OBJECTIVE: To determine the incidence and determinants for discontinuation of initial highly active antiretroviral therapy (HAART). DESIGN: In this retrospective follow-up study from hospital files and pharmacy dispensing data, a standard dataset was collected including patient characteristics, therapy characteristics, and HIV-monitoring parameters (e.g., CD4+ lymphocyte counts, viral load determinations). Kaplan-Meier estimates of the cumulative probability of discontinuation of initial HAART were calculated. Cox proportional hazard analysis was used to identify determinants for discontinuation of initial HAART. PATIENTS: All patients starting HAART (n = 99) during June 1996 to February 1997 at our regional AIDS center. MAIN OUTCOME MEASURES: Incidence and determinants for discontinuation of HAART. RESULTS: During the mean follow-up of 450+/-10 days, 27 patients switched initial HAART, 3 patients stopped any antiretroviral therapy. Reasons for switching were increasing viral load (18x), insufficient decrease of viral load (3x), and adverse events (6x). Nonnaivete for antiretroviral therapy and a lower CD4+ lymphocyte count at start were identified as determinants for discontinuation of initial HAART. CONCLUSIONS: The overall incidence density for discontinuation of initial HAART was 25 per 100 patients/year. The main reason for switching was an increasing viral load. CD4+ lymphocyte counts at start and nonnaivete for antiretroviral therapy were identified as determinants for discontinuation.
OBJECTIVE: To determine the incidence and determinants for discontinuation of initial highly active antiretroviral therapy (HAART). DESIGN: In this retrospective follow-up study from hospital files and pharmacy dispensing data, a standard dataset was collected including patient characteristics, therapy characteristics, and HIV-monitoring parameters (e.g., CD4+ lymphocyte counts, viral load determinations). Kaplan-Meier estimates of the cumulative probability of discontinuation of initial HAART were calculated. Cox proportional hazard analysis was used to identify determinants for discontinuation of initial HAART. PATIENTS: All patients starting HAART (n = 99) during June 1996 to February 1997 at our regional AIDS center. MAIN OUTCOME MEASURES: Incidence and determinants for discontinuation of HAART. RESULTS: During the mean follow-up of 450+/-10 days, 27 patients switched initial HAART, 3 patients stopped any antiretroviral therapy. Reasons for switching were increasing viral load (18x), insufficient decrease of viral load (3x), and adverse events (6x). Nonnaivete for antiretroviral therapy and a lower CD4+ lymphocyte count at start were identified as determinants for discontinuation of initial HAART. CONCLUSIONS: The overall incidence density for discontinuation of initial HAART was 25 per 100 patients/year. The main reason for switching was an increasing viral load. CD4+ lymphocyte counts at start and nonnaivete for antiretroviral therapy were identified as determinants for discontinuation.
Authors: H Samji; T E Taha; D Moore; A N Burchell; A Cescon; C Cooper; J M Raboud; M B Klein; M R Loutfy; N Machouf; C M Tsoukas; J S G Montaner; R S Hogg Journal: HIV Med Date: 2014-09-01 Impact factor: 3.180
Authors: Alejandro Gonzalez-Serna; Keith Chan; Benita Yip; William Chau; Rachel McGovern; Hasina Samji; Viviane Dias Lima; Robert S Hogg; Richard Harrigan Journal: J Antimicrob Chemother Date: 2014-04-15 Impact factor: 5.790
Authors: Chara E Rydzak; Kara L Cotich; Paul E Sax; Heather E Hsu; Bingxia Wang; Elena Losina; Kenneth A Freedberg; Milton C Weinstein; Sue J Goldie Journal: PLoS One Date: 2010-09-09 Impact factor: 3.240