Chemotherapy resistance occurs when cancers that have been responding to a therapy suddenly begin to grow. In other words, the cancer cells are resisting the effects of the chemotherapy. You may hear statements like the "cancer chemotherapy failed." When this occurs, the drugs will need to be changed.
There are several possible reasons for chemotherapy resistance:
Research is underway to investigate ways of reducing or preventing chemotherapy resistance.
The development of drug resistance is one reason that drugs are often given in combination. It is thought that this may reduce the incidence of developing resistance to any one drug. Often, if a cancer becomes resistant to one drug or group of drugs, it is more likely that the cancer may be resistant to other drugs. This is why it is very important to select the best possible treatment protocol FIRST. In other words, when treating cancer, one should use the best weapon when there is the smallest possibility of chemotherapy resistance.
More Chemotherapy Information:
Chemotherapy Terms Chemotherapy Protocols - How Chemotherapy Works How Chemotherapy Is Given How Doctors Decide Which Chemotherapy Drugs To Give How Long Chemotherapy Is Given How To Tell If Chemotherapy Is Working Cancer Cells & Chemotherapy Types of Chemotherapy Targeted Therapy The Immune System About Immunotherapy Hormone Therapy Chemoporotective Agents Chemotherapy Resistance Short & Long Term Side Effects of Chemotherapy Nadir Cancer Clinical Trials