A Phase 1 interventional study of Carboplatin and Laboratory Biomarker Analysis in Breast Carcinoma, Carcinoma of Unknown Primary and Endometrial Carcinoma, sponsored by National Cancer Institute (NCI). Active, not recruiting at 17 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-04.
Sponsored by National Cancer Institute (NCI) · Phase 1, Interventional, and Treatment
This phase I trial studies the side effects and the best dose of veliparib when given together with paclitaxel and carboplatin in treating patients with solid tumors that are metastatic or cannot be removed by surgery and liver or kidney dysfunction. Veliparib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as paclitaxel and carboplatin, work in different ways to stop the growth of tumor cells either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving veliparib together with paclitaxel and carboplatin may kill more tumor cells.
PRIMARY OBJECTIVES:
I. To determine the pharmacokinetics and pharmacodynamics of ABT-888 (veliparib) in patients with varying degrees of renal or hepatic dysfunction.
II. To determine the maximum tolerated dose (MTD) of ABT-888 in combination with carboplatin and paclitaxel for patients with varying degrees of liver or kidney dysfunction.
III. To provide dosing recommendations for ABT-888 in combination with carboplatin and paclitaxel based on degree of hepatic and renal impairment.
SECONDARY OBJECTIVES:
I. To define the dose-limiting toxicity (DLT) and other toxicities associated with the use of this combination in patients with varying degrees of renal or hepatic dysfunction.
II. To evaluate the pharmacokinetic parameters of ABT-888, carboplatin, and paclitaxel when administered as a combination in patients with varying degrees of renal or hepatic dysfunction.
III. To evaluate the pharmacodynamic measurement of poly-ADP-ribosylated (PAR) and platinum adducts in tumor cells associated with the use of this combination in patients with varying degrees of renal or hepatic dysfunction.
OUTLINE: This is a dose-escalation study of veliparib.
Patients receive veliparib* orally (PO) twice daily (BID) on days 1-7 and paclitaxel intravenously (IV) over 3 hours and carboplatin IV over 30 minutes on day 3. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity.
NOTE: * All patients receive a single dose of veliparib PO on day -6 before course 1 (except patients with very severe renal dysfunction who receive veliparib on day -5 or -6 to coincide with a dialysis day).
After completion of study treatment, patients are followed up for 4 weeks.
14,825 studies on the registry are indexed under Breast Neoplasms; 3,319 are open to participants now.
This study's enrollment of 94 is above the median of 72 across 10,896 interventional studies indexed under Breast Neoplasms.
Browse Breast Neoplasms studies →National Cancer Institute (NCI) is the lead sponsor of 3,556 studies on the registry; 336 are open to participants now.
Of its 411 completed or terminated interventional studies of FDA-regulated products, 373 (91%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.
Studies often ask for 60 or 70 and above. Your doctor gives the score.
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.
It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).
Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Histologically or cytologically confirmed
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECOG performance status
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Karnofsky performance status (KPS)
A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.
Studies often ask for 60 or 70 and above. Your doctor gives the score.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Life expectancy
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Absolute neutrophil count (ANC)
The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.
It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Platelets
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hemoglobin (Hb)
The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Bilirubin
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ALT and AST (liver enzymes)
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Brain metastases
Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).
Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Patients receive veliparib\* PO BID on days 1-7 and paclitaxel IV over 3 hours and carboplatin IV over 30 minutes on day 3. Courses repeat every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity. NOTE: \* All patients receive a single dose of veliparib PO on day -6 before course 1 (except patients with very severe renal dysfunction who receive veliparib on day -5 or -6 to coincide with a dialysis day).
Drug: Carboplatin · Other: Laboratory Biomarker Analysis · Drug: Paclitaxel · Other: Pharmacological Study · Drug: Veliparib
Given IV
Also known as: Blastocarb, Carboplat, Carboplatin Hexal, Carboplatino, Carboplatinum, Carbosin, Carbosol, Carbotec, CBDCA, Displata, Ercar, JM-8, JM8, Nealorin, Novoplatinum, Paraplatin, Paraplatin AQ, Paraplatine, Platinwas, Ribocarbo
Correlative studies
Given IV
Also known as: Anzatax, Asotax, Bristaxol, Praxel, Taxol, Taxol Konzentrat
Correlative studies
Given PO
Also known as: ABT 888, ABT-888, ABT888, PARP-1 inhibitor ABT-888
PK parameters of veliparib
Standard quantitative and graphical statistical summaries of the derived PK parameters (e.g. area under curve and clearance) will be produced for each organ function cohort. The effect of dysfunction on pharmacokinetics will be explored by comparing each pharmacokinetic parameter across all cohorts using one-way analysis (analysis of variance) or Kruskal-Wallis test. The level of each protein will be compared between responders and non-responders using the Wilcoxon signed rank test.
Time frame: Day -6 and 3 of course 1 after veliparib dosing
MTD of veliparib in combination with carboplatin and paclitaxel, determined according to incidence of DLT as graded using the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version (v) 4.0
Time frame: 21 days
Incidence of toxicities as assessed by NCI CTCAE v4.0
The maximum grade of toxicity for each category of interest will be recorded for each patient and the summary results will be tabulated by category, grade and dose level. Severe and life-threatening toxicities and adverse event-related deaths (\>= grade 3) will be described on a patient-by-patient basis and will include any relevant baseline data.
Time frame: Up to 4 weeks after completion of study treatment
Response rate as assessed by Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1
Responses will be tabulated by disease diagnosis and by dose level. 95% confidence limits will also be reported on the response rates.
Time frame: Up to 4 weeks after completion of study treatment
Incidence of stable disease as assessed by RECIST version 1.1
Incidence of stable disease will be tabulated by disease diagnosis and by dose level.
Time frame: Up to 4 weeks after completion of study treatment
Time to progression
Displayed for all patients and for patients who have responded; no formal statistical analysis is planned.
Time frame: Up to 4 weeks after completion of study treatment
Change in PAR levels
Descriptive statistics (mean, standard deviation, median, range) for measurements of PAR levels will provided with 95% confidence intervals (CIs). When sample size permits, a formal statistical test using the Wilcoxon signed rank test will be used to compare the post treatment PAR levels to the baseline levels. When feasible, the level will be compared between responders and non-responders using the Wilcoxon signed rank test.
Time frame: Baseline to up to 4 weeks
Change in gamma-H2AX levels
Descriptive statistics (mean, standard deviation, median, range) for measurements of gamma-H2AX levels will provided with 95% CIs. When sample size permits, a formal statistical test using the Wilcoxon signed rank test will be used to compare the post treatment PAR levels to the baseline levels. When feasible, the level will be compared between responders and non-responders using the Wilcoxon signed rank test.
Time frame: Baseline to up to 4 weeks
This study is active, not recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Veliparib
National Cancer Institute (NCI) →