Navigation Links
Link between widely used osteoporosis drugs and heart problems probed
Date:4/6/2009

WINSTON-SALEM, N.C. New research at Wake Forest University School of Medicine evaluated the link between a common class of drugs used to prevent bone fractures in osteoporosis patients and the development of irregular heartbeat.

The study's findings appear in the current issue of Drug Safety, a publication of the International Society of Pharmacovigilance covering the safe and proper use of medicines.

"Some trials show there could be a potential link between the use of bisphosphonates and the development of serious heart rhythm problems, but in our study the link wasn't conclusive," said Sonal Singh, M.D., M.P.H., an assistant professor of internal medicine and lead investigator for the study. "So we urge that additional investigations be conducted."

Bisphosphonates, found in prescription drugs including BonivaTM, FosomaxTM, ReclastTM and ActonelTM, inhibit the breakdown of bones, which reduces the risk of fractures, especially those of the spine and hips in older patients. The first such drugs were approved for use in the mid-1990s.

Early studies indicated that the use of bisphosphonates might cause problems with heart rhythm, or atrial fibrillation, which increases the risk for stroke or heart attack. For the study published this month, researchers analyzed the data from previous observational studies and clinical trials to determine the link between bisphosphonate therapy and irregular heart beat.

Researchers found that bisphosphonate use was associated with a significant increase in the incidence of "serious" heart rhythm disturbances, classified by hospitalization, disability or death resulting from the condition. However, when they included "non-serious" cases in their analysis, they found no overall increased risk of atrial fibrillation, the study shows.

"Our findings were discordant, with conflicting results," Singh said. "The challenge now is to figure out what it all means."

In the clinical trials reviewed, medical records of more than 13,000 patients who had osteoporosis or fractures and were given bisphosphonates were compared to the records of more than 13,000 patients who received a placebo during study participation. Researchers were looking for the incidence of irregular heartbeat first, and then stroke or death caused by stroke or heart attack as a secondary outcome. The patient files reviewed were primarily of women who were treated with bisphosphonates and were generally in their early 70s, according to the study.

"We found no risk of stroke and cardiovascular mortality in the trials," Singh said. "That was very reassuring."

The observational studies evaluated the risk of irregular heartbeat in patients treated with bisphosphonates compared with those who had not received the drug. A review of these studies found different results. One study showed an increased risk of irregular heartbeat in patients taking the drugs and others showed no associated risk.

"The amount of data on the outcome of bisphosphonate use is insufficient to make a definitive conclusion," said Vinodh Jeevanantham, M.D., an instructor of internal medicine and co-researcher on the School of Medicine study.

The federal Food and Drug Administration called the results of the previous bisphosphonate studies "discordant" in a November 2008 update to its safety review of the drug. The agency's review of four previous trials also found no link between bisphosphonates and irregular heartbeat but suggested the need for more research.

Given these results, physicians should not change they way they prescribe the drugs for the majority of patients with osteoporosis, Singh said, and patients should not stop taking them. He cautioned, however, that patients with pre-existing heart conditions and those with risk factors for rhythm disturbance should be especially vigilant for the development of atrial fibrillation, and doctors should continue to closely monitor patients at risk for atrial fibrillation who are taking bisphosphonates.

"People who develop atrial fibrillation after using bisphosphonates should be reporting it to regulatory agencies," Singh said.


'/>"/>

Contact: Jessica Guenzel
jguenzel@wfubmc.edu
336-716-3487
Wake Forest University Baptist Medical Center
Source:Eurekalert

Related medicine news :

1. Comparison of obstetric outcomes between on-call and patients own obstetricians
2. Mailman School of Public Health study examines link between racial discrimination and substance use
3. New link between estrogen and breast cancer
4. Link Uncovered Between Benign Prostatic Hyperplasia and NSAIDs, Says Harvard Mens Health Watch
5. Link Between Chronic Pain and Insomnia Uncovered at PAINWeek 2007
6. Scientists demonstate link between genetic variant and effectiveness of smoking cessation meds
7. Researchers discover correlation between GERD and obesity in females
8. NIH awards $10.8M to Columbia to study connection between diabetes and heart disease
9. Researchers Pinpoint Link Between Caloric Restriction and Longevity
10. Link Between Air Pollution, Stroke Gets Clearer
11. No Link Between Anti-Nausea Drug, Heart Trouble
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... ... locations throughout Arkansas that offers insurance and financial preparation services, is providing an ... Rock City Rescue organization. , Rock City Rescue is a locally recognized nonprofit ...
(Date:10/13/2017)... Vegas, Nevada (PRWEB) , ... October 13, 2017 , ... ... 7® Hemp CBD Oil utilizing Purzorb™ technology. Applying the Purzorb™process to full spectrum CBD ... dose required and providing a CBD form that can be easily incorporated into liquid ...
(Date:10/13/2017)... ... October 13, 2017 , ... The Visiting Nurse Association ... Featuring a collection of specialty vendors and unique items from across the nation, this ... health and wellness services offered by the VNA. The boutique will be open ...
(Date:10/13/2017)... , ... October 13, 2017 , ... ... and Agile Software Development, has been awarded a contract by the Center for ... Agreement (BPA) aims to accelerate the enterprise use of Agile methodologies in a ...
(Date:10/12/2017)... ... October 12, 2017 , ... Planet Fitness, one of the largest and ... plans to open a flagship location in Covington, LA at 401 N. U.S. Highway ... store next to Office Depot in the Holiday Square shopping center. Its location allows ...
Breaking Medicine News(10 mins):
(Date:9/27/2017)... CAESAREA, Israel and NEW YORK , Sept. ... company with mobile health and big data solutions, today announced that its ... today. Please check your local TV listings for when The Dr. Oz ... ... ninth season this month. ...
(Date:9/22/2017)... -- AVACEN Medical (AVACEN) announced that its CE-Marked AVACEN ... with the widespread pain associated with fibromyalgia in the ... Essex, England commented, "I had difficulty ... sleep at all, tremendous pain, with every movement sending ... AVACEN 100] enough, how this has and is helping ...
(Date:9/13/2017)... 13, 2017   OrthoAtlanta has been named the ... Host Committee (AFHC) for the 2018 College Football Playoff (CFP) ... at Mercedes-Benz Stadium in Atlanta, Georgia . ... "I,m In" campaign, participating in many activities leading up to, ... ...
Breaking Medicine Technology: