Can Pharmacokinetic Studies Assess the Pulmonary Fate of Dry Powder Inhaler Formulations of Fluticasone Propionate?

In the context of streamlining generic approval, this study assessed whether pharmacokinetics (PK) could elucidate the pulmonary fate of orally inhaled drug products (OIDPs). Three fluticasone propionate (FP) dry powder inhaler (DPI) formulations (A-4.5, B-3.

Bioassay of salmeterol in children using methacholine challenge with impulse oscillometry.

Background: Bronchoprovocation with methacholine (MC) is the most sensitive method of determining bioequivalence of inhaled bronchodilators. FEV1 is used to determine the endpoint, but many children cannot perform spirometry reproducibly. The purpose of this study was to determine whether MC, using impulse oscillometry (IOS) as the endpoint, can differentiate between two doses of salmeterol (SM).

Intervention strategies for children poorly adherent with asthma medications; one center's experience.

Poor adherence to medications and other aspects of the treatment plan is common in pediatric patients with asthma, and is a common reason for inadequate asthma control. In selected patients we have used electronic monitoring of pulmonary function, behavior contracts, home nursing visits, and medical neglect reports in an attempt to improve adherence and asthma control. Improved outcomes were seen with the most aggressive intervention, home nursing, and medical neglect referral, but not with less aggressive measures.