined as the time when the first COVID-19 symptom occurs. - Contraceptive use by women should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies. - A women of childbearing potential must have a negative urine pregnancy test within 24 hours prior to receiving the investigational intervention. - Unable or unwilling to take other locally available COVID-19 antivirals (for example, nirmatrelvir/ritonavir, molnupiravir, remdesivir, ensitrelvir).

Exclusion Criteria

  • Planned >24 hours hospitalization for any medical procedure through Day 28. - Documented respiratory infection (for example, influenza, respiratory syncytial virus) other than COVID-19 within the 14 days prior to the screening visit. - Known history of cirrhosis or liver decompensation (including ascites, variceal bleeding, or hepatic encephalopathy). - Known history of any of the following abnormalities in the following clinical laboratory tests (within 6 months prior to the screening visit): - Total bilirubin ≥2*upper limit of normal (ULN) (except for Gilbert's syndrome) - Aspartate aminotransferase or alanine aminotransferase ≥3*ULN - Suspected or confirmed COVID-19 unrelated to the current episode within 6 months prior to randomization or, for moderately immunocompromised participants, within 3 months prior to 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-19 or post-acute sequelae of COVID-19 diagnosis. - Current severely immunocompromised conditions. - Received any other COVID-19-specific therapies within the following timeframes: - Antiviral agents (for example, remdesivir, nirmatorelvir/ritonavir, molnupiravir, ensitrelvir) within 30 days or 5 half-lives (whichever is longer) prior to randomization - Anti-SARS-CoV-2 monoclonal antibodies and COVID-19 convalescent plasma within 6 months prior to randomization Note: Other protocol-define criteria apply

Study Design

Phase
Phase 3
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
Double (Participant, Investigator)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Secutrelvir 		Participants will receive secutrelvir.
  • Drug: Secutrelvir
    Secutrelvir will be administered orally as a tablet.
    Other names:
    • S-892216
Placebo Comparator
Placebo 		Participants will receive placebo.
  • Drug: Placebo
    Placebo will be administered orally as a tablet.

Recruiting Locations

More Details

NCT ID
NCT07743580
Status
Not yet recruiting
Sponsor
Shionogi

Study Contact

Shionogi Clinical Trials Administrator Clinical Support Help Line
1-800-849-9707
Shionogiclintrials-admin@shionogi.co.jp

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.