DZHK Study: Plaster against blood clots
A new clinical study is starting at the German Centre for Cardiovascular Research (DZHK) with an innovative and highly specific blood thinner. Headed by the DZHK Munich site, the scientists want to ascertain how safely and effectively this compound, which only acts locally, can prevent blood clots in patients with a coronary heart disease being treated with a cardiac catheter.
The coronary vessels are blocked in coronary heart disease. If physicians dilate the vessels with a catheter, the deposits (plaques) can tear and damage the walls of the blood vessels. Such small damages are a risk factor for circulatory disorders and heart attacks, as platelets can adhere to these sites and clots can form. Patients therefore receive blood thinning drugs that prevent platelet accumulation during the procedure. The disadvantage of the drugs used to date is that they also increase the risk of potentially life‑threatening bleedings, because they inhibit a central step of haemostasis, or platelet accumulation, in the entire body. The purpose of the DZHK study, which is headed by the German Heart Centre Munich, is to investigate whether the new antiplatelet drug Revacept reduces the formation of blood clots during cardiac catheterisation without increasing the bleeding risk. In comparison to conventional blood thinners, Revacept only binds to the damaged sites in the vessel and shields them so that no platelets can accumulate there. “Revacept is like a plaster that seals the lesion in a targeted manner”, exemplifies PD Dr. Stefanie Schüpke of the German Heart Centre Munich.
From the laboratory to the patient
Years of intensive basic research, in which scientists at LMU Munich and the Technical University Munich researched how platelets adhere to damaged vessel sites, preceded the development of Revacept. “It was crucial to target structures that distinguish between healthy and atherosclerotic vessels”, explains Prof. Adnan Kastrati of the German Heart Centre Munich, one of the chief investigators. For this reason, the scientists focused on the adhesion of platelets to the collagen that only protrudes into the blood stream where vessel walls are damaged. The agent Revacept was created based on their findings. It binds to the collagen of the damaged sites in a targeted manner and thus prevents the adhesion of platelets. “Revacept is an example of successful translational research, in which the findings from basic research lead to the development of innovative therapies”, clarifies Prof. Thomas Eschenhagen, the representative of the DZHK Board of Directors.
For the first time in patients with coronary heart disease
Revacept was further developed into a drug for use in humans by the biotech company advanceCOR, a spin-off of the Technical University Munich. A previous study with healthy volunteers has already proven that Revacept is safe and well tolerated. Moreover, a clinical trial is already being conducted investigating Revacept in stroke patients. In the upcoming study, 332 patients with a coronary heart disease for whom a catheterisation is planned will be examined. Some patients will be treated with Revacept in addition to the usual medication. During the study, bleeding risk will be monitored and a marker in the blood will be used to investigate whether Revacept sufficiently prevents damage of the heart muscle. In total, six DZHK sites are participating in the study, which is co-financed by the manufacturer, advanceCOR GmbH in Martinsried.
About the DZHK
The German Centre for Cardiovascular Research (DZHK) wants to ensure that new knowledge from cardiovascular research reaches patients as quickly as possible. Our goal is to improve diagnosis, prevention, and treatment of cardiovascular diseases in Germany. In order to do this, basic research scientists and clinical scientists from 30 institutions work together at seven partner sites. The DZHK was founded in 2011 upon the initiative of the German Federal Ministry of Education and Research (BMBF) and is 90 percent funded by the Federal Government and 10 percent by the governments of those German federal states in which its member institutions are headquartered. It is among the six German Centres for Health Research (Deutsche Zentren der Gesundheitsforschung, DZG) that are dedicated to the investigation of widespread diseases.
Further information at www.dzhk.de
Official study title:
Revacept, a novel inhibitor of platelet adhesion in patients with stable coronary artery disease undergoing elective percutaneous coronary intervention: a randomized, double-blind, placebo-controlled, phase II trial
Prof. Dr. med. Adnan Kastrati (German Heart Centre Munich,
Cardiology Department, Hospital of the Technical University Munich),
Prof. Dr. med. Steffen Massberg (University Hospital of LMU Munich, Department of Internal Medicine I - Cardiology, Großhadern Campus)
Christine Vollgraf, Public Relations Officer, German Centre for Cardiovascular Research (DZHK), phone: 030 3465 529 02, presse[at]dzhk.de