Phase II trial to study the effectiveness of bortezomib in treating patients who have persistent or recurrent ovarian epithelial cancer or primary peritoneal cancer. Bortezomib may stop the growth of cancer cells by blocking the enzymes necessary for their growth.
PRIMARY OBJECTIVES: I. Determine the antitumor activity of bortezomib in patients with persistent or recurrent platinum-sensitive ovarian epithelial or primary peritoneal carcinoma. II. Determine the nature and degree of toxicity of this regimen in these patients. OUTLINE: This is a multicenter study. Patients receive bortezomib IV twice weekly for 2 weeks. Courses repeat every 3 weeks in the absence of disease progression or unacceptable toxicity. Patients are followed every 3 months for 2 years, every 6 months for 3 years, and then annually thereafter.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
58
Gynecologic Oncology Group
Philadelphia, Pennsylvania, United States
Tumor Response Duration
RECIST 1.0 defines complete response as the disappearance of all target lesions and non-target lesions and no evidence of new lesions documented by two disease assessments at least 4 weeks apart. Partial response is defined as at least a 30% decrease in the sum of longest dimensions (LD) of all target measurable lesions taking as reference the baseline sum of LD. There can be no unequivocal progression of non-target lesions and no new lesions. Documentation by two disease assessments at least 4 weeks apart is required. In the case where the ONLY target lesion is a solitary pelvic mass measured by physical exam, which is not radiographically measurable, a 50% decrease in the LD is required. These patients will have their response classified according to the definitions stated above. Complete and partial responses are included in the objective tumor response rate.
Time frame: From study entry, up to 5 years
Frequency and Severity of Observed Adverse Events
Time frame: Up to 5 years
Objective Partial/Complete Tumor Response Based on the Gynecologic Oncology Group (GOG) Response Evaluation Criteria in Solid Tumors (RECIST) Criteria
Number of participants who experienced an objective tumor response up to 5 years. Per RECIST version 1.0 criteria: each target lesion must be \>= 20 mm when measured by conventional techniques, including palpation, plain x-ray, CT, and MRI, or \>= 10 mm when measured by spiral CT. Complete Response is a disappearance of all target and non-target lesions. Partial Response is at least a 30% decrease in the sum of longest dimensions (LD) of all target measurable lesions, taking as reference the baseline sum of LD.
Time frame: From study entry until disease progression/intolerable toxicity/study withdrawal
Overall Survival
Time frame: From study entry, up to 5 years following disease progression
Progression-Free Survival
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Progression is defined according to RECIST v1.0 as at least a 20% increase in the sum of LD target lesions taking as reference the smallest sum LD recorded since study entry, the appearance of one or more new lesions, death due to disease without prior objective documentation of progression, global deterioration in health status attributable to the disease requiring a change in therapy without objective evidence of progression, or unequivocal progression of existing non-target lesions.
Time frame: From study entry up to 5 years