NCT02602132.

Methods	Study design: RCT
Participants	Inclusion criteria: adult patients of both sexes, aged 18‐85 years who require IUC short‐term (1‐14 days) in the units of internal medicine at University Hospital Alcorcón Foundation. Patients who express a desire to participate in the study by signing the informed consent. Exclusion criteria: patients with permanent long‐term (≥ 15 days) urinary catheter; patients with recurrent episodes of UTI, which has submitted episodes of urinary retention in the last month, or who have urologic pathology; patients with cognitive impairments that hinder communication with the medical staff; disoriented patients in person, time and place; anatomical and physiological genito‐urinary system alterations; patients taking a drug that affects the bladder and kidney function the week prior to catheterisation; pregnant patients; patients with a known history of benign prostatic hyperplasia
Interventions	Group A: to clamp before the removal of short‐term IUC Group B: IUC is clamped before removal and unclamped when the patient expresses desire to urinate
Outcomes	Complications of IUC
Notes	This trial is currently listed as suspended. We contacted the trial author to provide further information and confirmed that this trial had been suspended due to poor recruitment.

IUC: indwelling urethral catheter; RCT: randomised controlled trial; UTI: urinary tract infection