LIRRH Trial for the Right-sided Colon Cancer

NCT ID: NCT07207317

Last Updated: 2025-10-03

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

Clinical Phase

NA

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-05-01

Study Completion Date

2028-04-28

Brief Summary

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The aim of this clinical trial is to compare the short- and long-term outcomes of laparoscopic ileocecal reconstruction right hemicolectomy (LIRRH) with those of traditional laparoscopic right hemicolectomy (TRH) for ascending and proximal transverse colon cancer.

Detailed Description

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This is a prospective, single-center, open-label, randomized controlled clinical trial. Eligible patients will be randomly assigned (1:1) to undergo either LIRRH or TRH and will receive the corresponding surgical procedure.

Primary endpoint: 3-year disease-free survival (DFS).

Secondary endpoints:

1. Complications within 90 days postoperatively;
2. Pathology-related indicators, including positive margin rate, number of harvested lymph nodes, and lymph-node metastasis rate;
3. Assessment of postoperative intestinal microbiota changes;
4. 5-year overall survival (OS).

Conditions

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Ascending Colon Cancer Proximal Transverse Colon Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Participants are randomized 1:1 to either the LIRRH arm or the TRH arm and followed in parallel until completion of the trial; no crossover or factorial design is employed.
Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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LIRRH group

Participants will undergo laparoscopic ileocecal-reconstruction right hemicolectomy (LIRRH), in which the ileocecal junction is reconstructed; procedure follows the same oncologic resection margins as standard laparoscopic surgery.

Group Type EXPERIMENTAL

Laparoscopic ileocecal-reconstruction right hemicolectomy (LIRRH)

Intervention Type PROCEDURE

The ileocolic vessels are divided at their roots, and lymph nodes of stations 203, 202, and 201 are dissected. The right colic and middle colic vessels are also divided at their roots, and the surrounding lymphatic and adipose tissue (stations 211/212/213 and 221/222/223) is cleared. The transverse colon is transected 10 cm distal to the tumor, and the ileum is divided 10 cm proximal to the ileocecal region. After tailoring the ileal mesentery, an end-to-end ileo-transverse colonic anastomosis is performed. Using a seromuscular suture, the ileum and its tailored mesentery are invaginated into the wall of the transverse colon 2 cm proximal to the anastomosis, thereby reconstructing the ileocecal valve complex.

TRH group

Participants will undergo traditional laparoscopic right hemicolectomy (TRH) with standard en-bloc mesenteric resection and ileocolic anastomosis

Group Type ACTIVE_COMPARATOR

traditional laparoscopic right hemicolectomy (TRH)

Intervention Type PROCEDURE

The ileocolic vessels are divided at their roots, and lymph nodes of stations 203, 202, and 201 are dissected. The right colic and middle colic vessels are likewise divided at their roots, and the surrounding lymphatic and adipose tissue (stations 211/212/213 and 221/222/223) is cleared. The transverse colon is transected 10 cm distal to the tumor, and the ileum is divided 10 cm proximal to the ileocecal junction. An end-to-side or side-to-side ileo-transverse colonic anastomosis is then performed.

Interventions

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Laparoscopic ileocecal-reconstruction right hemicolectomy (LIRRH)

The ileocolic vessels are divided at their roots, and lymph nodes of stations 203, 202, and 201 are dissected. The right colic and middle colic vessels are also divided at their roots, and the surrounding lymphatic and adipose tissue (stations 211/212/213 and 221/222/223) is cleared. The transverse colon is transected 10 cm distal to the tumor, and the ileum is divided 10 cm proximal to the ileocecal region. After tailoring the ileal mesentery, an end-to-end ileo-transverse colonic anastomosis is performed. Using a seromuscular suture, the ileum and its tailored mesentery are invaginated into the wall of the transverse colon 2 cm proximal to the anastomosis, thereby reconstructing the ileocecal valve complex.

Intervention Type PROCEDURE

traditional laparoscopic right hemicolectomy (TRH)

The ileocolic vessels are divided at their roots, and lymph nodes of stations 203, 202, and 201 are dissected. The right colic and middle colic vessels are likewise divided at their roots, and the surrounding lymphatic and adipose tissue (stations 211/212/213 and 221/222/223) is cleared. The transverse colon is transected 10 cm distal to the tumor, and the ileum is divided 10 cm proximal to the ileocecal junction. An end-to-side or side-to-side ileo-transverse colonic anastomosis is then performed.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Age 18-75 years
* ASA physical status ≤ III
* Endoscopy and biopsy-proven colon adenocarcinoma
* Contrast-enhanced abdominal CT showing primary tumor located in the ascending colon or proximal transverse colon (proximal one-third)
* Pre-operative clinical stage: TanyNanyM0
* Able to understand the study protocol, willing to participate, and provide written informed consent

Exclusion Criteria

* History of hypertensive crisis or hypertensive encephalopathy.
* Severe cardiopulmonary insufficiency or any other contraindication to surgery.
* Uncorrectable electrolyte disturbances (e.g., potassium, calcium, magnesium).
* Evidence of significant bleeding diathesis or high hemorrhagic risk:
* Prior intracranial or intraspinal hemorrhage.
* Tumor invading major vessels with obvious bleeding risk.
* Thrombotic or embolic event within 6 months before study treatment, or significant vascular disease (e.g., surgical-repair aortic aneurysm).
* Clinically relevant hemoptysis or tumor bleeding of any cause within 1 month before screening.
* Therapeutic-dose anticoagulation within 2 weeks before study treatment (except low-molecular-weight heparin).
* Antiplatelet therapy within 10 days before study treatment (e.g., aspirin \> 325 mg/day, clopidogrel \> 75 mg/day, dipyridamole, ticlopidine, cilostazol).
* Active tuberculosis.
* Any active autoimmune disease or history of autoimmune disease with expected recurrence (including but not limited to SLE, RA, autoimmune hepatitis, uveitis, enteritis, hepatitis, hypophysitis, vasculitis, nephritis, hyper- or hypothyroidism, asthma requiring bronchodilators).
* Pre-operative evidence of synchronous multiple primary colorectal cancers or other conditions requiring additional bowel resection.
* Pre-operative imaging or intra-operative findings showing:
* Tumor infiltration into adjacent organs requiring multi-visceral resection;
* Distant metastasis;
* Unresectable (unable to achieve R0) disease.
* Other malignancies within the past 5 years, or familial adenomatous polyposis; except cured carcinoma in situ of the cervix, basal-cell carcinoma, papillary thyroid carcinoma, or cutaneous squamous-cell carcinoma.
* Intestinal obstruction, perforation, or bleeding requiring emergency surgery.
* Patient unsuitable or unable to tolerate laparoscopic surgery.
* Pregnant or lactating women.
* History of psychiatric disorders precluding compliance.
* Prior neoadjuvant therapy.
* Multidisciplinary team (MDT) decision that the patient is not appropriate for the study.
* Patient unable to understand the study conditions/objectives and refuses to give informed consent.
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Chaoxi Zhou

OTHER

Sponsor Role lead

Responsible Party

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Chaoxi Zhou

Associate Chief Physician, Department of General Surgery

Responsibility Role SPONSOR_INVESTIGATOR

Locations

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The Fourth Hospital of Hebei Medical University

Shijiazhuang, Hebei, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Chaoxi Zhou, MD

Role: CONTACT

+8615931121563

Meng Zesong

Role: CONTACT

+8615633082765

Facility Contacts

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Chaoxi Zhou, MD, PhD

Role: primary

+8615931121563

Meng Zesong, MS

Role: backup

Other Identifiers

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2025KS060

Identifier Type: OTHER

Identifier Source: secondary_id

2025KS060

Identifier Type: -

Identifier Source: org_study_id

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