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Clinical Trials/NCT01982409
NCT01982409UnknownPhase 4

A Study of Immune Persistence After Inoculated With One-dose Freeze-dried Live Attenuated Varicella Vaccine in Children Aged 1-6 Years

Changchun Changsheng Life Science and Technology Co., Ltd.1 site in 1 country350 target enrollmentStarted: June 1, 2013Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Phase 4
Enrollment
350
Locations
1
Primary Endpoint
Immune protective effect and persistence after inoculated with live attenuated varicella vaccine

Study Overview

Brief Summary

The purpose of this study is to observe the persistence of protection, duration of protection, safety and breakthrough infection rates afforded by live attenuated varicella vaccine in children over a 5-year period.

Study Design

Study Type
Interventional
Allocation
Na
Intervention Model
Single Group
Primary Purpose
Prevention
Masking
None

Eligibility Criteria

Ages
1 Year to 6 Years (Child)
Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • •Participant are healthy children aged 1-6 years, who has inquired for medical history and physical examination, and met the requirement of the vaccine trial
  • •Parent/legal acceptable representative is willing and able to understand the protocol requirements and provide informed consent
  • •Subject and parent/guardian able to attend all scheduled visits and comply with all trial procedures
  • •Body temperature ≤37℃

Exclusion Criteria

  • •Participant with previous history of chickenpox or zoster
  • •Receipt of varicella vaccine
  • •Reported the family history of allergies, convulsions, epilepsy and mental illness
  • •Known allergy to any constituent of the vaccine
  • •Known serve illness, in a fever, acute infection and chronic disease activity
  • •Receipt of steroid
  • •Reported the history of thrombocytopenia or other coagulation disorders, which may cause
  • •Known or suspected impairment of immunologic function, or receipt of immunosuppressive therapy or immunoglobulin since birth
  • •Known congenital malformation, developmental disorders and severe chronic disease (e.g. Down's syndrome, diabetes, sickle cell anemia and neurologic disorders)
  • •Known dermatopathy with allergy, herpes, fester, and fungal infection
  • •Receipt of whole blood, blood plasma or immunoglobulin in the 3 months preceding the trial vaccination
  • •Reported the history of acute illness had need systemic antibiotics or anti-viral treatment of infections in the 7 days preceding the trial vaccination
  • •Participant with fever(temperature≥ 38℃) in the days
  • •Any condition, which, in the opinion of the investigator, would pose a health risk to the subject

Arms & Interventions

Live Attenuated Varicella Vaccine

Experimental

use the arm flank deltoid muscle adheres to stick cohere place the skin after 75% ethyl alcohol disinfection the hypodermic injection

Intervention: Live Attenuated Varicella Vaccine (Biological)

Outcomes

Primary Outcomes

Immune protective effect and persistence after inoculated with live attenuated varicella vaccine

Time Frame: Before vaccination, six weeks and every year in 5 years study period after inoculation of the live varicella vaccine

Clinical subjects are drawn 3ml's vein blood,respectively before vaccination, six weeks and every year in 5 years study period after inoculation of the live varicella vaccine. FAMA methods are used to test antibody rate of pox virus.

Secondary Outcomes

  • Breakthrough rate, duration and severity of varicella in vaccinated children(5 years period)
  • Occurrence of adverse events(Up to 4 weeks after vaccination)

Investigators

Sponsor Class
Industry
Responsible Party
Sponsor

Study Sites (1)

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