Guadecitabine (SGI-110) vs Treatment Choice in Adults With MDS or CMML Previously Treated With HMAs

    Not Recruiting
  • participants needed
  • sponsor
    Astex Pharmaceuticals
Updated on 7 April 2021
Rigshospitalet (0.0 mi away) Contact
chronic myelomonocytic leukemia
growth factor
bone marrow procedure
blood transfusion


A Phase 3, randomized, open-label, parallel-group, multicenter study designed to evaluate the efficacy and safety of guadecitabine in subjects with MDS or CMML who failed or relapsed after adequate prior treatment with azacitidine, decitabine, or both. This global study will be conducted in approximately 15 countries. Approximately 408 subjects from approximately 100 study centers will be randomly assigned in a 2:1 ratio to either guadecitabine (approximately 272 subjects) or Treatment Choice (approximately 136 subjects). The study consists of a 14-day screening period, a treatment period, a safety follow-up visit, and a long-term follow-up period. The study is expected to last more than 2 years, and the duration of individual subject participation will vary. Subjects may continue to receive treatment for as long as they continue to benefit.


Multicenter, randomized, open-label, parallel-group study of guadecitabine vs Treatment Choice (TC). Approximately 408 subjects will be randomly assigned 2:1 to either guadecitabine or TC.

  • Guadecitabine: approximately 272 subjects.
  • TC: approximately 136 subjects.

Before randomization, the investigator will assign each subject to one of the following TC

  • Low dose cytarabine (LDAC).
  • Standard Intensive Chemotherapy (IC) of a 7+3 regimen.
  • Best Supportive Care (BSC) only. BSC will be provided to all subjects as per standard and institutional practice. Subjects randomized to TC will not be allowed to cross over to guadecitabine. Data will be reviewed by an independent Data Monitoring Committee at regular intervals, primarily to evaluate safety during study conduct. Randomization will be stratified by disease category (MDS vs CMML), bone marrow (BM) blasts (BM blasts >10% vs BM blasts 10%), TC option (LDAC vs IC vs BSC), and study center region.

Guadecitabine: 60 mg/m2 given SC daily on Days 1-5 in 28-day cycles (delayed as needed to allow blood count recovery). Treatment should be given for at least 6 total cycles in the absence of unacceptable toxicity or disease progression requiring alternative therapy. Beyond 6 cycles, treatment should continue as long as the subject continues to benefit. BSC should be given according to standard and institutional practice.

Treatment Choice (TC): Before randomization, the investigator will assign each subject to one of the following TC options:

  • Low dose cytarabine (LDAC) given as 20 mg/m2 SC or IV once daily for 14 days in 28-day cycles (delayed as needed to allow blood count recovery). Treatment should be given for at least 4 cycles in the absence of disease progression or unacceptable toxicity.
  • Standard Intensive Chemotherapy (IC) of a 7+3 regimen: given as cytarabine 100-200 mg/m2/day given as continuous infusion for 7 days and an anthracycline given as per institutional standard practice such as daunorubicin (45-60 mg/m2/day), or idarubicin (9-12 mg/m2/day), or mitoxantrone (8-12 mg/m2/day) by intravenous infusion for 3 days.
  • Best Supportive Care (BSC) only: given according to standard and institutional practice. BSC includes, but is not limited to blood transfusions (RBCs or platelets), growth factors including erythropoiesis stimulating agents (ESA), granulocyte stimulating factors (GSFs), iron chelating therapy, and broad spectrum antibiotics and/or antifungals.

Condition Chronic myelomonocytic leukemia, Preleukemia, MYELODYSPLASTIC SYNDROME
Treatment Guadecitabine, Treatment Choice
Clinical Study IdentifierNCT02907359
SponsorAstex Pharmaceuticals
Last Modified on7 April 2021

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