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Carboplatin and Combination Chemotherapy With or Without Veliparib in Treating Patients With Stage IIB-IIIC Breast Cancer

An Adaptive, Randomized Phase II Trial to Determine Pathologic Complete Response With the Addition of Carboplatin With and Without Veliparib to Standard Chemotherapy in the Neoadjuvant Treatment of Triple-Negative Breast Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01818063
Enrollment
9
Registered
2013-03-26
Start date
2013-04-25
Completion date
2018-12-10
Last updated
2025-04-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Estrogen Receptor-negative Breast Cancer, HER2-negative Breast Cancer, Progesterone Receptor-negative Breast Cancer, Stage II Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Triple-negative Breast Cancer

Brief summary

This randomized phase II trial studies how well carboplatin and combination chemotherapy with or without veliparib works in treating patients with stage IIB-IIIC breast cancer. Drugs used in chemotherapy, such as paclitaxel, carboplatin, doxorubicin hydrochloride, and cyclophosphamide, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Veliparib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. It is not yet known whether giving carboplatin and combination chemotherapy are more effective with or without veliparib is more effective in treating breast cancer.

Detailed description

PRIMARY OBJECTIVE: 1\) To compare the pathologic complete response (path CR) in patients with stage IIB or stage III triple negative breast cancer treated with neoadjuvant paclitaxel and carboplatin to the path CR of patients treated with paclitaxel, carboplatin, and veliparib. SECONDARY OBJECTIVES: 1. Relapse free survival (follow-up period of 36 months). 2. Overall clinical response to neoadjuvant therapy. OUTLINE: Patients are randomized to 1 of 2 treatment arms. ARM I: Patients receive paclitaxel intravenously (IV) and carboplatin IV on day 1 (course 1 only) or day 2 (courses 2-12). Treatment repeats every 7 days for 12 courses in the absence of disease progression or unacceptable toxicity. Beginning 21 days after the last course, patients receive doxorubicin hydrochloride IV and cyclophosphamide IV on day 1. Treatment repeats every 21 days for 4 courses in the absence of disease progression or unacceptable toxicity. ARM II: Patients receive veliparib orally (PO) twice daily (BID) on days 1-5. Patients also receive paclitaxel IV and carboplatin IV on day 3 (course 1 only) or day 4 (courses 2-12). Treatment repeats every 7 days for 12 courses in the absence of disease progression or unacceptable toxicity. Beginning 21 days after the last course, patients receive doxorubicin hydrochloride IV and cyclophosphamide IV on day 1. Treatment repeats every 21 days for 4 courses in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up every 3 months for 36 months.

Interventions

DRUGPaclitaxel

Given IV

DRUGCarboplatin

Given IV

DRUGDoxorubicin

Given IV

DRUGCyclophosphamide

Given IV

DRUGVeliparib

Given PO

Sponsors

Susan G. Komen Breast Cancer Foundation
CollaboratorOTHER
Sidney Kimmel Cancer Center at Thomas Jefferson University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Written informed consent must be obtained prior to any study-related procedures. 2. Histologically confirmed adenocarcinoma of the breast with the following markers: Estrogen receptor negative (\<1%), progesterone receptor negative (\<1%), and Her-2/neu negative (Her-2/neu 0-1+ IHC or FISH ratio \<1.8 or average HER2 gene copy number of \<four signal/nucleus for test systems without internal control probe). 3. Female ≥ 18 years old. 4. Clinical stage IIA (T2N0), IIB (T2N1, T3N0) or stage IIIA (T1N2, T2N2, T3N1, T3N2), IIIB, or IIIC breast cancer with no prior treatment. 5. Complete radiology or tumor assessment within 28 days prior to enrollment 1. Breast MRI 2. Unilateral Breast Ultrasound 3. Distant metastatic work-up completed with PET/CT. 4. If enlarged axillary lymph nodes are found during staging scans, FNA must be performed to determine whether the node is involved with cancer. 5. If axillary lymph nodes are clinically negative during initial work-up, sentinel node biopsy will be performed prior to initiation of chemotherapy. 6. ECOG Performance Status of 0 or 1 7. Adequate organ and hematologic function as evidenced by the following laboratory studies within 4 weeks of study enrollment: 1. Cardiac Ejection Fraction \>/= lower limit of normal as determined by 2-D echo or MUGA scan according to institutional standards. 2. Hematologic function, as follows: Absolute neutrophil count ≥ 1.5 x 109/L, Platelet count ≥ 100 x 109/L and ≤ 850 x 109/L, Hemoglobin ≥ 9 g/dL, PTT and INR \< 1.5 x ULN. 3. Renal function, as follows: Serum creatinine \</= 1.4 mg/dL). 4. Hepatic function, as follows:Aspartate aminotransferase (AST) ≤ 2.5 x ULN, Alanine aminotransferase (ALT) ≤ 2.5 x ULN , Total bilirubin ≤ 2 x ULN (except for patients with UGT1A1 promoter polymorphism, i.e. Gilbert syndrome, confirmed by genotyping or Invader UGT1A1 molecular assay prior to study enrollment. Patients enrolled with Gilbert syndrome must have total bilirubin \< 3 ULN). 8. Patient must be willing and able to undergo MRI as outlined in protocol.

Exclusion criteria

1. Known hypersensitivity to doxorubicin, cyclophosphamide, paclitaxel, cremophor or medications containing cremophor(miconazole, docetaxel, sandimmune, nelfinavir mesylate, propofol, diazepam injection, vitamin K injection, ixabepilone, aci-jel) or carboplatin. 2. Known HIV or active Hepatitis B or C infection. 3. Prior treatment for the currently diagnosed breast cancer. 4. Prior treatment with doxorubicin up to 400 mg/m2. 5. Pre-existing Grade 3 or 4 sensory neuropathy. 6. History of bleeding diathesis or extensive bleeding requiring blood transfusion within 14 days of enrollment. 7. Major surgical procedure within 4 weeks (28 days) prior to enrollment (port placement is not considered a major surgical procedure). 8. Clinically significant cardiac disease within 12 months of study enrollment, including myocardial infarction, unstable angina, congestive heart failure, or ongoing arrhythmias requiring medication or pacemaker. 9. Non-healing wound, ulcer or fracture. 10. Ongoing or active infection. 11. Pregnant (i.e., positive beta-human chorionic gonadotropin test) or lactating 12. Not willing to use a highly effective method of birth control (i.e. those which result in low failure rates, less than 1% per year), defined as intrauterine devices, barrier methods (condoms, contraceptive sponges, diaphragms, vaginal rings used with spermicidal jellies or creams), oral contraceptive pills, or sexual abstinence. Contraception must be used during the study. 13. T0 tumors 14. Active dental infection

Design outcomes

Primary

MeasureTime frameDescription
Count of Participants That Achieve Pathologic Complete Response (PCR)36 months following surgeryPCR is defined as the absence of any residual invasive cancer on hematoxylin and eosin (H&E) evaluation of the resected breast specimen and all sampled ipsilateral lymph nodes.

Secondary

MeasureTime frameDescription
Overall Clinical ResponseUp to 3 yearsThe count and percentage of subjects with each category of overall clinical response will be summarized by presence of baseline measureable disease (i.e., complete response \[CR\], partial response \[PR\], stable disease \[SD\], progressive disease \[PD\], unable to evaluate \[UE\], neurogenerative disease \[ND\]). Evaluated per Response Evaluation Criteria In Solid Tumors (RECIST v1.0) as assessed b MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR. Beta will be used as priors for combination regimens in calculating the posterior distribution of the pathologic complete response \[pCR\] for each respective treatment group. Among subjects with measurable disease, a 95% credible region will be calculated for the odds ratio for each treatment combination relative to each other.
Relapse Free SurvivalUp to 3 yearsAnalyzed using Kaplan-Meier methods, stratified by study group, and the log rank test will be completed.

Countries

United States

Participant flow

Participants by arm

ArmCount
Arm 1 (Paclitaxel, Carboplatin)
Patients receive paclitaxel IV and carboplatin IV on day 1 (course 1 only) or day 2 (courses 2-12). Treatment repeats every 7 days for 12 courses in the absence of disease progression or unacceptable toxicity. Beginning 21 days after the last course, patients receive doxorubicin hydrochloride IV and cyclophosphamide IV on day 1. Treatment repeats every 21 days for 4 courses in the absence of disease progression or unacceptable toxicity. Paclitaxel: Given IV Carboplatin: Given IV Doxorubicin: Given IV Cyclophosphamide: Given IV
5
Arm 2 (Veliparib, Paclitaxel, Carboplatin)
Patients receive veliparib PO BID on days 1-5. Patients also receive paclitaxel IV and carboplatin IV on day 3 (course 1 only) or day 4 (courses 2-12). Treatment repeats every 7 days for 12 courses in the absence of disease progression or unacceptable toxicity. Beginning 21 days after the last course, patients receive doxorubicin hydrochloride IV and cyclophosphamide IV on day 1. Treatment repeats every 21 days for 4 courses in the absence of disease progression or unacceptable toxicity. Paclitaxel: Given IV Carboplatin: Given IV Doxorubicin: Given IV Cyclophosphamide: Given IV Veliparib: Given PO
4
Total9

Baseline characteristics

CharacteristicTotalArm 1 (Paclitaxel, Carboplatin)Arm 2 (Veliparib, Paclitaxel, Carboplatin)
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
2 Participants2 Participants0 Participants
Age, Categorical
Between 18 and 65 years
7 Participants3 Participants4 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants0 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
8 Participants5 Participants3 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
3 Participants1 Participants2 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
6 Participants4 Participants2 Participants
Region of Enrollment
United States
9 Participants5 Participants4 Participants
Sex: Female, Male
Female
9 Participants5 Participants4 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 50 / 4
other
Total, other adverse events
3 / 51 / 4
serious
Total, serious adverse events
1 / 50 / 4

Outcome results

Primary

Count of Participants That Achieve Pathologic Complete Response (PCR)

PCR is defined as the absence of any residual invasive cancer on hematoxylin and eosin (H&E) evaluation of the resected breast specimen and all sampled ipsilateral lymph nodes.

Time frame: 36 months following surgery

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm 1 (Paclitaxel, Carboplatin)Count of Participants That Achieve Pathologic Complete Response (PCR)3 Participants
Arm 2 (Veliparib, Paclitaxel, Carboplatin)Count of Participants That Achieve Pathologic Complete Response (PCR)3 Participants
Secondary

Overall Clinical Response

The count and percentage of subjects with each category of overall clinical response will be summarized by presence of baseline measureable disease (i.e., complete response \[CR\], partial response \[PR\], stable disease \[SD\], progressive disease \[PD\], unable to evaluate \[UE\], neurogenerative disease \[ND\]). Evaluated per Response Evaluation Criteria In Solid Tumors (RECIST v1.0) as assessed b MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR. Beta will be used as priors for combination regimens in calculating the posterior distribution of the pathologic complete response \[pCR\] for each respective treatment group. Among subjects with measurable disease, a 95% credible region will be calculated for the odds ratio for each treatment combination relative to each other.

Time frame: Up to 3 years

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Arm 1 (Paclitaxel, Carboplatin)Overall Clinical ResponsePartial Response2 Participants
Arm 1 (Paclitaxel, Carboplatin)Overall Clinical ResponseProgressive Disease1 Participants
Arm 1 (Paclitaxel, Carboplatin)Overall Clinical ResponsePathological Complete Response2 Participants
Arm 2 (Veliparib, Paclitaxel, Carboplatin)Overall Clinical ResponseProgressive Disease1 Participants
Arm 2 (Veliparib, Paclitaxel, Carboplatin)Overall Clinical ResponsePartial Response1 Participants
Arm 2 (Veliparib, Paclitaxel, Carboplatin)Overall Clinical ResponsePathological Complete Response2 Participants
Secondary

Relapse Free Survival

Analyzed using Kaplan-Meier methods, stratified by study group, and the log rank test will be completed.

Time frame: Up to 3 years

Population: Sincere efforts have been made to gather and report the data, however, no data is available for this outcome measure.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026