Immunogenicity and Safety of Varicella Vaccine, Live in Healthy Vietnamese Children

Trial statusNot yet recruiting
Trial phasePhase 3
Trial typeInterventional
Biological sexAll
Age1-12
SponsorSinovac (Dalian) Vaccine Technology Co., Ltd.

About this trial

This is a single armed, Phase 3 study to assess the immunogenicity and safety of the varicella vaccine manufactured by Sinovac. A total of 300 healthy participants aged 1-12 years will be enrolled. All participants will receive a single dose of varicella vaccine manufactured by Sinovac.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Healthy children aged 1-12 years;

Participants aged 1 year old: no vaccination history with any varicella containing vaccine;

Participants aged 2~12 years old: no vaccination history with any varicella containing vaccine, or have received 1 dose of varicella vaccine at least 3 months before enrollment;

Participants and/or their legal guardians are able to understand and sign the informed consent/assent voluntarily;

Disqualifiers

Prior history of VZV infection;

Have been exposed to VZV at home, day care, school, etc. within 4 weeks before enrollment;

Known allergy to vaccines or vaccine ingredients, or serious adverse reactions to vaccines, such as urticaria, dyspnea, angioneurotic edema;

Autoimmune diseases, immunodeficiency diseases (including but not limited to systemic lupus erythematosus, ankylosing spondylitis, autoimmune thyroid diseases, asplenia, functional asplenia, and HIV infection);

Trial design

Design model

Parallel

Treatments tested in this trial

  • Varicella Vaccine

    Biological/Vaccine

    Varicella vaccine manufactured by Sinovac

Treatment groups

300 Participants
are divided into 2 treatment groups
Group A: No vaccination history groupExperimental treatment 1 intervention
Group B: Vaccination history groupExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

The seroresponse rate of varicella-zoster virus (VZV) antibodies among susceptible population without varicella immunization history

Time frame
42 days after vaccination

Secondary outcomes

1

The Geometric Mean Concentration(GMC) of VZV antibodies among susceptible population without varicella immunization history

Time frame
42 days after vaccination
2

The Geometric Mean Concentration(GMC) of VZV antibodies in total population

Time frame
42 days after vaccination
3

The seropositive rate of VZV antibodies in total population

Time frame
42 days after vaccination
4

The geometric mean fold rise (GMFR) of VZV antibodies in total population

Time frame
42 days after vaccination

Other outcomes

Sponsors and contacts

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This trial is not recruiting at the moment. You can still explore other options: