News | September 21, 2012

Primus Drug-Coated Balloon (DCB) Performs Well in Trial

Preclinical and clinical studies to be published in next month’s Minerva Cardioangiologica, the journal of the Italian Society of Angiology and Vascular Pathology

Primus Drug-Eluting Balloon

September 21, 2012 — Cardionovum GmbH announced that the results of a preclinical study and a first-in-man clinical study of its Primus drug-coated balloon (DCB) will be published in the October issue of Minerva Cardioangiologica, the journal of the Italian Society of Angiology and Vascular Pathology and of the Italian Society of Vascular Diagnostics. Clinical study results in 19 consecutive patients presenting with in-stent restenosis (ISR) of drug-eluting stents showed that treatment with the Primus DCB resulted in “high procedural efficacy,” and “there were no adverse clinical events observed out to six months.” The first-in-man clinical study sought to assess clinical device performance in a small group of patients; its results showed procedural success in all cases, with no deaths, and that no patient required revascularization of the target lesion.

Authors of the publication include the principal investigator of the clinical trial, Carlo Briguori, M.D., Ph.D., Department of Cardiology, Clinica Mediterranea, Naples, Italy; and Renu Virmani, M.D., president and medical director, CVPath Institute, Gaithersburg, Md., who conducted the preclinical trial. Titled “From bench to bedside: Initial experience with the Primus drug-coated balloon catheter,” their paper concludes, “The current study investigated the preclinical safety and clinical performance of a novel DCB catheter, which utilizes an innovative coating technology aimed at providing sustained drug effects in the treated vessel wall. Preclinical investigation showed an excellent performance in comparison with a contemporary DCB. First-in-man clinical experience confirmed excellent device performance with high procedural success and absence of clinical events out to six months follow-up.”

“Primus represents a new-generation DCB with an innovative carrier matrix that facilitates effective transfer of paclitaxel to the arterial vessel wall. It also should be noted that the Primus DCB showed in the preclinical study sustained fibrin deposition, which is an indirect measurement of drug efficacy in arterial tissue and is associated with the protection of the treated vessel wall against smooth muscle cell proliferation at 28 days; whereas, fibrin was absent at 28 days in control group vessels treated with another currently marketed DCB. These results support more persistent drug tissue effects with the Primus DCB,” said the authors.

Another clinically important result of the preclinical study validated that Primus DCB dilatation, compared to DEBs that are coated with a highly water soluble drug excipient such as contrast media/PTX mixtures and other hydrophilic/drug balloon surface coatings, did not cause any noticeable microemboli that may be associated with myocardial damage.

For more information: www.cardionovum.eu/primus

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