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ABSTRACT: Background
Numerous studies have shown that baseline drug resistance patterns may influence the outcome of antiretroviral therapy. Therefore, guidelines recommend drug resistance testing to guide the choice of initial regimen. In addition to optimizing individual patient management, these baseline resistance data enable transmitted drug resistance (TDR) to be surveyed for public health purposes. The SPREAD program systematically collects data to gain insight into TDR occurring in Europe since 2001.Methods
Demographic, clinical, and virological data from 4140 antiretroviral-naive human immunodeficiency virus (HIV)-infected individuals from 26 countries who were newly diagnosed between 2008 and 2010 were analyzed. Evidence of TDR was defined using the WHO list for surveillance of drug resistance mutations. Prevalence of TDR was assessed over time by comparing the results to SPREAD data from 2002 to 2007. Baseline susceptibility to antiretroviral drugs was predicted using the Stanford HIVdb program version 7.0.Results
The overall prevalence of TDR did not change significantly over time and was 8.3% (95% confidence interval, 7.2%-9.5%) in 2008-2010. The most frequent indicators of TDR were nucleoside reverse transcriptase inhibitor (NRTI) mutations (4.5%), followed by nonnucleoside reverse transcriptase inhibitor (NNRTI) mutations (2.9%) and protease inhibitor mutations (2.0%). Baseline mutations were most predictive of reduced susceptibility to initial NNRTI-based regimens: 4.5% and 6.5% of patient isolates were predicted to have resistance to regimens containing efavirenz or rilpivirine, respectively, independent of current NRTI backbones.Conclusions
Although TDR was highest for NRTIs, the impact of baseline drug resistance patterns on susceptibility was largest for NNRTIs. The prevalence of TDR assessed by epidemiological surveys does not clearly indicate to what degree susceptibility to different drug classes is affected.
SUBMITTER: Hofstra LM
PROVIDER: S-EPMC4741360 | biostudies-literature | 2016 Mar
REPOSITORIES: biostudies-literature
Hofstra L Marije LM Sauvageot Nicolas N Albert Jan J Alexiev Ivailo I Garcia Federico F Struck Daniel D Van de Vijver David A M C DAMC Åsjö Birgitta B Beshkov Danail D Coughlan Suzie S Descamps Diane D Griskevicius Algirdas A Hamouda Osamah O Horban Andrzej A Van Kasteren Marjo M Kolupajeva Tatjana T Kostrikis Leondios G LG Liitsola Kirsi K Linka Marek M Mor Orna O Nielsen Claus C Otelea Dan D Paraskevis Dimitrios D Paredes Roger R Poljak Mario M Puchhammer-Stöckl Elisabeth E Sönnerborg Anders A Staneková Danica D Stanojevic Maja M Van Laethem Kristel K Zazzi Maurizio M Zidovec Lepej Snjezana S Boucher Charles A B CAB Schmit Jean-Claude JC Wensing Annemarie M J AMJ Puchhammer-Stockl E E Sarcletti M M Schmied B B Geit M M Balluch G G Vandamme A-M AM Vercauteren J J Derdelinckx I I Sasse A A Bogaert M M Ceunen H H De Roo A A De Wit S S Echahidi F F Fransen K K Goffard J-C JC Goubau P P Goudeseune E E Yombi J-C JC Lacor P P Liesnard C C Moutschen M M Pierard D D Rens R R Schrooten Y Y Vaira D D Vandekerckhove L P R LPR Van den Heuvel A A Van Der Gucht B B Van Ranst M M Van Wijngaerden E E Vandercam B B Vekemans M M Verhofstede C C Clumeck N N Van Laethem K K Beshkov D D Alexiev I I Lepej S Zidovec SZ Begovac J J Kostrikis L L Demetriades I I Kousiappa I I Demetriou V V Hezka J J Linka M M Maly M M Machala L L Nielsen C C Jørgensen L B LB Gerstoft J J Mathiesen L L Pedersen C C Nielsen H H Laursen A A Kvinesdal B B Liitsola K K Ristola M M Suni J J Sutinen J J Descamps D D Assoumou L L Castor G G Grude M M Flandre P P Storto A A Hamouda O O Kücherer C C Berg T T Braun P P Poggensee G G Däumer M M Eberle J J Heiken H H Kaiser R R Knechten H H Korn K K Müller H H Neifer S S Schmidt B B Walter H H Gunsenheimer-Bartmeyer B B Harrer T T Paraskevis D D Hatzakis A A Zavitsanou A A Vassilakis A A Lazanas M M Chini M M Lioni A A Sakka V V Kourkounti S S Paparizos V V Antoniadou A A Papadopoulos A A Poulakou G G Katsarolis I I Protopapas K K Chryssos G G Drimis S S Gargalianos P P Xylomenos G G Lourida G G Psichogiou M M Daikos G L GL Sipsas N V NV Kontos A A Gamaletsou M N MN Koratzanis G G Sambatakou H H Mariolis H H Skoutelis A A Papastamopoulos V V Georgiou O O Panagopoulos P P Maltezos E E Coughlan S S De Gascun C C Byrne C C Duffy M M Bergin C C Reidy D D Farrell G G Lambert J J O'Connor E E Rochford A A Low J J Coakely P P O'Dea S S Hall W W Mor O O Levi I I Chemtob D D Grossman Z Z Zazzi M M de Luca A A Balotta C C Riva C C Mussini C C Caramma I I Capetti A A Colombo M C MC Rossi C C Prati F F Tramuto F F Vitale F F Ciccozzi M M Angarano G G Rezza G G Kolupajeva T T Vasins O O Griskevicius A A Lipnickiene V V Schmit J C JC Struck D D Sauvageot N N Hemmer R R Arendt V V Michaux C C Staub T T Sequin-Devaux C C Wensing A M J AMJ Boucher C A B CAB van de Vijver D A M C DAMC van Kessel A A van Bentum P H M PHM Brinkman K K Connell B J BJ van der Ende M E ME Hoepelman I M IM van Kasteren M M Kuipers M M Langebeek N N Richter C C Santegoets R M W J RMWJ Schrijnders-Gudde L L Schuurman R R van de Ven B J M BJM Åsjö B B Kran A-M Bakken AB Ormaasen V V Aavitsland P P Horban A A Stanczak J J JJ Stanczak G P GP Firlag-Burkacka E E Wiercinska-Drapalo A A Jablonowska E E Maolepsza E E Leszczyszyn-Pynka M M Szata W W Camacho R R Palma C C Borges F F Paixão T T Duque V V Araújo F F Otelea D D Paraschiv S S Tudor A M AM Cernat R R Chiriac C C Dumitrescu F F Prisecariu L J LJ Stanojevic M M Jevtovic Dj D Salemovic D D Stanekova D D Habekova M M Chabadová Z Z Drobkova T T Bukovinova P P Shunnar A A Truska P P Poljak M M Lunar M M Babic D D Tomazic J J Vidmar L L Vovko T T Karner P P Garcia F F Paredes R R Monge S S Moreno S S Del Amo J J Asensi V V Sirvent J L JL de Mendoza C C Delgado R R Gutiérrez F F Berenguer J J Garcia-Bujalance S S Stella N N de Los Santos I I Blanco J R JR Dalmau D D Rivero M M Segura F F Elías M J Pérez MJP Alvarez M M Chueca N N Rodríguez-Martín C C Vidal C C Palomares J C JC Viciana I I Viciana P P Cordoba J J Aguilera A A Domingo P P Galindo M J MJ Miralles C C Del Pozo M A MA Ribera E E Iribarren J A JA Ruiz L L de la Torre J J Vidal F F Clotet B B Albert J J Heidarian A A Aperia-Peipke K K Axelsson M M Mild M M Karlsson A A Sönnerborg A A Thalme A A Navér L L Bratt G G Karlsson A A Blaxhult A A Gisslén M M Svennerholm B B Bergbrant I I Björkman P P Säll C C Mellgren Å Å Lindholm A A Kuylenstierna N N Montelius R R Azimi F F Johansson B B Carlsson M M Johansson E E Ljungberg B B Ekvall H H Strand A A Mäkitalo S S Öberg S S Holmblad P P Höfer M M Holmberg H H Josefson P P Ryding U U
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 20151129 5
<h4>Background</h4>Numerous studies have shown that baseline drug resistance patterns may influence the outcome of antiretroviral therapy. Therefore, guidelines recommend drug resistance testing to guide the choice of initial regimen. In addition to optimizing individual patient management, these baseline resistance data enable transmitted drug resistance (TDR) to be surveyed for public health purposes. The SPREAD program systematically collects data to gain insight into TDR occurring in Europe ...[more]