Clinical trial Recruiting at 1 site Interventional Ages 19 to 80

Transanal irrigation for sleep issues after rectal cancer surgery

Official title: The Safety and Efficacy of Transanal Irrigation in Patients With Sleep Disturbance From Low Anterior Resection Syndrome After Rectal Cancer Surgery: A Multicenter Prospective Randomized Controlled Trial (TraLARS)

Run by Seoul National University Hospital · NCT06222255 · Data updated 2026-11-12

This study tests if a treatment called transanal irrigation can help adults with sleep problems after surgery for rectal cancer feel better and improve their sleep.

Quick facts

Study typeInterventional
Ages19 Years to 80 Years
SexAll
Enrollment52 (estimated)
SponsorSeoul National University Hospital
Academic / other
Drugs / interventionsradiation
Locations1 site (Seoul, Jongro-gu)
StatusRecruiting
StartedDecember 6, 2023
Main results expectedDecember 31, 2025
Study endsDecember 31, 2028
Registry record updatedJanuary 24, 2024
Trial IDNCT06222255 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 19 and older who have undergone low or ultra-low anterior resection surgery for rectal cancer and are experiencing sleep disturbances related to LARS.

Probably not a fit

Patients who have had prior surgeries for colorectal cancer or those currently taking medication for LARS may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial investigates the safety and efficacy of transanal irrigation (TAI) in patients suffering from sleep disturbances due to Low Anterior Resection Syndrome (LARS) following rectal cancer surgery. The study focuses on adults who have undergone preservation surgery for rectal cancer and are experiencing significant changes in bowel habits, which can lead to insomnia and other sleep disorders. Participants will be evaluated based on their LARS and Insomnia Severity Index (ISI) scores to determine the impact of TAI on their symptoms. The trial aims to provide a potential therapeutic option for improving quality of life in this patient population.

Why it matters

Potential benefit: If successful, this intervention could significantly improve sleep quality and overall well-being for patients affected by LARS after rectal cancer surgery.

How similar studies have gone: While the specific approach of using transanal irrigation for sleep disturbances in this context is novel, similar interventions have shown promise in managing bowel-related symptoms in other studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Adults aged 19 years and above.
2. Patients who have undergone low or ultra-low anterior resection surgery for rectal cancer (within 15cm from the anal verge).
3. Patients at least 24 months post-surgery (excluding those with incontinence, patients who have undergone postoperative cancer treatment should have completed treatment, and patients who have undergone bowel restoration surgery should be at least 6 months post-surgery, or for patients who received long-course preoperative radiotherapy, at least 18 months post-surgery).
4. Patients evaluated with a major LARS score who also have an ISI score of 3 or 4.
5. Patients who comprehend and have the ability to participate in this clinical trial.

Exclusion Criteria:

1. Patients currently taking medication for LARS within the last month.
2. Patients with a history of prior surgery for colorectal cancer.
3. Patients with recurrent colorectal cancer.
4. Patients with concomitant metastatic colorectal cancer.
5. Patients requiring permanent colostomy.
6. Patients who have undergone postoperative cancer radiation therapy.
7. Patients with underlying conditions not controlled by internal medical treatment.
8. Patients with inflammatory bowel disease (IBD).
9. Patients with symptoms of constipation or diarrhea not controlled by medication.
10. Patients with preoperative symptoms of fecal incontinence.
11. Patients allergic to the investigational drug.
12. Patients deemed unsuitable for clinical trial participation by the principal investigator and study personnel.
13. Patients with ISI scores of 1 or 2.

Where it's running

  • Seoul National University Hospital
    Seoul, Jongro-gu, South Korea
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.