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Treatment With Pazopanib for Neoadjuvant Breast Cancer

A Phase II Clinical Trial of Four Cycles of Doxorubicin and Cyclophosphamide Followed by Weekly Paclitaxel Given Concurrently With Pazopanib as Neoadjuvant Therapy Followed by Postoperative Pazopanib for Women With Locally Advanced Breast Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00849472
Enrollment
101
Registered
2009-02-23
Start date
2009-07-31
Completion date
2013-04-30
Last updated
2014-03-04

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

Conditions

Neoplasms, Breast

Keywords

Neoadjuvant Breast Cancer, Pazopanib (GW786034), NSABP Foundation, Inc., cyclophosphamide, Paclitaxel, Doxorubicin

Brief summary

The purpose of this study is to determine whether the treatment of a doxorubicin in combination with cyclophosphamide followed by a combination of pazopanib in combination with paclitaxel prior to surgery results in a pathological complete response in females with breast cancer.

Detailed description

This is a phase II non-randomized, multi-center study aimed to evaluate the efficacy and safety of the combination of pazopanib and paclitaxel following treatment with cyclophosphamide and doxorubicin for the treatment of neoadjuvant breast cancer. Patients will receive standard doses of AC every 21 days for 4 cycles. This will be followed by weekly paclitaxel 80 mg/m2 IV on Days 1, 8, and 15 every 28 days for 4 cycles given concurrently with pazopanib 800 mg PO daily starting with the first paclitaxel dose and continuing until 7 days before surgery. Clinical complete response rate will be determined by tumor assessments performed by palpation at two time points: following AC (before paclitaxel/pazopanib begins) and 2-4 weeks following the last dose of paclitaxel (before surgery). Following recovery from preoperative therapy, patients will undergo the clinically-indicated surgery. Pazopanib will resume 4-6 weeks after surgery and continue daily for 6 months of postoperative pazopanib therapy.

Interventions

DRUGdoxorubicin + cyclophosphamide

4 cycles of doxorubicin + cyclophosphamide followed by 4 cycles of paclitaxel + pazopanib.

DRUGpaclitaxel + pazopanib

4 cycles of paclitaxel + pazopanib

PROCEDUREsurgery

neoadjuvant surgery for breast cancer

DRUGpazopanib monotherapy

6 months of treatment with pazopanib monotherapy

Sponsors

NSABP Foundation Inc
CollaboratorNETWORK
GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* The patient must have consented to participate and must have signed and dated an appropriate IRB-approved consent form that conforms to federal and institutional guidelines for the study treatment and submission of tumor and blood samples required for the FB-6 correlative science studies * The ECOG performance status must be 0 or 1 * Patients must have the ability to swallow oral medication. * The diagnosis of invasive adenocarcinoma of the breast must have been made by core needle biopsy or limited incisional biopsy. * Patients must have ER analysis performed on the primary tumor prior to randomization. If ER analysis is negative, then PgR analysis must also be performed. (Patients are eligible with either hormone receptor-positive or hormone receptor-negative tumors.) * Patients must have clinical stage IIIA, IIIB, or IIIC disease with a mass in the breast or axilla measuring at least 2.0 cm by physical exam, unless the patient has inflammatory breast cancer, in which case measurable disease by physical exam is not required. * Adequate organ function * LVEF assessment by 2-D echocardiogram or MUGA scan performed within 3 months prior to study entry must be greater or equal to 50% regardless of the facility's LLN. * ECG performed within 4 weeks before study entry must demonstrate a QTc interval that is less than or equal to 0.47 seconds. * The TSH level must be within normal limits for the laboratory.

Exclusion criteria

* Tumor that has been determined to be HER2-positive by immunohistochemistry (3+) or by FISH or CISH (positive for gene amplification), or has been determined to be HER2-equivocal and the investigator plans to administer trastuzumab or other targeted therapy. * FNA alone to diagnose the primary breast cancer. * Excisional biopsy or lumpectomy performed prior to study entry. * Surgical axillary staging procedure prior to study entry. * Definitive clinical or radiologic evidence of metastatic disease. * History of ipsilateral invasive breast cancer regardless of treatment or ipsilateral DCIS treated with RT. * Contralateral invasive breast cancer at any time. * Non-breast malignancies unless the patient is considered to be disease-free for 5 or more years prior to study entry and is deemed by her physician to be at low risk for recurrence. Patients with the following cancers are eligible if diagnosed and treated within the past 5 years: carcinoma in situ of the cervix, carcinoma in situ of the colon, melanoma in situ, and basal cell and squamous cell carcinoma of the skin. * Requirement for chronic use of any of the prohibited medications or substances * Previous therapy with anthracyclines, taxanes, or pazopanib for any malignancy. * Treatment including RT, chemotherapy, and/or targeted therapy, administered for the currently diagnosed breast cancer prior to study entry. * Continued therapy with any hormonal agent such as raloxifene, tamoxifen, or other SERM. * Any sex hormonal therapy, e.g., birth control pills and ovarian hormone replacement therapy * History of hepatitis B or C. * Symptomatic pancreatitis or asymptomatic greater or equal to grade 2 elevation of amylase or lipase as per NCI CTCAE v3.0. * History of documented pancreatitis. * Uncontrolled hypertension defined as systolic BP greater than 140 mmHg or diastolic BP greater greater than 90 mmHg, with or without anti-hypertensive medication. * History of hypertensive crisis or hypertensive encephalopathy. * Cardiac disease that would preclude the use of any of the drugs included in the FB-6 treatment regimen. * History of TIA or CVA. * History of any arterial thrombotic event within 12 months prior to study entry. * Pulmonary embolism or DVT within 6 months prior to study entry. * Symptomatic peripheral vascular disease. * Any significant bleeding within 6 months prior to study entry, exclusive of menorrhagia in premenopausal women. * Known bleeding diathesis, coagulopathy, or requirement for therapeutic doses of coumadin. * Serious or non-healing wound, skin ulcers, or bone fracture. * Gastroduodenal ulcer(s) determined by endoscopy to be active. * History of GI perforation, abdominal fistulae, or intra-abdominal abscess. * Malabsorption syndrome, ulcerative colitis, inflammatory bowel disease, resection of the stomach or small bowel, or other disease significantly affecting gastrointestinal function. * Sensory/motor neuropathy greater or equal to grade 2, as defined by the NCI's CTCAE v3.0. * Conditions that would prohibit intermittent administration of corticosteroids for paclitaxel premedication. * Anticipation of need for major surgical procedures (other than the required breast surgery) during the course of study therapy and for at least 3 months following the last dose of pazopanib. * Pregnancy or lactation at the time of study entry. * Other nonmalignant systemic disease that would preclude the patient from receiving study treatment or would prevent required follow-up. * Known immediate or delayed hypersensitivity reaction to doxorubicin, cyclophosphamide, paclitaxel, pazopanib, or drugs chemically related to pazopanib. * Use of any investigational agent within 4 weeks prior to enrollment in the study.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Pathologic Complete Response (pCR) in the Breast and NodesFrom the start of the study until the time of surgery (average of 221.9 days [standard deviation of 23.65 days] after study entry)pCR was defined as no histologic evidence of invasive tumor cells in the surgical breast specimen, axillary nodes, or sentinel node identified after neoadjuvant chemotherapy.

Secondary

MeasureTime frameDescription
Number of Participants With Clinical Complete Response (cCR) in the Breast and Nodes at the Completion of the Doxorubicin and Cyclophosphamide (AC) PeriodFrom the start of the study until an average of 86.2 days (standard deviation of 5.76 days) after study entrycCR was determined by tumor assessments performed by palpation. All clinical response assessments were to be performed by physical examination of the breast and the axilla. cCR was defined as the resolution of all target and non-target lesions identified at Baseline and no new lesions or other signs of disease progression. The criteria to be used for the determination of progressive disease were at the investigator's discretion.
Number of Participants With Clinical CR (cCR) in the Breast and Nodes at the Completion of the AC and Weekly Paclitaxel (WP) + Pazopanib Preoperative PeriodsFrom the start of the study until the preoperative evaluation (an average of 203.0 days [standard deviation of 23.19 days] after study entry)cCR was determined by tumor assessments performed by palpation. All clinical response assessments were to be performed by physical examination of the breast and the axilla. cCR was defined as the resolution of all target and non-target lesions identified at Baseline and no new lesions or other signs of disease progression. The criteria to be used for the determination of progressive disease were at the investigator's discretion.
Invasive Recurrence-free Interval (IRFI)up to 24 months after study entryIRFI was assessed as the time from study entry until the diagnosis of the first invasive local (evidence of invasive/in situ breast cancer \[except LCIS\] in the ipsilateral breast \[IB\]/skin of the breast), regional (development of tumor in the ipsilateral \[IP\] internal mammary, IP supraclavicular, IP infraclavicular, and/or IP axillary nodes, as well as the soft tissue of the IP axilla, following surgery), or distant (evidence of tumor in all areas, with the exception of those described for local and regional recurrence) breast cancer recurrence during the 24 months after study entry.
Number of Participants With Cardiac Toxicity (Per Common Terminology Criteria for Adverse Events Version 3) at the Completion of the AC PeriodFrom the start of the study until the preoperative evaluation (an average of 86.2 days [standard deviation of 5.76 days] after study entry)The number of participants with cardiac toxicity was defined as those who had cardiac events of Grades (G) 3 and 4 leftventricular dysfunction (LVD) (CTCAE Version 3.0) and/or who had definite or probable cardiac death. Grade refers to the severity of the AE: G 1, mild AE; G 2, moderate AE; G 3, severe AE; G 4, life-threatening/disabling AE; G 5, death related to the AE. A G3 LVD event is defined as symptomatic congestive heart failure (CHF) responsive to intervention. A G4 event is defined as poorly controlled refractory CHF; ventricular assist device or heart transplant indicated.
Number of Participants With Pathologic Complete Response (pCR) in the BreastFrom the start of the study until the time of surgery (average of 221.9 [standard deviation of 23.65 days] days after study entry)pCR was defined as no histologic evidence of invasive tumor cells in the surgical breast specimen.
Number of Participants With Cardiac Toxicity (Per CTCAE Version 3.0) During the Postoperative Pazopanib PeriodFrom the start of the study until the end of the postoperative pazopanib period, which coincides with the start of the end of treatment period (an average of 310.8 days [standard deviation of 85.29 days] after study entry)The number of participants with cardiac toxicity was defined as those who had cardiac events of Grades (G) 3 and 4 leftventricular dysfunction (LVD) (CTCAE Version 3.0) and/or who had definite or probable cardiac death. Grade refers to the severity of the AE: G 1, mild AE; G 2, moderate AE; G 3, severe AE; G 4, life-threatening/disabling AE; G 5, death related to the AE. A G3 LVD event is defined as symptomatic congestive heart failure (CHF) responsive to intervention. A G4 event is defined as poorly controlled refractory CHF; ventricular assist device or heart transplant indicated.
Participants With Normal Thyroid Stimulating Hormone (TSH) Levels at Baseline Who Had an Elevated TSH Level at Least Once During the Study and During the Individual Study Periodsup to 24 months after study entryThe number of participants with normal thyroid function at Baseline who had an elevation in TSH during the study were recorded. TSH elevation was derived based on local laboratory ranges.
Number of Participants With the Indicated Radiotherapy-related Complicationsup to 24 months after study entry
Number of Participants With Recurrence Eventsup to 24 months after study entryThe number of participants with recurrence events during the 24 months after study entry are reported. A recurrence event is defined as invasive local (evidence of invasive/in situ breast cancer \[except LCIS\] in the ipsilateral breast \[IB\]/skin of the breast), regional (development of tumor in the ipsilateral \[IP\] internal mammary, IP supraclavicular, IP infraclavicular, and/or IP axillary nodes, as well as the soft tissue of the IP axilla, following surgery), or distant (evidence of tumor in all areas, with the exception of those described for local and regional recurrence) breast cancer recurrence during the 24 months after study entry.
Number of Participants With Cardiac Toxicity (Per CTCAE Version 3) at the Completion of the AC and Weekly Paclitaxel (WP) + Pazopanib Preoperative PeriodsFrom the start of the study until the preoperative evaluation (an average of 203.0 days [standard deviation of 23.19 days] after study entry).The number of participants with cardiac toxicity was defined as those who had cardiac events of Grades (G) 3 and 4 leftventricular dysfunction (LVD) (CTCAE Version 3.0) and/or who had definite or probable cardiac death. Grade refers to the severity of the AE: G 1, mild AE; G 2, moderate AE; G 3, severe AE; G 4, life-threatening/disabling AE; G 5, death related to the AE. A G3 LVD event is defined as symptomatic congestive heart failure (CHF) responsive to intervention. A G4 event is defined as poorly controlled refractory CHF; ventricular assist device or heart transplant indicated.

Countries

Canada, United States

Participant flow

Participants by arm

ArmCount
AC, Followed by Weekly Paclitaxel and Concurrent Pazopanib
Participants were treated with intravenous (IV) doxorubicin (60 milligrams per meters squared \[mg/m\^2\]) and cyclophosphamide (AC) (600 mg/m\^2) every 21 days for 4 cycles. This was followed by weekly paclitaxel (WP) 80 mg/m\^2 IV on Days 1, 8, and 15 every 28 days for 4 cycles given concurrently with oral pazopanib 800 mg (2 tablets taken at the same time each day, either 1 hour before or 2 hours after a meal) taken daily and continuing until 7 days before surgery. Pazopanib was resumed at the same oral dose 4-6 weeks after surgery and was continued daily for 6 months.
101
Total101

Withdrawals & dropouts

PeriodReasonFG000
Doxorubicin and Cyclophosphamide (AC)Adverse Event1
Doxorubicin and Cyclophosphamide (AC)Disease Progression2
Doxorubicin and Cyclophosphamide (AC)Participant Moved1
Doxorubicin and Cyclophosphamide (AC)Physician Decision1
Doxorubicin and Cyclophosphamide (AC)Withdrawal by Subject1
Pazopanib Postsurgery TreatmentAdverse Event19
Pazopanib Postsurgery TreatmentMoved1
Pazopanib Postsurgery TreatmentSite Thought Treatment Was Completed1
Pazopanib Postsurgery TreatmentWithdrawal by Subject5
Pazopanib Presurgery Treatment (PPT)Adverse Event52
Pazopanib Presurgery Treatment (PPT)Never Started Pre-operative Pazopanib1
Pazopanib Presurgery Treatment (PPT)Physician Decision1
Pazopanib Presurgery Treatment (PPT)Withdrawal by Subject4
Weekly PaclitaxelAdverse Event11
Weekly PaclitaxelDisease Progression1
Weekly PaclitaxelPhysician Decision3
Weekly PaclitaxelWithdrawal by Subject1

Baseline characteristics

CharacteristicAC, Followed by Weekly Paclitaxel and Concurrent Pazopanib
Age, Continuous50.9 Years
STANDARD_DEVIATION 9.72
Number of participants with a positive or negative status for the indicated hormone receptors
ER status negative
28 participants
Number of participants with a positive or negative status for the indicated hormone receptors
Estrogen receptor (ER) status positive
73 participants
Number of participants with a positive or negative status for the indicated hormone receptors
HER-2/NEU status equivocal (uncertain)
1 participants
Number of participants with a positive or negative status for the indicated hormone receptors
HER-2/NEU status negative
99 participants
Number of participants with a positive or negative status for the indicated hormone receptors
HER-2/NEU status positive
1 participants
Number of participants with a positive or negative status for the indicated hormone receptors
PgR status negative
39 participants
Number of participants with a positive or negative status for the indicated hormone receptors
Progesterone receptor (PgR) status positive
62 participants
Number of participants with the indicted hormonal status (ER+ and PR+ / ER- and PR-)
Negative
27 participants
Number of participants with the indicted hormonal status (ER+ and PR+ / ER- and PR-)
Positive
74 participants
Race/Ethnicity, Customized
African American/African Heritage
10 participants
Race/Ethnicity, Customized
AI or AN + White - W/C/EH
1 participants
Race/Ethnicity, Customized
American Indian (AI) or Alaskan Native (AN)
1 participants
Race/Ethnicity, Customized
Asian - Central/South Asian Heritage
1 participants
Race/Ethnicity, Customized
Asian - East Asian Heritage
1 participants
Race/Ethnicity, Customized
Asian - South East Asian Heritage
3 participants
Race/Ethnicity, Customized
White - Arabic/North African Heritage
3 participants
Race/Ethnicity, Customized
White - White/Caucasian/European Heritage (W/C/EH)
81 participants
Sex: Female, Male
Female
101 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
101 / 101
serious
Total, serious adverse events
15 / 101

Outcome results

Primary

Number of Participants With Pathologic Complete Response (pCR) in the Breast and Nodes

pCR was defined as no histologic evidence of invasive tumor cells in the surgical breast specimen, axillary nodes, or sentinel node identified after neoadjuvant chemotherapy.

Time frame: From the start of the study until the time of surgery (average of 221.9 days [standard deviation of 23.65 days] after study entry)

Population: Evaluable Population: all participants who entered the study and received at least one dose of pazopanib.

ArmMeasureValue (NUMBER)
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibNumber of Participants With Pathologic Complete Response (pCR) in the Breast and Nodes16 Participants
95% CI: [10.64, 27.55]
Secondary

Invasive Recurrence-free Interval (IRFI)

IRFI was assessed as the time from study entry until the diagnosis of the first invasive local (evidence of invasive/in situ breast cancer \[except LCIS\] in the ipsilateral breast \[IB\]/skin of the breast), regional (development of tumor in the ipsilateral \[IP\] internal mammary, IP supraclavicular, IP infraclavicular, and/or IP axillary nodes, as well as the soft tissue of the IP axilla, following surgery), or distant (evidence of tumor in all areas, with the exception of those described for local and regional recurrence) breast cancer recurrence during the 24 months after study entry.

Time frame: up to 24 months after study entry

Population: Evaulable Population. Participants with recurrence before study entry were excluded from analysis.

ArmMeasureValue (MEDIAN)
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibInvasive Recurrence-free Interval (IRFI)NA months
Secondary

Number of Participants With Cardiac Toxicity (Per Common Terminology Criteria for Adverse Events Version 3) at the Completion of the AC Period

The number of participants with cardiac toxicity was defined as those who had cardiac events of Grades (G) 3 and 4 leftventricular dysfunction (LVD) (CTCAE Version 3.0) and/or who had definite or probable cardiac death. Grade refers to the severity of the AE: G 1, mild AE; G 2, moderate AE; G 3, severe AE; G 4, life-threatening/disabling AE; G 5, death related to the AE. A G3 LVD event is defined as symptomatic congestive heart failure (CHF) responsive to intervention. A G4 event is defined as poorly controlled refractory CHF; ventricular assist device or heart transplant indicated.

Time frame: From the start of the study until the preoperative evaluation (an average of 86.2 days [standard deviation of 5.76 days] after study entry)

Population: Treated Population: all participants who entered the study and received at least one dose of any study medication

ArmMeasureValue (NUMBER)
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibNumber of Participants With Cardiac Toxicity (Per Common Terminology Criteria for Adverse Events Version 3) at the Completion of the AC Period0 Participants
Secondary

Number of Participants With Cardiac Toxicity (Per CTCAE Version 3.0) During the Postoperative Pazopanib Period

The number of participants with cardiac toxicity was defined as those who had cardiac events of Grades (G) 3 and 4 leftventricular dysfunction (LVD) (CTCAE Version 3.0) and/or who had definite or probable cardiac death. Grade refers to the severity of the AE: G 1, mild AE; G 2, moderate AE; G 3, severe AE; G 4, life-threatening/disabling AE; G 5, death related to the AE. A G3 LVD event is defined as symptomatic congestive heart failure (CHF) responsive to intervention. A G4 event is defined as poorly controlled refractory CHF; ventricular assist device or heart transplant indicated.

Time frame: From the start of the study until the end of the postoperative pazopanib period, which coincides with the start of the end of treatment period (an average of 310.8 days [standard deviation of 85.29 days] after study entry)

Population: Treated Population: Only those members of the Treated Population who started the postoperative pazopanib period were assessed.

ArmMeasureValue (NUMBER)
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibNumber of Participants With Cardiac Toxicity (Per CTCAE Version 3.0) During the Postoperative Pazopanib Period0 Participants
Secondary

Number of Participants With Cardiac Toxicity (Per CTCAE Version 3) at the Completion of the AC and Weekly Paclitaxel (WP) + Pazopanib Preoperative Periods

The number of participants with cardiac toxicity was defined as those who had cardiac events of Grades (G) 3 and 4 leftventricular dysfunction (LVD) (CTCAE Version 3.0) and/or who had definite or probable cardiac death. Grade refers to the severity of the AE: G 1, mild AE; G 2, moderate AE; G 3, severe AE; G 4, life-threatening/disabling AE; G 5, death related to the AE. A G3 LVD event is defined as symptomatic congestive heart failure (CHF) responsive to intervention. A G4 event is defined as poorly controlled refractory CHF; ventricular assist device or heart transplant indicated.

Time frame: From the start of the study until the preoperative evaluation (an average of 203.0 days [standard deviation of 23.19 days] after study entry).

Population: Treated Population

ArmMeasureValue (NUMBER)
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibNumber of Participants With Cardiac Toxicity (Per CTCAE Version 3) at the Completion of the AC and Weekly Paclitaxel (WP) + Pazopanib Preoperative Periods0 Participants
Secondary

Number of Participants With Clinical Complete Response (cCR) in the Breast and Nodes at the Completion of the Doxorubicin and Cyclophosphamide (AC) Period

cCR was determined by tumor assessments performed by palpation. All clinical response assessments were to be performed by physical examination of the breast and the axilla. cCR was defined as the resolution of all target and non-target lesions identified at Baseline and no new lesions or other signs of disease progression. The criteria to be used for the determination of progressive disease were at the investigator's discretion.

Time frame: From the start of the study until an average of 86.2 days (standard deviation of 5.76 days) after study entry

Population: Evaluable Population

ArmMeasureValue (NUMBER)
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibNumber of Participants With Clinical Complete Response (cCR) in the Breast and Nodes at the Completion of the Doxorubicin and Cyclophosphamide (AC) Period22 Participants
Secondary

Number of Participants With Clinical CR (cCR) in the Breast and Nodes at the Completion of the AC and Weekly Paclitaxel (WP) + Pazopanib Preoperative Periods

cCR was determined by tumor assessments performed by palpation. All clinical response assessments were to be performed by physical examination of the breast and the axilla. cCR was defined as the resolution of all target and non-target lesions identified at Baseline and no new lesions or other signs of disease progression. The criteria to be used for the determination of progressive disease were at the investigator's discretion.

Time frame: From the start of the study until the preoperative evaluation (an average of 203.0 days [standard deviation of 23.19 days] after study entry)

Population: Evaluable Population

ArmMeasureValue (NUMBER)
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibNumber of Participants With Clinical CR (cCR) in the Breast and Nodes at the Completion of the AC and Weekly Paclitaxel (WP) + Pazopanib Preoperative Periods39 Participants
Secondary

Number of Participants With Pathologic Complete Response (pCR) in the Breast

pCR was defined as no histologic evidence of invasive tumor cells in the surgical breast specimen.

Time frame: From the start of the study until the time of surgery (average of 221.9 [standard deviation of 23.65 days] days after study entry)

Population: Evaluable Population

ArmMeasureValue (NUMBER)
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibNumber of Participants With Pathologic Complete Response (pCR) in the Breast18 Participants
Secondary

Number of Participants With Recurrence Events

The number of participants with recurrence events during the 24 months after study entry are reported. A recurrence event is defined as invasive local (evidence of invasive/in situ breast cancer \[except LCIS\] in the ipsilateral breast \[IB\]/skin of the breast), regional (development of tumor in the ipsilateral \[IP\] internal mammary, IP supraclavicular, IP infraclavicular, and/or IP axillary nodes, as well as the soft tissue of the IP axilla, following surgery), or distant (evidence of tumor in all areas, with the exception of those described for local and regional recurrence) breast cancer recurrence during the 24 months after study entry.

Time frame: up to 24 months after study entry

Population: Evaulable Population, excluding participants with recurrence before study entry

ArmMeasureValue (NUMBER)
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibNumber of Participants With Recurrence Events15 participants
Secondary

Number of Participants With the Indicated Radiotherapy-related Complications

Time frame: up to 24 months after study entry

Population: Treated Population

ArmMeasureGroupValue (NUMBER)
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibNumber of Participants With the Indicated Radiotherapy-related ComplicationsRash57 participants
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibNumber of Participants With the Indicated Radiotherapy-related ComplicationsPneumonitis1 participants
Secondary

Participants With Normal Thyroid Stimulating Hormone (TSH) Levels at Baseline Who Had an Elevated TSH Level at Least Once During the Study and During the Individual Study Periods

The number of participants with normal thyroid function at Baseline who had an elevation in TSH during the study were recorded. TSH elevation was derived based on local laboratory ranges.

Time frame: up to 24 months after study entry

Population: Treated Population. Data are presented for only those participants who remained in the study during the indicated period and had their blood drawn for assessment.

ArmMeasureGroupValue (NUMBER)
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibParticipants With Normal Thyroid Stimulating Hormone (TSH) Levels at Baseline Who Had an Elevated TSH Level at Least Once During the Study and During the Individual Study PeriodsElevated TSH at Least Once during the Study, n=10128 participants
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibParticipants With Normal Thyroid Stimulating Hormone (TSH) Levels at Baseline Who Had an Elevated TSH Level at Least Once During the Study and During the Individual Study PeriodsAC Period, n=912 participants
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibParticipants With Normal Thyroid Stimulating Hormone (TSH) Levels at Baseline Who Had an Elevated TSH Level at Least Once During the Study and During the Individual Study Periods(WP) + Pazopanib Preoperative Periods, n=8915 participants
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibParticipants With Normal Thyroid Stimulating Hormone (TSH) Levels at Baseline Who Had an Elevated TSH Level at Least Once During the Study and During the Individual Study PeriodsSurgery Period, n=781 participants
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibParticipants With Normal Thyroid Stimulating Hormone (TSH) Levels at Baseline Who Had an Elevated TSH Level at Least Once During the Study and During the Individual Study PeriodsPostoperative Pazopanib Period, n=367 participants
AC, Followed by Weekly Paclitaxel and Concurrent PazopanibParticipants With Normal Thyroid Stimulating Hormone (TSH) Levels at Baseline Who Had an Elevated TSH Level at Least Once During the Study and During the Individual Study PeriodsFollow-up Period, n=338 participants

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