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Establishing Predictors of Enlarged Prostate Treatment Adherence: Linking Symptom Improvement to Adherence

Establishing Predictors of Enlarged Prostate Treatment Adherence: Linking Symptom Improvement to Adherence

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01390870
Enrollment
400
Registered
2011-07-11
Start date
2009-05-31
Completion date
2010-09-30
Last updated
2017-05-17

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

Conditions

Prostatic Hyperplasia

Keywords

Enlarged prostate, 5-alpha-reductase inhibitor, alpha-blocker, adherence

Brief summary

Patient-based surveys will be conducted to evaluate the drivers of medication adherence in patients treated with either 5-alpha-reductase inhibitor (5ARI) therapy, alpha-blocker (AB) therapy, or combination therapy for enlarged prostate (EP). Adherence with EP therapy will be evaluated. The researchers believe that the majority of participants will report that they are compliant with therapy. The data source is a cross-sectional patient survey administered at one time point.

Interventions

DRUG5ARI or AB or Combination Therapy (5ARI + AB)

5ARI: Dutasteride or Finasteride; AB: Doxazosin, Silodosin, Tamsulosin, Terazosin, or Alfuzosin

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Observational model
OTHER
Time perspective
CROSS_SECTIONAL

Eligibility

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

Inclusion criteria

* Males * Aged 50 years or older * Residents of the United States * Receiving a prescription for an enlarged prostate (EP) treatment within 12 months prior to survey initiation

Exclusion criteria

* Patients with prostate cancer * no health/prescription insurance * patients receiving medication(s) for EP on a PRN basis

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Reporting Compliance With MedicationCross sectional survey administered once to each participant during a 17-month study period (May 2009 to September 2010)Compliance was calculated based on the participant's response to the following question: In general, how many times did you miss taking your prostate medication? Responses were measured on a 5-point scale. Participants who answered I never miss a dose of my medication were considered compliant. All other responses were considered non-compliant.

Participant flow

Pre-assignment details

Participants were not recruited for nor enrolled in this study. This study is a retrospective observational study. Data from medical records or insurance claims databases are anonymized and used to develop a participant cohort. All diagnoses and treatment are recorded in the course of routine medical practice.

Participants by arm

ArmCount
All Enrolled Participants
Males at least 50 years of age who were residents of the United States with one or more diagnoses of enlarged prostate and one or more filled prescription medications within the past 12 months for enlarged prostate (EP) (alpha blocker \[AB\], 5-alpha reductase inhibitor \[5-ARI\], combination therapy)
400
Total400

Baseline characteristics

CharacteristicAll Enrolled Participants
Age, Customized
at least 50 years old
400 Participants
Age, Customized
less than 50 years old
0 Participants
Race/Ethnicity, Customized
African American
2 participants
Race/Ethnicity, Customized
Caucasian
391 participants
Race/Ethnicity, Customized
Hispanic
1 participants
Race/Ethnicity, Customized
Other
6 participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
400 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
0 / 0
serious
Total, serious adverse events
0 / 0

Outcome results

Primary

Number of Participants Reporting Compliance With Medication

Compliance was calculated based on the participant's response to the following question: In general, how many times did you miss taking your prostate medication? Responses were measured on a 5-point scale. Participants who answered I never miss a dose of my medication were considered compliant. All other responses were considered non-compliant.

Time frame: Cross sectional survey administered once to each participant during a 17-month study period (May 2009 to September 2010)

Population: All enrolled participants taking 5-alpha reductase inhibitors and/or alpha blockers

ArmMeasureGroupValue (NUMBER)
All Enrolled ParticipantsNumber of Participants Reporting Compliance With MedicationCompliant239 participants
All Enrolled ParticipantsNumber of Participants Reporting Compliance With MedicationNon-Compliant161 participants

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