This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

A Pilot Study of a Thrombopoietin-Receptor Agonist, Eltrombopag, in Patients With Low to Int-2 Risk Myelodysplastic Syndrome (MDS)

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
National Institutes of Health Clinical Center (CC) ( National Heart, Lung, and Blood Institute (NHLBI) ) Identifier:
First received: August 15, 2009
Last updated: August 5, 2017
Last verified: August 4, 2017


  • Myelodysplastic syndromes (MDS) are bone marrow disorders characterized by anemia, neutropenia, and thrombocytopenia (low red blood cell, white blood cell, and platelet counts). Patients with MDS are at risk for symptomatic anemia, infection, and bleeding, as well as a risk of progression to acute leukemia. Standard treatments for MDS have significant relapse rates. MDS patients with thrombocytopenia who fail standard therapies require regular, expensive, and inconvenient platelet transfusions, and are at risk for further serious bleeding complications.
  • Eltrombopag is a drug designed to mimic the protein thrombopoietin, which causes the body to make more platelets. Eltrombopag has been able to increase platelet counts in healthy volunteers and in patients with chronic ITP (a disease where patients destroy their own platelets very rapidly and thus develop thrombocytopenia), but researchers do not know if the drug can increase platelet counts in patients with MDS.


  • To find out whether eltrombopag can improve platelet counts in patients with MDS.
  • To determine whether eltrombopag is safe for patients with MDS.


- Patients 18 years of age and older who have consistently low blood platelet counts related to MDS that has not responded to conventional treatment.


  • Treatment with eltrombopag tablets once per day for 90 days.
  • Participants will be monitored closely throughout the initial treatment, with weekly blood tests and separate evaluations at the National Institutes of Health (NIH) treatment center every 4 weeks. Bone marrow biopsies may be conducted to check for abnormalities in bone marrow.
  • If patients show signs of improved platelet counts after 90 days, treatment will continue with additional doses of eltrombopag.
  • Patients who discontinue taking eltrombopag will be evaluated at the NIH treatment center 4 weeks after ending treatment, and again 6 months after ending treatment to check for potential side effects.

Condition Intervention Phase
Myelodysplastic Syndromes Thrombocytopenia Drug: Eltrombopag Phase 2

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Pilot Study of a Thrombopoietin-Receptor Agonist (TPO-R Agonist), Eltrombopag, in Patients With Low to Int-2 Risk Myelodysplastic Syndrome (MDS)

Resource links provided by NLM:

Further study details as provided by National Institutes of Health Clinical Center (CC) ( National Heart, Lung, and Blood Institute (NHLBI) ):

Primary Outcome Measures:
  • 20,000/micro L increase in platelets above baseline and the toxicity profile at 3 months. [ Time Frame: 3 months after first dose medication ]

Secondary Outcome Measures:
  • Changes in platelet count (continuous variable), changes in platelet transfusion requirements, incidence of bleeding; changes in serum thrombopoietin level (as measured by enzyme-linked immunosorbent assay, R&D System)

Enrollment: 29
Study Start Date: July 21, 2009
Estimated Study Completion Date: December 30, 2021
Estimated Primary Completion Date: December 30, 2018 (Final data collection date for primary outcome measure)
  Show Detailed Description


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Diagnosis of MDS, with WHO classification of refractory anemia, refractory cytopenia with unilineage dysplasia (RCUD), RARS, RCMD-RS, or RCMD.

IPSS risk scores of low, intermediate-1, or intermediate-2.

Platelet count less than or equal to 30,000/ microL or platelet-transfusion-dependence (requiring at least 4 platelet transfusions in the 8 weeks prior to study entry); or hemoglobin less than 9.0 gr/dL or red cell transfusion-dependence (requiring at least 4 units of PRBCs in the eight weeks prior to study entry) OR ANC less than or equal to 500

Age greater than or equal to 18 years old

Teatment naive or off all other treatments for MDS (except stable dosing of filgrastim [G-CSF], erythropoietin, and transfusion support) for at least four weeks. G-CSF can be used before, during and after the protocol treatment for subjects with documented neutropenia (<500/UI) as long as they meet the criteria for other cytopenia as stated above. G-CSF must be held for 3 weeks prior to enrollment bone marrow biopsy and prior to each study assessment bone marrow biopsy, unless clinically indicated to avoid infections per PI discretion.

Adequate liver function, as evidenced by total serum bilirubin less than or equal to 1.5 times the upper limit of normal patients with Gilbert s disease are eligible, provided intermittent indirect hyperbilirubinemia, AST or ALT less than or equal to 5 times the upper limit of normal.

A serum creatinine concentration less than or equal to 2 times ULN


WHO classification of chronic myelomonocytic leukemia (CMML), RAEB-1, RAEB-2, AML

Treatment with horse or rabbit ATG or Campath within 6 months of study entry

Subjects with liver cirrhosis including subjects infected with Hepatitis B or C

Subjects with HIV

Infection not adequately responding to appropriate therapy

History of malignancy treated with chemotherapy and cytogenetic abnormalities suggestive of secondary myelodysplasia.

Moribund status or concurrent hepatic, renal, neurologic, pulmonary, infectious, or metabolic disease of such severity that it would preclude the patient s ability to tolerate protocol therapy

Life expectancy of less than 3 months

Hypersensitivity to eltrombopag or its components

Female subjects who are nursing or pregnant or are unwilling to take oral contraceptives or refrain from pregnancy if of childbearing potential

Unable to understand the investigational nature of the study or give informed consent or does not have a legally authorized representative or surrogate that can provide informed consent per section

  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 identifier: NCT00961064

United States, Maryland
National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, United States, 20892
Sponsors and Collaborators
National Heart, Lung, and Blood Institute (NHLBI)
Principal Investigator: Danielle M Townsley, M.D. National Heart, Lung, and Blood Institute (NHLBI)
  More Information

Additional Information:
Responsible Party: National Heart, Lung, and Blood Institute (NHLBI) Identifier: NCT00961064     History of Changes
Other Study ID Numbers: 090199
Study First Received: August 15, 2009
Last Updated: August 5, 2017

Keywords provided by National Institutes of Health Clinical Center (CC) ( National Heart, Lung, and Blood Institute (NHLBI) ):
Myelodysplastic Syndrome

Additional relevant MeSH terms:
Myelodysplastic Syndromes
Pathologic Processes
Bone Marrow Diseases
Hematologic Diseases
Precancerous Conditions
Blood Platelet Disorders processed this record on August 18, 2017