News / Health

HIV Vaccine Study Cancelled

FILE - A major study testing a potential HIV vaccine has been cancelled.
FILE - A major study testing a potential HIV vaccine has been cancelled.
VOA News
The U.S. National Institutes of Health has cancelled a study testing an experimental HIV vaccine because scientists concluded it did not prevent infection or reduce the amount of HIV in the blood. HIV is the virus that causes AIDS.

The so-called HVTN 505 study began in 2009 and is one of several such studies underway to find an effective AIDS vaccine. The study involved over 2,500 volunteers, specifically men who have sex with men and transgender people who have sex with men.

"This trial has provided a clear, swift answer about a specific vaccine strategy. It's not the answer we hoped for, but the search doesn't end here," Mitchell Warren, executive director of the nonprofit group AVAC: Global Advocacy for HIV Prevention, said in a statement.

While the failure of the vaccine is a blow to HIV vaccine research, the National Institutes of Allergy and Infectious Disease said it would continue to monitor the volunteers.

The experimental vaccine in the cancelled trials was based on a common cold virus. It was used to introduce HIV genes into the body to prime the immune system to provide a vaccine boost.

Matthew Rose, a participant HVTN 505 study, remained hopeful that an HIV vaccine will eventually be developed.

"These results do not change the fundamental view that an AIDS vaccine remains critical to any long-term strategy to end the AIDS epidemic," Rose told Reuters.

There are two traditional methods for creating a vaccine. One uses a weakened or attenuated version of a live virus to generate an immune response. The other uses a dead virus.

Both methods are proven to be safe and effective, except when it comes to HIV. Vaccine candidates produced by these methods simply have not been successful in people when it comes to the AIDS virus.

A Thai study from 2009 still has many hopeful. But even that study involving a vaccine known as RV 144 was judged to provide only 31 percent protection against HIV.

You May Like

Mood Tense Ahead of Scotland Independence Vote

As race to persuade undecided voters continues, No voters say they believe life in Scotland will slowly improve and do not want to take a risk by endorsing independence More

South Africa’s 'Open Mosque' Admits Everyone, Including Critics

Open Mosque founder plans to welcome gay worshipers and allow women to lead prayers More

Ukrainian Activist in Despair About Future of Her Country

IrIna Dovgan, accused of being a spy and tortured by pro-Russian separatists, is appealing to UN Human Rights Council to support her country More

This forum has been closed.
Comment Sorting
Comments
     
by: James Hilliard from: USA
April 26, 2013 9:44 PM
Please study MAGIC JOHNSON...

And quit pretending like you don't have the cure.

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
A Dinosaur Fit for Land and Wateri
X
September 17, 2014 8:44 PM
Residents and tourists in Washington D.C. can now examine a life-size replica of an unusual dinosaur that lived almost a hundred million years ago in northern Africa. Scientists say studying the behemoth named Spinosaurus helps them better understand how some prehistoric animals adapted to life on land and in water. The Spinosaurus replica is on display at the National Geographic museum. VOA’s George Putic has more.
Video

Video A Dinosaur Fit for Land and Water

Residents and tourists in Washington D.C. can now examine a life-size replica of an unusual dinosaur that lived almost a hundred million years ago in northern Africa. Scientists say studying the behemoth named Spinosaurus helps them better understand how some prehistoric animals adapted to life on land and in water. The Spinosaurus replica is on display at the National Geographic museum. VOA’s George Putic has more.
Video

Video Iraqi Kurdistan Church Helps Christian Children Cope find shelter in churches in the Kurdish capital, Irbil

In the past six weeks, tens of thousands of Iraqi Christians have been forced to flee their homes by Islamic State militants and find shelter in churches in the Kurdish capital, Irbil. Despite U.S. airstrikes in the region, the prospect of people returning home is still very low and concerns are starting to grow over the impact this is having on the displaced youth. Sebastian Meyer reports from Irbil on how one church is coping.
Video

Video NASA Picks Boeing, SpaceX to Carry Astronauts Into Space

The U.S. space agency, NASA, has chosen Boeing and SpaceX companies to build the next generation of spacecraft that will carry U.S. astronauts to the International Space Station by the year 2017. The deal with private industry enables NASA to end its dependence on Russia to send space crews into low Earth orbit and back. Zlatica Hoke has more.
Video

Video Future of Ukrainian Former President's Estate Uncertain

More than six months after Ukraine's former President Viktor Yanukovych fled revolution to Russia, authorities have yet to gain control of his palatial estate. Protesters occupy the grounds and opened it to tourists but they are also refusing to turn it over to the state. VOA's Daniel Schearf reports from Mezhigirya, just north of Kyiv.
Video

Video China Muslims Work to Change Perceptions After Knife Attacks

China says its has sentenced three men to death and one woman to life in prison for a deadly knife attack in March that left more than 30 dead and 140 injured. Beijing says Muslim militants from China's restive western region of Xinjiang carried out the attacks. Now, more than six months after the incident, residents in the city are still coping with the aftermath. VOA's Bill Ide has more from Kunming.
Video

Video Enviropreneur Seeks to Save the Environment, Empower the Community

Lorna Rutto, a former banker, is now an ‘enviropreneur’ - turning plastic waste into furniture and fences discusses the challenges she faces in Africa with raw materials and the environment.
Video

Video West Trades Accusations Over Ransoms

As world leaders try to forge a common response to the threat posed by Islamic State militants in Iraq and Syria, there is simmering tension over differing policies on paying ransoms. In the past month, the jihadist group has beheaded two Americans and one Briton. Both countries refuse to pay ransom money. As Henry Ridgwell reports for VOA from London, there is uncertainty in the approach of some other European nations.
Video

Video Scotland Independence Bid Stokes Global Interest

The people of Scotland are preparing to vote on whether to become independent and break away from the rest of Britain, in a referendum being watched carefully in many other countries. Some see it as a risky experiment; while others hope a successful vote for independence might energize their own separatist demands. Foreign immigrants to Scotland have a front row seat for the vote. VOA’s Henry Ridgwell spoke to some of them in Edinburgh.


Carnage and mayhem are part of daily life in northern Nigeria, the result of a terror campaign by the Islamist group Boko Haram. Fears are growing that Nigeria’s government may not know how to counter it, and may be making things worse. More

AppleAndroid