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Does practice make perfect? a study probes how a Surgeon's learning curve impacts cancer surgery success

NCT ID NCT07736131

Knowledge-focused Sponsor: Ruijin Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 30, 2026 · Last updated Jul 31, 2026 · Updated 1 time

Summary

This study looks at how a surgeon's growing experience with single-incision laparoscopic surgery—a minimally invasive technique using a single small cut—affects short- and long-term results for people with rectal or sigmoid colon cancer. By analyzing past cases from one surgical team, researchers aim to map the learning curve and see whether patients treated earlier or later in that curve have different survival outcomes. The goal is to understand how much practice is needed to achieve the best results.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
single-incision laparoscopic surgery
What this could lead to
If the learning curve is well-defined, it could help set training standards and improve surgical outcomes for patients undergoing this minimally invasive procedure.
What could go wrong
This is an observational study, not a controlled trial, so it cannot prove cause and effect. Results may vary across different surgical teams and patient populations.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

280 people

The number who actually took part.

Started

Dec 2013

Finished

Jun 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Patients who underwent single-incision radical resection of rectal or sigmoid colon tumors in the General Surgery Department of Ruijin Hospital from December 2013 to June 2021

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * 1\) Patients with indications for single-port laparoscopic surgery; 2) A single tumor was found during colonoscopy; 3) Preoperative biopsy confirmed by pathology as cancer or high-grade intraepithelial neoplasia; 4) The lesion is located in the lower segment of the sigmoid colon (20 cm to 25 cm from the proximal rectum), the junction of the sigmoid colon (16 cm to 20 cm from the proximal rectum), or the upper segment of the rectum (12 cm to 16 cm from the proximal rectum) \[31-33\]; 5) Intestinal anastomosis in vivo was performed through a tubular stapler. Exclusion Criteria: * 1\) Has undergone colorectal resection; 2) Preoperative CT assessment shows that the tumor stage is stage IV (as defined in the 8th edition of the American Joint Committee on Cancer (AJCC) "Cancer Staging Manual"); 3) Intestinal anastomosis was performed in vitro or not; 4) Received neoadjuvant therapy; 5) ASA classification is III-IV (in accordance with the ASA standards of the American Society of Anesthesiologists); 6) Life expectancy is less than one year; 7) There is a history of cancers other than thyroid cancer.

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Conditions

The condition(s) this trial relates to.

colon carcinoma colonic neoplasm rectal cancer rectal neoplasm sigmoid colon cancer

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Colon cancer Rectal cancer Single port laparoscopy

More trials for these conditions

Other studies related to the condition(s) this trial covers.