Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 30 to 100

Using preoperative laxatives to improve recovery after robotic urologic surgery

Official title: The Use of Preoperative Osmotic Laxatives to Improve Recovery of Bowel Function After Robotic-assisted Urologic Surgery

Run by University of Iowa · NCT05805436 · Data updated 2026-11-12

This study is testing if taking a laxative before robotic surgery for prostate or kidney cancer can help patients recover better and feel less discomfort afterward.

Quick facts

PhasePhase 4
Study typeInterventional
Ages30 Years to 100 Years
SexAll
Enrollment240 (estimated)
SponsorUniversity of Iowa
Academic / other
Drugs / interventionsradiation
Locations1 site (Iowa City, Iowa)
StatusRecruiting
StartedJune 1, 2023
Main results expectedMarch 2, 2026
Study endsMarch 3, 2026
Registry record updatedMay 30, 2025
Trial IDNCT05805436 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are patients aged 30 years or older scheduled for robotic-assisted laparoscopic radical prostatectomy or nephrectomy.

Probably not a fit

Patients under 30, those with contraindications to laxatives, or those with specific gastrointestinal conditions 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 study investigates the effects of a preoperative osmotic laxative, polyethylene glycol (PEG), on bowel recovery and gastrointestinal symptoms in patients undergoing robotic-assisted laparoscopic surgeries for prostate and kidney cancer. Participants will be randomly assigned to receive PEG for three days before surgery or to a control group without the laxative. The goal is to determine if preoperative laxatives can enhance postoperative recovery and reduce issues like nausea and abdominal distension. This approach aims to improve patient outcomes following minimally invasive urologic procedures.

Why it matters

Potential benefit: If successful, this study could lead to improved recovery times and reduced gastrointestinal discomfort for patients undergoing robotic urologic surgeries.

How similar studies have gone: While the use of preoperative laxatives is common, this specific approach has not been extensively tested in the context of robotic urologic surgery, making it a novel investigation.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion criteria:

-Patients 30 years or older undergoing robotic-assisted laparoscopic radical prostatectomy, transperitoneal radical nephrectomy, or transperitoneal partial nephrectomy

Exclusion criteria:

* Patients under 30 years old
* Patients with a contraindication to receiving polyethylene glycol or other forms of laxatives
* People who regularly take Miralax
* Patients undergoing retroperitoneal radical or partial nephrectomy
* Patients with severe ulcerative colitis or Crohn's disease
* Patients with intestinal diversions (colostomy, ileostomy)
* Patients with prior abdominal or pelvic radiation
* Patients who will not follow up with UIHC postoperatively
* Patients who are incarcerated

Where it's running

  • University of Iowa Hospitals & Clinics
    Iowa City, Iowa, United States
    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.