APR 06, 2016 6:00 AM PDT

EFIRM Liquid Biopsy

Speakers
  • Associate Dean of Research and Director of the Oral/Head and Neck Oncology Research Center, UCLA
    Biography
      David T.W. Wong DMD, DMSc is Felix & Mildred Yip Endowed Professor, Associate Dean of Research and Director of the Oral/Head and Neck Oncology Research Center at UCLA. Dr. Wong is an active scientist in oral cancer and saliva diagnostics research. He has authored over 280 peer reviewed scientific publications. He is a fellow of the American Association for the Advancement of Sciences (AAAS), past member of the ADA Council of Scientific Affairs and the past president of American Association of Dental Research (AADR).

    Abstract:

    The advent of personalized medicine employing molecular targeted therapies has markedly changed the treatment of cancer in the past 10 years. Although tumor tissue biopsy-based genotyping is the current clinical practice for guiding clinical management, biopsy procedures can result in significant morbidity, limiting sampling to static snapshots which are further limited in scope by the inherent sampling bias of the analysis itself. To overcome these issues, technologies are needed for rapid, cost-effective, and noninvasive identification of biomarkers at various time points during the course of disease. Liquid biopsy is a rapidly emerging field to address this unmet clinical need as diagnostics based on cell-free circulating tumor DNA (ctDNA) can be a surrogate for the entire tumor genome. The use of ctDNA via liquid biopsy will facilitate analysis of tumor genomics that is urgently needed for molecular targeted therapy. Currently, most targeted approaches are based on PCR and/or next generation sequencing (NGS) for liquid biopsy applications with performance concordance in the 60-80% range with biopsy-based genotyping.

    We have developed a liquid biopsy technology “Electric Field Induced Release and Measurement (EFIRM)- Liquid Biopsy (eLB)” provides the most accurate detection that can assist clinical treatment decisions for the most common subtype of lung cancer, non-small cell lung cancer (NSCLC), with tyrosine kinase inhibitors (TKI) that can extend the disease progress free survival period of these patients. eLB can detection ctDNA at single copy level whereas ddPCR detects ctDNA a minimum of 10 copy number. In addition eLB requires only 40 µl of sample volume, no sample processing, reaction time is 15min and can be performed at the point-of-care or high throughput reference lab using plasma or saliva. eLB detects actionable EGFR mutations in NSCLC patients with >90% concordance with biopsy-based genotyping. eLB is minimally/ non-invasive detecting the most common EGFR gene mutations that are treatable with TKI such as Gefitinib or Erlotinib to effectively extend the progression free survival of lung cancer patients.
     
     


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