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<p><b>New page</b></p><div>'''Predictive Marker'''<br />
<br />
A '''predictive marker''' is a [[biomarker]] that is used to identify the likelihood of a patient's response to a particular [[treatment]]. These markers are often used in [[oncology]] to predict the effectiveness of certain [[chemotherapy]] drugs or [[radiation therapy]].<br />
<br />
== Overview ==<br />
<br />
Predictive markers are used to help determine the most effective treatment for a patient. They are often used in conjunction with other [[diagnostic tests]] and [[medical history]] to make a comprehensive treatment plan. Predictive markers can be found in the [[blood]], [[tissue]], or other bodily fluids and can be identified through various [[laboratory tests]].<br />
<br />
== Types of Predictive Markers ==<br />
<br />
There are several types of predictive markers used in medicine today. Some of the most common include:<br />
<br />
* '''[[Genetic markers]]''': These are changes in [[DNA]] that can predict a person's risk of developing certain diseases or their response to treatment.<br />
* '''[[Protein markers]]''': These are changes in the levels of certain proteins in the body that can indicate a disease or condition.<br />
* '''[[Metabolic markers]]''': These are changes in the body's metabolic processes that can indicate a disease or condition.<br />
<br />
== Use in Oncology ==<br />
<br />
In oncology, predictive markers are often used to determine the most effective treatment for a patient. For example, the presence of the [[HER2]] gene in breast cancer patients can predict a positive response to [[Herceptin]], a targeted therapy drug. Similarly, the presence of the [[KRAS]] gene in colorectal cancer patients can predict a negative response to [[EGFR]] inhibitor drugs.<br />
<br />
== Future Directions ==<br />
<br />
The field of predictive markers is constantly evolving, with new markers being discovered and validated regularly. The use of predictive markers in [[personalized medicine]] is a promising area of research, with the potential to greatly improve patient outcomes.<br />
<br />
== See Also ==<br />
<br />
* [[Biomarker]]<br />
* [[Diagnostic test]]<br />
* [[Oncology]]<br />
* [[Chemotherapy]]<br />
* [[Radiation therapy]]<br />
* [[Genetic marker]]<br />
* [[Protein marker]]<br />
* [[Metabolic marker]]<br />
* [[HER2]]<br />
* [[KRAS]]<br />
* [[EGFR]]<br />
* [[Herceptin]]<br />
* [[Personalized medicine]]<br />
<br />
[[Category:Medical terms]]<br />
[[Category:Oncology]]<br />
[[Category:Diagnostic tests]]<br />
[[Category:Genetics]]<br />
[[Category:Proteins]]<br />
[[Category:Metabolism]]<br />
<br />
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