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Patients must have radiologically confirmed (ie, CAT scan and/or MRI) persistent or recurrent EC of epithelial origin that has progressed after prior platinum based chemotherapy or is refractory to platinum-based chemotherapy and has at least 2+ staining for Trop-2 |
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Must have availability of archival tumor tissue FFPE block for TROP-2 testing or newly acquired biopsy (FFPE block) from a metastatic site. Bone biopsies are not allowed |
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The diagnosis must be histologically confirmed by a gynecologic pathologist |
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All patients must have measurable disease. Measurable disease is defined as lesions which can be measured by physical examination or by means of medical imaging techniques. Measurable disease is defined as at least one lesion that can be accurately measured in at least one dimension (longest dimension to be recorded). Each lesion must be 20 mm when measured by conventional techniques, including palpation or plain x-ray, or 10 mm when measured by spiral CT and/or MRI. Ascites and pleural effusions are not to be considered measurable disease |
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Patients must have at least one "target lesion" to be used to assess response on this protocol as defined by RECIST v1.1. Tumors within a previously irradiated field will be designated as "non-target" lesions unless progression is documented or a biopsy is obtained to confirm persistence following completion of radiation therapy |
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After undergoing surgery, patients may be optimally or sub optimally debulked |
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Patients with measurable recurrent disease of any previous substage (I-IV) are eligible to enrollment |
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Patients must have adequate bone marrow function: WBC greater than or equal to 3,000/ul, Platelets greater than or equal to 75,000/ul, Granulocytes greater than or equal to 1500/ul |
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Patients must have adequate renal function: creatinine less than or equal to 2.0 mg/dL |
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Patients must have adequate hepatic function: Bilirubin 1.5 X laboratory normal. SGOT/SGPT 3 X laboratory normal or 5 X laboratory normal if known liver metastases |
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Patients must have an ECOG performance status of 0 or 1 |
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Patients must have signed an approved informed consent |
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Patients must be at least 2 weeks beyond prior treatment (chemotherapy, investigational drugs including small molecular inhibitors, endocrine therapy, immunotherapy and/or radiation therapy) or major surgery |
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Patients must be at least 2 weeks beyond high dose systemic corticosteroids (however, low dose corticosteroids 20 mg prednisone or equivalent daily are permitted) |
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Patients must have recovered from all acute toxicities to Grade 1 or less from adverse events due to a previously administered agent |
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Note: Patients with Grade 2 neuropathy or Grade 2 alopecia are an exception to this criterion and may qualify for the study |
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Note: If patients received major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting therapy |
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Patients with recurrent disease may have received multiple prior chemotherapies for treatment of their endometrial cancer |
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Patients may have received prior immunotherapy therapy alone or in combination with chemotherapy. A 4-week washout period is required between prior immunotherapy treatment and first dose of sacituzumab govitecan |
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Patients of childbearing potential must have a negative serum pregnancy test within 7 days prior to the study entry and be practicing an effective form of contraception during the study and until conclusion of 12-week post-treatment evaluation period |
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Patients must be at least 18 years of age |
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Have an active second malignancy. Note: Patients with a history of malignancy that has been completely treated, with no evidence of active cancer for 3 years prior to enrollment, or subjects with surgically-cured tumors with low risk of recurrence are allowed to enroll
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Patients with a significant history of cardiac disease within 6 months, i.e., uncontrolled hypertension, unstable angina, uncontrolled congestive heart failure (NYHA classification III-IV) or clinically significant cardiac arrhythmia (other than stable atrial fibrillation) requiring antiarrhythmia therapy
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Patients with known history of clinically significant active COPD, or other moderate-to-severe chronic respiratory illness present within 6 months
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Patients with any unstable medical issue (including cardiac issues as above, active treatment for symptomatic pulmonary embolism, CVA, renal or hepatic insufficiency, and active infection/sepsis requiring IV antibiotics)
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Have known active CNS metastases and/or carcinomatous meningitis. Patients with previously treated brain metastases may participate provided they have stable CNS disease for at least 4 weeks prior to the first dose of study drug and all neurologic symptoms have returned to baseline, have no evidence of new or enlarging brain metastases, and are taking 20 mg/day of prednisone or its equivalent. All patients with carcinomatous meningitis are excluded regardless of clinical stability
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Patients who have an uncontrolled seizure disorder, or active neurological disease
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Have a known history of HIV-1/2 with uncontrolled viral load and on medications that may interfere with SN-38 metabolism
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Have active HBV or HCV. In subjects with a history of HBV or HCV, subjects with a detectable viral load will be excluded
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Known hemorrhagic diathesis or active bleeding disorder
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Patients with Gilbert's disease
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Presence of bulky disease (defined as any single mass >7 cm in its greatest dimension). Patients with a mass over 7 cm, but otherwise eligible, may be considered for enrollment
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Patients with active grade 2 anorexia, nausea or vomiting, diarrhea, and/or signs of intestinal obstruction
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Prior history of clinically significant bleeding, intestinal obstruction, or GI perforation within 6 months of initiation of study treatment
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Patients with a history of an anaphylactic reaction to irinotecan or Grade 3 GI toxicity to prior irinotecan
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Patients who have previously received topoisomerase I inhibitors
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