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Developing a robust in vitro release method for a polymeric nanoparticle: Challenges and learnings.

Heather Mead1, Vasiliki Paraskevopoulou1, Natalie Smith1

  • 1New Modalities & Parenteral Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Macclesfield, UK.

International Journal of Pharmaceutics
|August 16, 2023
PubMed
Summary
This summary is machine-generated.

Developing robust in vitro release methods for nanomedicines is crucial for targeted drug delivery. This study details creating a reliable method for polymeric nanoparticles to ensure clinically relevant data for long-acting injectables.

Keywords:
Dispersion releaserIn vitro releaseNanoDisPolymeric nanoparticles

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Area of Science:

  • Nanomedicine
  • Pharmaceutical Sciences
  • Drug Delivery

Background:

  • Nanomedicines offer targeted therapeutic delivery, improving efficacy and reducing toxicity compared to conventional treatments.
  • Long-acting injectable formulations are gaining importance for patient convenience and improved quality of life.
  • Developing in vitro release (IVR) methods for nanomedicines is complex due to diverse formulations and release mechanisms.

Purpose of the Study:

  • To detail the development of an in vitro release method for a polymeric nanoparticle formulation.
  • To establish a robust analytical method for generating clinically relevant release data for modified-release nanomedicines.
  • To address the limited regulatory guidance for parenteral product release methods.

Main Methods:

  • Extensive in vitro release method development was performed on a polymeric nanoparticle.
  • Optimization of release media composition.
  • Selection of appropriate apparatus and sampling techniques to isolate released drug.

Main Results:

  • A robust analytical method was successfully developed for polymeric nanoparticles.
  • The method allows for the separation of released drug from the formulation.
  • The developed method aims to generate clinically relevant in vitro release data.

Conclusions:

  • The developed in vitro release method provides a foundation for characterizing modified-release nanomedicines.
  • This work contributes to advancing the analytical methodologies for parenteral drug products.
  • Robust IVR methods are essential for the successful development of nanomedicine-based therapeutics.