A Randomised Trial to Evaluate the Antiviral Efficacy and Safety of Treatment With 500 mg Tipranavir (TPV) Plus 100 mg or 200 mg Ritonavir (RTV) p.o. BID in Comparison to 400 mg Lopinavir (LPV) Plus 100 mg RTV p.o. BID in Combination With Standard Background Regimen in ARV Therapy naïve Patients.

Boehringer Ingelheim Investigational Site, BsAs

Fundacion Huesped, Buenos Aires

Hospital de Agudos Teodoro Alvarez, Buenos Aires

Hospital Posadas, Haedo

Boehringer Ingelheim Investigational Site, Darlinghurst

St Vincents Hospital;, Darlinghurst

Boehringer Ingelheim Investigational Site, Liverpool

Boehringer Ingelheim Investigational Site, Surry Hills

Boehringer Ingelheim Investigational Site, Carlton

Alfred Hospital, Melbourne

Boehringer Ingelheim Investigational Site, South Yarra

Unidade de Pesquisa Clínica (UPC) - AIDS, Campinas - Sp

Boehringer Ingelheim Investigational Site, Curitiba - PR

Boehringer Ingelheim Investigational Site, Manguinhos - Rio de Janeiro - RJ

Instituto de Crianca / Hospital das Clínicas-FMUSP, Mooca / São Paulo

Hospital Geral de Nova Iguaçu - Ministério da Saúde, Nova Iguaçu - RJ

Universidade Federal do Rio de Janeiro, Rio de Janeiro - RJ

Hospital Dia, Sacoma - São Paulo

Universidade Federal da Bahia-Unidade Docente Assistencial d, Salvador - BA

Boehringer Ingelheim Investigational Site, Santos - Sp

Hospital do Servidor Público Estadual de São Paulo, São Paulo - Sp

I.I. Emilio Ribas - Moléstias Infecciosas, São Paulo - SP

Instituto de Infectologia Emílio Ribas, São Paulo - SP

UNIFESP/ Hospital São Paulo- Univers. Federal de São Paulo, São Paulo - Sp

Centro de Referência e Treinamento - DST/AIDS, Vila Mariana - Sao Paulo

Downtown Infectious Diseases Clinic, Vancouver

Boehringer Ingelheim Investigational Site, Winnipeg

McMaster University Medical Centre, Hamilton

The Ottawa Hospital Riverside Campus, Ottawa

Canadian Immunodeficiency Research Collaborative Inc., Toronto

St. Michael's Hospital, Toronto

Sunnybrook & Woman's College Health Science Centre, Toronto

Toronto General Hospital, Toronto

Boehringer Ingelheim Investigational Site, Whitby

Montreal General Hospital - McGill University Health Centre, Monteal

Boehringer Ingelheim Investigational Site, Montreal

Montreal Chest Institute, McGill University Health Centre, Montreal

Boehringer Ingelheim Investigational Site, Bogotá

Hôpital Jean Verdier, Bondy

Hôpital Bocage, Dijon

Hôpital Albert Michallon, La Tronche

Hop Hôtel Dieu, Lyon

Hôpital Gui de Chauliac, Montpellier

Hôpital Saint Antoine, Paris

Hôpital Bellevue, Saint-Etienne

Epimed GmbH, Berlin

Klinikum der Ruhr-Universität Bochum, Bochum

Universitätsklinik Köln, Cologne

Boehringer Ingelheim Investigational Site, Düsseldorf

Universitätsklinikum Düsseldorf, Düsseldorf

Universitätsklinikum Essen, Essen

ifi Studien und Projekte GbR, Hamburg

Medizinische Poliklinik, München

Hospital de Especialidades no. 25, Col. Morelos, Monterrey, N. L.

Hospital Juan I. Menchaca IMSS, Col. Villaseñor, Guadalajara, Jal.

Hospital Lopez Mateos, México

Centre for AIDS Diagnostics and Therapy, Chorzów

Medical Academy of Szczecin, Szczecin

Hospital for Infectious Diseases, Warsaw

Department of Infectious Diseases, Wroclaw

Matei Bals Institute of Infectious Diseases, Bucharest

Victor Babes Clincial Hospital, Bucharest

Russian Federal Scientific, Moscow

City Hospital St Petersburg, Saint Petersburg

Boehringer Ingelheim Investigational Site, Badalona

Boehringer Ingelheim Investigational Site, Barcelona

Hospital Clínico y Provincial, Barcelona

Ciutat Sanitaria Universitaria de Bellvitge, Hospitalet de Llobregat (Barcelona)

Boehringer Ingelheim Investigational Site, Madrid

Hospital 12 de octubre, Madrid

Hospital Ramón y Cajal, Madrid

Boehringer Ingelheim Investigational Site, Málaga

Boehringer Ingelheim Investigational Site, Santa Cruz de Tenerife

Hospital Universitario Vírgen del Rocío, Seville

Hospital Mútua de Terrasa, Terrassa

Ramathibodhi Hospital, Bangkok

King Chulalonkorn Hospital, Pathumwan, Bangkok

Princess Margaret Hospital, Nassau

Boehringer Ingelheim Investigational Site, Edinburgh

North Middlesex Hospital, London

Royal Free Hospital, London