NCT05839301

Brief Summary

The goal of this clinical trial is to evaluate the lot-to-lot consistency, immunogenicity, and safety of live attenuated varicella vaccine manufactured by Beijing Institute of Biological Products Co., Ltd in healthy children.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
1,200

participants targeted

Target at P75+ for phase_3

Timeline
Completed

Started Apr 2023

Shorter than P25 for phase_3

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 20, 2023

Completed
7 days until next milestone

Study Start

First participant enrolled

April 27, 2023

Completed
6 days until next milestone

First Posted

Study publicly available on registry

May 3, 2023

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 30, 2023

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2024

Completed
Last Updated

June 18, 2023

Status Verified

June 1, 2023

Enrollment Period

3 months

First QC Date

April 20, 2023

Last Update Submit

June 15, 2023

Conditions

Keywords

varicella vaccinesafetyimmunogenicitylot-to-lot consistency

Outcome Measures

Primary Outcomes (1)

  • Geometric mean titers (GMT) of anti-VZV neutralizing antibodies

    Geometric mean titers (GMT) of anti-VZV neutralizing antibodies 30 days after vaccination in the negative population before immunization

    30 days after vaccination

Secondary Outcomes (4)

  • Positive conversion rate and geometric mean fold increase (GMFI) of anti-VZV neutralizing antibodies

    30 days after vaccination

  • Positive conversion rate, GMT, and GMFI of anti-VZV neutralizing antibodies

    30 days after vaccination

  • The incidences of adverse events (AEs)

    30 days after vaccination

  • The incidences of serious adverse events (SAEs) and Adverse Event of Special Interest(AESI)

    6 months after vaccination

Study Arms (3)

Experimental Group1

EXPERIMENTAL

Single subcutaneous injection of the investigational vaccine (0.5ml)

Biological: Investigational live attenuated varicella vaccine (lot 1)

Experimental Group2

EXPERIMENTAL

Single subcutaneous injection of the investigational vaccine (0.5ml)

Biological: Investigational live attenuated varicella vaccine (lot 2)

Experimental Group3

EXPERIMENTAL

Single subcutaneous injection of the investigational vaccine (0.5ml)

Biological: Investigational live attenuated varicella vaccine (lot 3)

Interventions

0.5ml/vial

Experimental Group1

0.5ml/vial

Experimental Group2

0.5ml/vial

Experimental Group3

Eligibility Criteria

Age1 Year - 12 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Age 1 to 12 years on the day of enrollment ,male or female, and able to provide legal identity certificate.
  • Subjects and/or guardians have the ability to understand the study requirements and process, agree to participate in the clinical trial and sign the informed consent form.
  • Axillary temperature ≤ 37.0 ° C on the day of enrollment.

You may not qualify if:

  • Previous vaccination against varicella (eg, varicella vaccine, measles + varicella vaccine).
  • History of varicella or herpes zoster infection, or exposure to varicella/herpes zoster within 30 days of enrollment or suspected varicella/herpes zoster;
  • Current use of salicylates (including salicylic acid, aspirin, diflunisal, p-aminosalicylic acid (sodium), salsalsalate, benorilate, etc.), or planned long-term use during the study.
  • Febrile illness (axillary temperature ≥ 38.5 ° C) or use of antipyretic, analgesic, and anti-allergic drugs (eg, acetaminophen, ibuprofen, aspirin, loratadine, cetirizine, etc.) 3 days before vaccination.
  • History of allergy to vaccine ingredients and excipients or severe drug allergy, such as anaphylactic shock, allergic laryngeal edema, Henoch-Schonlein purpura, thrombocytopenic purpura, local allergic necrosis reaction (Arthus reaction), severe urticaria.
  • History of epilepsy, convulsions, or convulsions, or a family history of psychosis.
  • Impaired immune function or has been diagnosed with congenital or acquired immunodeficiency, HIV infection, lymphoma, leukemia, systemic lupus erythematosus, rheumatoid arthritis, juvenile rheumatoid arthritis, inflammatory bowel disease, or other autoimmune diseases.
  • Patients suffering from serious congenital malformations, genetic diseases, serious cardiovascular diseases, serious liver/kidney diseases, diabetes with complications, malignant tumors, severe malnutrition.
  • Immunosuppressant therapy such as chronic oral or injectable glucocorticoid therapy (≥ 14 days at doses ≥ 2 mg/kg/day or ≥ 20 mg/day prednisone or equivalent prednisone dose) within 3 months prior to administration of trial vaccine or planned 30 days following administration, but not limited by topical use (eg, ointment, eye drops, inhalers, or nasal sprays).
  • Receiving blood/blood-related products or immunoglobulins 3 months before vaccination or planning to use such products 30 days after vaccination.
  • Vaccination with a live attenuated vaccine within 30 days or any vaccine within 14 days prior to vaccination.
  • Absence of spleen or splenectomy due to any condition such as splenectomy.
  • Patients with a history of thrombocytopenia or other coagulation disorders, which may cause contraindications to subcutaneous injection.
  • Infectious, suppurative and allergic skin diseases.
  • Participating in other investigational or non-registered product (drug, vaccine or device, etc.) clinical trials, or planning to participate in other clinical trials before the end of this clinical trial.
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Xinyi Center for Disease Control and Prevention

Xuzhou, Jiangsu, 221600, China

Location

MeSH Terms

Conditions

Chickenpox

Condition Hierarchy (Ancestors)

Varicella Zoster Virus InfectionHerpesviridae InfectionsDNA Virus InfectionsVirus DiseasesInfections

Study Officials

  • Hongxing Pan

    Jiangsu Province Centers for Disease Control and Prevention

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 20, 2023

First Posted

May 3, 2023

Study Start

April 27, 2023

Primary Completion

July 30, 2023

Study Completion

April 30, 2024

Last Updated

June 18, 2023

Record last verified: 2023-06

Data Sharing

IPD Sharing
Will not share

Locations