Monday, July 19, 2010

Scientists say vaginal gel cuts HIV-infections by half

A microbicide applicator (image: Caprisa website)A vaginal gel has significantly cut the rate of women contracting HIV from infected partners in an experiment in South Africa, researchers said.

They said the gel, containing Aids drug tenofovir, cut infection rates among 889 women by 50% after one year of use, and by 39% after two and a half years.

If the results are confirmed it would be the first time that a microbicidal gel has been shown to be effective.

Such a gel could be a defence for women whose partners refuse to wear condoms.

New ways of curbing the spread of HIV are badly needed, particularly in sub-Saharan Africa, where nearly 60% of those infected with the virus are women.

Many women are often forced to take part in unsafe sex, and are biologically more vulnerable to HIV infection than men, making a gel they apply an attractive option.

Welcoming the results, UN agencies said they would convene an expert consultation in South Africa next month to discuss the next steps with the product.

'Just pennies'

The results of the three-year study, which was completed by the Centre for the Aids Programme of Research in South Africa (Caprisa), are being presented at an international aids conference in Vienna and were published on Monday by the US magazine Science.

The gel was found to be both safe and acceptable when used once in the 12 hours before sex and once in the 12 hours after sex by women aged 18 to 40 years.

Salim Abdool Karim, one of the two leading co-researchers, told reporters in Vienna that the 889 women involved in the trial, conducted in the coastal city of Durban and a remote rural village, had largely used the gel as directed.

They were also given condoms and advice about sexually transmitted diseases, and tested for HIV once a month. ...

via BBC News - Scientists say vaginal gel cuts HIV-infections by half.

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