This combination seems to be more efficacious in terms of several outcome variables in patients whose prostate volume is between 30 ml and 40 ml when treatment is maintained for > 1 yr ; when given for < 1 yr , α1-blockers alone are just as effective .
The combination of α1-blocker/5-ARI shows a slightly increased rate of adverse events .
It remains unknown whether its safety and superiority over either drug as monotherapy are sustained after > 6 yr .
The α1-blocker/muscarinic receptor antagonist ( antimuscarinic ) combination was most frequently assessed as an add-on therapy to already existing α1-blocker therapy .
Inconsistent data derive from heterogeneous study population s and different study design s. Currently , the α1-blocker/antimuscarinic combination appears to be a second-line add-on for patients with insufficient symptom relief after monotherapy .
The combination seems to be safe in men with postvoid residual < 200 ml .
The α1-blocker/phosphodiesterase type 5 inhibitor combination is a new treatment option with only preliminary reports .
CONCLUSIONS An α1-blocker/5-ARI combination is beneficial for patients whose prostate volume is between 30 ml and 40 ml when medical treatment is intended for > 1 yr .
Based on short-term follow-up studies , add-on of antimuscarinics to α1-blockers is an option when postvoid residual is < 200 ml
BACKGROUND Several drugs are approved for the treatment of lower urinary tract symptoms ( LUTS ) in men , but these are mostly used by clinicians as monotherapies .
The combination of different compounds , each of which targets a different aspect of LUTS , seems appealing .
However , only few clinical trials have evaluated the effects of combination therapies .
OBJECTIVE This systematic review analyzes the efficacy and adverse events of combination therapies for male LUTS .
The effects of combination therapy with dutasteride and tamsulosin on clinical outcomes in men with symptomatic benign prostatic hyperplasia: 4-year results from the CombAT study.
BACKGROUND Combination therapy with dutasteride and tamsulosin provides significantly greater benefit than either monotherapy for various patient-reported outcomes in men with moderate-to-severe lower urinary tract symptoms ( LUTS ) due to benign prostatic hyperplasia ( BPH ) and prostatic enlargement . OBJECTIVE To investigate whether combination therapy is more effective than either monotherapy in reducing the relative risk for acute urinary retention ( AUR ) , BPH-related surgery , and BPH clinical progression over 4 yr in men at increased risk of progression . DESIGN , SETTING , AND PARTICIPANTS The Combination of Avodart and Tamsulosin ( CombAT ) study was a 4-yr , multicenter , r and omised , double-blind , parallel-group study in 4844 men > or = 50 yr of age with a clinical diagnosis of BPH , International Prostate Symptom Score > or = 12 , prostate volume > or = 30 cm(3 ) , prostate-specific antigen 1.5 - 10 ng/ml , and maximum urinary flow rate ( Q(max ) ) > 5 and < or = 15 ml/s with minimum voided volume > or = 125 ml . INTERVENTION Oral daily tamsulosin , 0.4 mg ; dutasteride , 0.5 mg ; or a combination of both . MEASUREMENTS The 4-yr primary end point was time to first AUR or BPH-related surgery . Secondary end points included BPH clinical progression , symptoms , Q(max ) , prostate volume , safety , and tolerability . RESULTS AND LIMITATIONS Combination therapy was significantly superior to tamsulosin monotherapy but not dutasteride monotherapy at reducing the relative risk of AUR or BPH-related surgery . Combination therapy was also significantly superior to both monotherapies at reducing the relative risk of BPH clinical progression . Combination therapy provided significantly greater symptom benefit than either monotherapy at 4 yr . Safety and tolerability of combination therapy was consistent with previous experience with dutasteride and tamsulosin monotherapies , with the exception of an imbalance in the composite term of cardiac failure among the three study arms . The lack of placebo control is a study limitation . CONCLUSIONS The 4-yr CombAT data provide support for the long-term use of dutasteride and tamsulosin combination therapy in men with moderate-to-severe LUTS due to BPH and prostatic enlargement . CLINICAL TRIALS.GOV IDENTIFIER : NCT00090103 ( http://www . clinical trials.gov/ct2/show/NCT00090103 )
This combination seems to be more efficacious in terms of several outcome variables in patients whose prostate volume is between 30 ml and 40 ml when treatment is maintained for > 1 yr ; when given for < 1 yr , α1-blockers alone are just as effective .
The combination of α1-blocker/5-ARI shows a slightly increased rate of adverse events .
It remains unknown whether its safety and superiority over either drug as monotherapy are sustained after > 6 yr .
The α1-blocker/muscarinic receptor antagonist ( antimuscarinic ) combination was most frequently assessed as an add-on therapy to already existing α1-blocker therapy .
Inconsistent data derive from heterogeneous study population s and different study design s. Currently , the α1-blocker/antimuscarinic combination appears to be a second-line add-on for patients with insufficient symptom relief after monotherapy .
The combination seems to be safe in men with postvoid residual < 200 ml .
The α1-blocker/phosphodiesterase type 5 inhibitor combination is a new treatment option with only preliminary reports .
CONCLUSIONS An α1-blocker/5-ARI combination is beneficial for patients whose prostate volume is between 30 ml and 40 ml when medical treatment is intended for > 1 yr .
Based on short-term follow-up studies , add-on of antimuscarinics to α1-blockers is an option when postvoid residual is < 200 ml
BACKGROUND Several drugs are approved for the treatment of lower urinary tract symptoms ( LUTS ) in men , but these are mostly used by clinicians as monotherapies .
The combination of different compounds , each of which targets a different aspect of LUTS , seems appealing .
However , only few clinical trials have evaluated the effects of combination therapies .
OBJECTIVE This systematic review analyzes the efficacy and adverse events of combination therapies for male LUTS .