Phase II Eltrombopag in Chronic Lymphocytic Leukemia (CLL)

This study is ongoing, but not recruiting participants.
Sponsor:
Collaborator:
GlaxoSmithKline
Information provided by (Responsible Party):
M.D. Anderson Cancer Center
ClinicalTrials.gov Identifier:
NCT01168921
First received: July 22, 2010
Last updated: April 30, 2014
Last verified: April 2014
  Purpose

The goal of this clinical research study is to learn if eltrombopag can help to increase the number of platelets in patients with CLL. The safety of this drug will also be studied.


Condition Intervention Phase
CLL
Leukemia
Drug: Eltrombopag
Phase 2

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase II Trial of Eltrombopag for Patients With Chronic Lymphocytic Leukemia (CLL) and Thrombocytopenia

Resource links provided by NLM:


Further study details as provided by M.D. Anderson Cancer Center:

Primary Outcome Measures:
  • Number of Participants with Overall Response [ Time Frame: 3 Months ] [ Designated as safety issue: No ]
    Overall response rate (OR), which is defined as the composite of complete response (CR) and major response (MR). CR is defined as an increase in platelets (PLT) count to ≥100K/µL for at least 4 weeks. MR is defined as an increase in PLT count from <20K/µL to ≥20K/µL and by at least 100% for at least 8 weeks; or for participants starting with >20K/µL platelets, absolute increase in PLT count of ≥30K/µL for at least 4 weeks: or PLT transfusion independence (no PLT transfusion) for at least 4 weeks. Overall response is best response achieved over first 3 months of treatment.


Estimated Enrollment: 36
Study Start Date: November 2010
Estimated Primary Completion Date: November 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Eltrombopag
Starting dose 75 mg by mouth (PO) daily for 28 day cycle.
Drug: Eltrombopag
Starting dose 75 mg by mouth (PO) daily for 28 day cycle
Other Name: Promacta

  Hide Detailed Description

Detailed Description:

The Study Drug:

When the number of platelets in your body gets too low, it can cause bleeding, which may cause serious health problems and/or prevent you from receiving chemotherapy. Eltrombopag is designed to act like a protein in your body that helps make platelets. This may help increase your platelet counts.

Study Drug Administration:

You will take pills of the study drug by mouth 1 time each day on an empty stomach (1 hour before or 2 hours after a meal). You should take the pills with 1 cup (8 ounces) of water. You should wait at least 4 hours between taking eltrombopag and eating foods with calcium (dairy products and/or juices with added calcium) or taking drugs/supplements with iron, calcium, aluminum, magnesium, selenium and/or zinc. Other drugs may also affect eltrombopag. Be sure to tell your doctor about any drugs and/or supplements you may be taking.

During your study visits, your doctor will check your platelet counts to see if they improve. If they do not improve, your dose of study drug may be increased. Your doctor will instruct you on each dose of eltrombopag you should take.

Do not take more than 1 dose of eltrombopag on any one day. If you forget to take a dose, you should skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.

Study Visits:

Each study "cycle" will be 28 days.

Each week during Cycle 1, then every 2 weeks during Cycles 2 and 3:

  • You will have a physical exam, including measurement of your vital signs.
  • You will be asked about any bleeding that may have occurred since the last study visit.
  • Blood (about 1 tablespoon) will be drawn for routine tests.

On Day 1 (+/- 7 days) of Cycles 4 and beyond:

  • You will have a physical exam.
  • You will be asked about any bleeding that may have occurred since the last study visit.
  • Blood (about 1 tablespoon) will be drawn for routine tests.
  • You will also have a bone marrow aspirate/biopsy to check the status of the disease and to check your platelet counts. This test will only be performed every 3 cycles.

Length of Study Participation:

You may continue taking the study drug for as long as the doctor thinks it is in your best interest. You will no longer be able to take the study drug if you require other treatment for CLL or if intolerable side effects occur.

Follow-Up:

After you stop taking eltrombopag for any reason, your platelet counts may drop. This may increase your risk of bleeding. Blood (about 1 tablespoon) will be drawn each week for 4 weeks to check your platelet counts.

This is an investigational study. Eltrombopag is FDA approved and commercially available for use in chronic immune thrombocytopenic purpura (ITP - severe bleeding due to platelet destruction by the immune system). The use of this drug in patients with CLL is investigational.

Up to 36 patients will take part in this study. All will be enrolled at MD Anderson.

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  1. Diagnosis of chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL)
  2. Age >/= 18 years
  3. PLT transfusion-dependent, defined as need for transfusion to maintain PLT count >/=20K/µL, or the average of two (non-transfused) PLT counts taken within 2 weeks of the screening period </=50K/µL, with no individual count >55K/µL
  4. Patients with ITP must have failed at least 1 prior treatment for ITP including one of the following: corticosteroids, rituximab, splenectomy, cyclosporine
  5. At least 3 weeks must have elapsed since the last chemotherapy treatment for CLL
  6. ECOG performance status (PS) </=2
  7. Adequate liver function (total bilirubin </=2* upper limit normal (ULN); ALT </=2.5* ULN)
  8. Adequate renal function (serum creatinine Cr </=2.2 mg/dL)
  9. For patients with ITP on corticosteroids or cyclosporine, dose of corticosteroids or cyclosporine must be stable for 2 weeks prior to enrollment and planned to be tapered in patients responding to eltrombopag
  10. Able to provide informed consent

Exclusion Criteria:

  1. Concurrent chemotherapy for CLL
  2. Diagnosis of Richter's transformation
  3. Uncontrolled autoimmune hemolytic anemia i.e. patients with AIHA that is not controlled with treatment such as corticosteroids or cyclosporine. This would include patients who require PBRC transfusions or who do not have a stable hemoglobin (HGB) due to ongoing hemolysis.
  4. Concurrent treatment for ITP (except for corticosteroids and cyclosporine)
  5. Diagnosis of myelodysplastic syndrome or acute myeloid leukemia
  6. Active infection or significant medical illness as determined by the treating physician
  7. Treatment with thrombomimetic agents in the past 3 months (rTPO, PEG-rHuMGDF, Nplate or Promacta)
  8. Pregnant or breast feeding subjects and subjects not willing to use adequate contraceptive precautions
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01168921

Locations
United States, Texas
UT MD Anderson Cancer Center
Houston, Texas, United States, 77030
Sponsors and Collaborators
M.D. Anderson Cancer Center
GlaxoSmithKline
Investigators
Study Chair: William G. Wierda, MD, PHD, BS UT MD Anderson Cancer Center
  More Information

Additional Information:
No publications provided

Responsible Party: M.D. Anderson Cancer Center
ClinicalTrials.gov Identifier: NCT01168921     History of Changes
Other Study ID Numbers: 2010-0123, NCI-2012-01905
Study First Received: July 22, 2010
Last Updated: April 30, 2014
Health Authority: United States: Institutional Review Board

Keywords provided by M.D. Anderson Cancer Center:
Chronic Lymphocytic Leukemia
CLL
Thrombocytopenia
Small lymphocytic lymphoma
SLL
Eltrombopag
Promacta
thrombopoietin (TPO)-receptor agonist
platelets

Additional relevant MeSH terms:
Leukemia
Leukemia, Lymphocytic, Chronic, B-Cell
Leukemia, Lymphoid
Thrombocytopenia
Blood Platelet Disorders
Hematologic Diseases
Immune System Diseases
Immunoproliferative Disorders
Leukemia, B-Cell
Lymphatic Diseases
Lymphoproliferative Disorders
Neoplasms
Neoplasms by Histologic Type

ClinicalTrials.gov processed this record on October 29, 2014