Coffeyville

Researchers are evaluating patients with metastatic HER-2-positive breast cancer who are receiving trastuzumab-based therapy and are at risk of heart problems. The study includes two groups one large observational group taking beta blockers, ACE inhibitors, or ARBs alongside trastuzumab, and a smaller randomized group comparing the effects of carvedilol versus no treatment. The aim is to understand the occurrence of heart issues and whether carvedilol might help prevent cardiac side effects from chemotherapy. Participants are assigned to one of three arms based on their current medications. Patients not on beta blockers, ARBs, or ACE inhibitors are randomized to either receive carvedilol orally twice daily or no study intervention. Those already taking these heart medications enter an observational arm without additional treatment. Treatment and observation continue for up to 108 weeks unless disease progression or unacceptable side effects occur. Throughout the study, participants undergo heart function monitoring with echocardiograms every 12 weeks and provide blood samples for biomarker analysis. Researchers track the time to the first sign of heart dysfunction and any cardiac events, as well as adherence to medication and side effects. The study also collects data to develop models predicting heart risk and banks samples for future research. Participant involvement may last over two years with regular assessments to monitor safety and heart health.