ADH-1
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ADH-1 (brand name Exherin) is a small, cyclic pentapeptide vascular-targeting drug. It was developed by Adherex Technologies.
ADH-1 selectively and competitively binds to and blocks N-cadherin, which may result in disruption of tumor vasculature, inhibition of tumor cell growth, and the induction of tumor cell and endothelial cell apoptosis.[1] N-cadherin, a cell- surface transmembrane glycoprotein of the cadherin superfamily of proteins involved in calcium-mediated cell–cell adhesion and signaling mechanisms;[1] may be upregulated in some aggressive tumors and the endothelial cells and pericytes of some tumor blood vessels.[1]
In 2006, Adherex and NCI formed a clinical trial agreement stating that NCI will sponsor clinical trials of ADH-1 in a variety of cancer types. ADH-1 received orphan drug status from the FDA in 2008.[2]
In a pilot study (phase I trial), ADH-1 intravenous pretreatment before chemotherapy in metastatic melanoma completely destroyed tumors in half of patients. It is being investigated in phase II trials for advanced extremity melanoma.[3][4]
References
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