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DengueNCT03465254

Dengue Serostatus Study in the Philippines

An observational study of Dengue and Severe Dengue, run by University of the Philippines.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This is an observational study for 5 years, and aims to determine the risk of developing dengue among Philippine children who are eligible to receive the dengue vaccine during the DOH mass dengue vaccination, by dengue serostatus at baseline. Read more about this study

Who is it for?
Ages 9 to 14 yearsHealthy volunteers can take part
Conditions the study is for
Dengue, Severe Dengue, Dengue Fever
Type of treatment
Vaccines
How many people
2,996 participants
Where
No sites listed yet
Study dates
Nov 2016to Jun 2023
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 9 to 14 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Study population: Children in selected study areas in Region 7, aged 9-14 years old who are considered eligible to be included in the DOH dengue mass vaccination

Who may be able to join

  • Provide signed informed consent and assent (as applicable)
  • Be a child belonging to the specified age group and resident of the targeted communities of the DOH dengue mass immunization
  • Be eligible to receive dengue vaccine during the DOH dengue mass immunization in 2017

Who cannot join

  • Any subject whose parent/guardian refuse to provide informed consent and/or assent
  • Children who do not belong to the specified age groups and not residents of the targeted communities
  • Children <9 years old
  • Children with history of bleeding disorder
  • Any subject previously enrolled in a dengue vaccine clinical trial

About this study

Official title: Effect of Baseline Dengue Serostatus Among Tetravalent Dengue Vaccine CYDTDV (Dengvaxia®) Recipients on Subsequent Virologically Confirmed Dengue in the Philippines

This is an observational study for 5 years, and aims to determine the risk of developing dengue among Philippine children who are eligible to receive the dengue vaccine during the DOH mass dengue vaccination, by dengue serostatus at baseline.

Read the detailed description

This is a cohort study that aims to determine the relative risk of developing virologically-confirmed dengue among Philippine children who are eligible to receive dengue vaccine during the DOH Mass Dengue Vaccination. Additionally, it also aims to determine the relative risk of developing severe and/or hospitalized virologically-confirmed dengue among Philippine children who received the Dengue vaccine, describe the epidemiologic trends and characteristics of virologically-confirmed dengue among these children, and assess the performance of simpler tests such as dried blood spots and serum IgG for the assessment of dengue seroprevalence at the population level. We will enroll children who are residents of selected areas in Region 7, Philippines. Children should be eligible to participate in the Department of Health mass dengue vaccination. They will be prospectively venipunctured for baseline dengue serologic status. The blood samples will be stored for serologic testing using neutralization tests and commercial IgG tests. Children in the cohort will be followed up, and those who present with <5 days of fever will be identified and blood drawn for dengue LAMP and RT-PCR.

Medical subject headings
Dengue, Severe Dengue

What participants receive

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

Study groups in NCT03465254
Study groupRoleWhat they receive
CohortRecruited members of the cohort are children aged 9-14 years old and eligible to receive the dengue vaccine at the time of the initiation of community-based dengue immunization program of the Department of Health.

What is being measured

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

  1. virologically-confirmed dengue (VCD)

    The primary outcome measure is virologically confirmed dengue by RT-PCR

    Measured: 5 years

Timeline

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

  1. First posted14 Mar 2018
  2. Study startNov 2016
  3. Primary completion31 Oct 2022
  4. Study completionJun 2023 (estimated)

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
Cohort
Time perspective
Prospective
Enrolment
2,996 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03465254
Sponsor's protocol ID
UPM REB 2016-435-01
Status last verified
May 2023
First submitted
6 Mar 2018
Last updated
17 May 2023
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Undecided

Publications

  • Mpingabo PI, Ylade M, Aogo RA, Crisostomo MV, Thiono DJ, Daag JV, Agrupis KA, Escoto AC, Raimundi-Rodriguez GL, Odio CD, Fernandez MA, White L, de Silva AM, Deen J, Katzelnick LC. Protective envelope dimer epitope-like antibodies are elicited against dengue virus in children after infection and vaccination. Sci Transl Med. 2025 Jul 23;17(808):eadq0571. doi: 10.1126/scitranslmed.adq0571. Epub 2025 Jul 23.

    PubMed 40700517
  • Lopez AL, Adams C, Ylade M, Jadi R, Daag JV, Molloy CT, Agrupis KA, Kim DR, Silva MW, Yoon IK, White L, Deen J, de Silva AM. Determining dengue virus serostatus by indirect IgG ELISA compared with focus reduction neutralisation test in children in Cebu, Philippines: a prospective population-based study. Lancet Glob Health. 2021 Jan;9(1):e44-e51. doi: 10.1016/S2214-109X(20)30392-2. Epub 2020 Nov 16.

    PubMed 33212030

Questions about this trial

What is this clinical trial studying?

An observational study of Dengue and Severe Dengue, run by University of the Philippines.

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 5 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: status not confirmed, as of the sponsor's last update on 17 May 2023. Status can change between updates, so confirm with the study contact before making plans.

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?

Results are not available in the source record.

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?

virologically-confirmed dengue (VCD) (time frame: 5 years). 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 NCT03465254, 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 17 May 2023.

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