As many as needed: There is no single answer, dose and duration depends type of chemo therapeutic agent and type of tumor.
Answered 10/3/2016
5.7k views
Depends: There are several different types of brain cancer. Advanced brain cancer such as glioblastome multiforme may require indefinite therapy with drugs like temodar, (temozolomide) or avastin. Other medications are not as effective. Several of my patients are on Avastin indefinitely, and some for years.
Answered 1/11/2015
5.7k views
Difficult to say: There are treatments for primary brain cancers that are given during radiation and for 6 months after. If the tumor is not controlled it could be longer. If the cancer spread to the brain, the duration would depend on the other sites of cancer spread and the response to treatment.
Answered 8/4/2012
5.7k views
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