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2. Treatment during primary HIV infection does not lower viral set point but improves CD4 lymphocytes in an observational cohort.

Author

Koegl C, Wolf E, Hanhoff N, Jessen H, Schewe K, Rausch M, Goelz J, Goetzenich A, Knechten H, Jaeger H, Becker W, Becker-Boost I, Berzow D, Beiniek B, Brust J, Shcuster D, Dupke S, Fenske S, Gellermann HJ, Gippert R, Hartmann P, Hintsche B, Jaeger H, Jaegel-Guedes E, Jessen H, Gölz J, Koelzsch J, Helm EB, Knecht G, Knechten H, Lochet I, Gute P, Mauruschat S, Mauss S, Miasnikov V, Mosthaf FA, Rausch M, Freiwald M, Reuter B, Schalk HM, Schappert B, Schnaitmann E, Schneider I, Schüler-Maué W, Schuler C, Seidel T, Starke W, Ulmer A, Müller M, Weitner I, Schewe K, Zamani C, Hanmond A, Ross K, Bottlaender A, Hoffmann C, Dix A, Schneidewind A, and Lademann M

Subjects
Adolescent, Adult, Cohort Studies, Female, HIV Infections immunology, HIV Infections virology, HIV Seropositivity drug therapy, HIV Seropositivity immunology, HIV Seropositivity virology, Humans, Kaplan-Meier Estimate, Male, Middle Aged, Multicenter Studies as Topic, Outcome Assessment, Health Care methods, Outcome Assessment, Health Care statistics & numerical data, Proportional Hazards Models, Time Factors, Viral Load, Young Adult, Antiretroviral Therapy, Highly Active methods, CD4 Lymphocyte Count, HIV Infections drug therapy, HIV-1 drug effects
Abstract

Objective: To investigate if early treatment of primary HIV-1 infection (PHI) reduces viral set point and/or increases CD4 lymphocytes., Methods: Analysis of two prospective multi-centre PHI cohorts. HIV-1 RNA and CD4 lymphocytes in patients with transient treatment were compared to those in untreated patients. Time to CD4 lymphocyte decrease below 350/ microl after treatment stop or seroconversion was calculated using Kaplan-Meier and Cox-PH-regression analyses., Results: 156 cases of PHI were included, of which 100 had received transient HAART (median treatment time 9.5 months) and 56 remained untreated. Median viral load (563000 cop/ml vs 240000 cop/ml; p<0.001) and median CD4 lymphocyte (449/ microl vs. 613/ microl; p<0.01) differed significantly between treated and untreated patients. Median viral load was 38056 copies/ml in treated patients (12 months after treatment stop) and 52880 copies/ml in untreated patients (12 months after seroconversion; ns). Median CD4 lymphocyte change was +60/ microl vs. -86/ microl (p = 0.01). Median time until CD4 lymphocytes decreased to <350/ microl (including all patients with CD4 lymphocytes <500/ microl during seroconversion) was 20.7 months in treated patients after treatment stop and 8.3 months in untreated patents after seroconversion (p<0.01). Cox-PH analyses adjusting for baseline VL, CD4 lymphocytes, stage of early infection and symptoms confirmed these differences., Conclusions: Treatment during PHI did not lower viral set point. However, patients treated during seroconversion had an increase in CD4 lymphocytes, whereas untreated patients experienced a decrease in CD4 lymphocytes. Time until reaching CD4 lymphocytes <350/ microl was significantly shorter in untreated than in treated patients including patients with CD4 lymphocytes <500/ microl during seroconversion.

Published
2009
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