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International audience; Obesity develops in a substantial number of people initiating and maintaining modern antiretroviral therapy. The comorbidities associated with obesity make significant weight gain and metabolic changes a major consideration in clinical trials studying different regimens' potency and safety. It is as yet unclear what role individual antiretrovirals or classes play in weight gain but the issue is a complex one for clinical trial design, especially when deciding when "too much" weight has been gained, in a context where we do not yet know if switching to alternative regimens will slow, halt or reverse weight gain or metabolic changes. In addition, clinician and trial participant opinion on acceptable weight gain may differ. We offer preliminary guidance for discussion for future antiretroviral clinical trial design.

International audience; OBJECTIVES: The aim of this study was to evaluate the efficacy, safety, flexibility, and ease of handling and use of the Ped3CB-A 300 mL, the first ready-to-use multichamber parenteral nutrition (PN) system, with optional lipid bag activation, specially designed for administration to preterm infants. MATERIALS AND METHODS: In this prospective, open-label, multicenter, noncomparative, phase III clinical trial, preterm infants were treated with Ped3CB-A for 5 to 10 consecutive days. RESULTS: A total of 113 preterm infants were enrolled in the study and 97 (birth weight 1382 ± 520 g; gestational age 31.2 ± 2.5 weeks; postnatal age administration 5.6 ± 6.1 days) were included in the per protocol analysis accounting for 854 perfusion days. Double-chamber bag activation was used for 32 perfusion days. Macronutrient, electrolyte, and mineral supplements were primarily administered through a Y-line or directly in the activated bag. In all, 199 additions (mainly sodium, 95%) were made to the Ped3CB-A bags on 197 infusion days (23.1%) in 43 infants (44.3%). More than 1 of these nutrients was added to the bag on only 1 perfusion day. Mean and maximum parenteral nutrient intakes were 2.8 ± 0.7 and 3.6 ± 0.8 g amino acids per kilogram per day, and 80 ± 20 and 104 ± 22 kcal * kg(-1) * day(-1). Mean weight gain represented 10.0, 21.5, and 22. 6 g * kg(-1) * day(-1) according to age at inclusion (0-3, 4-7, or >7 days of life). A visual analog scale was completed and produced positive results. No adverse events were attributable to the design of the Ped3CB-A system. CONCLUSIONS: Ped3CB-A provides easy-to-use, well-balanced, and safe nutritional support. Nutritional intakes and weight gain were within the recent PN recommendations in preterm infants.