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Postoperative Complications After Neoadjuvant Chemoradiotherapy or Short-course Radiotherapy and Total Neoadjuvant Treatment: a Multicentric Retrospective Cohort Study

Postoperative Complications After Neoadjuvant Chemoradiotherapy or Short-course Radiotherapy and Total Neoadjuvant Treatment: a Multicentric Retrospective Cohort Study

Status
Enrolling by invitation
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07346248
Acronym
POCAT
Enrollment
266
Registered
2026-01-16
Start date
2025-07-21
Completion date
2026-07-31
Last updated
2026-01-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Adult Patients With Locally Advanced Rectal Cancer Indicated to Neoadjuvant Therapy and Surgery

Brief summary

The primary objective of the study is to compare the rate of postoperative complications between rectal cancer patients undergoing standard neoadjuvant chemoradiotherapy or short- course radiotherapy and patients receiving TNT. The secondary objectives of the study include the evaluation of treatment-related adverse reactions and postoperative complications in elderly patients receiving the treatments and the comparison of treatment-related adverse reactions and postoperative complications in patients receiving induction versus consolidation TNT.

Interventions

PROCEDUREChemoradiotherapy

Comparing

Sponsors

Istituto Clinico Humanitas
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients with locally advanced (T2N+, T3N+, T4N0, or T4N+) rectal adenocarcinoma who underwent neoadjuvant chemoradiotherapy or short-course radiotherapy or TNT and surgery between January 2016 and January 2025; * Patients who underwent restorative or non-restorative surgery; * Patients undergoing open, laparoscopic, or robotic intervention.

Exclusion criteria

* Patients who underwent non-operative management after neoadjuvant treatment.

Design outcomes

Primary

MeasureTime frameDescription
90 days postoperative complications12 monthsThe primary endpoint of the study is the rate of 90-day postoperative complications between the study cohorts.
The primary endpoint of the study is the rate of 90-day postoperative complications between the study cohorts.3 monthsThe primary endpoint of the study is the rate of 90-day postoperative complications between the study cohorts.

Secondary

MeasureTime frameDescription
Treatment-related adverse reactions12 monthsThe rate of treatment-related adverse reactions between the study cohorts.
Severe treatment-related adverse reactions12 monthsThe rate of severe treatment-related adverse reactions between the study cohorts.
90-day postoperative complications between patients receiving neoadjuvant chemoradiotherapy,short-course radiotherapy, induction TNT, and consolidation TNT.12 monthsThe rate of 90-day postoperative complications between patients receiving neoadjuvant chemoradiotherapy,short-course radiotherapy, induction TNT, and consolidation TNT.
90 days severe postoperative complications between the cohorts12 monthsThe rate of 90-day severe postoperative complications between the study cohorts.
The rate of 90-day postoperative complications between the two cohorts in a sub-population of elderly patients12 monthsThe rate of 90-day postoperative complications between the two cohorts in a sub-population of elderly patients (≥ 70 years old at the time of diagnosis).
The rate of treatment-related adverse reactions between the study cohorts in a sub-population of elderly patients12 monthsThe rate of treatment-related adverse reactions between the study cohorts in a sub-population of elderly patients (≥ 70 years old at the time of diagnosis).
Treatment-related adverse reactions between patients receiving neoadjuvant chemoradiotherapy,short-course radiotherapy, induction TNT, and consolidation TNT12 monthsThe rate of treatment-related adverse reactions between patients receiving neoadjuvant chemoradiotherapy,short-course radiotherapy, induction TNT, and consolidation TNT.
90-day Comprehensive Complication Index12 monthsThe median of the 90-day Comprehensive Complication Index (CCI) between the study cohorts.

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026