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OpenTrials
Completed

NCT Number: NCT00880893

Study of Sanofi Pasteur's CYD Dengue Vaccine in Healthy Subjects in Singapore

Primary Objectives:

* To evaluate safety after each CYD Dengue vaccination in terms of injection site and systemic reactogenicity. * To evaluate the occurrence of Serious Adverse Events (SAEs) throughout the trial period. * To evaluate the humoral immune response to each CYD Dengue serotype after each vaccination in a subset of participants.

Secondary Objectives:

* To evaluate the persistence of the humoral immune response during 4 years after the last vaccination in a subset of participants.

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Key information

Conditions

Dengue Fever Arbovirus Infections Dengue Dengue Diseases Dengue Hemorrhagic Fever Dengue Virus Flaviviridae Infections Flavivirus Infections Hemorrhagic Fevers, Viral Infections Mosquito-Borne Diseases RNA Virus Infections Severe Dengue Vector Borne Diseases Virus Diseases

Age range

2 year–45 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Singapore

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About this study

This was a multicenter trial involving three vaccinations one each at 0, 6 and 12 months over a period of 1 year, and a 4-year follow-up following the last vaccination.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Aged from 2 to 45 years on the day of inclusion.
  • Participant in good health, based on medical history and physical examination.
  • Provision of informed consent form (and assent form for participants aged 6 to 12 years) signed by the participant and by the parent(s) or another legally acceptable representative for participants aged less than 21 years.
  • Participants and parent(s)/legally acceptable representative able to attend all scheduled visits and comply with all trial procedures.
  • For a woman of child-bearing potential, avoid becoming pregnant (use of an effective method of contraception or abstinence) for at least 4 weeks before the first vaccination until 4 weeks after the last vaccination.

Exclusion criteria

  • Febrile illness (temperature >= 37.5°C) or moderate or severe acute illness/infection on the day of the first vaccination, according to Investigator judgment.
  • For a woman of child-bearing potential, known pregnancy or positive urine pregnancy test on the day of inclusion.
  • Breast-feeding woman.
  • Known systemic hypersensitivity to any of the components of the trial vaccines (especially egg proteins or neomycin) or history of a life-threatening reaction to the trial vaccines or to a vaccine containing any of the same substances.
  • Personal or family history of thymic pathology or myasthenia.
  • Previous hepatitis A vaccination (for children only).
  • Known or suspected congenital or acquired immunodeficiency, immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the past 6 months, or long-term systemic corticosteroid therapy.
  • Chronic illness at a stage that could interfere with trial conduct or completion, in the opinion of the Investigator.
  • Receipt of blood or blood-derived products in the past 3 months that might interfere with the assessment of immune response.
  • Participation in another clinical trial investigating a vaccine, drug, medical device, or a medical procedure in the 4 weeks preceding the first trial vaccination.
  • Planned participation in another clinical trial during the 18 coming months.
  • 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 an administrative or court order, or in an emergency setting, or hospitalized without his/her consent.
  • Current or past alcohol abuse or drug addiction that may interfere with the participants ability to comply with trial procedures.
  • Participant who plans to move to another country within the 18 coming months.

Treatment and study plan

CYD Dengue vaccine

Biological

0.5 mL, Subcutaneous on Day 0, Months 6 and 12

Other names: Sanofi Pasteur's CYD Dengue Vaccine

NaCl + influenza virus or hepatitis A vaccine

Biological

0.5 mL, Subcutaneous (Intramuscular - Hepatitis A)

Other names: NaCl 0.9%, Vaxigrip®, Havrix® pediatric formulation

Primary outcomes

  1. Percentage of All Participants Reporting Solicited Injection-site and Systemic Reactions Following Each Injection With CYD Dengue Vaccine or Placebo

    Time frame: Day 0 up to 14 days post-any and each injection

    Solicited injection site reactions: Pain, Erythema, and Swelling. Solicited systemic reactions: Fever, Headache, Malaise, Myalgia, and Asthenia. Grade 3 Solicited injection site reactions (2-11 years): Pain, incapacitating, unable to perform usual activities; Erythema and Swelling, >=5 cm. Grade 3 Solicited injection site reactions (adolescents and adults: >=12 years): Pain, significant; prevents daily activity; Erythema and Swelling: >10 cm. Grade 3 Solicited systemic reactions (all participants): Fever, >=39.0°C; Headache, Malaise, Myalgia, and Asthenia: significant; prevents daily activity.

  2. Percentage of Participants by Age Group (2-11 Years, 12-17 Years, 18-45 Years) Reporting Solicited Injection-site and Systemic Reactions Following Each Injection (Inj.) With CYD Dengue Vaccine or Placebo

    Time frame: Day 0 up to 14 days post-each injection

    Solicited injection site reactions: Pain, Erythema, and Swelling. Solicited systemic reactions: Fever, Headache, Malaise, Myalgia, and Asthenia.

  3. Percentage of All Participants Who Achieved Seropositivity Against Each of the Dengue Virus Serotypes Before and After Each Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: Pre-Injection 1, 2, and 3 and 28 days Post-Injection 1, 2, and 3

    Seropositivity against each dengue virus serotype (parental strains) was assessed using a dengue plaque reduction neutralization test (PRNT) assay. Seropositive participants were defined as participants with neutralizing antibody titers >=10 (1/dilution).

  4. Percentage of Participants by Age Group (2-11 Years, 12-17 Years, 18-45 Years) Who Achieved Seropositivity Against Each of the Dengue Virus Serotypes Before and After the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: Pre-Injection 1 and 28 days Post-Injection 3

    Seropositivity against each dengue virus serotypes (parental strains) was assessed using a dengue PRNT assay. Seropositive participants were defined as participants with neutralizing antibody titers >=10 (1/dilution).

  5. Percentage of Participants by Age Group (2-11 Years, 12-17 Years, 18-45 Years) Who Achieved Seropositivity Against at Least 1, 2, 3, or 4 of the Dengue Virus Serotypes Before and After the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: Pre-Injection 1 and 28 days Post-Injection 3

    Seropositivity against at least 1, 2, 3, or 4 dengue virus serotypes (parental strains) was assessed using a dengue PRNT assay. Seropositive participants were defined as participants with neutralizing antibody titers >=10 (1/dilution).

  6. Geometric Mean Titers (GMTs) of Antibodies in All Participants Against Each Serotype With the Parental Dengue Virus Strain Before and Following Each Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: Pre-Injection 1, 2, and 3 and 28 days Post-Injection 1, 2, and 3

    GMTs against each serotype with the parental dengue virus strains were assessed using a dengue PRNT assay.

  7. GMTs of Antibodies by Age Groups (2-11 Years, 12-17 Years, 18-45 Years) Against Each Serotype With the Parental Dengue Virus Strain Before and Following the Third Vaccination With CYD Dengue Vaccine

    Time frame: Pre-Injection 1 and 28 days Post-Injection 3

    GMTs against each dengue virus serotype (parental strains) were assessed using a dengue PRNT assay.

Secondary outcomes

  1. Percentage of Participants Aged 2 to 11 Years Who Achieved Seropositivity Against Each of the Dengue Virus Serotypes Before and up to 4 Years After the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: Pre-Injection 1, 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    Seropositivity against each dengue virus serotypes (parental strains) was assessed using a dengue PRNT assay. Seropositive participants were defined as participants with neutralizing antibody titers >=10 (1/dilution).

  2. Percentage of Participants Aged 12 to 17 Years Old Who Achieved Seropositivity Against Each of the Dengue Virus Serotypes Before and up to 4 Years After the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: Pre-Injection 1, 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    Seropositivity against each dengue virus serotypes (parental stains) was assessed using a dengue PRNT assay. Seropositive participants were defined as participants with antibody titers >=10 (1/dilution).

  3. Percentage of Participants Aged 18 to 45 Years Who Achieved Seropositivity Against Each of the Dengue Virus Serotypes Before and up to 4 Years After the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: Pre-Injection 1, 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    Seropositivity against each dengue virus serotypes (parental stains) was assessed using a dengue PRNT assay. Seropositive participants were defined as participants with neutralizing antibody titers >=10 (1/dilution).

  4. Percentage of Participants Aged 2 to 11 Years Old Who Achieved Seropositivity Against At Least 1, 2, 3, or 4 of the Dengue Virus Serotypes Before and After the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: Pre-Injection 1, 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    Seropositivity against at least 1, 2, 3, or 4 dengue virus serotypes was assessed using a dengue PRNT assay. Seropositive participants were defined as participants with neutralizing antibody titers >=10 (1/dilution).

  5. Percentage of Participants Aged 12 to 17 Years Old Who Achieved Seropositivity Against at Least 1, 2, 3, or 4 of the Dengue Virus Serotypes Before and After the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: Pre-Injection 1, 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    Seropositivity against at least 1, 2, 3, or 4 dengue virus serotypes was assessed using a dengue PRNT assay. Seropositive participants were defined as participants with neutralizing antibody titers >=10 (1/dilution).

  6. Percentage of Participants Aged 18 to 45 Years Old Who Achieved Seropositivity Against at Least 1, 2, 3, or 4 of the Dengue Virus Serotypes Before and After the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: Pre-Injection 1, 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    Seropositivity against at least 1, 2, 3, or 4 dengue virus serotypes was assessed using a dengue PRNT assay. Seropositive participants were defined as participants with neutralizing antibody titers >=10 (1/dilution).

  7. GMTs of Antibodies in Participants 2 to 11 Years Old Against Each Serotype With the Parental Dengue Virus Strain Before and Following the Third Vaccination With CYD Dengue Vaccine

    Time frame: Pre-Injection 1, 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    GMTs against each serotype with the dengue virus strain (parental strains) were assessed using a dengue PRNT assay.

  8. GMTs of Antibodies in Participants 12 to 17 Years Old Against Each Serotype With the Parental Dengue Virus Strain Before and Following the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: Pre-Injection 1, 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    GMTs against each serotype with the dengue virus strain (parental strains) were assessed using a dengue PRNT assay.

  9. GMTs of Antibodies in Participants 18 to 45 Years Old Against Each Serotype With the Parental Dengue Virus Strain Before and Following the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: Pre-Injection 1, 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    GMTs against each serotype with the dengue virus strain were assessed using a dengue PRNT assay.

  10. Percentage of Participants (Aged 2 to 11 Years) Immune to Dengue at Baseline Who Are Seropositive for Each of the Dengue Virus Serotypes up to 4 Years After the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    Seropositivity against each serotype with the dengue virus strain were assessed using a dengue PRNT assay. Seropositive participants were defined as participants with antibody titers >=10 (1/dilution). Dengue participants immune at baseline was defined as those participants with titers >=10 (1/dilution) against at least one dengue serotype at baseline.

  11. Percentage of Participants (Aged 2 to 11 Years) Naïve to Dengue at Baseline Who Are Seropositive for Each of the Dengue Virus Serotypes up to 4 Years After the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    Seropositivity against each serotype with the dengue virus strain were assessed using a dengue PRNT assay. Seropositive participants were defined as participants with neutralizing antibody titers >=10 (1/dilution). Dengue participants naïve at baseline was defined as those participants with titers <10 (1/dilution) against all dengue serotypes at baseline.

  12. Percentage of Participants (Aged 12 to 17 Years) Immune to Dengue at Baseline Who Are Seropositive for Each of the Dengue Virus Serotypes up to 4 Years After the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    Seropositivity against each serotype with the dengue virus strain were assessed using a dengue PRNT assay. Seropositive participants were defined as participants with neutralizing antibody titers >=10 (1/dilution). Dengue participants immune at baseline was defined as those participants with titers >=10 (1/dilution) against at least one dengue serotype at baseline.

  13. Percentage of Participants (Aged 12 to 17 Years) Naïve to Dengue at Baseline Who Are Seropositive for Each of the Dengue Virus Serotypes up to 4 Years After the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    Seropositivity against each serotype with the dengue virus strain were assessed using a PRNT assay. Seropositive participants were defined as participants with neutralizing antibody titers >=10 (1/dilution). Dengue participants naïve at baseline was defined as those participants with titers <10 (1/dilution) against all dengue serotypes at baseline.

  14. Percentage of Participants (Aged 18 to 45 Years) Immune to Dengue at Baseline Who Are Seropositive for Each of the Dengue Virus Serotypes up to 4 Years After the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    Seropositivity against each serotype with the dengue virus strain were assessed using a dengue PRNT assay. Seropositive participants were defined as participants with neutralizing antibody titers >=10 (1/dilution). Dengue participants immune at baseline was defined as those participants with titers >=10 (1/dilution) against at least one dengue serotype at baseline.

  15. Percentage of Participants (Aged 18 to 45 Years) Naïve to Dengue at Baseline Who Are Seropositive for Each of the Dengue Virus Serotypes up to 4 Years After the Third Vaccination With CYD Dengue Vaccine or Placebo

    Time frame: 28 days Post-Injection 3, at 1 year follow up, 2 year follow up, 3 year follow up and 4 year follow up (assessed post-injection 3 during the follow up duration of 4 years)

    Seropositivity against each serotype with the dengue virus strain were assessed using a dengue PRNT assay. Seropositive participants were defined as participants with neutralizing antibody titers >=10 (1/dilution). Dengue participants naïve at baseline was defined as those participants with titers <10 (1/dilution) against all dengue serotypes at baseline.

Sponsors and collaborators

Lead sponsor

Sanofi Pasteur, a Sanofi Company

Industry

Registry information

Official study title

Immunogenicity and Large-Scale Safety of Tetravalent Dengue Vaccine in Healthy Subjects Aged 2 to 45 Years in Singapore

Important dates

Study start
2009
Primary completion
2014
Study completion
2014
First posted
Apr 14, 2009
Registry last updated
Mar 21, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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