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Study of Purified Vero Rabies Vaccine Compared With a Reference Rabies Vaccine as Simulated Rabies Post-Exposure Prophylaxis in Adults in Thaïland

Primary Purpose

Rabies (Healthy Volunteers)

Status
Completed
Phase
Phase 3
Locations
Thailand
Study Type
Interventional
Intervention
Purified vero rabies vaccine - serum free
Purified inactivated rabies vaccine
Human rabies immunoglobulins
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 (Healthy Volunteers) focused on measuring Rabies

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion criteria :

  • Aged ≥ 18 years on the day of inclusion
  • Able to attend all scheduled visits and to comply with all study procedures
  • Body Mass Index (BMI): 18.5 kg/m2 ≤ BMI ≤ 30 kg/m2s

Exclusion criteria:

  • Subject is pregnant, or lactating, or of childbearing potential and not using an effective method of contraception or abstinence from at least 4 weeks prior to the first vaccination and 1 month after each vaccination. To be considered of non-childbearing potential, a female must be pre-menarche or post-menopausal for at least 1 year, or surgically sterile.
  • Participation at the time of study enrollment or, planned participation during the present study period in another clinical study investigating a vaccine, drug, medical device, or medical procedure
  • Receipt of any vaccine in the 4 weeks (28 days) preceding the first study vaccination or planned receipt of any vaccine prior to Visit 7 (D90)
  • Previous vaccination against rabies (in pre- or post-exposure regimen) with either the study vaccines or another vaccine
  • Bite by, or exposure to 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)
  • At high risk for rabies exposure
  • Known systemic hypersensitivity to any of the study/control vaccine components or to human rabies immunoglobulin (HRIG), or history of a life-threatening reaction to the vaccines used in the study or to a vaccine containing any of the same substances
  • Self-reported thrombocytopenia, contraindicating intramuscular (IM) vaccination
  • Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating IM vaccination
  • Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily
  • Current alcohol or substance abuse that, in the opinion of the Investigator, might interfere with the study conduct or completion
  • Chronic illness that, in the opinion of the Investigator, is at a stage where it might interfere with study 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
  • Personal history of Guillain-Barré syndrome
  • 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 (ie, parent, spouse, natural or adopted child) of the Investigator or employee with direct involvement in the proposed study
  • Receipt of chloroquine or hydroxychloroquine up to 2 months prior to the study or through to study until Visit 7

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Sites / Locations

  • Investigational site number 7640002
  • Investigational site number 7640001
  • Investigational site number 7640003

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Active Comparator

Arm Label

Group 1: VRVg-2 + HRIG

Group 2: Verorab + HRIG

Arm Description

VRVg-2 4 injections: 2 at Day 0, 1 at Day 7, 1 at Day 21 + HRIG at D0

Verorab 4 injections: 2 at Day 0, 1 at Day 7, 1 at Day 21 + HRIG at D0

Outcomes

Primary Outcome Measures

Percentage of participants achieving rabies virus neutralizing antibody (RVNA) titer greater than or equal to (≥) 0.5 IU/mL
RVNA titers will be measured by rapid fluorescent focus inhibition test (RFFIT)
Percentage of participants achieving RVNA titer greater than or equal to (≥) 0.5 IU/mL
RVNA titers will be measured by RFFIT
Number of Participants achieving RVNA titer greater than or equal to (≥) lower limit of quantification
RVNA titers will be measured by RFFIT - Lower limit of quantification for RFFIT assay is 0.2 IU/mL
Number of Participants achieving RVNA titer greater than or equal to (≥) lower limit of quantification
RVNA titers will be measured by RFFIT - Lower limit of quantification for RFFIT assay is 0.2 IU/mL
Geometric Mean Titer Ratio (GMTR) of individual RVNA titer: (post-/pre-vaccination)
RVNA titers against rabies virus will be measured by RFFIT at Day 0 and Day 14 - RVNA ratios Day14/Day0 will be calculated
Geometric Mean Titer Ratio (GMTR) of individual RVNA titer: (post-/pre-vaccination)
RVNA titers against rabies virus will be measured by RFFIT at Day 0 and Day 35 - RVNA ratios Day35/Day0 will be calculated

Secondary Outcome Measures

Number of participants reporting immediate adverse events (AEs)
Unsolicited (spontaneously reported) systematic AEs
Percentage of participants reporting solicited injection site and systemic reactions
Solicited injection site reactions: - pain, erythema, and swelling in adults (aged ≥ 18 years) Solicited systemic reactions: - fever, headache, malaise and myalgia in adults (aged ≥ 18 years)
Number of participants reporting unsolicited injection site AEs
Unsolicited injection site AEs
Number of participants reporting unsolicited systemic AEs
Unsolicited systemic AEs
Number of participants reporting serious adverse events (SAEs)
SAEs, including adverse event of special interest (AESIs)
Percentage of participants achieving rabies virus neutralizing antibody (RVNA) titer greater than or equal to (≥) 0.5 IU/mL
RVNA titers will be measured by RFFIT
Number of Participants achieving RVNA titer greater than or equal to (≥) lower limit of quantification
RVNA titers will be measured by RFFIT - Lower limit of quantification for RFFIT assay is 0.2 IU/mL
Geometric Mean Titer Ratio (GMTR) of individual RVNA titer: (post-/pre-vaccination)
RVNA titers against rabies virus will be measured by RFFIT at Day 0 and Day 90 - RVNA ratios Day90/Day0 will be calculated

Full Information

First Posted
October 12, 2020
Last Updated
July 11, 2023
Sponsor
Sanofi Pasteur, a Sanofi Company
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1. Study Identification

Unique Protocol Identification Number
NCT04594551
Brief Title
Study of Purified Vero Rabies Vaccine Compared With a Reference Rabies Vaccine as Simulated Rabies Post-Exposure Prophylaxis in Adults in Thaïland
Official Title
Immunogenicity and Safety of the Purified Vero Rabies Vaccine - Serum Free (VRVg) Using the Zagreb Regimen as Simulated Rabies Post-exposure Prophylaxis in Healthy Adults in Thailand
Study Type
Interventional

2. Study Status

Record Verification Date
April 2022
Overall Recruitment Status
Completed
Study Start Date
October 11, 2020 (Actual)
Primary Completion Date
June 23, 2021 (Actual)
Study Completion Date
June 23, 2021 (Actual)

3. Sponsor/Collaborators

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

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
No
Data Monitoring Committee
No

5. Study Description

Brief Summary
Primary Objective: To describe the immune response induced by VRVg-2 and Verorab vaccines at D14 and D35 when co-administered with Human Rabies Immunoglobulins (HRIG) at D0, according to the Zagreb (2-1-1) IM regimen in healthy adult subjects. Secondary Objective: Immunogenicity To describe the immune response induced by VRVg-2 and Verorab vaccines at D90 when co-administered with HRIG at D0, according to the Zagreb (2-1-1) IM regimen in healthy adult subjects. Safety To describe the safety profile of VRVg-2 and Verorab vaccines when co administered with HRIG at D0, after each vaccination.
Detailed Description
The duration of each subject's participation in the study will be approximately 7 months (21 day-vaccination period followed by 6 months safety follow-up period).

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Rabies (Healthy Volunteers)
Keywords
Rabies

7. Study Design

Primary Purpose
Prevention
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
201 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Group 1: VRVg-2 + HRIG
Arm Type
Experimental
Arm Description
VRVg-2 4 injections: 2 at Day 0, 1 at Day 7, 1 at Day 21 + HRIG at D0
Arm Title
Group 2: Verorab + HRIG
Arm Type
Active Comparator
Arm Description
Verorab 4 injections: 2 at Day 0, 1 at Day 7, 1 at Day 21 + HRIG at D0
Intervention Type
Biological
Intervention Name(s)
Purified vero rabies vaccine - serum free
Other Intervention Name(s)
VRVg-2
Intervention Description
Pharmaceutical form:freeze-dried - Route of administration: intramuscular
Intervention Type
Biological
Intervention Name(s)
Purified inactivated rabies vaccine
Other Intervention Name(s)
Verorab
Intervention Description
Pharmaceutical form:freeze-dried - Route of administration: intramuscular
Intervention Type
Biological
Intervention Name(s)
Human rabies immunoglobulins
Other Intervention Name(s)
HRIG
Intervention Description
Pharmaceutical form:liquid/solution in 2 mL vials - Route of administration: intramuscular
Primary Outcome Measure Information:
Title
Percentage of participants achieving rabies virus neutralizing antibody (RVNA) titer greater than or equal to (≥) 0.5 IU/mL
Description
RVNA titers will be measured by rapid fluorescent focus inhibition test (RFFIT)
Time Frame
Day 14 (post-vaccination)
Title
Percentage of participants achieving RVNA titer greater than or equal to (≥) 0.5 IU/mL
Description
RVNA titers will be measured by RFFIT
Time Frame
Day 35 (post-vaccination)
Title
Number of Participants achieving RVNA titer greater than or equal to (≥) lower limit of quantification
Description
RVNA titers will be measured by RFFIT - Lower limit of quantification for RFFIT assay is 0.2 IU/mL
Time Frame
Day 14 (post-vaccination)
Title
Number of Participants achieving RVNA titer greater than or equal to (≥) lower limit of quantification
Description
RVNA titers will be measured by RFFIT - Lower limit of quantification for RFFIT assay is 0.2 IU/mL
Time Frame
Day 35 (post-vaccination)
Title
Geometric Mean Titer Ratio (GMTR) of individual RVNA titer: (post-/pre-vaccination)
Description
RVNA titers against rabies virus will be measured by RFFIT at Day 0 and Day 14 - RVNA ratios Day14/Day0 will be calculated
Time Frame
Day 14 (post-vaccination
Title
Geometric Mean Titer Ratio (GMTR) of individual RVNA titer: (post-/pre-vaccination)
Description
RVNA titers against rabies virus will be measured by RFFIT at Day 0 and Day 35 - RVNA ratios Day35/Day0 will be calculated
Time Frame
Day 35 (post-vaccination)
Secondary Outcome Measure Information:
Title
Number of participants reporting immediate adverse events (AEs)
Description
Unsolicited (spontaneously reported) systematic AEs
Time Frame
Within 30 minutes post-vaccination
Title
Percentage of participants reporting solicited injection site and systemic reactions
Description
Solicited injection site reactions: - pain, erythema, and swelling in adults (aged ≥ 18 years) Solicited systemic reactions: - fever, headache, malaise and myalgia in adults (aged ≥ 18 years)
Time Frame
Within 7 days post-vaccination
Title
Number of participants reporting unsolicited injection site AEs
Description
Unsolicited injection site AEs
Time Frame
Within 28 days post-vaccination
Title
Number of participants reporting unsolicited systemic AEs
Description
Unsolicited systemic AEs
Time Frame
Between each vaccination and up to 28 days after the last vaccination
Title
Number of participants reporting serious adverse events (SAEs)
Description
SAEs, including adverse event of special interest (AESIs)
Time Frame
Up to 6 months after last vaccination
Title
Percentage of participants achieving rabies virus neutralizing antibody (RVNA) titer greater than or equal to (≥) 0.5 IU/mL
Description
RVNA titers will be measured by RFFIT
Time Frame
Day 90 (post-vaccination)
Title
Number of Participants achieving RVNA titer greater than or equal to (≥) lower limit of quantification
Description
RVNA titers will be measured by RFFIT - Lower limit of quantification for RFFIT assay is 0.2 IU/mL
Time Frame
Day 90 (post-vaccination)
Title
Geometric Mean Titer Ratio (GMTR) of individual RVNA titer: (post-/pre-vaccination)
Description
RVNA titers against rabies virus will be measured by RFFIT at Day 0 and Day 90 - RVNA ratios Day90/Day0 will be calculated
Time Frame
Day 90 (post-vaccination)

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion criteria : Aged ≥ 18 years on the day of inclusion Able to attend all scheduled visits and to comply with all study procedures Body Mass Index (BMI): 18.5 kg/m2 ≤ BMI ≤ 30 kg/m2s Exclusion criteria: Subject is pregnant, or lactating, or of childbearing potential and not using an effective method of contraception or abstinence from at least 4 weeks prior to the first vaccination and 1 month after each vaccination. To be considered of non-childbearing potential, a female must be pre-menarche or post-menopausal for at least 1 year, or surgically sterile. Participation at the time of study enrollment or, planned participation during the present study period in another clinical study investigating a vaccine, drug, medical device, or medical procedure Receipt of any vaccine in the 4 weeks (28 days) preceding the first study vaccination or planned receipt of any vaccine prior to Visit 7 (D90) Previous vaccination against rabies (in pre- or post-exposure regimen) with either the study vaccines or another vaccine Bite by, or exposure to 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) At high risk for rabies exposure Known systemic hypersensitivity to any of the study/control vaccine components or to human rabies immunoglobulin (HRIG), or history of a life-threatening reaction to the vaccines used in the study or to a vaccine containing any of the same substances Self-reported thrombocytopenia, contraindicating intramuscular (IM) vaccination Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating IM vaccination Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily Current alcohol or substance abuse that, in the opinion of the Investigator, might interfere with the study conduct or completion Chronic illness that, in the opinion of the Investigator, is at a stage where it might interfere with study 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 Personal history of Guillain-Barré syndrome 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 (ie, parent, spouse, natural or adopted child) of the Investigator or employee with direct involvement in the proposed study Receipt of chloroquine or hydroxychloroquine up to 2 months prior to the study or through to study until Visit 7 The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Clinical Sciences & Operations
Organizational Affiliation
Sanofi Pasteur, a Sanofi Company
Official's Role
Study Director
Facility Information:
Facility Name
Investigational site number 7640002
City
Bangkok
ZIP/Postal Code
10330
Country
Thailand
Facility Name
Investigational site number 7640001
City
Bangkok
ZIP/Postal Code
10400
Country
Thailand
Facility Name
Investigational site number 7640003
City
Bangkok
ZIP/Postal Code
10700
Country
Thailand

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org

Learn more about this trial

Study of Purified Vero Rabies Vaccine Compared With a Reference Rabies Vaccine as Simulated Rabies Post-Exposure Prophylaxis in Adults in Thaïland

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