Timing of Surgery and Social Determinants of Health Related to Pathologic Complete Response after Total Neoadjuvant Therapy for Rectal Adenocarcinoma: Retrospective Study of National Cancer Database

Total neoadjuvant therapy (TNT) for rectal adenocarcinoma (RAC) involves multi-agent chemotherapy and radiation before definitive surgery. Previous studies of the rest period (time between radiation and surgery) and pathologic complete response (pCR) have produced mixed results. The objective of thi...

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Main Authors: Megan Mai, Jodi Goldman, Duke Appiah, Ramzi Abdulrahman, John Kidwell, Zheng Shi
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Current Oncology
Subjects:
Online Access:https://www.mdpi.com/1718-7729/31/3/97
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author Megan Mai
Jodi Goldman
Duke Appiah
Ramzi Abdulrahman
John Kidwell
Zheng Shi
author_facet Megan Mai
Jodi Goldman
Duke Appiah
Ramzi Abdulrahman
John Kidwell
Zheng Shi
author_sort Megan Mai
collection DOAJ
description Total neoadjuvant therapy (TNT) for rectal adenocarcinoma (RAC) involves multi-agent chemotherapy and radiation before definitive surgery. Previous studies of the rest period (time between radiation and surgery) and pathologic complete response (pCR) have produced mixed results. The objective of this study was to evaluate the relationship between the rest period and pCR. This study utilized the National Cancer Database (NCDB) to retrospectively analyze 5997 stage-appropriate RAC cases treated with TNT from 2016 to 2020. The overall pCR rate was 18.6%, with most patients undergoing induction chemotherapy followed by long-course chemoradiation (81.5%). Multivariable logistic regression models revealed a significant non-linear relationship between the rest period and pCR (<i>p</i> = 0.033), with optimal odds at 14.7–15.9 weeks post radiation (odds ratio: 1.49, 95% confidence interval: 1.13–1.98) when compared to 4.0 weeks. Medicaid, distance to the treatment facility, and community education were associated with decreased odds of pCR. Findings highlight the importance of a 15–16-week post-radiation surgery window for achieving pCR in RAC treated with TNT and socioeconomic factors influencing pCR rates. Findings also emphasize the need for clinical trials to incorporate detailed analyses of the rest period and social determinant of health to better guide clinical practice.
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spelling doaj.art-0e87b39b81ea4b85bc13638de030aefe2024-03-27T13:32:42ZengMDPI AGCurrent Oncology1198-00521718-77292024-02-013131291130110.3390/curroncol31030097Timing of Surgery and Social Determinants of Health Related to Pathologic Complete Response after Total Neoadjuvant Therapy for Rectal Adenocarcinoma: Retrospective Study of National Cancer DatabaseMegan Mai0Jodi Goldman1Duke Appiah2Ramzi Abdulrahman3John Kidwell4Zheng Shi5School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USASchool of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USADepartment of Public Health, School of Population and Public Health, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USASchool of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USASchool of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USASchool of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USATotal neoadjuvant therapy (TNT) for rectal adenocarcinoma (RAC) involves multi-agent chemotherapy and radiation before definitive surgery. Previous studies of the rest period (time between radiation and surgery) and pathologic complete response (pCR) have produced mixed results. The objective of this study was to evaluate the relationship between the rest period and pCR. This study utilized the National Cancer Database (NCDB) to retrospectively analyze 5997 stage-appropriate RAC cases treated with TNT from 2016 to 2020. The overall pCR rate was 18.6%, with most patients undergoing induction chemotherapy followed by long-course chemoradiation (81.5%). Multivariable logistic regression models revealed a significant non-linear relationship between the rest period and pCR (<i>p</i> = 0.033), with optimal odds at 14.7–15.9 weeks post radiation (odds ratio: 1.49, 95% confidence interval: 1.13–1.98) when compared to 4.0 weeks. Medicaid, distance to the treatment facility, and community education were associated with decreased odds of pCR. Findings highlight the importance of a 15–16-week post-radiation surgery window for achieving pCR in RAC treated with TNT and socioeconomic factors influencing pCR rates. Findings also emphasize the need for clinical trials to incorporate detailed analyses of the rest period and social determinant of health to better guide clinical practice.https://www.mdpi.com/1718-7729/31/3/97rectal cancertotal neoadjuvant therapypathologic complete response
spellingShingle Megan Mai
Jodi Goldman
Duke Appiah
Ramzi Abdulrahman
John Kidwell
Zheng Shi
Timing of Surgery and Social Determinants of Health Related to Pathologic Complete Response after Total Neoadjuvant Therapy for Rectal Adenocarcinoma: Retrospective Study of National Cancer Database
Current Oncology
rectal cancer
total neoadjuvant therapy
pathologic complete response
title Timing of Surgery and Social Determinants of Health Related to Pathologic Complete Response after Total Neoadjuvant Therapy for Rectal Adenocarcinoma: Retrospective Study of National Cancer Database
title_full Timing of Surgery and Social Determinants of Health Related to Pathologic Complete Response after Total Neoadjuvant Therapy for Rectal Adenocarcinoma: Retrospective Study of National Cancer Database
title_fullStr Timing of Surgery and Social Determinants of Health Related to Pathologic Complete Response after Total Neoadjuvant Therapy for Rectal Adenocarcinoma: Retrospective Study of National Cancer Database
title_full_unstemmed Timing of Surgery and Social Determinants of Health Related to Pathologic Complete Response after Total Neoadjuvant Therapy for Rectal Adenocarcinoma: Retrospective Study of National Cancer Database
title_short Timing of Surgery and Social Determinants of Health Related to Pathologic Complete Response after Total Neoadjuvant Therapy for Rectal Adenocarcinoma: Retrospective Study of National Cancer Database
title_sort timing of surgery and social determinants of health related to pathologic complete response after total neoadjuvant therapy for rectal adenocarcinoma retrospective study of national cancer database
topic rectal cancer
total neoadjuvant therapy
pathologic complete response
url https://www.mdpi.com/1718-7729/31/3/97
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