Participants in the 5-aza and VPA group will receive 5-aza as an injection under the skin once a day for 7 days in a row. On these same 7 days, participants in this group will also take VPA by mouth twice a day or 3 times a day based on your weight. Seven (7) days is considered 1 treatment cycle. Both drugs will be taken at the same time. Cycles will be repeated every 4 to 6 weeks.