The overall goal of the Research Center is the creation of a research unit that can evaluate the complete colorectal cancer (CRC) screening process. The specific goal is the characterization of remediable failures of the two most commonly used screening tests (optical colonoscopy and fecal immunochemical tests [FIT]). Two important problems in CRC are over-screening and under-diagnosis: 1) >95% of people will not die of CRC, thus, for most patients, screening results only in worry &risk;yet 2) many CRC deaths occur despite CRC screening (i.e. in persons with prior screening). It is unclear how many deaths result from remediable failures of the screening process. Our center will evaluate a community-based cohort that includes detailed CRC screening and medical data for >2 million screening-eligible people/year;>10 years of data;large numbers of outcomes (38,000 cancers);geographic diversity (>35 medical centers across California);demographic diversity (140,000 African Americans, 320,000 Hispanics, and 200,000 Asian-Americans among current members);socioeconomic diversity;diversity of screening methods;access to tissue/cancer blocks;and a full spectrum of individual cancer risk. Project 1 will evaluate FIT, an effective and efficient noninvasive screening method. Project 2 will evaluate colonoscopy, a sensitive, widely used test that is the final common exam for all CRC screening strategies. Projects 1 &2 will both evaluate patterns of use, especially: screening failures (cancers diagnosed despite screening);surveillance failures, and surveillance over-use. We will investigate physician and patient components for these failures using a recently developed systematic process that includes establishing bases for interventions that target barriers in healthcare settings. Project 1 will also evaluate clinically available genetic markers to evaluate for potential biological differences between FIT detected vs. screen failure cancers. Project 3 will model the effectiveness of colonoscopy vs. FIT utilizing community-based data from the full screening process acquired in Projects 1 &2, in collaboration with a proven NCI consortium Cancer Intervention and Surveillance Modeling Network (CISNET) site, including different screening strategies for different patient populations, tailored to risk. The Center includes a trans-disciplinary group of researchers including gastroenterologists, oncologists, family physicians, population scientists, modeling experts, quality experts, behavioral experts, and experts in health care delivery. The Center can efficiently evaluate the full screening process and can provide substantial human, institutional, and patient resources for collaborative projects within the PROSPR network.
Screening can reduce colorectal cancer incidence and mortality in clinical trials. However, the real practice of screening in a community based population differs from what can be achieved in trials. Optimizing screening strategies by characterizing potential failures of the screening process and developing screening strategies tailored to personal risk offer substantial potential for decreasing colorectal cancer deaths.
|Klabunde, Carrie N; Zheng, Yingye; Quinn, Virginia P et al. (2016) Influence of Age and Comorbidity on Colorectal Cancer Screening in the Elderly. Am J Prev Med 51:e67-75|
|Chubak, Jessica; Garcia, Michael P; Burnett-Hartman, Andrea N et al. (2016) Time to Colonoscopy after Positive Fecal Blood Test in Four U.S. Health Care Systems. Cancer Epidemiol Biomarkers Prev 25:344-50|
|Burnett-Hartman, Andrea N; Mehta, Shivan J; Zheng, Yingye et al. (2016) Racial/Ethnic Disparities in Colorectal Cancer Screening Across Healthcare Systems. Am J Prev Med 51:e107-15|
|McCarthy, Anne Marie; Kim, Jane J; Beaber, Elisabeth F et al. (2016) Follow-Up of Abnormal Breast and Colorectal Cancer Screening by Race/Ethnicity. Am J Prev Med 51:507-12|
|Jensen, Christopher D; Corley, Douglas A; Quinn, Virginia P et al. (2016) Fecal Immunochemical Test Program Performance Over 4 Rounds of Annual Screening: A Retrospective Cohort Study. Ann Intern Med 164:456-63|
|Lee, Jeffrey K; Corley, Douglas A (2016) What makes a "good" colonoscopy quality indicator? Gastrointest Endosc 83:179-81|
|Lee, Alexander; Jensen, Christopher D; Marks, Amy R et al. (2016) Endoscopist Fatigue Estimates and Colonoscopic Adenoma Detection in a Large Community-Based Setting. Gastrointest Endosc :|
|Kim, Jane J; Tosteson, Anna Na; Zauber, Ann G et al. (2016) Cancer Models and Real-world Data: Better Together. J Natl Cancer Inst 108:|
|Tosteson, Anna N A; Beaber, Elisabeth F; Tiro, Jasmin et al. (2016) Variation in Screening Abnormality Rates and Follow-Up of Breast, Cervical and Colorectal Cancer Screening within the PROSPR Consortium. J Gen Intern Med 31:372-9|
|Meester, Reinier G S; Zauber, Ann G; Doubeni, Chyke A et al. (2016) Consequences of Increasing Time to Colonoscopy ExaminationÂ After Positive Result From Fecal Colorectal CancerÂ Screening Test. Clin Gastroenterol Hepatol 14:1445-1451.e8|
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