Oral inactivated non-typeable Haemophilus influenzae vaccine for prevention of acute bronchitis episodes in moderate to severe airway disease

Phase 2, randomised trial in acute bronchitis and chronic obstructive pulmonary disease (COPD) comparing HI-1-164-AS active tablets with Placebo tablets (2 arms). Primary endpoints: Number of episodes of acute bronchitis during the study, Proportion of subjects experiencing an episode of acute bronchitis during the study and 2 more. Started Mar 2006; status: completed.