An Open Protocol For The Compassionate Use of Thalidomide For Patients With Advanced Or Refractory Malignancies
Angiogenesis is a normal, physiological process in the growing embryo, wound healing and
ovulation. Progressive recruitments of blood vessels to the tumor site are thought to result
in a self perpetuating loop helping to drive the growth of tumors. This new vasculature
also allows competent tumor cells to find access to the vascular system and facilitate
distant spread of tumor cells. Neovascularization is apparently an absolute prerequisite
for physical expansion of solid tumors to grow beyond the volume of about 1-2 mm in
diameter. Several molecular and cellular mechanisms have been identified by which tumor
parenchyma may exert its angiogenic effect on host endothelial cells. There is also
evidence that endothelial cells themselves, like other stromal cells, may act reciprocally
to alter the behavior of adjacent tumor cells in a paracrine or cell contact mediated
fashion. There is now known to be a diverse family of angiogenic growth factors, foremost
among them being basic FGF and VEGF. Several angiogenic peptide genes have been sequenced
and cloned. The degree of vascularization has acquired importance as an independent
prognostic indicator in various types of solid tumors. More recently, it has been noted
that increased angiogenesis may also be an important feature in hematologic malignancies,
e.g. leukemia.
Interventional
Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
The primary objective of this study is to use thalidomide to treat patients with advanced and/or refractory malignancies as part of a defined treatment protocol.
Athanasios Fassas, MD
Principal Investigator
UAMS
United States: Food and Drug Administration
UARK 98-023
NCT00081757
September 1998
May 2005
Name | Location |
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University of Arkansas for Medical Sciences/MIRT | Little Rock, Arkansas 72205 |