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PXD101 in Treating Patients With Acute Myeloid Leukemia

A Phase 2 Study of PXD101 in Patients With Relapsed or Refractory Acute Myelogenous Leukemia or Patients Over 60 With Newly-Diagnosed Acute Myelogenous Leukemia

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00357032
Enrollment
12
Registered
2006-07-27
Start date
2006-05-31
Completion date
2010-07-31
Last updated
2018-04-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Adult Acute Myeloid Leukemia With 11q23 (MLL) Abnormalities, Adult Acute Myeloid Leukemia With Del(5q), Adult Acute Myeloid Leukemia With Inv(16)(p13;q22), Adult Acute Myeloid Leukemia With t(15;17)(q22;q12), Adult Acute Myeloid Leukemia With t(16;16)(p13;q22), Adult Acute Myeloid Leukemia With t(8;21)(q22;q22), Recurrent Adult Acute Myeloid Leukemia, Untreated Adult Acute Myeloid Leukemia

Brief summary

This phase II trial is studying how well PXD101 works in treating patients with relapsed or refractory acute myeloid leukemia or older patients with newly diagnosed acute myeloid leukemia. PXD101 may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth and by blocking blood flow to the cancer.

Detailed description

PRIMARY OBJECTIVES: I. Evaluate the response rate (complete response and partial response) in patients with acute myeloid leukemia treated with PXD101. SECONDARY OBJECTIVES: I. Evaluate the overall survival of these patients. II. Evaluate the duration of response in these patients. III. Evaluate the toxicity of this drug in these patients. TERTIARY OBJECTIVES: I. Evaluate molecular response to PXD101. OUTLINE: Patients receive PXD101 IV over 30 minutes on days 1-5. Treatment repeats every 21 days for 6-12 months in the absence of disease progression or unacceptable toxicity. Blood and bone marrow samples are obtained before and after study treatment for laboratory studies. After completion of study treatment, patients are followed periodically for 1 year.

Interventions

DRUGbelinostat

Given IV

OTHERlaboratory biomarker analysis

Correlative studies

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients must have histologically or cytologically confirmed acute myelogenous leukemia * The diagnosis must be made by bone marrow aspirate and biopsy; patients must have routine cytochemical evaluation along with immunophenotyping done by flow cytometry; cytogenetic analysis must also be performed * For patients age 18-59 years, at least one prior regimen of induction chemotherapy is required; patients who have been treated with bone marrow or stem cell transplantation are eligible; there is no prior therapy requirement for patients age \> 60 * Patients for whom potentially curative treatment is available must be offered this treatment and decline * Life expectancy of greater than 3 months * ECOG performance status =\< 2 (Karnofsky \>= 60%) * Serum total bilirubin =\< 2.0 mg/dl * AST and ALT =\< 2.5 times upper limit of normal (ULN) * Creatinine clearance \>= 60 mL/min OR creatinine \< 1.5 times ULN * Eligibility of patients receiving any medications or substances known to affect or with the potential to affect the activity or pharmacokinetics of PXD101 will be determined following review of their case by the principal investigator * Efforts should be made to switch patients with gliomas or brain metastases who are taking enzyme inducing anticonvulsant agents to other medications * Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation; should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately * Ability to understand and the willingness to sign a written informed consent document * Patients taking hydroxyurea for the purpose of cytoreduction should discontinue this medication at least 24 hours prior to the initiation of therapy with PXD101

Exclusion criteria

* Patients who have had chemotherapy or radiotherapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier * Patients may not be receiving any other investigational agents * Patients with known central nervous system (CNS) disease should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events * History of allergic reactions attributed to compounds of similar chemical or biologic composition to PXD101 * Patients may not have had prior treatment with another HDAC inhibitor within 1 week of initiation of therapy with PXD101; patients receiving valproic acid should stop this medication at least 1 week prior to therapy with PXD101 * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness that could compromise compliance with study requirements * Pregnant women are excluded from this study; breastfeeding should be discontinued if the mother is treated with PXD101 * HIV-positive patients are ineligible * Patients with a marked baseline prolongation of QT/QTc interval (e.g. repeated demonstration of a QTc interval 500 msec), Long QT Syndrome, or the required use of concomitant medication on PXD101 infusion days that may cause Torsade de Pointes (including disopyramide, dofetilide, ibutilide, procainamide, quinidine, sotalol, bepridil, amiodarone, arsenic trioxide, cisapride, lidoflazine, clarithromycin, erythromycin, halofantrine, pentamidine, sparfloxacin, domperidone, droperidol, chlorpromazine, haloperidol, mesoridazine, thioridazine, pimozide, and methadone) * Significant cardiovascular disease including unstable angina pectoris, uncontrolled hypertension, congestive heart failure related to primary cardiac disease, a condition requiring anti-arrhythmic therapy, ischemic or severe valvular heart disease, or a myocardial infarction within 6 months prior to trial entry

Design outcomes

Primary

MeasureTime frameDescription
Complete Response RateUp to 1 yearClinical responses were measured according to International Working Group criteria. Bone marrow studies were repeated at a minimum of every three cycles. Per International Working Group criteria: Complete Response (CR): Repeat bone marrow show \<5% myeloblasts, and peripheral blood evaluations lasting \>=2 months of hemoglobin(\>110 g/L), neutrophils(\>=1.5x10\^9/L), platelets(\>=100x10\^9/L), blasts (0%) and no dysplasia

Secondary

MeasureTime frameDescription
Overall SurvivalUp to 1 yearSurvival endpoints will be summarized by the method of Kaplan-Meier
Duration of ResponseUp to 1 yearFrom time of documented treatment response (CR or PR) until progression of death. Complete Response (CR): Repeat bone marrow show \<5% myeloblasts, and peripheral blood evaluations lasting \>=2 months of hemoglobin(\>110 g/L), neutrophils(\>=1.5x10\^9/L), platelets(\>=100x10\^9/L), blasts (0%) and no dysplasia. Partial Resonse (PR): requires the same hematologic values for a CR but with a decrease of at least 50% in the percentage of blasts to a post-treatment value of 5% to 25% in the bone marrow aspirate. (If the pre-treatment blast percentage was 50-100%, this must decrease to a value between 5-25%. If the pre-treatment blast percentage was 20-49%, this must decrease by at least half to a value greater than 5%.) A value ≤ 5% is also considered a PR if Auer rods are present.
Toxicity SummaryUp to 1 yearAssessed using Common Terminology Criteria for Adverse Events (CTCAE) version 3.0. Grade 3 and above toxicities possibly, probably or definitely related to treatment.

Countries

United States

Participant flow

Participants by arm

ArmCount
Treatment (Belinostat)
Patients receive PXD101 IV over 30 minutes on days 1-5. Treatment repeats every 21 days for 6-12 months in the absence of disease progression or unacceptable toxicity. belinostat: Given IV laboratory biomarker analysis: Correlative studies
12
Total12

Baseline characteristics

CharacteristicTreatment (Belinostat)
Age, Continuous78 years
Region of Enrollment
United States
12 participants
Sex: Female, Male
Female
7 Participants
Sex: Female, Male
Male
5 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
10 / 12
serious
Total, serious adverse events
8 / 12

Outcome results

Primary

Complete Response Rate

Clinical responses were measured according to International Working Group criteria. Bone marrow studies were repeated at a minimum of every three cycles. Per International Working Group criteria: Complete Response (CR): Repeat bone marrow show \<5% myeloblasts, and peripheral blood evaluations lasting \>=2 months of hemoglobin(\>110 g/L), neutrophils(\>=1.5x10\^9/L), platelets(\>=100x10\^9/L), blasts (0%) and no dysplasia

Time frame: Up to 1 year

ArmMeasureValue (NUMBER)
Treatment (Belinostat)Complete Response Rate0 percentage of subjects
Secondary

Duration of Response

From time of documented treatment response (CR or PR) until progression of death. Complete Response (CR): Repeat bone marrow show \<5% myeloblasts, and peripheral blood evaluations lasting \>=2 months of hemoglobin(\>110 g/L), neutrophils(\>=1.5x10\^9/L), platelets(\>=100x10\^9/L), blasts (0%) and no dysplasia. Partial Resonse (PR): requires the same hematologic values for a CR but with a decrease of at least 50% in the percentage of blasts to a post-treatment value of 5% to 25% in the bone marrow aspirate. (If the pre-treatment blast percentage was 50-100%, this must decrease to a value between 5-25%. If the pre-treatment blast percentage was 20-49%, this must decrease by at least half to a value greater than 5%.) A value ≤ 5% is also considered a PR if Auer rods are present.

Time frame: Up to 1 year

Population: There were no formal CRs or PRs seen among the first cohort of 12 patients, resulting in the study's closure. As a result data were not collected.The study was completed as planned and stopped due to futility as written per protocol. It was not terminated prematurely as accrual proceeded per protocol.

Secondary

Overall Survival

Survival endpoints will be summarized by the method of Kaplan-Meier

Time frame: Up to 1 year

ArmMeasureValue (MEDIAN)
Treatment (Belinostat)Overall Survival9.1 Months
Secondary

Toxicity Summary

Assessed using Common Terminology Criteria for Adverse Events (CTCAE) version 3.0. Grade 3 and above toxicities possibly, probably or definitely related to treatment.

Time frame: Up to 1 year

ArmMeasureGroupValue (NUMBER)
Treatment (Belinostat)Toxicity SummaryGrade 4 : Mucositis/stomatitis0 participants
Treatment (Belinostat)Toxicity SummaryGrade 4 : Nausea0 participants
Treatment (Belinostat)Toxicity SummaryGrade 4 : Prolonged QTc interval0 participants
Treatment (Belinostat)Toxicity SummaryGrade 4 : Hematoma1 participants
Treatment (Belinostat)Toxicity SummaryGrade 3 : Dehydration1 participants
Treatment (Belinostat)Toxicity SummaryGrade 3 : Febrile neutropenia1 participants
Treatment (Belinostat)Toxicity SummaryGrade 3 : Hematoma0 participants
Treatment (Belinostat)Toxicity SummaryGrade 3 : Mucositis/stomatitis1 participants
Treatment (Belinostat)Toxicity SummaryGrade 3 : Nausea1 participants
Treatment (Belinostat)Toxicity SummaryGrade 3 : Prolonged QTc interval1 participants
Treatment (Belinostat)Toxicity SummaryGrade 3 : Sodium, serum-low1 participants
Treatment (Belinostat)Toxicity SummaryGrade 4 : Dehydration0 participants
Treatment (Belinostat)Toxicity SummaryGrade 4 : Febrile neutropenia0 participants
Treatment (Belinostat)Toxicity SummaryGrade 4 : Sodium, serum-low0 participants

Source: ClinicalTrials.gov · Data processed: Mar 9, 2026