Cynthia Ma, MD, PhD

Cynthia Ma, MD, PhD

Medical Oncologist

Primary Academic Title

Professor of Medicine, Division of Oncology, Section of Breast Oncology, WashU Medicine

Clinical Expertise

Breast cancer

Research Interest

Breast cancer, endocrine therapy, developmental therapeutics, biomarkers and pharmacogenetics.

Education

  • 1990: MD, Beijing Medical University
  • 1997: PhD, developmental biology, University of Cincinnati

Training

  • 1990 - 1991: Resident, internal medicine and endocrinology, Beijing Medical University
  • 1997 - 1998: Postdoctoral fellow, endocrinology and oncology, University of Cincinnati
  • 1998 - 2001: Intern and resident, internal medicine, New Hanover Regional Medical Center, Wilmington, N.C.
  • 2001 - 2005: Fellow, hematology and oncology, Mayo Clinic, Rochester, Minn.

Board Certification

  • 2001: American Board of Internal Medicine, Internal Medicine
  • 2004: American Board of Internal Medicine, Hematology
  • 2005: American Board of Internal Medicine, Medical Oncology

Selected Research Publications

First-Line Camizestrant for Emerging ESR1-Mutated Advanced Breast Cancer.
  • Bidard FC, Mayer EL, Park YH, [...] Ma C, [...] Turner NC
  • N Engl J Med 2025
Novel treatment approaches utilizing antibody-drug conjugates in breast cancer.
  • Davis AA, Hesse J, Pereira PMR, Ma CX
  • NPJ Breast Cancer 2025
Racial Differences in ctDNA Profiles, Targeted Therapy Use, and Outcomes in Metastatic Breast Cancer.
  • Podany EL, Foffano L, Gerratana L, [...] Ma CX, [...] Davis AA
  • JAMA Netw Open 2025
Stroma-derived Dickkopf-1 contributes to the suppression of NK cell cytotoxicity in breast cancer.
  • Lee S, Ricci B, Tran J, [...] Ma CX, [...] Faccio R
  • Nat Commun 2025
Genetic Alterations Detected by Circulating Tumor DNA in HER2-Low Metastatic Breast Cancer.
  • Hensing WL, Gerratana L, Clifton K, [...] Ma CX, [...] Davis AA
  • Clin Cancer Res 2023

View All Publications

Contact Information

  • Gary C. Werths Building at Siteman Cancer Center

    4500 Forest Park Avenue
    Saint Louis, MO 63108

Request an appointment