Pulsatile Drug Delivery Systems for the Treatment of Asthma

Asthma, a chronic respiratory disease, often exhibits nocturnal exacerbations, presenting a challenge for conventional therapies. Pulsatile drug delivery systems, designed to release medication at specific times, offer a chronotherapeutic approach to address this issue. This review explores the application of pulsatile drug delivery in asthma management, focusing on its potential to target nighttime symptoms. We discuss the circadian rhythm of asthma, the principles of pulsatile drug delivery, and various technological approaches employed, including capsular, osmotic, and coated tablet systems. Preclinical studies demonstrating the feasibility of achieving controlled lag times and drug release profiles are highlighted, along with the anti-asthmatic drugs commonly investigated. The review also addresses the challenges associated with the development and clinical translation of these systems and outlines potential future research directions, such as the use of novel materials, targeted delivery, personalized medicine, and integration with smart technologies. Ultimately, pulsatile drug delivery systems hold significant promise for improving asthma treatment, particularly nocturnal asthma, by optimizing drug delivery timing to enhance efficacy and patient compliance while minimizing side effects.