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Antimicrobial Agents and Chemotherapy, August 2005, p. 3483-3485, Vol. 49, No. 8
0066-4804/05/$08.00+0     doi:10.1128/AAC.49.8.3483-3485.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

TAK-220, a Novel Small-Molecule CCR5 Antagonist, Has Favorable Anti-Human Immunodeficiency Virus Interactions with Other Antiretrovirals In Vitro

Cécile L. Tremblay,1,4 Françoise Giguel,1 Yongbiao Guan,2 Ting-Chao Chou,2 Katsunori Takashima,3 and Martin S. Hirsch1*

Massachusetts General Hospital, Infectious Diseases Unit, Harvard Medical School, Cambridge, Massachusetts,1 Memorial Sloan-Kettering Cancer Center, New York, New York,2 Takeda Pharmaceutical Company, Ltd., Osaka, Japan,3 Centre Hospitalier de l'Université de Montréal, Montréal, Quebec, Canada4

Received 22 December 2004/ Returned for modification 8 March 2005/ Accepted 25 April 2005

TAK-220 is a CCR5 antagonist, part of the new class of anti-human immunodeficiency virus type 1 (anti-HIV-1) entry inhibitors. We evaluated the anti-HIV-1 interactions between TAK-220 and various antiretrovirals in vitro. Synergy was observed with all drugs at the 90 and 95% inhibitory concentrations. The favorable drug interactions observed suggest that further clinical evaluation is warranted.


* Corresponding author. Mailing address: Massachusetts General Hospital, 65 Landsdowne St., Room 419, Cambridge, MA 02139. Phone: (617) 768-8370. Fax: (617) 768-8738. E-mail: mshirsch{at}partners.org.


Antimicrobial Agents and Chemotherapy, August 2005, p. 3483-3485, Vol. 49, No. 8
0066-4804/05/$08.00+0     doi:10.1128/AAC.49.8.3483-3485.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.




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Copyright © 2005 by the American Society for Microbiology. All rights reserved.