Completed

A Phase I Study of Triapine in Combination With High Dose Ara-C (Hi-DAC) in Patients With Advanced Hematologic Malignancies

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What is being tested

cytarabine

+ triapine
+ laboratory biomarker analysis
Drug
Other
Who is being recruted

Blast Crisis
+23

+ Bone Marrow Diseases
+ Cell Transformation, Neoplastic
Over 18 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Phase 1
Interventional
Study Start: January 2004
See protocol details

Summary

Principal SponsorNational Cancer Institute (NCI)
Last updated: January 18, 2026
Sourced from a government-validated database.Claim as a partner
Study start date: January 1, 2004Actual date on which the first participant was enrolled.

PRIMARY OBJECTIVES: I. Determine the maximum tolerated dose of 3-AP (Triapine) administered with high-dose cytarabine in patients with advanced hematologic malignancies. SECONDARY OBJECTIVES: I. Determine the clinical activity of this regimen in these patients. II. Determine the effect of treatment with 3-AP (Triapine) on intracellular levels of cytarabine in these patients. OUTLINE: This is a dose-escalation study of 3-AP (Triapine). Patients receive high-dose cytarabine IV over 2 hours on days 1-5 and 3-AP (Triapine) IV over 2 hours on days 2-5. Treatment repeats every 28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity. Cohorts of 3-6 patients in each stratum receive escalating doses of 3-AP (Triapine) until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 3 or 2 of 6 patients experience dose-limiting toxicity. Patients are followed for up to 2 years. PROJECTED ACCRUAL: A total of 6-48 patients (3-24 per stratum) will be accrued for this study within 15-24 months.

Official TitleA Phase I Study of Triapine in Combination With High Dose Ara-C (Hi-DAC) in Patients With Advanced Hematologic Malignancies 
NCT00077181
Principal SponsorNational Cancer Institute (NCI)
Last updated: January 18, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details
48 patients to be enrolledTotal number of participants that the clinical trial aims to recruit.
Treatment Study
These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.

How participants are assigned to different groups/arms
In this clinical study, all participants receive the same treatment. Since there is only one group, there is no need for randomization or assignment to different arms. This type of study is often used to test a new treatment without comparing it to another.

Other Ways to Assign Participants
Randomized allocation: Participants are assigned randomly, like flipping a coin, to ensure fairness and reduce bias.
Non-randomized allocation: Participants are assigned based on specific factors, such as their medical condition or a doctor's decision.

How treatments are given to participants
In this study, all participants receive the same treatment. This approach is often used to evaluate the effects of a single intervention without comparing it to another.

Other Ways to Assign Treatments
Parallel assignment: Participants are split into separate groups, each receiving a different treatment.
Cross-over assignment: Participants switch between treatments during the study.
Factorial assignment: Participants receive different combinations of treatments.
Sequential assignment: Participants receive treatments one after another in a specific order, possibly based on individual responses.
Other assignment: Treatment assignment does not follow a standard or predefined design.

How the effectiveness of the treatment is controlled
In a non placebo-controlled study, no participants receive an inert substance (placebo) to compare outcomes. Instead, all participants receive either the experimental treatment or an alternative treatment (often the Standard of Care). This method allows researchers to compare the effects of the experimental treatment with those of a different active intervention, rather than a placebo.

Other Options
Placebo-Controlled: A placebo is used to compare the effects of the experimental treatment with those of an inert substance, isolating the true treatment effect.

How the interventions assigned to participants is kept confidential
Everyone involved in the study knows which treatment is being given. This is typically used when it's not possible or necessary to hide the treatment details from participants or researchers.

Other Ways to Mask Information
Single-blind: Participants do not know which treatment they are receiving, but researchers do.
Double-blind: Neither participants nor researchers know which treatment is given.
Triple-blind: Participants, researchers, and outcome assessors do not know which treatment is given.
Quadruple-blind: Participants, researchers, outcome assessors, and care providers all do not know which treatment is given.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria
Any sexBiological sex of participants that are eligible to enroll.
Over 18 YearsRange of ages for which participants are eligible to join.
Healthy volunteers not allowedIf individuals who are healthy and do not have the condition being studied can participate.
Conditions
Pathology
Blast Crisis
Bone Marrow Diseases
Cell Transformation, Neoplastic
Chronic Disease
Hematologic Diseases
Immune System Diseases
Immunoproliferative Disorders
Leukemia
Leukemia, Lymphoid
Leukemia, Myeloid
Lymphatic Diseases
Lymphoproliferative Disorders
Myeloproliferative Disorders
Neoplasms
Neoplasms by Histologic Type
Neoplasms by Site
Neoplastic Processes
Pathologic Processes
Recurrence
Leukemia, Myelogenous, Chronic, BCR-ABL Positive
Leukemia, Myeloid, Accelerated Phase
Leukemia, Myeloid, Acute
Hematologic Neoplasms
Disease Attributes
Precursor Cell Lymphoblastic Leukemia-Lymphoma
Carcinogenesis
Criteria

Inclusion Criteria: * Histologically confirmed diagnosis of 1 of the following hematologic malignancies: * Relapsed or refractory acute myeloid leukemia (AML) * Relapsed or refractory acute lymphoblastic leukemia * Secondary AML, including AML arising from antecedent hematologic diseases, such as myelodysplastic syndromes or myeloproliferative disorders OR therapy-related AML * Chronic myeloid leukemia in accelerated or blast phase * Refractory to standard therapy or no standard therapy exists * No known brain metastases * Performance status - CALGB 0-2 * Performance status - Karnofsky 60-100% * No G6PD deficiency * Bilirubin \< 2.0 mg/dL (unless due to Gilbert's syndrome) * AST and ALT \< 2.5 times upper limit of normal (ULN) * Creatinine \< 1.5 times ULN * No symptomatic congestive heart failure * No unstable angina pectoris * No cardiac arrhythmia * No pulmonary disease requiring oxygen * Not pregnant or nursing * Negative pregnancy test * Fertile patients must use effective contraception * No prior allergic reactions attributed to compounds of similar chemical or biological composition to study drugs * No neuropathy * No ongoing or active infection * No psychiatric illness or social situation that would preclude study compliance * No other concurrent uncontrolled illness * No concurrent biologic agents * At least 72 hours since prior hydroxyurea * At least 2 weeks since other prior chemotherapy (6 weeks for mitomycin or nitrosoureas) * No other concurrent chemotherapy * At least 2 weeks since prior radiotherapy * No concurrent radiotherapy * Recovered from all prior therapy * At least 4 weeks since prior investigational agents * No other concurrent investigational therapy * No other concurrent anticancer therapy * No concurrent combination antiretroviral therapy for HIV-positive patients

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives
One single intervention group 

is designated in this study

This study does not include a placebo group 

Treatment Groups
Group I
Experimental
Patients receive high-dose cytarabine IV over 2 hours on days 1-5 and triapine IV over 2 hours on days 2-5. Treatment repeats every 28 days for up to 4 courses in the absence of disease progression or unacceptable toxicity.

Given IV

Given IV

Correlative studies
Study Objectives
Primary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.
This study has 1 location
Suspended
University of Chicago Comprehensive Cancer CenterChicago, United StatesSee the location
CompletedOne Study Center