Background: Highly Active Antiretroviral Therapy (HAART) for HIV infection and Direct-Acting Antivirals (DAA) for HCV infection currently represent the main treatment options for HIV/HCV co-infected patients. However, HAART has been associated with increased lipids. This study aimed to evaluate lipid profile changes after the DAA cycle in HIV/HCV co-infected patients undergoing HAART/DAA therapy. Methods: A prospective, longitudinal, observational study among HIV/HCV co-infected patients undergoing HAART/DAA treatment was conducted at the Infectious Diseases Unit of the University Hospital of Salerno. Inclusion criteria were age > 18 years, written informed consent, completion of the DAA cycle, and virologic suppression on HAART. Changes in the lipid profile were analyzed from baseline during and after DAA therapy at 12, 24, and 48 weeks after the sustained virologic response (SVR). A t-test was used to compare continuous variables. An analysis of variance was performed for each antiretroviral drug and genotype. Results: Fifty-four HIV/HCV patients (men/women n. 34/20 [68/32%], median age 56 years), all naïve to HCV therapy, were enrolled. HCV infection was caused by genotype 1 in 55% of cases and by genotype 3 in 29%. An increase in total cholesterol was recorded after the DAA treatment (from 165.03 ± 46.5 to 184.7 ± 44.9 mg/dL, p < 0.0001), after 12, 24, and 48 weeks, and in LDL-C at 24 weeks follow-up (at baseline 86.7 ± 34 mg/dL to 103.4 ± 41.38 mg/dL, p < 0.0001). Conclusions: Changes in the lipid profile after combined DAA/HAART treatment represent an important prognostic index. Further evaluation of cardiovascular-associated risk is necessary to implement appropriate prevention strategies.
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