Clinical Trial: Belinostat (PXD101) to Treat Tumors of the Thymus at an Advanced Stage
Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: A Multicenter Phase II Study of Belinostat (PXD-101) in Previously Chemotherapy Treated Thymoma and Thymic Carcinoma
Brief Summary:
Background:
- Cisplatin-containing chemotherapy is the standard treatment for advanced tumors of the thymus that cannot be removed surgically.
- New treatment options are needed for patients with advanced tumors of the thymus that do not improve with cisplatin-containing therapy.
- Belinostat is a drug that inhibits enzymes called histone deacetylase. Histone deacetylase inhibitors have shown promising activity in many cancers and may be useful in treating patients with thymic tumors.
Objectives:
-To assess the safety and effectiveness of belinostat for treatment of malignant thymic tumors in patients who failed after standard treatment.
Eligibility:
-Patients 18 years of age or older with an advanced thymic tumor that has progressed after treatment with platinum-containing chemotherapy.
Design:
- Patients receive belinostat treatment in 21-day cycles. The drug is given as an infusion through a vein during days 1 through 5 of each cycle. Treatment cycles continue as long as the medicine is tolerated and the cancer does not worsen.
- Patients have a physical examination and several blood tests during every cycle.
- Patients have an electrocardiogram every cycle before starting the belinostat infusion and again on the last day of the infusion.
- Patients undergo computed tomography (CT) or other imaging test, such as ultrasound or MRI, every two cycles
Detailed Summary:
Background:
Cisplatin-containing chemotherapy is the standard of care for advanced unresectable thymoma and thymic carcinoma. New options for treatment are necessary in patients with advanced thymoma and thymic carcinoma that have progressed on cisplatin-containing therapy. Histone deacetylase inhibitors have shown promising clinical activity in many malignancies. Belinostat, a potent histone deacetylase inhibitor, is a promising agent, which may have activity in patients with thymic malignancies.
Objectives:
- To assess objective response rate according to the Response Evaluation Criteria in Solid Tumors (RECIST) criteria for belinostat monotherapy.
- To assess safety of belinostat.
- To evaluate time to response, duration of response, progression-free survival and overall survival.
- To identify chromosomal gains or losses and gene methylation status by comparative genomic hybridization and methylation microarrays in thymoma / thymic carcinomas in relation to clinical outcome.
- To assess expression levels of particular proteins on the pretreatment tumor sample, by immunohistochemistry (IHC) and correlate them with clinical outcome.
- To identify and measure changes in p21 and protein hyperacetylation in peripheral blood mononuclear cells (PBMC), and vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) in plasma and correlate them with clinical outcome.
- To measure changes in modulation of T-cell function in peripheral blood lymphocytes.
Eligibility:
Current Primary Outcome:
- Number of Participants With a Partial Response [ Time Frame: 25.5 months ]Response is defined by the Response Evaluation Criteria in Solid Tumor (RECIST). Partial response (PR) is at least a 30% decrease in the sum of the longest diameter (LD) of target lesions, taking as reference the baseline sum LD. For additional details about the RECIST criteria see the protocol Link module.
- Chromosomal Gains or Losses in Comparative Genomic Hydridization in Thymoma and Thymic Cancer [ Time Frame: 46 months ]Utilize a patients tumor tissue to determine if there is any correlation between chromosomal gains or losses in comparative genomic hybridization in thymoma and thymic carcinomas and clinical outcomes.
Original Primary Outcome: Objective response rate (complete response plus partial response) according to RECIST criteria
Current Secondary Outcome: Number of Participants With Adverse Events [ Time Frame: 26 months ]
Here are the number of participants with adverse events. For a detailed list of adverse events see the adverse event module.
Original Secondary Outcome:
- Durations of response, progression-free survival, and overall survival
- Changes in p21, VEGF, and other angiogenic cytokines as measured by immunohistochemistry
Information By: National Institutes of Health Clinical Center (CC)
Dates:
Date Received: December 25, 2007
Date Started: December 2007
Date Completion:
Last Updated: September 29, 2015
Last Verified: September 2015
