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CROI 2014: Self-Reports Did Not Reflect Actual Gel or Pill Use in VOICE PrEP Trial

Self-reported adherence to daily tenofovir or Truvada pills or tenofovir vaginal gel for pre-exposure prophylaxis (PrEP) against HIV infection did not match drug levels in the body, helping to explain the lack of protection seen in the VOICE trial, researchers reported at the 21st Conference on Retroviruses and Opportunistic Infections (CROI 2014) this month in Boston.

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CROI 2014: Dapivirine Vaginal Ring Appears Safe and Effective in Tissue Study

Vaginal rings containing the experimental NNRTI dapivirine were well-tolerated and blocked HIV infection of cervical tissue samples, but rings containing maraviroc did not produce adequate drug concentrations, researchers reported at the 21st Conference on Retroviruses and Opportunistic Infections (CROI 2014) this month in Boston.

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AAPS Showcases Vaginal Ring with Tenofovir + Contraceptive, Gel Suitable for Vaginal and Rectal Use

A new intravaginal ring delivers both tenofovir for HIV prevention and levonorgestrel for contraception for 3 months, researchers reported at the American Association of Pharmaceutical Scientists (AAPS) Annual Meeting and Exposition taking place this week in San Antonio. Other studies looked at a novel gel for both vaginal and rectal use containing the antiretroviral IQP-0528, and a bio-adhesive vaginal gel combining tenofovir and the anti-herpes drug acyclovir.

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HIV Integrase Inhibitor Elvitegravir Approved in European Union

The next-generation HIV integrase inhibitor elvitegravir has been approved by the European Commission, to be marketed under the brand name Vitekta, according to an announcement this week from developer Gilead Sciences. It is indicated for use in combination antiretriviral regimens containing a ritonavir-boosted protease inhibitor.

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ICAAC 2013: Tenofovir Vaginal Ring Protects Monkeys on Depo-Provera Against HIV-like Virus

An intravaginal ring containing tenofovir protected all but 1 macaque monkey given hormonal contraceptives and repeatedly exposed to a hybrid human/simian virus similar to HIV, according to a late-breaker presentation at the 53rd Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC 2013) this month in Denver.

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