Clinical Trials Search
Prospective Evaluation of Carvedilol in Prevention of Cardiac Toxicity in Patients with Metastatic HER-2+ Breast Cancer, Phase III
Primary Objective: To assess whether prophylactic beta blocker therapy with carvedilol compared with no intervention reduces the risk of subsequent cardiac dysfunction in patients with metastatic breast cancer receiving trastuzumab based HER-2 targeted therapy. Secondary Objectives: a. To assess whether prophylactic beta blocker therapy with carvedilol compared with no intervention reduces the risk of predefined subsequent cardiac events in patients with metastatic breast cancer receiving trastuzumab¿based HER-2 targeted therapy. b. To evaluate if prophylactic carvedilol compared with no intervention results in a longer time to first interruption of trastuzumab based HER-2 targeted therapy due to either cardiac dysfunction or events. with no intervention reduces the risk of subsequent cardiac dysfunction OR events in this population. d. To establish and prospectively collect a predefined panel of baseline core cardiovascular measures and develop a predictive model of cardiac dysfunction. e. To evaluate the rate of cardiac dysfunction in an observational arm consisting of individuals otherwise eligible for the study except for use of beta blockers, angiotensin receptor blocker (ARB), or angiotensin converting enzyme (ACE) inhibitors for other medical reasons. 1.3 Translational Objectives a. To evaluate the lle655Val and Alall70Pro single nucleotide polymorphisms (SNPs) of the HER-2 gene as a predictive biomarker of study-defined cardiac dysfunction. b. To evaluate plasma neuregulin-1 at baseline and over study time as a predictive biomarker of study-defined cardiac dysfunction. c. To evaluate the feasibility of performing serial left ventricular strain in an NCTN group setting, with the goal of 75% of patients contributing both a baseline and at least one follow-up strain measurement. d. To bank blood for future translational medicine studies such as brain natriuretic peptide (BNP), additional SNPs, and high sensitivity troponin.
STEP 1 REGISTRATION