Trial of Olaparib in Patients With Metastatic Urothelial Cancer Harboring DNA Damage Response Gene Alterations

Inclusion Criteria

• Written informed consent and HIPAA authorization for release of personal health information prior to registration. NOTE: HIPAA authorization may be included in the informed consent or obtained separately.
• Age ≥ 18 years at the time of consent.
• ECOG Performance Status of ≤ 1 within 14 days prior to registration. Cisplatin-ineligible chemotherapy-naïve subjects (see inclusion criteria #8) may have an ECOG Performance Status of ≤ 2.
• Histological or cytological evidence/confirmation of urothelial cancer.
• Metastatic and/or unresectable (cT4b) urothelial cancer.
• Metastatic disease evaluable on imaging studies. Subjects may have measurable disease according to RECIST 1.1 or bone-only disease within 30 days prior to registration.
• NOTE: Bone-only subjects are eligible if their disease can be documented/ evaluated by bone scans, CT or MRI. Their disease will be assessed using MD Anderson criteria.34
• NOTE: Previously irradiated lesions are eligible as a target lesion only if there is documented progression of the lesion after irradiation.
• Somatic alteration considered pathogenic/likely pathogenic in one of the following DDR genes as determined by genomic sequencing performed in a Clinical Laboratory Improvement Amendments (CLIA) laboratory. Somatic alterations will include nonsense, frameshift, splice-site or missense mutations or homozygous deletions. Subjects with alterations in DDR genes not included in the list below will be considered on a case by case basis after discussion with the sponsor-investigator(s). Subjects with germline alterations in DDR genes will be considered on a case by case basis and will be reviewed by the sponsor-investigator(s). At least 6 subjects will have BRCA or ATM alterations.
• Nucleotide Excision Repair: ERCC2, ERCC3,ERCC4, ERCC5, ERCC6
• Homologous Recombination: BRCA1, RAD52, BRCA2, RAD54L, RAD50, NBN RAD51, MRE11A, RAD51B, RAD51D, RAD51C, CTIP
• DNA Sensor: ATM, ATR, MDC1, ATRX, CHEK1, CHEK2
• Fanconi Anemia Pathway: PALB2, FANCE, BRIP1, FANCF, FANCA, FANCG FANCB, BLM, FANCC, FANCD2
• Base Excision Repair: XRCC2, XRCC3, XRCC4, XRCC5, XRCC6
• Other: MUTYH, RECQL4, POLQ, POLE, WRN
• A subject with prior brain metastasis may be considered if they have completed their treatment for brain metastasis at least 4 weeks prior to study registration, have been off of corticosteroids for ≥ 2 weeks, and are asymptomatic
• Subjects must have progressed despite at least 1 prior line of treatment for metastatic and/or unresectable urothelial cancer. However, cisplatin-ineligible (defined by a calculated creatinine clearance of >30 but 470 msec on 2 or more time points within a 24 hour period or family history of long QT syndrome.
• Concomitant use of known strong CYP3A inhibitors (eg. itraconazole, telithromycin, clarithromycin, protease inhibitors boosted with ritonavir or cobicistat, indinavir, saquinavir, nelfinavir, boceprevir, telaprevir) or moderate CYP3A inhibitors (eg. ciprofloxacin, erythromycin, diltiazem, fluconazole, verapamil). The required washout period prior to starting olaparib is 2 weeks.
• Concomitant use of known strong (eg. phenobarbital, enzalutamide, phenytoin, rifampicin, rifabutin, rifapentine, carbamazepine, nevirapine and St John's Wort) or moderate CYP3A inducers (eg. bosentan, efavirenz, modafinil). The required washout period prior to starting olaparib is 5 weeks for enzalutamide or phenobarbital and 3 weeks for other agents.
• Subjects with myelodysplastic syndrome/acute myeloid leukemia or with features suggestive of MDS/AML.
• Major surgery within 2 weeks of starting study treatment and subjects must have recovered from any effects of any major surgery.
• Subjects considered a poor medical risk due to a serious, uncontrolled medical disorder, non-malignant systemic disease or active, uncontrolled infection. Examples include, but are not limited to, uncontrolled ventricular arrhythmia, recent (within 3 months) myocardial infarction, uncontrolled