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Medical Expulsive Therapy of Single Distal Ureteral Stones

NCT00831701 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2010-05-25

Study results available
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Summary

Current therapeutic options for ureteral stones include active intervention as well as conservative "watch and wait" approaches. Endoscopic treatment of ureteral stones has a high success rate and reliably results in immediate stone removal However, surgical as well as anaesthetic risks are not negligible and serious complications are possible. For many patients, a conservative treatment is an appealing option. Watchful waiting, however, not always results in stone clearance and may be associated with recurrent renal colics.

The therapeutic potential of alpha-blockers for ureteral stone disease has been investigated prompted by the detection of alpha-receptors in ureteral smooth muscle cells. Blocking of such receptors, which are predominantly located in the distal part of the ureter results in relaxation of the ureteral wall and modulation of peristaltic activity. This mechanism has been proposed to facilitate stone passage for ureteral calculi.

Numerous clinical trials have revealed a significant improvement of the stone expulsion rate using the alpha-blocker tamsulosin. Most of these studies were randomised but none were performed in a double-blind and placebo-controlled fashion. Therefore, the objective of this trial was to evaluate the efficacy of medical expulsive therapy with tamsulosin in a randomised, double-blind, placebo-controlled setting.

Conditions

  • Ureteral Calculi

Interventions

DRUG

Tamsulosin

0.4 mg Tamsulosin once daily for 21 days

DRUG

Placebo

One placebo pill per day for 21 days or until stone expulsion

Sponsors & Collaborators

  • University of Zurich

    lead OTHER

Principal Investigators

  • 01 Studienregister MasterAdmins · UniversitaetsSpital Zuerich

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2006-09-30
Primary Completion
2008-11-30
Completion
2008-11-30

Countries

  • Switzerland

Study Locations

More Related Trials

Entities

Drugs

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00831701 on ClinicalTrials.gov