NCT02824198

Brief Summary

The aim of the study was to assess and describe the booster effect of a tetravalent CYD dengue vaccine dose administered about 5 years or more after the completion of a 3-dose vaccination schedule in Singapore. Primary Objective:

  • To demonstrate the non-inferiority in terms of geometric mean of titer ratios (GMTRs) of a CYD dengue vaccine booster compared to the third CYD dengue vaccine injection in participants from CYD28 trial (participants from Group 1 only). Secondary Objectives:
  • If the primary objective of non-inferiority achieved: To demonstrate the superiority, in terms of GMTRs, of a CYD dengue vaccine booster compared to the third CYD dengue vaccine injection in participants from CYD28 trial (participants from Group 1 only).
  • To describe the immune responses elicited by the CYD dengue vaccine booster or placebo injection in participants who received three doses of the CYD dengue vaccine in the CYD28 trial in all participants.
  • To describe the neutralizing antibody levels of each dengue serotype Post Dose 3 (CYD28 participants) and immediately prior to booster or placebo injection in all participants.
  • To describe the neutralizing antibody persistence 6 months, 1 year and 2 years post booster or placebo injection in all study participants.
  • To evaluate the safety of booster vaccination with CYD dengue vaccine in all participants.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
118

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Jul 2016

Geographic Reach
1 country

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 1, 2016

Completed
Same day until next milestone

Study Start

First participant enrolled

July 1, 2016

Completed
5 days until next milestone

First Posted

Study publicly available on registry

July 6, 2016

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 18, 2017

Completed
1.8 years until next milestone

Study Completion

Last participant's last visit for all outcomes

January 18, 2019

Completed
5 months until next milestone

Results Posted

Study results publicly available

June 14, 2019

Completed
Last Updated

March 24, 2022

Status Verified

March 1, 2022

Enrollment Period

9 months

First QC Date

July 1, 2016

Results QC Date

May 24, 2019

Last Update Submit

March 15, 2022

Conditions

Keywords

Dengue Hemorrhagic FeverDengue VirusCYD Dengue Vaccine

Outcome Measures

Primary Outcomes (1)

  • Geometric Mean Titers (GMTs) of Antibodies Against Each Dengue Virus Serotype Following Booster Injection With CYD Dengue Vaccine in CYD63 Compared to the Third CYD Dengue Vaccine Injection Received in Study CYD28: CYD Dengue Vaccine Booster Group

    GMTs of antibodies against each of the 4 dengue virus serotype (parental strains) were assessed using the plaque reduction neutralization test (PRNT).

    28 days post-dose 3 in CYD28 and 28 days post-booster injection in CYD63

Secondary Outcomes (12)

  • GMTs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection (Inj.) With Either CYD Dengue Vaccine or Placebo

    Pre-booster injection (Day 0) and 28 days post-booster injection

  • GMTRs of Antibodies Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or Placebo

    Pre-booster injection (Day 0) and 28 days post-booster injection

  • Percentage of Participants With Seropositivity Against Each Dengue Virus Serotype Before and Following Booster Injection With Either CYD Dengue Vaccine or Placebo

    Pre-booster injection (Day 0) and 28 days post-booster injection

  • Percentage of Participants With Seroconversion Against Each Dengue Virus Serotype Following Booster Injection With Either CYD Dengue Vaccine or Placebo

    28 days post-booster injection

  • GMTs of Antibodies Against Each Dengue Virus Serotype Following the Third CYD Dengue Vaccine Injection Received In Study CYD28 and Before Booster Injection With Either CYD Dengue Vaccine or Placebo in CYD63

    28 days post-dose 3 in CYD28 and pre-booster injection (Day 0) in CYD 63

  • +7 more secondary outcomes

Study Arms (2)

CYD Dengue Vaccine booster Group

EXPERIMENTAL

Participants who received 3 doses of the tetravalent dengue vaccine in a previous CYD dengue vaccine study (CYD28), received a booster injection of CYD dengue vaccine at Day 0 in this study (CYD63).

Biological: CYD Dengue Vaccine (5 dose formulation)

Placebo Group

PLACEBO COMPARATOR

Participants who received 3 doses of the tetravalent dengue vaccine in a previous CYD dengue vaccine study (CYD28), received an injection of a placebo at Day 0 in this study (CYD63).

Biological: Placebo, NaCl 0.9%

Interventions

0.5 mL, Subcutaneous

CYD Dengue Vaccine booster Group

0.5 mL, Subcutaneous

Placebo Group

Eligibility Criteria

Age14 Years - 50 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Had been identified as a potential participant by the Sponsor, and was included in the list provided to the investigator (i.e., aged 9 to 45 years on the day of first injection of CYD dengue vaccine in CYD28, had received 3 doses of CYD dengue vaccine in the CYD28 trial, and had a post-dose 3 serum sample available).
  • Participants with good health, based on medical history and physical examination.
  • Informed consent form (ICF) had been signed and dated by participant (based on local regulations), and ICF had been signed and dated by the parent(s) or another legally acceptable representative (and by an independent witness if required by local regulations).
  • Participant and parent(s)/legally acceptable representative(s) was able to attend all scheduled visits to comply with all trial procedures.

You may not qualify if:

  • Participant who received any other dengue vaccination that was not part of CYD28.
  • Participant was pregnant, or lactating, or of childbearing potential (considered of non childbearing potential, a female must be pre-menarche or post-menopausal for at least 1 year, surgically sterile, or using an effective method of contraception or abstinence from at least 4 weeks prior to vaccination until at least 4 weeks after vaccination).
  • Participation at the time of study enrollment (or in the 4 weeks preceding the 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 trial vaccination or planned receipt of any vaccine in the 4 weeks following the trial vaccination
  • 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).
  • Known systemic hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to the vaccines used in the trial or to a vaccine containing any of the same substances.
  • Chronic illness that, in the opinion of the Investigator, is at a stage where it might interfere with trial conduct or completion.
  • Receipt of blood or blood-derived products in the past 3 months, which might interfere with assessment of the immune response.
  • Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily.
  • Current alcohol abuse or drug addiction.
  • Moderate or severe acute illness/infection (according to investigator judgment) on the day of vaccination or febrile illness (temperature \>= 38.0°C). A prospective participant should not be included in the study until the condition had resolved or the febrile event had 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., parent, spouse, natural or adopted child) of the Investigator or employee with direct involvement in the proposed study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Unknown Facility

Singapore, 119074, Singapore

Location

Unknown Facility

Singapore, 169608, Singapore

Location

Unknown Facility

Singapore, 529889, Singapore

Location

Related Publications (2)

  • Park J, Archuleta S, Oh MH, Shek LP, Jin J, Bonaparte M, Fargo C, Bouckenooghe A. Immunogenicity and safety of a dengue vaccine given as a booster in Singapore: a randomized Phase II, placebo-controlled trial evaluating its effects 5-6 years after completion of the primary series. Hum Vaccin Immunother. 2020 Mar 3;16(3):523-529. doi: 10.1080/21645515.2019.1661204. Epub 2019 Nov 5.

  • Park J, Archuleta S, Oh MH, Shek LP, Wang H, Bonaparte M, Frago C, Bouckenooghe A, Jantet-Blaudez F, Begue S, Gimenez-Fourage S, Pagnon A. Humoral and cellular immunogenicity and safety following a booster dose of a tetravalent dengue vaccine 5+ years after completion of the primary series in Singapore: 2-year follow-up of a randomized phase II, placebo-controlled trial. Hum Vaccin Immunother. 2021 Jul 3;17(7):2107-2116. doi: 10.1080/21645515.2020.1861875. Epub 2021 Feb 24.

MeSH Terms

Conditions

DengueSevere Dengue

Interventions

Dosage FormsSodium Chloride

Condition Hierarchy (Ancestors)

Mosquito-Borne DiseasesVector Borne DiseasesInfectionsArbovirus InfectionsVirus DiseasesFlavivirus InfectionsFlaviviridae InfectionsRNA Virus InfectionsHemorrhagic Fevers, Viral

Intervention Hierarchy (Ancestors)

Pharmaceutical PreparationsTechnology, PharmaceuticalInvestigative TechniquesChloridesHydrochloric AcidChlorine CompoundsInorganic ChemicalsSodium Compounds

Results Point of Contact

Title
Medical Director
Organization
Sanofi Pasteur

Study Officials

  • Medical Director

    Sanofi Pasteur Inc.

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
An observer-blind procedure was followed for the injection of CYD dengue vaccine or placebo. Neither the blind-observer Investigator nor the participants (and/or participants' parent(s)/legally acceptable representative(s) for participants aged \< 21 years) knew which product was administered.
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 1, 2016

First Posted

July 6, 2016

Study Start

July 1, 2016

Primary Completion

March 18, 2017

Study Completion

January 18, 2019

Last Updated

March 24, 2022

Results First Posted

June 14, 2019

Record last verified: 2022-03

Data Sharing

IPD Sharing
Will share

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

Locations