Delavirdine Susceptibilities and Associated Reverse Transcriptase Mutations in Human Immunodeficiency Virus Type 1 Isolates from Patients in a Phase I/II Trial of Delavirdine Monotherapy (ACTG 260)

Author:

Demeter L. M.1,Shafer R. W.2,Meehan P. M.3,Holden-Wiltse J.3,Fischl M. A.4,Freimuth W. W.5,Para M. F.6,Reichman R. C.1

Affiliation:

1. University of Rochester School of Medicine and Dentistry, Rochester, New York1;

2. Stanford University, Palo Alto, California2;

3. Harvard School of Public Health, Boston, Massachusetts3;

4. University of Miami, Miami, Florida4;

5. Pharmacia and Upjohn, Kalamazoo, Michigan5; and

6. Ohio State University, Columbus, Ohio6

Abstract

ABSTRACT The development of human immunodeficiency virus type 1 resistance to delavirdine (DLV) was studied in subjects receiving DLV monotherapy. Phenotypic resistance developed in 28 of 30 subjects within 8 weeks. K103N and Y181C, which confer nonnucleoside reverse transcriptase inhibitor (NNRTI) cross-resistance, were the predominant reverse transcriptase mutations. P236L, which confers DLV resistance but hypersensitivity to other NNRTIs, developed in <10% of isolates.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

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