Evaluating XW001 inhalation for treating RSV in children

Randomized, Double-blind, Placebo-controlled Phase Ib/Ⅱa Study to Evaluate the Safety, Tolerability, Efficacy, Pharmacokinetics, and Immunogenicity of XW001 Inhalation in Children With Respiratory Syncytial Virus (RSV) Infection in China

Phase1; Phase2 Interventional Hangzhou Sciwind Biosciences Co., Ltd. · NCT05779995

This study is testing a new inhaled treatment called XW001 to see if it helps young children with RSV infection feel better and stay safe while using it.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Enrollment60 (estimated)
Ages1 Month to 24 Months
SexAll
SponsorHangzhou Sciwind Biosciences Co., Ltd. Industry-sponsored
Locations1 site (Chengdu, Sichuan)
Trial IDNCT05779995 on ClinicalTrials.gov

What this trial studies

This is a randomized, double-blind, placebo-controlled Phase Ib/IIa study designed to assess the safety, tolerability, efficacy, pharmacokinetics, and immunogenicity of XW001 inhalation in children diagnosed with RSV infection. Participants aged 1 to 24 months will be randomly assigned in a 4:1 ratio to receive either XW001 or a placebo once daily for 7 days. The study aims to gather comprehensive data on the treatment's effects and safety profile in a pediatric population.

Who should consider this trial

Good fit: Ideal candidates are children aged 1 to 24 months who have tested positive for RSV and are symptomatic.

Not a fit: Patients who are immunocompromised or have a history of certain medical conditions, such as seizures or recent surgeries, may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for young children suffering from RSV infection.

How similar studies have performed: While this approach is novel, similar studies targeting RSV have shown promise in developing effective treatments.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Male or female, 1 to 24 months (inclusive) at screening;
2. Weight: 3-20 kg, inclusive;
3. Positive RSV test within 36 hours before randomization;
4. Symptomatic at screening and randomization, and the onset of RSV symptoms is within 5 days prior to the first dose of XW001;
5. Parents/legal guardians are able to understand the purpose and procedures of the study, and are able to provide informed consent.

Exclusion Criteria:

1. Immunocompromised as determined by the investigator;
2. Known to have undergone or planned for bone marrow, stem cells, or other organ transplants, or are currently on immunosuppressive treatment;
3. Positive for HBV, HCV or HIV, or patient \<6 months old whose mother is positive for HIV;
4. History of seizures or epilepsy, including febrile seizure;
5. Known to have received any prohibited medications defined by the protocol within 3 days prior to randomization;
6. History of any surgery within 30 days prior to randomization;
7. Severe dental or facial deformity that will impact on usage of nebulizer;
8. History of receiving measles, mumps, rubella or other vaccines within 7 days prior to screening;
9. Known to have received any investigational medicinal products or devices in the past 30 days;
10. Any other underlying conditions that make the patient unlikely to complete the study in the opinion of the investigator.

Where this trial is running

Chengdu, Sichuan

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions RSV InfectionXW001Respiratory Syncytial Virus
Last reviewed 2026-06-13 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.