Adults 9 to 60, any sex, with Dengue Fever or Dengue Hemorrhagic Fever. Patients with the condition only — healthy volunteers not accepted.
Results — posted to ClinicalTrials.gov
Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.
Geometric Mean Concentrations (GMCs) of Antibodies Against Pertussis Antigens (Pertussis Toxoid, Filamentous Hemagglutinin, Pertactin, and Fimbriae 2+3) 28 Days After Dose of Tdap Vaccine in Previously Dengue Immune ParticipantsPrimary· 28 days after Tdap vaccination
GMCs against each pertussis antigens (pertussis toxoid \[PT\], filamentous hemagglutinin \[FHA\], pertactin \[PRN\], fimbriae types 2 and 3 \[FIM2+3\]) were assessed using an enzyme-linked immunosorbent assay (ELISA) method and were measured in ELISA unit/milliliter (EU/mL). Dengue immune participants at Baseline were defined as participants with titers \>=10 (1/dilution) for at least one serotype with the parental dengue virus strain.
Percentage of Participants With Seroprotection Against Diphtheria and Tetanus Antigens 28 Days After the Dose of Tdap Vaccine in the Previously Dengue Immune ParticipantsPrimary· 28 days after Tdap vaccination
Seroprotection against diphtheria (Anti-D) and tetanus (Anti-T) antigens was performed by Micrometabolic Inhibition Test - Toxin Neutralization assay (MIT-TNA) and ELISA, respectively. Seroprotection was defined as anti-D and anti-T Ab concentration greater than 0.1 international units (IU)/mL. Dengue immune participants at Baseline were defined as participants with titers \>=10 (1/dilution) for at least one serotype with the parental dengue virus strain.
Geometric Mean Titers (GMTs) of Antibodies Against Each Dengue Virus Serotype 28 Days After the First Dose of CYD Dengue Vaccination in the Previously Dengue Immune ParticipantsPrimary· 28 days after first CYD dengue vaccination
The GMTs against each of the four parenteral dengue virus serotypes (1, 2, 3 and 4) of CYD dengue vaccine were assessed using the 50% plaque reduction neutralization test (PRNT50) assay method. Dengue immune participants at Baseline were defined as participants with titers \>=10 (1/dilution) for at least one serotype with the parental dengue virus strain. Titers were measured in terms of 1/dilution.
Geometric Mean Titers of Antibodies Against Each Dengue Virus Serotype at Baseline and 28 Days After the First Dose of CYD Dengue Vaccination in the Previously Dengue Immune ParticipantsSecondary· Baseline (Pre-CYD vaccination 1) and 28 days after the first CYD dengue vaccination
The GMTs against each of the four parenteral dengue virus serotypes (1, 2, 3 and 4) of CYD dengue vaccine were assessed using PRNT50 assay method. Dengue immune participants at Baseline were defined as participants with titers \>=10 (1/dilution) for at least one serotype with the parental dengue virus strain. Titers were measured in terms of 1/dilution.
Percentage of Participants With Neutralizing Antibody Titers Against Each of the 4 Dengue Virus Serotypes of CYD at Baseline and 28 Days After First Dose of CYD Dengue Vaccination in the Previously Dengue Immune ParticipantsSecondary· Baseline (Pre-CYD vaccination 1) and 28 days after the first CYD dengue vaccination
The GMTs against each of the four parenteral dengue virus serotypes (1, 2, 3 and 4) of CYD dengue vaccine were assessed using PRNT50 assay method. Dengue immune participants at Baseline were defined as participants with titers \>=10 (1/dilution) for at least one serotype with the parental dengue virus strain.
Percentage of Participants With Neutralizing Antibody Titers Above Predefined Thresholds Against at Least 1, 2, 3, or 4 Serotypes of CYD at Baseline and 28 Days After the First Dose of CYD Dengue Vaccination in the Previously Dengue Immune ParticipantsSecondary· Baseline (Pre-CYD vaccination 1) and 28 days after the first CYD dengue vaccination
Dengue neutralizing antibody levels against each of the 4 dengue virus serotypes (1, 2, 3, and 4) were measured by PRNT50. Dengue immune participants at Baseline were defined as participants with titers \>=10 (1/dilution) for at least one serotype with the parental dengue virus strain. Percentage of participants with neutralizing antibody titers above pre-defined thresholds (\>=10 and \>=100 \[1/dilution\]) against at least 1, 2, 3, or 4 serotypes of CYD were reported. Here, 'dil'=dilution and "vac"=vaccination in the specified categories.
Geometric Mean Concentrations of Serum Antibodies Against Pertussis Antigens (Pertussis Toxoid, Filamentous Hemagglutinin, Pertactin, and Fimbriae 2+3) at Baseline and 28 Days After the Dose of Tdap Vaccine in the Previously Dengue Immune ParticipantsSecondary· Baseline (Pre-Tdap vaccination) and 28 days after the Tdap vaccination
GMCs against each pertussis antigens (PT, FHA, PRN, FIM2+3) were assessed using ELISA assay method and were measured in EU/mL. Dengue immune participants at Baseline were defined as participants with titers \>=10 (1/dilution) for at least one serotype with the parental dengue virus strain.
Percentage of Participants Achieving Serum Antibody (>=0.1 IU/mL) Against Diphtheria and Tetanus Antigens at Baseline and 28 Days After the Dose of Tdap Vaccine in the Previously Dengue Immune ParticipantsSecondary· Baseline (Pre-Tdap vaccination) and 28 days after the dose of Tdap vaccination
The GMC against diphtheria and tetanus antigens was performed by MIT-TNA and ELISA, respectively. Dengue immune participants at Baseline were defined as participants with titers \>=10 (1/dilution) for at least one serotype with the parental dengue virus strain.
Number of Participants With Immediate Unsolicited Adverse Events (AE) Following Vaccination With Tdap or CYD Dengue VaccineSecondary· Within 30 minutes after any and each vaccination
An unsolicited AE was an observed AE that did not fulfill the conditions prelisted in the electronic case report form (eCRF) in terms of diagnosis and/or onset post-vaccination. Any unsolicited AE occurred during first 30 minutes post-vaccination was recorded on the CRF as immediate AE. At Visit 1, participants of Group 1 received no vaccination and participants of Group 2 received only Tdap vaccination. At Visit 2, participants of Group 1 received both CYD and Tdap vaccination and participants of Group 2 received only CYD vaccination. At Visit 4, participants of Groups 1 and 2 received CYD va
Number of Participants With Solicited Injection Site Reactions Following Vaccination With Tdap or CYD Dengue VaccineSecondary· Within 7 days after any and each vaccination
A solicited reaction (SR) was an AE observed and reported under the conditions (symptom and onset) prelisted (i.e., solicited) in the eCRF and considered as related to vaccination. Solicited injection site reactions included pain, erythema, and swelling. At Visit 1, participants of Group 1 received no vaccination and participants of Group 2 received only Tdap vaccination. At Visit 2, participants of Group 1 received both CYD and Tdap vaccinations and participants of Group 2 received only CYD vaccination. At Visit 4, participants of Groups 1 and 2 received only CYD vaccination.
Number of Participants With Solicited Systemic Reactions Following Vaccination With Tdap or CYD Dengue VaccineSecondary· Within 14 days after any and each vaccination
A SR reaction was an AE observed and reported under the conditions (symptom and onset) prelisted (i.e., solicited) in the CRF and considered as related to vaccination. Solicited injection site reactions included fever, headache, malaise, myalgia, and asthenia. At Visit 1, participants of Group 1 received no vaccination and participants of Group 2 received only Tdap vaccination. At Visit 2, participants of Group 1 received both CYD and Tdap vaccinations and participants of Group 2 received only CYD vaccination. At Visit 4, participants of Groups 1 and 2 received only CYD vaccination.
Number of Participants Reporting Unsolicited Adverse Events Following Vaccination With Tdap or CYD Dengue VaccineSecondary· Within 28 days after any and each vaccination
An unsolicited AE was an observed AE that did not fulfill the conditions prelisted in the eCRF in terms of diagnosis and/or onset post-vaccination. At Visit 1, participants of Group 1 received no vaccination and participants of Group 2 received only Tdap vaccination. At Visit 2, participants of Group 1 received both CYD and Tdap vaccinations and participants of Group 2 received only CYD vaccination. At Visit 4, participants of Groups 1 and 2 received CYD vaccination.
Time frame: AE data were collected from Day 0 up to Day 28 post any vaccination. SR data were collected from Day 0 up to Day 14 post-vaccination. The SAEs were collected throughout the trial, i.e. up to 6 months after last Tdap or CYD vaccination..
Reporting threshold: 5%.
Adverse-event reports describe events observed during the trial — not all are caused by the drug.
The aim of the study was to investigate the immunogenicity and safety of CYD dengue vaccine and Tetanus Toxoid (T), Reduced Diphtheria Toxoid (D) and Acellular Pertussis Vaccine Adsorbed (ap) (Tdap) vaccine when both vaccines were administered concomitantly or sequentially.
Primary Objectives:
* To demonstrate the non-inferiority of the humoral immune response to the Tdap booster dose concomitantly administered with the first dose of CYD dengue vaccine as compared to sequential administration, measured 28 days after Tdap booster dose.
* To demonstrate the non-inferiority of the humoral immune response to the first dose of CYD dengue vaccine concomitantly administered with Tdap as compared to sequential administration, measured 28 days after the first dose of CYD dengue vaccine.
Secondary Objectives:
* To demonstrate the non-inferiority of the humoral immune response of 3 doses of CYD dengue vaccine with the first dose concomitantly administered with Tdap as compared to sequential administration, measured 28 days after the third dose of CYD dengue vaccine.
* To describe the humoral immune response at baseline and 28 days after the first and third doses of CYD dengue vaccine, in each and any group.
* To describe the humoral immune response of Tdap vaccine at baseline and 28 days after concomitant administration with the first dose of CYD dengue vaccine as compared to the sequential administration, in each and any group.
* To describe the safety of the CYD dengue vaccine and of the Tdap booster dose after each and any injection in each group.
Publications & conference data
3 peer-reviewed publications reference this trial (live from Europe PMC):
NCT02741128 — Safety and Immunogenicity of a Tetravalent Dengue Vaccine in HIV-Positive Adults
· Phase 2
· completed
NCT02993757 — Immunogenicity and Safety of a Tetravalent Dengue Vaccine Administered Concomitantly or Sequentially With Gardasil®
· Phase 3
· completed
NCT02979535 — Immunogenicity and Safety of a Tetravalent Dengue Vaccine Administered Concomitantly or Sequentially With Cervarix®
· Phase 3
· completed
NCT02628444 — Immunogenicity and Safety of Different Vaccination Schedules of Tetravalent Dengue Vaccine in Healthy Subjects 9 to 50 Y
· Phase 2
· completed
NCT01943825 — Immunologic Mechanisms of Immune Interference and/or Cross-Neutralizing Immunity After CYD Tetravalent Dengue Vaccine
· Phase 2
· completed
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Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by Sanofi Pasteur, a Sanofi Company
Last refreshed: 25 March 2022
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT02992418.