- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03803618
Dengue Effectiveness Study in the Philippines
May 16, 2023 updated by: University of the Philippines
Effectiveness of the Tetravalent Dengue Vaccine, CYD-TDV (Dengvaxia®) in the Philippines
This is an observational study that aims to determine the effectiveness of a tetravalent dengue vaccine (CYD-TDV) when given through a community-based immunization program against hospitalized and /or severe virologically confirmed dengue.
Study Overview
Status
Completed
Conditions
Detailed Description
This is a matched case-control study.
Cases will be children who are admitted with a clinical suspicion of dengue at the study hospitals and were eligible to have received the dengue vaccine during the mass immunization.
The outcome of interest is hospitalized and/or severe virologically-confirmed dengue and the exposure is receipt of the dengue vaccine.
Each case will be matched to two controls who were also eligible to have received the dengue vaccine and lives in the same area as the case.
Cases and controls will be matched by age and sex.
Study Type
Observational
Enrollment (Actual)
2081
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Michelle C. Ylade, MD, MSc
- Phone Number: 6322545205
- Email: mcylade@up.edu.ph
Study Contact Backup
- Name: Kristal An C. Agrupis, MD
- Phone Number: 6322545205
- Email: agrupiskristalan@gmail.com
Study Locations
-
-
Cebu
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Balamban, Cebu, Philippines
- Cebu Provincial Hospital - Balamban
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Bogo City, Cebu, Philippines
- Cebu Provincial Hospital - Bogo
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Danao, Cebu, Philippines
- Cebu Provincial Hospital - Danao
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Mandaue City, Cebu, Philippines
- Eversley Childs Sanitarium and General Hospital
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-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
9 years to 14 years (Child)
Accepts Healthy Volunteers
Yes
Sampling Method
Non-Probability Sample
Study Population
Individuals to be enrolled in the study as probable cases will be admitted patients in the hospital study sites who are residents of the area, eligible to have received the dengue vaccine at the time of the initiation of community-based dengue vaccination program, and suspected to have dengue.
Description
Inclusion Criteria:
CASE-CONTROL STUDIES
For a suspected case to be enrolled in the study, he/she should:
- Provide signed informed consent and assent (as applicable)
- Be within the age group eligible to receive the dengue vaccine at the time of mass vaccination (i.e. no condition that would have made him/her ineligible for dengue vaccination)
- Be admitted in any of the participating hospitals for suspected dengue
- Have ≤5 days history of fever.
- For the case to be included in the analysis, the participant must meet all the inclusion criteria above plus have virologically-confirmed dengue infection by RT-PCR
For controls to be recruited into the study, he/she should:
- Provide signed informed consent and assent (as applicable)
- Be age and sex-matched to the case
- Be from the same community as the matched case
- Be eligible to have received dengue vaccine during the community-based dengue immunization campaign in 2017 (i.e. no condition that would have made him/her ineligible for dengue vaccination)
- Have had no episode of clinically-diagnosed or laboratory-confirmed dengue fever from the start of the community -based dengue immunization campaign to the focal time (the date of onset of dengue fever in the matched case)
- Should not have been previously recruited as a control.
Exclusion Criteria:
• Any subject whose parent/guardian refuse to provide informed consent and/or assent.
In addition, the following conditions automatically exclude children from the dengue mass immunization:
- Children <9 years or adults older than 45 years of age
- Anyone who is allergic or has had an allergic reaction to a prior dose or to any component of the dengue vaccine
- Recipient of blood product in the last 3 months
- Immunocompromised individuals, due to but not limited to genetic defects, HIV infection, or therapies that affect the immune system such as high-dose corticosteroids or chemotherapy
- Recipient of any vaccine within the past month
- History of bleeding disorder
- Pregnant or breastfeeding women
- Enrolled in dengue vaccine Phase 3 clinical study
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
---|
Confirmed dengue case
Dengue cases who are 9-14 years old during the dengue mass vaccination program in Cebu with <5 days history of fever, admitted in the participating hospitals with dengue virus confirmation by RT-PCR
|
Control
Age and sex matched neighborhood controls
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
hospitalized and / or severe virologically confirmed dengue
Time Frame: 5 years
|
The primary outcome are children who are hospitalized and/or severe virologically confirmed dengue
|
5 years
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Investigators
- Principal Investigator: Jacqueline L. Deen, MD, UPM - NIH, Institute of Child Health and Human Development
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
September 1, 2017
Primary Completion (Actual)
November 30, 2022
Study Completion (Actual)
April 30, 2023
Study Registration Dates
First Submitted
January 10, 2019
First Submitted That Met QC Criteria
January 10, 2019
First Posted (Actual)
January 14, 2019
Study Record Updates
Last Update Posted (Actual)
May 17, 2023
Last Update Submitted That Met QC Criteria
May 16, 2023
Last Verified
May 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- UPM REB 2017-0237
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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