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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00671697
Other study ID # 07-0916 / 201011797
Secondary ID
Status Completed
Phase Phase 1
First received May 1, 2008
Last updated May 31, 2013
Start date May 2008
Est. completion date May 2011

Study information

Verified date May 2013
Source Washington University School of Medicine
Contact n/a
Is FDA regulated No
Health authority United States: Food and Drug Administration
Study type Interventional

Clinical Trial Summary

This study is designed to test the combination of decitabine, arsenic trioxide and ascorbic acid in patients with myelodysplastic syndromes (MDS) and acute myeloid leukemia


Description:

Myelodysplastic syndromes (MDS) are hematological disorders characterized by ineffective hematopoiesis. DNA hypomethylating agents such as decitabine have been shown to have activity in this disorder by reversing the epigenetic mechanism of gene silencing.

Acute Myeloid Leukemia (AML) is a hematological disorder characterized by ineffective hematopoiesis and malignant expansion of clonal myeloid cells. In elderly patients (≥ 60 years old), MDS commonly precedes the diagnosis of AML. Standard therapy for AML consists of cytotoxic chemotherapy and is often followed with allogeneic stem cell transplantation. Unfortunately, elderly patients are often unable to tolerate such aggressive therapy.

Arsenic has also shown activity in patients with MDS and AML though modulation of apoptosis via increased oxidative stress. In preclinical modes, arsenic activity is related to the production of radical oxygen species that damage mitochondria. Cellular glutathione acts as a cellular antioxidant and can be depleted with the vitamin ascorbic acid which increases intracellular oxidative stress and sensitivity to arsenic trioxide induced apoptosis.

We are studying the combination of decitabine, arsenic trioxide and ascorbic acid, two primary agents and one vitamin all with different mechanisms of action in order to improve the response rate in patients with MDS and AML. This is an open-label, single-arm, single-center, dose escalation Phase I trial of decitabine, arsenic trioxide and ascorbic acid in patients with MDS, either de novo or secondary, fitting any of the FAB classifications and AML.


Recruitment information / eligibility

Status Completed
Enrollment 13
Est. completion date May 2011
Est. primary completion date January 2010
Accepts healthy volunteers No
Gender Both
Age group 18 Years and older
Eligibility Inclusion Criteria:

1. MDS (either de novo or secondary) fitting any of the FAB classifications or AML defined by FAB classification criteria. Patients with < 5% bone marrow blasts must also meet one of the following criteria:

1. Symptomatic anemia with either hemoglobin <10.0 g/dL or requiring red blood cell (RBC) transfusion

2. Thrombocytopenia with a history of two or more platelet counts < 50,000 / µL or a significant hemorrhage requiring platelet transfusions, or

3. Neutropenia with two or more absolute neutrophil counts < 1,000 /µL.

AML patients must also have a WBC < 10,000µL and meet one of the following two criteria:

1. Age greater than or equal to 60 years

2. Relapsed AML and are not a candidate for cytotoxic chemotherapy.

2. ECOG performance status of 0-2.

3. Must give written informed consent indicating their awareness of the investigational nature of this study and its potential hazards.

4. Adequate renal and hepatic function (creatinine < 1.5x institutional upper limit of normal, total bilirubin = 1.5x institutional upper limit of normal, AST and ALT = 2x institutional upper limit of normal).

5. Serum potassium > 4.0 mEq/L, serum magnesium > 1.8 mg/dL.

6. Life expectancy of at least 16 weeks.

7. Women of childbearing age must have a negative serum pregnancy test prior to initiating therapy.

8. Sexually active women of childbearing potential must use effective birth control during the trial and for at least two months following the trial.

9. Men must be willing to avoid fathering a new child while receiving therapy with decitabine.

10. Greater than or equal to 18 years, no upper age limit

11. Individuals who are candidates for hematopoietic stem cell transplantation and who meet all other study criteria may participate in the study and receive intravenous decitabine in combination with arsenic trioxide and Ascorbic acid as a treatment prior to transplantation.

Exclusion Criteria:

1. Known central nervous system (CNS) leukemia.

2. Previously received greater than or equal to 5 cycles of azacitidine (Vidaza®, Pharmion Corp., Boulder, CO) or decitabine (Dacogen®, MGI Pharma Inc. Bloomington, MN).

3. QTc > 460 msec.

4. Known or suspected hypersensitivity to decitabine, arsenic or ascorbic acid.

5. Receiving any other investigational agents within 30 days of first dose of study drug.

6. Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, congestive heart failure of NYHA class 3 or 4, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situation that would limit compliance with study requirements.

7. Known positive serology for HIV.

8. Had radiotherapy within 14 days prior to study enrollment.

9. Known presence of hepatic tumors.

10. < 18 years of age

11. Exclude women who are pregnant or breast feeding.

12. Known history of glucose-6-phosphate deficiency (G6PD).

13. Currently taking a Class Ia or Class III antiarrhythmic or other medication causally associated with prolonging QTc.

14. Use of aspirin with platelet counts < 50,000/µl.

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Drug:
Arsenic Trioxide

Decitabine


Locations

Country Name City State
United States Washington University St. Louis Missouri

Sponsors (2)

Lead Sponsor Collaborator
Washington University School of Medicine Cephalon

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary To define the maximum tolerated dose and dose-limiting toxicities during four cycles of combination decitabine, arsenic trioxide and ascorbic acid in patients with myelodysplastic syndromes (MDS) previously untreated with hypomethylating agents. 4 months after the final patient on the final cohort starts treatment Yes
Secondary To estimate the rate of complete remission (CR) and partial remission (PR) after four cycles of therapy in patients with MDS. After 4 cycles of treatment No
Secondary To determine the rate of hematologic improvement Weekly through the end of treatment No
Secondary To determine the rate of transfusion independence Through completion of treatment No
Secondary To determine the time to disease progression to AML Every 4 weeks during treatment and then every 2 months for 2 years after the first dose of study drug No
Secondary To determine the rate of cytogenetic response After every 2 cycles No
Secondary To determine the rate of overall survival Every 4 weeks during treatment and then every 2 months for 2 years after the first dose of study drug No
Secondary To determine changes in bone marrow vascular density At baseline, end of cycle 2, end of cycle 4, and end of study No
Secondary To determine changes in angiogenic mRNA expression. Baseline, end of cycle 2, end of cycle 4, and end of study No