NCT06591572

Brief Summary

This is a phase 2a clinical trial based on the IDEAL framework to evaluate the safety, feasibility and clinical efficacy of single-port robotic transanal total mesorectal excision (SPr-taTME )surgery. For safety, intraoperative adverse events and 30-day morbidity. For efficacy, successful completion of predefined procedural steps without conversion. The transanal surgical platform consists of a single-port robotic system, while the transabdominal approach can be performed laparoscopically or with single-port robotic assistance.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2024

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

August 11, 2024

Completed
1 month until next milestone

First Posted

Study publicly available on registry

September 19, 2024

Completed
1 month until next milestone

Study Start

First participant enrolled

October 24, 2024

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2025

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2025

Completed
Last Updated

September 17, 2025

Status Verified

September 1, 2024

Enrollment Period

5 months

First QC Date

August 11, 2024

Last Update Submit

September 15, 2025

Conditions

Keywords

Single-port robotictransanal total mesorectal excisionrectal cancer

Outcome Measures

Primary Outcomes (2)

  • Intraoperative adverse events and 30-day postoperative complications

    Intraoperative adverse events (device and/or procedure-related). Events were recorded as Preferred Term and classified under System Organ Class as per MedDRA Common Terminology Criteria for Adverse Events (CTCAE) coding guidelines (https://evs.nci.nih.gov/ftp1/CTCAE/About.html). Postoperative complications will refer to any medical occurrence directly attributed to the surgical procedure within the first 30 days.

    Intraoperative and postoperative 30 days

  • Conversion rate

    Conversion to open or laparotomy surgery due to intraoperative complications , technical difficulties, or inability to successfully complete predefined procedural steps .

    Intraoperative

Secondary Outcomes (2)

  • Quality of specimen (as proposed and published by Quirke et al)

    7 days after surgery

  • Operative time

    Date of surgery (Day 1)

Study Arms (1)

Single-port robotic transanal total mesorectal excision

EXPERIMENTAL

Single-port robotic transanal total mesorectal excision

Procedure: Single-port robotic transanal total mesorectal excision

Interventions

Rectal resection by transanal TME with single-port robotic surgery

Single-port robotic transanal total mesorectal excision

Eligibility Criteria

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

You may qualify if:

  • (1) Mid or low rectal cancer, 0-10 cm from the anal verge (MRI definition); (2) Histological biopsy showing adenocarcinoma; (3) Stage I-III (MRI and abdominal CT), including the downstaged after neoadjuvant therapy; (4) Intention for primary anastomosis; (5) Obtain the informed consent of the patient and his family; (6) Suitable for robotic or laparoscopic surgery. (7) Over 18 years old.

You may not qualify if:

  • T3 tumour with margins less than 1 mm to the mesorectal fascia or T4 tumour, determined by MRI-scan (staged after (chemo)radiotherapy if applicable) ;
  • The anal sphincter complex or levator anal muscle is involved;
  • Previous prostate or rectal surgery (excluding local excision) ;
  • Emergency surgery was performed due to complications of a rectal tumor;
  • Malignancy other than adenocarcinoma at histological examination;
  • Pregnancy;
  • Signs of acute intestinal obstruction;
  • Multiple colorectal tumours;
  • Familial Adenomatosis Polyposis Coli (FAP), Hereditary Non-Polyposis Colorectal Cancer (HNPCC), active Crohn's disease or active ulcerative colitis;
  • Planned synchronous abdominal organ resections;
  • Other malignancies in medical history, except adequately treated basocellular carcinoma of the skin or in situ carcinoma of the cervix uteri;
  • Absolute contraindication to general anaesthesia or prolonged pneumoperitoneum, as severe cardiovascular or respiratory disease (ASA class \> III)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Huichao Zheng

Chongqing, 400042, China

Location

MeSH Terms

Conditions

Rectal Neoplasms

Condition Hierarchy (Ancestors)

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

Study Officials

  • Fan Li, MD

    Daping Hospital and the Research Institute of Surgery of the Third Military Medical University

    STUDY CHAIR

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 11, 2024

First Posted

September 19, 2024

Study Start

October 24, 2024

Primary Completion

April 1, 2025

Study Completion

September 1, 2025

Last Updated

September 17, 2025

Record last verified: 2024-09

Data Sharing

IPD Sharing
Will not share

Locations