Drug Delivery to the Posterior Segment of the Eye: Biopharmaceutic and Pharmacokinetic Considerations

The treatment of the posterior-segment ocular diseases, such as age-related eye diseases (AMD) or diabetic retinopathy (DR), present a challenge for ophthalmologists due to the complex anatomy and physiology of the eye. This specialized organ is composed of various static and dynamic barriers that r...

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Main Authors: Rubén Varela-Fernández, Victoria Díaz-Tomé, Andrea Luaces-Rodríguez, Andrea Conde-Penedo, Xurxo García-Otero, Asteria Luzardo-Álvarez, Anxo Fernández-Ferreiro, Francisco J. Otero-Espinar
Format: Article
Language:English
Published: MDPI AG 2020-03-01
Series:Pharmaceutics
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Online Access:https://www.mdpi.com/1999-4923/12/3/269
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author Rubén Varela-Fernández
Victoria Díaz-Tomé
Andrea Luaces-Rodríguez
Andrea Conde-Penedo
Xurxo García-Otero
Asteria Luzardo-Álvarez
Anxo Fernández-Ferreiro
Francisco J. Otero-Espinar
author_facet Rubén Varela-Fernández
Victoria Díaz-Tomé
Andrea Luaces-Rodríguez
Andrea Conde-Penedo
Xurxo García-Otero
Asteria Luzardo-Álvarez
Anxo Fernández-Ferreiro
Francisco J. Otero-Espinar
author_sort Rubén Varela-Fernández
collection DOAJ
description The treatment of the posterior-segment ocular diseases, such as age-related eye diseases (AMD) or diabetic retinopathy (DR), present a challenge for ophthalmologists due to the complex anatomy and physiology of the eye. This specialized organ is composed of various static and dynamic barriers that restrict drug delivery into the target site of action. Despite numerous efforts, effective intraocular drug delivery remains unresolved and, therefore, it is highly desirable to improve the current treatments of diseases affecting the posterior cavity. This review article gives an overview of pharmacokinetic and biopharmaceutics aspects for the most commonly-used ocular administration routes (intravitreal, topical, systemic, and periocular), including information of the absorption, distribution, and elimination, as well as the benefits and limitations of each one. This article also encompasses different conventional and novel drug delivery systems designed and developed to improve drug pharmacokinetics intended for the posterior ocular segment treatment.
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spelling doaj.art-c812ef98945f4b819330a7ad7e35a1472022-12-22T01:59:16ZengMDPI AGPharmaceutics1999-49232020-03-0112326910.3390/pharmaceutics12030269pharmaceutics12030269Drug Delivery to the Posterior Segment of the Eye: Biopharmaceutic and Pharmacokinetic ConsiderationsRubén Varela-Fernández0Victoria Díaz-Tomé1Andrea Luaces-Rodríguez2Andrea Conde-Penedo3Xurxo García-Otero4Asteria Luzardo-Álvarez5Anxo Fernández-Ferreiro6Francisco J. Otero-Espinar7Department of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, SpainDepartment of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, SpainDepartment of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, SpainDepartment of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, SpainDepartment of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, SpainDepartment of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, SpainDepartment of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, SpainDepartment of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela (USC), Campus vida, 15782 Santiago de Compostela, SpainThe treatment of the posterior-segment ocular diseases, such as age-related eye diseases (AMD) or diabetic retinopathy (DR), present a challenge for ophthalmologists due to the complex anatomy and physiology of the eye. This specialized organ is composed of various static and dynamic barriers that restrict drug delivery into the target site of action. Despite numerous efforts, effective intraocular drug delivery remains unresolved and, therefore, it is highly desirable to improve the current treatments of diseases affecting the posterior cavity. This review article gives an overview of pharmacokinetic and biopharmaceutics aspects for the most commonly-used ocular administration routes (intravitreal, topical, systemic, and periocular), including information of the absorption, distribution, and elimination, as well as the benefits and limitations of each one. This article also encompasses different conventional and novel drug delivery systems designed and developed to improve drug pharmacokinetics intended for the posterior ocular segment treatment.https://www.mdpi.com/1999-4923/12/3/269ocular pharmacokineticsocular drug delivery systemsocular routes of drug administrationintravitreal administrationtopical administration
spellingShingle Rubén Varela-Fernández
Victoria Díaz-Tomé
Andrea Luaces-Rodríguez
Andrea Conde-Penedo
Xurxo García-Otero
Asteria Luzardo-Álvarez
Anxo Fernández-Ferreiro
Francisco J. Otero-Espinar
Drug Delivery to the Posterior Segment of the Eye: Biopharmaceutic and Pharmacokinetic Considerations
Pharmaceutics
ocular pharmacokinetics
ocular drug delivery systems
ocular routes of drug administration
intravitreal administration
topical administration
title Drug Delivery to the Posterior Segment of the Eye: Biopharmaceutic and Pharmacokinetic Considerations
title_full Drug Delivery to the Posterior Segment of the Eye: Biopharmaceutic and Pharmacokinetic Considerations
title_fullStr Drug Delivery to the Posterior Segment of the Eye: Biopharmaceutic and Pharmacokinetic Considerations
title_full_unstemmed Drug Delivery to the Posterior Segment of the Eye: Biopharmaceutic and Pharmacokinetic Considerations
title_short Drug Delivery to the Posterior Segment of the Eye: Biopharmaceutic and Pharmacokinetic Considerations
title_sort drug delivery to the posterior segment of the eye biopharmaceutic and pharmacokinetic considerations
topic ocular pharmacokinetics
ocular drug delivery systems
ocular routes of drug administration
intravitreal administration
topical administration
url https://www.mdpi.com/1999-4923/12/3/269
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