Pulsatile release compositions and methods for enhanced intestinal drug absorption
申请人:Weinbach Susan
公开号:US20050196443A1
公开(公告)日:2005-09-08
Delayed release oral pharmaceutical formulations and methods for enhanced intestinal drug absorption. The formulation comprises a first population of carrier particles comprising a drug and a penetration enhancer which are released at a first location in the intestine, and a second population of carrier particles comprising a penetration enhancer and a delayed release coating or matrix. This penetration enhancer is released at a second location in the intestine downstream from the first location and enhances absorption of the drug when it reaches the second location.
occurring amino acids with the aim to improve EphA2receptor inhibition. Structure-activityrelationships indicate that conjugation of cholanicacid with linear amino acids of small size leads to effective EphA2antagonists whereas the introduction of aromatic amino acids reduces the potency in displacement studies. The β-alanine derivative 4 was able to disrupt EphA2-ephrinA1 interaction in the micromolar