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AEROSURF®

AEROSURF® (Lucinactant for Inhalation) – Aerosolized KL4 Surfactant

Surfactant therapy is a life-saving treatment for respiratory distress syndrome (RDS) and the primary therapy to address an underlying surfactant deficiency. Surfactants currently available in the U.S. are animal-derived and must be administered using invasive endotracheal intubation and mechanical ventilation, each of which may result in serious respiratory conditions and other complications. Intubation is associated with airway trauma and clinical instability that can extend beyond the respiratory system such as increased intracranial pressure and risk for brain injury. Mechanical ventilation is associated with ventilator-associated lung injury, chronic lung disease and increased risk of infection. To avoid these risks, many premature infants are initially treated with noninvasive respiratory support, such as nasal continuous positive airway pressure (nCPAP). Unfortunately, since nCPAP does not address the underlying surfactant deficiency, many premature infants respond poorly to nCPAP (typically within the first 72 hours of life) and may require intubation and delayed surfactant therapy (an outcome referred to as nCPAP failure). 1

 

 

In addition, many premature infants with RDS who receive surfactant therapy as initial therapy are capable of breathing without mechanical ventilation, but require surfactant therapy for RDS. Because surfactant therapy requires intubation, these infants generally are supported with mechanical ventilation for either a limited or extended period of time. If surfactant therapy could be administered noninvasively, neonatologists would be able to provide surfactant therapy to these premature infants without exposing them to the risks associated with intubation and mechanical ventilation.

AEROSURF® is an investigational combination drug/device product that combines Windtree’s proprietary KL4 surfactant with its novel aerosol delivery system (ADS), which is based primarily on its capillary aerosol generator technology. AEROSURF®  is being developed to enable administration of aerosolized KL4 surfactant to premature infants receiving nCPAP without invasive intubation and mechanical ventilation. Windtree believes that, if approved, AEROSURF®  will have the potential to transform the treatment of RDS, allow for earlier treatment of those premature infants who currently receive surfactants later in their course of treatment, decrease the morbidities and complications currently associated with surfactant administration, and reduce the number of premature infants who are subjected to invasive intubation and delayed surfactant therapy as a result of nCPAP failure.

Note: AEROSURF® is an investigational drug-device product that is not approved by the U.S. Food and Drug Administration.

Finer et al, “Early CPAP versus surfactant in extremely preterm infants,” N Engl J Med 2010;362(21):1970-9 (Finer, et al, NEJM 2010); Morely et al, “Nasal CPAP or Intubation at Birth for Very Preterm Infants,” N Engl J Med 2008;358:700-8 (Morely et al, NEJM 2008).