The Impact of Ureteral Stents on Peristalsis (NCT01739738) | Clinical Trial Compass
WithdrawnNot Applicable
The Impact of Ureteral Stents on Peristalsis
Stopped: Study did not start
Canada0Started 2012-12
Plain-language summary
The purpose of the study is to investigate the impact of ureteral stents on the functioning of ureteral peristalsis (normal contractions in the ureteral organ muscle).
Who can participate
Age range
19 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. stone disease
. localized tumor disease
. hydronephrosis of unknown ethiology
. patients who receive a prophylactic stent before a planned operation.
Exclusion criteria
. Patients being septic and in a life-threatening condition before or after stent-insertion
. patients with tumors in a progressive state that affect the retroperitoneum (contralateral ureter might be affected and can not serve as a control for the stented side)
. patients with Morbus Ormond (same reason as above)
. patients requiring ureteral stents bilaterally (same reason as above)
. long-term stented patients will be excluded as we are interested in evaluating the onset of changes in peristalsis rate which are expected to be most significant in an acute setting.
. patients with preexisting abnormalities/pathologies of the urinary tract e.g. reflux disease, megaureter or bladder dysfunctions as these will likely affect our results
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Effect of stent on ureteral peristalsis in stented ureter
Timeframe: before and after stent insertion (approximately 30 minutes)