Baker, J V; Neuhaus, J; Duprez, D; Kuller, L H; Tracy, R; Belloso, W H; De Wit, S; Drummond, F; Lane, H C; Ledergerber, B; Lundgren, J; Nixon, D E; Paton, N I; Neaton, J D (2011). Changes in inflammatory and coagulation biomarkers: a randomized comparison of immediate versus deferred antiretroviral therapy in patients with HIV infection. JAIDS Journal of Acquired Immune Deficiency Syndromes, 56(1):36-43.
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OBJECTIVES:: Among a subgroup of participants in the Strategies for Management of Antiretroviral Therapy (SMART) Trial that were naïve to antiretroviral therapy (ART) or off ART (6 months or longer) at study entry, risk of AIDS and serious non-AIDS events were increased for participants who deferred ART compared with those randomized to (re)initiate ART immediately. Our objective was to determine whether ART initiation in this group reduced markers of inflammation and coagulation that have been associated with increased mortality risk in SMART. Changes in these biomarkers have been described after stopping ART, but not after starting ART in SMART. METHODS:: Stored specimens for 254 participants (126 drug conservation [DC] and 128 viral suppression [VS]) who were naïve to ART or off ART (6 months or longer) were analyzed for interleukin-6, high sensitivity C-reactive protein, and D-dimer at baseline and Months 2 and 6. RESULTS:: At Month 6, 62% of the VS group had HIV RNA less than 400 copies/mL and median CD4 count was 190 cells/mm higher than for the DC group (590 versus 400 cells/mm). Compared with DC, the VS group had 32% (95% confidence interval, 19%-43%) lower D-dimer levels at Month 6 (P < 0.001); differences were not significant for high sensitivity C-reactive protein or interleukin-6 levels. CONCLUSIONS:: In this randomized comparison of immediate versus delayed ART initiation, D-dimer, but not interleukin-6 and high sensitivity C-reactive protein, declined significantly after starting ART. Further studies are needed to determine whether improvements in D-dimer are associated with reduced risk of clinical disease and whether adjunct treatments used in combination with ART can reduce inflammation among individuals with HIV infection.
|Contributors:||SMART Study Group|
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||04 Faculty of Medicine > University Hospital Zurich > Clinic for Infectious Diseases|
|DDC:||610 Medicine & health|
|Deposited On:||17 Jan 2011 14:59|
|Last Modified:||27 Nov 2013 22:49|
|Publisher:||Lippincott Wiliams & Wilkins|
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