Testing Olaparib in Patients With Advanced or Metastatic (Cancer That Has Spread) Bladder Cancer and Other Genitourinary Tumors With DNA-Repair Genetic Changes

Inclusion Criteria:

Patients must have a histologically confirmed diagnosis non-prostate GU cancer

Patients must have Clinical Laboratory Improvement Act (CLIA) testing and fit one of the following groups:

Confirmed presence of a cancer-associated alteration considered pathogenic/likely pathogenic by FM and/or the Genetics Review Panel in one or more of the following genes: BRCA1, BRCA2, ATM, BAP1, MSH2, PALB2, and BRIP1 or in one or more of the DNA-repair genes tested in the FoundationOne FoundationOneCDx (F1CDx) panel including the following genes (Foundation One mutation analysis results performed prior to enrollment on this study may be accepted for eligibility review and in the event that a patient cannot undergo a biopsy and tumor is not available, Foundation Medicine liquid biopsy may be performed): ABL1, ATR, ATRX, BARD1, BRD4, CCND1, CHEK1, CHEK2, DOT1L, FANCC, FANCE, FANCG, FANCL, IKBKE, MEN1, MLH1, MSH2, MSH6, MUTYH, NPM1, PMS2, POLD1, POLE, RAD51, SMARCB1, STK11, TP53

Note: FoundationOneCDx (F1CDx) is a next generation sequencing based in vitro diagnostic device for detection of substitutions, insertion and deletion alterations (indels), and copy number alterations (CNAs) in 324 genes and select gene rearrangements, as well as genomic signatures including microsatellite instability (MSI) and tumor mutational burden (TMB) using DNA isolated from formalin-fixed paraffin embedded (FFPE) tumor tissue specimens
Patients with benign or variants of unknown significance as determined by FoundationOne FoundationOneCDx (F1CDx) panel and Genetics Review Panel review will be included to be followed for survival
Patients must have measurable disease, defined as at least one lesion that can be accurately measured in at least one dimension (longest diameter to be recorded for non-nodal lesions and short axis for nodal lesions) as >= 20 mm (>= 2 cm) by chest x-ray or as >= 10 mm (>= 1 cm) with computed tomography (CT) scan, magnetic resonance imaging (MRI), or calipers by clinical exam
Evidence of disease progression as defined by Response Evaluation Criteria in Solid Tumors (RECIST) (version 1.1) during treatment or after the most recent dose of therapy with at least one platinum-based regimen of chemotherapy and/or an immune-checkpoint inhibitor (atezolizumab, pembrolizumab, nivolumab, avelumab or durvalumab) (2-week washout from chemotherapy and 4-weeks washout from monoclonal antibodies is required)
Age >= 18 years. Because no dosing or adverse event data are currently available on the use of olaparib in patients < 18 years of age, children are excluded from this study, but will be eligible for future pediatric trials
Eastern Cooperative Oncology Group (ECOG) performance status =< 1 (or Karnofsky >= 70%)
Leukocytes >= 3,000/mcL
Absolute neutrophil count >= 1,500/mcL
Platelets >= 100,000/mcL
Total bilirubin =< 1.5 x upper limit of normal (ULN) (for subjects with documented Gilbert's disease total bilirubin =< 3.0 mg/dL)
Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 2.5 x institutional upper limit of normal (for subjects with liver metastasis AST/ALT =< 5 x ULN)
Creatinine clearance >= 50 mL/min/1.73 m^2
Hemoglobin >= 10 g/dL; transfusions are allowed
Prothrombin time (PT)/international normalized ratio (INR) and activated partial thromboplastin time (aPTT) within 1.25 x ULN institutional limits, except where a lupus anti-coagulant has been confirmed or the patient is on direct oral anticoagulant (DOA)
Patients must be able to tolerate oral medications and not have gastrointestinal illnesses that would preclude absorption of olaparib

Pre-clinical data indicate that olaparib adversely affects embryofetal survival and development. Therefore, women of child-bearing potential and their partners should agree to use two (2) highly effective forms of contraception throughout study participation and for at least one (1) month after the last dose of olaparib. Male study participants should avoid fathering a child or donating sperm during the study and for three (3) months after the last dose of olaparib.

Note: Olaparib is a PARP inhibitor with the potential for teratogenic or abortifacient effects. Because there is a potential risk for adverse events in nursing infants secondary to treatment of the mother with olaparib, breastfeeding should be discontinued if the mother is treated with olaparib
Ability to understand and the willingness to sign a written informed consent document or patients with impaired decision making capacity (IDMC) if they are represented by a legally authorized representative (LAR)
Patients must provide archival tumor sample for mutation analysis or be willing to undergo mandatory screening biopsy. In the event that the patient cannot undergo biopsy and tumor is not available, Foundation Medicine liquid biopsy will be performed

Postmenopausal or evidence of non-childbearing status for women of childbearing potential: negative urine or serum pregnancy test within 28 days of study treatment and confirmed prior to treatment on day 1. Postmenopausal is defined as:

Amenorrheic for 1 year or more following cessation of exogenous hormonal treatments
Luteinizing hormone (LH) and follicle stimulating hormone (FSH) levels in the post menopausal range for women under 50
Radiation-induced oophorectomy with last menses > 1 year ago
Chemotherapy-induced menopause with > 1 year interval since last menses
Surgical sterilization (bilateral oophorectomy or hysterectomy)
Patients is willing and able to comply with the protocol for the duration of the study including undergoing treatment and scheduled visits and examinations

Exclusion Criteria:

Patients who have had prior treatment with olaparib or any other PARP inhibitor (PARPi)
Patients with myelodysplastic syndrome/acute myeloid leukemia; or baseline features suggestive of myelodysplastic syndrome or acute myelogenous leukemia on peripheral blood smear or bone marrow biopsy, if clinically indicated
Persistent toxicities (>= Common Terminology Criteria for Adverse Events [CTCAE] grade 2) with the exception of alopecia, caused by previous cancer therapy
Patients who are receiving any other investigational agents. Patients may be on other clinical trials or treatment during screening to determine eligibility
Patients with known brain metastases should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events. A scan to confirm the absence of brain metastases is not required. Patients with spinal cord compression unless considered to have received definitive treatment for this and evidence of clinically stable disease for 28 days
History of allergic reactions attributed to compounds of similar chemical or biologic composition of olaparib

Patients receiving any medications or substances that are inhibitors or inducers of CYP3A are ineligible. A washout period prior to starting olaparib for patients on CYP3A inhibitors is 2 weeks; and the required washout period for CYP3A inducers is 5 weeks for enzalutamide or phenobarbital and 3 weeks for other agents

Because the lists of these agents are constantly changing, it is important to regularly consult a frequently-updated medical reference texts such as the Physicians' Desk Reference. As part of the enrollment/informed consent procedures, the patient will be counseled on the risk of interactions with other agents, and what to do if new medications need to be prescribed or if the patient is considering a new over-the-counter medicine or herbal product
Pregnant women are excluded from this study because olaparib is a PARP inhibitor agent with the potential for teratogenic or abortifacient effects
Any chronic or concurrent acute liver disease
History of stroke, transient ischemic attack (TIA), or myocardial infarction, within 6 months prior to enrollment

Uncontrolled concurrent disease or illness including but not limited to:

Ongoing or active infection
Symptomatic congestive heart failure, unstable angina pectoris, clinically significant cardiac arrhythmia
Unstable or untreated cardiac conditions or ejection fraction of < 50% as determined by echocardiogram (ECHO) or multiple gated acquisition scan (MUGA)
Uncontrolled diabetes mellitus
Psychiatric illness/social situations that would limit compliance with study requirements
Other severe, acute, or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or study drug administration or that may interfere with the interpretation of study results and, in the judgment of the investigator, would make the patient inappropriate for the study
Immunocompromised patients, e.g., patients who are known to be serologically positive for human immunodeficiency virus (HIV)
Patients with known active hepatitis (i.e., hepatitis B or C) due to risk of transmitting the infection through blood or other body fluids
Other malignancy within the last 5 years except: adequately treated non-melanoma skin cancer, curatively treated in situ cancer of the cervix, ductal carcinoma in situ (DCIS), stage 1, grade 1 endometrial carcinoma, or other solid tumors including lymphomas (without bone marrow involvement) curatively treated with no evidence of disease for >= 5 years. Patients with a history of localized triple negative breast cancer or localized resected prostate cancer may be eligible, provided they completed their adjuvant chemotherapy more than three years prior to registration, and that the patient remains free of recurrent or metastatic disease
Resting electrocardiogram (ECG) with corrected QT (QTc) > 470 msec on 2 or more time points within a 24 hour period or family history of long QT syndrome
Patients receiving any systemic chemotherapy or radiotherapy (except for palliative reasons) within 2 weeks prior to study treatment
Major surgery within 2 weeks of starting study treatment and patients must have recovered from any effects of any major surgery
Previous allogenic bone marrow transplant or double umbilical cord blood transplantation (dUCBT)