Navigation Links
HIV drug resistance risk in mothers reduced by combination of common drugs
Date:11/9/2007

BIRMINGHAM, Ala. -- New research from the University of Alabama at Birmingham (UAB) shows that adding a single dose of two common anti-HIV drugs can prevent HIV-positive pregnant women from developing resistance to an entire class of drugs, potentially improving future treatment options.

Providing tenofovir and emtricitabine with nevirapine during labor greatly reduces the extent of resistance to non-nucleoside reverse transcriptate inhibitors (NNRTIs), such as nevirapine, which HIV-positive women take to lower the risk of mother-to-child transmission during childbirth.

Benjamin Chi, M.D., assistant professor of obstetrics and gynecology at UAB, and colleagues, reported their findings online in this weeks edition of The Lancet. Chi said the drug combination reduced resistance to NNRTIs by more than half at six weeks after delivery. This finding is important because between 20 and 69 percent of women given nevirapine develop resistance to the NNRTIs after taking a single dose. Although resistance becomes undetectable one to two years after ingestion, there are concerns that it could still compromise a womans future treatment options.

In this study, 399 participants were randomly assigned to receive or not receive single dose tenofovir and emtricitabine along with routine care. Routine care meant starting the anti-HIV drug zidovudine (or AZT) at 32 weeks gestation, and then ingesting a single dose of nevirapine at the start of labor. Participants were healthy and did not yet require treatment with potent antiretroviral therapy. The main goal of the study was to see if there was a difference in the presence of NNRTI resistance mutations six weeks after giving birth. The study was conducted in Lusaka, Zambia between 2005 and 2007.

Overall, 12 percent of women given the tenofovir and emtricitabine dose developed NNRTI resistance, compared to 25 percent among those who did not receive the additional drugs. Tenofovir and emtricitabine appeared to be safe, with no attributable side effects. Although these additional drugs did prevent NNRTI resistance, their use did not lead to substantial reductions in mother-to-child HIV transmission.

These results are encouraging for places like Zambia, which must rely on nevirapine for both HIV prevention and treatment. The simplicity and effectiveness of this regimen is an important aspect of this intervention, Chi said.

HIV-infected pregnant women who take nevirapine in labor now have an easy way to reduce some of the negative consequences associated with the drug.


'/>"/>

Contact: Jennifer Lollar
jpark@uab.edu
205-934-3888
University of Alabama at Birmingham
Source:Eurekalert

Related medicine news :

1. Fat on chest and upper back increases risk of insulin resistance
2. Molecular fingerprint of breast-cancer drug resistance can predict response to treatment
3. Cell skeleton may hold key to overcoming drug resistance in cancer
4. Genetic approach provides new insight into trastuzumab resistance in breast cancer
5. Video and Photo: Tasigna(R) Receives US Approval Providing New Hope to Chronic Myeloid Leukemia Patients With Resistance or Intolerance to Existing Therapies
6. FDA Warns of Codeine Risk for Some Nursing Mothers
7. Mothers Know Best: NFL Moms Team With Eddie George to Showcase a Better Way to a Healthier Lifestyle
8. Hip size of mothers linked to breast cancer in daughters
9. Overweight mothers run greater risk of having hyperactive children
10. New Case Study Details How an Illinois Hospital Created a Safe Lifting Team that Dramatically Reduced Injuries, Increased Staff Satisfaction
11. Giving emergency nurses aromatherapy massages with music dramatically reduced stress levels
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/26/2016)... ... , ... Quality metrics are proliferating in cancer care, and are derived from ... of the beholder, according to experts who offered insights and commentary in the current ... For the full issue, click here . , For the American Society of ...
(Date:6/26/2016)... ... ... PawPaws brand pet supplements owned by Whole Health Supply is ... of felines. The formula is all-natural and is made from Chinese herbs that have ... Kidney Support Supplement Soft Chews are Astragalus Root Extract and Rehmannia Root Extract ...
(Date:6/25/2016)... ... June 25, 2016 , ... ... and applications at AcademyHealth’s Annual Research Meeting June 26-28, 2016, at the Hynes ... important health care topics including advance care planning, healthcare costs and patient and ...
(Date:6/25/2016)... , ... June 25, 2016 , ... "With 30 hand-drawn ... specific project," said Christina Austin - CEO of Pixel Film Studios. , ProHand ... all within Final Cut Pro X . Simply select a ProHand generator and ...
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. Calvin Johnson has ... he has implemented orthobiologic procedures as a method for treating his patients. The ... first doctors to perform the treatment. Orthobiologics are substances that orthopaedic surgeons use ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... , June 24, 2016 ... the "Structural Electronics 2015-2025: Applications, Technologies, Forecasts" ... In-Mold Electronics, Smart Skin, Structural ... Structural electronics involves electronic and/or ... protective structures, replacing dumb structures such as vehicle ...
(Date:6/24/2016)... 2016 Research and Markets has announced ... Diagnostic Tests" report to their offering. ... The World Market for Companion Diagnostics covers ... Market analysis in the report includes the following: ... Diagnostic Kits) by Region (N. America, EU, ROW), 2015-2020 ...
(Date:6/24/2016)... , June 24, 2016  Arkis BioSciences, ... less invasive and more durable cerebrospinal fluid treatments, ... funding.  The Series-A funding is led by Innova ... Fund, and other private investors.  Arkis, new financing ... instrumentation and the market release of its in-licensed ...
Breaking Medicine Technology: