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Drug adherence and clinical outcomes for patients under pharmacological therapy for lower urinary tract symptoms related to benign prostatic hyperplasia: population-based cohort study.

Abstract：

BACKGROUND:Little is known about drug adherence in men treated for lower urinary tract symptoms (LUTS). Benign prostatic hyperplasia (BPH) is one of the causes of LUTS. OBJECTIVE:To examine adherence to pharmacological therapy and its clinical value in men with LUTS. DESIGN, SETTING, AND PARTICIPANTS:Population-based cohort study using an administrative prescription database and hospital discharge codes for 1.5 million men aged ≥40 yr treated with alpha blockers (ABs) and 5-alpha reductase inhibitors (5ARIs) alone or in combination (CT). INTERVENTIONS:Therapy with ABs and/or 5ARIs. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS:The 1-yr and long-term adherence; hospitalization rates for BPH and BPH surgery. Multivariate Cox proportional hazards regression model, propensity score matching, and sensitivity analyses. RESULTS AND LIMITATIONS:The 1-yr adherence was 29% in patients exposed to at least 6-mo therapy. Patients on CT had a higher discontinuation rate in the first 2 yr compared to those on monotherapy (p<0.0001). Overall hospitalization rates for BPH and BPH surgery were 9.04 and 12.6 per 1000 patient-years, respectively. A lower risk of hospitalization was observed for 5ARI compared to AB therapy (hazard ratio [HR] 0.46 and 0.23; p<0.0001). CT was associated with a reduced risk of hospitalization for BPH surgery (HR 0.94; p<0.0001) compared to AB. Discontinuation of drug treatment was an independent risk factor for hospitalization for BPH and BPH surgery (HR 1.65 and 2.80; p<0.0001) regardless of therapeutic group. Limitations include the paucity of clinical measures and the absence of patient-reported outcomes. CONCLUSIONS:Adherence to pharmacological therapy for BPH is low and could affect clinical outcomes. Long-term 5ARI and CT use was associated with an independent reduced risk of hospitalization for BPH surgery. Our findings suggest the need for new strategies to increase patient adherence to prescribed treatment and more appropriate prescribing by physicians. PATIENT SUMMARY:Our research shows that adherence to prescribed pharmacological therapy is crucial in the management of patients suffering from lower urinary tract symptoms. Moreover, pharmacological therapy can prevent disease progression.

journal_name

Eur Urol

journal_title

European urology

authors

Cindolo L,Pirozzi L,Fanizza C,Romero M,Tubaro A,Autorino R,De Nunzio C,Schips L

doi

10.1016/j.eururo.2014.11.006

subject

Has Abstract

pub_date

2015-09-01 00:00:00

pages

418-25

issue

eissn

0302-2838

issn

1873-7560

pii

S0302-2838(14)01180-4

journal_volume

pub_type

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Drug adherence and clinical outcomes for patients under pharmacological therapy for lower urinary tract symptoms related to benign prostatic hyperplasia: population-based cohort study.