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Revision as of 01:51, 27 November 2017
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Future or Investigational Therapies
- Three immunotoxin drugs are in Phase II trials at the NIH's National Cancer Institute in the U.S.: BL22[1], HA22[2] and LMB-2.[3]
- All of these protein-based drugs combine part of an anti-B cell antibody with a bacterial toxin to kill the cells on internalization. BL22 and HA22 attack a common protein called CD22, which is present on hairy cells and healthy B cells. LMB-2 attacks a protein called CD25, which is not present in HCL-variant, so LMB-2 is only useful for patients with HCL-classic or the Japanese variant.
- All three of these therapies are available only at the National Cancer Institute in Bethesda, Maryland, USA. While initial results are generally favorable, it is likely to be a number of years before these drugs are available on the market.