Corporate Banner
Satellite Banner
Immunology
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Study Evaluates Population-Wide Testing and Early Treatment for HIV Prevention

Published: Monday, September 30, 2013
Last Updated: Monday, September 30, 2013
Bookmark and Share
A study in South Africa and Zambia will assess whether house-to-house voluntary HIV testing and prompt treatment of HIV infection can substantially reduce the number of new HIV infections across communities.

The trial, Population Effects of Antiretroviral Therapy to Reduce HIV Transmission (PopART), or HPTN 071, is sponsored and co-funded by the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health. The trial is funded primarily by the U.S. President's Emergency Plan for AIDS Relief (PEPFAR), administered by the Office of the Global AIDS Coordinator.

The PopART study will build on the results of the landmark, NIAID-funded HPTN 052 trial, which found that HIV-infected individuals who start treatment early, when their immune systems are relatively healthy, dramatically reduce the risk of transmitting the virus to their heterosexual partners.

"Through this new study, we aim to learn whether the treatment of HIV-infected individuals as a form of HIV prevention, an approach previously tested in roughly 1,800 heterosexual couples where one partner was infected, will be just as effective when implemented across an entire adult population," said NIAID Director Anthony S. Fauci, M.D. "The study also will tell us whether this method of delivering population-wide HIV treatment as prevention is feasible and cost-effective."

The trial is being conducted in South Africa and Zambia because the HIV prevalence in those countries is among the highest in the world. An estimated 12.5 percent of adults in Zambia and 17.3 percent of adults in South Africa are infected.

Leading the study are Richard Hayes, D.Sc., professor of epidemiology and international health at the London School of Hygiene and Tropical Medicine, and Sarah J. Fidler, Ph.D., reader in the Department of Medicine at Imperial College London.

"Mathematical models indicate that if a high proportion of a population can be tested for HIV, and those found to be infected are offered treatment right away, then the rate of new HIV infections could decrease substantially over time," said Dr. Hayes. "The PopART study is assessing whether this approach works and whether the benefits outweigh the costs -- information that could help guide public health policy."

The PopART study investigators have designed an HIV prevention package that includes

 -- Door-to-door, voluntary HIV testing offered at annual intervals

 -- Linkage of those who test positive for the virus to care at local health centers

 -- Promotion of voluntary medical circumcision to men who are not HIV-infected

 -- Promotion of steps to prevent mother-to-child HIV transmission

 -- Referral of individuals with other sexually transmitted infections to treatment

 -- Provision of condoms

The PopART trial will involve 21 communities in South Africa and Zambia with a total population of 1.2 million.  The study team has randomly assigned each community to one of three groups. One group of communities will receive the HIV prevention package along with the opportunity for HIV-infected individuals to begin treatment as soon as they test positive for the virus. The second group will receive the same HIV prevention package, and infected individuals will be offered treatment at the stage of infection recommended by their country's HIV treatment guidelines. The third group will serve as a control and will receive existing HIV prevention and testing services along with HIV care and treatment according to current national guidelines for their country.

The study team will measure the impact of the two HIV prevention packages by determining the number of new HIV infections among a representative sample of 52,500 adults drawn from the 21 study communities and followed for three years. The study is expected to end in 2019.

The study research is being conducted by investigators at the NIH-funded HIV Prevention Trials Network (HPTN), the London School of Hygiene & Tropical Medicine, Imperial College London, the Zambia AIDS-Related Tuberculosis Project and the Desmond Tutu TB Centre of South Africa. PEPFAR partners will provide HIV care and treatment to the study communities under the direction of the U.S. Agency for International Development and the U.S. Centers for Disease Control and Prevention.

In addition to PEPFAR and NIAID, study funders include the International Initiative for Impact Evaluation with support from the Bill & Melinda Gates Foundation, as well as the National Institute on Drug Abuse and the National Institute of Mental Health, both part of NIH.


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 3,000+ scientific posters on ePosters
  • More than 4,500+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

Finding Factors That Protect Against Flu
A clinical trial examining the body’s response to seasonal flu suggests new approaches for evaluating the effectiveness of seasonal flu vaccines.
Wednesday, April 27, 2016
Factors Influencing Influenza Vaccine Effectiveness Uncovered
The long-held approach to predicting seasonal influenza vaccine effectiveness may need to be revisited, new research suggests.
Thursday, April 21, 2016
Study Finds Factors That May Influence Influenza Vaccine Effectiveness
Researchers at NIH have suggested that the long-held approach to predicting seasonal influenza vaccine effectiveness may need to be revisited.
Wednesday, April 20, 2016
Submissions Open for the Cancer Moonshot Program
NCI opens online platform to submit ideas about research for Cancer Moonshot.
Tuesday, April 19, 2016
NIH Awards Grants to Explore Vaccine Adjuvants
NIH awards six grants to explore how combination adjuvants improve vaccines.
Wednesday, April 06, 2016
Experimental Vaccine Protects Against Dengue Virus
An experimental dengue vaccine protected all the volunteers who received it from infection with a live dengue virus.
Wednesday, March 30, 2016
Experimental Ebola Antibody Protects Monkeys
Antibody isolated from Ebola survivor can advance to clinical trials.
Friday, February 26, 2016
Dengue Vaccine Enters Phase 3 Trial
Investigational vaccine to prevent ‘breakbone fever’ developed at NIH.
Friday, January 15, 2016
In Uveitis, Bacteria in Gut May Instruct Immune Cells to Attack the Eye
NIH scientists propose novel mechanism to explain autoimmune uveitis.
Wednesday, August 19, 2015
Novel Mechanism to Explain Autoimmune Uveitis Proposed
A new study on mice suggests that bacteria in the gut may provide a kind of training ground for immune cells to attack the eye.
Wednesday, August 19, 2015
HIV Control Through Treatment Durably Prevents Heterosexual Transmission of Virus
NIH-funded trial proves suppressive antiretroviral therapy for HIV-infected people effective in protecting uninfected partners.
Tuesday, July 21, 2015
Starting Antiretroviral Treatment Early Improves Outcomes for HIV-infected Individuals
NIH-funded trial results likely will impact global treatment guidelines.
Thursday, May 28, 2015
For Most Children with HIV and Low Immune Cell Count, Cells Rebound After Treatment
NIH-funded study finds T-cell level returns to normal with time.
Saturday, March 28, 2015
Strengthening the Immune System’s Fight Against Brain Cancer
NIH-funded research suggests novel way to improve vaccine efficacy in brain tumors.
Friday, March 20, 2015
Autoimmune Disease Super-Regulators Uncovered
Scientists discovered key genetic switches, called super-enhancers, involved in regulating the human immune system.
Tuesday, March 17, 2015
Scientific News
AACR 2016: Cancer Immunotherapy and Beyond
At this year's meeting there was a palpable buzz around subjects ranging from microbiomics to the tumor microenvironment and cancer vaccines, big data to in vitro and in vivo modeling and drug delivery (to name just a few).
Intestinal Worms Boost Immune System In A Surprising Way
EPFL researchers find that intestinal worm infections cause lymph nodes to produce more immune cells as well as grow in size.
Breast Milk Hormones Impact Bacteria In Infants’ Guts
Intestinal microbiome of children born to obese mothers significantly different from those born to mothers of healthy weight, CU Anschutz researchers find.
Improving Natural Killer Cancer Therapy
Vanderbilt University researchers discover transcription factor critical for NK cell expansion. Findings could lead to increased therapeutic efficacy.
Molecular Mechanism For Generating Specific Antibody Responses Discovered
Study could spur more ways to treat autoimmune disease, develop accurate vaccines.
Gut Microbiomes Of Infants Have An Impact On Autoimmunity
Exposure to pathogens early in life is beneficial to the education and development of the human immune system.
Understanding Female HIV Transmission
Glowing virus maps points of entry through entire female reproductive tract for first time.
COPD Linked to Increased Bacterial Invasion
Persistent inflammation in COPD may result from a defect in the immune system that allows airway bacteria to invade deeper into the lung.
Finding Factors That Protect Against Flu
A clinical trial examining the body’s response to seasonal flu suggests new approaches for evaluating the effectiveness of seasonal flu vaccines.
Vaccinations Are More Effective When Administered In The Morning
Research from the University of Birmingham shows that influenza vaccinations have more protective responses when administered in the morning.
SELECTBIO

SELECTBIO Market Reports
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
3,000+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,500+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!