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Author Spotlight: Innovative Microneedle-Based Strategies for Enhanced Exosome Delivery and Stability
Published on: July 12, 2024
Recent advances in microneedle-based drug delivery: Special emphasis on its use in paediatric population
Sanjukta Duarah1, Manisha Sharma1, Jingyuan Wen1
1School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, New Zealand.
Insights
Microneedle technology offers a minimally invasive way to improve transdermal drug delivery, especially for children. This approach overcomes skin barrier challenges for effective systemic delivery of various therapeutic molecules.
Area of Science:
- Biomedical Engineering
- Pharmaceutical Sciences
- Dermatology
Background:
- Transdermal drug delivery bypasses oral and parenteral routes, offering advantages for pediatric patients by addressing swallowing difficulties and needle phobia.
- The stratum corneum presents a significant barrier to effective transdermal delivery of macromolecules and genetic materials.
- Microneedle technology has emerged as a promising strategy to overcome the stratum corneum barrier through minimally invasive micro-channels.
Purpose of the Study:
- To review the evolution and current state of microneedle technology for drug delivery.
- To summarize research on microneedle design, fabrication, materials, and applications, particularly in pediatric drug delivery.
- To discuss clinical translation progress, regulatory aspects, and future prospects of microneedle technology.
Main Methods:
- Comprehensive literature review of microneedle technology research.
- Analysis of microneedle types, fabrication strategies, and material properties (biodegradability, biocompatibility).
- Examination of studies focusing on microneedle-mediated drug delivery, especially for pediatric populations.
Main Results:
- Significant advancements in microneedle design and fabrication have been made.
- Microneedles demonstrate potential for effective transdermal delivery of molecules previously limited by the stratum corneum.
- Research highlights successful applications in pediatric drug delivery, with ongoing clinical translation and regulatory evaluations.
Conclusions:
- Microneedle technology represents a significant advancement in transdermal drug delivery, overcoming key limitations of conventional methods.
- Further research can enhance the therapeutic efficiency of microneedle-based delivery for a wider range of molecules, particularly in pediatric care.
- The technology shows promise for broader clinical adoption and commercialization, pending regulatory approvals.
Abstract:
Transdermal drug delivery offers several attractive advantages over the traditional oral and parenteral routes. Particularly, in case of paediatric patients, it helps to overcome the issues specific to this population, such as difficulty in swallowing and palatability of oral medicines as well as fear and pain associated with needles. However, due to the formidable barrier characteristic of the stratum corneum, it fails in the effective systemic delivery of broad range of therapeutic molecules, especially macromolecules and genetic material. Over the last two decades, microneedle technology has been portrayed as a strategy to infringe the stratum corneum, in a minimally invasive manner, and enable the successful passage of molecules by creating transient channels across the skin. There has been an exponential surge in the number of studies exploring the design, development and fabrication of microneedles. This article reviews the evolution of microneedle technology and provides a comprehensive summary of microneedle research to date. It provides a detailed overview of the microneedle types, advanced fabrication strategies including the biodegradability and compatibility of the new materials used in fabrication. Research on microneedle-mediated paediatric drug delivery as well as insights on the application of this novel technology has been discussed. The up-to-date progress in clinical translation of microneedles and the regulatory requirements for their commercialization are highlighted along with a brief perspective on the future prospects of microneedle-mediated paediatric drug delivery. This review proposes that advanced research can further contribute to the improved therapeutic efficiency of microneedle-based delivery of numerous molecules, which are otherwise difficult to administer via the conventional transdermal delivery mechanisms.
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