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Clinical Trials/NCT04717947
NCT04717947
Unknown
Not Applicable

Interval Between Neoadjuvant Therapy and Surgery in the Treatment of Locally Advanced Rectal Cancer

Hospital Clinic of Barcelona1 site in 1 country911 target enrollmentFebruary 25, 2020

Overview

Phase
Not Applicable
Intervention
Not specified
Conditions
Rectal Cancer
Sponsor
Hospital Clinic of Barcelona
Enrollment
911
Locations
1
Primary Endpoint
Distal resection margin (DRM)
Last Updated
5 years ago

Overview

Brief Summary

The investigators evaluate the response of rectal cancer to neoadjuvant therapy and classify the response according to specific periods of time after the end of neoadjuvant treatment.

Detailed Description

In the treatment of locally advanced rectal cancer, an optimal interval between neoadjuvant therapy and surgery might improve oncological outcomes. Besides, those patients who achieve a good response might benefit from active surveillance, avoiding surgical comorbidities. This optimal interval is yet to be defined. This study will aim to better define the role of time interval between the end of neoadjuvant therapy (NAT) and TME in Spanish regions, together with analyzing the importance of restaging MRI and define the basis for implementing a "watch and wait" protocol.

Registry
clinicaltrials.gov
Start Date
February 25, 2020
End Date
June 25, 2021
Last Updated
5 years ago
Study Type
Observational
Sex
All

Investigators

Responsible Party
Sponsor

Eligibility Criteria

Inclusion Criteria

  • Adult patients suitable for elective surgical resection of biopsy-confirmed rectal adenocarcinoma (0-15 cm from the anal verge) determined by rectal cancer protocol magnetic resonance imaging.
  • Patients treated with long-course neoadjuvant chemoradiotherapy (nCRT).
  • Patients treated with short-course radiotherapy with delayed surgery.
  • Clinical stage IIA, IIB, IIIA, IIIB, IIIC (cT3/cT4, or cN1/cN2 with any cT, M0) determined by rectal cancer protocol magnetic resonance imaging

Exclusion Criteria

  • Intolerance or contraindication to planned NAT.
  • Patients who have not finished NAT for any reason.
  • Patients with unknown cT or cM.
  • Tumors previously treated with local excision or with distant metastatic disease.

Outcomes

Primary Outcomes

Distal resection margin (DRM)

Time Frame: 2000-2019

Described as free (DRM \>1 mm)

Quality of the specimen

Time Frame: 2000-2019

Described as complete or incomplete

Pathological response

Time Frame: 2000-2019

Grade as complete

Circumferential margin (CRM)

Time Frame: 2000-2019

Described as free (CRM \>1 mm)

Study Sites (1)

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