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Coverage of HIV Research for Prevention Conference (HIV R4P)

HIVandHepatitis.com coverage of the HIV Research for Prevention Conference, October 28-31, in Cape Town.

This conference -- combining the previous HIV Vaccines and Microbicides meetings -- includes all aspects of HIV prevention including experimental vaccines, microbicide gels and rings, and pre-exposure prophylaxis (PrEP).

Full listing of coverage by topic

HIV R4P website

11/4/14

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HIV R4P: Research for Prevention Conference Opens with Real Hope for HIV Vaccine

"There’s only one Berlin Patient still. But by this time next year he will at least be joined by 40-50 Portland monkeys." These were the words of vaccine researcher Louis Picker, summarizing in quotable form why the outlook for the development of an effective HIV vaccine is brighter than it has been for years, in a satellite session in advance of the HIV Research for Prevention conference (R4P) in Cape Town, South Africa.

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HIV R4P: Model Suggests More Frequent Truvada PrEP Needed for Vaginal vs Anal Sex

Tenofovir reaches lower levels in vaginal and cervical tissue compared with rectal tissue, helping to explain why pre-exposure prophylaxis (PrEP) did not protect women as much as gay and bisexual men in clinical trials, and suggesting that women having vaginal sex may need to take PrEP more often than people having anal sex, researchers reported at the HIV Research for Prevention meeting this week in Cape Town.

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HIV R4P: Injectable Cabotegravir Makes Progress, Doubts About Injectable Rilpivirine

Researchers have determined the dose of an injectable formulation of the integrase inhibitor cabotegravir (formerly GSK1256744) that will be taken into efficacy trials to see if it can be used for pre-exposure prophylaxis (PrEP). Progress on an injectable formulation of another drug, rilpivirine, received a setback, however, when animal studies showed it lost its efficacy against viral challenge after only 18-21 days, researchers reported at the HIV Research for Prevention meeting this week in Cape Town.

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Second European PrEP Study Closed Early Due to High Effectiveness

In an extraordinary development, a second European scientific trial of pre-exposure prophylaxis (PrEP) has had its randomized phase closed early due to high effectiveness, just two weeks after the UK PROUD trial did exactly the same thing. All participants assigned to receive placebo in the IPERGAY trial will be offered intermittent Truvada PrEP.

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HIV R4P: Tenofovir Gel Associated with Lower Herpes Simplex Risk for Women

The risk of acquiring herpes simplex virus type 2 (HSV-2) was reduced by 46% among women who regularly used a vaginal gel containing tenofovir, according to a secondary analysis of the VOICE trial presented at the HIV Research for Prevention conference (R4P) this week in Cape Town. There was no significant difference in the age, marital status, country, practice of anal sex, HIV status, or hormonal contraceptive use between women who acquired HSV-2 and those who did not.

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HIV Research for Prevention Conference Features Advances in Vaccines, Microbicides, PrEP

The first HIV Research for Prevention -- or HIV R4P -- conference takes place this week in Cape Town, bringing together more than 1300 leading researchers, policymakers, and advocates working on interventions such as HIV vaccines, microbicides, antiretroviral treatment as prevention (TasP), and new forms of pre-exposure prophylaxis (PrEP). The conference incorporates the previously separate HIV vaccine and microbicide meetings as biomedical prevention technologies have converged.

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