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PXD101 in Treating Patients With Relapsed or Refractory Aggressive B-Cell Non-Hodgkin's Lymphoma

This study has been completed.
Information provided by (Responsible Party):
National Cancer Institute (NCI) Identifier:
First received: March 15, 2006
Last updated: April 23, 2014
Last verified: April 2013
This phase II trial is studying how well PXD101 works in treating patients with relapsed or refractory aggressive B-cell non-Hodgkin's lymphoma. 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.

Condition Intervention Phase
Recurrent Adult Burkitt Lymphoma
Recurrent Adult Diffuse Large Cell Lymphoma
Drug: belinostat
Phase 2

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Phase II Study of PXD101 (NSC-726630) in Relapsed and Refractory Aggressive B-Cell Lymphomas

Resource links provided by NLM:

Further study details as provided by National Cancer Institute (NCI):

Primary Outcome Measures:
  • Assess Number of Patients Who Achieve Confirmed and Unconfirmed Complete Response (CR) or Partial Response (PR) [ Time Frame: assessed at week 8, and every 3 months for 3 years ]
    Complete Response(CR) is a complete disappearance of all disease with the exception of nodes. No new lesions. previously enlarged organs must have regressed and not be palpable. Bone marrow(BM) must be negative if positive at baseline. Normalization of markers. CR Unconfirmed (CRU) does not qualify for CR above, due to a residual nodal mass or an indeterminate BM. Partial Response(PR) is a 50% decrease in the SPD for up to 6 identified dominant lesions, including spleenic and hepatic nodules from baseline. No new lesions and no increase in the size of liver, spleen or other nodes.

Secondary Outcome Measures:
  • Overall Survival [ Time Frame: assessed every 3 months for 3 years ]
    Measured from time of registration to death, or last contact date

  • Progression-free Survival [ Time Frame: assessed at week 8, then every 3 months for 3 years ]
    Measured from date of registration to time of first documentation of progression or death, or last contact date. Progression is defined as a 50% increase in sum of products of greatest diameters (SPD) of target measurable lesions over the smallest sum observed (over baseline if no decrease during therapy) using the same techniques as baseline; appearance of a new lesion/site; unequivocal progression of non-measurable disease in the opinion of the treating physician; death due to disease without prior documentation of progression.

Enrollment: 22
Study Start Date: January 2006
Study Completion Date: August 2010
Primary Completion Date: January 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Arm I

Patients will receive an infusion of PXD101 once a day for 5 days. Treatment may repeat every 3 weeks for up to 2 years. Some patients will also undergo core biopsy and blood collection for laboratory studies before and after treatment.

After finishing treatment, patients will be evaluated every 3-6 months for up to 3 years.

Drug: belinostat
Given IV
Other Name: PXD101

Detailed Description:


I. Evaluate response rate in patients with relapsed or refractory aggressive B-cell non-Hodgkin's lymphoma treated with PXD101.


I. Determine the toxicity of this drug in these patients. II. Estimate the 6-month progression-free survival rate in patients treated with this drug.


I. Determine the major histocompatability complex of class II proteins (HLA-DR, -DP, -DQ), TUNEL, and CD8 infiltration status, by immunochemistry on paired pre- and post-treatment tumor samples, in the first 20 patients enrolled.

II. Measure CIITA and HLA-DR mRNA expression using quantitative reverse transcriptase-polymerase chain reaction and determine, preliminarily, the associations of these markers with progression-free survival.

III. Evaluate paired pre- and post-treatment peripheral blood mononuclear cells from patients for histone acetylation status and determine correlation with findings from duplicate experiments on pre- and post-needle core biopsies.

OUTLINE: This is a multicenter study.

Patients receive PXD101 IV over 30 minutes on days 1-5. Treatment repeats every 21 days for up to 2 years in the absence of disease progression or unacceptable toxicity.

Needle core biopsies and peripheral blood mononuclear cells are obtained from the first 20 patients pre- and post-treatment for biomarker correlative studies.

After completion of study treatment, patients are followed every 3-6 months for up to 3 years.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Biopsy-proven (no needle aspirations or cytologies) aggressive B-cell non-Hodgkin's lymphoma (NHL), including 1 of the following histology subtypes:

    • Diffuse large cell NHL
    • Burkitt's or Burkitt-like NHL
    • Primary mediastinal NHL
  • Relapsed or refractory disease
  • Bidimensionally measurable disease
  • Transformed NHL allowed
  • Not eligible for stem cell transplantation (for patients registered to study at first relapse)
  • No active CNS involvement by lymphoma
  • Zubrod performance status 0-2
  • No history of allergic reactions attributed to compounds of similar chemical or biologic composition to PXD101
  • Absolute neutrophil count >= 1,500/mm^3
  • Platelet count>=100,000/mm^3
  • WBC >= 3,000/mm^3
  • Creatinine < 2 times upper limit of normal (ULN) OR creatinine clearance >= 60 mL/min
  • No significant EKG abnormalities
  • Bilirubin normal
  • SGOT/SGPT < 2.5 times ULN (=< 5 times ULN if liver involvement)
  • No long QT syndrome or marked baseline prolongation of QT/QTc interval (e.g., repeated demonstration of QTc interval > 500 msec)
  • No other significant cardiovascular disease, including any of the following:

    • Unstable angina pectoris
    • Uncontrolled hypertension
    • Congestive heart failure related to primary cardiac disease
    • Any condition requiring anti-arrhythmic therapy
    • Ischemic or severe valvular heart disease
    • Myocardial infarction within the past 6 months
  • No major surgery within 28 days prior to study entry
  • No concurrent combination antiretroviral therapy for HIV-positive patients
  • No concurrent medication that may cause Torsades de Pointes (i.e., prolongation of the QT interval > 500 msec)
  • At least 14 days since prior radiotherapy
  • At least 2 weeks since prior valproic acid or any other histone deacetylase inhibitor
  • No clinical evidence of any of the following:

    • Severe peripheral vascular disease
    • Diabetic ulcers or venous stasis ulcers
    • History of deep venous or arterial thrombosis within the past 3 months
  • Radioimmunotherapy is considered a chemotherapy regimen
  • Single-agent rituximab is not considered a chemotherapy regimen
  • Standard salvage chemotherapy followed by autologous stem cell transplantation is considered 1 regimen
  • No known AIDS or HIV-associated complex
  • Not pregnant or nursing
  • Fertile patients must use effective contraception
  • No other malignancy within the past 5 years except adequately treated basal cell or squamous cell skin cancer or in situ carcinoma of the cervix
  • At least 2 weeks since prior therapy and recovered
  • No more than 5 prior chemotherapy regimens
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Please refer to this study by its identifier: NCT00303953

  Show 123 Study Locations
Sponsors and Collaborators
National Cancer Institute (NCI)
Principal Investigator: Steven Bernstein Southwest Oncology Group
  More Information

Responsible Party: National Cancer Institute (NCI) Identifier: NCT00303953     History of Changes
Other Study ID Numbers: NCI-2009-01096
NCI-2009-01096 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) )
S0520 ( Other Identifier: Southwest Oncology Group )
S0520 ( Other Identifier: CTEP )
U10CA032102 ( US NIH Grant/Contract Award Number )
Study First Received: March 15, 2006
Results First Received: February 28, 2012
Last Updated: April 23, 2014

Additional relevant MeSH terms:
Lymphoma, Large B-Cell, Diffuse
Burkitt Lymphoma
Neoplasms by Histologic Type
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases
Lymphoma, B-Cell
Lymphoma, Non-Hodgkin
Epstein-Barr Virus Infections
Herpesviridae Infections
DNA Virus Infections
Virus Diseases
Tumor Virus Infections
Antineoplastic Agents
Histone Deacetylase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action processed this record on April 27, 2017