The dose-finding Bayesian adaptive phase I portion of the study is designed to determine the optimal and recommended dose of IPP-204106N using a Bayesian "with memory" design with combined toxicity and pharmacokinetic endpoints to determine doses for successive cohorts of three patients. The Bayesian methodology allows updating information as the trial progresses and stopping the trial as soon as the information obtained is deemed to be sufficient. Preclinical toxicokinetic studies of N6L and IPP-204106N in dogs and the first phase I clinical trial with N6L will be used to inform the prior distribution in the present study.