"...an [[Antibody]], a special immune [[Protein]], that targets products of the HER-2/neu OncoGene. It is often used as a treatment for women with metastatic BreastCancer that overexpresses the HER-2/neu OncoGene." http://www.breastcancer.org/ren_report_2001_5.html#chemo "The drug only appears to work for women whose BreastCancer [[Cell]]s carry extra copies of a protein called HER2 (also written HER2/neu)." http://imaginis.com/breasthealth/herceptin.asp After developing Herceptin, [[Genetech]] (?) could not get it approved by the USA FoodAndDrugAdministration. It was below the threshold; 1/3rd of all patients responded to it {?}. So they sorted their patient group into two "strata", one responders and the other non-responders. Then they determined a genetic difference between the two groups and (possibly) declared this was the causative discrimination between the groups. This can be viewed as either [[AZT]]-style market manipulation, or one of the wonders of IndividualizedMedicine, depending on your point of view. ---- Herceptin is the subject of a number of smarmy patient-oriented e-commerce sites... http://www.herceptin.com/ http://www.herceptin.nl/ (under construction at this time) ---- CategoryProtein