TAC Versus TCX as Adjuvant Treatment for High-risk Her2-Negative Breast Cancer

June 11, 2025 updated by: Peking Union Medical College Hospital

A Randomized, Phase III Study Comparing TAC (Docetaxel, Doxorubicin, Cyclophosphamide) With TCX ( Docetaxel, Cyclophosphamide, Capecitabine) as Adjuvant Treatment for High-risk Her2-Negative Breast Cancer

Some sub-analysis has shown anthracycline-based regimens are not effective in Her-2 negative breast cancer, while capecitabine is more effective in this group of patients.

This is a prospective, randomised phase III trial, to compare the efficacy and safety profiles of two types of adjuvant chemotherapy regimens for HER2 negative, node positive or node-negative high-risk breast cancer patients.

Control Arm: This includes 6 cycles of TAC 75/50/500 mg/m2 day 1 every 3 weeks. Experimental Arm: This includes 6 cycles of TC 75/500 mg/m2, day 1 every 3 weeks, concurrently with capecitabine 950 mg/m2, twice a day, via oral intake, for 14 days, and then a one-week rest period.

Women with hormone receptor positive tumours must receive 5 years endocrine after the end of chemotherapy.

Patients may receive radiotherapy when clinically indicated.

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.

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.
204

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 3

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

  • Name: Songjie Shen, Doctor
  • Phone Number: 86-010-88068936
  • Email: pumcssj@163.com

Study Locations

  • China
    • Beijing
      • Beijing, Beijing, China, 100730
        • Peking Union Medical College Hospital

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

14 years to 66 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Written informed consent.
  • Histological diagnosis of operable invasive adenocarcinoma of the breast (T1-T3). Tumours must be HER2 negative. Time window between surgery and study randomization must be less than 60 days.
  • Surgery must consist of mastectomy or conservative surgery with axillary lymph node dissection. Margins free of disease and ductal carcinomas in situ (DCIS) are required. Lobular carcinoma is not considered a positive margin.
  • Positive axillary lymph nodes defined as at least 1 out of 10 nodes with presence of disease. If sentinel node technique is used, sentinel node can be the only node affected.
  • Node-negative high-risk breast cancer was defined as tumors with a size ≥ 2 cm, fulfilling at least one of the following criteria: histological grade 3, estrogen receptor (ER)-negative and progesterone receptor (PR)-negative, or a Ki67 proliferation index ≥ 14%.
  • Status of hormone receptors in primary tumour. Results must be available before the end of adjuvant chemotherapy.
  • Patients must not present evidence of metastatic disease. Status of HER2 in primary tumour, known before randomization. Patients with immune histochemistry (IHC) 0 or +1 are eligible. For patients with ICH 2+, fluorescence in situ hybridization (FISH) is mandatory and result must be negative.
  • Age >= 18 and <= 70 years old.
  • Performance status (Karnofsky index) >= 70.
  • Normal electrocardiogram (EKG) in the 12 weeks prior to randomization. If needed, normal cardiac function must be confirmed by left ventricular ejection fraction (LVEF).

  • Laboratory results (within 14 days prior to randomization):

    • Hematology: neutrophils >= 1.5 x 10^9/l; platelets >= 100 x 10^9/l; hemoglobin >= 10 mg/dl;
    • Hepatic function: total bilirubin <= 1 upper normal limit (UNL); SGOT and SGPT <= 2.5 UNL; alkaline phosphatase <= 2.5 UNL. If values of SGOT and SGPT > 1.5 UNL are associated to alkaline phosphatase > 2.5 UNL, patient is not eligible;
    • Renal function: creatinine <= 175 mmol/l (2 mg/dl); creatinine clearance >= 60 ml/min;
  • Complete stage workup during the 12 weeks prior to randomization (mammograms are allowed within a 20 week window). All patients must have a bilateral mammogram, thorax x-ray, abdominal echography and/or computed tomography (CT)-scan. If bone pain, and/or alkaline phosphatase elevation, a bone scintigraphy is mandatory. This test is recommended for all patients. Other tests: as clinically indicated.
  • Patients able to comply with treatment and study follow-up.
  • Negative pregnancy test done in the 14 prior days to randomization.

Exclusion Criteria:

  • Prior systemic therapy for breast cancer.
  • Prior therapy with anthracyclines or taxanes (paclitaxel or docetaxel) for any malignancy.
  • Prior radiotherapy for breast cancer.
  • Bilateral invasive breast cancer.
  • Pregnant or lactating women. Adequate contraceptive methods must be used during chemotherapy and hormone therapy treatments.
  • Any T4 or M1 tumour.
  • HER2 positive breast cancer (IHC 3+ or positive FISH result).
  • Pre-existing grade >= 2 motor or sensorial neurotoxicity (National Cancer Institute Common Toxicity Criteria version 2.0 [NCI CTC v-2.0]).
  • Any other serious medical pathology, such as congestive heart failure; unstable angina; history of myocardial infarction during the previous year; uncontrolled HA or high risk arrhythmias.
  • History of neurological or psychiatric disorders, which could preclude the patients from free informed consent.
  • Active uncontrolled infection.
  • Active peptic ulcer; unstable diabetes mellitus.
  • Previous or current history of neoplasms different from breast cancer, except for skin carcinoma, cervical in situ carcinoma, or any other tumour curatively treated and without recurrence in the last 10 years; ductal in situ carcinoma in the same breast; lobular in situ carcinoma.
  • Chronic treatment with corticosteroids.
  • Contraindications for corticosteroid administration.
  • Concomitant treatment with raloxifene, tamoxifen or other selective estrogen receptor modulators (SERMs), either for osteoporosis treatment or for prevention. These treatments must stop before randomisation.
  • Concomitant treatment with other investigational products; participation in other clinical trials with a non-marketed drug in the 20 previous days before randomization.
  • Concomitant treatment with another therapy for cancer.
  • Males.

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: Randomized
  • Interventional Model: Parallel 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.
Active Comparator: TAC
docetaxel 75 mg/m², iv, day 1 doxorubicin 50 mg/m² or epirubicin 75mg/m², iv, day 1 Cyclophosphamide 500 mg/m², iv, day 1 every 3 weeks for 6 cycles
Drug: Docetaxel, Doxorubicin, Cyclophosphamide
docetaxel 75 mg/m², iv, day 1 doxorubicin 50 mg/m² or epirubicin 75mg/m², iv, day 1 Cyclophosphamide 500 mg/m², iv, day 1 every 3 weeks for 6 cycles
Experimental: TCX
docetaxel 75 mg/m², iv, day 1 Cyclophosphamide 500 mg/m², iv, day 1 capecitabine 950 mg/m2, twice a day, via oral intake, day 1 to day 14 every 3 weeks for 6 cycles
Drug: Docetaxel, Cyclophosphamide, Capecitabine
docetaxel 75 mg/m², iv, day 1 Cyclophosphamide 500 mg/m², iv, day 1 capecitabine 950 mg/m2, twice a day, via oral intake, day 1 to day 14 every 3 weeks for 6 cycles

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
disease-free survival
Time Frame: 10 years
the time from the date of surgery to locoregional or distant recurrence, second primary malignancy or death, whichever occurred first
10 years
overall survival
Time Frame: 10 years
the time from the date of surgery to the date of death from any cause
10 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
distant disease-free survival
Time Frame: 10 years
the time from randomization to distant recurrence of breast cancer
10 years
disease-specific survival
Time Frame: 10 years
the time from randomization to deaths caused by breast cancer
10 years
Adverse event rate (CTCAE v. 4.0)
Time Frame: 10 years
10 years

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.
Peking Union Medical College Hospital

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.
  • Study Chair: Qiang Sun, Master, PUMCH

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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.
May 1, 2011

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 1, 2023

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 1, 2023

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).
May 9, 2011

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.
May 13, 2011

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.
May 17, 2011

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.
June 15, 2025

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.
June 11, 2025

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.
January 1, 2014

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.
  • PUMCH-Breast-TCX

Drug and device information, study documents

Studies a U.S. FDA-regulated drug 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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