Conditions: Myelodysplastic Syndrome
Keywords: 5-aza-2'-deoxycytidine decitabine dacogen Myelodysplastic Syndrome
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 37
Healthy volunteers: no

Brief summary:
The purpose of this study is to evaluate the response rate of decitabine in previously treated and untreated Taiwanese participants with Myelodysplastic Syndrome (MDS - a disease associated with decreased production of blood cells, blood cells are produced but do not mature normally).

Detailed description:
This is an open-label (a medical research study in which participants and researchers are told which treatments the participants are receiving, "unblinded"), multi-center (when more than 1 hospital or medical school team work on a medical research study), single-arm study of decitabine. The study will consist of 5 phases: Pre-treatment phase (before 30 days of first dose), Treatment phase (consist of 8 cycles, each cycle of 28 days), End-of-treatment phase (consist of 30-42 days after the last dose of cycle 8, or at time of discontinuation), Extension phase (1 cycle of 4 weeks) and Post-study phase or follow-up phase (every 2 months until 1 year, lost to follow-up or death). Participants who achieve a complete remission (when a medical problem gets better or goes away at least for a while) will be treated for at least 2 more cycles after first documentation of complete response (CR), after which treatment can be discontinued. Decitabine in a dose of 20 milligram per square meter (mg per m\^2) will be administered intravenously over 1 hour infusion, 1 hour, once daily for 5 consecutive days of a 28 days cycle up to 8 cycles or continued until disease progression or unacceptable toxicity. The primary objective is to evaluate the best response rate (complete response and partial response). Participants' safety will be monitored throughout the study.

Arms:
arm 1: Decitabine 20 milligram per square meter (mg per m\^2) will be administered intravenous (into a vein) infusion (a fluid or a medicine delivered into a vein by way of a needle) over 1 hour, once daily for 5 consecutive days of a 28 days cycle up to 8 cycles or continued until disease progression or unacceptable toxicity.

Interventions: intervention 1: Decitabine
Intervention descriptions: intervention 1: Decitabine 20 mg per m\^2 will be administered intravenous infusion over 1 hour, once daily for 5 consecutive days of a 28 days cycle up to 8 cycles or continued until disease progression or unacceptable toxicity.

Protocol document: