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Purified Vero Rabies Vaccine-Serum Free Compared to Human Diploid Cell Vaccine in a Pre-exposure Prophylaxis Regimen

Primary Purpose

Rabies

Status
Completed
Phase
Phase 2
Locations
Philippines
Study Type
Interventional
Intervention
Purified Vero Rabies Vaccine Serum Free (VRVg)
Imovax® Rabies: Human Diploid Cell Vaccine (HDCV),
Sponsored by
Sanofi Pasteur, a Sanofi Company
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Rabies focused on measuring Rabies, Purified Vero Rabies Vaccine - Serum Free (VRVg), Imovax® rabies, Human Diploid Cell Vaccine

Eligibility Criteria

2 Years - 17 Years (Child)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • Aged 2 to 17 years on the day of inclusion
  • Informed consent form has been signed and dated by the parent(s) (and subject, if applicable by local regulations), or another legally acceptable representative and by an independent witness, as applicable, and the assent form has been signed and dated by the subject (if applicable by the local Ethics Committee or country regulations)
  • Subject and parent/legally acceptable representative are able to attend all scheduled visits and to comply with all trial procedures.

Exclusion Criteria:

  • Subject is pregnant, or lactating, or of childbearing potential (to be considered of non-childbearing potential, a female must be pre-menarche, surgically sterile, or using an effective method of contraception or abstinence from at least 4 weeks prior to the first vaccination and until at least 4 weeks after the last vaccination)
  • Participation at the time of study enrollment (or in the 4 weeks preceding the first trial vaccination) or planned participation during the present trial period in another clinical trial investigating a vaccine, drug, medical device, or medical procedure
  • Receipt of any vaccine in the 4 weeks preceding the first trial vaccination or planned receipt of any vaccine in the 4 weeks following any trial vaccination
  • Any previous vaccination against rabies (in pre- or post-exposure regimen) with either the trial vaccine or another vaccine
  • Bite by a potentially rabid animal in the previous 6 months without post-exposure prophylaxis
  • Receipt of immune globulins, blood or blood-derived products in the past 3 months
  • Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy, within the preceding 6 months; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months)
  • Self-reported seropositivity for Human Immunodeficiency Virus (HIV)
  • Known systemic hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to a vaccine containing any of the same substances
  • Self-reported thrombocytopenia, contraindicating intramuscular vaccination
  • Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating intramuscular vaccination
  • Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily
  • Current alcohol abuse or drug addiction
  • Chronic illness that, in the opinion of the investigator, is at a stage where it might interfere with trial conduct or completion
  • Moderate or severe acute illness/infection (according to investigator judgment) on the day of vaccination or febrile illness (temperature ≥ 38.0°C). A prospective subject should not be included in the study until the condition has resolved or the febrile event has subsided
  • Identified as an Investigator or employee of the Investigator or study center with direct involvement in the proposed study, or identified as an immediate family member (i.e., spouse, natural or adopted child) of the Investigator or employee with direct involvement in the proposed study
  • History of Guillain-Barré syndrome.

Sites / Locations

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Active Comparator

Arm Label

VRVg Group

Imovax® Rabies Group

Arm Description

Participants will receive receive 3 vaccinations of Purified Vero Rabies Vaccine Serum Free (VRVg)

Participants will receive receive 3 vaccinations of Human Diploid Cell Vaccine (HDCV), Imovax® Rabies

Outcomes

Primary Outcome Measures

Number Subjects with rabies virus neutralizing antibody (RVNA) titer ≥ 0.5 IU/mL as measured by rapid fluorescent focus inhibition test (RFFIT)
Rabies virus neutralizing antibody will be measured by rapid fluorescent focus inhibition test (RFFIT)

Secondary Outcome Measures

Number of Participants Reporting Solicited Injection Site Reactions, Solicited Systemic Reactions, Unsolicited Systemic Reactions, and Serious Adverse Events Occurring Throughout the Trial
Solicited injection site reactions: pain, erythema, and swelling. Solicited systemic reactions: fever (temperature), headache, malaise, and myalgia
Summary Individual RVNA titer ratio (Day 42/Day 0) following vaccination with either Purified Vero Rabies Vaccine Serum Free (VRVg) or Human Diploid Cell Vaccine, Imovax® Rabies
Rabies virus neutralizing antibody will be measured by rapid fluorescent focus inhibition test (RFFIT)

Full Information

First Posted
August 22, 2013
Last Updated
April 24, 2017
Sponsor
Sanofi Pasteur, a Sanofi Company
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1. Study Identification

Unique Protocol Identification Number
NCT01930357
Brief Title
Purified Vero Rabies Vaccine-Serum Free Compared to Human Diploid Cell Vaccine in a Pre-exposure Prophylaxis Regimen
Official Title
Immunogenicity and Safety of the Purified Vero Rabies Vaccine - Serum Free (VRVg) in Comparison With the Human Diploid Cell Vaccine, Imovax® Rabies in a Pre-exposure Prophylaxis Regimen in Healthy Children and Adolescents Aged 2 to 17 Years
Study Type
Interventional

2. Study Status

Record Verification Date
April 2017
Overall Recruitment Status
Completed
Study Start Date
September 2013 (undefined)
Primary Completion Date
August 2014 (Actual)
Study Completion Date
June 2015 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Sanofi Pasteur, a Sanofi Company

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
The aim of the study is to document immunogenicity and safety of VRVg in a pre-exposure regimen in healthy children and adolescents aged 2 to 17 years. Primary Objectives: To demonstrate that VRVg is non-inferior to Imovax® Rabies in terms of proportion of subjects achieving a rabies virus neutralizing antibody (RVNA) titer ≥ 0.5 international units (IU)/mL at D42, i.e. 14 days after the last vaccination. To describe if at least 99% of subjects achieve an RVNA titer ≥ 0.5 IU/mL at D42 with a lower bound of the 95% confidence interval (CI) of at least 97%, in the VRVg group. Secondary Objectives: To assess the clinical safety of each vaccine after each vaccine injection when administered in a pre-exposure schedule. To describe the immune response induced by each vaccine 14 days after the last vaccination, i.e. at D42, and 6 months after the first vaccination To describe the geometric mean titer ratio between the two vaccine groups at D42, i.e. 14 days after the last vaccination.
Detailed Description
Participants will receive a total of three vaccinations, one each at Day 0, Day 7, and Day 28, respectively, and will be assessment for immune response to rabies vaccine before the first injection (baseline titer), at Day 42, and at Month 6. Safety will be assessed in all participants up to 28 days after each injection. Serious adverse events and adverse events of special interest (AESIs) will be collected up to 6 months after the last injection.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Rabies
Keywords
Rabies, Purified Vero Rabies Vaccine - Serum Free (VRVg), Imovax® rabies, Human Diploid Cell Vaccine

7. Study Design

Primary Purpose
Prevention
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
Outcomes Assessor
Allocation
Randomized
Enrollment
342 (Actual)

8. Arms, Groups, and Interventions

Arm Title
VRVg Group
Arm Type
Experimental
Arm Description
Participants will receive receive 3 vaccinations of Purified Vero Rabies Vaccine Serum Free (VRVg)
Arm Title
Imovax® Rabies Group
Arm Type
Active Comparator
Arm Description
Participants will receive receive 3 vaccinations of Human Diploid Cell Vaccine (HDCV), Imovax® Rabies
Intervention Type
Biological
Intervention Name(s)
Purified Vero Rabies Vaccine Serum Free (VRVg)
Intervention Description
0.5 mL, Intramuscular (Day 0, Day 7 and Day 28).
Intervention Type
Biological
Intervention Name(s)
Imovax® Rabies: Human Diploid Cell Vaccine (HDCV),
Other Intervention Name(s)
Imovax® Rabies
Intervention Description
0.5 mL, Intramuscular (Day 0, Day 7 and Day 28).
Primary Outcome Measure Information:
Title
Number Subjects with rabies virus neutralizing antibody (RVNA) titer ≥ 0.5 IU/mL as measured by rapid fluorescent focus inhibition test (RFFIT)
Description
Rabies virus neutralizing antibody will be measured by rapid fluorescent focus inhibition test (RFFIT)
Time Frame
Day 42
Secondary Outcome Measure Information:
Title
Number of Participants Reporting Solicited Injection Site Reactions, Solicited Systemic Reactions, Unsolicited Systemic Reactions, and Serious Adverse Events Occurring Throughout the Trial
Description
Solicited injection site reactions: pain, erythema, and swelling. Solicited systemic reactions: fever (temperature), headache, malaise, and myalgia
Time Frame
Day 0 up to 6 months post vaccination
Title
Summary Individual RVNA titer ratio (Day 42/Day 0) following vaccination with either Purified Vero Rabies Vaccine Serum Free (VRVg) or Human Diploid Cell Vaccine, Imovax® Rabies
Description
Rabies virus neutralizing antibody will be measured by rapid fluorescent focus inhibition test (RFFIT)
Time Frame
Day 0 and Day 42

10. Eligibility

Sex
All
Minimum Age & Unit of Time
2 Years
Maximum Age & Unit of Time
17 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Aged 2 to 17 years on the day of inclusion Informed consent form has been signed and dated by the parent(s) (and subject, if applicable by local regulations), or another legally acceptable representative and by an independent witness, as applicable, and the assent form has been signed and dated by the subject (if applicable by the local Ethics Committee or country regulations) Subject and parent/legally acceptable representative are able to attend all scheduled visits and to comply with all trial procedures. Exclusion Criteria: Subject is pregnant, or lactating, or of childbearing potential (to be considered of non-childbearing potential, a female must be pre-menarche, surgically sterile, or using an effective method of contraception or abstinence from at least 4 weeks prior to the first vaccination and until at least 4 weeks after the last vaccination) Participation at the time of study enrollment (or in the 4 weeks preceding the first trial vaccination) or planned participation during the present trial period in another clinical trial investigating a vaccine, drug, medical device, or medical procedure Receipt of any vaccine in the 4 weeks preceding the first trial vaccination or planned receipt of any vaccine in the 4 weeks following any trial vaccination Any previous vaccination against rabies (in pre- or post-exposure regimen) with either the trial vaccine or another vaccine Bite by a potentially rabid animal in the previous 6 months without post-exposure prophylaxis Receipt of immune globulins, blood or blood-derived products in the past 3 months Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy, within the preceding 6 months; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months) Self-reported seropositivity for Human Immunodeficiency Virus (HIV) Known systemic hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to a vaccine containing any of the same substances Self-reported thrombocytopenia, contraindicating intramuscular vaccination Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating intramuscular vaccination Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily Current alcohol abuse or drug addiction Chronic illness that, in the opinion of the investigator, is at a stage where it might interfere with trial conduct or completion Moderate or severe acute illness/infection (according to investigator judgment) on the day of vaccination or febrile illness (temperature ≥ 38.0°C). A prospective subject should not be included in the study until the condition has resolved or the febrile event has subsided Identified as an Investigator or employee of the Investigator or study center with direct involvement in the proposed study, or identified as an immediate family member (i.e., spouse, natural or adopted child) of the Investigator or employee with direct involvement in the proposed study History of Guillain-Barré syndrome.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Medical Director
Organizational Affiliation
Sanofi Pasteur SA
Official's Role
Study Director
Facility Information:
City
Manila
ZIP/Postal Code
1000
Country
Philippines
City
Muntinlupa City
ZIP/Postal Code
1781
Country
Philippines

12. IPD Sharing Statement

Citations:
PubMed Identifier
35906106
Citation
Quiambao B, Montalban C, Minutello AM, Guinet-Morlot F, Moureau A, Petit C, Pichon S. Serum-free purified Vero rabies vaccine is safe and immunogenic in children: Results of a randomized phaseII pre-exposure prophylaxis regimen study. Vaccine. 2022 Aug 19;40(35):5170-5178. doi: 10.1016/j.vaccine.2022.06.061. Epub 2022 Jul 26.
Results Reference
derived
Links:
URL
http://www.sanofipasteur.com
Description
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Purified Vero Rabies Vaccine-Serum Free Compared to Human Diploid Cell Vaccine in a Pre-exposure Prophylaxis Regimen

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