Evidence for the efficacy and safety of tadalafil and finasteride in combination for the treatment of lower urinary tract symptoms and erectile dysfunction in men with benign prostatic hyperplasia
Abstract
Benign prostatic hyperplasia (BPH) is an age-related phenomenon associated with prostatic enlargement and bladder outlet obstruction that can cause significant lower urinary tract symptoms (LUTS). These LUTS have a negative impact on an individual's quality of life, which is why treatment of symptomatic BPH has become a major priority. Although surgical interventions exist for treating BPH, pharmacological therapies are often preferred due to their minimal invasiveness and high degree of effectiveness. The three classes of drugs approved for treating BPH include α-blockers, 5-α-reductase inhibitors (5-ARIs) and phosphodiesterase 5 (PDE-5) inhibitors. Individually, each class of drug has been studied and shown to improve symptom relief through a variety of different mechanisms. A more recent focus has been on the development of combinatorial therapies that combine classes of drugs in order to provide maximal benefit. The mTOPS and CombAT studies were the first of their kind to examine whether the combination of 5-ARIs and α-blockers was more effective than monotherapy alone. Both studies found similar results in that the combinatorial therapy was superior to monotherapy. Over the last decade other combinatorial therapies have been at the forefront of investigation. One in particular is the combination of tadalafil, a PDE-5 inhibitor, with finasteride, a 5-ARI. Studies have shown that the combination of tadalafil and finasteride is a safe, effective, and well tolerated…
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