Safety and Efficacy of Obatoclax Mesylate (GX15-070MS)for the Treatment of Myelodysplastic Syndromes (MDS)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00413114
Recruitment Status : Completed
First Posted : December 19, 2006
Last Update Posted : August 26, 2013
Information provided by (Responsible Party):
Teva Pharmaceutical Industries ( Gemin X )

Brief Summary:

Defects in the apoptotic process can lead to the onset of cancer by allowing cells to grow unchecked when an oncogeneic signal is present. Obatoclax is designed to restore apoptosis through inhibition of the Bcl-2 family of proteins, thereby reinstating the natural process of cell death that is often inhibited in cancer cells.

This is a multi-center, open-label, Phase II study of obatoclax administered in 2-week cycles to patients with previously-untreated Myelodysplastic Syndromes with anemia and/or thrombocytopenia. Treatment may be administered on an outpatient basis. No investigational or commercial agents or therapies other than those described herein may be administered with the intent to treat the patient's malignancy. Supportive care measures including those directed at controlling symptoms resulting from Myelodysplastic Syndromes are allowed

Condition or disease Intervention/treatment Phase
Myelodysplastic Syndromes Drug: Obatoclax mesylate (GX15-070MS) Phase 2

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 24 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase II Study of Obatoclax Mesylate (GX15-070MS) in Patients With Previously-Untreated Myelodysplastic Syndromes (MDS) With Anemia and/or Thrombocytopenia
Study Start Date : December 2006
Actual Primary Completion Date : February 2009
Actual Study Completion Date : November 2009

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: Obatoclax Mesylate
Obatoclax Mesylate 30mg
Drug: Obatoclax mesylate (GX15-070MS)

Primary Outcome Measures :
  1. International Working Group (IWG) Response Criteria for MDS [ Time Frame: 52 weeks ]
    Determine the response rate according to bone marrow blast count less than or equal to 10%

Secondary Outcome Measures :
  1. Peripheral blood counts; Bone marrow aspirates and biopsies; Transfusions and growth factor requirements [ Time Frame: 52 weeks ]
    hemoglobin level less than 10 g/dL and or platelets less than 50 x 10 9/L. Eastern Cooperative Onocology Group (ECOG) performance status: 0 fully active-2 ambulatory 50% of the time; and total bilirubin less than or equal to 2 mg/dL; normal limits of SGOT/SGPT and creatinine according to laboratory standards

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

Inclusion Criteria:

  • Pathological confirmation of Myelodysplastic Syndromes (MDS)
  • Patients must have had no prior systemic therapy
  • Must have normal organ functions
  • Must have the ability to understand and willingness to sign a written informed consent form

Exclusion Criteria:

  • Must not be a result of prior chemotherapy and/or radiotherapy for another malignancy
  • No other agents or therapies administered in the intent to treat
  • Uncontrolled, intercurrent illness
  • Pregnant women and women who are breast feeding

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00413114

  Show 22 Study Locations
Sponsors and Collaborators
Gemin X
Study Director: Mark Berger, MD Gemin X, Inc.

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Gemin X Identifier: NCT00413114     History of Changes
Other Study ID Numbers: GEM013
First Posted: December 19, 2006    Key Record Dates
Last Update Posted: August 26, 2013
Last Verified: August 2013

Additional relevant MeSH terms:
Myelodysplastic Syndromes
Pathologic Processes
Bone Marrow Diseases
Hematologic Diseases
Precancerous Conditions