Menzaghi, Barbara and Ricci, Elena and Carenzi, Laura and Parruti, Giustino and Orofino, Gianfranco and Gustavigna, M. and Madeddu, Giordano and Maggi, Paolo and Di Biagio, Antonio and Corsi, P. and Penco, Giovanni and De Socio, Giuseppe Vittorio Luigi and Martinelli, Canio and Vichi, Francesca and Celesia, Maurizio and Franzetti, Marco and Grosso, Carmela and Molteni, Chiara and Bonfanti, Paolo and Quirino, Tiziana (2013) Safety and durability in a cohort of HIV-1 positive patients treated with once and twice daily darunavir-based therapy (SCOLTA project). Biomedicine & Pharmacotherapy, Vol. 67 (4), p. 293-298. eISSN 1950-6007. Article.
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Objective: To evaluate safety and durability of once-daily and twice-daily darunavir/ritonavir (DRV/r)-based treatment in HIV patients in clinical practice.
Methods: The Surveillance Cohort Long-Term Toxicity Antiretrovirals (SCOLTA) project is a prospective, observational, multicenter cohort created to assess the incidence of adverse events in patients receiving new antiretroviral drugs. Twenty-five Italian infectious diseases centers enroll patients and collect their data through this on-line system. Periodical evaluations of these patients, including physical examination and laboratory tests, were performed at baseline and every 6 months.
Results: Four hundred and twenty-nine patients were enrolled since May 2006. Eighty-five patients (19.8%) were prescribed once-daily DRV/r; 31 of them were treatment-naïve (36.5%). Among 54 (63.5%) treatment-experienced patients, 21 (38.9%) had undetectable viral load and started once-daily DRV/r as a simplification regimen. Patients on twice-daily regimen were older, more frequently lipodystrophic, HCV-coinfected, and in CDC stage C. In the following 24 months of follow-up, the viral load steadily decreased as well as the CD4 cell count rose. The reason for discontinuation did not significantly differ between groups. Mean blood glucose (BG) change from baseline did not show significant difference between groups, as well as high density lipoprotein cholesterol (HDL-C), triglycerides (TGL) and alanine transaminase (ALT). The survival curve shows that patients in the once-daily regimen withdrew treatment more frequently than those on twice-daily regimen (Log Rank Chi2P = 0.009).
Conclusion: Our study showed that DRV/r administrated both once daily or twice daily was safe and well tolerated with few discontinuations due to adverse events.
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