The blood-brain barrier restricts the delivery of several
Research gap analysis derived from 3 medicine papers in our local library.
The gap
The blood-brain barrier restricts the delivery of several drugs, rendering them ineffective against the growth of tumors. - The lack of comparison groups and the insufficient number of participants in some trials limit the conclusions that
Evidence profile
Stated in the abstract and cells future research and cells limitations sections of the source papers, classified as general, spanning 3 journals.
Research trend
Established — well-defined area with open sub-problems.
Supporting evidence — 3 representative gaps
- Storming glioblastoma’s fortress: kaempferol-powered spatiotemporal nanotherapy hierarchically breaking-capturing-disarming tumor defenses via programmable metabolic phototherapy amplification (2026) · Advanced Composites and Hybrid Materials · doi
Abstract The efficacy of conventional therapies against glioblastoma (GBM) is limited by a hierarchical defense system comprising the blood-brain barrier (BBB) that restricts the entry of most therapeutic drugs, physical-chemical barriers of tumor that hinder drug penetration and retention, and intrinsic or adaptive metabolic reprogramming that empowers treatment resistance, collectively rendering over 98% of therapeutic agents ineffective.
generalstated in abstractevidence 5/5Keywords: therapeutic abstract efficacy conventional therapies against glioblastoma limited hierarchical defense system comprising blood brain barrier - Research progress of small molecule targeted drugs for non-small cell lung cancer (2026) · Frontiers in Oncology · doi
Future research should prioritize accelerating the clinical translation of investigational drugs, exploring combination treatment regimens, identifying novel molecular targets, and optimizing the overall system of molecular targeted therapy. - Research should focus on developing novel therapies that can overcome acquired drug resistance and penetrate the blood-brain barrier.
generalstated in cells future researchevidence 5/5Keywords: future research prioritize accelerating clinical translation investigational drugs - Immune Checkpoint Inhibitors in Glioblastoma Treatment (2026) · Theoretical and Natural Science · doi
The blood-brain barrier restricts the delivery of several drugs, rendering them ineffective against the growth of tumors. - The lack of comparison groups and the insufficient number of participants in some trials limit the conclusions that can be drawn. - The natural characteristic of the central nervous system known as 'immune isolation' creates an impediment to treatment.
generalstated in cells limitationsevidence 5/5Keywords: blood-brain barrier restricts delivery several drugs rendering them
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