Skip to content

Real World Evidence Study of SYN023 in Children Exposed to Rabies

A Real-World Registry Study to Evaluate Clinical Protection Outcomes Following Post-Exposure Prophylaxis With Zamerovimab and Mazorelvimab Injection in Combination With Rabies Vaccine in Pediatric With Category III Rabies Exposure

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07327307
Enrollment
232
Registered
2026-01-08
Start date
2025-08-02
Completion date
2026-12-31
Last updated
2026-04-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Rabies Post-exposure Prophylaxis

Keywords

rabies, SYN023, pediatric

Brief summary

This observational study is an open-label, prospective, multi-center design. The goal is to evaluate the long-term clinical survival outcomes at 3 months and 1 year in individuals under 18 years of age with WHO Category III rabies exposure who have received real-world Post-Exposure Prophylaxis (PEP) with Zamerovimab and Mazorelvimab Injection / other passive immunization products combined with the rabies vaccine. Participants will: (1) Have their clinical protection outcomes (rabies-free survival status) registered and evaluated on Day 90 and Day 365. (2) Have the option to provide a blood sample on Day 7 for Rabies Virus Neutralizing Antibody (RVNA) testing. (3) Have all adverse events (within 42 days) and all serious adverse events (within 126 days) after PEP administration collected and recorded.

Interventions

None listed

Sponsors

Synermore Biologics (Suzhou) Co., Ltd.
Lead SponsorINDUSTRY
Peking University First Hospital
CollaboratorOTHER
Shenzhen Second People's Hospital
CollaboratorOTHER
Hunan Provincial People's Hospital
CollaboratorOTHER
The University of Hong Kong-Shenzhen Hospital
CollaboratorOTHER
University of South China Affiliated Nanhua Hospital
CollaboratorUNKNOWN

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
0 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

1. Age under 18 years on the day of enrollment, regardless of gender, and able to provide legal proof of identity; 2. Individuals with WHO Category III rabies exposure, and the time from exposure to the initiation of Post-Exposure Prophylaxis (PEP) is \<7 days; 3. Have completed standardized wound management, injection of Zamerovimab and Mazorelvimab Injection /other passive immunization products, and the first dose of rabies vaccination within 24 hours prior to screening; 4. The volunteer's guardian voluntarily agrees to their participation in the study and signs the informed consent form. Specifically: for volunteers under 8 years old, the guardian signs the informed consent form with the child's assent fully respected; for volunteers aged 8-17, the guardian signs the informed consent form, and the minor volunteer signs the minor assent form; 5. Willing and able to comply with all study procedures, and is expected to be able to complete the full course of rabies vaccination and the 1-year follow-up as required (with no plans for long-term absence or relocation from the study area).

Exclusion criteria

1. Based on inquiry, besides the current Category III rabies exposure, there is a history of bites by dogs, cats, mongooses, foxes, ferrets, skunks, bats, or raccoons within the past year; 2. Other conditions considered by the investigator as unsuitable for participation in this study.

Design outcomes

Primary

MeasureTime frameDescription
Rabies-free survival rate3 months and 1 yearWHO's Classification of Rabies Cases: Suspected case: refers to a case that satisfies the definition of clinical case; Probable case: refers to a suspected case with a reliable medical history of contact with any suspected animal infected with the rabies virus; Confirmed case: refers to a suspected or probable case that is proved to be infected based on the lab test result.

Secondary

MeasureTime frame
Incidence of adverse reactions and adverse events42 days
Incidence of serious adverse reactions and serious adverse events126 days
Rabies Virus Neutralizing Activity (RVNA) of Geometric Mean Concentration (GMC)Day 7
Percentage of Participants With Rabies Virus Neutralizing Activity (RVNA) ≥0.5 IU/mLDay 7

Countries

China

Contacts

CONTACTXiangjun Li
xjli@synermore.cn+86 0512-8765807

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 24, 2026