NCT02526550

Brief Summary

This study was undertaken to assess the immunogenicity and safety of a booster dose of a live attenuated chimeric Japanese Encephalitis vaccine (JE-CV) after primary vaccination with SA14-14-2 in Thai children aged 1 to \<5 years. In addition, to assess the impact of the duration interval after primary vaccination on subsequent booster response.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
50

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started Jun 2014

Shorter than P25 for phase_4

Status
completed

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

Study Start

First participant enrolled

June 1, 2014

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2014

Completed
1.1 years until next milestone

First Submitted

Initial submission to the registry

August 9, 2015

Completed
9 days until next milestone

First Posted

Study publicly available on registry

August 18, 2015

Completed
1.3 years until next milestone

Results Posted

Study results publicly available

December 7, 2016

Completed
Last Updated

December 7, 2016

Status Verified

October 1, 2016

Enrollment Period

1 month

First QC Date

August 9, 2015

Results QC Date

January 12, 2016

Last Update Submit

October 13, 2016

Conditions

Keywords

Live attenuated Japanese Encephalitis vaccineIMOJEVCD.JEVAXBoosterThai childrenImmunogenicitySafetyInterchangeabilityHepatitis A vaccineVaccination or Other Immunization Procedure

Outcome Measures

Primary Outcomes (1)

  • Change From Baseline in Geometric Mean Titers Against the Japanese Encephalitis Chimeric Virus at 28 Days Post Vaccination

    Geometric mean titers were assessed using a Japanese encephalitis chimeric virus (JE-CV) 50% Plaque Reduction Neutralization Test (PRNT50).

    Day 0 (Baseline) and Day 28 (post-vaccination)

Secondary Outcomes (2)

  • Change From Baseline in Number of Participants With Seroprotection Against Japanese Encephalitis Chimeric Virus at 28 Days Post Vaccination

    Day 0 (Baseline) and Day 28 (post-vaccination)

  • Percentage of Number of Participants Reporting Immediate Reactions, Solicited Injection Site and Systemic Reactions, Unsolicited Adverse Events, and Serious Adverse Events Following Vaccination With IMOJEV™

    Up to 28 days post booster vaccination

Study Arms (1)

Imojev

EXPERIMENTAL

Live attenuated chimeric Japanese Encephalitis vaccine, 0.5 mL dose containing ≥ 4.0 log10 plaque forming units (PFU) administered via the subcutaneous route into the left thigh and Simultaneous administration of Inactivated Hepatitis A vaccine, 0.5 mL liquid dose for intramuscular injection administered via the intramuscular route into the right thigh

Biological: Live attenuated chimeric Japanese Encephalitis vaccineBiological: Inactivated Hepatitis A vaccine

Interventions

0.5 mL dose containing ≥ 4.0 log10 plaque forming units (PFU) administered via the subcutaneous route into the left thigh

Also known as: Imojev
Imojev

0.5 mL liquid dose for intramuscular injection administered via the intramuscular route into the right thigh

Also known as: Havrix
Imojev

Eligibility Criteria

Age1 Year - 5 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • History of received 1 dose of CD.JEVAX at 9-15 months prior to enrollment
  • Provision of informed consent by the parent(s) or legal guardian(s)

You may not qualify if:

  • Receipt of blood or blood products in the past 3 months
  • Acute febrile illness on the day of vaccination (Body Temperature ≥ 38 ◦C)
  • Previous receipt of 2 doses of any vaccine against JE virus
  • Known hypersensitivity to any of the vaccine components
  • Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination
  • Planned receipt of any live attenuated vaccine within 4 weeks following the trial vaccination

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Sricharoenchai S, Lapphra K, Chuenkitmongkol S, Phongsamart W, Bouckenooghe A, Wittawatmongkol O, Rungmaitree S, Chokephaibulkit K. Immunogenicity of a Live Attenuated Chimeric Japanese Encephalitis Vaccine as a Booster Dose After Primary Vaccination With Live Attenuated SA14-14-2 Vaccine: A Phase IV Study in Thai Children. Pediatr Infect Dis J. 2017 Feb;36(2):e45-e47. doi: 10.1097/INF.0000000000001395.

MeSH Terms

Conditions

EncephalitisHepatitis

Interventions

Hepatitis A Vaccines

Condition Hierarchy (Ancestors)

Brain DiseasesCentral Nervous System DiseasesNervous System DiseasesNeuroinflammatory DiseasesLiver DiseasesDigestive System Diseases

Intervention Hierarchy (Ancestors)

Viral Hepatitis VaccinesViral VaccinesVaccinesBiological ProductsComplex Mixtures

Results Point of Contact

Title
Prof.Kulkanya Chokephaibulkit
Organization
Siriraj Hospital

Study Officials

  • Kulkanya Chokephaibulkit, Professor

    Siriraj Hospital

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

August 9, 2015

First Posted

August 18, 2015

Study Start

June 1, 2014

Primary Completion

July 1, 2014

Study Completion

July 1, 2014

Last Updated

December 7, 2016

Results First Posted

December 7, 2016

Record last verified: 2016-10

Data Sharing

IPD Sharing
Will not share

The submission of study review and results to a peer-review journal is ongoing.