Inhibitex Reports Positive Interim Safety and Antiviral Data from Ongoing Phase 1b Study of HCV Nucleotide Inhibitor INX-189
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ATLANTA --(Business Wire)--
Inhibitex, Inc. (Nasdaq: INHX) today reported positive preliminary interim safety and antiviral data from the first two monotherapy cohorts of its ongoing Phase 1b clinical trial of INX (News - Alert)-189, an oral NS5b nucleotide inhibitor being developed to treat chronic infections caused by hepatitis C virus (HCV).
The trial, which is being conducted under an IND in the United States, is a double-blind, placebo-controlled, dose escalation study designed to evaluate the safety, tolerability, pharmacokinetics and antiviral activity of INX-189, administered orally once-daily for seven days, for the treatment of HCV genotype 1 treatment naïve patients. Each treatment cohort in the study is comprised of 10 patients, eight that receive INX-189 and two that receive placebo. In addition to the 9 mg and 25 mg dose cohorts, the Company plans to enroll up to three more INX-189 monotherapy cohorts in the study, as well as two cohorts that will receive different doses of INX-189 once daily for seven days in combination with ribavirin.
INX-189, dosed once-daily at 9mg and 25mg for seven days, demonstrated potent antiviral activity with a mean HCV RNA reduction from baseline levels of -0.71 and -1.03 log10 IU/mL, respectively. The mean HCV RNA decline from baseline levels observed in patients that received placebo was -0.06 log10 IU/mL. The HCV RNA declines from baseline were statistically significant from placebo, with p-values of 0.0156 and 0.0006 in the 9 mg and 25 mg cohorts, respectively. In addition to the mean reductions in viral load, clinically meaningful decreases in alanine transaminase (ALT) levels were observed for patients receiving INX-189 at both dose levels and no patients experienced viral breakthrough.
http://www.tmcnet.com/usubmit/2011/01/09/5234086.htm#
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