Skip to content

Pertuzumab, Trastuzumab, and Paclitaxel Albumin-Stabilized Nanoparticle Formulation in Treating Patients With HER2-Positive Advanced Breast Cancer

Phase II Prospective Open Label Study of Pertuzumab, Trastuzumab, and Nab-Paclitaxel in Patients With HER-2 Positive Advanced Breast Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01730833
Enrollment
63
Registered
2012-11-21
Start date
2013-07-17
Completion date
2026-04-20
Last updated
2026-06-16

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

Conditions

Breast Adenocarcinoma, HER2-positive Breast Cancer, Inflammatory Breast Carcinoma, Recurrent Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer

Brief summary

This phase II trial studies how well pertuzumab, trastuzumab, and paclitaxel albumin-stabilized nanoparticle formulation work in treating patients with human epidermal growth factor receptor (HER) 2-positive stage II-IV breast cancer. Monoclonal antibodies, such as pertuzumab and trastuzumab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Drugs used in chemotherapy, such as paclitaxel albumin-stabilized nanoparticle formulation, work in different ways to kill tumor cells or stop them from growing. Giving pertuzumab and trastuzumab together with paclitaxel albumin-stabilized nanoparticle formulation may be a better way to block tumor growth.

Detailed description

PRIMARY OBJECTIVES: I. To determine efficacy of administration of pertuzumab in combination with trastuzumab with nab-paclitaxel (paclitaxel albumin-stabilized nanoparticle formulation) in subjects with stage IV human epidermal growth factor receptor (HER)-2 overexpressing metastatic breast cancer (MBC) as measured by progression free survival (PFS). II. To determine the efficacy as neoadjuvant treatment of the regimen in HER2+ locally advanced breast cancer (LABC) as defined by pathologic complete response (pCR). SECONDARY OBJECTIVES: I. To evaluate the safety of pertuzumab when added to trastuzumab and nab-paclitaxel in HER-2 overexpressing MBC and LABC cancer as assessed by the frequency and severity of adverse events (AEs), abnormal findings on physical examination, laboratory tests, and vital signs. II. To evaluate the objective response rate (Response Evaluation Criteria in Solid Tumors \[RECIST\] 1.1) and duration of response in MBC. III. To evaluate the efficacy of the regimen by assessing tumor response including assessment of residual cancer burden (RCB) scores in LABC. IV. To assess the progression free survival (MBC), relapse-free survival (LABC) and overall survival in all patients. V. To perform exploratory circulatory gene, micro-ribonucleic acid (RNA), and exosome profiling as well as protein and glycomic profiling. VI. To assess the feasibility of molecular profiling in both primary and metastatic tumor samples. VII. To assess numerical and qualitative aspects of circulating tumor cells and circulating tumor-derived deoxyribonucleic acid (DNA). OUTLINE: Patients receive pertuzumab intravenously (IV) over 30-60 minutes on day 1, trastuzumab IV over 30-90 minutes and paclitaxel albumin-stabilized nanoparticle formulation IV over 30 minutes on days 1, 8, and 15. Treatment repeats every 21 days in the absence of disease progression or unacceptable toxicity (patients with MBC) or for 6 courses in the absence of disease progression or unacceptable toxicity (patients with LABC). After completion of study treatment, patients are followed up every 3 months for 4 years and then every 6 months for 1 year.

Interventions

BIOLOGICALpertuzumab

Given IV

BIOLOGICALtrastuzumab

Given IV

DRUGpaclitaxel albumin-stabilized nanoparticle formulation

Given IV

OTHERlaboratory biomarker analysis

Optional correlative studies

Sponsors

City of Hope Medical Center
Lead SponsorOTHER
National Cancer Institute (NCI)
CollaboratorNIH

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients must be diagnosed with metastatic cytologically or histologically confirmed adenocarcinoma of the breast with HER2 over-expression or with newly diagnosed locally advanced (including inflammatory) breast cancer (LABC) with stage II-III disease; patients with metastatic (stage IV) disease (MBC) must have measurable lesions * Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control or abstinence) prior to study entry and for six months following duration of study participation; should a woman become pregnant or suspect that she is pregnant while participating on the trial, she should inform her treating physician immediately * Tumor positive or negative for expression of hormone receptors (\< 1% or \> 1%) and overexpressing HER2 by immunohistochemistry (IHC) (3+), or, HER2-amplified by fluorescence in situ hybridization (FISH) or by alternative gene testing * For patients with LABC, no prior therapy is allowed * For patients with MBC, prior adjuvant chemotherapy and trastuzumab more than or equal to 12 months prior to enrollment are allowed * No prior chemotherapy or trastuzumab for treatment of metastatic breast cancer * Left ventricular ejection fraction (LVEF) \>= 50% (determined by echocardiogram or multigated acquisition scan) within 42 days of treatment * Eastern Cooperative Oncology Group performance status of 0 or 1 * Hemoglobin \>= 9 g/dl * Leukocytes \>= 3.0 x 10\^9/L * Absolute neutrophil count \>= 1.5 x 10\^9/L * Platelets \>= 100 x 10\^9/L * Total bilirubin =\< 1.3 mg/dl (institutional upper limit of normal) * Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase \[SGOT\])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase \[SGPT\]) =\< 2 x institutional upper limit of normal * Creatinine within normal institutional limits or creatinine clearance \> 50 mL/min/1.73 m\^2 for patients with creatinine levels above institutional normal (using Cockcroft-Gault formula) * All radiology studies (study requiring staging) must be performed within 35 days prior to the start of therapy * No serious medical conditions such as myocardial infarction within 6 months prior to entry, congestive heart failure, unstable ventricular arrhythmia, uncontrolled hypertension, uncontrolled diabetes mellitus, uncontrolled psychotic disorders, serious infections, active peptic ulcer disease, psychiatric illness, or any other medical conditions that might be aggravated by treatment or limit compliance * Currently, no active second malignancy other than non-melanoma skin cancer; note: patients are not considered to have a "current active" malignancy if they have completed anti-cancer therapy and are considered by their physicians to have a less than 30% chance of relapse * All patients must have the ability to understand and the willingness to sign an informed consent * Negative serum or urine beta-human chorionic gonadotropin (hCG) pregnancy test at screening for patients of child-bearing potential * No prior therapies (except for anti-estrogen therapy) are allowed for the treatment of the newly diagnosed metastatic breast cancer; patients are allowed to have had prior chemotherapy for breast cancer in the adjuvant setting for at least 12 months prior to enrollment into this study; patients with a prior diagnosis of malignancy treated \>= 5 years ago are eligible, provided that they have not received prior nab-paclitaxel as part of their prior treatment regimen, and that they meet all eligibility criteria

Exclusion criteria

* Known active hepatitis B or C * Known active human immunodeficiency virus (HIV) * Prior breast cancer or other invasive malignancy treated within 5 years * Pregnancy * Neuropathy \> grade 1 * Any other intercurrent medical/psychological problem deemed exclusionary by the treating physician or investigators/principal investigator (PI) * Cumulative dose of doxorubicin or equivalent of \> 360 mg/m\^2 during prior adjuvant therapy * LVEF \< 50% during previous trastuzumab therapy * Central nervous system metastases * Another malignancy excluding basal cell skin cancer * Pregnant women * Subjects will be excluded who, in the opinion of the investigator, may not be able to comply with the safety monitoring requirements of the study

Design outcomes

Primary

MeasureTime frameDescription
Progression Free Survival (MBC Cohort)assessed up to 5 yearsEstimated using the product-limit method of Kaplan and Meier. From time of initial treatment until disease progression or death. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.
Five Year Disease-free Survival (LABC Cohort)assessed up to 5 yearsEstimated using the method of Kaplan-Meier. Disease-free survival is defined as the time from Initial treatment to recurrence of tumor or death

Secondary

MeasureTime frameDescription
Overall Response (MBC Cohort)Up to 5 yearsPer Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by 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
Five Year Overall SurvivalAssessed up to 5 yearsEstimated by the Kaplan-Meier method. From the initial date of treatment to date of death from any cause.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORJoanne Mortimer, MD

City of Hope Medical Center

Participant flow

Participants by arm

ArmCount
Cohort1: Stage IV HER-2 Overexpressing Metastatic Breast Cancer (MBC) Patients
Pertuzumab administered as 840 mg IV during cycle 1 followed by 420 mg IV once every three weeks starting cycle 2. Trastuzumab loading dose of 4mg/kg IV for week one followed by 2mg/kg IV weekly. Nab-paclitaxel 100 mg/m2 IV weekly. Treatment is scheduled to continue until: Disease progression Unmanageable toxicity Primary physician or patient request to discontinue therapy Study termination by the sponsors
18
Cohort 2: HER2+ Locally Advanced Breast Cancer (LABC) Patients
Pertuzumab administered as 840 mg IV during cycle 1 followed by 420 mg IV once every three weeks starting cycle 2. Trastuzumab loading dose of 4mg/kg IV for week one followed by 2mg/kg IV weekly. Nab-paclitaxel 100 mg/m2 IV weekly. Treatment is scheduled to continue until: A planned 6 cycles Unmanageable toxicity Primary physician or patient request to discontinue therapy Study termination by the sponsors
45
Total63

Baseline characteristics

CharacteristicCohort 2: HER2+ Locally Advanced Breast Cancer (LABC) PatientsTotalCohort1: Stage IV HER-2 Overexpressing Metastatic Breast Cancer (MBC) Patients
Age, Continuous56 years54 years49 years
Race/Ethnicity, Customized
African American
1 Participants2 Participants1 Participants
Race/Ethnicity, Customized
Asian
7 Participants9 Participants2 Participants
Race/Ethnicity, Customized
Hispanic
19 Participants29 Participants10 Participants
Race/Ethnicity, Customized
Non-Hispanic White
17 Participants22 Participants5 Participants
Race/Ethnicity, Customized
Unknown
1 Participants1 Participants0 Participants
Region of Enrollment
United States
45 participants63 participants18 participants
Sex: Female, Male
Female
45 Participants63 Participants18 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
8 / 182 / 45
other
Total, other adverse events
18 / 1845 / 45
serious
Total, serious adverse events
3 / 184 / 45

Outcome results

Primary

Five Year Disease-free Survival (LABC Cohort)

Estimated using the method of Kaplan-Meier. Disease-free survival is defined as the time from Initial treatment to recurrence of tumor or death

Time frame: assessed up to 5 years

Population: Analysis population included LABC participants who achieved pathologic response (pCR). More appropriate PFS analysis for MBC cohort is presented elsewhere in these results.

ArmMeasureValue (NUMBER)
Cohort 2: HER2+ Locally Advanced Breast Cancer (LABC) PatientsFive Year Disease-free Survival (LABC Cohort)96.3 percentage of participants
Primary

Progression Free Survival (MBC Cohort)

Estimated using the product-limit method of Kaplan and Meier. From time of initial treatment until disease progression or death. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.

Time frame: assessed up to 5 years

Population: PFS was not performed on the LABC cohort (neoadjuvant patients). A more relevant analysis, Disease-free survival is present elsewhere in these results.

ArmMeasureValue (MEDIAN)
Cohort1: Stage IV HER-2 Overexpressing Metastatic Breast Cancer (MBC) PatientsProgression Free Survival (MBC Cohort)22.4 Months
Secondary

Five Year Overall Survival

Estimated by the Kaplan-Meier method. From the initial date of treatment to date of death from any cause.

Time frame: Assessed up to 5 years

ArmMeasureValue (NUMBER)
Cohort1: Stage IV HER-2 Overexpressing Metastatic Breast Cancer (MBC) PatientsFive Year Overall Survival54.5 percentage of participants
Cohort 2: HER2+ Locally Advanced Breast Cancer (LABC) PatientsFive Year Overall Survival94.1 percentage of participants
Secondary

Overall Response (MBC Cohort)

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by 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

Time frame: Up to 5 years

Population: Overall response is not appropriate in the neoadjuvant or LABC cohort.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort1: Stage IV HER-2 Overexpressing Metastatic Breast Cancer (MBC) PatientsOverall Response (MBC Cohort)13 Participants

Source: ClinicalTrials.gov · Data processed: Jun 17, 2026