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About
This phase II trial is studying how well giving bortezomib together with gemcitabine works in treating patients with recurrent or metastatic nasopharyngeal cancer. Bortezomib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as gemcitabine, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving bortezomib together with gemcitabine may kill more tumor cells
Full description
OBJECTIVES: Primary I. Assess the response probability (confirmed and unconfirmed, complete and partial responses) and 3-month progression-free survival rate in patients with metastatic or recurrent nasopharyngeal carcinoma (NPC) who are treated with bortezomib.
Secondary I. Estimate 1-year progression-free survival and assess quantitative toxicities in this group of patients treated with bortezomib.
II. Evaluate the response probability (confirmed and unconfirmed, complete and partial) in the subset of patients who progress on bortezomib, with measurable disease at the time of progression, and go on to receive bortezomib and gemcitabine hydrochloride combination therapy.
III. Estimate 1-year overall survival of all patients treated with this regimen.
IV. Estimate 6-month progression-free survival from the start of combination therapy and assess quantitative toxicities in the subset of patients who progress on bortezomib and receive combination therapy.
V. Explore, in a preliminary manner, the relationship between changes in Epstein-Barr virus DNA level, NF-kB DNA-binding activity, and methylation status of E-cadherin promoter with clinical outcomes.
OUTLINE: This is a multicenter study of bortezomib.
Patients receive bortezomib IV on days 1, 4, 8, and 11. Treatment repeats every 21 days in the absence of disease progression or unacceptable toxicity. Patients achieving a complete response (CR) receive 2 additional courses of treatment with bortezomib.
Patients who experience disease progression on single-agent bortezomib and did not receive prior gemcitabine hydrochloride may begin combination therapy within 10-28 days of the last dose of bortezomib. Patients receive gemcitabine hydrochloride IV over 30 minutes on days 1 and 8 and bortezomib IV on days 1, 4, 8, 11. Treatment repeats every 21 days in the absence of disease progression or unacceptable toxicity. Patients achieving a CR receive 2 additional courses beyond the confirmed CR.
After the completion of study treatment, patients are followed periodically for up to 3 years.
PROJECTED ACCRUAL: A total of 50 patients will be accrued for this study.
Enrollment
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Inclusion and exclusion criteria
Inclusion Criteria:
Histologically confirmed nasopharyngeal carcinoma (NPC) of one of the following subtypes:
Disease meets one of the following stage criteria:
Measurable disease
No known CNS metastases
Serum creatinine ≤ 1.5 times upper limit of normal (ULN) OR creatinine clearance ≥ 60 mL/min
Absolute neutrophil count ≥ 1,500/mm³
Platelet count ≥ 100,000/mm³
Bilirubin normal
SGOT or SGPT ≤ 2.5 times ULN
Zubrod performance status 0-2
No peripheral neuropathy > grade 1
No prior malignancy except adequately treated basal cell or squamous cell skin cancer, in situ cervical cancer, or other cancer from which the patient has been disease-free for 5 years
Not pregnant or nursing
Fertile patients must use effective contraception
More than 6 months since prior myocardial infarction
No New York Heart Association class III or IV cardiac problems
No uncontrolled angina
No severe uncontrolled ventricular arrhythmias
No acute ischemia by ECG
No active conduction system abnormalities
No known hypersensitivity to bortezomib, boron, or mannitol
See Disease Characteristics
No prior therapy with gemcitabine hydrochloride, bortezomib, or other proteasome inhibitors
No more than one prior chemotherapy regimen for the treatment of metastatic or recurrent NPC
At least 24 weeks since prior adjuvant chemotherapy
At least 24 weeks since prior chemotherapy as a radiosensitizer for initial locally advanced disease
At least 28 days since prior radiotherapy and recovered
At least 28 days since prior surgery and recovered
No other concurrent therapy for NPC, including any of the following:
No colony-stimulating factor therapy during the first course of study therapy
No concurrent highly active antiretroviral therapy (HAART) in HIV-positive patients
Primary purpose
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50 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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