Photopheresis
What is Photopheresis?
Photopheresis, also known as extracorporeal photoimmunotherapy
(ECP), is a form of apheresis therapy. First introduced for the treatment
of cutaneous T-cell lymphoma (CTCL), it has since been evaluated in studies
and randomized trials as a potential treatment for autoimmune diseases,
solid organ transplant rejection, and Graft-versus-Host Disease after stem
cell transplant..
How is Photopheresis Done?
The procedure consists of placing an IV line into the patient's arm.
Peripheral blood is drawn into the instrument where the white cells or
buffy coat and a small amount of plasma are isolated and mixed with UVADEX,
a drug that can be activated by light. The buffy coat is exposed to
ultraviolet light (UVA) to activate the drug and then returned to the
patient. The entire procedure takes about four hours. Side effects are minimal
and may include nausea and sunlight sensitivity.
Why Photopheresis?
The precise mode of action of ECP is incompletely defined at present,
but it is believed that multiple mechanisms are most likely producing the
therapeutic effect. One mechanism involves the cross-linking of the DNA in
the T-cells disrupting their metabolic/proliferative functions. It is also
believed that the photo-damaged cells may induce suppressor T-cells to
recognize and eliminate the malignant or autosensitive T-cell clones in an
anti-tumor immune response.
IBMT is the lone photopheresis center in Indiana.
Patients with CTCL, organ rejection or Graft vs. Host Disease
can now be treated close to home in a personalized, convenient
setting. A call to 1.800.361.0016 is all that is required to refer
for a consultation. Questions? If so, please
contact us!
For further information on Photopheresis please see the Therakos
website (www.therakos.com)
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