Featured Research

from universities, journals, and other organizations

Hemostatic drug less effective than originally predicted

Date:
November 15, 2010
Source:
Canadian Medical Association Journal
Summary:
The use of recombinant activated factor 7 -- a drug used to treat bleeding in hemophiliacs -- in patients without hemophilia is not recommended because of the potential for adverse events, found a new study.

The use of recombinant activated factor 7 (rFVIIa) -- a drug used to treat bleeding in hemophiliacs -- in patients without hemophilia is not recommended because of the potential for adverse events, found a study published in CMAJ (Canadian Medical Association Journal).

Recombinant activated factor 7 is a hemostatic agent licensed for the treatment of bleeding in hemophilia patients. It is also used "off-label" for the prevention and treatment of bleeding in patients without hemophilia including patients undergoing surgery, liver transplants and other procedures.

The use of rFVIIa in people without hemophilia appears to be common. For example, out of more than 2700 cases in the Australian and New Zealand Hemostasis Registry that use rFVIIa, only 1% had a diagnosis of hemophilia.

This systematic review was conducted to analyze the effectiveness and risks of rFVIIa in patients without hemophilia and to assess the implications of these results for future research.

"Physicians must believe that 'off-label' use is effective and outweighs risks," write Dr. Yulia Lin, Sunnybrook Health Sciences Centre and coauthors. "However, randomized controlled trials (RCTs) evaluating rFVIIa have raised concerns about adverse effects, particularly thromboembolic events (blood clots)."

The review, which looked at 14 prophylactic use RCTs including 1137 patients and 12 therapeutic use RCTs with 2538 patients, found uncertainty about the benefits and harms of this therapy.

"Clinically significant benefits of rFVIIa as a more general hemostatic drug (outside of hemophilia) remain unproven," conclude the authors. "This systematic review has not shown a consistent benefit of off-label rFVIIa use in the therapeutic setting and (at best) only modest benefits in the prophylactic setting. Given the potential risks, it cannot be recommended and in most cases, its use should be restricted to a clinical trial."


Story Source:

The above story is based on materials provided by Canadian Medical Association Journal. Note: Materials may be edited for content and length.


Cite This Page:

Canadian Medical Association Journal. "Hemostatic drug less effective than originally predicted." ScienceDaily. ScienceDaily, 15 November 2010. <www.sciencedaily.com/releases/2010/11/101115122633.htm>.
Canadian Medical Association Journal. (2010, November 15). Hemostatic drug less effective than originally predicted. ScienceDaily. Retrieved September 22, 2014 from www.sciencedaily.com/releases/2010/11/101115122633.htm
Canadian Medical Association Journal. "Hemostatic drug less effective than originally predicted." ScienceDaily. www.sciencedaily.com/releases/2010/11/101115122633.htm (accessed September 22, 2014).

Share This



More Health & Medicine News

Monday, September 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Sierra Leone in Lockdown to Control Ebola

Sierra Leone in Lockdown to Control Ebola

AP (Sep. 21, 2014) Sierra Leone residents remained in lockdown on Saturday as part of a massive effort to confine millions of people to their homes in a bid to stem the biggest Ebola outbreak in history. (Sept. 20) Video provided by AP
Powered by NewsLook.com
Sierra Leone's Nationwide Ebola Curfew Underway

Sierra Leone's Nationwide Ebola Curfew Underway

Newsy (Sep. 20, 2014) Sierra Leone is locked down as aid workers and volunteers look for new cases of Ebola. Video provided by Newsy
Powered by NewsLook.com
Changes Found In Brain After One Dose Of Antidepressants

Changes Found In Brain After One Dose Of Antidepressants

Newsy (Sep. 19, 2014) A study suggest antidepressants can kick in much sooner than previously thought. Video provided by Newsy
Powered by NewsLook.com
Could Grief Affect The Immune Systems Of Senior Citizens?

Could Grief Affect The Immune Systems Of Senior Citizens?

Newsy (Sep. 19, 2014) The study found elderly people are much more likely to become susceptible to infection than younger adults going though a similar situation. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins