NCT03141138

Comparison of Tetravalent Dengue Virus Purified Inactivated Vaccine and Tetravalent Dengue Virus Live Attenuated Vaccine

A Phase 1, Randomized, Open-label, Comparison of Heterologous Prime-Boost Vaccination Schedules of Tetravalent Dengue Virus Purified Inactivated Vaccine (PIV) and Tetravalent Dengue Virus Live Attenuated Vaccine (LAV) in Healthy Adults

• Status: Unknown
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 40 (actual)
• Sponsor: U.S. Army Medical Research and Development Command · Federal
• Sex: All
• Age: 18 Years – 42 Years
• Healthy volunteers: Accepted

Summary

This study is a Phase 1, randomized, open-label study of the prime-boost vaccine candidates given in the prime-boost regimen previously demonstrated to have a high level of immunogenicity and immune durability: Day 0 prime (PIV) and Day 180 boost (LAV), and compare it with a previously untested schedule: Day 0 prime (PIV) and Day 90 boost (LAV) in order to define the potential tradeoff between potential immunogenicity, including cell-mediated immunity, and a more practical dosing schedule.

Detailed description

This study is a Phase 1, randomized, open-label, study with 2 treatment groups (N=40): Group 1 (n=20): TDENV-PIV 4 µg + Alum adjuvant (Day 0), TDENV-LAV F17 (Day 180) Group 2 (n=20): TDENV-PIV 4 µg + Alum adjuvant (Day 0), TDENV-LAV F17 (Day 90) Investigational Product Dosage, Schedule, and Mode of Administration: TDENV-PIV Dosage: 0.5 mL of DENV serotypes 1-4 (4 µg / serotype) in alum adjuvant Mode of administration: intramuscular (IM) into the subject's upper arm, deltoid area of the subject's arm; vaccination will be given in the non-dominant arm whenever possible TDENV-LAV F17 Dosage: 0.5 mL of the post-transfection LAV F17 vaccine Mode of administration: subcutaneously into the upper-outer triceps/deltoid area of the subject's arm; vaccination will be given in the non-dominant arm whenever possible Schedule Varied, 2 vaccinations per volunteer in a heterologous prime-boost strategy. First dose on Day 0 (PIV) AND a second dose (LAV) on Day 180 for group 1. First dose on Day 0 (PIV) AND a second dose (LAV) on Day 90 for group 2. This study is intended to further evaluate the safety and reactogenicity of 2 tetravalent dengue vaccine (TDENV) candidates administered in a heterologous prime boost fashion with PIV followed by LAV 180 days later and to evaluate the safety and reactogenicity of a previously untested vaccination schedule consisting of PIV followed by LAV 90 days later.

Conditions

• Dengue Virus

Interventions

Type	Name	Description
BIOLOGICAL	TDENV-PIV	Dosage: 0.5 mL of DENV serotypes 1-4 (4 µg / serotype) in alum adjuvant Mode of administration: intramuscular (IM) into the subject's upper arm, deltoid area of the subject's arm; vaccination will be given in the non-dominant arm whenever possible
BIOLOGICAL	TDENV-LAV F17	Dosage: 0.5 mL of the post-transfection LAV F17 vaccine Mode of administration: subcutaneously into the upper-outer triceps/deltoid area of the subject's arm; vaccination will be given in the non-dominant arm whenever possible.

Timeline

• Start date: 2017-11-08
• Primary completion: 2019-10-31
• Completion: 2021-12-31
• First posted: 2017-05-04
• Last updated: 2021-03-26

Locations

1 site across 1 country: United States

Regulatory

• FDA-regulated drug study