Nov 19, 2015

Activity of Oral ALS-008176 in a Respiratory Syncytial Virus Challenge Study

The New England Journal of Medicine
John P DeVincenzoJohn Fry

Abstract

BACKGROUND Respiratory syncytial virus (RSV) infection is a cause of substantial morbidity and mortality. There is no known effective therapy. METHODS We conducted a randomized, double-blind, clinical trial in healthy adults inoculated with RSV. Participants received the oral nucleoside analogue ALS-008176 or placebo 12 hours after confirmation of RSV infection or 6 days after inoculation. Treatment was administered every 12 hours for 5 days. Viral load, disease severity, resistance, and safety were measured throughout the 28-day study period, with measurement beginning before inoculation. The primary end point was the area under the curve (AUC) for viral load, which was assessed immediately before administration of the first dose through the 12th day after inoculation in participants infected with RSV. RESULTS A total of 62 participants received placebo or one of three ALS-008176 dosing regimens: 1 loading dose of 750 mg followed by 9 maintenance doses of 500 mg (group 1), 1 loading dose of 750 mg followed by 9 maintenance doses of 150 mg (group 2), or 10 doses of 375 mg (group 3). In the 35 infected participants (23 of whom were treated with ALS-008176), the AUCs for viral load for groups 1, 2, and 3 and the placebo group wer...Continue Reading

  • References24
  • Citations63

Mentioned in this Paper

Respiratory Syncytial Virus Infections
Area Under Curve
Study
Nucleoside Analogs
Polymerase
Morbidity Aspects
Virus Titer
Virus Replication
Administration Procedure
Dental Plaque

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