The Impact on Survival of Neoadjuvant Treatment Interruptions in Locally Advanced Rectal Cancer Patients

The standard oncologic treatment of locally advanced rectal cancer is long-course radio-chemotherapy followed by surgery and adjuvant chemotherapy. This can result in a lengthy total treatment duration, sometimes up to one year from the diagnosis. Interruptions to neoadjuvant treatment can occur for...

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Main Authors: Horia-Dan Lișcu, Ionut-Lucian Antone-Iordache, Dimitrie-Ionuț Atasiei, Ioana Valentina Anghel, Andreea-Teodora Ilie, Taraneh Emamgholivand, Andreea-Iuliana Ionescu, Florica Șandru, Christopher Pavel, Flavia Ultimescu
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Journal of Personalized Medicine
Subjects:
Online Access:https://www.mdpi.com/2075-4426/14/3/266
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author Horia-Dan Lișcu
Ionut-Lucian Antone-Iordache
Dimitrie-Ionuț Atasiei
Ioana Valentina Anghel
Andreea-Teodora Ilie
Taraneh Emamgholivand
Andreea-Iuliana Ionescu
Florica Șandru
Christopher Pavel
Flavia Ultimescu
author_facet Horia-Dan Lișcu
Ionut-Lucian Antone-Iordache
Dimitrie-Ionuț Atasiei
Ioana Valentina Anghel
Andreea-Teodora Ilie
Taraneh Emamgholivand
Andreea-Iuliana Ionescu
Florica Șandru
Christopher Pavel
Flavia Ultimescu
author_sort Horia-Dan Lișcu
collection DOAJ
description The standard oncologic treatment of locally advanced rectal cancer is long-course radio-chemotherapy followed by surgery and adjuvant chemotherapy. This can result in a lengthy total treatment duration, sometimes up to one year from the diagnosis. Interruptions to neoadjuvant treatment can occur for a variety of reasons, forced or unforced. The main purpose of this study is to analyze the survival data of locally advanced rectal cancer patients who received neoadjuvant treatment and to find a cut-off point showing exactly how many days of interruption of neoadjuvant treatment the risk of death or disease relapse increases. We conducted a retrospective study on 299 patients with locally advanced rectal cancer using survival analysis (Kaplan–Meier curve and Cox regression) to determine survival probabilities for overall survival, local control, and disease-free survival. Patients with 0 to 3 days of neoadjuvant therapy interruption had a higher overall survival probability compared to patients with 4 or more days (90.2% compared to 57.9%, <i>p</i>-value < 0.001), hazard ratio 5.89 (<i>p</i> < 0.001). Local control and disease-free survival had a higher probability in patients with 0–2 days of interruption compared to people with 3 or more days (94% vs. 75.4%, and 82.2% vs. 50.5%, respectively, both <i>p</i>-values < 0.001). Patients with tumoral or nodal downstaging experienced fewer days of interruption than patients with no downstage. These findings reinforce the need for radiation oncologists to be well-organized when starting neoadjuvant treatment for rectal cancer, in order to anticipate and prevent potential treatment interruptions and achieve the best therapeutic results.
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spelling doaj.art-bfca750b900141839350b2e3105603022024-03-27T13:50:07ZengMDPI AGJournal of Personalized Medicine2075-44262024-02-0114326610.3390/jpm14030266The Impact on Survival of Neoadjuvant Treatment Interruptions in Locally Advanced Rectal Cancer PatientsHoria-Dan Lișcu0Ionut-Lucian Antone-Iordache1Dimitrie-Ionuț Atasiei2Ioana Valentina Anghel3Andreea-Teodora Ilie4Taraneh Emamgholivand5Andreea-Iuliana Ionescu6Florica Șandru7Christopher Pavel8Flavia Ultimescu9Discipline of Oncological Radiotherapy and Medical Imaging, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, RomaniaDiscipline of Oncological Radiotherapy and Medical Imaging, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, RomaniaDiscipline of Oncological Radiotherapy and Medical Imaging, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, RomaniaDiscipline of Oncological Radiotherapy and Medical Imaging, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, RomaniaDiscipline of Oncological Radiotherapy and Medical Imaging, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, RomaniaDiscipline of Oncological Radiotherapy and Medical Imaging, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, RomaniaDiscipline of Oncological Radiotherapy and Medical Imaging, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, RomaniaDepartment of Dermatology, Elias University Emergency Hospital, 011461 Bucharest, RomaniaDepartment of Gastroenterology, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, RomaniaDepartment of Pathology, Institute of Oncology “Prof. Dr. Alexandru Trestioreanu”, 022328 Bucharest, RomaniaThe standard oncologic treatment of locally advanced rectal cancer is long-course radio-chemotherapy followed by surgery and adjuvant chemotherapy. This can result in a lengthy total treatment duration, sometimes up to one year from the diagnosis. Interruptions to neoadjuvant treatment can occur for a variety of reasons, forced or unforced. The main purpose of this study is to analyze the survival data of locally advanced rectal cancer patients who received neoadjuvant treatment and to find a cut-off point showing exactly how many days of interruption of neoadjuvant treatment the risk of death or disease relapse increases. We conducted a retrospective study on 299 patients with locally advanced rectal cancer using survival analysis (Kaplan–Meier curve and Cox regression) to determine survival probabilities for overall survival, local control, and disease-free survival. Patients with 0 to 3 days of neoadjuvant therapy interruption had a higher overall survival probability compared to patients with 4 or more days (90.2% compared to 57.9%, <i>p</i>-value < 0.001), hazard ratio 5.89 (<i>p</i> < 0.001). Local control and disease-free survival had a higher probability in patients with 0–2 days of interruption compared to people with 3 or more days (94% vs. 75.4%, and 82.2% vs. 50.5%, respectively, both <i>p</i>-values < 0.001). Patients with tumoral or nodal downstaging experienced fewer days of interruption than patients with no downstage. These findings reinforce the need for radiation oncologists to be well-organized when starting neoadjuvant treatment for rectal cancer, in order to anticipate and prevent potential treatment interruptions and achieve the best therapeutic results.https://www.mdpi.com/2075-4426/14/3/266neoadjuvant radiotherapytotal neoadjuvant treatmentlocally advanced rectal cancerdownstagetreatment interruptions
spellingShingle Horia-Dan Lișcu
Ionut-Lucian Antone-Iordache
Dimitrie-Ionuț Atasiei
Ioana Valentina Anghel
Andreea-Teodora Ilie
Taraneh Emamgholivand
Andreea-Iuliana Ionescu
Florica Șandru
Christopher Pavel
Flavia Ultimescu
The Impact on Survival of Neoadjuvant Treatment Interruptions in Locally Advanced Rectal Cancer Patients
Journal of Personalized Medicine
neoadjuvant radiotherapy
total neoadjuvant treatment
locally advanced rectal cancer
downstage
treatment interruptions
title The Impact on Survival of Neoadjuvant Treatment Interruptions in Locally Advanced Rectal Cancer Patients
title_full The Impact on Survival of Neoadjuvant Treatment Interruptions in Locally Advanced Rectal Cancer Patients
title_fullStr The Impact on Survival of Neoadjuvant Treatment Interruptions in Locally Advanced Rectal Cancer Patients
title_full_unstemmed The Impact on Survival of Neoadjuvant Treatment Interruptions in Locally Advanced Rectal Cancer Patients
title_short The Impact on Survival of Neoadjuvant Treatment Interruptions in Locally Advanced Rectal Cancer Patients
title_sort impact on survival of neoadjuvant treatment interruptions in locally advanced rectal cancer patients
topic neoadjuvant radiotherapy
total neoadjuvant treatment
locally advanced rectal cancer
downstage
treatment interruptions
url https://www.mdpi.com/2075-4426/14/3/266
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