Pedro Sebastián Londoño Ruiz, M. Serafini, I. Alves, Diana Marcela Aragón Novoa
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Recent Progress in Self-Emulsifying Drug Delivery Systems: A Systematic Patent Review (2011-2020).
Self-emulsifying drug delivery systems (SEDDS) are lipid-based isotropic mixtures that enhance the bioavailability of poorly water-soluble drugs and reduce the possible side effects, offering a wide variety of treatments for several pathologies. The aim of this review is to discuss the state of the art of patents for this drug delivery system by studying recent patent applications (2011 to 2020). We performed a thorough screening using the European Patent Office's Espacenet database, from which 37 inventions were selected and fully studied. China had more patent applications, and the articles published about SEDDS exceeds both in number and technological advance the submitted inventions. Nevertheless, the patents presented herein are innovative to address known issues to traditional SEDDS, including storage and formulation stability, solid formulations, acute gastrointestinal toxicity from surfactants, and drug delivery through alternative routes of administration. This study also revealed that release behavior for SEDDS and associated pharmacokinetics were not completely disclosed by the inventors of the patents and that further studies are required.
期刊介绍：
Therapeutic uses of a variety of drug carrier systems have significant impact on the treatment and potential cure of many chronic diseases, including cancer, diabetes mellitus, psoriasis, parkinsons, Alzheimer, rheumatoid arthritis, HIV infection, infectious diseases, asthma, and drug addiction. Scientific efforts in these areas are multidisciplinary, involving the physical, biological, medical, pharmaceutical, biological materials, and engineering fields.
Articles concerning this field appear in a wide variety of journals. With the vast increase in the number of articles and the tendency to fragment science, it becomes increasingly difficult to keep abreast of the literature and to sort out and evaluate the importance and reliability of the data, especially when proprietary considerations are involved. Abstracts and noncritical articles often do not provide a sufficiently reliable basis for proper assessment of a given field without the additional perusal of the original literature. This journal bridges this gap by publishing authoritative, objective, comprehensive multidisciplinary critical review papers with emphasis on formulation and delivery systems. Both invited and contributed articles are subject to peer review.
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