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Neoadjuvant Radiotherapy vs Upfront Surgery in Locally Advanced Proximal Rectal Cancer
Sponsor: Istanbul University
Summary
The PRELUDE Study: A Prospective Cohort Study Comparing Neoadjuvant Radiotherapy Followed by Total Mesorectal Excision Versus Upfront Surgery in Patients with Locally Advanced Proximal Rectal Cancer The PRELUDE Study is a single-center, prospective cohort study designed to compare neoadjuvant radiotherapy followed by total mesorectal excision (TME) with upfront surgery alone in patients with locally advanced proximal rectal cancer. The primary endpoint is the rate of local recurrence. Secondary endpoints include overall survival, disease-free survival, and functional outcomes related to bowel, urinary, and sexual function. The aim of this study is to determine whether neoadjuvant radiotherapy reduces the risk of local recurrence and improves long-term oncological and functional outcomes in this anatomically distinct subgroup of patients with rectal cancer.
Official title: The PRELUDE Study: A Prospective Cohort Study Comparing Neoadjuvant Radiotherapy Followed by Total Mesorectal Excision Versus Upfront Surgery in Patients With Locally Advanced Proximal Rectal Cancer
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
100
Start Date
2026-04-06
Completion Date
2031-12-01
Last Updated
2026-09-03
Healthy Volunteers
No
Conditions
Interventions
radiotherapy
Neoadjuvant Radiotherapy
surgery
Upfront Surgery
Locations (1)
İstanbul Univercity Faculty of Medicine
Istanbul, Turkey (Türkiye)