Locally Advanced Unresectable Breast CarcinomaPhase 1NCT01351909
Cyclophosphamide and Veliparib in Treating Patients With Locally Advanced or Metastatic Breast Cancer
A Phase 1 study testing Cyclophosphamide, Laboratory Biomarker Analysis and Veliparib in people with Locally Advanced Unresectable Breast Carcinoma and Metastatic Breast Carcinoma, run by National Cancer Institute (NCI) at 5 sites in United States.
Trial summary
This phase I trial studies the side effects and best dose of cyclophosphamide and veliparib when given together in treating patients with breast cancer that has spread from where it started to nearby tissue or lymph nodes or to other places in the body. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Locally Advanced Unresectable Breast Carcinoma, Metastatic Breast Carcinoma, Recurrent Breast Carcinoma
- What is being tested?
- Cyclophosphamide, Laboratory Biomarker Analysis and Veliparib
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 35 participants
- Where
- 5 sitesUnited States
- Study dates
- 2 May 2011to 31 Mar 2027
- Phase
- Phase 1
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Phase I: Patients must have histologically confirmed breast cancer (metastatic breast cancer [MBC]) that is human epidermal growth factor receptor 2 (HER2/neu) negative (as determined by local pathology or reference laboratory), and have disease that is metastatic (stage IV [TxNxM1]) or locally advanced and not amenable to potentially curative surgical resection (eg, clinical stage IIIB-C)
- HER2/neu negative disease (performed on primary tumor and/or metastatic lesion using commercially available/approved assay in local institutional or reference laboratory), according to American Society of Clinical Oncology (ASCO)/College of American Pathologists (CAP) guidelines
- National Comprehensive Cancer Network (NCCN) guidelines recommend for metastatic breast cancer "…biopsy documentation of first recurrence, if possible, and determination of hormone receptor status (estrogen receptor [ER] and progesterone receptor [PR]) and HER2 status…."; therefore, histologic and/or cytologic confirmation of metastatic disease is encouraged whenever feasible, but not required; in some circumstances, histologic confirmation may not be feasible (eg, bone metastases not amenable to biopsy and elevated cancer antigen [CA]27-29 tumor marker); for patients who have had histologic confirmation of metastatic disease, it is required that the biopsy confirm that the metastatic tumor is ER and/or PR positive, and HER2/neu negative; for patients in whom biopsy confirmation of metastatic disease is not feasible, it is required that the primary tumor be ER and/or PR-positive and HER2/neu negative
- Measurable disease (Response Evaluation Criteria in Solid Tumors [RECIST] 1.1) or non-measurable disease, with measurement obtained within 4 weeks of registration
- Phase I: Patients must have received at least one prior chemotherapy regimen for metastatic disease; patients with deleterious germ line mutations in breast cancer (BRCA)1 or BRCA2 are not required to have received prior chemotherapy for metastatic disease
- Patients must have had progressive disease after at least one line of endocrine therapy for metastatic disease (includes relapse while receiving endocrine therapy); there should be at least 1 week interval between the last endocrine treatment for an aromatase inhibitor and at least 2 weeks for tamoxifen or fulvestrant
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- Eastern Cooperative Oncology Group (ECOG) performance status 0, 1, or 2 (Karnofsky >= 60%)
- Leukocytes >= 3,000/mcL
- Absolute neutrophil count >= 1,500/mcL
- Platelets >= 100,000/mcL
- Hemoglobin >= 9 g/dl (per manufacturer recommendation)
- Total bilirubin within normal institutional limits (unless isolated indirect hyperbilirubinemia due to Gilbert's disease)
- Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 2.5 × institutional upper limit of normal
- Creatinine within normal institutional limits OR creatinine clearance >= 60 mL/min/1.73 m^2 for patients with creatinine levels above institutional normal
- Patients with a history of brain metastases are eligible if they have been treated with radiation and have stable brain metastases at least 3 months after radiation and must also be off steroids
- Patients must be able to swallow whole capsules and tolerate oral medications
- Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation; being not of childbearing potential is defined as: (1) prior hysterectomy, or (2) no menstrual period for at least 24 months; should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately
- Ability to understand and the willingness to sign a written informed consent document
Who cannot join
- Patients who have radiotherapy within 3 weeks prior to entering the study or those who have not recovered from adverse events due to systemic agents administered more than 3 weeks earlier
- Patients may not be receiving any other investigational agents
- Patients with known brain metastases with active symptoms or requiring anticonvulsive medications, or steroids should be excluded from this clinical trial
- History of allergic reactions attributed to compounds of similar chemical or biologic composition to veliparib (ABT-888) or cyclophosphamide used in the study
- Evidence of complete or partial bowel obstruction or other unable to take oral medications
- Patients with malabsorption syndrome or other condition that would interfere with intestinal absorption
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- Patients unable to swallow whole capsules
- Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements
- Pregnant (positive pregnancy test) or lactating women will be excluded from the study; also, unwillingness to use effective means of contraception in subjects with child-bearing potential will be excluded from the study; women of child-bearing potential must use two forms of contraception (i.e., barrier contraception and one other method of contraception) at least 4 weeks prior to study entry, for the duration of study participation
- Patients with active severe infection; known infection with human immunodeficiency virus (HIV), hepatitis B virus, hepatitis C virus, or severe concurrent illness will be excluded from the study; HIV-positive patients on combination antiretroviral therapy are ineligible
- Patients with a history of seizure disorder requiring antiepileptics who have had a seizure episode within the last 6 months
- Prior treatment with veliparib (ABT-888) or other PARP inhibitors (e.g., olaparib)
Trial locations and contacts
5 sites in 1 country.
5 sites in 1 country
United States5 sites
Laura and Isaac Perlmutter Cancer Center at NYU Langone
New York, New York, 10016
NYP/Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center
New York, New York, 10032
Montefiore Medical Center-Einstein Campus
The Bronx, New York, 10461
Montefiore Medical Center-Weiler Hospital
The Bronx, New York, 10461
Montefiore Medical Center - Moses Campus
The Bronx, New York, 10467
About this study
Official title: Phase I Trial of Low-Dose Cyclophosphamide in Combination With Veliparib (ABT-888) in HER2/Neu-Negative Metastatic Breast Cancer
This phase I trial studies the side effects and best dose of cyclophosphamide and veliparib when given together in treating patients with breast cancer that has spread from where it started to nearby tissue or lymph nodes or to other places in the body. Drugs used in chemotherapy, such as cyclophosphamide, 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. Veliparib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Giving cyclophosphamide together with veliparib may work better in treating breast cancer.
Read the detailed description
PRIMARY OBJECTIVES:
- To determine the recommended phase II dose of veliparib (ABT-888) that can be combined with metronomic dose cyclophosphamide in patients with metastatic breast cancer.
SECONDARY OBJECTIVES:
- To determine whether the macroH2A1.1 and poly (adenosine diphosphate [ADP]-ribose) polymerase 1 (PARP1) expression status in archival paraffin embedded tumor specimens from either the primary tumor or metastatic disease is predictive of clinical benefit with veliparib (ABT-888) plus cyclophosphamide.
OUTLINE: This is a dose-escalation study.
Patients receive veliparib orally (PO) once daily (QD) and cyclophosphamide PO QD on days 1-21. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up periodically.
- Conditions
- Locally Advanced Unresectable Breast Carcinoma, Metastatic Breast Carcinoma, Recurrent Breast Carcinoma, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7, Stage IV Breast Cancer AJCC v6 and v7
- Being tested
- Cyclophosphamide, Laboratory Biomarker Analysis, Veliparib
- Medical subject headings
- Breast Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
CyclophosphamideDrug
Also called (-)-Cyclophosphamide, 2H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide, monohydrate, Asta B 518, B 518
Given PO
Laboratory Biomarker AnalysisOther
Correlative studies
VeliparibDrug
Also called ABT 888, ABT-888, ABT888, PARP-1 inhibitor ABT-888
Given PO
| Study group | Role | What they receive |
|---|---|---|
| Treatment (veliparib, cyclophosphamide) | Experimental | Patients receive veliparib orally PO QD and cyclophosphamide PO QD on days 1-21. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity. Receives: Drug: Cyclophosphamide; Other: Laboratory Biomarker Analysis; Drug: Veliparib |
What is being measured
The primary outcome is the main question the study is designed to answer.
Recommended phase II dose of veliparib and cyclophosphamide
The descriptions and grading scales found in the revised National Cancer Institute Common Terminology Criteria for Adverse Events version 4.0 will be utilized for adverse events reporting.
Measured: 21 days
Secondary outcomes (4)
Clinical response (complete or partial response) according to RECIST version 1.1
Clinical response and benefit rates in each group will be estimated by computing proportions and corresponding 95% confidence intervals. Rates will be compared between groups using the Fisher's exact test.
Measured: Up to 24 weeks
Overall survival
Overall survival will be analyzed using standard survival analytic approaches including the Kaplan-Meier method and the log-rank test.
Measured: Time from treatment initiation to death, assessed up to 6 years
MacroH2A1.1 expression levels
Expression levels of macroH2A1.1 will be compared between patients with and without clinical benefit using the two-sample T-test or Wilcoxon rank sum test, depending on the distribution of the data. Logistic regression models will also be fit to the data to adjust for potential confounders in the analysis.
Measured: Up to 6 years
PARP1 expression status
Expression levels of PARP1 will be compared between patients with and without clinical benefit using the two-sample T-test or Wilcoxon rank sum test, depending on the distribution of the data. Logistic regression models will also be fit to the data to adjust for potential confounders in the analysis.
Measured: Up to 6 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 May 2011 (estimated)
- Study start2 May 2011
- Primary completion25 Nov 2016
- Study completion31 Mar 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Locally Advanced Unresectable Breast CarcinomaStudies of the same condition, open and under way.
- More trials run by National Cancer Institute (NCI)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 35 participants (actual)
Sponsor and investigators
- Lead sponsor
- National Cancer Institute (NCI)
- Sponsor type
- US National Institutes of Health
- Responsible party
- Sponsor
- Investigators
- Joseph A Sparano, Principal investigator, Montefiore Medical Center - Moses Campus
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01351909
- Sponsor's protocol ID
- NCI-2011-02590
- Other IDs
- NCI-2011-02590, P8853_A18PAMDREVW01, 11-02-068, 11-01501, CDR0000700033, 8853, 8853, N01CM62204
- Status last verified
- Sep 2026
- First submitted
- 10 May 2011
- Last updated
- 10 Sep 2026
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 10 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase I Trial of Low-Dose Cyclophosphamide in Combination With Veliparib (ABT-888) in HER2/Neu-Negative Metastatic Breast Cancer
- ClinicalTrials.gov ID
- NCT01351909
- Acronym / sponsor ID
- NCI-2011-02590
- Conditions
- Locally Advanced Unresectable Breast Carcinoma, Metastatic Breast Carcinoma, Recurrent Breast Carcinoma, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7, Stage IV Breast Cancer AJCC v6 and v7
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 35 participants (actual)
- Lead sponsor
- National Cancer Institute (NCI)US National Institutes of Health
- Study start
- 2 May 2011 (actual)
- Primary completion
- 25 Nov 2016 (actual)
- Study completion
- 31 Mar 2027 (estimated)
- First posted
- 11 May 2011 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This phase I trial studies the side effects and best dose of cyclophosphamide and veliparib when given together in treating patients with breast cancer that has spread from where it started to nearby tissue or lymph nodes or to other places in the body. Drugs used in chemotherapy, such as cyclophosphamide, 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. Veliparib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Giving cyclophosphamide together with veliparib may work better in treating breast cancer.
Detailed description
PRIMARY OBJECTIVES:
- To determine the recommended phase II dose of veliparib (ABT-888) that can be combined with metronomic dose cyclophosphamide in patients with metastatic breast cancer.
SECONDARY OBJECTIVES:
- To determine whether the macroH2A1.1 and poly (adenosine diphosphate [ADP]-ribose) polymerase 1 (PARP1) expression status in archival paraffin embedded tumor specimens from either the primary tumor or metastatic disease is predictive of clinical benefit with veliparib (ABT-888) plus cyclophosphamide.
OUTLINE: This is a dose-escalation study.
Patients receive veliparib orally (PO) once daily (QD) and cyclophosphamide PO QD on days 1-21. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up periodically.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Treatment (veliparib, cyclophosphamide) | Experimental | Drug: Cyclophosphamide, Other: Laboratory Biomarker Analysis, Drug: VeliparibPatients receive veliparib orally PO QD and cyclophosphamide PO QD on days 1-21. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (18 listed)
- Phase I: Patients must have histologically confirmed breast cancer (metastatic breast cancer [MBC]) that is human epidermal growth factor receptor 2 (HER2/neu) negative (as determined by local pathology or reference laboratory), and have disease that is metastatic (stage IV [TxNxM1]) or locally advanced and not amenable to potentially curative surgical resection (eg, clinical stage IIIB-C)
- HER2/neu negative disease (performed on primary tumor and/or metastatic lesion using commercially available/approved assay in local institutional or reference laboratory), according to American Society of Clinical Oncology (ASCO)/College of American Pathologists (CAP) guidelines
- National Comprehensive Cancer Network (NCCN) guidelines recommend for metastatic breast cancer "…biopsy documentation of first recurrence, if possible, and determination of hormone receptor status (estrogen receptor [ER] and progesterone receptor [PR]) and HER2 status…."; therefore, histologic and/or cytologic confirmation of metastatic disease is encouraged whenever feasible, but not required; in some circumstances, histologic confirmation may not be feasible (eg, bone metastases not amenable to biopsy and elevated cancer antigen [CA]27-29 tumor marker); for patients who have had histologic confirmation of metastatic disease, it is required that the biopsy confirm that the metastatic tumor is ER and/or PR positive, and HER2/neu negative; for patients in whom biopsy confirmation of metastatic disease is not feasible, it is required that the primary tumor be ER and/or PR-positive and HER2/neu negative
- Measurable disease (Response Evaluation Criteria in Solid Tumors [RECIST] 1.1) or non-measurable disease, with measurement obtained within 4 weeks of registration
- Phase I: Patients must have received at least one prior chemotherapy regimen for metastatic disease; patients with deleterious germ line mutations in breast cancer (BRCA)1 or BRCA2 are not required to have received prior chemotherapy for metastatic disease
Key exclusion criteria (12 listed)
- Patients who have radiotherapy within 3 weeks prior to entering the study or those who have not recovered from adverse events due to systemic agents administered more than 3 weeks earlier
- Patients may not be receiving any other investigational agents
- Patients with known brain metastases with active symptoms or requiring anticonvulsive medications, or steroids should be excluded from this clinical trial
- History of allergic reactions attributed to compounds of similar chemical or biologic composition to veliparib (ABT-888) or cyclophosphamide used in the study
- Evidence of complete or partial bowel obstruction or other unable to take oral medications
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| CyclophosphamideAlso: (-)-Cyclophosphamide, 2H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide, monohydrate, Asta B 518, B 518Given PO | Drug | Treatment (veliparib, cyclophosphamide) |
| Laboratory Biomarker AnalysisCorrelative studies | Other | Treatment (veliparib, cyclophosphamide) |
| VeliparibAlso: ABT 888, ABT-888, ABT888, PARP-1 inhibitor ABT-888Given PO | Drug | Treatment (veliparib, cyclophosphamide) |
Primary outcome
Recommended phase II dose of veliparib and cyclophosphamide
Time frame: 21 days
The descriptions and grading scales found in the revised National Cancer Institute Common Terminology Criteria for Adverse Events version 4.0 will be utilized for adverse events reporting.
4 secondary outcomes
Clinical response (complete or partial response) according to RECIST version 1.1
Time frame: Up to 24 weeks
Overall survival
Time frame: Time from treatment initiation to death, assessed up to 6 years
MacroH2A1.1 expression levels
Time frame: Up to 6 years
PARP1 expression status
Time frame: Up to 6 years
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 Sep 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Joseph A Sparano principal investigator
Montefiore Medical Center - Moses Campus
5 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing Cyclophosphamide, Laboratory Biomarker Analysis and Veliparib in people with Locally Advanced Unresectable Breast Carcinoma and Metastatic Breast Carcinoma, run by National Cancer Institute (NCI) at 5 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 18 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 10 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 5 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Recommended phase II dose of veliparib and cyclophosphamide (time frame: 21 days). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Sep 2026.