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Uroselective Alpha-1-Antagonist to Reduce the Incidence and Duration of Postoperative Urinary Retention Following Spine Surgery

The Use of an Uroselective Alpha-1-antagonist to Reduce the Incidence and Duration of Postoperative Urinary Retention Following Spine Surgery

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07174349
Enrollment
20
Registered
2025-09-15
Start date
2026-10-01
Completion date
2028-12-31
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Urinary Retention Postoperative

Brief summary

The purpose of this research is to see if the use of tamsulosin can decrease both the incidence and duration of urinary retention, as well as hospital length of stay following spine surgery.

Detailed description

Postoperative urinary retention is a frequent complication of spinal surgeries and impacts a large portion of this population which results in increased morbidity as a result of increased number of catheterizations, urinary tract infections and prolonged hospital stays. With the addition of Tamsulosin, we would anticipate a reduction in the incidence and duration of postoperative urinary retention and therefore a reduction in morbidity related to treatment of urinary retention as well as shortened hospital stays.

Interventions

DRUGUroselective alpha-1-adrenergic receptor antagonist

Subjects will receive Tamsulosin (0.4 mg daily) beginning 5 days prior to surgery and for the duration of the postoperative hospital stay (approximately 8-12 days)

OTHERPlacebo

Subjects will receive placebo beginning 5 days prior to surgery and for the duration of the postoperative hospital stay (approximately 8-12 days)

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Caregiver)

Eligibility

Sex/Gender
ALL
Age
35 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Cervical Laminectomy * Cervical Posterior Fusion * Cervical Anterior/Posterior Fusion * Lumbar Laminectomy * Lumbar Posterolateral Fusion * Lumbar Interbody Fusion

Exclusion criteria

* Cervical Anterior Discectomy and Fusion * Cervical Anterior Corpectomy * Cervical Posterior Discectomy * Cervical Foraminotomy * Lumbar Discectomy (METRx or Open) * Lumbar Foraminotomy * Lumbar Anterior Fusion * Myelopathy with bladder dysfunction * Patients currently taking an alpha-antagonist o The following drugs are alpha antagonists: alfuzosin, doxazosin, prazosin, terazosin, tamsulosin, and phenoxybenzamine. * Patients with history of allergy or sensitivity to tamsulosin or other alpha-antagonist * History of prostatectomy or urologic surgery involving the bladder or urethra * Severe liver disease or end-stage renal disease * Patients taking strong inhibitors of CYP3A4 o The following drugs are strong inhibitors of CYP3A4: ketoconazole, itraconazole, clarithromycin, ritonavir, indinavir/ritonavir, lopinavir/ritonavir, and conivaptan. * Mental disability or prisoner * Pregnancy (for anesthesia purposes)

Design outcomes

Primary

MeasureTime frameDescription
Number of incidences of POUR (Postoperative urinary retention)Post-operatively through end of hospital stay, approximately 8-12 daysTotal number of incidences of POUR (Postoperative urinary retention). POUR is defined as any of the following: estimated post-void residual (PVR) volume of urine greater than or equal to 300 mL; estimated retention urine volume of greater than or equal to 500 mL in patients unable to void; or patients experiencing discomfort or distension and unable to void with lesser residual urine volume than 500 ml.

Secondary

MeasureTime frameDescription
Duration of POUR (Postoperative urinary retention)Post-operatively through end of hospital stay, approximately 8-12 daysDuration subjects experience postoperative urinary retention, reported in days
Number of intermittent catheterizations in those with urinary retentionPost-operatively through end of hospital stay, approximately 8-12 daysTotal number of catheterizations performed in subjects who experience urinary retention
Incidence of UTI (urinary tract infection)Post-operatively through end of hospital stay, approximately 8-12 daysNumber of subjects to be diagnosed with a UTI (urinary tract infection) post-operatively
Duration of hospital stayPost-operatively through end of hospital stay, approximately 8-12 daysTotal length of time subjects remain inpatient post-procedure, reported in days.

Countries

United States

Contacts

CONTACTNeurologic Surgery Research Team
507-422-5673
PRINCIPAL_INVESTIGATORMichelle Clarke, MD, PhD

Mayo Clinic

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 30, 2026