Clinical Implications of Resistance Session Posters

Risk of development of drug resistance in patients starting antiretroviral therapy with three or more drugs in routine clinical practice
AN Phillips

Absence of selection of resistant variants during the early phase of therapy with lopinavir/ritonavir (LPV/r) and efavirenz (EFV) (BIKS study)
V Ferré

Kinetics of the plasma viral load and resistance mutations in naive patients after initiation of NNRTI or boosted PI-containing HAART
C Torti

Estimation of phenotypic clinical cutoffs for VirtualPhenotype. through meta analyses of clinical trial and cohort data
LT Bacheler

Does drug class multi-resistance affect survival? Analysis from a cohort of HIV patients who experienced treatment failure

M Zaccarelli

Previously unclassified mutations at positions associated with antiretroviral drug resistance
SY Rhee

Viral load in patients failing therapy: is it the type of mutation or the total number of mutations that matter?
N Machouf

Risk of developing selected de novo resistance mutations during structured therapy interruption (STI) in chronic HIV-1 infection
M Arnedo

Baseline predictors and virological outcome in subjects developing mutations during intermittent HAART
L Palmisano

Treatment interruption in patients with multiple failures to ARV therapy: can the controversy be solved?
D Costagliola

Patterns of CD4 and HIV-1 RNA change during structured treatment interruption in patients with multidrug-resistant HIV (CPCRA 064 MDR-HIV Study)
J Lawrence

Determinants of replication capacity (RC) in HIV-1 isolates from antiretroviral (ART)-experienced adults failing a PI-based regimen, and relationship of RC with HIV-1 RNA and CD4 counts
R Haubrich

Impact of three or four protease mutations at codons 33, 82, 84 and 90 on 2 week virological responses to tipranavir, lopinavir, amprenavir and saquinavir all boosted by ritonavir in Phase 2B trial BI 1182.51
DL Mayers

Minor protease inhibitor resistant variants, even at very low level, can drive the failure resistance mutations profiles of subsequent protease inhibitor-based regimen
V Calvez

Virological response following switch to atazanavir/ritonavir in relation to baseline genotypic resistance pattern
S Yerly

Reverse-transcriptase mutation M184V delays the selection of thymidine-analogue mutations in children infected with subtype-C
HIV-1
Z Grossman

Genotypic reverse transcriptase evolution in antiretroviral-experienced patients receiving tenofovir DF-containing regimens
B Masquelier

Clinical and genotypic correlates of K65R mutation in an unselected cohort of HIV-infected persons naive for tenofovir
A Antinori

Selection of the K65R mutation in plasma and PBMCs of HIV-2-infected patients receiving tenofovir-containing regimen
D Descamps

Development of resistance mutations in patients receiving salvage therapy with tenofovir
B Conway

Dynamic of selection of the K65R and M184V/I mutations in patients enrolled in Tonus trial
D Descamps

Early virological failure and occurence of resistance in naive patients receiving tenofovir, didanosine and efavirenz
D Podzamczer

Baseline genotypic analysis of treatment-naive patients taking tenofovir DF (TDF) or stavudine (d4T) in combination with lamivudine (3TC) and efavirenz (EFV)
MD Miller

Pre-existing L74V is a risk factor for virological non-response and development of K65R in patients taking tenofovir DF (TDF)
MD Miller

Impact of HIV resistance mutations, drug resistance and viral fitness on antiviral activity of tenofovir/abacavir/lamivudine in the ESS30009 study
LL Ross

Persistance of nevirapine-resistant virus and pharmacokinetic analysis in women who received intrapartum NVP associated to a short course of zidovudine (ZDV) to prevent perinatal HIV-1 transmission: the Ditrame Plus ANRS 1201/02 Study, Abidjan, Côte d'Ivoire
ML Chaix

The V106M mutation in treatment failures from a randomized controlled trial of lamivudine and stavudine, with nevirapine and/or efavirenz
DB Hall

Substitutions within HIV gp41 amino acids 36-45 are identified as the primary determinants for loss of in vitro susceptibility to enfuvirtide: results of data mining analyses of genotypic changes in gp41 in TORO 1 and TORO 2 that associate with changes in phenotypic susceptibility to enfuvirtide
C Su

Low levels of adherence confers greater risk for non-nucleoside reverse transcriptase inhibitor (NNRTI) resistance than protease-inhibitor (PI) resistance
DR Bangsberg

A meta-analysis of the virological efficacy of regimens containing four versus three active antiretroviral agents as initial therapy for HIV-1 infection
A Hill

Analyses of virological response and enfuvirtide resistance through 48 weeks in the TORO 1 and 2 studies
T Melby

Rate of virological failure and resistance profiles in patients treated with triple nucleoside regimens
V Soriano