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Truvada PrEP Causes Only Minimal Bone Loss, Raltegravir Easier on Bones than PIs

Use of tenofovir/emtricitabine (Truvada) for HIV pre-exposure prophylaxis (PrEP) was associated with a small decrease in bone mineral density that stabilized after the first 6 months, according to study findings reported in the April 23 edition of Clinical Infectious Diseases. Related research showed that HIV-positive people starting an antiretroviral regimen containing the integrase inhibitor raltegravir (Isentress) experienced less bone loss than those taking protease inhibitors.

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May 18 is HIV Vaccine Awareness Day

May 18 is HIV Vaccine Awareness Day, an annual opportunity to call attention to progress in vaccine science and the need for further research on both preventive vaccines that stop new HIV infections and therapeutic vaccines that help the immune system fight existing infection.

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BHIVA 2015: HIV+ Men on Antiretroviral Treatment Have Undetectable Rectal Viral Load

A small study assessing the infectiousness of HIV-positive gay men taking antiretroviral therapy has found that all study participants had an undetectable viral load in the rectum, according to a presentation at the British HIV Association (BHIVA) conference last week in Brighton. Men who had rectal gonhorrea or chlamydia did not have detectable virus either, suggesting that concerns about sexually transmitted infections raising the risk of HIV transmission may be unfounded when people are taking effective HIV treatment.

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Study Suggests Truvada PrEP Should Start 1 Week Before and Continue 4 Weeks After Sex

An intensive pharmacokinetic study of tenofovir/emtricitabine (Truvada) for pre-exposure prophylaxis (PrEP) showed that blood and rectal drugs levels corresponding to high PrEP activity for men who have sex with men (MSM) are reached after about 1 week of daily dosing and appear to remain adequate for several days after the last pill, according to a report in the March 1 edition of Clinical Infectious Diseases. It is not known, however, whether this dosing schedule would work as well for women or other groups.

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CROI 2015: Daily PrEP Leads to Better Adherence and Protective Drug Levels in Women

HIV-negative African women assigned to take once-daily Truvada for HIV pre-exposure prophylaxis (PrEP) achieved better adherence than those assigned to take PrEP twice-weekly or before and after sex, according to findings from the HPTN 067 trial presented at the recent 2015 Conference on Retroviruses and Opportunistic Infections (CROI) in Seattle.

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