Occurrence and Characteristics of Hospitalizations During First-Line Chemotherapy Among Individuals with Metastatic Colorectal Cancer
Received 12 July 2019
Accepted for publication 29 January 2020
Published 3 March 2020 Volume 2020:12 Pages 1535—1541
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 2
Editor who approved publication: Dr Antonella D'Anneo
Michael J Fisch,1 Michael Grabner,2 Daniel S Mytelka,3 Amit D Raval,2 Lee Bowman,3 David M Kern,2 Collin Churchill,3 Joseph Singer,2 Stewart Wetmore,3 John Barron,2 Michael Eleff4
1AIM Specialty Health, Chicago, IL, USA; 2HealthCore, Inc., Wilmington, DE, USA; 3Eli Lilly and Company, Indianapolis, IN, USA; 4Anthem, Inc., Indianapolis, IN, USA
Correspondence: Michael Grabner
HealthCore, Inc., 123 Justison St, Suite 200, Wilmington, DE 19801, USA
Tel +1 302-230-2000
Fax +1 302-230-2020
Objective: Choosing chemotherapy for metastatic colorectal cancer (mCRC) requires balancing clinical effectiveness and risk of complications. This study characterized real-world inpatient/emergency department (ED) hospitalizations during first-line chemotherapy among individuals with mCRC.
Methods: This retrospective cohort study used data from medical and pharmacy claims. All patients had mCRC with ≥ 1 claim for ≥ 1 of the 5 most frequently utilized first-line chemotherapy agents (fluorouracil, oxaliplatin, bevacizumab, irinotecan, capecitabine). The main outcome was all-cause hospitalizations (inpatient or ED setting) identified from claims via ICD-9/10-CM coding from index date until 30 days after the end of first-line chemotherapy or last available data.
Results: A total of 717 individuals (mean age 55 years; 58% male; ECOG 0/1/2+/missing in 44%/39%/6%/11%; median follow-up 116 days) met study criteria. Thirty-four distinct chemotherapy regimens were used. Overall, 40% of patients had ≥ 1 hospitalization (n=285; total 415 hospitalizations); 12% (n=85) had ≥ 2 hospitalizations. The median time to first hospitalization was 52 days; median inpatient length of stay was 4 days; infections/neutropenia (21%) and bowel-related complications (17%) were the most common issues associated with inpatient hospitalizations. In univariate analyses, insurance plan type, geographical location, ECOG, and renal disease were associated with hospitalization. In multivariable analyses, ECOG ≥ 1 was associated with a 67% increase (p< 0.01) in the odds of hospitalization vs ECOG= 0.
Conclusion: Approximately 40% of patients with mCRC were hospitalized during the study period. Hospital stays were typically short. Further research is needed to determine how many of these hospitalizations may be avoidable. We also observed a large amount of variation in regimens used in the first-line setting.
Keywords: colorectal cancer, chemotherapy-associated hospitalization, outcomes research, observational study, claims analysis
This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.Download Article [PDF] View Full Text [HTML][Machine readable]