Ovarian Cancer, Resistant BRCA Wild-Type Ovarian Cancer
Conditions
Keywords
BRCA Wild-Type, Resistant BRCA, Poly (ADP-ribose) polymerase (PARP) Inhibitor Therapy
Brief summary
The purpose of this protocol is to investigate the efficacy of the combination of CB-839 with Niraparib in platinum resistant BRCA wild-type ovarian cancer patients. The primary and secondary objectives are to determine the maximum tolerated dose of CB-839 in combination with Niraparib and to determine the response rate and percentage of participants who remain progression free at 6 months.
Detailed description
Based on the scientific rationale, pre-clinical data, and clinical data available to date, and the need for further treatment options in patients that are platinum resistance that are specifically BRCA wild-type. Only patients carrying wild type BRCA genes will be enrolled in the study. The proposed research tests a new therapeutic strategy for ovarian cancer with a very novel mechanistic target: metabolic dependency of ovarian cancer. Pre-clinical results indicate that both serous and clear cells ovarian cancers have upregulation of Hypoxia Inducible Factors (HIF) HIF1a and Hypoxia Inducible Factors (HIF) HIF2a regulated genes. In addition, cell line models of these tumors display sensitivity to CB-839 in vitro. Ovarian cancers resistant to standard platinum chemotherapy may thus respond to treatment with this glutaminase inhibitor. The majority of patients do not present mutations in BRCA or any other genes of the Fanconi pathway, but their tumors may respond to CB-839, which in turn may lead to genomic instabilities due to nucleotide deprivation; therefore, CB-839 could sensitize the tumors to treatment with Niraparib.
Interventions
DRUGCohort 1: Dose Escalation
The first 3 participants will be enrolled on a fixed dose of Niraparib and CB-839, 600mg. Participants will be evaluated for DLT's, if there are none, they will be enrolled in the next cohort.
DRUGCohort 2: Dose Escalation
If no dose limiting toxicities, 3 additional participants will be enrolled in this cohort. Participants will receive a fixed dose of Niraparib and CB-839, 800mg.
Sponsors
University of Alabama at Birmingham
Study design
Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Eastern Cooperative Oncology Group (ECOG) Performance Status of 0-2 * Estimated life expectancy of at least 3 months * Measurable disease; at least one tumor lesion/lymph node that meets the RECIST 1.1 criteria for measurability * Negative serum or urine pregnancy test within 3 days prior to the first dose * Serum creatinine \<= 2.0 x upper limit of normal (ULN) * Adequate hematological function * Alanine aminotransferase (ALT) & aspartate aminotransferase (AST) \<3.0 x ULN * Total bilirubin \<=1.5 x ULN
Exclusion criteria
* Prior treatment with CB-839 or a PARP inhibitor * Receipt of any anticancer therapy within the following windows: * Small molecule tyrosine kinase inhibitor therapy (including investigational) within 2 weeks or 5 half-lives, whichever is longer * Any type of anti-cancer antibody within 4 weeks * Radiation therapy for bone metastasis within 2 weeks, any other external radiation therapy within 4 weeks before randomization * Subjects with clinically relevant ongoing complications from prior radiation therapy * Other investigational therapy within 2 weeks or 5 half-lives, whichever is longer * Any other current or previous malignancy within he past three years except: * Adequately treated basal cell or squamous cell skin cancer * Carcinoma in situ of the cervix * Prostate cancer with stable prostate specific antigen (PSA) levels for \>3 years * Other neoplasm that, in the opinion of the Principal Investigator, will not interfere with the study-specific endpoints
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Access toxicity as evidenced by the number and percent of treatment adverse events. | Baseline through Week 1 | Any CTCAE v4.0 grade 3 except with some identified exceptions: Grade 3-4 nausea, vomiting and diarrhea, Grade 3 transaminitis present for \<= 7 days, Grade 3 laboratory abnormalities (correctable & asymptomatic), Grade 3 ALT or AST elevation, Grade 3 thrombocytopenia or neutropenia, and Grade 4 anemia. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Determine the response rate by the percentage of patients that remain progression free as measured by the Response Evaluation Criteria in Solid Tumors (RECIST). | Baseline through 6 months | Response will be evaluated by the revised RECIST. Changes in the largest diameter (unidimensional measurement) of the tumor lesions and the shortest diameter in the case of malignant lymph nodes. Assessment of association among biomarkers will be carried out by dose level and cycle. |
| Determine progression rate by the percentage of patients that have disease progression as measured by the Response Evaluation Criteria in Solid Tumors (RECIST). | Baseline through 6 months | Progression will be evaluated by the revised RECIST. Changes in the largest diameter (unidimensional measurement) of the tumor lesions and the shortest diameter in the case of malignant lymph nodes. Assessment of association among biomarkers will be carried out by dose level and cycle. |
| Determine the progression rate by the percentage of patients that have disease progression as measured by the Response Evaluation Criteria in Solid Tumors (RECIST). | Baseline through 12 months | Progression will be evaluated by the revised RECIST. Changes in the largest diameter (unidimensional measurement) of the tumor lesions and the shortest diameter in the case of malignant lymph nodes. Assessment of association among biomarkers will be carried out by dose level and cycle. |
Countries
United States
Outcome results
None listed