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Paclitaxel With or Without Carboplatin and/or Bevacizumab Followed by Doxorubicin and Cyclophosphamide in Treating Patients With Breast Cancer That Can Be Removed by Surgery

Randomized Phase II 2 x 2 Factorial Trial of the Addition of Carboplatin +/- Bevacizumab to Neoadjuvant Weekly Paclitaxel Followed by Dose-Dense AC in Hormone Receptor-Poor/HER2-Negative Resectable Breast Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00861705
Enrollment
454
Registered
2009-03-13
Start date
2009-07-21
Completion date
2025-09-02
Last updated
2026-06-29

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

Conditions

Male Breast Carcinoma, Stage IIA Breast Cancer AJCC v6 and v7, Stage IIB Breast Cancer AJCC v6 and v7, Stage IIIA Breast Cancer AJCC v7, Triple-Negative Breast Carcinoma

Brief summary

This randomized phase II trial studies how well paclitaxel with or without carboplatin and/or bevacizumab followed by doxorubicin and cyclophosphamide works in treating patients with breast cancer that can be removed by surgery. Drugs used in chemotherapy, such as paclitaxel, carboplatin, doxorubicin, and cyclophosphamide, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Bevacizumab may stop the growth of tumor cells by blocking blood flow to the tumor. Giving chemotherapy together with bevacizumab before surgery may make the tumor smaller and reduce the amount of normal tissue that needs to be removed.

Detailed description

PRIMARY OBJECTIVES: I. To determine whether adding bevacizumab to neoadjuvant weekly paclitaxel (+/- carboplatin) and subsequent dose-dense doxorubicin and cyclophosphamide (ddAC) significantly raises the rate of pathologic complete response (pCR) in the breast in patients with hormone receptor (HR)-poor/human epidermal growth factor receptor 2 (HER2) (-), resectable breast cancer. II. To determine whether adding carboplatin every 3 weeks to neoadjuvant weekly paclitaxel followed by ddAC (+/- bevacizumab) significantly raises the rate of pCR in the breast in patients with HR-poor/HER2(-), resectable breast cancer. III. To determine whether adding bevacizumab every 2 weeks to neoadjuvant weekly paclitaxel (+/- carboplatin) and subsequent ddAC significantly raises the rate of pCR in the breast in patients with basal-like breast cancers, as defined by gene expression array. IV. To determine whether adding carboplatin every 3 weeks to neoadjuvant weekly paclitaxel followed by ddAC (+/- bevacizumab) significantly raises the rate of pCR in the breast in patients with basal-like breast cancers, as defined by gene expression array. SECONDARY OBJECTIVES: I. To determine the pCR rates in the breast and axilla, using American Joint Committee On Cancer (AJCC) TNM criteria (version 6), to neoadjuvant weekly paclitaxel, with or without carboplatin, followed by ddAC, with or without bevacizumab, given concurrently with the weekly paclitaxel and ddAC, in (a) patients with HR-poor/HER2(-), resectable breast cancer and (b) the subset of patients with basal-like breast cancers, as defined by gene expression array. II. To assess whether there is an interaction between the addition of carboplatin and bevacizumab to neoadjuvant chemotherapy (NAC) with weekly paclitaxel followed by ddAC as regards the path pCR rates in (a) patients with HR-poor/HER2(-), resectable breast cancer and (b) the subset of patients with basal-like breast cancers, as defined by gene expression array. III. To assess the toxicity of the control regimen (weekly paclitaxel followed by ddAC) and any incremental toxicities associated with the addition of carboplatin and/or bevacizumab in this patient population, including the incidence of febrile neutropenia, grade \>= 3 thrombocytopenia, grade \>= 2 neurotoxicity, grade \>= 3 hypertension, and clinically significant bleeding or thrombotic (including cardiovascular and cerebrovascular) events. IV. To determine the recurrence-free survival (RFS) measured from definitive surgery to first event, and time to first failure (TFF) measured from study entry to first event. V. To determine overall survival (OS), defined as time from registration to death from any cause. VI. To assess the impact of NAC with weekly paclitaxel followed by ddAC, with or without carboplatin and/or bevacizumab, on axillary lymph node involvement at surgery, particularly in patients with clinically or histologically positive axillary lymph nodes prior to initiation of NAC. VII. To assess the impact of the addition of bevacizumab to NAC on the incidence and severity of post-op complications, especially excessive bleeding, delayed wound healing, and thrombotic complications. VIII. To evaluate residual cancer burden (RCB) as a predictor of RFS, TFF and OS. IX. To determine the correlation between clinical, radiographic, and pathologic response. TERTIARY OBJECTIVES: I. To assess whether the impact of the addition of carboplatin and/or bevacizumab to NAC with weekly paclitaxel followed by ddAC on achievement of pathologic CRs in patients with HR-poor/HER2(-), resectable breast cancer is influenced by molecular subtype, as defined by gene expression array. II. To obtain blood, fresh frozen and fixed tumor tissue to test specific hypotheses for which biomarker data exist and to evaluate biomarkers in tissue, blood, and serum that may influence response to and toxicity of weekly paclitaxel, ddAC, carboplatin, and/or bevacizumab. III. To obtain blood samples to test specific hypotheses for which biomarker data exist and to evaluate biomarkers in blood that may influence response to and toxicity of weekly paclitaxel, ddAC, carboplatin and/or bevacizumab. IV. To determine the surgical practice patterns for breast conservation and sentinel lymphadenectomy in patients undergoing neoadjuvant chemotherapy. V. To examine the practice patterns and use of sentinel lymphadenectomy (pre-chemotherapy or post-chemotherapy) in patients with T2 or T3 breast cancer. VI. To examine the proportion of patients who presented with T2 or T3 cancers who undergo mastectomy despite cytoreduction adequate for breast conservation. VII. To determine the radiotherapy practice patterns for post-mastectomy and regional nodal irradiation in patients undergoing neoadjuvant chemotherapy. OUTLINE: Patients are randomized to 1 of 4 treatment arms. ARM I: Patients receive paclitaxel intravenously (IV) over 60 minutes once weekly in weeks 1-12. Patients then receive dose-dense doxorubicin hydrochloride IV over 3-10 minutes and cyclophosphamide IV over 5-60 minutes (ddAC) once in weeks 13, 15, 17, and 19. ARM II: Patients receive paclitaxel and ddAC as in Arm I. Patients also receive bevacizumab IV over 30-90 minutes once in weeks 1, 3, 5, 7, 9, 11, 13, 15, and 17. ARM III: Patients receive paclitaxel and ddAC as in Arm I. Patients also receive carboplatin IV over 30 minutes once in weeks 1, 4, 7, and 10. ARM IV: Patients receive paclitaxel and ddAC as in Arm I, bevacizumab as in Arm II, and carboplatin as in Arm III. Patients in all arms undergo definitive surgery (i.e., modified radical mastectomy or breast-conserving surgery with appropriate management of the axilla) between 4-8 weeks after completion of neoadjuvant therapy. After completion of study treatment, patients are followed up periodically for up to 10 years.

Interventions

BIOLOGICALBevacizumab

Given IV

DRUGCarboplatin

Given IV

DRUGCyclophosphamide

Given IV

DRUGDoxorubicin Hydrochloride

Given IV

OTHERLaboratory Biomarker Analysis

Correlative studies

DRUGPaclitaxel

Given IV

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Invasive breast cancer, diagnosed by core needle or incisional biopsy (excisional biopsy not permitted) * The invasive tumor must be hormone receptor-poor, defined as both estrogen receptor (ER) and progesterone receptor (PgR) negative or staining present in =\< 10% of invasive cancer cells by immunohistochemistry (IHC) * The invasive tumor must be HER2-negative, defined as IHC 0-1+ or with a fluorescent in situ hybridization (FISH) ratio (HER2 gene copy/chromosome 17) of \< 2.0 if IHC 2+ * Clinical stage II-III invasive breast cancer with intent to perform surgical resection after neoadjuvant therapy; patients with inflammatory breast cancer are not eligible; staging to rule out metastatic disease is recommended for clinical stage III patients * Patients with multicentric or bilateral disease are eligible if the target lesion meets eligibility criteria * Patient agrees to undergo pretreatment research biopsies * No prior chemotherapy, hormone therapy, or radiation therapy with therapeutic intent for this cancer * The target lesion in the breast must be \>= 1 cm, clinically or radiographically; palpable or radiographically measurable axillary adenopathy will be recorded but will not serve as measurable disease for the primary endpoint; patients with axillary disease only (no identifiable tumor in the breast that is \>= 1 cm on physical exam or radiographic study) are not eligible to participate * Patients with a history of significant bleeding episodes (e.g., hemoptysis, upper or lower gastrointestinal \[GI\] bleeding) within 6 months of registration are not eligible * No serious or non-healing wound, skin ulcers or bone fracture; no abdominal fistula, gastrointestinal perforation or intra-abdominal abscess within the past 6 months; no major surgical procedure within 28 days prior to randomization or anticipation of need for major surgery during the course of study * The following are not considered to be major surgical procedures that would be prohibited in the 28 days prior to, or following study randomization: obtaining the required research needle biopsies; placement of a radiopaque clip to localize a tumor or tumors for subsequent surgical resection; placement of a port for central venous access; fine needle aspiration of a prominent or suspicious axillary lymph node; needle biopsy of a clinically or radiographically detected lesion to rule out metastatic disease; or pretreatment sentinel lymph node sampling * No baseline neuropathy grade \>= 2 * Zubrod performance status 0-1 * Pregnant or nursing women are not eligible; all women of reproductive potential must have a negative pregnancy test at baseline and agree to use an effective, non-hormonal method of contraception during the entire period of treatment on the study * Patients with congestive heart failure are not eligible, nor are patients with myocardial infarction, unstable angina pectoris, an arterial thrombotic event, stroke or transient ischemia attack (TIA) within the past 12 months, uncontrolled hypertension (systolic blood pressure \[SBP\] \> 160 or diastolic blood pressure \[DBP\] \> 90), uncontrolled or symptomatic arrhythmia, or grade II or greater peripheral vascular disease * Patients must have a pretreatment multi gated acquisition (MUGA) scan or echocardiogram with a left ventricular ejection fraction (LVEF) above the institutional lower limit of normal * Granulocytes \> 1,000/mcl * Platelets \> 100,000/mcl * Total bilirubin =\< 1.5 x upper limits of normal * Calculated or measured \> 30 ml/min * Urine protein =\< 1+ or urine protein to creatinine (UPC) ratio \< 1 * Patients discovered to have \>= 2+ proteinuria at baseline must undergo a 24-hour urine collection that must demonstrate \< 1 g of protein/24 hr, or UPC ratio \< 1 to allow participation in the study * Serum alanine aminotransferase (ALT) =\< 2.5 x upper limits of normal * Serum beta human chorionic gonadotropin (HCG) negative (for women of child bearing potential) * Prothrombin time (PT)/international normalized ratio (INR) =\< 1.5 x upper limit of normal (ULN) * Unless patient is on therapeutic doses of warfarin; if so, the patient must have an INR =\< 3 on a stable dose of warfarin, must have not active bleeding or pathologic condition that is associated with a high risk of bleeding

Design outcomes

Primary

MeasureTime frameDescription
Pathologic Complete Response (pCR) in the Breast. Defined as the Absence of Residual Invasive Carcinoma in the Breast (ypT0/is).At the time of definitive surgical removal, up to 28 weeksAssessment of the difference in percentage of participants with pCR in the breast between regimens that contain carboplatin (arms 3\&4) versus not (arms 1\&2) will use a one-sided chi square test. 95% confidence intervals around the incidence of pCR will also be constructed using exact binomial methods.

Secondary

MeasureTime frameDescription
Incidence and Severity of Post-op Complications, Namely Excessive Bleeding, Delayed Wound Healing, and Wound Dehiscence.at definitive surgery, up to 28 weeksAssessed by physician observation.
Pathologic Complete Response (pCR) in the Breast and Axilla. Defined as the Absence of Residual Invasive Carcinoma in the Breast (ypT0/is) Plus the Absence of Any Tumor Deposit >0.2 mm in Sampled Axillary Nodes (ypT0/isN0).At the time of definitive surgical removal, up to 28 weeksComparing regimens that contain carboplatin (arms 3\&4) versus not (arms 1\&2).
Pathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)at definitive surgery, up to 28 weeksStage II is (T2,T3, N0, M0) tumor size more than 2 cm but no deep extradermal structure invasion, no regional lymph node metastasis, and no distant metastasis. Stage III is (T4, N0, M0) tumor invasion of deep extradermal structures, no regional lymph node metasis, and no distant metasasis or (Any T, N1, M0) Any tumor size, regional lymph node metastasis, and no distant metastasis.
Radiographic Response Assessed by Tumor MeasurementBaseline; at completion of neoadjuvant therapyAssessed by RECIST, each patient will have a pre-therapy baseline radiographic tumor measurement, preferably by MRI, however if logistic or practical or financial issues preclude MRI use, mammogram or ultrasound may be substituted. The longest diameter (LD) of the target lesion at the time of study initiation will be reported as the baseline LD. The baseline LD of the target lesion will be used as reference to further characterize the objective tumor response of the measurable dimension of the disease. Radiographic complete response: Disappearance of the target lesion. Radiographic partial response (PR): At least a 30% decrease in the longest diameter (LD) of the target lesion taking as reference the baseline LD.
Clinical Response Assessed by Tumor MeasurementBaseline; at completion of neoadjuvant therapyAssessed by Response Evaluation Criteria in Solid Tumors (RECIST). Both target and, in the event of multifocal or multicentric invasive breast cancer, nontarget lesions should be followed clinically and their clinical size recorded at aseline. Measurements thereafter are required at the completion of 12 weeks of paclitaxel or paclitaxel/carboplatin and at the completion of all neoadjuvant chemotherapy. At any time point, these lesions should be categorized regarding whether there is evidence of progression. If "yes", the study chair should be notified in order to determine whether the patient should come off protocol treatment. In-situcarcinoma does not represent a non-target lesion and should not be recorded or followed.
Overall Survivalup to 10 yearsNumber of Participants who Died Due to Any Cause
Count of Participants With a First Failure, Defined as First Instance of Ipsilateral Invasive Breast Tumor Recurrence, Local/Regional Invasive Breast Cancer Recurrence, Distant Recurrence, or Death From Any Causeup to 10 yearsFrom study entry to first event.
Recurrence-free Survivalup to 10 yearsFrom definitive surgery to first instance of ipsilateral invasive breast tumor recurrence, local/regional invasive breast cancer recurrence, distant recurrence, or death from any cause. Number of Participants who Died Due to Any Cause or had a recurrence.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORWilliam M Sikov

Alliance for Clinical Trials in Oncology

Participant flow

Participants by arm

ArmCount
Arm 1 (Pac --> ddAC)
Patients receive paclitaxel (pac) IV over 60 minutes once weekly in weeks 1-12. Patients then receive dose-dense doxorubicin hydrochloride IV over 5-10 minutes and cyclophosphamide IV over 5-30 minutes (ddAC) once in weeks 13, 15, 17, and 19. doxorubicin hydrochloride: Given IV paclitaxel: Given IV cyclophosphamide: Given IV
115
Arm 2 (Pac + Bev --> ddAC + Bev)
Patients receive pac and ddAC as in arm 1. Patients also receive bevacizumab (bev) IV over 30-90 minutes in weeks 1, 3, 5, 7, 9, 11, 13, 15, and 17. doxorubicin hydrochloride: Given IV paclitaxel: Given IV cyclophosphamide: Given IV bevacizumab: Given IV
113
Arm 3 (Pac + Carboplatin --> ddAC)
Patients receive pac and ddAC as in arm 1. Patients also receive carboplatin IV over 30 minutes once in weeks 1, 4, 7, and 10. doxorubicin hydrochloride: Given IV paclitaxel: Given IV cyclophosphamide: Given IV carboplatin: Given IV
113
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)
Patients receive pac and ddAC as in arm 1, bev as in arm 2, and carboplatin as in arm 3. doxorubicin hydrochloride: Given IV paclitaxel: Given IV cyclophosphamide: Given IV bevacizumab: Given IV carboplatin: Given IV
113
Total454

Baseline characteristics

CharacteristicArm 3 (Pac + Carboplatin --> ddAC)Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)TotalArm 1 (Pac --> ddAC)Arm 2 (Pac + Bev --> ddAC + Bev)
Age, Continuous50.9 years
STANDARD_DEVIATION 10.8
47.1 years
STANDARD_DEVIATION 9.8
49.1 years
STANDARD_DEVIATION 10.7
50.2 years
STANDARD_DEVIATION 11.1
48.3 years
STANDARD_DEVIATION 10.8
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants2 Participants3 Participants1 Participants0 Participants
Race (NIH/OMB)
Asian
4 Participants3 Participants13 Participants1 Participants5 Participants
Race (NIH/OMB)
Black or African American
27 Participants21 Participants89 Participants20 Participants21 Participants
Race (NIH/OMB)
More than one race
1 Participants2 Participants5 Participants1 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants1 Participants1 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants4 Participants12 Participants5 Participants2 Participants
Race (NIH/OMB)
White
80 Participants81 Participants331 Participants86 Participants84 Participants
Sex: Female, Male
Female
113 Participants113 Participants454 Participants115 Participants113 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
other
Total, other adverse events
107 / 108104 / 108106 / 109109 / 112
serious
Total, serious adverse events
15 / 10827 / 10821 / 10939 / 112

Outcome results

Primary

Pathologic Complete Response (pCR) in the Breast. Defined as the Absence of Residual Invasive Carcinoma in the Breast (ypT0/is).

Assessment of the difference in percentage of participants with pCR in the breast between regimens that contain carboplatin (arms 3&4) versus not (arms 1&2) will use a one-sided chi square test. 95% confidence intervals around the incidence of pCR will also be constructed using exact binomial methods.

Time frame: At the time of definitive surgical removal, up to 28 weeks

Population: All patients who began protocol neoadjuvant therapy and are assessable for pCR endpoint (N=433).

ArmMeasureValue (NUMBER)
Factor A: CarboplatinPathologic Complete Response (pCR) in the Breast. Defined as the Absence of Residual Invasive Carcinoma in the Breast (ypT0/is).60 percentage of participants with pCR
Factor A: No CarboplatinPathologic Complete Response (pCR) in the Breast. Defined as the Absence of Residual Invasive Carcinoma in the Breast (ypT0/is).46 percentage of participants with pCR
Comparison: The study was designed to detect an increase in the incidence of pCR from 35% in the control arm to 55% in the experimental arm using a 1-sided chi square test of proportions. With a target sample of 362 patients and assuming a 10% dropout rate, an overall assessable sample size of 326 patients resulted in \> 95% power.p-value: 0.0018Chi-squared
Primary

Pathologic Complete Response (pCR) in the Breast. Defined as the Absence of Residual Invasive Carcinoma in the Breast (ypT0/is).

Assessment of the difference in percentage of participants with pCR in the breast between regimens that contain bevacizumab (arms 2&4) versus not (arms 1&3) will use a one-sided chi square test. 95% confidence intervals around the incidence of pCR will also be constructed using exact binomial methods.

Time frame: At the time of definitive surgical removal, up to 28 weeks

Population: All patients who began protocol neoadjuvant therapy and are assessable for pCR endpoint (N=433).

ArmMeasureValue (NUMBER)
Factor A: CarboplatinPathologic Complete Response (pCR) in the Breast. Defined as the Absence of Residual Invasive Carcinoma in the Breast (ypT0/is).59 percentage of participants with pCR
Factor A: No CarboplatinPathologic Complete Response (pCR) in the Breast. Defined as the Absence of Residual Invasive Carcinoma in the Breast (ypT0/is).48 percentage of participants with pCR
Comparison: The study was designed to detect an increase in the incidence of pCR from 35% in the control arm to 55% in the experimental arm using a 1-sided chi square test of proportions. With a target sample of 362 patients and assuming a 10% dropout rate, an overall assessable sample size of 326 patients resulted in \> 95% power.p-value: 0.0089Chi-squared
Secondary

Clinical Response Assessed by Tumor Measurement

Assessed by Response Evaluation Criteria in Solid Tumors (RECIST). Both target and, in the event of multifocal or multicentric invasive breast cancer, nontarget lesions should be followed clinically and their clinical size recorded at aseline. Measurements thereafter are required at the completion of 12 weeks of paclitaxel or paclitaxel/carboplatin and at the completion of all neoadjuvant chemotherapy. At any time point, these lesions should be categorized regarding whether there is evidence of progression. If yes, the study chair should be notified in order to determine whether the patient should come off protocol treatment. In-situcarcinoma does not represent a non-target lesion and should not be recorded or followed.

Time frame: Baseline; at completion of neoadjuvant therapy

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Factor A: CarboplatinClinical Response Assessed by Tumor MeasurementComplete Response28 Participants
Factor A: CarboplatinClinical Response Assessed by Tumor MeasurementFailures43 Participants
Factor A: CarboplatinClinical Response Assessed by Tumor MeasurementPartial Response37 Participants
Factor A: No CarboplatinClinical Response Assessed by Tumor MeasurementComplete Response35 Participants
Factor A: No CarboplatinClinical Response Assessed by Tumor MeasurementFailures37 Participants
Factor A: No CarboplatinClinical Response Assessed by Tumor MeasurementPartial Response38 Participants
Arm 3 (Pac + Carboplatin --> ddAC)Clinical Response Assessed by Tumor MeasurementPartial Response36 Participants
Arm 3 (Pac + Carboplatin --> ddAC)Clinical Response Assessed by Tumor MeasurementComplete Response45 Participants
Arm 3 (Pac + Carboplatin --> ddAC)Clinical Response Assessed by Tumor MeasurementFailures31 Participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Clinical Response Assessed by Tumor MeasurementComplete Response40 Participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Clinical Response Assessed by Tumor MeasurementFailures35 Participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Clinical Response Assessed by Tumor MeasurementPartial Response37 Participants
Secondary

Count of Participants With a First Failure, Defined as First Instance of Ipsilateral Invasive Breast Tumor Recurrence, Local/Regional Invasive Breast Cancer Recurrence, Distant Recurrence, or Death From Any Cause

From study entry to first event.

Time frame: up to 10 years

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Factor A: CarboplatinCount of Participants With a First Failure, Defined as First Instance of Ipsilateral Invasive Breast Tumor Recurrence, Local/Regional Invasive Breast Cancer Recurrence, Distant Recurrence, or Death From Any CauseWithout event85 Participants
Factor A: CarboplatinCount of Participants With a First Failure, Defined as First Instance of Ipsilateral Invasive Breast Tumor Recurrence, Local/Regional Invasive Breast Cancer Recurrence, Distant Recurrence, or Death From Any CauseWith event23 Participants
Factor A: No CarboplatinCount of Participants With a First Failure, Defined as First Instance of Ipsilateral Invasive Breast Tumor Recurrence, Local/Regional Invasive Breast Cancer Recurrence, Distant Recurrence, or Death From Any CauseWithout event84 Participants
Factor A: No CarboplatinCount of Participants With a First Failure, Defined as First Instance of Ipsilateral Invasive Breast Tumor Recurrence, Local/Regional Invasive Breast Cancer Recurrence, Distant Recurrence, or Death From Any CauseWith event26 Participants
Arm 3 (Pac + Carboplatin --> ddAC)Count of Participants With a First Failure, Defined as First Instance of Ipsilateral Invasive Breast Tumor Recurrence, Local/Regional Invasive Breast Cancer Recurrence, Distant Recurrence, or Death From Any CauseWith event28 Participants
Arm 3 (Pac + Carboplatin --> ddAC)Count of Participants With a First Failure, Defined as First Instance of Ipsilateral Invasive Breast Tumor Recurrence, Local/Regional Invasive Breast Cancer Recurrence, Distant Recurrence, or Death From Any CauseWithout event84 Participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Count of Participants With a First Failure, Defined as First Instance of Ipsilateral Invasive Breast Tumor Recurrence, Local/Regional Invasive Breast Cancer Recurrence, Distant Recurrence, or Death From Any CauseWith event22 Participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Count of Participants With a First Failure, Defined as First Instance of Ipsilateral Invasive Breast Tumor Recurrence, Local/Regional Invasive Breast Cancer Recurrence, Distant Recurrence, or Death From Any CauseWithout event90 Participants
95% CI: [0.66, 2.03]
95% CI: [0.72, 2.16]
95% CI: [0.53, 1.7]
Secondary

Incidence and Severity of Post-op Complications, Namely Excessive Bleeding, Delayed Wound Healing, and Wound Dehiscence.

Assessed by physician observation.

Time frame: at definitive surgery, up to 28 weeks

ArmMeasureGroupValue (NUMBER)
Factor A: CarboplatinIncidence and Severity of Post-op Complications, Namely Excessive Bleeding, Delayed Wound Healing, and Wound Dehiscence.Excessive bleeding0 percentage of participants with event
Factor A: CarboplatinIncidence and Severity of Post-op Complications, Namely Excessive Bleeding, Delayed Wound Healing, and Wound Dehiscence.Delayed healing1 percentage of participants with event
Factor A: CarboplatinIncidence and Severity of Post-op Complications, Namely Excessive Bleeding, Delayed Wound Healing, and Wound Dehiscence.Wound dehiscence1 percentage of participants with event
Factor A: No CarboplatinIncidence and Severity of Post-op Complications, Namely Excessive Bleeding, Delayed Wound Healing, and Wound Dehiscence.Excessive bleeding0 percentage of participants with event
Factor A: No CarboplatinIncidence and Severity of Post-op Complications, Namely Excessive Bleeding, Delayed Wound Healing, and Wound Dehiscence.Delayed healing0 percentage of participants with event
Factor A: No CarboplatinIncidence and Severity of Post-op Complications, Namely Excessive Bleeding, Delayed Wound Healing, and Wound Dehiscence.Wound dehiscence0 percentage of participants with event
Secondary

Overall Survival

Number of Participants who Died Due to Any Cause

Time frame: up to 10 years

Population: All treated patients

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Factor A: CarboplatinOverall Survival22 Participants
Factor A: No CarboplatinOverall Survival26 Participants
Arm 3 (Pac + Carboplatin --> ddAC)Overall Survival30 Participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Overall Survival24 Participants
95% CI: [0.67, 2.1]
95% CI: [0.82, 2.47]
95% CI: [0.49, 1.37]
Secondary

Pathologic Complete Response (pCR) in the Breast and Axilla. Defined as the Absence of Residual Invasive Carcinoma in the Breast (ypT0/is) Plus the Absence of Any Tumor Deposit >0.2 mm in Sampled Axillary Nodes (ypT0/isN0).

Comparing regimens that contain carboplatin (arms 3&4) versus not (arms 1&2).

Time frame: At the time of definitive surgical removal, up to 28 weeks

ArmMeasureValue (NUMBER)
Factor A: CarboplatinPathologic Complete Response (pCR) in the Breast and Axilla. Defined as the Absence of Residual Invasive Carcinoma in the Breast (ypT0/is) Plus the Absence of Any Tumor Deposit >0.2 mm in Sampled Axillary Nodes (ypT0/isN0).54 percentage of participants with pCR
Factor A: No CarboplatinPathologic Complete Response (pCR) in the Breast and Axilla. Defined as the Absence of Residual Invasive Carcinoma in the Breast (ypT0/is) Plus the Absence of Any Tumor Deposit >0.2 mm in Sampled Axillary Nodes (ypT0/isN0).41 percentage of participants with pCR
p-value: 0.0029Chi-squared
Secondary

Pathologic Complete Response (pCR) in the Breast and Axilla. Defined as the Absence of Residual Invasive Carcinoma in the Breast (ypT0/is) Plus the Absence of Any Tumor Deposit >0.2 mm in Sampled Axillary Nodes (ypT0/isN0).

Comparing regimens that contain bevacizumab (arms 2&4) versus not (arms 1&3).

Time frame: At the time of definitive surgical removal, up to 28 weeks

ArmMeasureValue (NUMBER)
Factor A: CarboplatinPathologic Complete Response (pCR) in the Breast and Axilla. Defined as the Absence of Residual Invasive Carcinoma in the Breast (ypT0/is) Plus the Absence of Any Tumor Deposit >0.2 mm in Sampled Axillary Nodes (ypT0/isN0).52 percentage of participants with pCR
Factor A: No CarboplatinPathologic Complete Response (pCR) in the Breast and Axilla. Defined as the Absence of Residual Invasive Carcinoma in the Breast (ypT0/is) Plus the Absence of Any Tumor Deposit >0.2 mm in Sampled Axillary Nodes (ypT0/isN0).44 percentage of participants with pCR
p-value: 0.057Chi-squared
Secondary

Pathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)

Stage II is (T2,T3, N0, M0) tumor size more than 2 cm but no deep extradermal structure invasion, no regional lymph node metastasis, and no distant metastasis. Stage III is (T4, N0, M0) tumor invasion of deep extradermal structures, no regional lymph node metasis, and no distant metasasis or (Any T, N1, M0) Any tumor size, regional lymph node metastasis, and no distant metastasis.

Time frame: at definitive surgery, up to 28 weeks

ArmMeasureGroupValue (NUMBER)
Factor A: CarboplatinPathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast : Stage II42 participants
Factor A: CarboplatinPathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast : Stage III42 participants
Factor A: CarboplatinPathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast/Axilla : Stage II41 participants
Factor A: CarboplatinPathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast/Axilla : Stage III36 participants
Factor A: No CarboplatinPathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast : Stage III55 participants
Factor A: No CarboplatinPathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast/Axilla : Stage II42 participants
Factor A: No CarboplatinPathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast/Axilla : Stage III45 participants
Factor A: No CarboplatinPathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast : Stage II49 participants
Arm 3 (Pac + Carboplatin --> ddAC)Pathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast/Axilla : Stage II47 participants
Arm 3 (Pac + Carboplatin --> ddAC)Pathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast : Stage III57 participants
Arm 3 (Pac + Carboplatin --> ddAC)Pathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast/Axilla : Stage III51 participants
Arm 3 (Pac + Carboplatin --> ddAC)Pathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast : Stage II51 participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Pathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast/Axilla : Stage III54 participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Pathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast : Stage III62 participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Pathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast : Stage II70 participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Pathologic Stage in the Breast and in the Breast Plus Axilla as Measured by American Joint Committee on Cancer (AJCC) Tumor Node Metastasis (TNM) Staging Criteria (Version 6)Breast/Axilla : Stage II63 participants
Secondary

Radiographic Response Assessed by Tumor Measurement

Assessed by RECIST, each patient will have a pre-therapy baseline radiographic tumor measurement, preferably by MRI, however if logistic or practical or financial issues preclude MRI use, mammogram or ultrasound may be substituted. The longest diameter (LD) of the target lesion at the time of study initiation will be reported as the baseline LD. The baseline LD of the target lesion will be used as reference to further characterize the objective tumor response of the measurable dimension of the disease. Radiographic complete response: Disappearance of the target lesion. Radiographic partial response (PR): At least a 30% decrease in the longest diameter (LD) of the target lesion taking as reference the baseline LD.

Time frame: Baseline; at completion of neoadjuvant therapy

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Factor A: CarboplatinRadiographic Response Assessed by Tumor MeasurementComplete Response11 Participants
Factor A: CarboplatinRadiographic Response Assessed by Tumor MeasurementFailures81 Participants
Factor A: CarboplatinRadiographic Response Assessed by Tumor MeasurementPartial Response16 Participants
Factor A: No CarboplatinRadiographic Response Assessed by Tumor MeasurementComplete Response12 Participants
Factor A: No CarboplatinRadiographic Response Assessed by Tumor MeasurementFailures87 Participants
Factor A: No CarboplatinRadiographic Response Assessed by Tumor MeasurementPartial Response11 Participants
Arm 3 (Pac + Carboplatin --> ddAC)Radiographic Response Assessed by Tumor MeasurementPartial Response16 Participants
Arm 3 (Pac + Carboplatin --> ddAC)Radiographic Response Assessed by Tumor MeasurementComplete Response19 Participants
Arm 3 (Pac + Carboplatin --> ddAC)Radiographic Response Assessed by Tumor MeasurementFailures77 Participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Radiographic Response Assessed by Tumor MeasurementComplete Response13 Participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Radiographic Response Assessed by Tumor MeasurementFailures82 Participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Radiographic Response Assessed by Tumor MeasurementPartial Response17 Participants
Secondary

Recurrence-free Survival

From definitive surgery to first instance of ipsilateral invasive breast tumor recurrence, local/regional invasive breast cancer recurrence, distant recurrence, or death from any cause. Number of Participants who Died Due to Any Cause or had a recurrence.

Time frame: up to 10 years

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Factor A: CarboplatinRecurrence-free SurvivalWith event32 Participants
Factor A: CarboplatinRecurrence-free SurvivalWithout event76 Participants
Factor A: No CarboplatinRecurrence-free SurvivalWithout event76 Participants
Factor A: No CarboplatinRecurrence-free SurvivalWith event34 Participants
Arm 3 (Pac + Carboplatin --> ddAC)Recurrence-free SurvivalWith event37 Participants
Arm 3 (Pac + Carboplatin --> ddAC)Recurrence-free SurvivalWithout event75 Participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Recurrence-free SurvivalWith event27 Participants
Arm 4 (Pac + Carboplatin + Bev --> ddAC + Bev)Recurrence-free SurvivalWithout event85 Participants
95% CI: [0.66, 1.75]
95% CI: [0.74, 1.92]
95% CI: [0.49, 1.37]

Source: ClinicalTrials.gov · Data processed: Aug 5, 2026