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Clofarabine for Myelodysplastic Syndrome (MDS) Patients Who Failed Vidaza Treatment (tx)

Primary Purpose

Myelodysplastic Syndromes

Status
Terminated
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
Clofarabine
Clofarabine
Sponsored by
Texas Oncology Cancer Center
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Myelodysplastic Syndromes focused on measuring Myelodysplastic Syndromes

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Patients with MDS of any risk group who have, just immediately prior to being entered into this study, already received at least six cycles of 5-azacytidine and have failed, either due to no response or to disease relapse despite being still on 5-azacytidine, or patients whose MDS has progressed while on 5-azacytidine, irrespective of the number of cycles the patient has received. We have specifically chosen to be very stringent about our patient population in order to address our question of whether clofarabine can be used to salvage patients who have failed 5-azacytidine with only a small patient population, i.e. 10 patients in each cohort.
  • ECOG Performance status of 0 - 2
  • Recombinant erythropoietin is allowed, if the patients are already receiving erythropoietin. G-CSF can be given during the neutropenic stage following therapy since this would not affect evaluation of response because the response will be made based on CBC and bone marrow changes upon recovery from clofarabine.
  • Patients must have been at least four weeks after the last course of 5-azacytidine
  • Age over 18 years
  • Have adequate renal and hepatic functions as indicated by the following laboratory values:

    • Serum creatinine 1.0 mg/dL; if serum creatinine 1.0 mg/dL, then the estimated glomerular filtration rate (GFR) must be 60 mL/min/1.73 m2 as calculated by the Modification of Diet in Renal Disease equation where Predicted GFR (ml/min/1.73 m2) = 186 x (Serum Creatinine)-1.154 x (age in years)-0.023 x (0.742 if patient is female) x (1.212 if patient is black)
    • Serum bilirubin ≤1.5 mg/dL × upper limit of normal (ULN)
    • Aspartate transaminase (AST)/alanine transaminase (ALT) 2.5 × ULN
    • Alkaline phosphatase 2.5 × ULN
  • Capable of understanding the investigational nature, potential risks and benefits of the study, and able to provide signed informed consent.
  • Female patients of childbearing potential must have a negative serum pregnancy test within 2 weeks prior to enrollment.
  • Male and female patients must use an effective contraceptive method during the study and for a minimum of 6 months after study treatment.

Exclusion Criteria:

  • Nursing or pregnant women
  • Prior clofarabine therapy
  • Life expectancy of less than 3 months due to other intercurrent illness.
  • Current concomitant chemotherapy, radiation therapy, or immunotherapy other than as specified in the protocol.
  • Use of investigational agents within 30 days or any anticancer therapy within 4 weeks before study entry with the exception of hydroxyurea. The patient must have recovered from all acute toxicities from any previous therapy.
  • Have any other severe concurrent disease, or have a history of serious organ dysfunction or disease involving the heart, kidney, liver, or other organ system that may place the patient at undue risk to undergo treatment.
  • Patients with a systemic fungal, bacterial, viral, or other infection not controlled (defined as exhibiting ongoing signs/symptoms related to the infection and without improvement, despite appropriate antibiotics or other treatment).
  • Any significant concurrent disease, illness, or psychiatric disorder that would compromise patient safety or compliance, interfere with consent, study participation, follow up, or interpretation of study results.

Sites / Locations

  • Texas Oncology Cancer Center

Arms of the Study

Arm 1

Arm 2

Arm Type

Active Comparator

Active Comparator

Arm Label

10 mg/m2 group

5 mg/m2 group

Arm Description

Patients were treated with Clofarabine 10 mg/m2 daily x 5 days per cycle. Cycles were intended on being every 28 days but this was flexible due to the bone marrow neding to recover from each cycle before strting the next one. Neulasta was given on day 5 of each cycle. Patients were treated until disease progression, or intolerable toxicities.

Patients were treated with Clofarabine 5 mg/m2 daily x 5 days per cycle. Cycles were intended on being every 28 days but this was flexible due to the bone marrow neding to recover from each cycle before strting the next one. Neulasta was given on day 5 of each cycle. Patients were treated until disease progression, or intolerable toxicities.

Outcomes

Primary Outcome Measures

Improvement in Peripheral Blood Count and Reduction in Number of Transfusions
Hematologic improvement will be an increased Hemoglobin of 1.5 g/dL or a reduction in the need for PRBC transfusions by at least 4 units over an 8 week period, at least 100% increase and an ANC of >0.5 x 10^9/L and an absolut platelet count increase of >30 x 10^9/L for patients who start at > 20 x 10^9/L, or increase from <20 x 10^9/L to >20 x 10^9/L and by at least 100%.
Determine Frequency and Duration of Bone Marrow Responses to IV Clofarabine
The International Working Group response criteria was used. Complete remission is defined as <5 % marrow blasts without evidence of dysplasia and normalization of the peripheral blood counts, including hemoglobin >11 g/dL, neutrophil count of >1 x 10^9/L. and platelet count of >100 x 10^9/L. Patients must also be transfusion-independent and not require any recombinant erythropoietin. Partial remission (PR) is defined as: satisfying complete remission criteria if abnormal before treatment, except that blasts are reduced by 50% or more compared to pretreatment levels, but still >5 %. Stable disease is defined as: failure to achieve at least a PR but without evidence of disease progression for at least 8 weeks.Progression of disease is defined as: disease progression with worsening cytopenias. Best response of these patients is used in the determination for this outcome below.
To Determine the Non-hematologic Toxicity Profile of This Dose Schedule (Grade 2 and Above)
Assess for adverse events in all the patients receiving the Clofarabine at the dose schedules described in the protocol (CTCAE 3.0 used).

Secondary Outcome Measures

Number of Participants With DNA Hypomethylation During the Study
Since we previously observed decreases in DNA methylation in tumor cells after in vitro treatment with Clofarabine, we compared the long interspersednuclear element-1 methylation of genomic DNA obtained from CD3-depletedperipheral blood mononuclear cells between day 1 and day 5 of each cycle of Clofarabine.

Full Information

First Posted
June 17, 2008
Last Updated
March 12, 2013
Sponsor
Texas Oncology Cancer Center
Collaborators
Genzyme, a Sanofi Company
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1. Study Identification

Unique Protocol Identification Number
NCT00700011
Brief Title
Clofarabine for Myelodysplastic Syndrome (MDS) Patients Who Failed Vidaza Treatment (tx)
Official Title
A Pilot Study of IV Clofarabine for Patients With Myelodysplastic Syndrome Who Have Failed 5-azacytidine
Study Type
Interventional

2. Study Status

Record Verification Date
March 2013
Overall Recruitment Status
Terminated
Why Stopped
poor accrual
Study Start Date
March 2008 (undefined)
Primary Completion Date
March 2010 (Actual)
Study Completion Date
March 2010 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Texas Oncology Cancer Center
Collaborators
Genzyme, a Sanofi Company

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The investigators hypothesize that, in addition to its apoptotic effect, clofarabine induces DNA hypomethylation. If the investigators' hypothesis is correct, findings from the present proposal will not only contribute to information relating to the mechanisms of action of clofarabine but also provide the opportunity for combined epigenetic targeting of MDS using clofarabine with either another hypomethylating agent or a histone deacetylase inhibitor. Clofarabine has demonstrated anti-cancer activity through inhibition of DNA synthesis and repair, induction of apoptosis, and possibly through other mechanisms. Numerous responses have been observed after treatment with clofarabine in heavily pre-treated relapsed/refractory patients with ALL, AML and high risk MDS. In the present proposal, the investigators will study the clinical and laboratory effects of 2 different dosages of clofarabine in patients who have failed the hypomethylating agent, 5-azacytidine. This study will recruit patients who have received at least six cycles of 5-azacytidine without response or whose disease has progressed or relapsed while on 5-azacytidine. The first cohort of patients will receive clofarabine 10 mg/m2/day for five days and the second cohort of patients 5 mg/m2/day for five days, both every four to six weeks. The investigators will determine the frequency of response to the two dosages of nucleoside analog in this group of patients. Measurement of responses will include improvement in the peripheral blood count, reduction in the blood and platelet transfusion need and eradication of cytogenetically abnormal clones. Successful completion of this study will define the position of clofarabine in MDS in the era of epigenetic targeting.
Detailed Description
Study Overview This study will recruit patients who have received at least six cycles of 5-azacytidine without response or whose disease has progressed or relapsed while on 5-azacytidine. The first cohort of patients will receive clofarabine 10 mg/m2/day for five days and the second cohort of patients 5 mg/m2/day for five days, both every four to six weeks. The investigators will determine the frequency of response to the two dosages of nucleoside analog in this group of patients. Measurement of responses will include improvement in the peripheral blood count, reduction in the blood and platelet transfusion need and eradication of cytogenetically abnormal clones. Primary Objectives To determine the frequency and duration of peripheral blood responses to IV clofarabine in MDS patients who have failed 5-azacytidine To determine the frequency and duration of bone marrow responses to IV clofarabine, including CR + PR Secondary Objectives To determine whether clofarabine exhibits a DNA hypomethylating property

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Myelodysplastic Syndromes
Keywords
Myelodysplastic Syndromes

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
10 (Actual)

8. Arms, Groups, and Interventions

Arm Title
10 mg/m2 group
Arm Type
Active Comparator
Arm Description
Patients were treated with Clofarabine 10 mg/m2 daily x 5 days per cycle. Cycles were intended on being every 28 days but this was flexible due to the bone marrow neding to recover from each cycle before strting the next one. Neulasta was given on day 5 of each cycle. Patients were treated until disease progression, or intolerable toxicities.
Arm Title
5 mg/m2 group
Arm Type
Active Comparator
Arm Description
Patients were treated with Clofarabine 5 mg/m2 daily x 5 days per cycle. Cycles were intended on being every 28 days but this was flexible due to the bone marrow neding to recover from each cycle before strting the next one. Neulasta was given on day 5 of each cycle. Patients were treated until disease progression, or intolerable toxicities.
Intervention Type
Drug
Intervention Name(s)
Clofarabine
Other Intervention Name(s)
Clolar
Intervention Description
10 mg/m2 x 5 days per 4 to 6 week cycles
Intervention Type
Drug
Intervention Name(s)
Clofarabine
Other Intervention Name(s)
Clolar
Intervention Description
5 mg/m2 x 5 days per 4 to 6 week cycles
Primary Outcome Measure Information:
Title
Improvement in Peripheral Blood Count and Reduction in Number of Transfusions
Description
Hematologic improvement will be an increased Hemoglobin of 1.5 g/dL or a reduction in the need for PRBC transfusions by at least 4 units over an 8 week period, at least 100% increase and an ANC of >0.5 x 10^9/L and an absolut platelet count increase of >30 x 10^9/L for patients who start at > 20 x 10^9/L, or increase from <20 x 10^9/L to >20 x 10^9/L and by at least 100%.
Time Frame
2-3 months
Title
Determine Frequency and Duration of Bone Marrow Responses to IV Clofarabine
Description
The International Working Group response criteria was used. Complete remission is defined as <5 % marrow blasts without evidence of dysplasia and normalization of the peripheral blood counts, including hemoglobin >11 g/dL, neutrophil count of >1 x 10^9/L. and platelet count of >100 x 10^9/L. Patients must also be transfusion-independent and not require any recombinant erythropoietin. Partial remission (PR) is defined as: satisfying complete remission criteria if abnormal before treatment, except that blasts are reduced by 50% or more compared to pretreatment levels, but still >5 %. Stable disease is defined as: failure to achieve at least a PR but without evidence of disease progression for at least 8 weeks.Progression of disease is defined as: disease progression with worsening cytopenias. Best response of these patients is used in the determination for this outcome below.
Time Frame
2-3 months
Title
To Determine the Non-hematologic Toxicity Profile of This Dose Schedule (Grade 2 and Above)
Description
Assess for adverse events in all the patients receiving the Clofarabine at the dose schedules described in the protocol (CTCAE 3.0 used).
Time Frame
biweekly for duration of treatment , an average of 3 months
Secondary Outcome Measure Information:
Title
Number of Participants With DNA Hypomethylation During the Study
Description
Since we previously observed decreases in DNA methylation in tumor cells after in vitro treatment with Clofarabine, we compared the long interspersednuclear element-1 methylation of genomic DNA obtained from CD3-depletedperipheral blood mononuclear cells between day 1 and day 5 of each cycle of Clofarabine.
Time Frame
assessed twice per cycle

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Patients with MDS of any risk group who have, just immediately prior to being entered into this study, already received at least six cycles of 5-azacytidine and have failed, either due to no response or to disease relapse despite being still on 5-azacytidine, or patients whose MDS has progressed while on 5-azacytidine, irrespective of the number of cycles the patient has received. We have specifically chosen to be very stringent about our patient population in order to address our question of whether clofarabine can be used to salvage patients who have failed 5-azacytidine with only a small patient population, i.e. 10 patients in each cohort. ECOG Performance status of 0 - 2 Recombinant erythropoietin is allowed, if the patients are already receiving erythropoietin. G-CSF can be given during the neutropenic stage following therapy since this would not affect evaluation of response because the response will be made based on CBC and bone marrow changes upon recovery from clofarabine. Patients must have been at least four weeks after the last course of 5-azacytidine Age over 18 years Have adequate renal and hepatic functions as indicated by the following laboratory values: Serum creatinine 1.0 mg/dL; if serum creatinine 1.0 mg/dL, then the estimated glomerular filtration rate (GFR) must be 60 mL/min/1.73 m2 as calculated by the Modification of Diet in Renal Disease equation where Predicted GFR (ml/min/1.73 m2) = 186 x (Serum Creatinine)-1.154 x (age in years)-0.023 x (0.742 if patient is female) x (1.212 if patient is black) Serum bilirubin ≤1.5 mg/dL × upper limit of normal (ULN) Aspartate transaminase (AST)/alanine transaminase (ALT) 2.5 × ULN Alkaline phosphatase 2.5 × ULN Capable of understanding the investigational nature, potential risks and benefits of the study, and able to provide signed informed consent. Female patients of childbearing potential must have a negative serum pregnancy test within 2 weeks prior to enrollment. Male and female patients must use an effective contraceptive method during the study and for a minimum of 6 months after study treatment. Exclusion Criteria: Nursing or pregnant women Prior clofarabine therapy Life expectancy of less than 3 months due to other intercurrent illness. Current concomitant chemotherapy, radiation therapy, or immunotherapy other than as specified in the protocol. Use of investigational agents within 30 days or any anticancer therapy within 4 weeks before study entry with the exception of hydroxyurea. The patient must have recovered from all acute toxicities from any previous therapy. Have any other severe concurrent disease, or have a history of serious organ dysfunction or disease involving the heart, kidney, liver, or other organ system that may place the patient at undue risk to undergo treatment. Patients with a systemic fungal, bacterial, viral, or other infection not controlled (defined as exhibiting ongoing signs/symptoms related to the infection and without improvement, despite appropriate antibiotics or other treatment). Any significant concurrent disease, illness, or psychiatric disorder that would compromise patient safety or compliance, interfere with consent, study participation, follow up, or interpretation of study results.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Seah Lim, MD
Organizational Affiliation
Texas Oncology Cancer Center
Official's Role
Principal Investigator
Facility Information:
Facility Name
Texas Oncology Cancer Center
City
Amarillo
State/Province
Texas
ZIP/Postal Code
79106
Country
United States

12. IPD Sharing Statement

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Links:
URL
http://www.texasoncology.com/
Description
Texas Oncology
URL
http://www.texasoncologyamarillo.com/
Description
Texas Oncology - Amarillo

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Clofarabine for Myelodysplastic Syndrome (MDS) Patients Who Failed Vidaza Treatment (tx)

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