Post-Neoadjuvant Treatment MRI Based AI System to Predict pCR for Rectal Cancer

NCT ID: NCT04278274

Last Updated: 2022-10-26

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

UNKNOWN

Total Enrollment

205 participants

Study Classification

OBSERVATIONAL

Study Start Date

2020-02-08

Study Completion Date

2023-03-31

Brief Summary

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In this study, investigators seek for a better way to identify the potential pathologic complete response (pCR) patients form non-pCR patients with locally advanced rectal cancer (LARC), based on their post-neoadjuvant treatment Magnetic Resonance Imaging (MRI) data.

Previously, a post neoadjuvant treatment MRI based radiomics AI model had been constructed and trained. Here, the predictive power of this artificial intelligence system and expert radiologist to identify pCR patients from non-pCR LARC patients will be compared in this prospective, multicenter, back-to-back clinical study

Detailed Description

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This is a multicenter, prospective, observational clinical study for seeking out a better way to predict the pathologic complete response (pCR) in patients with locally advanced rectal cancer (LARC) based on the post-neoadjuvant treatment Magnetic Resonance Imaging (MRI) data. Patients who have been pathologically diagnosed as rectal adenocarcinoma and defined as clinical II-III stage will be enrolled from the Sixth Affiliated Hospital of Sun Yat-sen University, Sir Run Run Shaw Hospital and the Third Affiliated Hospital of Kunming Medical College. All participants should follow a standard treatment protocol, including neoadjuvant treatment, total mesorectum excision (TME) surgery. Patients with LARC who received neoadjuvant treatment will be enrolled and their post-neoadjuvant treatment MRI images will be used to predict their pathologic response (pCR vs. non-pCR). The artificial intelligence prediction system and the expert radiologist will define the pathologic response as pCR or non-pCR, respectively. The pathologist will provide the final pathology report of TME surgery specimen (pCR or non-pCR) as a standard. The predictive efficacy of these two back-to-back approaches generated will be compared in this multicenter, prospective clinical study.

Conditions

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Rectal Cancer

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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patients will be evaluated by artificial intelligence system and expert radiologist

the patients with locally advanced rectal cancer (LARC) finished the neoadjuvant treatment, and not yet receive total mesorectum excision (TME) surgery will be enrolled. The post-neoadjuvant treatment MRI images features of each enrolled patients will be captured by the artificial intelligence system, and evaluated by experienced radiologists as well. Blind to the pathologic report of TME specimen, both approaches further respectively yield a predicted pathologic response to neoadjuvant treatment for each enrolled patient, shown as pCR or non-pCR.

artificial intelligence prediction system

Intervention Type PROCEDURE

The tumor ROI in the post- neoadjuvant treatment MRI images will be manually delineated, and further subjected to the AI prediction system arm to verify the predictive accuracy of this AI prediction system in identifying the pCR individuals from non-pCR patients with LARC.

the radiologists

Intervention Type PROCEDURE

The enrolled patients will be assigned to the trained experienced radiologists to evaluate their predictive accuracy in identifying the pCR individuals from non-pCR patients

Interventions

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artificial intelligence prediction system

The tumor ROI in the post- neoadjuvant treatment MRI images will be manually delineated, and further subjected to the AI prediction system arm to verify the predictive accuracy of this AI prediction system in identifying the pCR individuals from non-pCR patients with LARC.

Intervention Type PROCEDURE

the radiologists

The enrolled patients will be assigned to the trained experienced radiologists to evaluate their predictive accuracy in identifying the pCR individuals from non-pCR patients

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* pathologically diagnosed as rectal adenocarcinoma
* defined as clinical II-III staging (≥T3, and/or positive nodal status) without distant metastasis
* receive neoadjuvant chemoradiotherapy or chemotherapy
* pre- and post-neoadjuvant treatment MRI data obtained
* receive total mesorectum excision (TME) surgery after neoadjuvant therapy and get the pathologic assessment of tumor response

Exclusion Criteria

* with history of other cancer
* insufficient imaging quality of MRI to delineate tumor volume or obtain measurements (e.g., lack of sequence, motion artifacts)
* not completing neoadjuvant chemotherapy or chemoradiotherapy
* tumor recurrence or distant metastasis during neoadjuvant treatment
* not undergoing surgery resulting in lack of pathologic assessment of tumor response
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Sir Run Run Shaw Hospital

OTHER

Sponsor Role collaborator

The Third Affiliated Hospital of Kunming Medical College.

OTHER

Sponsor Role collaborator

Sixth Affiliated Hospital, Sun Yat-sen University

OTHER

Sponsor Role lead

Responsible Party

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wanxiangbo

professor of Radiation Oncology, Vice Director, Department of Radiation Oncology

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Xiangbo Wan, MD, PhD

Role: STUDY_CHAIR

Sixth Affiliated Hospital, Sun Yat-sen University

Weidong Han, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Sir Run Run Shaw Hospital

Zhenhui Li, MD

Role: PRINCIPAL_INVESTIGATOR

The Third Affiliated Hospital of Kunming Medical College.

Locations

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the Sixth Affiliated Hospital of Sun Yat-sen University

Guangzhou, Guangdong, China

Site Status RECRUITING

The Third Affiliated Hospital of Kunming Medical College

Kunming, Yunnan, China

Site Status RECRUITING

Sir Run Run Shaw Hospital

Hangzhou, Zhejiang, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Xiangbo Wan, MD, PhD

Role: CONTACT

+86 13826017157

Xinjuan Fan, MD, PhD

Role: CONTACT

020-38254037

Facility Contacts

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Xiangbo Wan, MD, PhD

Role: primary

+86 13826017157

Zhenhui Li, MD

Role: primary

+86 13698736132

Weidong Han, MD, PhD

Role: primary

+86 13819124503

Other Identifiers

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MR-AI-pCR 2020

Identifier Type: -

Identifier Source: org_study_id

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