9G TestTM Cancer/Lung: A Desirable Companion to LDCT for Lung Cancer Screening

• Published in: Cancers 2020-10, Vol.12 (11), p.3192
• Main Authors: Choe, Wonho, Chae, Jeong Don, Lee, Byoung-Hoon, Kim, Sang-Hoon, Park, So Young, Nimse, Satish Balasaheb, Kim, Junghoon, Warkad, Shrikant Dashrath, Song, Keum-Soo, Oh, Ae-Chin, Hong, Young Jun, Kim, Taisun
• Format: Article
• Language: English
• ISSN: 2072-6694; 2072-6694
• DOI: 10.3390/cancers12113192

A complimentary biomarker test that can be used in combination with LDCT for lung cancer screening is highly desirable to improve the diagnostic capacity of LDCT and reduce the false-positive rates. Most importantly, the stage I lung cancer detection rate can be dramatically increased by the simultaneous use of a biomarker test with LDCT. The present study was conducted to evaluate 9G testTM Cancer/Lung’s sensitivity and specificity in detecting Stage 0~IV lung cancer. The obtained results indicate that the 9G testTM Cancer/Lung can detect lung cancer with overall sensitivity and specificity of 75.0% (69.1~80.3) and 97.3% (95.0~98.8), respectively. The detection of stage I, stage II, stage III, and stage IV cancers with sensitivities of 77.5%, 78.1%, 67.4%, and 33.3%, respectively, at the specificity of 97.3% have never been reported before. The receiver operating characteristic curve analysis allowed us to determine the population-weighted AUC of 0.93 (95% CI, 0.91–0.95). These results indicate that the 9G testTM Cancer/Lung can be used in conjunction with LDCT to screen lung cancer. Furthermore, obtained results indicate that the use of 9G testTM Cancer/Lung with LDCT for lung cancer screening can increase stage I cancer detection, which is crucial to improve the currently low 5-year survival rates.