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Study of the Effect of Eplerenone on Heart Function in Women Receiving Anthracycline Chemotherapy for Breast Cancer
A Prospective Randomized Placebo-controlled Study of the Effect of Eplerenone on Left Ventricular Diastolic Function in Women Receiving Anthracycline Therapy for Breast Cancer
1 other identifier
interventional
44
1 country
1
Brief Summary
Doxorubicin and other anthracyclines are commonly used to treat breast cancer and other types of cancer. Unfortunately, they can cause heart muscle damage, resulting in scarring, abnormal contraction and relaxation, and heart failure symptoms. This side effect occurs more frequently at higher doses, and limits the total dose that can be given to cancer patients. Eplerenone is an oral medication that prevents or reverses heart damage in other disease states, and is commonly used to treat heart failure. This study will investigate the use of eplerenone to protect the heart from these harmful side effects of doxorubicin. Few therapies have been shown to prevent heart damage in patients receiving anthracyclines. Small studies have suggested that other heart failure medications (ACE inhibitors, beta-blockers) may reduce the incidence of cardiac toxicity, but eplerenone and other drugs in its class (aldosterone antagonists) have not previously been studied. Eplerenone inhibits enzyme pathways that cause scarring of the heart, and animal studies suggest that anthracyclines cause damage through these same pathways. This study aims to investigate whether eplerenone protects the heart from the harmful effects of doxorubicin chemotherapy. Specifically, it will measure the effect that eplerenone has on heart muscle relaxation. It will randomly assign women undergoing chemotherapy with doxorubicin to one of two groups: one group will receive eplerenone, and the other group will receive placebo (sugar) pills. The subjects will not know which type of pills they are taking. Heart muscle relaxation will be measured at baseline, after completion of chemotherapy (8-12 weeks), and after 6 months. There will also be various blood tests measured in the study subjects, to determine whether there might be certain blood tests that identify patients at particularly high risk of heart toxicity after doxorubicin therapy.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_2 breast-cancer
Started May 2014
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 15, 2012
CompletedFirst Posted
Study publicly available on registry
October 17, 2012
CompletedStudy Start
First participant enrolled
May 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 1, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
November 1, 2016
CompletedJanuary 5, 2017
January 1, 2017
2.5 years
October 15, 2012
January 3, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change in average E' (averaged septal E' and lateral E')
The average early diastolic tissue velocity of the mitral valve annulus measured by tissue Doppler echocardiography (averaged velocities of the mitral annulus measured at the lateral edge and the septal edge)
6 months
Secondary Outcomes (9)
Development of worsening diastolic function
6 months
Development of worsening systolic function
6 months
Change in septal E'
6 months
Change in lateral E'
6 months
Change in E/E'
6 months
- +4 more secondary outcomes
Other Outcomes (7)
Incidence of hyperkalemia
6 months
Incidence of adverse events leading to discontinuation of study drug
6 months
Signal-averaged ECG (SAECG) changes
Baseline, 8-12 weeks, 6 months
- +4 more other outcomes
Study Arms (2)
Placebo
PLACEBO COMPARATOROne tablet by mouth daily. If serum potassium level is \<5.0 mmol/L at four weeks, increase to two tablets by mouth daily. If estimated glomerular filtration rate (eGFR) is between 30-49 ml per min per 1.73m2, initial dose is: one tablet by mouth every other day. If serum potassium level is \<5.0 mmol/L at four weeks, increase to one tablet by mouth daily.
Eplerenone
EXPERIMENTALEplerenone 25 mg tablet by mouth daily. If serum potassium level is \<5.0 mmol/L at four weeks, increase to two 25 mg tablets by mouth daily. If estimated glomerular filtration rate (eGFR) is between 30-49 ml per min per 1.73m2, initial dose is: eplerenone 25 mg tablet by mouth every other day. If serum potassium level is \<5.0 mmol/L at four weeks, increase to 25 mg tablet by mouth daily.
Interventions
Eligibility Criteria
You may qualify if:
- Stage I-III breast cancer
- Scheduled to undergo treatment with doxorubicin-based chemotherapy regimen
- Able to provide informed consent
You may not qualify if:
- Use of anthracycline agents other than doxorubicin
- Baseline LVEF ≤50% by any modality (nuclear, echo, MRI)
- Atrial fibrillation or flutter
- Mitral valve disease (More than mild mitral stenosis or regurgitation, previous mitral valve replacement or repair)
- Inability to obtain adequate echo images for required analysis
- Hyperkalemia (K+ \>5.0)
- Glomerular filtration rate (GFR) \<30 ml/min/1.73m2
- Uncontrolled hypertension, defined as having a systolic blood pressure \> 180 mmHg and/or a diastolic blood pressure \>110 mmHg
- Symptomatic hypotension or systolic blood pressure \<85 mmHg
- History of hypersensitivity to eplerenone or spironolactone
- Significant hepatic disease (e.g., previously documented positive serology for viral hepatitis) or aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) \>3 times the upper limits of normal
- Concomitant treatment with spironolactone, potassium-sparing diuretics, potassium supplements, or strong inhibitors of cytochrome P450 3A4 (CYP3A4) (i.e. ketoconazole, itraconazole, nefazodone, troleandomycin, clarithromycin, ritonavir, nelfinavir)
- History of alcohol and/or any other drug abuse
- Women who are either pregnant, lactating or of childbearing potential and not using an acceptable method of contraception
- Other severe acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with trial participation or investigational product administration or may interfere with the interpretation of trial results and, in the judgment of the investigator, would make the subject inappropriate for entry into this trial
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of British Columbialead
- Canadian Cancer Society (CCS)collaborator
- Pfizercollaborator
Study Sites (1)
British Columbia Cancer Agency, Vancouver Centre
Vancouver, British Columbia, V5Z 4E6, Canada
Related Publications (38)
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MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Sean A Virani, MD, MSc, MPH
University of British Columbia
- PRINCIPAL INVESTIGATOR
Margot Davis, MD
University of British Columbia
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 15, 2012
First Posted
October 17, 2012
Study Start
May 1, 2014
Primary Completion
November 1, 2016
Study Completion
November 1, 2016
Last Updated
January 5, 2017
Record last verified: 2017-01
Data Sharing
- IPD Sharing
- Will not share