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284762

Total Neoadjuvant Therapy Using Short Course Radiotherapy Followed by Chemotherapy in Locally Advanced Rectal Cancer

Article

Last updated: 24 Dec 2024

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Abstract

Background: The most common neoadjuvant therapy for locally advanced rectal cancer is fluoropyrimidine-based chemotherapy combined with radiation (45-50.4 Gy) (LARC). Recently many studies focusing on shifting systemic chemotherapy to preoperative setting to increase pathological complete response rate (pCR). Patients & Methods: This is a randomized controlled trial (RCT) of stage II-III rectal cancer patients treated from October 2020 to April 2022. They were randomized into: Experimental group: Total neoadjuvant therapy (TNT) with short course radiotherapy (25 Gy) then chemotherapy (Capecitabine and Oxaliplatin) for 6 cycles followed by total mesorectal excision (TME). Control group:  Standard long course concurrent chemo radiotherapy (LC-CCRT, 45-50.4Gy) with Capecitabine followed by TME and adjuvant chemotherapy. Primary end points were pathological complete response (pCR) and disease related treatment failure (DrTF). Secondary end points were restricted mean survival time at 12 months (RMST), toxicity and surgical complications. Results: High risk criteria as N2 and infiltrated mesorectal fascia (MRF) were statistically higher in TNT group (p=0.005, p= 0.04 respectively). Complete response was achieved radiologically in 11.5% and pathologically in 33.3 % exclusively in TNT group. Restricted mean survival time (RMST) at 12 months was 11.6 months in TNT group and 11.1 months in control group. Pathological complete response was statistically correlated to improvement in DrTF and RMST at 12 months (p =0.01). Conclusion: Short course radiotherapy with neoadjuvant chemotherapy is a good alternative to the standard LC-CCRT with less hospital treatment days and cost especially after COVID 19 pandemic.  

DOI

10.21608/ejhm.2023.284762

Keywords

Locally advanced rectal cancer, Total neoadjuvant therapy, Short course radiotherapy

Authors

First Name

Sara Mahmoud

Last Name

Elzayata

MiddleName

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Affiliation

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Email

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City

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Orcid

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First Name

Fatma M. F.

Last Name

Akla

MiddleName

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Affiliation

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Email

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City

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Orcid

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First Name

Saleh Mansour

Last Name

Taemaa

MiddleName

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Affiliation

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Email

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City

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Orcid

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First Name

Osama Mohammed

Last Name

Eldamshetya

MiddleName

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Affiliation

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Email

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City

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Orcid

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First Name

Dalia

Last Name

zayed

MiddleName

hatem

Affiliation

Assistant professor of clinical oncology and nuclear medicine, faculty of medicine, mansoura university, egypt

Email

dhmzayed@gmail.com

City

Mansoura

Orcid

-

Volume

90

Article Issue

1

Related Issue

38787

Issue Date

2023-01-01

Receive Date

2023-02-09

Publish Date

2023-01-01

Page Start

1,915

Page End

1,922

Print ISSN

1687-2002

Online ISSN

2090-7125

Link

https://ejhm.journals.ekb.eg/article_284762.html

Detail API

https://ejhm.journals.ekb.eg/service?article_code=284762

Order

286

Type

Original Article

Type Code

606

Publication Type

Journal

Publication Title

The Egyptian Journal of Hospital Medicine

Publication Link

https://ejhm.journals.ekb.eg/

MainTitle

Total Neoadjuvant Therapy Using Short Course Radiotherapy Followed by Chemotherapy in Locally Advanced Rectal Cancer

Details

Type

Article

Created At

24 Dec 2024