Time to treatment initiation and its impact on real‐world survival in metastatic colorectal cancer and pancreatic cancer

Abstract Background Given the dearth of data regarding the time to treatment initiation (TTI) in the palliative setting, and its impact on survival outcomes, we sought to determine TTI in a real‐world cohort of metastatic colorectal cancer (mCRC) and metastatic pancreatic cancer (mPC) patients and e...

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Main Authors: Olumide Gbolahan, Neda Hashemi‐Sadraei, Suri Yash, Grant Williams, Rekha Ramachandran, Young‐il Kim, Ravikumar Paluri, Darryl Outlaw, Bassel El‐Rayes, Lisle Nabell
Format: Article
Language:English
Published: Wiley 2023-02-01
Series:Cancer Medicine
Subjects:
Online Access:https://doi.org/10.1002/cam4.5133
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author Olumide Gbolahan
Neda Hashemi‐Sadraei
Suri Yash
Grant Williams
Rekha Ramachandran
Young‐il Kim
Ravikumar Paluri
Darryl Outlaw
Bassel El‐Rayes
Lisle Nabell
author_facet Olumide Gbolahan
Neda Hashemi‐Sadraei
Suri Yash
Grant Williams
Rekha Ramachandran
Young‐il Kim
Ravikumar Paluri
Darryl Outlaw
Bassel El‐Rayes
Lisle Nabell
author_sort Olumide Gbolahan
collection DOAJ
description Abstract Background Given the dearth of data regarding the time to treatment initiation (TTI) in the palliative setting, and its impact on survival outcomes, we sought to determine TTI in a real‐world cohort of metastatic colorectal cancer (mCRC) and metastatic pancreatic cancer (mPC) patients and evaluate the impact of TTI on real‐world survival outcomes. Methods We collected survival and treatment data for mCRC and mPC from the Flatiron Health electronic health records (EHR) derived database. We divided TTI into 3 categories: < 2 weeks, 2–< 4 weeks, and 4–8 weeks, from diagnosis to first‐line therapy. Outcome measures were median TTI, real‐world overall survival (RW‐OS) based on TTI categories by Kaplan–Meier method, and impact of TTI on survival using cox proportional hazard models. Results Among 7108 and 3231 patients with mCRC and mPC treated within 8 weeks of diagnosis, the median TTI were 28 days and 20 days. Median RW‐OS for mCRC was 24 months; 26.9 months versus 22.6 and 18.05 months in the 4–8‐week, 2–< 4 week (control) and < 2‐week groups, respectively (p < 0.0001). For mPC, median RW‐OS was 8 months, without significant difference in RW‐OS among the groups (p = 0.05). The 4–8‐week group was associated with lower hazard of death (HR 0.782, 95% CI 0.73–0.84, p < 0.0001) and the < 2‐week group was associated with a higher hazard of death (HR 1.26, 95% CI 1.15–1.38, p < 0.0001) in mCRC. The 4–8‐week group was associated with lower hazard of death for mPC (HR 0.88, 95% CI 0.8–0.97, p = 0.0094). Conclusion In a real‐world cohort of patients treated within 8 weeks of diagnosis, and with the limitations of a retrospective study, later TTI did not have a negative impact on survival outcomes in mCRC and mPC.
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spelling doaj.art-bd2a53f915e34245a391e912115455d02023-02-19T18:54:08ZengWileyCancer Medicine2045-76342023-02-011233488349810.1002/cam4.5133Time to treatment initiation and its impact on real‐world survival in metastatic colorectal cancer and pancreatic cancerOlumide Gbolahan0Neda Hashemi‐Sadraei1Suri Yash2Grant Williams3Rekha Ramachandran4Young‐il Kim5Ravikumar Paluri6Darryl Outlaw7Bassel El‐Rayes8Lisle Nabell9Birmingham School of Medicine and O'Neal Comprehensive Cancer Center University of Alabama Birmingham Alabama USAUniversity of New Mexico School of Medicine New Mexico USABirmingham School of Medicine and O'Neal Comprehensive Cancer Center University of Alabama Birmingham Alabama USABirmingham School of Medicine and O'Neal Comprehensive Cancer Center University of Alabama Birmingham Alabama USADivision of Preventive Medicine University of Alabama School of Medicine Birmingham Alabama USADivision of Preventive Medicine University of Alabama School of Medicine Birmingham Alabama USABirmingham School of Medicine and O'Neal Comprehensive Cancer Center University of Alabama Birmingham Alabama USABirmingham School of Medicine and O'Neal Comprehensive Cancer Center University of Alabama Birmingham Alabama USAEmory University School of Medicine, and Winship Cancer Institute GeorgiaBirmingham School of Medicine and O'Neal Comprehensive Cancer Center University of Alabama Birmingham Alabama USAAbstract Background Given the dearth of data regarding the time to treatment initiation (TTI) in the palliative setting, and its impact on survival outcomes, we sought to determine TTI in a real‐world cohort of metastatic colorectal cancer (mCRC) and metastatic pancreatic cancer (mPC) patients and evaluate the impact of TTI on real‐world survival outcomes. Methods We collected survival and treatment data for mCRC and mPC from the Flatiron Health electronic health records (EHR) derived database. We divided TTI into 3 categories: < 2 weeks, 2–< 4 weeks, and 4–8 weeks, from diagnosis to first‐line therapy. Outcome measures were median TTI, real‐world overall survival (RW‐OS) based on TTI categories by Kaplan–Meier method, and impact of TTI on survival using cox proportional hazard models. Results Among 7108 and 3231 patients with mCRC and mPC treated within 8 weeks of diagnosis, the median TTI were 28 days and 20 days. Median RW‐OS for mCRC was 24 months; 26.9 months versus 22.6 and 18.05 months in the 4–8‐week, 2–< 4 week (control) and < 2‐week groups, respectively (p < 0.0001). For mPC, median RW‐OS was 8 months, without significant difference in RW‐OS among the groups (p = 0.05). The 4–8‐week group was associated with lower hazard of death (HR 0.782, 95% CI 0.73–0.84, p < 0.0001) and the < 2‐week group was associated with a higher hazard of death (HR 1.26, 95% CI 1.15–1.38, p < 0.0001) in mCRC. The 4–8‐week group was associated with lower hazard of death for mPC (HR 0.88, 95% CI 0.8–0.97, p = 0.0094). Conclusion In a real‐world cohort of patients treated within 8 weeks of diagnosis, and with the limitations of a retrospective study, later TTI did not have a negative impact on survival outcomes in mCRC and mPC.https://doi.org/10.1002/cam4.5133colorectal neoplasmsdecision makingoutcome assessmentpancreatic neoplasmstime‐to‐treatment
spellingShingle Olumide Gbolahan
Neda Hashemi‐Sadraei
Suri Yash
Grant Williams
Rekha Ramachandran
Young‐il Kim
Ravikumar Paluri
Darryl Outlaw
Bassel El‐Rayes
Lisle Nabell
Time to treatment initiation and its impact on real‐world survival in metastatic colorectal cancer and pancreatic cancer
Cancer Medicine
colorectal neoplasms
decision making
outcome assessment
pancreatic neoplasms
time‐to‐treatment
title Time to treatment initiation and its impact on real‐world survival in metastatic colorectal cancer and pancreatic cancer
title_full Time to treatment initiation and its impact on real‐world survival in metastatic colorectal cancer and pancreatic cancer
title_fullStr Time to treatment initiation and its impact on real‐world survival in metastatic colorectal cancer and pancreatic cancer
title_full_unstemmed Time to treatment initiation and its impact on real‐world survival in metastatic colorectal cancer and pancreatic cancer
title_short Time to treatment initiation and its impact on real‐world survival in metastatic colorectal cancer and pancreatic cancer
title_sort time to treatment initiation and its impact on real world survival in metastatic colorectal cancer and pancreatic cancer
topic colorectal neoplasms
decision making
outcome assessment
pancreatic neoplasms
time‐to‐treatment
url https://doi.org/10.1002/cam4.5133
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