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Scottsdale Healthcare-TGen clinical trial results signal advances against skin cancer
September 03, 2009Analyses of clinical trial results published today in the New England Journal of Medicine (NEJM) shows a potential new investigational therapy for advanced and metastatic basal cell skin cancer.
The study, conducted at TGen Clinical Research Service (TCRS) at Scottsdale Healthcare and two other sites appears to demonstrate tumor shrinkage and limited side effects. TCRS is a strategic alliance between the Translational Genomics Research Institute (TGen) and Scottsdale Healthcare.
These findings are significant because no proven therapy exists for advanced basal cell carcinoma (BCC). BCC is the most common cancer in the United States with about one million new cases diagnosed each year. Arizona has one of the highest incidences of skin cancer in the world.
The article appears on-line today and in the Sept. 17 print issue of NEJM.
"Until now, no treatment existed that effectively slowed tumor growth in those patients with advanced skin cancer," said lead investigator Daniel D. Von Hoff, MD, Physician in Chief at TGen, Chief Medical Officer for the Scottsdale Clinical Research Institute at Scottsdale Healthcare and chief scientific officer at US Oncology. "By strategically initiating what we call "precision oncology", or using the right drug for each cancer, this study offers great potential against basal cell carcinoma and other cancers."
The trial, sponsored by Genentech, included clinicians at TCRS, the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University in Baltimore, and Karmanos Cancer Institute in Detroit. The results demonstrated that GDC-0449, a Hedgehog Pathway Inhibitor, appears to shrink tumors in locally advanced and metastatic BCC. Known as the "Hedgehog" trial, the clinicians observed a durable clinical benefit -defined as tumor shrinkage visible on X-ray or other physical exam or improvement in symptoms without tumor growth- in 18 of 33 patients evaluated. Others had stable disease for prolonged periods of time. Only 4 patients had progression of disease.
Abnormal activation of the Hedgehog signaling pathway appears to be an important mechanism for numerous types of cancer to develop, survive, or grow. A chemical called cyclopamine found in the California corn lily can inactivate this Hedgehog pathway.
Study investigators selected BCC as the first cancer to study in that most BCCs have abnormalities or mutations of Hedgehog pathway genes named PATCHED and SMOOTHENED.
"Success of this new therapy is another example of applying genetic information to medicine. We are constantly working to improve treatment options for patients with common and rare cancers," said TCRS physician Glen J. Weiss, M.D., a contributing author on the study.
Patient response to the therapy was assessed through physical examination and imaging.
"Integrating genomic data with state-of-the-art clinical and imaging information to develop and apply targeted therapies has certainly taken a major step forward with the encouraging results from the Hedgehog trial," added Dr. Ron Korn, a Scottsdale Healthcare radiologist and director of Scottsdale Medical Imaging Ltd.
The Translational Genomics Research Institute
The article appears on-line today and in the Sept. 17 print issue of NEJM.
"Until now, no treatment existed that effectively slowed tumor growth in those patients with advanced skin cancer," said lead investigator Daniel D. Von Hoff, MD, Physician in Chief at TGen, Chief Medical Officer for the Scottsdale Clinical Research Institute at Scottsdale Healthcare and chief scientific officer at US Oncology. "By strategically initiating what we call "precision oncology", or using the right drug for each cancer, this study offers great potential against basal cell carcinoma and other cancers."
The trial, sponsored by Genentech, included clinicians at TCRS, the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University in Baltimore, and Karmanos Cancer Institute in Detroit. The results demonstrated that GDC-0449, a Hedgehog Pathway Inhibitor, appears to shrink tumors in locally advanced and metastatic BCC. Known as the "Hedgehog" trial, the clinicians observed a durable clinical benefit -defined as tumor shrinkage visible on X-ray or other physical exam or improvement in symptoms without tumor growth- in 18 of 33 patients evaluated. Others had stable disease for prolonged periods of time. Only 4 patients had progression of disease.
Abnormal activation of the Hedgehog signaling pathway appears to be an important mechanism for numerous types of cancer to develop, survive, or grow. A chemical called cyclopamine found in the California corn lily can inactivate this Hedgehog pathway.
Study investigators selected BCC as the first cancer to study in that most BCCs have abnormalities or mutations of Hedgehog pathway genes named PATCHED and SMOOTHENED.
"Success of this new therapy is another example of applying genetic information to medicine. We are constantly working to improve treatment options for patients with common and rare cancers," said TCRS physician Glen J. Weiss, M.D., a contributing author on the study.
Patient response to the therapy was assessed through physical examination and imaging.
"Integrating genomic data with state-of-the-art clinical and imaging information to develop and apply targeted therapies has certainly taken a major step forward with the encouraging results from the Hedgehog trial," added Dr. Ron Korn, a Scottsdale Healthcare radiologist and director of Scottsdale Medical Imaging Ltd.
The Translational Genomics Research Institute
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