Rabies Immunization Concomitant With JEV in Children

Rabies Clinical Trial

Official title:

A Three-Year Clinical Study on Immunogenicity, Safety and Booster Response of Purified Chick Embryo Cell Rabies Vaccine (Pcecv) Administered Intramuscularly or Intradermally to 12- to 18-Month-Old Thai Children Concomitantly With Japanese Encephalitis Vaccine

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00703521
• Other study ID #: M49P2
• Status: Completed
• Phase: Phase 2
• First received: June 20, 2008
• Last updated: October 23, 2008
• Start date: August 2002
• Est. completion date: September 2005

Study information

• Verified date: June 2008
• Source: Mahidol University
• Contact: n/a
• Is FDA regulated: No
• Health authority: Thailand: Food and Drug Administration
• Study type: Interventional

Clinical Trial Summary

Background. The World Health Organization recommends pre-exposure vaccination (PreP) to protect children living in canine rabies endemic countries. Including PreP in national childhood immunization programs (EPI) is a viable option.

Methods. In an open-label phase II clinical trial, 200 healthy toddlers were randomized to receive Purified Chick Embryo Cell Vaccine (PCECV) in a 3-dose Full-IM (1mL), Half-IM (0.5mL), 3-ID (0.1mL), or a 2-dose 2-ID (0.1mL) regimen, all in combination with two doses of Japanese Encephalitis (JEV), or JEV alone. One booster dose of PCECV (IM or ID) and JEV, or JEV alone was administered concomitantly one year after primary vaccination. Safety was evaluated after each injection. Blood was drawn on days 0 and 49, one year later prior to booster and on days 7 and 28 post-booster, and at two and three years post primary vaccination. All sera were analyzed for rabies and JE virus neutralizing antibodies (RVNA, JEVNA).

Recruitment information / eligibility

• Status: Completed
• Enrollment: 200
• Est. completion date: September 2005
• Est. primary completion date: October 2002
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Both
• Age group: 12 Months to 18 Months

Eligibility

Inclusion Criteria:

• Male and female 12-18 months old toddlers will be included in the study if they;

• are in good health at time of entry into the study as determined by medical history, physical examination and clinical judgment of the investigator;

• 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 degree C (axillary) or/and significant acute or chronic infection requiring systemic antibiotic or antiviral therapy within the past 7 days before enrollment;

• being under treatment with parenteral, oral and/or inhaled 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;

• 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 Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention

Related Conditions & MeSH terms

• Rabies

Intervention

Biological:
• Rabies vaccine
1.0 mL IM day 0,7,28 and 1 year

Locations

Country	Name	City	State
n/a

Sponsors (2)

Lead Sponsor	Collaborator
Mahidol University	Chiron company: Clinical Research and Medical Affairs