MSK ACCESS- Analysis of Circulating cfDNA to Evaluate Somatic Status
The MSK-ACCESS assay is a comprehensive liquid biopsy test that offers noninvasive cancer genomic profiling and disease monitoring. It involves the deep sequencing of 129 key cancer-associated genes selected from MSK’s solid tumor genomic-profiling assay, MSK-IMPACT™. MSK-ACCESS is designed to detect genetic alterations in cfDNA (cell-free DNA) specimens, such as blood and other body fluids
What Is cfDNA? CfDNA is released from cells throughout the body, including cancer cells, and is found in blood plasma as well as other body fluids, such as saliva and urine. In people with cancer, cfDNA may contain circulating DNA shed from dying cancer cells, which can be detected by highly sensitive sequencing methods. Using MSK-ACCESS, molecular diagnosticians can analyze cfDNA through a simple blood draw, providing a unique and noninvasive way to profile the genomic characteristics of the underlying tumor and guide treatment decisions.
The Difference between MSK-IMPACT and MSK-ACCESS: The letters in MSK-IMPACT represent its full name of Integrated Mutation Profiling of Actionable Cancer Targets. MSK-IMPACT is a targeted tumor-sequencing test available to MSK patients. It can detect mutations and other critical changes in the genes of both rare and common cancers. MSK-ACCESS allows for deeper sequencing coverage and higher sensitivity to detect mutations.