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About
This phase I trial is studying the side effects and the best dose of veliparib when given together with capecitabine and oxaliplatin in treating patients with advanced solid tumors. Veliparib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as capecitabine and oxaliplatin, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving veliparib together with capecitabine and oxaliplatin may kill more tumor cells.
Full description
PRIMARY OBJECTIVES:
I. To determine the dose limiting toxicities (DLTs) and the maximum tolerated dose (MTD) of ABT-888 (veliparib) in combination with oxaliplatin and capecitabine in advanced solid tumors.
SECONDARY OBJECTIVES:
I. To evaluate the pharmacokinetics of ABT-888, oxaliplatin, and capecitabine when administered concomitantly.
II. To evaluate the safety and tolerability of the ABT-888 in combination with capecitabine and oxaliplatin.
III. To assess for evidence of anti-tumor activity with this combination, per tumor measurements using RECIST criteria, in these patients.
TERTIARY OBJECTIVES:
I. To assess the inhibition of poly(ADP-ribose) polymerase (PARP) in peripheral blood mononuclear cells secondary to treatment with ABT-888.
II. To determine the pharmacokinetics of ABT-888 in combination with oxaliplatin and capecitabine and the relation to treatment side effects.
OUTLINE: This is a dose-escalation study of veliparib.
Patients receive veliparib orally (PO) twice daily and capecitabine PO twice daily on 1-7 and 15-21, and oxaliplatin intravenously (IV) over 2 hours on days 1 and 15. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
Patients undergo blood and urine sample collection at baseline and periodically during study for pharmacokinetic and poly (ADP-ribose) polymerase (PARP) inhibition studies.
After completion of study therapy, patients are followed up for 30 days.
Enrollment
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Inclusion and exclusion criteria
Inclusion Criteria:
Histologically or cytologically confirmed solid tumors that fulfill ≥ 1 of the following criteria:
BRCA1/2 mutation and a BRCA-related malignancy
First- or second-line metastatic colorectal cancer
Any-line metastatic mucinous ovarian cancer
Any line of other metastatic gastrointestinal malignancies in which oxaliplatin has shown some activity (i.e., gastric or pancreatic adenocarcinoma)
Patients with uncontrolled CNS metastasis are not eligible; patients with CNS metastases who have had them treated and are stable for > 3 months will be eligible; patients must be off steroid treatment prior to study enrollment
Measurable disease
ECOG performance status (PS) 0-2 (Karnofsky 60-100%)
Life expectancy > 3 months
ANC ≥ 1,500/mm³
Platelet count ≥ 100,000/mm³
Total bilirubin ≤ 1.5 times upper limit of normal (ULN)
AST and ALT ≤ 2.5 times ULN (≤ 5 times ULN for patients with liver metastases)
Creatinine ≤ 1.5 times ULN OR creatinine clearance ≥ 60 mL/min
Fertile patients must use adequate contraception (i.e., hormonal, barrier method of birth control, or abstinence)
Not pregnant or nursing
Negative pregnancy test
No history of allergic reactions attributed to compounds of similar chemical or biologic composition to veliparib or other agents used in study
No uncontrolled intercurrent illness including, but not limited to, any of the following:
No history of positive serology for hepatitis A, B, or C, liver disease, or other forms of hepatitis or cirrhosis
Patients who have active seizures or history of seizures are ineligible
No condition that impairs the ability to swallow and retain veliparib capsules, including any of the following:
No malabsorption syndrome, disease significantly affecting gastrointestinal function, resection of the stomach or small bowel, ulcerative colitis, inflammatory bowel disease, or a partial or complete small bowel obstruction
No peripheral neuropathy ≥ grade 2
No prolonged QTC > 450 msec (male) or QTC > 470 (female)
No concurrent combination antiretroviral therapy for HIV-positive patients
Recovered from adverse events of prior therapy or prior surgical procedures
At least 4 weeks since prior chemotherapy (6 weeks for nitrosoureas or mitomycin C)
At least 4 weeks since prior radiotherapy with no > 35% of marrow irradiation
Prior fluoropyrimidine allowed
Prior veliparib allowed provided it was part of a single- or limited-dosing study, such as a phase 0 study
Prior capecitabine allowed provided patient tolerated 3500 mg/m² for 7 days out of 14 days
No other prior investigational agents
No prior oxaliplatin
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16 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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