Clinical trial Recruiting at 2 sites Phase 3 Interventional Ages 1 Month to 36 Months

Deuremidevir hydrobromide treatment for RSV in infants and young children

Official title: A Phase III, Randomized, Double-Blind, Placebo-Controlled Clinical Trial to Evaluate the Efficacy and Safety of Deurremidevir Hydrobromide for Oral Suspension in Infants and Young Children With Respiratory Syncytial Virus Infection

Run by Simcere Pharmaceutical Co., Ltd · NCT07402512 · Data updated 2026-11-12

This trial tests whether deuremidevir hydrobromide, given by weight three times daily for five days, helps infants and young children (1–36 months) with confirmed RSV recover faster or have milder symptoms than a placebo.

More Respiratory Syncytial Virus (RSV) trials

Quick facts

PhasePhase 3
Study typeInterventional
Ages1 Month to 36 Months
SexAll
Enrollment498 (estimated)
SponsorSimcere Pharmaceutical Co., Ltd
Academic / other
Locations4 sites (Xiamen, Fujian and 3 other locations)
StatusRecruiting
StartedMarch 11, 2026
Main results expectedMarch 31, 2027
Study endsJune 30, 2027
Registry record updatedApril 2, 2026
Trial IDNCT07402512 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Infants and young children aged 1–36 months, weighing 2.5–20 kg, with a positive RSV test, symptom onset within 96 hours, tachypnea, wheezing, and a Wang Bronchiolitis Score ≥5 are the intended participants.

Probably not a fit

Children with severe intrapulmonary or extrapulmonary complications, need for vasopressors or inotropes, known concurrent infections (such as SARS-CoV-2, influenza, or Mycoplasma), known hypercapnia, chronic feeding difficulties, or certain gastrointestinal diseases were excluded and are unlikely to benefit in this protocol.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This randomized, double-blind, placebo-controlled, parallel-group Phase III trial plans to enroll about 498 infants and young children aged 1 to 36 months with confirmed RSV infection and symptom duration ≤96 hours. Participants are randomized 2:1 to receive weight-based deuremidevir hydrobromide (20 mg/kg) or matching placebo three times daily for five consecutive days (15 doses). Eligibility requires tachypnea, wheezing, and a Wang Bronchiolitis Score ≥5, and clinical signs and safety outcomes will be monitored during treatment and follow-up. The trial is being conducted at pediatric hospitals in Xiamen, Changsha, and Chengdu, China.

Why it matters

Potential benefit: If successful, the drug could shorten illness duration and reduce symptom severity in infants and young children with RSV.

How similar studies have gone: Other antiviral and monoclonal antibody approaches for RSV have shown mixed but promising results in infants, while deuremidevir is a relatively new candidate with limited late-stage published evidence.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Infants and young children aged ≥ 1 month and ≤ 36 months, regardless of gender;
2. Weight ≥ 2.5 kg and ≤ 20 kg;
3. Positive RSV antigen or nucleic acid test
4. Duration of illness due to RSV infection ≤ 96 hours;
5. Presence of tachypnea and wheezing;
6. Wang Bronchiolitis Score≥ 5;
7. For subjects aged \< 12 months, head circumference should be within the normal range corresponding to their age and gender.

Exclusion Criteria:

1. Subjects who have received protocol-specified prohibited medications:
2. Subjects with severe intrapulmonary complications or extrapulmonary complications;
3. Subjects requiring vasopressors or inotropic agents;
4. Subjects with known concurrent SARS-CoV-2 infection, influenza virus infection, Mycoplasma infection, or suspected concurrent bacterial or other pathogen infections;
5. Subjects with a known history of hypercapnia;
6. Subjects with chronic or persistent feeding difficulties;
7. Subjects with gastrointestinal diseases that the investigator believes may significantly affect the absorption of the study drug;
8. Subjects with congenital metabolic abnormalities;
9. Subjects with bronchopulmonary dysplasia requiring assisted ventilation or clinically significant congenital respiratory tract abnormalities;
10. Subjects with congenital heart disease (CHD) that the investigator assesses may affect efficacy evaluation;
11. Subjects with clinical evidence of hepatic decompensation; or abnormal liver function tests;
12. Subjects with renal failure, including renal abnormalities potentially related to renal insufficiency or abnormal renal function tests;
13. Subjects with a known history of HIV positivity, or suspected to be HIV positive by the investigator;
14. Subjects with known or suspected primary immunodeficiency diseases or transplant recipients;
15. Subjects with a history of epilepsy or febrile convulsions;
16. Subjects with a personal or family history of severe allergies or allergies;
17. Subjects with active or uncontrolled respiratory, cardiac, hepatic, central nervous system, or renal diseases, or other medical conditions deemed unsuitable for enrollment by the investigator;
18. Subjects who participated in other drug or medical device clinical trials and received investigational products or devices;
19. Subjects deemed unsuitable for participation in this study by the investigator for any other reason.

Where it's running

  • The First Affiliated Hospital Of Xiamen University
    Xiamen, Fujian, China
    Recruiting
  • Hunan Children's Hospital
    Changsha, Hunan, China
    Recruiting
  • West China Second University Hospital Sichuan University
    Chengdu, Sichuan, China
    Not yet recruiting
  • Shulan(hangzhou)Hospital
    Hangzhou, Zhejiang, China
    Not yet recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.