Cohort Event Monitoring for Dengvaxia®, CYD-TDV Dengue Vaccine

Study Overview
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Brief Summary
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The aim of this study is to evaluate the safety profile of Dengvaxia® when used in the real-world immunization setting Primary Objective: To measure the incidence of selected adverse events (AEs) and serious AEs (SAEs) occurring over a period of six (6) months after each Dengvaxia® dose administration; To quantify the association between Dengvaxia® and each of the selected AEs and SAEs for which a risk window after vaccination can be defined, using estimates of relative risk To monitor the occurrence and frequency of hospitalized dengue disease as well as any other SAEs leading to hospitalization or death, including new and previously unrecognized SAEs, following Dengvaxia® administration on a longer term (up to 5 years after the first Dengvaxia® dose administration. Secondary objectives: To identify risk factors for hospitalized dengue disease (severe or not) among subjects vaccinated with Dengvaxia®; To describe the frequency of hospitalized dengue disease and/or other SAEs or selected AEs according to the number of Dengvaxia® doses and/or interval between doses.

Detailed Description
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This is a prospective multi-national non-interventional study that includes two components of Cohort Event Monitoring (i) Short-term safety surveillance with a follow-up of 6 months after each Dengvaxia® dose administration and (ii) a long-term safety surveillance with a follow-up of five years after the first dose. No vaccine will be provided as part of this study. Study population will be identified in a convenient sample of sites as representative as possible of vaccination centers in each country. Subjects who received their first dose of Dengvaxia® at participating sites during the recruitment period and who meet the eligibility criteria will be asked to participate. After enrollment, vaccinees will be contacted periodically by telephone, e-mail, or Short Message Service (SMS) during follow-up for the identification of outcomes and Dengvaxia® vaccination status.

Official Title
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Post-Authorization Safety Study: Cohort Event Monitoring for Dengvaxia®, CYD-TDV Dengue Vaccine

Conditions
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Dengue Fever, Dengue Hemorrhagic Fever

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Subjects who received the first dose of Dengvaxia® across all age groups, even if vaccination was given outside of local specific label indications or recommendations Informed consent form (ICF) or Assent form (AF) has been signed and dated by the subject (based on local regulations), and/or ICF has been signed and dated by the parent(s) or another legal acceptable representative (and by an independent witness if required by local regulations) Subjects for whom a telephone contact or an e-mail address is available. Exclusion Criteria: None

Ages Eligible for Study
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Minimum Age: 9 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of subjects with selected adverse events leading to a medical consultation, emergency room visit or hospitalization occurring during the short term surveillance period of 6 months after each dose of Dengvaxia® |  | 6 months post-vaccination | 
| Percentage of subjects hospitalized with dengue disease (regardless of severity and laboratory confirmation of diagnosis) after each dose of Dengvaxia®. |  | 6 months post-vaccination | 
| Percentage of subjects with any other serious adverse events (SAEs) occurring during the short term surveillance, and SAEs leading to hospitalization or death occurring during the long term surveillance |  | Up to 5 years post-vaccination | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Dengvaxia®, Dengue Fever, Dengue Hemorrhagic Fever