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Published on: November 5, 2012
[Checkpoint inhibitors neurological side effects]
G Suay1, L Bataller1
1Hospital Universitari i Politecnic La Fe, Valencia, Espana.
Introduction:
Checkpoint inhibitors have dramatically transformed cancer treatment. However, due to the increasing number of tumors in which they are used, there is a high number of reported adverse effects. Among them, we highlight neurological side effects. In the approbatory clinical trials, they were thought to be sparse, but they may have been underestimated.
Aim:
To review the physiopathology and the incidence of neurological side effects due to the use of checkpoint inhibitors, as well as the clinical practice guidelines published in the last years.
Development:
To review the published case reports of neurological side effects since the approval of checkpoint inhibitors, and our own experience. Moreover, we summarize the main clinical practice guidelines.
Conclusions:
Checkpoint inhibitors neurological side effects are frequent. A wide variety of central or peripheral nervous system symptoms may develop. In the setting of brain tumors, inflammation due to immune system activation might lead to pseudoprogression. Further studies are needed to better describe these neurological side effects, and to implement clinical guidelines.
Insights
Checkpoint inhibitors can cause frequent neurological side effects affecting the central and peripheral nervous systems. Further research is needed to better understand and manage these immune-related adverse events.
Area of Science:
- Oncology
- Neuroimmunology
- Pharmacovigilance
Background:
- Checkpoint inhibitors have revolutionized cancer therapy.
- Increased use leads to a rise in reported adverse effects, particularly neurological complications.
- Neurological side effects may have been underestimated in initial clinical trials.
Purpose of the Study:
- To review the pathophysiology and incidence of neurological side effects associated with checkpoint inhibitors.
- To summarize current clinical practice guidelines for managing these adverse events.
Main Methods:
- Systematic review of published case reports on neurological side effects of checkpoint inhibitors.
- Inclusion of institutional experience.
- Summary of key clinical practice guidelines.
Main Results:
- Neurological side effects from checkpoint inhibitors are common.
- A diverse range of central and peripheral nervous system symptoms can manifest.
- Immune-mediated inflammation, especially in brain tumors, can mimic tumor progression (pseudoprogression).
Conclusions:
- Checkpoint inhibitor-related neurological adverse events are frequent and varied.
- Clinical guidelines are essential for managing these side effects.
- Further research is required to fully characterize and address these neurological complications.
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