Evaluating Immune Therapy, Durvalumab (MEDI4736) With Tremelimumab for Metastatic, Non-transitional Cell Carcinoma of the Urinary Tract

Inclusion Criteria

• Age ≥ 18 years at time of informed consent
• Body weight > 30 kg
• Histologically or cytologically confirmed small cell carcinoma, squamous cell carcinoma or adenocarcinoma (confirmed at MSKCC) of the bladder, ureter, urethra, urachus, or renal pelvis. Patients with squamous cell carcinoma and adenocarcinoma are required to have a predominant squamous or adenocarcinoma component as reviewed by the pathologist at MSKCC. However, if any element of small cell or neuroendocrine differentiation is present, the patients will be classified as small cell/neuroendocrine.
• Confirmation of availability of sufficient tissue from a prior surgery for correlative studies is required prior to enrollment. Patients must have representative non-TCC or the urothelial tract FFPE archival tumor specimens (tumor blocks or 30 unstained slides; preference for tumor blocks). These samples may be submitted between the time of consent and the start of treatment. Patients with 1000 per mm^3)
• Platelet count ≥ 100 x 109/L (>100,000 per mm^3)
• Serum bilirubin ≤ 1.5 x institutional upper limit of normal (ULN) (≤ 3 x institutional ULN in patients with Gilbert"s syndrome)
• AST (SGOT)/ALT (SGPT) ≤ 2.5 x institutional ULN unless liver metastases are present, in which case it must be ≤ 5 x ULN
• Calculated creatinine clearance > 30 mL/min by the Cockcroft-Gault formula (Cockcroft and Gault 1976) or by 24-hour urine collection for determination of creatinine clearance:

Males:

Creatinine CL (mL/min)

= Weight (kg) x (140 - Age) . 72 x serum creatinine (mg/dL)

Females:

Creatinine CL (mL/min)

• Weight (kg) x (140 - Age) x 0.85 72 x serum creatinine (mg/dL)
• Evidence of post-menopausal status or negative serum pregnancy test for female pre-menopausal patients. Women will be considered post-menopausal if they have been amenorrheic for 12 months without an alternative medical cause. The following age-specific requirements apply:
• Women 1 year ago, had chemotherapy-induced menopause with last menses >1 year ago, or underwent surgical sterilization (bilateral oophorectomy, bilateral salpingectomy or hysterectomy).
• Female patients of reproductive potential and non-sterilized males who are sexually active with a female partner of childbearing potential must be willing to adhere to the following restrictions:
• Females of reproductive potential who are sexually active with a non-sterilized male partner must agree to use at least 1 highly effective method of contraception (Table 3) from the time of screening until 180 days after the last dose of durvalumab + tremelimumab combination therapy or 90 days after the last dose of durvalumab monotherapy. Cessation of birth control after this point should be discussed with a responsible physician. Periodic abstinence, the rhythm method, and the withdrawal method are not acceptable methods of birth control. It is strongly recommended that non-sterilized male partners of a female patient must use male condom plus spermicide throughout this period. Not engaging in sexual activity for the total duration of the drug treatment and the drug washout period is an acceptable practice.
• Non-sterilized males who are sexually active with a female partner of childbearing potential must use a male condom plus spermicide from screening through 180 days after receipt of the final dose of durvalumab + tremelimumab combination therapy or 90 days after receipt of the final dose of durvalumab monotherapy. Periodic abstinence, the rhythm method, and the withdrawal method are not acceptable methods of birth control. Not engaging in sexual activity is an acceptable practice. Male patients should refrain from sperm donation throughout this period. It is strongly recommended that female partners (of childbearing potential) of male patients to also use a highly effective method of contraception throughout this period.
• Highly effective methods of contraception, defined as one that results in a low failure rate (i.e., le