To evaluate the safety and efficacy of the novel perflutren-based ultrasound-enhancing agent MVT-100 compared to Definity in healthy volunteers.
Approach:
Study Design: A prospective interventional phase 1/2 study involving healthy volunteers who underwent echocardiography and received ascending dilute bolus doses of MVT-100 or Definity.
Monitoring: Participants were monitored for vital signs, ECGs, and laboratory tests before and after contrast administration.
Evaluation: Three expert echocardiographers evaluated images for left ventricular opacification and acoustic shadowing, blinded to the administered agent.
Key Findings:
No serious adverse events reported for either MVT-100 or Definity.
No clinically significant changes in vital signs, ECG, or laboratory parameters post-administration.
MVT-100 produced higher left ventricular opacification scores than Definity across all dose levels.
Overall shadowing rates were approximately 3% with MVT-100 compared to 8% with Definity.
Statistically significant reductions in acoustic shadowing observed across most left ventricular segments.
Interpretation:
Limitations:
Study details and formal disclosure information were not provided in the abstract materials.
An ensemble electrocardiogram model classified derived diastolic dysfunction risk phenotypes and stratified heart failure–related death risk across external cohorts, according to findings presented at ASE 2026.