Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Tadalafil Shows Promise for Relief of Lower Urinary Tract Symptoms Associated with Benign Prostatic Hyperplasia

20.08.2008
Men with signs of benign prostatic hyperplasia (BPH) can be helped with a daily dose of erectile dysfunction drug tadalafil (Cialis®) to relieve associated lower urinary tract symptoms (LUTS), according to a new study published in the October 2008 issue of The Journal of Urology.

Researchers from the University of Texas Southwestern Medical Center at Dallas, Northwestern University and Lilly Research Laboratories report on a randomized, double-blind, placebo-controlled study of over 1000 men in ten countries.

Claus G. Roehrborn, MD, Professor of Urology, University of Texas Southwestern Medical Center, states, “Since reports of erectile dysfunction (ED) incidence, pathophysiology and treatment have shown a possible link between BPH LUTS and ED. PDE5 inhibitors like tadalafil (Cialis®) have received increased attention for treating BPH LUTS, although they are currently only approved for ED. The half-life of tadalafil is 17.5 hours, making it suitable as once daily therapy. Although the precise mechanism of action by which PDE5 inhibitors may alleviate LUTS is not completely understood, several putative mechanisms are currently under investigation.”

Men with signs of BPH may experience LUTS, such as urinary frequency, urgency, intermittence, nocturia, straining, incomplete emptying or a weak urinary stream. LUTS increase with age with an overall prevalence of greater than 50% in men 50 years or older. Drugs currently used to treat these symptoms can produce unwanted side effects, including dizziness, low blood pressure and sexual dysfunction.

Participants in the tadalafil study were required to have at least a 6-month history of LUTS secondary to BPH. Subjects with a high PSA (more than 10 ng/ml) were excluded, as were subjects with other complicating conditions or conflicting drug treatments. Anyone who had undergone treatment for erectile dysfunction or other BPH treatments underwent a 4-week treatment-free screening period. All participants then received placebo for 4 weeks prior to randomization. The 1056 subjects were then divided randomly into 5 groups that received a placebo, or doses of 2.5, 5.0, 10.0 or 20.0 mg/day of tadalafil.

Using the International Prostate Symptom Score (I-PSS), a validated seven-item questionnaire about LUTS occurring within the last month, the researchers found that all doses of tadalafil were superior to placebo for relieving LUTS, with statistically significant effects at 4, 8 and 12 weeks. The treatments decreased I-PSS scores from 3.9 to 5.2 points in the different dosage groups, a clinically meaningful improvement according to the guidelines of the American Urological Association. Of the doses studied, 5 mg per day improved the I-PSS by 4.9 points and provided the best risk-benefit profile.

The article is “Tadalafil Administered Once Daily for Lower Urinary Tract Symptoms Secondary to Benign Prostatic Hyperplasia: A Dose Finding Study” by Claus G. Roehrborn, Kevin T. McVary, Albert Elion-Mboussa and Lars Viktrup. It appears in The Journal of Urology, Volume 180, Issue 4 (October 2008) published by Elsevier.

Linda Gruner | alfa
Further information:
http://www.elsevier.com

More articles from Health and Medicine:

nachricht New malaria analysis method reveals disease severity in minutes
14.08.2017 | University of British Columbia

nachricht New type of blood cells work as indicators of autoimmunity
14.08.2017 | Instituto de Medicina Molecular

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

Gold shines through properties of nano biosensors

17.08.2017 | Physics and Astronomy

Greenland ice flow likely to speed up: New data assert glaciers move over sediment, which gets more slippery as it gets wetter

17.08.2017 | Earth Sciences

Mars 2020 mission to use smart methods to seek signs of past life

17.08.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>