Navigation Links
Efavirenz-based initial therapies associated with better outcomes in HIV-infected adults
Date:10/14/2008

A study led by researchers at the Johns Hopkins Bloomberg School of Public Health found that HIV-infected patients taking the antiretroviral drug efavirenz were more likely to adhere to treatment and less likely to experience virologic failure and death compared to patients taking nevirapine. Nevirapine is the most frequently prescribed drug for patients undergoing highly active antiretroviral therapy (HAART) for the treatment of HIV/AIDS in sub-Saharan Africa, where the study was conducted. The study is published in the October 18, 2008 issue of the journal AIDS.

"Our findings add to existing limited evidence that efavirenz-based therapies produce a more favorable virological and clinical outcome than nevirapine," says Jean Nachega, MD, PhD, MPH, lead author of the study and associate scientist with the Bloomberg School's Department of International Health. "Patients started on nevirapine had an increased risk of virologic failure and death, were significantly less likely than those started on efavirenz to achieve high treatment adherence."

Nachega, in collaboration with Gary Maartens, MD, FCP, professor of Medicine at University of Cape Town, and several other colleagues from the University of Cape Town in South Africa, examined the records of 2,817 HIV- infected adults currently enrolled in Aid for AIDS, a private-sector employer-subsidized disease management program in Africa. Participants were HAART nave adults who began nevirapine-based or efvirenz-based therapies between January 1998 and September 2004. Researchers determined how often patients requested reimbursement for their purchases of nevirapine- or efavirenz-based HAART to estimate adherence to their treatment regimens. They also evaluated patients CD4 counts, viral load changes and mortality, which are measurements that indicate how well a treatment is working. Program participants were in nine countries in Africa with the majority in South Africa.

Current World Health Organization guidelines recommend the use of a non-nucleoside reverse transcriptase inhibitor such as nevirapine or efavirenz in resource limited settings. Nearly 67 percent of countries in sub-Saharan Africa recommend nevirapine-based regimens for first line therapy because it is available at a lower cost and in a variety of generic fixed-dose combination regimens. In contrast, the U.S. Department of Health and Human Services and the International AIDS Society-USA both recommend the use of efavirenz because it has a more favorable toxicity profile and greater efficacy.

"Given the rapid roll-out of antiretroviral programs in Africa and the frequent use of first-line nevirapine-based HAART in such programs the assumption that efavirenz and nevirapine are equally effective needs to be reassessed," says Nachega, who is also professor and director of the Centre for Infectious Diseases at Stellenbosch University in South Africa. "Based on our results, there is a critical need for a large randomized clinical trial to definitively compare the outcomes of efavirenz and nevirapine and for acceleration of efforts to develop lower cost formulations of efavirenz, including generic, fixed-dose combinations in Africa."


'/>"/>

Contact: Tim Parsons
tmparson@jhsph.edu
410-955-7619
Johns Hopkins University Bloomberg School of Public Health
Source:Eurekalert

Related biology news :

1. Catcher Holdings Inc. Lands Contract for Initial Deployments at Nine Homeland Security and State Government Agencies
2. Carnegie Mellon scientists investigate initial molecular mechanism that triggers neuronal firing
3. Landmark study unlocks stem cell, DNA secrets to speed therapies
4. Argyrin: Natural substance raises hope for new cancer therapies
5. Newly identified role for power plants in human cells could lead to targeted therapies
6. 2 new therapies show promise for cancer patients
7. Challenges and promise of cell-based therapies
8. The construction of heart modelling leads path to new therapies
9. NCI renewal grant to develop new cancer therapies
10. Linchpin gene may be useful target for new breast cancer therapies
11. Low sperm count may be associated with prenatal testosterone excess
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/16/2017)... , May 16, 2017   Bridge Patient ... organizations, and MD EMR Systems , an ... partner for GE, have established a partnership to ... product and the GE Centricity™ products, including Centricity ... These new integrations will allow ...
(Date:4/17/2017)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... its 2016 Annual Report on Form 10-K on Thursday April 13, ... ... the Investor Relations section of the Company,s website at http://www.nxt-id.com ... http://www.sec.gov . 2016 Year Highlights: ...
(Date:4/11/2017)... N.Y. , April 11, 2017 ... fingerprints, but researchers at the New York University ... College of Engineering have found that partial similarities ... security systems used in mobile phones and other ... thought. The vulnerability lies in the ...
Breaking Biology News(10 mins):
(Date:6/23/2017)... ... June 23, 2017 , ... The Academy ... and the University Aviation Association (UAA), the unifying voice for collegiate aviation education, ... will encourage teamwork, competition, and success through a STEM-based education platform. , Much ...
(Date:6/22/2017)... (PRWEB) , ... June 22, 2017 , ... ... health leaders in designating infertility as a disease, bringing new hope for prospective ... at their 2017 annual meeting to back the World Health Organization’s designation in ...
(Date:6/22/2017)... MA (PRWEB) , ... June 22, 2017 , ... Charm ... ILVO validation. The AMPH test was determined to be appropriate as a screening test ... visual interpretation, on the Charm EZ system, and the Charm EZ Lite system. These ...
(Date:6/20/2017)... ... 2017 , ... National executive search firm, Slone Partners, announces ... and biomarker expertise, as VP of Scientific Affairs at Cambridge Biomedical. , ... development and sample testing services. The organization acts as a leading provider of ...
Breaking Biology Technology: