phase 3, page-5

2 years for trial, following taken from news link:
"Avexa is aiming to initiate sites for the Phase III trial in the fourth quarter of 2007 and enrol the first patients by calendar year end. This trial is expected to take about 2 years. The Company will also use the funds to complete a paediatric trial in children with HIV. Currently it is estimated that there are over 1 million children suffering from HIV worldwide. "