Objectives To assess the attitudes and opinions about generic antiretroviral drugs (ARVs) and single-tablet regimen (STR) de-simplification among physicians prescribing HIV treatment in the cohort of the Spanish HIV/AIDS Research Network (CoRIS). Methods An online questionnaire with 27 structured questions was sent to all physicians (n = 199) who prescribed ARVs among the 45 centres participating in the cohort. Results A total of 169 (84.9%) physicians answered the questionnaire. Only 4.1% of the physicians would never prescribe generic ARVs, but 53.3% would not prescribe them if the number of pills per day increased and 89.3% would not prescribe them if the number of doses per day increased. However, 84.0% of the physicians agreed to prescribe generic ARVs if doing so would decrease costs for the public healthcare system. The percentages of physicians stating that generic ARVs (compared with branded ones) would be associated with worse adherence, more adverse effects or more probability of virological failure, provided that the number of pills and doses per day would not change, were low: 0.6%, 7.7% and 3.6%, respectively. However, these percentages were much higher if the generic ARV entailed breaking an STR: 63.9%, 18.9% and 42.0%, respectively. Most physicians stated that they needed more information about the effectiveness and safety of generic ARVs and the price difference compared with their branded equivalents. Conclusions Although most physicians were confident about prescribing generic ARVs, the majority had strong concerns about de-simplifying STR, and they also needed more information about generic drugs.
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Objectives We compared 48 week effectiveness and safety of first-line antiretroviral regimens. Methods We analysed HIV treatment-naive adults from the Cohort of the Spanish HIV/AIDS Research Network (CoRIS) starting the most commonly used antiretroviral regimens from 2014 to 2018. We used multivariable regression models to assess the impact of initial regimen on: (i) viral suppression (VS) (viral load <50 copies/mL); (ii) change in CD4 cell count; (iii) CD4/CD8 normalization (>0.4 and >1); (iv) CD4 percentage normalization (>29%); (v) multiple T-cell marker recovery (MTMR: CD4 > 500 cells/mm3 plus CD4 percentage >29% plus CD4/CD8 > 1); (vi) lipid, creatinine and transaminase changes; and (vii) discontinuations due to adverse events (AE). Results Among 3945 individuals analysed, the most frequently prescribed regimens were ABC/3TC/DTG (34.0%), TAF/FTC/EVG/CBT (17.2%), TDF/FTC + DTG (11.9%), TDF/FTC/EVG/CBT (11.7%), TDF/FTC/RPV (11.5%), TDF/FTC + bDRV (8.3%) and TDF/FTC + RAL (5.3%). At 48 weeks, 89.7% of individuals achieved VS with no significant differences by initial regimen. CD4 mean increase was 257.8 (249.3; 266.2) cells/mm3, and it was lower with TAF/FTC/EVG/CBT and TDF/FTC/RPV compared with ABC/3TC/DTG. CD4 percentage normalization was less likely with TAF/FTC/EVG/CBT, and MTMR was less likely with TAF/FTC/EVG/CBT and TDF/FTC + RAL. The proportion of discontinuations due to AE was higher with TDF/FTC + bDRV (9.7%), followed by TDF/FTC/EVG/CBT (9.5%) and TDF/FTC + DTG (7.9%). Compared with ABC/3TC/DTG, cholesterol and LDL mean increases were higher with TAF/FTC/EVG/CBT and lower with TDF/FTC + DTG, TDF/FTC/RPV and TDF/FTC + RAL. Higher mean increases in triglycerides were significantly associated with TAF/FTC/EVG/CBT. Regimens containing DTG showed higher creatinine increases. Conclusions The significantly greater immunological response and safety of some combinations may be useful for making decisions when initiating treatment.
ObjectivesThe aim of this study was to evaluate adherence to the recommendations of the Spanish guidelines for the initial assessment of patients with HIV infection in the multicentre Cohort of the Spanish HIV/AIDS Network (CoRIS) during the years 2004–2017.MethodsWe calculated the percentage of patients who had each of 11 clinical and analytical recommended examinations performed in their initial evaluation. We evaluated the factors associated with not performing each examination with multivariable logistic regression models.ResultsWe included 13 612 patients in the study. In the initial assessment, CD4 count and viral load were determined in more than 98.0% of the patients. Serologies for hepatitis A, B and C and syphilis were determined in 55.8%, 66.4%, 89.8% and 81.7% of the patients, respectively. Total cholesterol and creatinine were determined in 78.7% and 78.9% of the patients, respectively. The lowest proportions of examinations were observed for blood pressure, smoking status and latent tuberculosis screening, which were performed in 43.2%, 50.6% and 53.9% of the patients, respectively. Injecting drug users and heterosexual patients (compared to men who have sex with men) and patients with a lower educational level had a higher risk of having an incomplete initial assessment for a substantial number of examinations. Latent tuberculosis screening was less likely in patients with CD4 counts < 200 cells/µL.ConclusionsThe initial assessment of HIV‐infected patients is suboptimal for the evaluation of cardiovascular risk, smoking status, screening of syphilis and viral hepatitis, and diagnosis of latent tuberculosis: adherence to the guidelines was low for these examinations.
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