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Questioning Patients About Adverse Medical Events

Questioning Patients About Adverse Medical Events: A Randomized Controlled Trial

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00187616
Enrollment
214
Registered
2005-09-16
Start date
2002-04-30
Completion date
2003-04-30
Last updated
2024-01-24

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

Conditions

Benign Prostatic Hyperplasia

Keywords

adverse events, clinical trial methodology

Brief summary

This trial studies whether 3 different methods of asking patients about adverse medical events in a clinical trial affects the rate of reported side effects.

Detailed description

214 patients involved in a larger randomized controlled trial of the herb, saw palmetto, for benign prostatic hyperplasia were randomly assigned to 3 different methods of adverse event ascertainment after a 1-month placebo run-in visit. Two methods of ascertainment were open ended questions, and 1 was a checklist. Patients were blinded to group assignment, but investigators were aware (single blind). All patients had taken placebo for one month, but had been told it was a study drug (single blind).

Interventions

None listed

Sponsors

University of California, San Francisco
Lead SponsorOTHER

Study design

Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
MALE
Age
50 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male, age \> 49, American Urological Association Symptom Index \> 8 * Max urine flow rate \> 4 and \< 15

Exclusion criteria

* prior prostate cancer or surgery * use of medications that affect urination * severe concomitant illness

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026