Featured Research

from universities, journals, and other organizations

New Study Suggests Rx Estrogen Delivery Through The Skin May Show Safety Benefits As Opposed To Oral Delivery

Date:
March 30, 2009
Source:
NYU Langone Medical Center / New York University School of Medicine
Summary:
Transdermal delivery of estrogen therapy available by prescription "seems not to alter" the risk of venous thromboembolism, or blood clotting, in postmenopausal patients when compared to oral delivery, a new study suggests.

Transdermal delivery of estrogen therapy available by prescription "seems not to alter" the risk of venous thromboembolism (VTE), or blood clotting, in postmenopausal patients when compared to oral delivery, a new study suggests. The study was conducted by researchers at NYU Langone Medical Center and was published in the latest issue of Menopause: The Journal of the North American Menopause Society.

Related Articles


Prescription transdermal estrogen therapy is bioidentical to estrogen produced by a woman's ovaries before menopause and delivered through the skin. Transdermal estrogen is available in a variety of formulations which have been quality controlled and approved safe and effective by the United States Food and Drug Administration (FDA).

The team at NYU Langone sought to determine the effects of delivery of estrogen therapy on postmenopausal women. Blood obtained from 84 postmenopausal women was tested for clotting activity before and after administration of oral or transdermal estrogen for a period of eight weeks. Women with borderline clotting issues showed "a significant acceleration" of clotting after oral estrogen therapy, but no significant change after transdermal estrogen therapy.

"Venous thromboembolic complications or blood clots represent an established risk factor of estrogen therapy, and evidence is now mounting that the route of estrogen administration influences this risk," said researcher Lila Nachtigall, M.D., Director of the Women's Wellness Program at NYU. "These new data on the safety of transdermal HT delivery may prove to be useful information for postmenopausal women deciding whether to take estrogen therapy and whether to take it orally or through the skin."

The research team studied platelet activity in the study participants' blood. Platelets serve a central role in forming pathological arterial thrombosis that causes myocardial infarction and stroke. The study's authors further concluded that the ability to identify postmenopausal women with an increased risk of arterial thrombosis or clotting before even starting estrogen therapy is an important goal to help physicians determine which women may be at the least risk to benefit from estrogen therapy.

"The effect of estrogen therapy on cardiovascular risk remains a point of controversy; however, these data suggest that estrogen delivered transdermally may not increase the likelihood of clotting for women who are at borderline risk," said Dr. Nachtigall. "This study supports the emerging data suggesting that oral, not transdermal estrogen may increase the risk of venous thromboembolism in postmenopausal women."

Transdermal estrogen therapies available by prescription offer effective, low-dose estrogen for the treatment of moderate to severe hot flashes associated with menopause and are administered in the form of gels, sprays and patches. Some include: estradiol gel 0.1% available in three doses 0.25, 0.5, and 1.0 mg estradiol ; estradiol patches available in .025mg, .0375mg, .05mg, .075mg; and .1mg.a transdermal estradiol mist spray.


Story Source:

The above story is based on materials provided by NYU Langone Medical Center / New York University School of Medicine. Note: Materials may be edited for content and length.


Cite This Page:

NYU Langone Medical Center / New York University School of Medicine. "New Study Suggests Rx Estrogen Delivery Through The Skin May Show Safety Benefits As Opposed To Oral Delivery." ScienceDaily. ScienceDaily, 30 March 2009. <www.sciencedaily.com/releases/2009/03/090326134024.htm>.
NYU Langone Medical Center / New York University School of Medicine. (2009, March 30). New Study Suggests Rx Estrogen Delivery Through The Skin May Show Safety Benefits As Opposed To Oral Delivery. ScienceDaily. Retrieved November 27, 2014 from www.sciencedaily.com/releases/2009/03/090326134024.htm
NYU Langone Medical Center / New York University School of Medicine. "New Study Suggests Rx Estrogen Delivery Through The Skin May Show Safety Benefits As Opposed To Oral Delivery." ScienceDaily. www.sciencedaily.com/releases/2009/03/090326134024.htm (accessed November 27, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, November 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Leaves Orphans Alone in Sierra Leone

Ebola Leaves Orphans Alone in Sierra Leone

AFP (Nov. 27, 2014) — The Ebola epidemic sweeping Sierra Leone is having a profound effect on the country's children, many of whom have been left without any family members to support them. Duration: 01:02 Video provided by AFP
Powered by NewsLook.com
Experimental Ebola Vaccine Shows Promise In Human Trial

Experimental Ebola Vaccine Shows Promise In Human Trial

Newsy (Nov. 27, 2014) — A recent test of a prototype Ebola vaccine generated an immune response to the disease in subjects. Video provided by Newsy
Powered by NewsLook.com
Pet Dogs to Be Used in Anti-Ageing Trial

Pet Dogs to Be Used in Anti-Ageing Trial

Reuters - Innovations Video Online (Nov. 26, 2014) — Researchers in the United States are preparing to discover whether a drug commonly used in human organ transplants can extend the lifespan and health quality of pet dogs. Video provided by Reuters
Powered by NewsLook.com
Today's Prostheses Are More Capable Than Ever

Today's Prostheses Are More Capable Than Ever

Newsy (Nov. 26, 2014) — Advances in prosthetics are making replacement body parts stronger and more lifelike than they’ve ever been. 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:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

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