Info
prognosis of chronic myelogenous leukemia (CML)
(NEJM 2017;376:917)
Chronic phase CML Rx’d w/ imatinib:
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89% 5-y overall survival,
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95% survival free of CML-related deaths,
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7% progression to blast phase at 5 y
- (NEJM 2006;355:2408).
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Pts in CCyR (~equal to QT-PCR if 1% IS)
- have normal life expectancy.
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QT-PCR >4-log
- ↓ can consider TKI discontinuation trial
- (Lancet Onc 2018;19:747).
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Stage of disease at dx is strongest predictor of outcome (chronic vs. accel/blast phase)
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OS nearing nl life expectancy (if diagnosed in chronic phase) in TKI era
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Various scoring systems devised to predict outcomes at dx:
- Sokal score
- Hasford score (categories: low vs. intermediate vs. high; same elements as Sokal, as well as peripheral blood basophils/eosinophils) (JNCI 1998;90:850)
- ELTS (EUTOS long term survival score):
- Categories: Low vs. intermediate vs. high; same elements as Sokal; different weighting, imatinib-based (Leukemia 2020;34(8):2138)