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Dengue FeverNCT02827162

Association of Host Genetics With Vaccine Efficacy and Study of Immune Correlates of Risk From a Tetravalent Dengue Vaccine

An observational study of Dengue Fever and Dengue Haemorrhagic Fever, run by Sanofi Pasteur, a Sanofi Company at 1 site in Thailand.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Primary objectives: To assess how dengue vaccine efficacy varies across participant subgroups regarding polymorphism in human leukocyte antigen (HLA) alleles of interest. To assess the association between HLA alleles and, serotype-specific neutralization antibody titers and summary neutralization measure in the… Read more about this study

Who is it for?
Ages 7 to 17 yearsHealthy volunteers can take part
Conditions the study is for
Dengue Fever, Dengue Haemorrhagic Fever
Type of treatment
Injection or infusion
How many people
334 participants
Where
1 siteThailand
Study dates
29 Mar 2016to 27 Apr 2016
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 7 to 17 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Study population: Participants will include both, virologically-confirmed (VC) dengue cases and subjects not having experienced a VC dengue infection (control subjects) from the first Proof of Concept efficacy study CYD57 (NCT01983553) conducted in Thailand

Who may be able to join

  • Subject currently enrolled in, or having recently finished, CYD57 (NCT01983553; long-term safety follow-up study of the first PoC efficacy study), included in the subjects list provided by the Sponsor, with or without past experience of virologically confirmed dengue.
  • For children 7 to < 18 years. Assent form (AF) has been signed and dated by the subject, and informed consent form (ICF) has been signed and dated by the parents or another legally acceptable representative and by independent witness, as per local Ethics Committee (EC) requirement. For subjects ≥ 18 years. ICF has been signed and dated by the subject and by independent witness, as per local EC requirement.
  • Subject (and parent(s) / legally acceptable representative for subject < 18 years) are able to attend the scheduled visit and can comply with all study procedures.

Who cannot join

  • Any illness that, in the opinion of the Investigator, might interfere with study procedures.

Trial locations and contacts

1 site in 1 country.

Thailand1 site
  • Investigational Site

    Ratchaburi, 70000

Other trials in Thailand

About this study

Official title: Association of Host Genetics With Vaccine Efficacy, and Evaluation of Immune Correlates of Risk From the First Proof of Concept Efficacy Study With a Tetravalent Dengue Vaccine

Primary objectives:

  • To assess how dengue vaccine efficacy varies across participant subgroups regarding polymorphism in human leukocyte antigen (HLA) alleles of interest.
  • To assess the association between HLA alleles and, serotype-specific neutralization antibody titers and summary neutralization measure in the vaccine and placebo groups.
  • To assess the association between the polymorphism in HLA alleles of interest and susceptibility to Dengue fever and Dengue Haemorrhagic fever.
Read more

Secondary objectives:

  • To assess whether dengue serotype-specific neutralizing antibody titers and associated summary neutralization measure at 28 days post-dose 3 are related to the rate of occurrence of symptomatic Virologically-confirmed dengue infection after post-dose 3
  • To evaluate whether the dengue serotype-specific neutralizing antibody and associated summary neutralization measure at 28 days post-dose 3 are related to the level of vaccine efficacy against dengue viruses after post-dose 3.
Read the detailed description

The enrolled population will include both, virologically-confirmed (VC) dengue cases and subjects not having experienced a VC dengue infection (control subjects) from the first Proof of Concept efficacy study conducted in Thailand Analyses for correlates will be performed on samples collected in the context of the first proof of concept efficacy study. Sequencing of dengue viruses will also be done on samples collected within the same context. Immunogenetic testing will be performed on saliva samples collected at the study enrollment visit.

No intervention or vaccine will be provided or administered as part of this study.

Keywords
Dengue Fever, Dengue Haemorrhagic Fever, Tetravalent Dengue Vaccine
Medical subject headings
Dengue

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT02827162
Study groupRoleWhat they receive
Case D1Subject having experienced a Virologically confirmed dengue infection, from the first injection until the end of the active phase, excluding Case D3 subjects
Case D3Subject having experienced a Virologically confirmed dengue infection, from 28 days after the third injection until the end of the Active Phase of the proof of concept (PoC) efficacy study
Control ISubject having not experienced a Virologically confirmed dengue infection in the Active Phase of the PoC efficacy study, and belonging to the PoC efficacy study immunogenicity subset
Control ESubject having not experienced a Virologically confirmed dengue infection in the Active Phase of the PoC efficacy study, and not belonging to the PoC efficacy study immunogenicity subset

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Symptomatic Virologically confirmed dengue cases having occurred during the Active Phase of the first proof of concept efficacy study after post dose 1

    A symptomatic Virologically confirmed (VC) dengue case is defined as (i) Acute febrile illness with fever lasting for at least 1 day (temperature ≥37.5°C measured at least twice with an interval of at least 4 hours), and (ii) VC by reverse transcriptase polymerase chain reaction (RT PCR) and / or dengue non structural protein 1 (NS1) enzyme linked immunosorbent assay (ELISA) Antigen test

    Measured: 28 days post-injection 1 up to 4 years (the end of the Active phase)

  2. Neutralizing Antibody level against each of the four parental dengue virus serotype strains of Sanofi Pasteur's dengue vaccine constructs measured at 28 days post dose 3

    Measured: 28 days post-dose 3 (1 year post-dose 1)

  3. Number of probable Dengue fever and Dengue Hemorrhagic Fever grade I, II, III, and IV occurring during the Active Phase of the first PoC efficacy study after post dose 1.

    Probable Dengue fever is an acute febrile illness with two or more of the following manifestations: Headache, Retro orbital pain, Myalgia, Arthralgia, Rash, Haemorrhagic manifestations, and Leukopaenia

    Measured: Up to 6 months post-dose 1

Secondary outcomes (2)
  1. Number of Symptomatic Virologically confirmed dengue cases having occurred during the Active Phase of the first proof of concept efficacy study after post dose 3

    A symptomatic Virologically confirmed (VC) dengue case is defined as (i) Acute febrile illness with fever lasting for at least 1 day (temperature ≥37.5°C measured at least twice with an interval of at least 4 hours), and (ii) VC by reverse transcriptase polymerase chain reaction (RT PCR) and / or dengue non structural protein 1 (NS1) enzyme linked immunosorbent assay (ELISA) Antigen test

    Measured: 28 days post-injection 3 up to 4 years (end of the Active phase)

  2. Neutralizing Antibody level against each of the four parental dengue virus serotype strains of Sanofi Pasteur's dengue vaccine constructs measured at post dose 3

    Measured: Post-dose 3 (1 year post-dose 1)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Jul 2016 (estimated)
  2. Study start29 Mar 2016
  3. Primary completion27 Apr 2016
  4. Study completion27 Apr 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
334 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02827162
Sponsor's protocol ID
CYD59
Other IDs
U1111-1127-7875
Status last verified
Apr 2022
First submitted
29 Jun 2016
Last updated
25 Apr 2022
Results posted
No
Data monitoring committee
No
Individual data sharing
Yes: 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

Publications

  • Geretz A, Ehrenberg PK, Bouckenooghe A, Fernandez Vina MA, Michael NL, Chansinghakule D, Limkittikul K, Thomas R. Full-length next-generation sequencing of HLA class I and II genes in a cohort from Thailand. Hum Immunol. 2018 Nov;79(11):773-780. doi: 10.1016/j.humimm.2018.09.005. Epub 2018 Sep 19.

    PubMed 30243890
  • Thomas R, Chansinghakul D, Limkittikul K, Gilbert PB, Hattasingh W, Moodie Z, Shangguan S, Frago C, Dulyachai W, Li SS, Jarman RG, Geretz A, Bouckenooghe A, Sabchareon A, Juraska M, Ehrenberg P, Michael NL, Bailleux F, Bryant C, Gurunathan S. Associations of human leukocyte antigen with neutralizing antibody titers in a tetravalent dengue vaccine phase 2 efficacy trial in Thailand. Hum Immunol. 2022 Jan;83(1):53-60. doi: 10.1016/j.humimm.2021.09.006. Epub 2021 Oct 8.

    PubMed 34635391

Questions about this trial

What is this clinical trial studying?

An observational study of Dengue Fever and Dengue Haemorrhagic Fever, run by Sanofi Pasteur, a Sanofi Company at 1 site in Thailand.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 25 Apr 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Thailand. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Symptomatic Virologically confirmed dengue cases having occurred during the Active Phase of the first proof of concept efficacy study after post dose 1 (time frame: 28 days post-injection 1 up to 4 years (the end of the Active phase)). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02827162, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Apr 2022.

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