I. Observe clinical response in patients treated with this drug. II. Characterize the pharmacokinetics of this drug in these patients. III. Determine the clinical significance of genetic polymorphisms on the genes coding metabolizing enzymes (e.g., CYP1A1, 1A2, 2C9, 2C19, and SULTA1) and on the disposition and efficacy/toxicity of AFP464 and AF.