This phase I/II trial is studying the side effects and best dose of fenretinide and to see how well it works when given together with rituximab in treating patients with B-cell non-Hodgkin lymphoma. Drugs used in chemotherapy, such as fenretinide, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Monoclonal antibodies, such as rituximab, can block cancer growth in different ways. Some find cancer cells and kill them or carry cancer-killing substances to them. Others interfere with the ability of cancer cells to grow and spread. Giving fenretinide together with rituximab may kill more cancer cells.
PRIMARY OBJECTIVES: I. To evaluate the safety of fenretinide delivered in a 5 of 7 day regimen. (Phase I) II. To estimate the efficacy (response rates) of fenretinide + rituximab in patients with B-cell non-Hodgkin lymphoma (NHL). (Phase II) SECONDARY OBJECTIVES: I. To perform pharmacokinetic studies on patients receiving fenretinide. (Phase I) II. To determine the intratumoral concentrations of fenretinide. (Phase I) III. To evaluate the in vivo mechanism of action of fenretinide. (Phase I) IV. To identify the predictors of response to fenretinide. (Phase I) V. To estimate the response rates, positron emission tomography (PET) response, overall survival (OS), progression-free survival (PFS), time to progression (TTP), and disease-free survival (DFS) of patients treated on this study. (Phase I) VI. To estimate the overall survival (OS), progression-free survival (PFS), time to progression (TTP), disease-free survival (DFS), and PET responses of patients treated on this study. (Phase II) VII. To perform pharmacokinetic studies on patients receiving fenretinide. (Phase II) VIII. To determine the intratumoral concentration of fenretinide. (Phase II) IX. To identify the predictors of response to fenretinide and fenretinide + rituximab in B-NHL. (Phase II) X. To evaluate the in vivo mechanism of action of fenretinide in B-NHL. (Phase II) OUTLINE: This is a phase I, dose-escalation study of fenretinide followed by a phase II study. PHASE I: Patients receive fenretinide orally (PO) twice daily (BID) on days 1-5. Treatment repeats weekly for at least 4 weeks in the absence of disease progression or unacceptable toxicity. PHASE II: Patients receive fenretinide PO BID on days 1-5 in weeks 1-8 and rituximab intravenously (IV) once weekly in weeks 5-8. Treatment continues in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up periodically.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
32
Given PO
Given IV
University of Washington Medical Center
Seattle, Washington, United States
Safety, in Terms of Dose-limiting Toxicity (DLT) of 2 Daily Doses of Single Agent Fenretinide (Phase I)
A group of 3 patients would start treatment ast the dose of 900mg/m\^2 BID, and if none of the 3 experienced a DLT, another 3 would then be treated at that dose. Dose Limiting Toxicity was defined as any related toxicity of grade 4 or 5 on or before the completion of 4 weeks of therapy. Per response evaluation criteria 1999 Cheson Response Criteria for Malignant Lymphoma (CHESON99) for target lesions assessed by either CT or MRI: Complete Response (CR): Complete disappearance of all measurable and non-measurable disease; Complete Response Unconfirmed (CRU): Complete disappearance of all measurable and non-measurable disease, with the exception of all residual nodal masses \>1.5cm in Greatest Transverse Diameter (GTD) reduced by 75% in Sum of the Product of the greatest Diameters (SPD); Partial Response (PR): 50% decrease in the SPD.
Time frame: Number of participants that experienced a dose-limiting toxicity
Response Rates of B-Non-Hodgkin Lymphoma to the Combination of Rituximab and Fenretinide (Phase II)
The trial was stratified into rituximab-naïve and rituximab pre-treated patients, and the target response rates for these groups were expected to be 30% and 10%, respectively. The numbers reported below are subjects who achieved a response of partial response or better.
Time frame: Up to 7 years
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