alexa Short communication: Use of raltegravir in late-presenting HIV-infected pregnant women.
Infectious Diseases

Infectious Diseases

Journal of AIDS & Clinical Research

Author(s): Nbrega I, Travassos AG, Haguihara T, Amorim F, Brites C, Nbrega I, Travassos AG, Haguihara T, Amorim F, Brites C

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Abstract The risk of HIV-1 mother-to-child transmission (MTCT) is clearly correlated with the maternal HIV cell-free viral load (VL) at delivery. Preventing MTCT in late-presenting (after 28 weeks) HIV-infected pregnant women remains a clinical challenge, and ensuring a rapid decrease of maternal VL is an important preventive strategy. Raltegravir (RGV) has a higher first and second phase viral decay rate, has a high placental transfer, with a potential preloading effect for neonate, and demonstrates effective accumulation in cervicovaginal secretions. We report 14 cases in which RGV was used late in pregnancy for HIV-1 MTCT prophylaxis. All women were RGV naive and the prophylaxis regimens included RGV plus at least two other antiretroviral agents. At RGV initiation, the median gestational age was 36 weeks (range 34-38) and the median maternal plasma HIV-1 RNA viral load was 35,364 copies/ml (range 636-391,535). At delivery, the median gestational age was 38 weeks (range 37-40). The median exposure time to RGV was 17 days (range 7-32), with a mean maternal VL decay of 2.6 log. At delivery, seven women had undetectable (<50 copies/ml) VL, four had between 64 and 457 copies/ml, and in three VL was not available. All but one infant's HIV-RNA tests were negative at 1 and 3 months (one case of in utero MTCT). Raltegravir-containing antiretroviral regimens induced a rapid HIV-RNA decline in maternal VL at delivery, and were safe and effective in preventing MTCT for late-presenting, HIV-infected women.
This article was published in AIDS Res Hum Retroviruses and referenced in Journal of AIDS & Clinical Research

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