Navigation Links
Common erectile dysfunction drug not helpful for heart failure patients, study finds

SAN FRANCISCO -- A commonly used erectile dysfunction drug, sildenafil, doesn't help patients who have heart failure with preserved ejection fraction, a condition in which the heart's lower chambers are stiff and cannot relax and fill fully between beats. That is the finding of the RELAX study, presented today at the American College of Cardiology's 62nd Annual Scientific Session and simultaneously published in The Journal of the American Medical Association. The study's lead author called the results disappointing.

Sildenafil, a phosphodiesterase-5 inhibitor, had shown encouraging results in smaller studies and in animal models.

In this study, researchers looked at the drug's effect on maximum exercise ability as assessed by peak oxygen consumption and on how far people could walk in six minutes, their clinical status and their heart structure and function. They found no benefit, says lead author Margaret Redfield, M.D., heart failure specialist and researcher at Mayo Clinic in Rochester, Minn.

"It was surprising and a disappointment, and it was contradictory to our hypothesis," says

Dr. Redfield. "There are few options for help for these patients, and we hoped we would find something."

When the heart does not pump blood well, heart failure symptoms such as shortness of breath, fatigue and weakness can result.

The RELAX study is the first multicenter trial to look at the effect of therapy with sildenafil on this condition, also known as diastolic heart failure. The study was a double-blinded, placebo-controlled, randomized trial of 216 stable outpatients with heart failure (with an ejection fraction of greater than 50 percent) with reduced exercise capacity; the median age was 69. Participants were enrolled during a 3.5-year period from the nine U.S. centers including Mayo Clinic that make up the Heart Failure Clinical Research Network and 17 other centers in the United States and Canada.

"This was a very complex study and criteria for study participants were very strict," Dr. Redfield says. "But it's most likely that we didn't see the results we hoped for because this type of heart failure just does not respond to this drug."


Contact: Traci Klein
Mayo Clinic

Related medicine news :

1. Common MS drugs taken together do not reduce relapse risk
2. Study: HPV Genital Warts is Most Common Sexually Transmitted Infection in U.S. Military, polyDNA Recommends Gene-Eden-VIR Against the HPV Infection
3. Anxiety May Be More Common Than Depression After Pregnancy
4. 7 genetic risk factors found to be associated with common eye disorder
5. Stress Disorder May Be Common Among ICU Patients on Ventilators
6. Study identifies growth factor essential to the most common malignant pediatric brain tumor
7. How common is sexting among urban minority youth?
8. PTSD symptoms common among ICU survivors
9. Common Sense Approaches May Stem ICU Delirium
10. Plastics Chemical BPA Common in Preemie ICU: Study
11. UCLA study finds endocrine disorder is most common cause of elevated calcium levels
Post Your Comments:
(Date:11/25/2015)... ... 2015 , ... The holiday season is jam-packed with family ... of attendees is of the utmost importance. Whether you are cooking at home ... recipes a try this holiday season. , Turkey Croquettes ,     Ingredients: ...
(Date:11/25/2015)... ... 2015 , ... Ministers, senior government and UN agencies, representatives ... of Excellence, and public R&D institutions, civil societies and other partners gathered today ... African Network for Drugs and Diagnostics Innovation, ANDI, Stakeholders Meeting. The three- day ...
(Date:11/25/2015)... ... 25, 2015 , ... Dental professionals who would like to become more proficient ... attend Dr. Mark Iacobelli’s Advanced Implant Mentoring (AIM) CE course. Courses will be held ... the co-founders of Advanced Implant Mentoring (AIM), Dr. Iacobelli and Dr. D’Orazio are proud ...
(Date:11/25/2015)... ... November 25, 2015 , ... Smiles by Stevens ... Bruxism, and moderate facial wrinkling. While many patients are aware of the benefits of ... success Botox® delivers to those suffering with discomfort, soreness, and pain as a result ...
(Date:11/25/2015)... , ... November 25, 2015 , ... “While riding the ... inventor, from Bronx, N.Y. “I thought there had to be a convenient and comfortable ... PROTECTOR. , The PROTECTOR enables disabled individuals to safely travel during cold or inclement ...
Breaking Medicine News(10 mins):
(Date:11/26/2015)... 3D bioprinting market is expected ... new report by Grand View Research Inc. Rising prevalence of ... kidney transplantation is expected to boost the market growth, as ... transplantation. --> 3D bioprinting market is expected ... new report by Grand View Research Inc. Rising prevalence of ...
(Date:11/26/2015)... , November 26, 2015 ... the addition of the  "2016 Future ... Global Cell Surface Testing Market: Supplier ... to their offering.  --> ... of the  "2016 Future Horizons and ...
(Date:11/26/2015)... Research and Markets ( ) has ... Market by Type (Dressings, Therapy Devices, Active Wound Care), ... Facility), and Geography - Global Forecast to 2020" ... --> The purpose of this report ... the global advanced wound care market. It involves deep ...
Breaking Medicine Technology: