Initial results from the study, which commenced in and enrolled a total of 15 patients, have demonstrated positive immune response data and safety findings as well as early efficacy data. Three patients with high-risk cytogenetics achieved an immune response against WT1 peptides encoded in the vaccine, and two of these patients continued in remission at the time of last follow-up at one year; the third patient was in remission as of the first, three-month follow-up and will continue to be followed through one year.