Study of CYD Dengue Vaccine in Healthy Children and Adolescents in South America

March 10, 2022 updated by: Sanofi Pasteur, a Sanofi Company

Immunogenicity and Safety of CYD Dengue Vaccine in Healthy Children and Adolescents Aged 9 to 16 Years in South America

The purpose of this study is to generate immunogenicity and safety data in preparation for efficacy studies in Latin America.

Primary Objectives:

  • To describe the immune response to dengue viruses before and after each vaccination with CYD dengue vaccine.
  • To evaluate the safety of each vaccination with CYD dengue vaccine.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Participants in the Dengue Vaccine Group will receive 3 vaccinations with CYD Dengue vaccine. Participants in the Control Group will receive placebo vaccinations for the first 2 vaccinations, followed by tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis vaccine adsorbed (ADACEL®) (in Venezuela) or Meningococcal A+C vaccine (in Brazil) as a way of providing therapeutic benefit to the participants in the control group.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
150

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Brazil
      • Vitória, Brazil, ES, 29040-091

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

9 years to 16 years (Child)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria :

  • Aged 9 to 16 years on the day of inclusion
  • Participant in good health, based on medical history and physical examination
  • Provision of assent form/informed consent form signed by the participant and by the parent(s) or another legally acceptable representative
  • Participant and parent(s)/legally acceptable representative(s) able to attend all scheduled visits and to comply with all trial procedures
  • For a female participant of child-bearing potential, avoid becoming pregnant (use of an effective method of contraception or abstinence) for at least 4 weeks prior to first vaccination until at least 4 weeks after the last vaccination

Exclusion Criteria :

  • Personal or family history of thymic pathology (thymoma), thymectomy, or myasthenia
  • For a female participant of child-bearing potential, known pregnancy or positive urine pregnancy test at Visit 1
  • Participation in another clinical trial investigating a vaccine, drug, medical device, or a medical procedure in the 4 weeks preceding the first trial vaccination
  • Breast-feeding woman
  • Planned participation in another clinical trial during the present trial period
  • Known or suspected congenital or acquired immunodeficiency, immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceding 6 months, or long-term systemic corticosteroids therapy
  • Known systemic hypersensitivity to any of the components of any of the trial vaccines or history of a life-threatening reaction to any of the trial vaccines or to a vaccine containing any of the same substances
  • Chronic illness at a stage that could interfere with trial conduct or completion, in the opinion of the Investigator
  • Current alcohol abuse or drug addiction that may interfere with the participant's ability to comply with trial procedures
  • Receipt of blood or blood-derived products in the preceding 3 months that might interfere with the assessment of immune response
  • Receipt of any vaccine in the 4 weeks preceding the first trial vaccination
  • Planned receipt of any vaccine in the 4 weeks following the first trial vaccination
  • Participant deprived of freedom by administrative or court order, or in an emergency setting, or hospitalized without his/her consent
  • Febrile illness (temperature ≥ 38.0 ºC) or moderate or severe acute illness/infection on the day of vaccination, according to Investigator judgment
  • Thrombocytopenia, bleeding disorder or anticoagulants in the 3 weeks preceding inclusion contraindicating intramuscular vaccination
  • Severe diseases with or without fever, convulsions or neurological abnormalities without treatment or in progression.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Dengue Vaccine Group
Participants will receive Live, attenuated, recombinant dengue serotype 1 , 2, 3 , and 4 virus vaccine
Biological: Live, attenuated, recombinant dengue serotype 1 , 2, 3 , and 4 virus
0.5 mL, Subcutaneous (SC)
Other Names:
  • CYD Dengue Vaccine
Placebo Comparator: Control Group
Participants will receive a placebo, NaCl 0.9%.
Biological: NaCl 0.9%
0.5 mL, Subcutaneous
Biological: Tetanus toxoid, reduced diphtheria toxoid, acellular pertussis vaccine adsorbed
0.5 mL, Intramuscular
Other Names:
  • ADACEL®
Biological: Meningococcal A+C vaccine
0.5 mL, Intramuscular

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants With Seropositivity Against Each Serotype With the Parental Dengue Virus Strains Before and After Vaccinations With Either CYD Dengue Vaccine or a Placebo
Time Frame: Before and 28 days after each injection
Seropositivity was defined as participants achieving neutralizing antibody titers ≥10 (1/dil) against each serotype and was assessed using the Dengue Plaque Reduction Neutralization Test (PRNT).
Before and 28 days after each injection
Percentage of Flavivirus Immune Participants With Seropositivity Against Each Serotype With the Parental Dengue Virus Strains Before and After Vaccinations With Either CYD Dengue Vaccine or a Placebo
Time Frame: Before and 28 days after each injection
Seropositivity was defined as participants achieving neutralizing antibody titers ≥10 (1/dil) against each serotype and was assessed using the Dengue Plaque Reduction Neutralization Test (PRNT). Flavivirus immune subjects at baseline are defined as those subjects with ≥10 (1/dil) for at least 1 serotype with the parental dengue virus strain or for the yellow fever titer.
Before and 28 days after each injection
Percentage of Flavivirus Naïve Subjects With Seropositivity Against Each Serotype With the Parental Dengue Virus Strains Before and After Vaccinations With Either CYD Dengue Vaccine or a Placebo
Time Frame: Before and 28 Days after each injection
Seropositivity was defined as participants achieving neutralizing antibody titers ≥10 (1/dil) against each serotype and was assessed using the Dengue Plaque Reduction Neutralization Test (PRNT). Flavivirus naïve subjects at baseline are defined as those subjects with <10 (1/dil) for all serotypes with parental dengue virus strains and for yellow fever titer.
Before and 28 Days after each injection
Percentage of Subjects With Seropositivity Against At Least 1, 2, 3, or 4 Parental Dengue Virus Serotypes Before and After Vaccinations With Either CYD Dengue Vaccine or a Placebo
Time Frame: Before and 28 days after each injection
Seropositivity was defined as participants achieving neutralizing antibody titers ≥10 (1/dil) against each serotype and was assessed using the Dengue Plaque Reduction Neutralization Test (PRNT).
Before and 28 days after each injection
Percentage of Flavivirus Immune Subjects With Seropositivity Against At Least 1, 2, 3, or 4 Parental Dengue Virus Serotypes Before and After Vaccinations With Either CYD Dengue Vaccine or a Placebo
Time Frame: Before and 28 days after each injection
Seropositivity was defined as participants achieving neutralizing antibody titers ≥10 (1/dil) against each serotype and was assessed using the Dengue Plaque Reduction Neutralization Test (PRNT). Flavivirus immune subjects at baseline are defined as those subjects with ≥10 (1/dil) for at least 1 serotype with the parental dengue virus strain or for the yellow fever titer.
Before and 28 days after each injection
Percentage of Flavivirus Naïve Subjects With Seropositivity Against At Least 1, 2, 3, or 4 Parental Dengue Virus Serotypes Before and After Vaccinations With Either CYD Dengue Vaccine or a Placebo
Time Frame: Before and 28 days after each injection
Seropositivity was defined as participants achieving neutralizing antibody titers ≥10 (1/dil) against each serotype and was assessed using the Dengue Plaque Reduction Neutralization Test (PRNT). Flavivirus naïve subjects at baseline are defined as those subjects with <10 (1/dil) for all serotypes with parental dengue virus strains and for yellow fever titer.
Before and 28 days after each injection
Geometric Mean Titer Ratios (GMTRs) Against Each Serotype With the Parental of Dengue Virus Strains Before and After Vaccinations With Either CYD Dengue Vaccine or a Placebo
Time Frame: Before and 28 days after each injection
Geometric mean titer ratios were assessed using the Dengue Plaque Reduction Neutralization Test (PRNT).
Before and 28 days after each injection
Geometric Mean Titers (GMTs) Against Each Serotype With the Parental of Dengue Virus Strains Before and After Vaccinations With Either CYD Dengue Vaccine or a Placebo
Time Frame: Before and 28 days after each injection
Geometric mean titers were assessed using the Dengue Plaque Reduction Neutralization Test (PRNT).
Before and 28 days after each injection
Geometric Mean Titers (GMTs) of Flavivirus Immune Subjects Against Each Serotype With the Parental of Dengue Virus Strains Before and After Vaccinations With Either CYD Dengue Vaccine or a Placebo
Time Frame: Before and 28 days after each injection
Geometric mean titers were assessed using the Dengue Plaque Reduction Neutralization Test (PRNT). Flavivirus immune subjects at baseline are defined as those subjects with ≥10 (1/dil) for at least 1 serotype with the parental dengue virus strain or for the yellow fever titer.
Before and 28 days after each injection
Geometric Mean Titer Ratios (GMTRs) of Flavivirus naïve Subjects Against Each Serotype With the Parental of Dengue Virus Strains Before and After Vaccinations With Either CYD Dengue Vaccine or a Placebo
Time Frame: Before and 28 days after each injection
Geometric mean titers were assessed using the Dengue Plaque Reduction Neutralization Test (PRNT). Flavivirus naïve subjects at baseline are defined as those subjects with <10 (1/dil) for all serotypes with parental dengue virus strains and for yellow fever titer.
Before and 28 days after each injection
Percentage of Participants Reporting Solicited Injection-Site and Systemic Reactions Following Any and Each Vaccination With Either CYD Dengue Vaccine or a Placebo
Time Frame: Day 0 up to Day 14 post each vaccination
Injection-site reactions: Pain, Erythema, and Swelling. Systemic reactions: Fever, Headache, Malaise, Myalgia, and Asthenia. Grade 3 Injection-site reactions (9 to 11 years): Pain, Incapacitating, unable to perform usual activities; Erythema and Swelling, ≥5 cm. Grade 3 Injection site reactions (≥12 years): Pain, Significant; prevents daily activity; Erythema and Swelling, >10 cm. Grade 3 Systemic reactions: Fever, ≥39˚C; Headache, Malaise, Myalgia, and Asthenia, Significant; prevents daily activity.
Day 0 up to Day 14 post each vaccination

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Sanofi Pasteur, a Sanofi Company

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 1, 2010

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 1, 2012

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2012

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 20, 2010

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 20, 2010

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 24, 2010

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 21, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 10, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CYD30
  • UTN: U1111-1111-6073 (Other Identifier: WHO)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD 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

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings