Comparison · NCT01568918-e0cbba83
Tamsulosin vs Placebo: Incidence of Postoperative Urinary Retention
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
2 sourcestrial-comparisons-2026-03-23-0.1.0
Cite this record
ConductScience Library. Tamsulosin vs Placebo: Incidence of Postoperative Urinary Retention. Trial comparisons, record NCT01568918-e0cbba83. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT01568918-e0cbba83
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Measures6
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
| Measure | Value | 95% interval, lower | 95% interval, upper | Method | Note |
|---|---|---|---|---|---|
| Risk in group 1 | 0.282 | 0.165 | 0.438 | wilson | |
| Risk in group 2 | 0.392 | 0.27 | 0.529 | wilson | |
| Risk difference, group 1 minus group 2 | -0.11 | -0.29 | 0.0876 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 0.719 | 0.392 | 1.32 | log | |
| Odds ratio, group 1 over group 2 | 0.609 | 0.249 | 1.49 | log | |
| Number needed to treat, for one fewer participant with the outcome on Tamsulosin than on Placebo | 9.08 | from the risk difference interval | the interval includes no difference |
Source ClinicalTrials.gov
Groups2
Group 2 names the comparator: placebo.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | Tamsulosin | Participants randomized to this arm will receive 0.4 mg/day tamsulosin hydrochloride from 5 days prior to the operation until hospital discharge.~Tamsulosin hydrochloride: Participants will receive 0.4 mg/day tamsulosin hydrochloride from 5 days prior to the operation until hospital discharge. | 11 | 39 | OG000 |
| Group 2 | Placebo | Participants randomized to this arm will receive a daily placebo capsule matching the active study drug from 5 days prior to the operation until hospital discharge.~Placebo: The placebo capsule matching the active study drug will be given daily from 5 days prior to the operation until hospital discharge. | 20 | 51 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- PRIMARY
- Title
- Incidence of Postoperative Urinary Retention
- Description
Post operative urinary retention (POUR) will be defined as any of the following:~1\) Estimated post-void residual (PVR) volume of urine greater than or equal to 300 mL; 2) Estimated retention urine volume of greater than or equal to 500 mL in patients unable to void; 3) Patients experiencing discomfort or distension and unable to void with lesser residual urine volume than 500 ml.
- Time frame
- participants will be followed for the duration of the hospital stay, an expected average of 5 days
- Population
Source ClinicalTrials.gov
Trial
- Title
- Use of Tamsulosin to Reduce the Incidence and Duration of Postoperative Urinary Retention Following Spine Surgery
- NCT number
- NCT01568918
- Phases
- PHASE3
- Conditions
- Postoperative Urinary Retention
- Interventions
- Tamsulosin hydrochloride, Placebo
- Lead sponsor
- Mayo Clinic
- Results first posted
- 2024-05-30
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT01568918?tab=results
Source ClinicalTrials.gov
Source
- Release
- trial-comparisons-2026-03-23-0.1.0
- Release manifest SHA-256
- f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57
- AACT copy
- 2026-03-23
- Tables read
- outcome_counts.parquet, outcome_measurements.parquet, outcomes.parquet, reported_event_totals.parquet, reported_events.parquet, result_groups.parquet, studies.parquet, ctgov_trial.parquet
Source ClinicalTrials.gov
Sources 2
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.
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