NCT07134296

Brief Summary

The goal of this clinical trial is to learn if the use of MRI-guided irradiation increases the rates of rectal preservation

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
32

participants targeted

Target at P25-P50 for not_applicable

Timeline
51mo left

Started Oct 2025

Longer than P75 for not_applicable

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress13%
Oct 2025Jun 2030

First Submitted

Initial submission to the registry

August 12, 2025

Completed
9 days until next milestone

First Posted

Study publicly available on registry

August 21, 2025

Completed
1 month until next milestone

Study Start

First participant enrolled

October 1, 2025

Completed
4.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2030

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2030

Last Updated

August 21, 2025

Status Verified

August 1, 2025

Enrollment Period

4.7 years

First QC Date

August 12, 2025

Last Update Submit

August 20, 2025

Conditions

Keywords

TNTMRI-guided IrradiationRectal Preservation

Outcome Measures

Primary Outcomes (1)

  • Total Mesorectal Excision (TME)-free survival

    To achieve 3-year TME-free survival of 75% while keeping 3-year DFS rates of 75%.

    5-years

Secondary Outcomes (2)

  • Proctitis/Rectal Bleeding

    5-years

  • Fecal Continence

    5-years

Study Arms (1)

Dose Escalation Phase

EXPERIMENTAL

Dose Escalation MR-guided TNT

Radiation: MR-Guided Irradiation

Interventions

MR-Guided Irradiation

Dose Escalation Phase

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients aged 18 or older with primary Stage II (T3-4, N0) or Stage III (any T, N1-2) biopsy-proven rectal cancer
  • No prior radiation therapy to the target areas;
  • ECOG 0-2 with medical status not contraindicating treatment with radical intent including TNT and TME (if required) and with basal laboratory values as follows:
  • Absolute neutrophil count (ANC) ≥ 1,000 cells/mm3
  • Platelets ≥ 50,000 cells/mm3.
  • Hemoglobin ≥ 8.0 g/dl.
  • Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) \< 4 x upper limit of normal.
  • Total bilirubin \< 2 x upper normal mg/dL.
  • Alkaline phosphatase \< 4 x upper limit of normal.

You may not qualify if:

  • Patient unable to undergo an MRI examination

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Rectal Neoplasms

Condition Hierarchy (Ancestors)

Colorectal NeoplasmsIntestinal NeoplasmsGastrointestinal NeoplasmsDigestive System NeoplasmsNeoplasms by SiteNeoplasmsDigestive System DiseasesGastrointestinal DiseasesIntestinal DiseasesRectal Diseases

Study Officials

  • Rafael Martínez-Monge, M.D.

    Clínica Universidad de Navarra

    PRINCIPAL INVESTIGATOR
  • Luis Fuertes, M.D.

    Clínica Universidad de Navarra

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Beatriz Ramos Aguirre, M.S.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 12, 2025

First Posted

August 21, 2025

Study Start

October 1, 2025

Primary Completion (Estimated)

June 30, 2030

Study Completion (Estimated)

June 30, 2030

Last Updated

August 21, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will share

On request

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
Time Frame
5-years
Access Criteria
On request