Metastatic breast cancer patients with elevated circulating tumor cells do not benefi
 

For women with metastatic breast cancer who had elevated amounts of circulating tumor cells (CTCs) in their blood after a first line of chemotherapy, switching immediately to a different chemotherapy did not improve overall survival or time to progression, according to the results of a phase III clinical trial presented at the 2013 San Antonio Breast Cancer Symposium.

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Re: Metastatic breast cancer patients with elevated circulating tumor cells do not be
 

Another study that could benefit from the use of functional profiling before and during the study.

By utilizing this I suspect the time of disease free progression, overall survival, and identification of which women would benefit from a change could have improved.