An observational study in Urologic Injuries, Disorder of Urinary Stent and Kidney Calculi, sponsored by University of British Columbia. Status unknown at 1 site in Canada. Open to participants aged 19 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-05-17.
Sponsored by University of British Columbia · Observational
The aim of this study is to identify the root cause for the significant discolouration of Boston Scientific Percuflex based stents.
The aim of this study is to identify the root cause for the significant discolouration of Boston Scientific Percuflex based stents observed in some patients, particularly those from Japan. We will also test and compare them to stents from Canadian patients. Furthermore, we will determine whether the discolouration promotes bacterial adhesion and/or encrustation of the stent.
509 studies on the registry are indexed under Kidney Calculi; 146 are open to participants now.
This study's planned enrollment of 70 is below the median of 160 across 96 observational studies indexed under Kidney Calculi.
Browse Kidney Calculi studies →University of British Columbia is the lead sponsor of 1,339 studies on the registry; 259 are open to participants now.
Of its 6 completed or terminated interventional studies of FDA-regulated products, 1 (17%) have results posted.
Counted across the registry records on this site, refreshed daily.
Patient with indwelling ureteral stent due to urologic indication.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Patients with existing indwelling ureteral stent, no additional treatment
stent encrustation
Conditioning film components and encrustation
Time frame: at stent removal
characterize the components that discolour the Percuflex material
Time frame: bench top testing of stents
Bacterial Adhesion, Colonization, and Biofilm formation
Stent pieces from the stent that has been in the patient will be exposed to bacteria and artificial urine to mimic ureter environment in order to find information on: bacterial adhesion, colonization and biofilm formation
Time frame: at 4, 24, and 48 hours post stent removal
The record gives a start of Dec 2013, a primary completion of Sep 2023 and a completion of Sep 2023. It does not say whether these dates are actual or estimated.
How these figures are worked out, and which studies are left out of them.
This study is status unknown, as verified in May 2022. You cannot join it, but the record below documents what was studied.
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University of British Columbia →