A Study of Cyclophosphamide, Methotrexate, Fluorouracil (CMF) for People With Breast Cancer

August 12, 2026 updated by: Memorial Sloan Kettering Cancer Center

STUDY OF DOSE DENSE CMF (Cyclophosphamide, Methotrexate, Fluorouracil) as an Alternative to AC (Doxorubicin, Cyclophosphamide) in 2 Regimens in EARLY STAGE BREAST CANCER for Patients Greater or Equal to 70

The purpose of this study is to find out if it is practical (feasible) to give dose-dense CMF (cyclophosphamide, methotrexate, and fluorouracil) in two standard chemotherapy regimens in people with breast cancer, age 70 and older.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

76

Phase

  • 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 Contact

Study Contact Backup

Study Locations

  • United States
    • New Jersey
      • Basking Ridge, New Jersey, United States, 07920
        • Recruiting
        • Memorial Sloan Kettering at Basking Ridge (Limited Protocol Activities)
        • Contact:
          • Pamela Drullinsky, MD
          • Phone Number: 516-559-1521
      • Middletown, New Jersey, United States, 07748
        • Recruiting
        • Memorial Sloan Kettering at Monmouth (Limited Protocol Activities)
        • Contact:
          • Pamela Drullinsky, MD
          • Phone Number: 516-559-1521
      • Montvale, New Jersey, United States, 07645
        • Recruiting
        • Memorial Sloan Kettering at Bergen (Limited Protocol Activities)
        • Contact:
          • Pamela Drullinsky, MD
          • Phone Number: 516-559-1521
    • New York
      • Commack, New York, United States, 11725
        • Recruiting
        • Memorial Sloan Kettering Suffolk-Commack (Limited Protocol Activities)
        • Contact:
          • Pamela Drullinsky, MD
          • Phone Number: 516-559-1521
      • Harrison, New York, United States, 10604
        • Recruiting
        • Memorial Sloan Kettering at Westchester (Limited Protocol Activities)
        • Contact:
          • Pamela Drullinsky, MD
          • Phone Number: 516-559-1521
      • New York, New York, United States, 10065
        • Recruiting
        • Memorial Sloan-Kettering Cancer Center (All Protocol Activities)
        • Contact:
      • Uniondale, New York, United States, 11553
        • Recruiting
        • Memorial Sloan Kettering at Nassau (Limited Protocol Activities)
        • Contact:
          • Pamela Drullinsky, MD
          • Phone Number: 516-559-1521

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

Ages Eligible for Study

  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients must have histologically confirmed adenocarcinoma of the breast confirmed at MSK. The patient must have had diagnostic biopsy or completion of primary surgical management, within 3 months of enrollment. Results of HER-2/neu, estrogen receptor, and progesterone receptor are required for study entry.
  • Patients must be ≥ 70 years of age.
  • Patients must have ECOG performance status >2 (Karnofsky score of ≥ 60%).
  • Patients may have received hormonal therapy for the purpose of chemoprevention.
  • Adjuvant/neoadjuvant chemotherapy decision to treat based on the discretion of investigator
  • Cohort 1 only: Patients have any histology except Her 2 Neu positive in the adjuvant or neoadjuvant setting
  • Cohort 2 only: Patients have triple negative (ER- (10%) PR-Her 2 Neu -) in the neoadjuvant setting
  • Cohort 2 only: Patients have received at least 1 dose of carboplatin/paclitaxel +/- pembrolizumab in the neoadjuvant setting

Required Organ Function

Adequate hematologic function defined as follows:

  • Absolute neutrophil count (ANC) ≥ 1,500 cells/mm3
  • Platelets ≥ 100,000 cells/mm3

Adequate renal function defined as follows:

° Creatinine clearance (CrCL) of >30 mL/min by the Cockcroft-Gault formula:

CrCl (mL/min) = [([140 - age(years)] x weight (kg))/72 x creatinine (mg/dL)] (x 0.85 for female patients)

Adequate hepatic function defined as follows:

  • Total bilirubin ≤ 1.5 x institutional upper limit of normal (ULN) (patients with known Gilbert's disease who have bilirubin level ≤ 3 x institutional ULN may be enrolled)

  • AST and ALT ≤3 x institutional ULN

    • Patients or their Legally Authorized Representative must give written, informed consent indicating their understanding and willingness to participate in the study.

Exclusion Criteria:

  • Stage IV breast cancer
  • CARG score- high Frail 4 or more as assessed by CAIT
  • Her 2 Neu positive 3+/amplified breast cancer
  • No prior chemotherapy within 1 year of study enrollment
  • Cohort 2 only: patients may not receive pembrolizumab during dd CMF treatment

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: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Cohort 1
ddCMF x 4 Cycles followed by either 4 doses of dd paclitaxel given every 2 weeks or 12 doses of paclitaxel given weekly, per investigator discretion, in the adjuvant or neoadjuvant setting
Drug: CMF Regimen
CMF regimen: Cyclophosphamide, Methotrexate, and Fluorouracil
Drug: Paclitaxel
Paclitaxel will be administered as an IV infusion into a peripheral or central vein.
Experimental: Cohort 2
ddCMF x 4 Cycles in the neoadjuvant setting, in participants who have received at least 1 dose of carboplatin/paclitaxel +/- pembrolizumab
Drug: CMF Regimen
CMF regimen: Cyclophosphamide, Methotrexate, and Fluorouracil

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of participants who have completed all four cycles of CMF
Time Frame: 6 months
Evaluate the feasibility of 4 cycles of ddCMF as an alternative to AC in 2 standard regimens in patients > or = to age 70 with breast cancer. Feasibility is evaluated by the completion of all four cycles of CMF.
6 months

Collaborators and Investigators

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

Sponsor

Memorial Sloan Kettering Cancer Center

Investigators

  • Principal Investigator: Pamela Drullinsky, MD, Memorial Sloan Kettering Cancer Center

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.

Helpful Links

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)

August 11, 2026

Primary Completion (Estimated)

August 11, 2030

Study Completion (Estimated)

August 11, 2030

Study Registration Dates

First Submitted

August 12, 2026

First Submitted That Met QC Criteria

August 12, 2026

First Posted (Actual)

August 17, 2026

Study Record Updates

Last Update Posted (Actual)

August 17, 2026

Last Update Submitted That Met QC Criteria

August 12, 2026

Last Verified

August 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 26-303

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made following one year after publication and for up to 36 months later. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org.

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.

Yes

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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