Dose-Reduced Docetaxel With Cyclophosphamide for the Treatment of Vulnerable Older Women With Stage I-III HER2 Negative Breast Cancer, the DOROTHY Trial

Description

This phase II trial tests how well dose-reduced docetaxel combined with cyclophosphamide works in treating older women with early stage (stage I-III) HER2 negative breast cancer vulnerable to toxicity. Chemotherapy drugs, such as docetaxel and cyclophosphamide, 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. Docetaxel and cyclophosphamide are commonly used, but is not well tolerated at the standard dose and can affect the way older patients feel physically and emotionally. Giving dose-reduced docetaxel combined with cyclophosphamide may be an effective treatment option and improve quality of life in vulnerable older women with stage I-III HER2 negative breast cancer.

Conditions

Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, HER2-Negative Breast Carcinoma

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Study Overview

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Study Details

Study overview

This phase II trial tests how well dose-reduced docetaxel combined with cyclophosphamide works in treating older women with early stage (stage I-III) HER2 negative breast cancer vulnerable to toxicity. Chemotherapy drugs, such as docetaxel and cyclophosphamide, 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. Docetaxel and cyclophosphamide are commonly used, but is not well tolerated at the standard dose and can affect the way older patients feel physically and emotionally. Giving dose-reduced docetaxel combined with cyclophosphamide may be an effective treatment option and improve quality of life in vulnerable older women with stage I-III HER2 negative breast cancer.

Dose Reduction of Docetaxel-Based Chemotherapy in Vulnerable Older Women With Early-Stage Breast Cancer (DOROTHY)

Dose-Reduced Docetaxel With Cyclophosphamide for the Treatment of Vulnerable Older Women With Stage I-III HER2 Negative Breast Cancer, the DOROTHY Trial

Condition
Anatomic Stage I Breast Cancer AJCC v8
Intervention / Treatment

-

Contacts and Locations

Duarte

City of Hope Medical Center, Duarte, California, United States, 91010

Boston

Dana-Farber Cancer Institute, Boston, Massachusetts, United States, 02215

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.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • * Ability to provided informed consent or a legally authorized representative is able to consent on behalf of the patient
  • * Willing to answer questionnaires as part of their participation
  • * Age: \>= 65 years by the time of study registration
  • * Cancer and Aging Research Group- Breast Cancer (CARG-BC) score \>= 6
  • * Histologically or cytologically confirmed breast cancer(s) that is human epidermal growth factor receptor 2 negative (HER2-negative) per the most recent 2018 American Society of Clinical Oncology College of American Pathologists (ASCO CAP) guidelines relapsed/ refractory disease
  • * Estrogen receptor and progesterone receptor immunohistochemistry (IHC) status must be known; any estrogen receptor (ER)/progesterone receptor (PR) status is eligible
  • * Non-metastatic, invasive breast cancer (scans are not required to document non-metastatic disease- any staging work-up is up to the treating providers' discretion)
  • * Recommended to have either standard dose neoadjuvant docetaxel, cyclophosphamide (TC) chemotherapy or adjuvant TC chemotherapy per their treating provider. Participant may be on immunotherapy concurrently with the protocol regimen at the discretion of the treating physician
  • * Any surgery, nodal assessment, radiation, hormonal therapy is left up to the treating provider but should not occur concurrently with study therapy
  • * Any patient who received pre-operative hormonal therapy and who is then recommended for neo/adjuvant chemotherapy is eligible, though hormonal therapy should be held during study treatment administration
  • * For patients with bilateral or multifocal/multicentric breast cancers, the following criteria must be met to enroll: (1) both cancer are HER2 negative, AND (2) the provider feels the patient will benefit from TC for at least one of the cancers
  • * Patients who do not speak or read English are eligible as long as adequate interpreter services are available or the surveys are available in the preferred language (i.e. the Geriatric Assessment \[GA\] and Patient Reported Outcomes \[PRO\] surveys are available in many languages)
  • * Participants who have already received any chemotherapy for their current breast cancer
  • * Patients with recurrent and/or metastatic disease will be excluded. Prior diagnoses of breast cancers (including ductal carcinoma in situ \[DCIS\]) are allowed, provided that the treating provider feels that the current cancer most likely represents a new primary breast cancer and not recurrent disease
  • * History of allergic reactions attributed to compounds of similar chemical or biologic composition to cyclophosphamide and/or docetaxel
  • * Past treatment with the regimen TC for prior breast cancer

Ages Eligible for Study

65 Years to

Sexes Eligible for Study

ALL

Accepts Healthy Volunteers

No

Collaborators and Investigators

City of Hope Medical Center,

Thanh Nga E Doan, MD, PRINCIPAL_INVESTIGATOR, City of Hope Medical Center

Study Record Dates

2027-03-20