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

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.

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00694460
Enrollment
200
Registered
2008-06-10
Start date
2002-08-31
Completion date
2004-09-30
Last updated
2008-06-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Japanese Encephalitis, Pre-Exposure Prophylaxis, Rabies

Keywords

rabies vaccination, pre-exposure prophylaxis, rabies virus neutralizing antibody

Brief summary

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.

Interventions

BIOLOGICALThree 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)

BIOLOGICALThree 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)

BIOLOGICALThree 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)

BIOLOGICALTwo 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)

BIOLOGICALTwo 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)

Sponsors

Novartis Vaccines
CollaboratorINDUSTRY
Novartis
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
12 Months to 18 Months
Healthy volunteers
Yes

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

Design outcomes

Primary

MeasureTime frame
Rabies virus neutralizing antibody concentrations2 years

Secondary

MeasureTime frame
Japanese encephalitis virus neutralizing antibody titers2 years

Countries

Thailand

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026