Study to Investigate the Safety and Immunogenicity of a Tetravalent Chimeric Dengue Vaccine in Healthy Volunteers Between the Ages of 1.5 - 45 Years

Healthy Clinical Trial

Official title: A Double-Blind, Randomized, Placebo-Controlled, Age Descending and Expansion Phase 2 Study to Investigate the Safety and Immunogenicity of a Tetravalent Chimeric Dengue Vaccine in Healthy Volunteers Between the Ages of 1.5 - 45 Years

Status Completed

Clinical Trial Summary

The purpose of this study is to assess the safety of Takeda's tetravalent dengue vaccine (TDV) (previously DENVax) administered subcutaneously in healthy adults and children. In addition the antibody response to the four dengue virus serotypes will be evaluated.

Clinical Trial Description

The vaccine tested in this study was tetravalent dengue vaccine (TDV). TDV was tested to assess safety and immunogenicity in healthy adults and children living in dengue endemic countries.

The study enrolled 360 healthy participants. The study was conducted in 2 parts, Part 1 - age descending and and Part 2 - expansion - ages 1.5-11 years. Participants were allocated to one of the four age cohorts in Part 1 (21 to 45 years, 12 to 20 years, 6 to 11 years, and 1.5 to 5 years) and expansion age cohort 1.5-11 years in Part 2. Participants were randomized in 2:1 ratio and in 3: 1 ratio in Part 1 and 2 respectively to receive:

• TDV 0.5 mL SC injection

• Placebo (inactive solution) - this is a solution that looks like the study drug but has no active ingredient

This multi-center trial was conducted worldwide. The overall time to participate in this study was up to 37 months (including screening period). Participants made multiple visits to the clinic including a final visit at Day 1080. ;

Related Conditions & MeSH terms

• Dengue
• Healthy

• NCT number: NCT01511250
• Study type: Interventional
• Source: Takeda
• Status: Completed
• Phase: Phase 2
• Start date: November 16, 2011
• Completion date: April 15, 2016