Ocular Drug Delivery: Advances, Challenges and Applications PDF Download

Author: Richard T. Addo
Publisher: Springer
ISBN: 3319476912
Category : Medical
Languages : en
Pages : 190

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Book Description
The eye is a computerized system that has been designed for self-defense, and these defense mechanisms create challenges in administration of medications to the eye. Therefore, ocular drug delivery has been a major challenge to drug delivery researchers. There are on-going studies, in search of treatment especially for the diseases affecting the posterior segment of the eye. This book gives and overview of the background of ocular drug delivery and is unique for pharmacists, medical practitioners, students and drug delivery researchers.

Author: Deepak Thassu
Publisher: CRC Press
ISBN: 1439848009
Category : Medical
Languages : en
Pages : 477

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Book Description
Drug discovery for ocular diseases has taken great strides in the last two decades. From cornea to choroid, new drugs have been formulated to address a great variety of ocular diseases. Yet without good drug delivery systems, these drugs are less effective than they might be or could even cause serious side effects. Ocular Drug Delivery Systems: Barriers and Application of Nanoparticulate Systems presents research on the development of currently marketed devices and recent trends in the topical delivery of drugs to the posterior of the eye. With contributions from leading pharmaceutical researchers and industry experts, eye researchers, surgeons, pharmacologists from academia, the National Eye Institute, and leading ophthalmic companies such as Pfizer, Allergan, and Novartis, the book presents the state of the art in the use of nanoparticles in ocular drug delivery systems and also sets the stage for future developments. This volume provides both a current evaluation and a future roadmap for developments in ocular drug delivery. The subjects range from biological needs to material challenges and finally to clinical applications for improving drug delivery for conditions where treatments already exist. It also explores areas where effective drugs may be currently available but yet need a safe, efficient, and efficacious delivery vehicle.

Author: Ashim K. Mitra
Publisher: Bentham Science Publishers
ISBN: 1608051757
Category : Medical
Languages : en
Pages : 301

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Book Description
A multidisciplinary approach is increasingly being adapted by the Pharmaceutical industry to tackle several challenges in developing efficacious treatment solutions. The field of Ophthalmology is no less different. Treatise on Ocular Drug Delivery is a unique collection of information put together by various experts in the field. One of the major goals behind this volume is to link clinical information with the current strategies employed in ocular drug delivery. This monograph covers a range of topics on ocular pharmacology. Chapters in the e-book cover several aspects of drug delivery research such as the biochemical background of specific eye diseases, challenges for ocular drug delivery, the role of influx and efflux transporters, novel drug delivery systems, pharmacokinetics, regulatory aspects, and patenting opportunities for researchers. This E-Book would serve as a suitable reference for pharmacy graduates, medical students, professional scientists and ophthalmic clinicians in academic and industrial laboratories.

Author: Ashim K. Mitra
Publisher: CRC Press
ISBN: 9780367446765
Category :
Languages : en
Pages : 847

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Book Description
The second edition of this text assembles significant ophthalmic advances and encompasses breakthroughs in gene therapy, ocular microdialysis, vitreous drug disposition modelling, and receptor/transporter targeted drug delivery.

Author: Ryan F. Donnelly
Publisher: John Wiley & Sons
ISBN: 1119305179
Category : Science
Languages : en
Pages : 458

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Book Description
Provides comprehensive coverage of microneedles for delivering and monitoring patient drugs and vaccines Microneedles are an incredibly active research area and have the potential to revolutionize the way many medicines and vaccines are delivered. This comprehensive research book covers the major aspects relating to the use of microneedle arrays in enhancing both transdermal and intradermal drug delivery and provides a sound background to the use of microneedle arrays in enhanced delivery applications. Beginning with a history of the field and the various methods employed to produce microneedles from different materials, Microneedles for Drug and Vaccine Delivery and Patient Monitoring discusses the penetration of the stratum corneum by microneedles and the importance of application method and force and microneedle geometry (height, shape, inter-needle spacing). Transdermal and intradermal delivery research using microneedles is comprehensively and critically reviewed, focusing on the outcomes of in vivo animal and human studies. The book describes the important topics of safety and patient acceptability studies carried out to date. It also covers in detail the growing area for microneedle use in the monitoring of interstitial fluid contents. Finally, it reviews translational and regulatory developments in the microneedles field and describes the work ongoing in industry. The only book currently available on microneedles Filled with tables, graphs, and black and white images (photographs, micrographs) Authored by four experts in pharmaceutics Microneedles for Drug and Vaccine Delivery and Patient Monitoring is an ideal source for researchers in industry and academia working on drug delivery and transdermal delivery in particular, as well as for advanced students in pharmacy and pharmaceutical sciences.

Author: K. L. Mittal
Publisher: John Wiley & Sons
ISBN: 1119640253
Category : Technology & Engineering
Languages : en
Pages : 432

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Book Description
Understanding the phenomenon of bioadhesion i.e. its theories or mechanism(s) are of critical importance in developing optimum bioadhesive polymers (used in bioadhesives). Such bioadhesive polymers are the key for exhibiting the process of bioadhesion, controlled/sustained release of drugs, and drug targeting. The use of bioadhesives restricts the delivery system to the site of interest and thus offers a useful and efficient technique for targeting a drug to the desired location for a prolonged duration. This book addresses the various relevant aspects of bioadhesives in drug delivery in an easily accessible and unified manner. The book containing 12 chapters written by eminent researchers from many parts of the globe is divided into three parts: Part 1: Fundamental Aspects; Part 2: Bioadhesive Formulations; Part 3: Drug Delivery Applications. The topics covered include: Theories and mechanisms of bioadhesion; bioadhesive polymers for drug delivery applications; methods for characterization of bioadhesiveness of drug delivery systems; bioadhesive films and drug delivery applications; bioadhesive nanoparticles; and bioadhesive hydrogels and applications ocular biodhesive drug delivery systems; buccal bioadhesive drug delivery systems; gastrointestinal bioadhesive drug delivery systems ; nasal bioadhesive drug delivery systems; vaginal drug delivery systems; pulmonary bioadhesive drug delivery systems.

Author: Manish Kumar
Publisher: GRIN Verlag
ISBN: 3346902722
Category : Medical
Languages : en
Pages : 46

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Book Description
Academic Paper from the year 2023 in the subject Medicine - Pharmacology, Pharmacy, , course: M.Pharmacy, language: English, abstract: Ocular drug delivery plays a vital role in the treatment of various eye diseases and conditions. The unique anatomical and physiological characteristics of the eye pose significant challenges for effective drug delivery. Over the years, extensive research efforts have been dedicated to developing innovative strategies and formulations to overcome these challenges and improve therapeutic outcomes. This review provides an overview of recent advances in ocular drug delivery, highlighting the key challenges faced and discussing the potential future directions in this field. The first section of the review focuses on the barriers to ocular drug delivery, including the tear film, cornea, conjunctiva, and blood-ocular barriers. These barriers limit the bioavailability and efficacy of drugs administered to the eye. Strategies to bypass or overcome these barriers, such as the use of penetration enhancers, nanoparticles, and prodrug approaches, are discussed. The second section explores various ocular drug delivery systems, including eye drops, ophthalmic gels, ocular inserts, and contact lens-based delivery systems. Each system is examined in terms of its advantages, limitations, and recent advancements. Special attention is given to sustained drug release systems that aim to prolong drug residence time on the ocular surface and improve patient compliance. Next, the review delves into the role of nanotechnology in ocular drug delivery. Nanoparticles, liposomes, and nanomicelles have shown promise in improving drug solubility, stability, and ocular bioavailability. The use of novel nanomaterials and their surface modifications for targeted drug delivery to specific ocular tissues is also discussed. Furthermore, the review highlights emerging techniques in ocular drug delivery, such as microneedles, hydrogels, and gene therapy-based approaches. These technologies offer exciting prospects for precise and personalized treatment of ocular diseases. Finally, the review concludes by discussing the regulatory considerations, safety aspects, and clinical translation of ocular drug delivery systems. The importance of collaboration between researchers, clinicians, and regulatory bodies in advancing this field is emphasized.

Author: Jayvadan K. Patel
Publisher: Springer
ISBN: 3319958070
Category : Medical
Languages : en
Pages : 490

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Book Description
This book addresses the issues relating to a wide variety of ocular diseases from which millions of people suffer. Long-term challenges include visual impairment and ocular blindness. Certain ocular diseases are quite rare, whereas others, such as cataracts, age-related macular degeneration (AMD), and glaucoma, are very common, especially in the aging population. A rapid expansion of new technologies in ocular drug delivery and new drug candidates, including biologics, to treat these challenging diseases in the retina and posterior segments of the eye have recently emerged. These approaches are necessary because the eye has many unique barriers to drug delivery. Thus, this timely reference Drug Delivery for the Retina and Posterior Segment Disease compiles and analyzes recent advances in the research and development of drug delivery systems for retina and posterior segment diseases of the eye, with an emphasis on the use of implantable devices, iontophoresis as well as micro- and nanoparticles.

Author: Thomas Yorio
Publisher: Academic Press
ISBN: 0080556779
Category : Science
Languages : en
Pages : 537

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Book Description
Ocular Therapeutics: Eye on New Discovery focuses on emerging areas in ocular research, from new approaches to dry eye to gene therapy in the management of retinal diseases. This comprehensive book features more than 25 chapters of information that will be vital for ocular investigators and ophthalmologists bringing them new information on promising therapeutics. It is the intent of this book to provide not only information on current approaches to treatment, but also in giving the reader a greater understanding as to what may become available for treating a number of important eye diseases. Each chapter features some new aspect of treatment that holds great promise for the future. The approach has been to concentrate on those areas of ocular diseases that are more prevalent. It also features new insight for drug delivery and for managing devasting diseases, such as macula edema and glaucoma, two of the leading causes of blindness in the United States. This book will serve as an important resource as it contains a number of relevant references highlighted for their importance to the field. New investigators will be able to obtain an historical perspective for each of the topics and to develop an understanding of the new research directions that are underway. Ocular Therapeutics: Eye on New Discovery is more than a reference book, as it also provides an important glimpse into the near future. * Contains information that is vital for ocular investigators and ophthalmologists bringing them new information on promising therapeutics.* Provides not only information on current approaches to treatment, but also gives the reader a greater understanding as to what may become available for treating a number of important eye diseases.* Historical perspective for each of the topics as well as an important glimpse into the near future to develop an understanding of the new research directions underway.* New insight for drug delivery and for managing devastating diseases, such as macula edema and glaucoma, two of the leading causes of blindness in the United States

Author: Yogeshwar Bachhav
Publisher: John Wiley & Sons
ISBN: 3527343962
Category : Science
Languages : en
Pages : 470

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Book Description
Teaches future and current drug developers the latest innovations in drug formulation design and optimization This highly accessible, practice-oriented book examines current approaches in the development of drug formulations for preclinical and clinical studies, including the use of functional excipients to enhance solubility and stability. It covers oral, intravenous, topical, and parenteral administration routes. The book also discusses safety aspects of drugs and excipients, as well as regulatory issues relevant to formulation. Innovative Dosage Forms: Design and Development at Early Stage starts with a look at the impact of the polymorphic form of drugs on the preformulation and formulation development. It then offers readers reliable strategies for the formulation development of poorly soluble drugs. The book also studies the role of reactive impurities from the excipients on the formulation shelf life; preclinical formulation assessment of new chemical entities; and regulatory aspects for formulation design. Other chapters cover innovative formulations for special indications, including oncology injectables, delayed release and depot formulations; accessing pharmacokinetics of various dosage forms; physical characterization techniques to assess amorphous nature; novel formulations for protein oral dosage; and more. -Provides information that is essential for the drug development effort -Presents the latest advances in the field and describes in detail innovative formulations, such as nanosuspensions, micelles, and cocrystals -Describes current approaches in early pre-formulation to achieve the best in vivo results -Addresses regulatory and safety aspects, which are key considerations for pharmaceutical companies -Includes case studies from recent drug development programs to illustrate the practical challenges of preformulation design Innovative Dosage Forms: Design and Development at Early Stage provides valuable benefits to interdisciplinary drug discovery teams working in industry and academia and will appeal to medicinal chemists, pharmaceutical chemists, and pharmacologists.