Cyclophosphamide, Paclitaxel, and Trastuzumab in Treating Stage I-II HER2/Neu Positive Breast Cancer After Surgery

July 2, 2026 updated by: University of Nebraska

A Phase II Study of Adjuvant Therapy Using a Regimen of Cyclophosphamide, Paclitaxel With Trastuzumab in Stage I-II HER2/Neu Positive Breast Cancer Patients

This phase II trial studies the side effects and how well cyclophosphamide, paclitaxel, and trastuzumab work when given after surgery in treating patients with stage I-II human epidermal growth factor receptor (HER2/neu) positive breast cancer (confined to the breast or the breast and lymph nodes under the arm). Drugs used in chemotherapy, such as cyclophosphamide and paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Monoclonal antibodies, such as trastuzumab, may interfere with the ability of tumor cells to grow and spread. Giving cyclophosphamide, paclitaxel, and trastuzumab after surgery may help prevent the cancer from coming back.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

PRIMARY OBJECTIVES:

I. To determine the toxicities and ability to complete the planned treatment of a dose-dense regimen of cyclophosphamide and paclitaxel with trastuzumab in subjects with newly diagnosed stage I-II HER2/neu positive breast cancer.

II. To estimate recurrence free survival of a dose-dense regimen of cyclophosphamide and paclitaxel with trastuzumab in subjects with newly diagnosed stage I-II HER2/neu positive breast cancer.

OUTLINE:

SYSTEMIC THERAPY: Patients receive cyclophosphamide intravenously (IV) over 1 hour, paclitaxel IV over 3 hours, and trastuzumab IV over 30-90 minutes on day 1. Treatment repeats every 14 days for 6 courses in the absence of disease progression or unacceptable toxicity.

MAINTENANCE TRASTUZUMAB THERAPY: Beginning in course 6, patients receive trastuzumab IV over 30-60 minutes on day 1. Treatment repeats every 21 days for up to 52 weeks in the absence of disease progression or unacceptable toxicity.

Patients may undergo radiation therapy at the discretion of the radiation oncologist and medical oncologist and patients with estrogen/progesterone receptor positive tumors receive hormonal therapy as determined by the medical oncologist per standard National Comprehensive Care Network (NCCN) guidelines.

After completion of study treatment, patients are followed up every 3 months for 2 years.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
20

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Nebraska
      • Norfolk, Nebraska, United States, 68701
        • Faith Regional Health Services Carson Cancer Center
      • Omaha, Nebraska, United States, 68198
        • University of Nebraska Medical Center
      • Omaha, Nebraska, United States, 68118
        • Nebraska Medicine-Village Pointe

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

20 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Histologically confirmed newly diagnosed stage I-II HER2/neu positive breast cancer
  • Women of reproductive potential must be non-pregnant and non-nursing and must agree to employ an effective barrier method of birth control throughout the study and for up to 6 months following treatment
  • Women of child-bearing potential must have a negative pregnancy test within 7 days of initiating study (no childbearing potential is defined as age 55 years or older and no menses for two years or any age with surgical removal of the uterus and/or both ovaries)
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
  • Within 30 days prior to enrollment: Absolute neutrophil count greater than or equal to 1,500/mcl
  • Within 30 days prior to enrollment: Platelet count equal to or greater than 150,000/mcl
  • Within 30 days prior to enrollment: Hemoglobin > 11 gm/dl
  • Within 30 days prior to enrollment: Alkaline phosphatase equal or less than 1.5 times the upper limit of normal (ULN)
  • Within 30 days prior to enrollment: Total bilirubin equal to or less than 1.5 times the ULN
  • Within 30 days prior to enrollment: Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) no greater than 1.5 times the ULN
  • Within 30 days prior to enrollment: Creatinine less than 1.5 times the ULN
  • Able to give informed consent
  • All included subjects must have normal cardiac function as defined by an ejection fraction of > 50% by echocardiogram
  • Able to return for treatment and follow-up on the specified days

Exclusion Criteria:

  • Prior malignancy; except for adequately treated basal cell or squamous cell skin cancer or noninvasive carcinomas
  • Subjects with pre-existing grade II peripheral neuropathy
  • History of previous chemotherapy
  • Stage IV or metastatic breast cancer
  • Pregnant or nursing women
  • Inability to cooperate with treatment protocol
  • No active serious infections or other conditions precluding chemotherapy
  • Any comorbidity or condition which, in the opinion of the investigator, may interfere with the assessments and procedures of this protocol e.g. unstable angina, myocardial infarction within 6 months, severe infection, etc.
  • Known hypersensitivity to any component of required drugs in the study
  • Known positive for human immunodeficiency virus (HIV) or infectious hepatitis, type A, B or C or active hepatitis
  • Any serious medical condition, laboratory abnormality, or psychiatric illness that would prevent the subject from signing the informed consent form
  • Myocardial infarction within 6 months prior to enrollment or has New York Heart Association (NYHA) class III or IV heart failure uncontrolled angina, severe uncontrolled ventricular arrhythmias, or electrocardiographic evidence of acute ischemia or active conduction system abnormalities; prior to study entry, any electrocardiographic (ECG) abnormality at screening has to be documented by the investigator as not medically relevant

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Treatment (cyclophosphamide, paclitaxel, trastuzumab)

SYSTEMIC THERAPY: Patients receive cyclophosphamide IV over 1 hour, paclitaxel IV over 3 hours, and trastuzumab IV over 30-90 minutes on day 1. Treatment repeats every 14 days for 6 courses in the absence of disease progression or unacceptable toxicity.

MAINTENANCE TRASTUZUMAB THERAPY: Beginning in course 6, patients receive trastuzumab IV over 30-60 minutes on day 1. Treatment repeats every 21 days for up to 52 weeks in the absence of disease progression or unacceptable toxicity.

Patients may undergo radiation therapy at the discretion of the radiation oncologist and medical oncologist and patients with estrogen/progesterone receptor positive tumors receive hormonal therapy as determined by the medical oncologist per standard NCCN guidelines.
Other: Laboratory Biomarker Analysis
Correlative studies
Biological: Trastuzumab
Given IV
Other Names:
  • Herceptin
  • ABP 980
  • Anti-c-ERB-2
  • Anti-c-erbB2 Monoclonal Antibody
  • Anti-ERB-2
  • Anti-erbB-2
  • Anti-erbB2 Monoclonal Antibody
  • Anti-HER2/c-erbB2 Monoclonal Antibody
  • Anti-p185-HER2
  • c-erb-2 Monoclonal Antibody
  • HER2 Monoclonal Antibody
  • Herceptin Biosimilar PF-05280014
  • Herceptin Trastuzumab Biosimilar PF-05280014
  • MoAb HER2
  • Monoclonal Antibody c-erb-2
  • Monoclonal Antibody HER2
  • Ogivri
  • PF-05280014
  • rhuMAb HER2
  • RO0452317
  • Trastuzumab Biosimilar ABP 980
  • Trastuzumab Biosimilar PF-05280014
  • Trastuzumab-dkst
Drug: Paclitaxel
Given IV
Other Names:
  • Taxol
  • Anzatax
  • Asotax
  • Bristaxol
  • Praxel
  • Taxol Konzentrat
Drug: Cyclophosphamide
Given IV
Other Names:
  • Cytoxan
  • CTX
  • (-)-Cyclophosphamide
  • 2H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide, monohydrate
  • Carloxan
  • Ciclofosfamida
  • Ciclofosfamide
  • Cicloxal
  • Clafen
  • Claphene
  • CP monohydrate
  • CYCLO-cell
  • Cycloblastin
  • Cycloblastine
  • Cyclophospham
  • Cyclophosphamid monohydrate
  • Cyclophosphamidum
  • Cyclophosphan
  • Cyclophosphane
  • Cyclophosphanum
  • Cyclostin
  • Cyclostine
  • Cytophosphan
  • Cytophosphane
  • Fosfaseron
  • Genoxal
  • Genuxal
  • Ledoxina
  • Mitoxan
  • Neosar
  • Revimmune
  • Syklofosfamid
  • WR- 138719

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of Participants With Grade 3/4 Nausea/Vomiting, Graded According to the NCI CTCAE v4.03
Time Frame: From initiation of study treatment through completion of therapy and up to 3 months after the final dose of study treatment (including trastuzumab).
Participants that experienced grade 3/4 nausea/vomiting with this regimen when compared to standard regimens.
From initiation of study treatment through completion of therapy and up to 3 months after the final dose of study treatment (including trastuzumab).
Number of Participants With Recurrence Free Survival (RFS)
Time Frame: First date of therapy until the first notation of clinical progression, relapse or death from any cause, assessed at 2 years
RFS and survival curves will be plotted following the method of Kaplan and Meier using the full analysis set.
First date of therapy until the first notation of clinical progression, relapse or death from any cause, assessed at 2 years
Number of Participants With Inability to Complete Treatment, Defined as a Patient That Requires a Lower Dose of Therapy (Defined as Dose Lowered by 50%), or a Postponement of Scheduled Treatment of Longer Than 28 Days, or Discontinuation for Any Reason
Time Frame: Up to 2 years
Number of participants with inability to complete treatment, defined as a patient that requires a lower dose of therapy (defined as dose lowered by 50%), or a postponement of scheduled treatment of longer than 28 days, or discontinuation of treatment for any reason. will be described using frequencies and proportions and 90% confidence intervals.
Up to 2 years
Number of Participants With Neutropenia
Time Frame: From initiation of study treatment through completion of therapy and up to 3 months after the final dose of study treatment (including trastuzumab).
Number of participants who experienced treatment-emergent neutropenia graded according to National Cancer Institute (NCI) Common Terminology Criteria of Adverse Events (CTCAE) v4.03.
From initiation of study treatment through completion of therapy and up to 3 months after the final dose of study treatment (including trastuzumab).
Number of Participants With Paclitaxel-related Neuropathy
Time Frame: From initiation of study treatment through completion of therapy and up to 3 months after the final dose of study treatment (including trastuzumab).
Number of Participants who experienced paclitaxel-related neuropathy graded according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) v4.03.
From initiation of study treatment through completion of therapy and up to 3 months after the final dose of study treatment (including trastuzumab).
Number of Participants With Cardiotoxicity Grade 3/4 Cardiotoxicity, Graded According to the NCI CTCAE v4.03
Time Frame: From initiation of study treatment through completion of therapy and up to 3 months after the final dose of study treatment (including trastuzumab).
Number of Participants who experienced grade 3/4 cardiotoxicity with standard treatment, graded according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) v4.03.
From initiation of study treatment through completion of therapy and up to 3 months after the final dose of study treatment (including trastuzumab).

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Nebraska

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Cancer Institute (NCI)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Amulya Yellala, MD, University of Nebraska

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 11, 2015

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 8, 2025

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 8, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 11, 2016

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 11, 2016

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 13, 2016

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 30, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 2, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 0318-15-FB
  • P30CA036727 (U.S. NIH Grant/Contract)
  • NCI-2015-01879 (Registry Identifier: CTRP (Clinical Trial Reporting Program))

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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