- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT07624461
Real-World Effectiveness of Zamerovimab and Mazorelvimab and Vaccine for Rabies Grade III Exposure in Nanyang
Post-Exposure Prophylaxis Outcome of Zamerovimab and Mazorelvimab Injection and Rabies Vaccine in Grade III Rabies Exposure Cases From Single-Dog Multiple-Bite Incidents: A Real-World Prospective Study
The objective of this real-world, prospective observational study is to evaluate the clinical effectiveness of zamerovimab and mazorelvimab injection (a human rabies monoclonal antibody cocktail) administered in combination with a standard rabies vaccine for post-exposure prophylaxis (PEP) in individuals with WHO Grade III rabies exposure in Nanyang City, China.
- The study primarily aims to assess:
- The 3-month rabies-free survival rate following PEP initiation.
- The 1-year long-term rabies-free survival rate.
The rabies virus (RABV) carrying rate and genomic epidemiology among offending dogs involved in single-dog multiple-bite incidents.
Eligible participants aged 18 years or older who have sustained a Grade III exposure from a tracked multi-person canine attack event, and have completed wound debridement and initial passive/active immunization within 24 hours prior to screening, will be followed for up to 1 year via telephone or clinic visits to monitor clinical survival.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Type d'étude
Inscription (Estimé)
Contacts et emplacements
Lieux d'étude
-
-
Henan
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Nanyang, Henan, Chine, 473000
- The Disease Prevention and Control Center of Nanyang
-
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
Méthode d'échantillonnage
Population étudiée
La description
Inclusion Criteria:
- Adults aged ≥18 years at the time of screening.
- Sustained a verified WHO Grade III rabies exposure from a traceable offending dog involved in a multi-person canine attack incident (defined as a single animal attacking multiple individuals within a clustered timeframe/location) in Nanyang City.
- Time interval from Grade III exposure to post-exposure prophylaxis (PEP) initiation is less than 7 days.
- Successfully completed standard wound debridement, anatomical infiltration of zamerovimab/mazorelvimab injection (0.3 mg/kg single full dose), and the first dose of rabies vaccine within 24 hours prior to screening.
- Voluntarily provides signed written informed consent.
- Patient is willing and able to comply with all sequential follow-up procedures (including serum collections if applicable) and intends to reside locally for the full 1-year study duration.
Exclusion Criteria:
- Documented history of any separate animal bite or scratch (e.g., dog, cat, bat, or wild carnivore) within the past 12 months prior to the current exposure.
- Documented complete pre-exposure or post-exposure rabies vaccination history within the past 12 months.
- Concurrent presentation with life-threatening traumatic injuries requiring intensive care, or severe systemic immunodeficiency disorders that could impede immunogenicity or follow-up compliance.
- Any other clinical or psychological condition deemed by the investigator as unsuitable for safe participation or reliable data registry.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
Intervention / Traitement |
|---|---|
|
Grade III rabies exposure cohort
Adults (≥18 years) who sustained verified WHO Grade III rabies exposure from a traceable dog involved in a tracked multi-person attack incident, and who initiated standardized PEP within the protocolized window.
|
Standard-of-care wound debridement, followed by anatomical infiltration of zamerovimab/mazorelvimab injection at a single dose of 0.3 mg/kg around the wound sites on Day 0, combined with a standard intramuscular rabies vaccine regimen.
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
3-month rabies-free survival rate
Délai: 90 days (±3 days) post-enrollment
|
The proportion of participants alive and free of clinical rabies symptoms at 90 days following post-exposure prophylaxis (PEP) initiation.
|
90 days (±3 days) post-enrollment
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
1-year rabies-free survival rate
Délai: 365 days (±7 days) post-enrollment
|
The proportion of participants alive and free of clinical rabies symptoms at 1 year following post-exposure prophylaxis (PEP) initiation.
|
365 days (±7 days) post-enrollment
|
Collaborateurs et enquêteurs
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Réel)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- SYN023-RWE-001
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Informations sur les médicaments et les dispositifs, documents d'étude
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