TRPC6 to Predict and Prevent Chemotherapy Related Cardiomyopathy and Heart Failure (Prospective Study)


About this study

The purpose of this study is to characterize TRPC6 risk variants for doxorubicin-related cardiotoxicity in prospectively collected samples from breast cancer patients.   

Breast cancer patients are more than three times at risk for developing congestive heart failure (CHF), compared with patients who did not have cancer. The increased risk of HF is observed as early as one year from diagnosis of cancer and overall, 7% of patients develop CHF (median follow-up 8.5 years) 

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  • 18 years of age or older.
  • Any breast cancer patient initiating doxorubicin/other anthracycline and patients receiving trastuzumab without doxorubicin/anthracycline in the neoadjuvant/adjuvant setting.
  • An understanding of the protocol and its requirements, risks, and discomforts.
  • The ability and willingness to sign an informed consent.
  • Diagnosed with therapy related cardiotoxicity defined as; cardiomyopathy, symptomatic heart failure, asymptomatic reduced systolic function, acute coronary syndrome, myocardial infarction, critical limb ischemia, cardiac arrhythmias or myocarditis possibly related to prior cancer treatment OR completed chemotherapy with no cardiotoxicity at least two years post treatment OR Patients with cancer who will be initiating systemic therapy with potentially cardiotoxic medications.  This will include doxorubicin chemotherapy, or trastuzumab.

Exclusion Criteria:

  • Inability on the part of the patient to understand the informed consent or be compliant with the protocol.
  • Anemia with hemoglobin less than 8.
  • Patients not willing to undergo a blood draw.
  • Patients with stage IV or distant metastatic breast cancer.

Eligibility last updated 2/9/22. Questions regarding updates should be directed to the study team contact.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Jacksonville, Fla.

Mayo Clinic principal investigator

Nadine Norton, Ph.D.

Open for enrollment

Contact information:

Cancer Center Clinical Trials Referral Office

(855) 776-0015

More information


Publications are currently not available

Additional contact information

Cancer-related trials contact form

Phone: 855-776-0015 (toll-free)

International patient clinical studies questions