HIV transmission and 24-month survival in a randomized trial of HAART to prevent MTCT during pregnancy and breastfeeding in Botswana.
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Author list: Shapiro RL, Kitch D, Ogwu A, Hughes MD, Lockman S, Powis K, Souda S, Moffat C, Moyo S, McIntosh K, van Widenfelt E, Zwerski S, Mazhani L, Makhema J, Essex M
Publisher: Lippincott, Williams & Wilkins
Publication year: 2013
Journal: AIDS (0269-9370)
Journal acronym: AIDS
Volume number: 27
Issue number: 12
Start page: 1911
End page: 20
Number of pages: -1890
ISSN: 0269-9370
eISSN: 1473-5571
Languages: English-Great Britain (EN-GB)
Abstract
OBJECTIVES\nDESIGN\nMETHODS\nRESULTS\nCONCLUSION\nHAART for prevention of mother-to-child HIV transmission (MTCT) may impact long-term survival of women and children.\nRandomized clinical trial.\nHIV-infected pregnant women with CD4+ cell count at least 200 cells/µl were randomly assigned to abacavir, zidovudine, lamivudine (arm A) or lopinavir–ritonavir, zidovudine–lamivudine (arm B) from week 26 to 34 gestation through planned weaning by 6 months postpartum. Women with baseline CD4+ cell count less than 200 cells/µl received nevirapine–zidovudine–lamivudine indefinitely (Obs arm), as did randomized women later qualifying for treatment.\nAmong 560 randomized and 170 observational women enrolled, there were 14 deaths (1.9%) – one antenatally (Obs), three from delivery to 6 months postpartum (1 arm A, 2 Obs), and 10 from 6 to 24 months postpartum (5 arm A, 3 arm B, 2 Obs). Time to death or CD4+ cell count below 200 cells/µl was shorter in arm A vs. B (P = 0.03). Of the 709 live-born children, 97% breastfed for a median of 5.8 months. Of 37 (5.2%) deaths by 24 months, nine were before breastfeeding initiated (3 arm A, 2 arm B, 4 Obs); six while breastfeeding (1 arm A, 2 arm B, 3 Obs); and 22 after weaning (9 arm A, 11 arm B, 2 Obs). Only eight children (1.1%) were HIV-infected at 24 months (6 arm A, 1 arm B, 1 Obs), all before 6 months.\nLow MTCT was maintained through extended follow-up in all arms. Disease progression appeared slower after discontinuing protease inhibitor-based HAART, but a concerning number of maternal deaths occurred after stopping either regimen. Strategies to improve maternal and child survival in the postintervention period are required.
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