Novel drug delivery strategies in neuro-oncology

Dani S Bidros1, Michael A Vogelbaum

  • 1Department of Neurological Surgery, Brain Tumor and NeuroOncology Center, Neurological Institute, Cleveland Clinic, Cleveland, Ohio, USA.

Insights

Treating malignant gliomas is challenging due to the blood-brain barrier. This review explores methods like blood-brain barrier disruption and convection-enhanced delivery to improve drug delivery for brain tumors.

Area of Science:

  • Neuro-oncology
  • Drug Delivery Systems
  • Cancer Therapeutics

Background:

  • Malignant gliomas, including glioblastoma, have poor prognoses despite standard treatments.
  • The blood-brain barrier (BBB) significantly impedes the delivery of therapeutic agents to brain tumors.
  • Effective drug delivery to brain tumor cells remains a critical challenge in neuro-oncology.

Purpose of the Study:

  • To review clinically available methods for circumventing the blood-brain barrier (BBB).
  • To summarize the outcomes of clinical trials investigating novel drug delivery techniques for malignant brain tumors.
  • To provide an overview of strategies aimed at enhancing therapeutic efficacy for brain cancers.

Main Methods:

  • Description of established methods to bypass the blood-brain barrier.
  • Summary of results from completed and ongoing clinical trials.
  • Analysis of investigational delivery techniques such as BBB disruption and convection-enhanced delivery.

Main Results:

  • Clinical trials using BBB disruption and convection-enhanced delivery have yielded mixed results.
  • Ongoing trials are exploring further applications and refinements of these delivery methods.
  • The efficacy of these techniques in improving patient outcomes is under continued investigation.

Conclusions:

  • Circumventing the blood-brain barrier is crucial for effective malignant glioma treatment.
  • Blood-brain barrier disruption and convection-enhanced delivery show promise but require further validation.
  • Continued research and clinical trials are essential to optimize drug delivery strategies for brain tumors.

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