it is made from the patients own leukocytes (white blood cells), I do not mean to sound cold but I question if the cost and side effects are really worth an additional 4 months of life, if it was a cure that would be different
Sipuleucel-T (APC8015, Provenge),<1><2> manufactured by Dendreon Corporation, is a patient specific therapeutic cancer vaccine for prostate cancer (CaP). A therapeutic vaccine is designed to treat the active disease. A preventive vaccine is to cure the condition (usually a virus) causing the cancer. As of 2011 there are two approved prophylactic cancer prevention vaccines. These are for the cancer causing viruses HPV and HBV.
A course of Sipuleucel-T treatment consists of three basic steps:
1. A patient's own white blood cells, primarily antigen-presenting cells (APCs), also called Dendritic cells, are extracted in a leukapheresis procedure.
2. The blood product is sent to the factory and incubated with a fusion protein (PA2024) consisting of two parts,
1. the antigen prostatic acid phosphatase (PAP), which is present in 95% of prostate cancer cells, and
2. an immune signaling factor granulocyte-macrophage colony stimulating factor (GM-CSF) that helps the APCs to mature.
3. The activated blood product (APC8015) is returned from the factory to the infusion center and re-infused into the patient to cause an immune response against cancer cells carrying the PAP antigen.<3><4>
A complete Sipuleucel-T treatment repeats three courses over the span of a month, with two weeks between successive courses.
This page was last modified on 7 March 2011 at 06:45.
http://en.wikipedia.org/wiki/Sipuleucel-T