alexa A meta-analysis on the efficacy and tolerability of alpha1-adrenoceptor antagonists in patients with lower urinary tract symptoms suggestive of benign prostatic obstruction.
Surgery

Surgery

Medical & Surgical Urology

Author(s): Djavan B, Marberger M

Abstract Share this page

Abstract OBJECTIVE: To assess whether the alpha1-adrenoceptor antagonists currently available for the treatment of lower urinary tract symptoms (LUTS) suggestive of benign prostatic obstruction (BPO) (alfuzosin, terazosin, doxazosin and tamsulosin) can be distinguished with regard to clinical efficacy and/or tolerability. METHODS: Up-to-date analysis of clinical placebo-controlled or direct comparative studies with alpha1-adrenoceptor antagonists in patients with LUTS suggestive of BPO derived from a MEDLINE search in October 1998. All retrieved studies were analyzed with regard to efficacy and tolerability. Efficacy was evaluated by the percentage improvement in total symptom score and Qmax (mean end of study value relative to mean baseline value). Tolerability was evaluated by means of study withdrawal rate because of adverse events and the incidence of vasodilatatory adverse events (e.g. dizziness and orthostatic hypotension). RESULTS: Indirect comparison of data derived from the placebo-controlled studies involving 6,333 patients and the data derived from the direct comparative studies involving 507 patients demonstrate that all alpha1-adrenoceptor antagonists (alfuzosin, terazosin, doxazosin and tamsulosin) produce comparable improvements in LUTS and urinary flow. Total symptom score is in general improved by 30-40\% and Qmax by 16-25\%. The difference between currently available alpha1-adrenoceptor antagonists is related to their side effect profile. Alfuzosin (especially the sustained release formulation) and tamsulosin (modified release formulation 0.4 mg) seem to be better tolerated than terazosin and doxazosin. The percentage of patients that withdrew due to bothersome side effects with alfuzosin and tamsulosin 0.4 mg was comparable to that with placebo (about 4-10\%) whereas in the terazosin and doxazosin studies an additional 4-10\% of patients dropped out because they did not tolerate the therapy. Tamsulosin has less effect on blood pressure than alfuzosin (especially in elderly patients) and causes less symptomatic orthostatic hypotension during orthostatic stress testing than terazosin. CONCLUSIONS: All alpha1-adrenoceptor antagonists seem to have similar efficacy in improving symptoms and flow. The difference between alpha1-adrenoceptor antagonists is related to their side effect profile. Alfuzosin and tamsulosin appear to be better tolerated than doxazosin, terazosin and prazosin. This article was published in Eur Urol and referenced in Medical & Surgical Urology

Relevant Expert PPTs

Recommended Conferences

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords