NCT04044872

Brief Summary

Patients enrolled in the study will receive standard of care adjuvant or definitive breast, chest wall or thoracic radiation therapy.Cardiac mitochondrial dysfunction is a hallmark of radiation-induced cardiac injury. Reactive oxygen species (ROS) produced by ionizing radiation cause oxidation of mitochondrial proteins and alter oxidative phosphorylation and pyruvate metabolism(5). The goal of this study is to detect early changes in the mitochondrial metabolism in situ as a marker for subclinical radiation-induced cardiotoxicity.

Trial Health

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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
3

participants targeted

Target at below P25 for early_phase_1

Timeline
Completed

Started Dec 2019

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 10, 2019

Completed
26 days until next milestone

First Posted

Study publicly available on registry

August 5, 2019

Completed
4 months until next milestone

Study Start

First participant enrolled

December 17, 2019

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 30, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 30, 2021

Completed
Last Updated

February 2, 2026

Status Verified

January 1, 2026

Enrollment Period

1.7 years

First QC Date

July 10, 2019

Last Update Submit

January 29, 2026

Conditions

Keywords

CardiotoxicityCardiac injuryRadiation induced heart disease (RIHD)

Outcome Measures

Primary Outcomes (1)

  • To determine if radiation-induced cardiac injury causes myocardial mitochondrial dysfunction

    To determine if radiation-induced cardiac injury causes myocardial mitochondrial dysfunction as measured by increase in \[1-13C\]lactate/ \[13C\]bicarbonate ratio and a decrease in \[5-13C\]glutamate formation in patients receiving radiotherapy to the thorax

    at 1 month before the radiation

Secondary Outcomes (1)

  • Determination of the prognostic value decreased of myocardial mitochondrial pyruvate flux in predicting clinically significant radiation induced cardiotoxicity.

    At 1 month after the radiation

Study Arms (1)

Single Arm:Diagnosing Cardiotoxicity when on Radiation therapy

EXPERIMENTAL
Diagnostic Test: [1-13C]pyruvate along with MRI imaging

Interventions

\[1-13C\]pyruvate: 0.1 mmol/kg dose will be injected at 5 mL/s followed by a 25 mL saline flush at 5 mL/s at the time of imaging performed at baseline (prior to radiation therapy), and 1 month after completion of radiation therapy.

Single Arm:Diagnosing Cardiotoxicity when on Radiation therapy

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Benign or malignant tumor of the breast (left-sided only) or thorax
  • Stage I to IV. If stage IV, patient must have life expectancy equal to or greater than 6 months
  • ECOG performance status 0-1
  • The patient must be deemed an appropriate candidate for standard of care radiation therapy
  • Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study participation, and for 90 days following completion of therapy. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately.
  • A female of child-bearing potential is any woman (regardless of sexual orientation, having undergone a tubal ligation, or remaining celibate by choice) who meets the following criteria:
  • Has not undergone a hysterectomy or bilateral oophorectomy; or
  • Has not been naturally postmenopausal for at least 12 consecutive months (i.e., has had menses at any time in the preceding 12 consecutive months).
  • A female of postmenopausal status is defined as patients over 60 or greater OR patients age 50-59 who meet the following criteria:
  • s/p bilateral oophorectomy, OR
  • with intact uterus without menses in the past 12 months OR,
  • with biochemical confirmation of post-menopausal status (estradiol in the menopausal range based on local laboratory criteria)
  • Ability to understand and the willingness to sign a written informed consent.

You may not qualify if:

  • Prior radiation involving the heart
  • Subjects may not be receiving any known cardiotoxic agents for the 6 months prior to the study and during the study
  • Diagnosis of connective tissue disorders, including systemic lupus erythematosis, scleroderma, or dermatomyositis
  • Patients with stage IV cancer with life expectancy of less than 6 months
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that, in the opinion of the investigator, would limit compliance with study requirements
  • eGFR \<30
  • Any contraindication to MRI (including, but not limited to metal implants and devices contraindicated at 3T, breast tissue expanders, non-MR compatible IV port, claustrophobia)
  • History of psychiatric or addictive disorders that would preclude obtaining informed consent
  • Subjects must not be pregnant or nursing due to the potential for congenital abnormalities and the potential of this regimen to harm nursing infants.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Radiation Oncology; UT Southwestern Medical Center

Dallas, Texas, 75390, United States

Location

MeSH Terms

Conditions

Unilateral Breast NeoplasmsCardiotoxicity

Condition Hierarchy (Ancestors)

Breast NeoplasmsNeoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue DiseasesHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and SymptomsDrug-Related Side Effects and Adverse ReactionsChemically-Induced DisordersRadiation InjuriesWounds and Injuries

Study Officials

  • Prasanna Alluri, MD, PhD

    UTSW Radiation Oncology

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Model Details: \[1-13C\]pyruvate 0.1 mmol/kg dose will be injected twice at the time of imaging performed at baseline prior to standard of care radiation therapy and twice at 1 month or later after completion of standard of care radiation therapy.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

July 10, 2019

First Posted

August 5, 2019

Study Start

December 17, 2019

Primary Completion

August 30, 2021

Study Completion

August 30, 2021

Last Updated

February 2, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations