This phase I trial is studying the side effects and best dose of 7-hydroxystaurosporine when given together with perifosine in treating patients with relapsed or refractory acute leukemia, chronic myelogenous leukemia, or myelodysplastic syndromes. 7-Hydroxystaurosporine may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as perifosine, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving 7-hydroxystaurosporine together with perifosine may kill more cancer cells.
PRIMARY OBJECTIVES: I. Define the maximum tolerated dose and recommended phase II dose of UCN-01 (7-hydroxystaurosporine) administered after perifosine in patients with relapsed or refractory acute leukemia, chronic myelogenous leukemia, or high risk myelodysplastic disorders. SECONDARY OBJECTIVES: I. Evaluate the safety and toxicity of UCN-01 administered after perifosine in these patients. II. Evaluate the safety and toxicity of perifosine administered after UCN-01 in these patients. III. Document responses in patients treated with this regimen. IV. Observe the pharmacokinetics of both perifosine and UCN-01 when administered in combination. V. Study the pharmacodynamics of perifosine alone, UCN-01 alone, and in combination in leukemic blast cells. OUTLINE: This is a multicenter, dose-escalation study of 7-hydroxystaurosporine. The first patients enrolled in the study are assigned to arm 1. Once the maximum tolerated dose (MTD) is determined in arm 1, subsequent patients are enrolled in arm 2. ARM 1: Patients receive a loading dose of oral perifosine every 6 hours on day 1 followed by a maintenance dose once daily on days 2-28 of course 1 and then once daily on days 1-28 in all subsequent courses. Patients also receive 7-hydroxystaurosporine intravenously (IV) over 3 hours on day 4. Cohorts of 3-6 patients receive escalating doses of 7-hydroxystaurosporine until the MTD is determined. The MTD is defined as the dose preceding that at which 2 of 6 patients experience dose-limiting toxicity. ARM 2: Patients receive 7-hydroxystaurosporine IV over 3 hours on day 1 at the MTD determined in group I. Patients also receive oral perifosine as a loading dose every 6 hours on day 4 followed by a maintenance dose once daily on days 5-28 of course 1 and then once daily on days 1-28 in all subsequent courses. In both groups, treatment repeats every 28 days for ≥ 2 courses in the absence of disease progression or unacceptable toxicity. Patients who achieve a complete remission (CR) or a CR with incomplete hematologic recovery receive 4 additional courses beyond documentation of CR. Patients who achieve a partial remission or hematologic improvement may continue treatment in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed for 30 days and then periodically thereafter.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
30
University of Maryland Greenebaum Cancer Center
Baltimore, Maryland, United States
Maximum tolerated dose of 7-hydroxystaurosporine administered after perifosine
Evaluated according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.0. The highest dose with none or one DLT observed in six patients will be declared as MTD. To ensure the toxicity at the MTD is acceptable, additional 6 patients will be accrued at the MTD.
Time frame: Course 1 (first 28 days)
Response rate, determined by improvement of blast cell count, degree of marrow infiltration by tumor cells, and improvement in peripheral blood count
For patients with acute leukemias we will use revised International Working Group (IWG) response criteria as published by Cheson et al. For patients with MDS we will use IWG response assessment for MDS. 90% confidence interval (CI) will be provided.
Time frame: Baseline, at the end of course 1 (day 21-28), and any time that disease progression is suspected
Progression free survival
Estimated using the Kaplan-Meier method.
Time frame: The time between the study entry and the first date that relapse or progressive disease is objectively documented, or death from any cause occurs
Disease specific survival and survival Rate
Estimated using the Kaplan-Meier method.
Time frame: 1 year
Overall survival
Estimated using the Kaplan-Meier method.
Time frame: From time of enrollment onto this study to the time of death
Pharmacokinetics and pharmacodynamics of both perifosine and 7-hydroxystaurosporine
Descriptive statistics and confidence intervals will be provided for molecular endpoints of drugs action: total akt, phospho akt, total erk, phospho erk, p21 in peripheral blood and marrow. We will also dichotomize pharmacokinetic levels at the median, and estimate differences in response rates for high versus low levels, using Fisher's exact test at the one-sided 0.05 significance level.
Time frame: Baseline and at weeks 1, 5, and 9
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