Feb, 2015

ART With Weekends Off Is Noninferior to Continuous ART in Young People on EFV+2NRTI


Authors: Karina M. Butler on behalf of the BREATHER trial team

Published in: CROI 2015, Seattle, USA, Feb 23 -26 2015.

Abstract For HIV-1 infected young people (YP) facing lifelong ART, short cycle therapy (SCT) with long-acting agents offers the potential for drug-free weekends, less toxicity and better adherence, as well as cost savings.



Feb, 2015

Long-term consequences of planned treatment interruption in HIV-1-infected children.


Authors: Freguja R, De Rossi A, Paulson H, Klein N, Del Bianco P, Compagnucci A, Saidi Y, Giaquinto C, Harper L, Gibb D, on behalf of the PENTA Steering Committee

Published in: CROI 2015, Seattle, USA, Feb 23 -26 2015. Poster presentation abstract 919



Feb, 2015

Pharmacokinetics of total and unbound darunavir in HIV-1-infected pregnant women


Authors: Colbers A, Molto J, Ivanovic J, et al. PANNA Network

Published in: J Antimicrob Chemother. 2015; 70(2):534-542

Objectives To describe the pharmacokinetics of darunavir in pregnant HIV-infected women in the third trimester and post-partum.

Patients and Methods This was a non-randomized, open-label, multicentre, Phase IV study in HIV-infected pregnant women recruited from HIV treatment centres in Europe. HIV-infected pregnant women treated with darunavir (800/100 mg once daily or 600/100 mg twice daily) as part of their combination ART were included. Pharmacokinetic curves were recorded in the third trimester and post-partum. A cord blood sample and maternal sample were collected. The study is registered at under number NCT00825929.

Results Twenty-four women were included in the analysis [darunavir/ritonavir: 600/100 mg twice daily (n=6); 800/100 mg once daily (n=17); and 600/100 mg once daily (n=1)]. Geometric mean ratios of third trimester versus post-partum (90% CI) were 0.78 (0.60-1.00) for total darunavir AUC0-tau after 600/100 mg twice-daily dosing and 0.67 (0.56-0.82) for total darunavir AUC0-tau after 800/100 mg once-daily dosing. The unbound fraction of darunavir was not different during pregnancy (12%) compared with post-partum (10%). The median (range) ratio of darunavir cord blood/maternal blood was 0.13 (0.08-0.35). Viral load close to delivery was <300 copies/mL in all but two patients. All children were tested HIV-negative and no congenital abnormalities were reported.

Conclusions Darunavir AUC and Cmax were substantially decreased in pregnancy for both darunavir/ritonavir regimens. This decrease in exposure did not result in mother-to-child transmission. For antiretroviral-naive patients, who are adherent, take darunavir with food and are not using concomitant medication reducing darunavir concentrations, 800/100 mg of darunavir/ritonavir once daily is adequate in pregnancy. For all other patients 600/100 mg of darunavir/ritonavir twice daily is recommended during pregnancy.


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