Using Lumeneye Rectoscope to Evaluate Tumor Response in Rectal Cancer After Treatment

Prospective Study Incorporating LUMENEYE Rectoscope for Assessment on Tumor Response After Total Neoadjuvant Treatment in Rectal Cancer

Observational Bordeaux Colorectal Institute Academy · NCT06189846

This study is testing if the LUMENEYE rectoscope can help doctors see how well treatment is working for patients with rectal cancer who are hoping to keep their organs.

Quick facts

Study typeObservational
Enrollment100 (estimated)
Ages18 Years and up
SexAll
SponsorBordeaux Colorectal Institute Academy Academic / other
Drugs / interventionschemotherapy, immunotherapy
Locations8 sites (Bordeaux and 7 other locations)
Trial IDNCT06189846 on ClinicalTrials.gov

What this trial studies

This observational study aims to assess the effectiveness of the LUMENEYE rectoscope in evaluating tumor response following total neoadjuvant treatment in patients with rectal cancer. It involves a prospective international cohort of patients who are candidates for organ preservation. The study will include clinical assessments and morphological examinations, such as rectal MRI, to monitor tumor response over a six-month period. The goal is to improve patient selection and evaluation methods for organ preservation strategies in rectal cancer treatment.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 and older with histologically confirmed adenocarcinoma of the rectum who have undergone total neoadjuvant treatment.

Not a fit: Patients with advanced tumors (cT1 or cT4), those with metastasis, or individuals with a history of inflammatory bowel disease may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the accuracy of tumor response assessments, leading to better organ preservation outcomes for rectal cancer patients.

How similar studies have performed: Other studies have shown promising results with organ preservation strategies in rectal cancer, indicating that this approach may build on existing knowledge.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patient ≥ 18 years
* Histologically confirmed diagnosis of adenocarcinoma of the rectum,
* Patient who received radiotherapy and chemotherapy (TNT) or immunotherapy
* Stage cT2T3
* cN0 or cN1 (≤ 3 positive LN or size ≤ 8 mm)
* no metastases
* Baseline Tumour size ≤ 5 cm (MRI)
* Baseline Tumour ≤ 8 from anal verge
* Ability to consent.
* Oral agreement after reading information letter

Exclusion Criteria:

* Tumour cT1 or cT4
* Baseline Tumour size \> 5cm
* Invaded external sphincter or levator muscle
* Tumour cN2 (\> 3 positive LN or size \> 8 mm)
* Metastasis
* History of Inflammatory bowel disease
* Patient with a history of pelvic radiotherapy or chemotherapy
* Pregnant patients
* Protected adults (individuals under guardianship by court order).

Where this trial is running

Bordeaux and 7 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Rectal Cancer
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.