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Grade 4 Neutropenia Frequency as a Binary Risk Predictor for Adverse Clinical Consequences of Chemotherapy‑Induced
Ramon Mohanlal1, Stephan Ogenstad2, Gary H Lyman3
1BeyondSpring Pharmaceuticals, Inc., New York, NY, USA.
Grade 4 neutropenia (Gr4N) is a key indicator of chemotherapy-induced neutropenia (CIN) severity. A Gr4N incidence threshold of 65% effectively predicts low risk for febrile neutropenia and other adverse outcomes.
Area of Science:
- Oncology
- Hematology
- Clinical Pharmacology
Background:
- Neutropenia is a significant toxicity associated with myelosuppressive cancer chemotherapy.
- Chemotherapy-induced neutropenia (CIN) severity is often measured by Grade 4 neutropenia (Gr4N).
Conclusions:
- Gr4N is a highly predictive measure for adverse CIN outcomes.
- A Gr4N incidence of 65% effectively demarcates low versus high risk for FN and other adverse CIN events.
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