Ambit commences Phase I advanced solid tumor trials for AC430 and AC480 inhibitors

Ambit Biosciences (Ambit), today announced that it has initiated separate Phase I trials for two products AC430, a selective Janus Kinase 2 (JAK2) inhibitor, and AC480, a pan-HER inhibitor.

The Phase I trial for AC430 is a two part, placebo-controlled, single ascending, and multiple ascending dose trial in healthy volunteers.  AC430 will be administered orally once-daily and doses escalated until a maximum tolerated or maximum feasible dose is established.  In addition to evaluating the safety, tolerability, and pharmacokinetics of AC430, the study will also assess cytokine signal transduction.  

The Phase I trial for AC480 is a multi-center, dose escalation study with AC480 administered by intravenous infusion on days one and two of a 21 day cycle, either alone or in combination with docetaxel.  The trial will assess safety, pharmacokinetics and anti-tumor activity of AC480 in patients with advanced solid tumors.

"The initiations of these studies are important milestones," said Alan Lewis, President and CEO Ambit Biosciences. "AC430 has demonstrated convincing efficacy in pre-clinical models of autoimmune and inflammatory diseases, and AC480 IV was developed to assess whether pulsatile doses of a pan-HER inhibitor administered in combination with a taxane such as docetaxal would produce synergistic anti-tumor activity."