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- W2118851118 abstract "The obvious answer to this question is: Yes. There are two reasons that a medical therapy would not be considered as of benefit to patients. The first of these is that the risks of toxicity or negative effects of a therapy outweigh the benefits. The second is that that therapy does not work: that it does not decrease the risk of negative outcome (for breast cancer that the risk of recurrence and/or death). Over the last 10 years there have been improvements in how we can assess patients for the appropriateness of chemotherapy: 1) We can better predict patients9 prognoses without therapy, 2) in a modest way we can better assess their risk for toxicity and 3)we can better predict for individual patients the relative efficacy of a therapy. Over the last decade models to that integrate classical pathologic information to better predict the prognosis of patients have been refined. An advance beyond these models is the development of multi-gene assays either dependent on evaluation of mRNA or proteins that can stratify patients into prognostic groupings. These new methods can be integrated with classical pathologic information to evaluate prognosis. Work on predicting toxicity from chemotherapy has been more modest, but have important possible application. Models exist for some chemotherapeutic regimens for predicting the risk of clinically significant neutropenia or cardiac toxicity. In some instances the risk of particularly severe toxicity to specific agents such as 5FU can be tested for. Perhaps the greatest advance during this period is the better definition of predictors of response to chemotherapy. There has been a long recognition that the estrogen receptor status can stratify patients particularly likely to benefit from chemotherapy, but new predictors are able to identify patients within ER subgroups with particular chemosensitivity. The move toward more personalized therapy is taking place with improvements in prognostic assessment of patients, their risk of toxicity, and whether specific agents will (or will not) reduce the risk of recurrence or breast cancer related death. This review will show that there are certainly are patients who can be identified who do not benefit from chemotherapy, and will in its summary examine what current treatment guidelines say on this topic Citation Information: Cancer Res 2009;69(24 Suppl):Abstract nr CS1-1." @default.
- W2118851118 created "2016-06-24" @default.
- W2118851118 creator A5080875837 @default.
- W2118851118 date "2009-12-15" @default.
- W2118851118 modified "2023-09-27" @default.
- W2118851118 title "Are There Groups of Patients Who Don't Benefit from Chemotherapy?" @default.
- W2118851118 doi "https://doi.org/10.1158/0008-5472.sabcs-09-cs1-1" @default.
- W2118851118 hasPublicationYear "2009" @default.
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