Evalution of Immunogenicity, Safety and Booster Response of a Rabies Vaccine Administered Concomitantly With Japanese Encephalitis Vaccine in Toddlers

June 9, 2008 updated by: Novartis

A Phase II, Pilot, Randomized, Open-Label, Single-Center Study to Evaluate Immunogenicity, Safety and Booster Response of 3 Full Intramuscular Doses Versus 3 Half Intramuscular Doses Versus 3 Intradermal Doses Versus 2 Intradermal Doses of PCEC Rabies Vaccine Administered Concomitantly With Japanese Encephalitis Vaccine as a Pre-Exposure Regimen in 12 to 18 Months Old Toddlers in Thailand.

This study evaluated the safety and immunogenicity of rabies vaccine and Japanese encephalitis vaccine in toddlers. All children developed adequate immune responses. Rabies vaccination with PCECV did not interfere with the antibody response to Japanese encephalitis vaccine. The rabies vaccine PCECV and Japanese encephalitis vaccine are safe and immunogenic when administered concomitantly to toddlers.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

200

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Thailand
      • Bangkok, Thailand, 10400
        • Tropical Medicine, Mahidol University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

1 year to 1 year (Child)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male and female 12-18 months old toddlers if they
  • are in good health at time of entry into the study
  • are available for all the visits scheduled in the study
  • have been granted a written informed consent, signed by their parents

Exclusion Criteria:

  • a history of rabies immunization
  • a history of Japanese encephalitis immunization or disease
  • a significant acute or chronic infectious disease at the time of enrollment
  • fever ≥ 38.0°C (axillary) or/and significant acute or chronic infection requiring antibiotic or antiviral therapy within the past 7 days before enrollment
  • being under treatment with corticosteroids, immunosuppressive drugs or other specific anti-inflammatory drugs or having taken chloroquine during the two months period before enrollment
  • administration of any vaccine within the past 14 days before enrollment
  • known immunodeficiency or an autoimmune disease
  • history of allergy to eggs, egg products
  • known hypersensitivity to neomycin, tetracycline, amphotericin-B
  • planned surgery during the study period
  • being enrolled in any other investigational trial contemporaneously
  • the family plans to leave the area of the study site before the end of study period
  • history of febrile convulsions
  • history of wheezing

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
Biological: Three 1 mL doses of Rabies vaccine and two JE vaccine
Vaccination with purified chick embryo cell rabies vaccine 1.0 mL intramuscularly on Day 0, Day 7 and Day 28 (a total of 3 doses) and Beijing 1 strain of inactivated, lyophilized Japanese Encephalitis vaccine 0.25 mL subcutaneously on Day 0 and Day 7 (a total of 2 doses)
Experimental: 2
Biological: Three 0.5 mL doses of Rabies vaccine and two JE vaccine
Vaccination with purified chick embryo cell rabies vaccine 0.5 mL intramuscularly on Day 0, Day 7 and Day 28 (a total of 3 doses) and Beijing 1 strain of inactivated, lyophilized Japanese Encephalitis vaccine 0.25 mL subcutaneously on Day 0 and Day 7 (a total of 2 doses)
Experimental: 3
Biological: Three 0.1mL doses of Rabies Vaccine and two JE vaccine
Vaccination with purified chick embryo cell rabies vaccine 0.1 mL intradermally at one site on Day 0, Day 7 and Day 28 (a total of 3 doses) and Beijing 1 strain of inactivated, lyophilized Japanese Encephalitis vaccine 0.25 mL subcutaneously on Day 0 and Day 7 (a total of 2 doses)
Experimental: 4
Biological: Two 0.1mL doses of Rabies vaccine and two JE vaccine
Vaccination with purified chick embryo cell rabies vaccine 0.1 mL intradermally at one site on Day 0 and Day 28 (a total of 2 doses) and Beijing 1 strain of inactivated, lyophilized Japanese Encephalitis vaccine 0.25 mL subcutaneously on Day 0 and Day 7 (a total of 2 doses)
Active Comparator: 5
Biological: Two doses of JE vaccine
Vaccination with Beijing 1 strain of inactivated, lyophilized Japanese Encephalitis vaccine 0.25 mL only subcutaneously on Day 0 and Day 7 (a total of 2 doses)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Rabies virus neutralizing antibody concentrations
Time Frame: 2 years
2 years

Secondary Outcome Measures

Outcome Measure
Time Frame
Japanese encephalitis virus neutralizing antibody titers
Time Frame: 2 years
2 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Novartis

Collaborators

Novartis Vaccines

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2002

Primary Completion (Actual)

August 1, 2004

Study Completion (Actual)

September 1, 2004

Study Registration Dates

First Submitted

May 30, 2008

First Submitted That Met QC Criteria

June 9, 2008

First Posted (Estimate)

June 10, 2008

Study Record Updates

Last Update Posted (Estimate)

June 10, 2008

Last Update Submitted That Met QC Criteria

June 9, 2008

Last Verified

June 1, 2008

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • M49P2

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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