Extracorporeal Shockwave Therapy for the Treatment of Refractory Chronic Angina Pectoris
- Conditions
- Refractory Angina Pectoris
- Interventions
- Device: Cardiac Extracorporeal Shockwave Therapy generator (Cardiospec)
- Registration Number
- NCT01567644
- Lead Sponsor
- Medispec
- Brief Summary
Low intensity shockwaves have been proven in animal studies to induce local growth of new blood vessels from existing ones.
The hypothesis of this study is that shockwave therapy could improve the symptoms of patients with refractory angina not amenable to revascularization with angioplasty or bypass surgery.
- Detailed Description
Low intensity shockwaves (1/10 the ones used in Lithotripsy) are delivered to myocardial ischemic tissue. Shockwaves are created by a special generator and are focused using a shockwave applicator device. The treatment is guided by standard echocardiography equipment. The shockwaves are delivered in synchronization with Patient R-wave to avoid arrhythmias. The treatment is painless.
At first, the patient undergoes stress- PET testing to identify the ischemic areas. Following that, the same area is localized by the ultra-sound device and the shockwaves are focused to the ischemic area. Several treatments are required for optimal results.
Recruitment & Eligibility
- Status
- UNKNOWN
- Sex
- All
- Target Recruitment
- 35
- Diagnosed with chronic stable angina pectoris.
- Documented myocardial segments with reversible ischemia
- AP CCS class of III-IV.
- Stable dosage of medication used to treat angina for at least 6 weeks prior to enrollment.
- Exercise tolerance time < 10 min (modified Bruce)
- Two ETT tests results (within two weeks) averaging no more than 25% of their mean
- Documented epicardial coronary artery disease not amenable to angioplasty or CABG.
- Signed an IRB approved informed consent form.
- Life expectancy of > 12 months.
- Intraventricular thrombus
- Malignancy in the area of treatment
- Severe COPD
- No smoking during the study procedure
- MI less < 3 months prior to treatment
- Severe Valvular disease
- Child bearing potential
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description Active Shockwave Therapy Cardiac Extracorporeal Shockwave Therapy generator (Cardiospec) Patients in this group receive shockwave therapy.
- Primary Outcome Measures
Name Time Method Change in AP-CCS 6 Months The AP CCS Stage at the 6 months post baseline.
- Secondary Outcome Measures
Name Time Method Exercise tolerance time 6 Months The change in Total Exercise Time (Exercise Tolerance Test-ETT) from baseline to 6 months post baseline
Change in PET scan 6 months The change in perfusion in pharmacological induced stress PET scan (at rest and at stress) from baseline to 6 months post baseline.
Trial Locations
- Locations (1)
Heart and Diabetes Center North-Rhine Westfalia
🇩🇪Bad Oeynhausen, Germany