Lumeneye Rectoscope for Assessment on Tumor Response After Total Neoadjuvant Treatment in Rectal Cancer

NCT ID: NCT06189846

Last Updated: 2025-09-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-01-04

Study Completion Date

2025-09-30

Brief Summary

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The objective of this prospective international cohort is to evaluate the LUMENEYE rectoscope for assessment on tumor response after total neoadjuvant treatment in rectal cancer.

Patients included in this study will be patients who initially will be good candidates for organ preservation. The participating centers are all expert centers in tumor assessment.

All patient assessments after neoadjuvant treatment for rectal adenocarcinoma will be included in each centre.

Detailed Description

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The recent validation of the Total Neoadjuvant Treatment (TNT) protocol and the improvement of techniques for evaluating tumor response are two major factors in the development of organ preservation in rectal cancer.

Although recent publications have shown promising results of the two organ preservation strategies, Watch \& Wait and Local excision, with a low oncological risk, some challenges remain to be addressed before the generalization of rectal preservation in clinical practice.

Among these challenges, the improvement of patient selection and methods for evaluating tumor response appear necessary. The monitoring scheme for the tumor response has not yet been clearly established, but a 6 months programme of tumor response assessment has been recently published (Boubaddi EJSO 2023). Monitoring must consist of a clinical assessment (rectal examination and/or rectoscopy) and additional morphological examinations (rectal MRI) every two months.

Tumor response after neoadjuvant treatment by MRI (TRG 1-5, Tumor Regression Grade) is established as a reliable method of tumor response assessment and accurate diagnosis of complete clinical response. However, discrepancies between clinical examination and radiological MRI may exist and patients undergoing watch-and-wait who develop local regrowth due to mistake in initial tumour response assessment are at higher risk for development of distant metastases (Sao Juliao DCR 2023) with a poor impact on long term oncological results.

The development of the LumenEye digital rectoscope by the SurgEase company enables a comfortable and efficient scoping for the user and the patient (Lewis J BJGP Open 2022). With high quality images of Full HD images and video associated with a secure and connected intuitive software platform, this endoscope can have its place in the monitoring of tumor response.

The contribution of this technology to the monitoring of the tumor response needs to be assessed. This medical device is CE marked and used in its intended purpose.

The objective of this study is to evaluate the complete and/or nearly complete response with LumenEye digital rectoscope.

Conditions

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Rectal Cancer

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Interventions

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International Cohort

Assessing tumour response following neoadjuvant treatment in rectal cancer include :

* Digital rectal examination
* Rectal MRI
* Rectoscopy ( Lumeneye device)

The monitoring of tumour response intervals up to 6 months following completion of the neoadjuvant treatment at 8 weeks, at 16 weeks, at 24 weeks after the end of neoadjuvant treatment.

Intervention Type DEVICE

Eligibility Criteria

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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).
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Bordeaux Colorectal Institute Academy

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Quentin DENOST

Role: STUDY_DIRECTOR

Bordeaux Colorectal Institute

Locations

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Clinique Tivoli-Ducos - Bordeaux Colorectal Institute

Bordeaux, , France

Site Status RECRUITING

Hôpital Européen de Marseille

Marseille, , France

Site Status RECRUITING

Hôpital Saint-Antoine - APHP

Paris, , France

Site Status RECRUITING

CHU de ROUEN

Rouen, , France

Site Status NOT_YET_RECRUITING

Humanitas Research Hospital

Milan, , Italy

Site Status RECRUITING

Amsterdam UMC

Amsterdam, , Netherlands

Site Status RECRUITING

University Hospital Vall D'Hebron

Barcelona, , Spain

Site Status RECRUITING

Imperial College London

London, , United Kingdom

Site Status NOT_YET_RECRUITING

Countries

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France Italy Netherlands Spain United Kingdom

Central Contacts

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Quentin DENOST, Prof

Role: CONTACT

+33 547501575

Stéphanie GUILLON

Role: CONTACT

+33 668686805

Facility Contacts

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Quentin DENOST, Prof

Role: primary

+33547501575

Antoine CAMERLO

Role: primary

Jérémie LEFEVRE

Role: primary

Jean-Jacques TUECH

Role: primary

Antonino SPINELLI

Role: primary

Roel HOMPES

Role: primary

Eloy ESPIN

Role: primary

James KINROSS

Role: primary

Other Identifiers

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BCIA 2023/02

Identifier Type: -

Identifier Source: org_study_id

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