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- W1970781058 abstract "Botulinum toxin treatment has been investigated as a minimally invasive alternative to oral medications in men with lower urinary tract symptoms (LUTS) suggestive of benign prostatic hyperplasia (LUTS/BPH).To explore the efficacy of onabotulinumtoxinA 100 U, 200 U, and 300 U versus placebo in men with LUTS/BPH in a phase 2 dose-ranging study.A multicenter double-blind randomized, placebo-controlled 72-wk study enrolled men ≥ 50 yr of age with LUTS/BPH, International Prostate Symptom Score (IPSS) ≥ 12, total prostate volume (TPV) 30-100ml, and maximum flow rate (Q(max)) 5-15 ml/s.Single transperineal (n=63) or transrectal (n=311) administration of placebo (n=94) or onabotulinumtoxinA 100 U (n=95), 200 U (n=94), or 300 U (n=97) into the prostate transition zone.The primary efficacy end point was a change from baseline in IPSS at week 12. Secondary end points were Q(max), TPV, and transition zone volume (TZV). Analysis of covariance and the Cochran-Mantel-Haenszel method assessed the efficacy and proportion of IPSS responders. Adverse events (AEs) were assessed.Significant improvements from baseline in IPSS, Q(max), TPV, and TZV were observed for all groups, including placebo, at week 12 (p<0.001), with no significant differences between onabotulinumtoxinA and placebo. However, in an exploratory post hoc analysis, a significant reduction in IPSS versus placebo was observed with onabotulinumtoxinA 200 U in prior α-blocker users (n=180) at week 12. AEs were comparable across all groups.Reductions in LUTS/BPH symptoms were seen in all groups, including placebo, with no significant between-group differences owing to a large placebo effect from the injectable therapy. The findings from the post hoc analysis in men previously treated with α-blockers will be further explored in an appropriately designed study.http://www.Clinical Trials.gov; NCT00284518." @default.
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- W1970781058 date "2013-03-01" @default.
- W1970781058 modified "2023-10-18" @default.
- W1970781058 title "A Randomized Double-blind Placebo-controlled Phase 2 Dose-ranging Study of OnabotulinumtoxinA in Men with Benign Prostatic Hyperplasia" @default.
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- W1970781058 doi "https://doi.org/10.1016/j.eururo.2012.10.005" @default.
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