This summary is intended to provide a general overview of the Children's Oncology Group (COG) study ALTE11C2. It will provide information about the children who are eligible for this study and basic information regarding the specifics of the study. The informed consent and protocol contain the full details of the study. Those documents are available to you from your oncologist.

It is important to understand that participating in a long-term follow-up study is entirely voluntary. The decision about whether or not to participate will not affect the care provided by the healthcare team in any way. You can find additional information about study participation at Always discuss any questions that you may have with your health care team.

Study Number


Official Title

Health Effects after Anthracycline and Radiation Therapy (HEART): Dexrazoxane and Prevention of Anthracycline-related Cardiomyopathy

Trial Opening Date

ALTE11C2 opened on July 8, 2013. The study aims to accrue between 230 and 420 participants in 3 different strata.

General Patient Eligibility

Patients are eligible to participate in this study if:

  • They have a history of leukemia or lymphoma and treated on the following protocols: P9404, P9425, P9426, DFCI 95-01 (high-risk only); or a history of osteosarcoma treated on the P9754 protocol
  • Patients and/or their parents or legal guardians must sign a written informed consent.

General Background and Study Goal

Given the very high survival rates among children with cancer, minimizing or preventing therapy-related late effects is very important. Long-term childhood cancer survivors have been shown to have increased risks of developing heart problems including heart failure. Dexrazoxane (DRZ) is a medication, sometimes given together with doxorubicin, that tries to prevent heart problems that may happen many years after treatment.

The primary goal of this study is to determine whether patients assigned to receive DRZ have less damage to their heart compared to those who didn't receive it. We will also evaluate whether DRZ's cardioprotective effect changes by anthracycline dose, chest radiation, and other factors such as age, and gender. We will also look at survival rates between patients treated with and without dexrazoxane.

Summary of the Treatment

This study will require the participant to complete the following items once:

  1. Echocardiogram
  2. 6-minute walk test
  3. Diagnostic/symptom checklist
  4. Measurement of height, weight, waist size, and blood pressure
  5. Blood draw for study laboratory tests
  6. Participant questionnaire

Risks and Side Effects

All risks and side effects will be explained by your study team during the consent process. They can answer any questions that you may have about giving permission for your child to be in the study.

The study consent form has more details about possible risks and side effects of this study.

Contact Information

Your child's oncologist is the best source for further information.

Study Chair

Eric Chow, M.D.
Seattle Children's Hospital


Initial development Name Date
Written by (protocol nurse) Eleanor Hendershot RN(EC), BScN, MN May 24, 2017
Reviewed/approved by (PI) Eric Chow, M.D. March 5, 2018
Ongoing review
Reviewed and updated by Eleanor Hendershot RN(EC), BScN, MN October 23, 2018