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Paclitaxel, Trastuzumab, and Pertuzumab in the Treatment of Metastatic HER2-Positive Breast Cancer

Paclitaxel, Trastuzumab, and Pertuzumab in the Treatment of Metastatic HER2-Positive Breast Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01276041
Enrollment
70
Registered
2011-01-13
Start date
2011-01-05
Completion date
2019-08-07
Last updated
2020-08-03

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

Conditions

Breast Cancer

Keywords

MAB 2C4 (PERTUZUMAB), MAB HER 2 (HERCEPTIN) (TRASTUZUMAB), TAXOL (PACLITAXEL), 10-142, Stage IV HER2 (+) breast cancer

Brief summary

The purpose of this study is to see if a combination of drugs can help to treat this type of cancer. One drug is a chemotherapy agent called paclitaxel (Taxol®). Paclitaxel will be given every week through the vein. Although the weekly schedule of paclitaxel is not included in the label, the schedule and dose of weekly paclitaxel have been studied and have been proven to be more effective than an old standard schedule. The other two work against HER2. One is called trastuzumab (Herceptin®) and it is commonly given to women with early HER2 positive breast cancer or with advanced HER2 positive breast cancer that has spread to other parts of the body. Trastuzumab will be given through the vein every 3 weeks (or every week at the doctor's discretion). The third drug, pertuzumab, is an investigational drug. It has not been approved by the Food and Drug Administration. It has been given in studies to over 800 people. It has been effective in treating HER2 positive breast cancer. Pertuzumab will be given every 3 weeks through the vein. This study is looking at the effectiveness of these three drugs together.

Interventions

DRUGpertuzumab in combination with trastuzumab and paclitaxel

The regimen will consist of paclitaxel (80 mg/m2) weekly + trastuzumab every 3 weeks (8 mg/kg loading dose → 6 mg/kg every 3 weeks) + pertuzumab every 3 weeks (840 mg as a loading dose → 420 mg), all given intravenously (IV). Patients may be given trastuzumab weekly in lieu of every 3 weeks (4 mg/kg loading dose → 2 mg/kg every 3 weeks). Patients will be on treatment until progression of disease.

Sponsors

Genentech, Inc.
CollaboratorINDUSTRY
University of Pennsylvania
CollaboratorOTHER
Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Age ≥18 * Stage IV HER2 (+) breast cancer. * Histologically documented HER2 (+) breast cancer as defined as IHC 3+ or FISH amplification of ≥ 2.0 of primary or metastatic site; results from the local lab are acceptable. (Optional tumor sample collection from primary or metastatic site may be obtained for HER2 testing at MSKCC). * ECOG performance 0 -1 (Appendix A) * 0-1 prior treatment in the metastatic setting (ie: hormone, chemotherapy, biologic, targeted agents). Prior anthracycline, paclitaxel, and trastuzumab in the adjuvant setting are allowed. If the patient has one trastuzumab-based treatment in the metastatic setting and is given a break (even intermittently) from the partner drug given with trastuzumab and is continued on trastuzumab alone, this would still be considered as one treatment. For example, if the patient was given paclitaxel + trastuzumab and was later continued on trastuzumab alone or then restarted on paclitaxel + trastuzumab (at the physician's discretion for any reason), the regimen paclitaxel + trastuzumab followed by trastuzumab alone (or followed by paclitaxel + trastuzumab again) may be considered as one treatment. * Measurable or non-measurable disease. Measurable lesions are defined as those that can be measured accurately in at least one diameter, that is 20 mm using conventional imaging techniques (including incremental CT) or 10 mm using spiral CT equipment and a lymph node 15 mm along the short axis. Non-measurable lesions are all other lesions, including small lesions (longest diameter \<10mm pathological a lymph nodes with 10 to less than 15mm along the short axis, bony metastases, leptomeningeal disease, ascites, pleural/pericardial effusions, inflammatory breast cancer, lymphangitis carcinomatosis, and heavily calcified and cystic/necrotic lesions. * LVEF ≥ 50% * Hematologic parameters: white blood cell (WBC) count of ≥ 3000/ul, absolute neutrophil count (ANC) ≥1500/ul, platelets ≥ 100,000/ul, hemoglobin ≥ 10.0 g/dl * Non-hematologic parameters: bilirubin ≤ 1.5 mg/dl, AST/ALT ≤ 2.5 x upper limit of normal (ULN), alkaline phosphatase ≤ 5 x ULN. * Creatinine ≤ 1.5 mg/dl * Patients with stable and treated brain lesions of a duration of ≥ 2 months may be enrolled.

Exclusion criteria

* History of prior cardiac morbidities within 12 months (unstable angina, myocardial infarction, CHF, uncontrolled ventricular arrhythmias) * Prior pertuzumab * History of prior ≥ G 3 hypersensitivity (HSR) or any toxicity to trastuzumab that warranted permanent cessation of this antibody * History of prior ≥ G 3 HSR or any toxicity to paclitaxel warranted permanent cessation of this chemotherapy * \> G 2 peripheral neuropathy * Patients with a history of chronic hepatitis B or C should be excluded from the study as paclitaxel is potentially hepatotoxic * Pregnant patients

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Patients Who Are Progression Free at 6 Months or Later.6 monthsPatients who are considered progression-free at 6 months are deemed successes. Failures are those patients who progressed before the 6 month mark. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0), 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

Secondary

MeasureTime frameDescription
Number of Participants by Response Rate Using the RECIST Criteria (Version 1.1)every 4th cycle CT of chest and abdomen +/- pelvis up to 24 monthsExtent of disease evaluation will consist of a CT of chest and abdomen +/- pelvis. Bone scan and PET are optional. Every 4th cycle, this can be done within +/- 2 weeks. Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) 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.,
Number of Participants Evaluated for Cardiac Safetybaseline and every 4th cycle of treatment up to 24 monthsWe will also assess the LVEF at baseline and after every 4th cycle of treatment with an ECHO with a strain imaging analysis. When an ECHO cannot be done, a MUGA scan may be done.Patients who have surpassed the 6 month period may complete ECHO with strain imaging analysis or MUGA every 6 months +/- 1 month starting from the most recent ECHO scan date. This study will use the NCI Common Toxicity Criteria (CTC) AE version 4.0 for toxicity.
Number of Participants Evaluated With Toxicity2 yearsThis study will use the NCI Common Toxicity Criteria (CTC) AE version 4.0 for toxicity.

Countries

United States

Participant flow

Participants by arm

ArmCount
Pertuzumab in Combination With Trastuzumab and Paclitaxel
This is a phase II study of pertuzumab in combination with trastuzumab and paclitaxel for the treatment of patients with Stage IV HER2 (+) breast cancer.
70
Total70

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event2
Overall StudyProtocol Violation1

Baseline characteristics

CharacteristicPertuzumab in Combination With Trastuzumab and Paclitaxel
Age, Continuous52 years
Ethnicity (NIH/OMB)
Hispanic or Latino
8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
62 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
9 Participants
Race (NIH/OMB)
Black or African American
15 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
Race (NIH/OMB)
White
43 Participants
Region of Enrollment
United States
70 Participants
Sex: Female, Male
Female
70 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
36 / 70
other
Total, other adverse events
67 / 70
serious
Total, serious adverse events
18 / 70

Outcome results

Primary

Percentage of Patients Who Are Progression Free at 6 Months or Later.

Patients who are considered progression-free at 6 months are deemed successes. Failures are those patients who progressed before the 6 month mark. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0), 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: 6 months

ArmMeasureValue (NUMBER)
Pertuzumab in Combination With Trastuzumab and PaclitaxelPercentage of Patients Who Are Progression Free at 6 Months or Later.86 percentage of partcipants
Secondary

Number of Participants by Response Rate Using the RECIST Criteria (Version 1.1)

Extent of disease evaluation will consist of a CT of chest and abdomen +/- pelvis. Bone scan and PET are optional. Every 4th cycle, this can be done within +/- 2 weeks. Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) 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: every 4th cycle CT of chest and abdomen +/- pelvis up to 24 months

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Pertuzumab in Combination With Trastuzumab and PaclitaxelNumber of Participants by Response Rate Using the RECIST Criteria (Version 1.1)Complete Response15 Participants
Pertuzumab in Combination With Trastuzumab and PaclitaxelNumber of Participants by Response Rate Using the RECIST Criteria (Version 1.1)Partial Response27 Participants
Pertuzumab in Combination With Trastuzumab and PaclitaxelNumber of Participants by Response Rate Using the RECIST Criteria (Version 1.1)Stable Disease17 Participants
Pertuzumab in Combination With Trastuzumab and PaclitaxelNumber of Participants by Response Rate Using the RECIST Criteria (Version 1.1)Progression of Disease1 Participants
Pertuzumab in Combination With Trastuzumab and PaclitaxelNumber of Participants by Response Rate Using the RECIST Criteria (Version 1.1)Not Evaulable10 Participants
Secondary

Number of Participants Evaluated for Cardiac Safety

We will also assess the LVEF at baseline and after every 4th cycle of treatment with an ECHO with a strain imaging analysis. When an ECHO cannot be done, a MUGA scan may be done.Patients who have surpassed the 6 month period may complete ECHO with strain imaging analysis or MUGA every 6 months +/- 1 month starting from the most recent ECHO scan date. This study will use the NCI Common Toxicity Criteria (CTC) AE version 4.0 for toxicity.

Time frame: baseline and every 4th cycle of treatment up to 24 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Pertuzumab in Combination With Trastuzumab and PaclitaxelNumber of Participants Evaluated for Cardiac Safety70 Participants
Secondary

Number of Participants Evaluated With Toxicity

This study will use the NCI Common Toxicity Criteria (CTC) AE version 4.0 for toxicity.

Time frame: 2 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Pertuzumab in Combination With Trastuzumab and PaclitaxelNumber of Participants Evaluated With Toxicity70 Participants

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