ARIKAYCE for Non-CF Bronchiectasis Patients with Pseudomonas Lung Infections
We believe ARIKAYCE has the potential to be used to treat non-CF bronchiectasis characterized by Pseudomonas lung infections. However, we are currently concentrating our development efforts on the treatment of Pseudomonas lung infections in CF patients and patients with NTM lung infections. We will evaluate our development and commercialization strategies for this indication when we complete our phase 2 study in patients with NTM infections.
Non-CF bronchiectasis is a serious pulmonary condition characterized by localized, irreversible enlargement of the bronchial tubes. Accumulation of mucus in the bronchi leads to frequent infections, which causes inflammation and further reduces lung function. Patients evolve to a chronic inflammation-infection cycle. Disease burden has primarily been linked to productive cough and high levels of sputum production.
It is estimated that there are more than 250,000 non-CF bronchiectasis patients in the US (SDI Innovations in Healthcare Analytics, 2008), of which approximately 30% of non-CF bronchiectasis patients are infected with Pseudomonas (Wilson, C.B., et al., Eur Respir, 1997, 10(8):1754-1760); Nicotra, M.B., et al., Chest, 1995 108(4):955-961). Currently there are no approved antibiotics for this indication. When bronchiectasis patients become infected with Pseudomonas , they tend to have more frequent exacerbations and hospitalizations and are more frequent users of antibiotics.
ARIKAYCE was granted orphan drug status in the US for the treatment of bronchiectasis in patients with Pseudomonas or other susceptible pathogens.
In May 2009 we completed our randomized, placebo controlled US phase 2 study (TR02-107) of ARIKAYCE in the treatment of chronic Pseudomonas infection in non-CF patients with bronchiectasis.