Smarter solutions for better colon cancer screening

Clinical Trial Data

The American BioOptics team has performed both animal and human clinical trials with a primary focus on colon cancer. Published trials to date include a pilot study involving 63 average risk patients undergoing screening colonoscopy at Evanston Northwestern Healthcare, as well as animal trials on rats and mice.

Sensitivity 100%
Specificity 64%

Optical detection of advanced polyp (adenoma >1 cm) vs. colonoscopy (n=63) from single rectal measurement

These early results are remarkable, when compared to clinically available FOBT and fecal DNA analyses, which have sensitivities of 10.8% and 18.2%, respectively. Ongoing trials are actively improving upon these initial results.

Both the animal and human clinical trials show the ability of optical technology to predict cancer risk well before the earliest observable changes in the cells’ histology. In addition, results of the human trials showed, for the first time, the ability of ABO’s optical technology to predict risk of advanced polyps throughout the colon in both experimental colorectal cancer models and humans.

(Source: Risk-Stratification of Colon Carcinogenesis through Enhanced Backscattering (EBS) Spectroscopy Analysis of the Uninvolved Colonic Mucosa by H. K. Roy, Y. L. Kim, Y. Liu, R. K. Wali, M. J. Goldberg, V. Turhitsky, J. Horwitz, V. Backman. Clinical Cancer Research, 19(3), 961-968 (2006).)

Selected Clinical Papers

“Inducible Nitric Oxide Synthase (iNOS) Mediates the Early Increase of Blood Supply (EIBS) in a Pre-dysplastic Stage of Colon Carcinogenesis”
by H. K. Roy, R. K. Wali, Y. Kim, Y. Liu, J. Hart, D. P. Kunte, J. L. Koetsier, M. J. Goldberg, V. Backman.
FEBS, 581 (20), 3857-3862 (2007).
OpticalMarkers in DuodenalMucosa Predict the Presence of Pancreatic Cancer, Clinical Cancer Research, 13(15), 4392-4399 (2007) (feature article).
by Y. Liu, R. E. Brand, V. Turzhitsky, Y. L. Kim, H. K. Roy, N. Hasabou, C. Sturgis, D. Shah, C. Hall, V. Backman.
National Science Foundation Press Release
Risk-Stratification of Colon Carcinogenesis through Enhanced Backscattering (EBS) Spectroscopy Analysis of the Uninvolved Colonic Mucosa
by H. K. Roy, Y. L. Kim, Y. Liu, R. K. Wali, M. J. Goldberg, V. Turhitsky, J. Horwitz, V. Backman.
Clinical Cancer Research, 19(3), 961-968 (2006).
Spectral Markers in Preneoplastic Intestinal Mucosa: An Accurate Predictor of Tumor Risk in the MIN Mouse
by H. K. Roy, Y. Kim, R. K. Wali, Y. Liu, J. Koetsier, A. Kromine, D. P. Kunte, M. J. Goldberg, V. Backman.
Cancer Epidemiology, Biomarkers & Prevention, 14(7), 1639-1645 (2005).
Increased Microvascular Blood Content is an Early Event in Colon Carcinogenesis
by R. K. Wali, H. K. Roy, Y. L. Kim, Y. Liu, J. L. Koetsier, D. P. Kunte, M. J. Goldberg, V. Turzhitsky, V. Backman.
Gut, 54, 654-660 (2005).
Four-Dimensional Elastic Light-Scattering Fingerprints as Preneoplastic Markers in the Rat Model of Colon Carcinogenesis
by H. K. Roy, Y. Liu, R. Wali, Y. L. Kim, A. K. Kromine, M. J. Goldberg, and V. Backman.
Gastroenterology, 126,1071-1081 (2004).