Phase I Study of MEK Inhibitor Selumetinib in Combination With Azacitidine in Patients With Higher Risk Chronic Myeloid Neoplasia: MDS, MDS/MPNs, and Myelofibrosis
University of Chicago
Summary
This is a phase I, open-label, dose-escalation study to determine the MTD of selumetinib when combined with the standard dose of azacitidine. Treatment will begin within 28 days of screening procedures. Treatment will continue indefinitely, provided that the patient continues to derive benefit. A patient will be taken off study for reasons described in detail in section 3.12 including disease progression, unacceptable toxicity, inter-current illness, withdrawal of consent, or at the discretion of the investigator. Patients will be followed for 12 weeks after the last dose of study drug, until any study treatment related toxicities have stabilized, or until death. The total duration of the study is expected to be approximately 24 months.
Description
This is a phase I, open-label, dose-escalation study to determine the MTD of selumetinib when combined with the standard dose of azacitidine. For the purposes of DLT assessment, subjects will be stratified into 2 cohorts- cohort A will include subjects with MDS and MDS/MPN; cohort B will include subjects with myelofibrosis. Dose escalation will proceed independently in each of these cohorts. Determination of MTD will thus also proceed independently within each cohort. Three dose levels of selumetinib are planned for evaluation. Dose escalation will follow a 3+3 study design. Patients will be e…
Eligibility
- Age range
- 18+ years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: All of the following criteria must be met: * Age greater than or equal to 18 years of age * Histologic confirmation of one of the following: a. MDS fulfilling all the criteria below: i. International Prognostic Scoring System (IPSS) intermediate-2 or high risk MDS; or Revised International Prognostic Scoring System (IPSS-R) intermediate, high, or very high risk MDS ii. - relapsed/refractory disease iii. Requiring therapy based on the presence of one or more cytopenias (Hb \<10 g/dL and/or red cell transfusion dependence, platelets- \<50,000/μL, or ANC \<1,000/ μL) or e…
Interventions
- DrugAzacitidine
Patients will receive azacitidine 75 mg/m2 as a subcutaneous injection on days 1-7. The dose of azacitidine 75 mg/m2 will remain unchanged, unless a dose reduction is required based on toxicities (dose level -1 = selumetinib 50 mg PO twice daily and azacitidine 50 mg/m2). Subjects will continue on this schedule in cycles of 28 days duration in the absence of disease progression
- DrugSelumetinib
Patients will receive selumetinib administered by mouth on days 8-21. The starting dose cohort (dose level 1) will receive selumetinib 50 mg PO twice daily on days 8-21. Subsequent planned doses include selumetinib 75 mg PO twice daily (dose level 2) and selumetinib 100 mg PO twice daily (dose level 3). Subsequent dose levels will only be given once the prior dose level has shown acceptable safety. Subjects will continue on this schedule in cycles of 28 days duration in the absence of disease progression.
Location
- The University of ChicagoChicago, Illinois