Implementation of low-dose CT screening for lung cancer in community settings is successfully detecting the disease at an early, more treatable stage, suggests a survey of U.S. lung cancer screening centers.
Such screening led to a 20% reduction in lung cancer mortality in the National Lung Screening Trial (N Engl J Med. 2011;365:395-409), prompting the Centers for Medicare & Medicaid Services to start covering it in 2015. However, fewer than a third of trial practices were community based, and questions lingered regarding applicability of this screening in nonacademic settings.
Investigators working under senior author Jennifer C. King, PhD, senior director of science and research at the GO2 Foundation for Lung Cancer, Washington, administered a 21-question survey to 165 lung cancer screening centers designated as Screening Centers of Excellence asking about their 2016 program data and practices. Overall, 62% of the centers were community based, having no university or other academic affiliation.
Results reported in the Journal of Oncology Practice showed that more than half of 529 lung cancer diagnoses the centers made in 2016 were made at stage I or limited stage, with the same pattern seen for community and academic centers. Findings were similar when analyses instead considered Lung Imaging Reporting and Data System results for 40,000 low-dose CT scans performed that year.
Community and academic centers differed in how they addressed the CMS requirement for a prescreening shared decision making visit led by a health practitioner, with the former more commonly relying on only primary care providers (52% vs. 40%). The centers were similar in how they addressed the CMS requirement for smoking cessation services, with both using referral to a quitline, cessation counseling within the screening facility, and printed educational materials; however, academic centers more commonly followed up with current smokers (52% vs. 36%).
The main barriers to implementing screening were insurance and billing issues, lack of provider referral, lack of patient awareness, and internal work flow challenges, cited by more than half of centers overall. Community centers less often cited staffing and time limitations (35% vs. 53%) and insurance and billing issues (64% vs. 74%), but percentages were similar for other barriers.
“There has been concern about the ability of nonacademic centers to implement lung cancer screening as safely and effectively as academic medical centers,” Dr. King and coauthors wrote. “In this study, we not only demonstrate that lung cancer screening is happening in the community setting, but also that nonacademic screening programs are using similar protocols and are seeing similar findings as academic medical centers.
“These data indicate that responsible implementation is possible in the community and results in a meaningful stage shift for lung cancer diagnoses, and providers should support ongoing implementation of lung cancer screening efforts,” they concluded.
Dr. King reported that she receives honoraria from MedImmune, AstraZeneca, and Genentech; has a consulting or advisory role with GRAIL, Tesaro, AbbVie, and Foundation Medicine; and receives research funding from AstraZeneca. The study was supported by the GO2 Foundation for Lung Cancer.
SOURCE: King JC et al. J Oncol Pract. 2019 May 31. doi: 10.1200/JOP.18.00788.