Immunogenicity Study of a Reduced (4-dose) Vaccine Schedule and Rabies Immunoglobulins

NCT ID: NCT01641315

Last Updated: 2018-04-06

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

75 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-09-30

Study Completion Date

2018-04-30

Brief Summary

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Reduced 4-dose intramuscular rabies vaccination schedule was announced by US-ACIP and WHO to be one of the post-exposure prophylaxis regimens. However, concurrent usage of this regimen with rabies immunoglobulin have never been studied in the aspect that the immunity level would above the protective level required by WHO (0.5 IU/ml) for at least a year period. This study would access this subject.

Detailed Description

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* Controlled trial study
* All 75 volunteers who had never had rabies immunization would be enrolled and designated into 3 groups.

group 1 : 25 Healthy volunteers age 18 - 60 yr who were attacked by mammals, possible exposed to rabies and had WHO category III exposure, all receive standard post - exposure rabies treatment with 5-dose intramuscular rabies vaccine on day 0,3,7,14,28 and 40 IU/kg of equine rabies immune globulin (ERIG).

group 2 : 25 Healthy volunteers age 18 - 60 yr receive 4-dose intramuscular rabies vaccine on day 0,3,7,14 and 40 IU/kg of equine rabies immune globulin (ERIG).

group 3 : 25 Healthy volunteers age 18 - 60 yr receive 4-dose intramuscular rabies vaccine on day 0,3,7,28 and 40 IU/kg of equine rabies immune globulin (ERIG).

5 cc - Blood would be drawn from all volunteers before vaccination and on day 14, 28, 90 and 360 for rabies neutralizing antibody titers (RNab).

The GMTs of RNab among both groups would be analyzed and compared.

Conditions

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Rabies

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Rabies vaccine, IM day 0,3,7,28 with RIG

Healthy volunteers received rabies vaccination intramuscularly on day 0,3,7 and 28 with equine rabies immunoglobulin 40 IU/Kg on day 0.

Group Type EXPERIMENTAL

rabies vaccine

Intervention Type BIOLOGICAL

Group 1: rabies vaccination was given to rabies exposed victims on day 0,3,7,14,28 with ERIG on day 0.

Group 2: rabies vaccination was given to healthy volunteers on day 0,3,7,14 with ERIG on day 0.

Group 3: rabies vaccination was given to healthy volunteers on day 0,3,7,28 with ERIG on day 0.

Rabies vaccine, IM day 0,3,7,14 with RIG

Healthy volunteers received rabies vaccination intramuscularly on day 0,3,7 and 14 with equine rabies immunoglobulin 40 IU/Kg on day 0.

Group Type EXPERIMENTAL

rabies vaccine

Intervention Type BIOLOGICAL

Group 1: rabies vaccination was given to rabies exposed victims on day 0,3,7,14,28 with ERIG on day 0.

Group 2: rabies vaccination was given to healthy volunteers on day 0,3,7,14 with ERIG on day 0.

Group 3: rabies vaccination was given to healthy volunteers on day 0,3,7,28 with ERIG on day 0.

Rabies vaccine, IM Day 0,3,7,14,28 with RIG

Rabies exposed victims receive rabies vaccination intramuscularly on Day 0,3,7,14,28 with equine rabies immunoglobulin 40 IU/Kg on day 0

Group Type ACTIVE_COMPARATOR

rabies vaccine

Intervention Type BIOLOGICAL

Group 1: rabies vaccination was given to rabies exposed victims on day 0,3,7,14,28 with ERIG on day 0.

Group 2: rabies vaccination was given to healthy volunteers on day 0,3,7,14 with ERIG on day 0.

Group 3: rabies vaccination was given to healthy volunteers on day 0,3,7,28 with ERIG on day 0.

Interventions

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rabies vaccine

Group 1: rabies vaccination was given to rabies exposed victims on day 0,3,7,14,28 with ERIG on day 0.

Group 2: rabies vaccination was given to healthy volunteers on day 0,3,7,14 with ERIG on day 0.

Group 3: rabies vaccination was given to healthy volunteers on day 0,3,7,28 with ERIG on day 0.

Intervention Type BIOLOGICAL

Other Intervention Names

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Equine rabies immunoglobulin produced by Thai Red Cross

Eligibility Criteria

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Inclusion Criteria

* healthy volunteers age 18-60 years.

Exclusion Criteria

* received prior rabies immunization
* pregnancy
* immunocompromised conditions
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Queen Saovabha Memorial Institute

OTHER

Sponsor Role lead

Responsible Party

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Suda Sibunruang

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Suda Sibunruang, MD

Role: PRINCIPAL_INVESTIGATOR

Queen Saovabha Memorial Institute

Locations

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Queen Saovabha Memorial Institute

Bangkok, , Thailand

Site Status

Countries

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Thailand

Other Identifiers

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RC5502

Identifier Type: -

Identifier Source: org_study_id

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