Challenge Test

This is a Phase 1, randomized, double-blind, placebo-controlled, dose escalation study. Forty-two flavivirus-naïve adults will be enrolled and will receive 3 administrations of VLPDEN-02 or control at days 0, 28, and 56. Three dose-cohorts of VLPDEN-02 will be evaluated (1 µg, 10 µg, and 100 µg) in a dose-escalation strategy. Each dose cohort will enroll 14 participants (10 VLPDEN-02 recipients and 4 control recipients).

This study aims to investigate the airway response to exercise and its association with breathlessness in double lung transplant recipients by comparing responses during 5-minute and 15-minute exercise durations.