Arterial Occlusive Disease

This research aims to evaluate how full-arch implant-supported prostheses affect lip support in patients undergoing complex dental rehabilitation. The study focuses on how different clinical and laboratory decisions between diagnosis and prosthesis delivery may influence the prosthetic design and the patient's facial profile. Advanced 3D facial scanning and superimposition techniques allow precise measurement of vertical occlusion and lip support. Participants will undergo removal of their full-arch implant-supported prostheses, with digital facial images captured before and after this procedure using a facial scanner. This observational study leverages modern digital technology to measure changes objectively and does not involve experimental treatments. During the study, researchers will assess changes in the volume around the mouth area, distances between the lips and esthetic lines on the facial profile, and angles related to the nose and lips. These measurements occur on the same day as the prosthesis removal. The study helps improve understanding of facial changes related to dental prostheses and involves participants collaborating with the research protocol through imaging and clinical assessments.

Researchers are evaluating the safety and early effectiveness of an injectable drug called IMC-001 in improving the stability of atherosclerotic plaques in patients diagnosed with acute coronary syndrome (ACS), which includes conditions like acute myocardial infarction or unstable angina. This early phase 1, randomized, double-blind, placebo-controlled study is being conducted at two centers and aims to better understand how IMC-001 affects plaque stability in these patients. The study involves two dose groups with nine subjects each, where six receive IMC-001 plus optimal medical therapy and three receive a placebo plus optimal medical therapy. Participants will receive injections of either IMC-001 or placebo alongside standard treatments for coronary artery disease. The trial includes a dose escalation design to assess safety and preliminary efficacy. Participants will be monitored for changes in coronary artery low-attenuation plaque volume using coronary computed tomography angiography (CCTA) at baseline and again six months after treatment. The study will track safety, plaque volume changes, and other clinical assessments during the treatment and follow-up periods. The total participation duration includes the treatment phase and a six-month evaluation after dosing to assess the primary outcome measure.

Researchers are evaluating whether using an automated Carbon Dioxide (CO2) injection system during infrainguinal peripheral vascular interventions (PVI) can reduce major adverse kidney events within 90 days in patients at moderately increased risk for contrast-associated acute kidney injury (CA-AKI). This Phase 3 randomized controlled trial compares a CO2-based contrast medium sparing strategy to the standard use of iodinated contrast media in patients with peripheral vascular and kidney diseases. Participants are randomly assigned to one of two groups. The intervention group receives PVI using an automated CO2 injection system as the primary contrast agent, with iodinated contrast media available as a backup if image quality is insufficient or if the patient cannot tolerate CO2 angiography. The control group undergoes routine PVI using iodinated contrast media according to local standards, avoiding high-osmolar contrast agents. All patients are followed for up to 12 months after their procedure. During the study, participants undergo the planned PVI procedure with either contrast method. Researchers carefully record the amount and reasons for any iodinated contrast media used in the CO2 group. Patients are monitored for kidney-related outcomes, focusing on major adverse kidney events up to 90 days after the intervention. The trial includes ongoing follow-up assessments to evaluate safety and effectiveness over one year.

This clinical investigation is a prospective, single-arm, multicenter post-market study designed to collect clinical data on the LeMaitre TufTex Over-the-Wire (OTW) Embolectomy Catheters. The study aims to confirm the device's performance in removing arterial emboli and thrombi, identify any emerging risks based on factual evidence, and ensure the continued acceptability of its benefit-to-risk ratio. The device is used for patients undergoing surgical treatment for emboli or thrombi removal, with the study sponsored by LeMaitre Vascular, Inc. The study involves using the LeMaitre TufTex OTW Embolectomy Catheter, which is intended for removing emboli and thrombi during embolectomy or thrombectomy. The catheter can also be used for catheter placement over a guidewire, vessel occlusion, fluid infusion, and aspiration. The investigation is planned to enroll 112 subjects across four sites in about three countries, with an enrollment period lasting 48 months. Each participant will be followed for one month after the procedure. The total study duration is approximately 56 months, including start-up, recruitment, follow-up, and closure phases. Participants will undergo surgical treatment using the catheter, and researchers will assess technical success defined as less than 30% residual stenosis one month after the procedure. Safety will be monitored during the procedure and follow-up. Additional outcomes measured include clinical success, revision rates, and vessel patency at one month post-procedure. The study includes monitoring for any adverse events to ensure safety and performance. Participation involves one month of follow-up after the surgical procedure to evaluate these outcomes.

This clinical trial evaluates the LeMaitre4 TufTex Single Lumen Embolectomy Catheter in patients undergoing surgery to remove arterial emboli and thrombi. The study aims to confirm the device's performance and safety, identify any new risks based on real patient data, and ensure the benefit-risk balance remains acceptable. Sponsored by LeMaitre4 Vascular, Inc., the study is conducted at several sites in Europe with a planned enrollment of 112 patients. Participants will receive treatment using the LeMaitre4 TufTex Single Lumen Embolectomy Catheter, a device featuring a latex balloon attached to a radiopaque shaft. The balloon helps remove emboli and thrombi by being withdrawn through an artery during surgery. This is a single-arm study, meaning all participants receive the device treatment without comparison groups. During the study, researchers will monitor safety outcomes such as device- or procedure-related serious events during and up to one month after the procedure. They will also assess technical success based on the amount of artery narrowing after one month. Additional evaluations include clinical success, revision rates, and artery openness over time. Participants will be followed for at least one month after treatment to track these outcomes and ensure safety.

This research investigates the safety and performance of various Vascular Grafts, including FlowWeave Bioseal, FlowNit Bioseal, FlowLine Bipore, and FlowLine Bipore Heparin, in treating arterial diseases such as dissection, aneurysm, intramural hematoma, penetrating aortic ulcer, contained rupture, and stenosis affecting the aorta or peripheral arteries in the lower limbs. It also covers the use of these grafts for debranching head vessels and as arterio-venous shunts. The study is observational and focuses on patients who have already received these grafts. Patients included in this study have received one of these Vascular Grafts as part of their treatment for arterial conditions. The study collects data from routine care, including interventions like open repair of the aorta and peripheral arteries. The data collection period lasts approximately 60 months plus an additional 6 months beyond the last follow-up visit, depending on each patient's timeline. Participants' medical records and observations gathered during standard care visits will be used for data collection. Researchers will monitor outcomes such as 30-day mortality, longer-term mortality at intervals up to 60 months, graft-related adverse events, hemorrhage, stenosis or occlusion, graft patency, pseudoaneurysm formation, infections, sepsis, and stroke occurrences. Patients will be observed throughout this period while continuing their usual care, providing a comprehensive view of graft performance and safety over time.

Researchers are evaluating a preventive, multidisciplinary primary care intervention designed around a therapeutic garden to assess its acceptability among patients with cardio-neurovascular diseases. This study focuses on individuals suffering from various vascular conditions, including atrial fibrillation, heart failure (NYHA Class II), cardiomyopathies, ischemic stroke, and resistant hypertension. The main goal is to understand how patients and those involved in their care respond to this novel intervention. The intervention consists of a 6-month program that includes gardening activities, adapted physical exercise, nutritional workshops, and questionnaires to gather feedback. Participants may either take part in this multidisciplinary preventive action or choose not to receive the intervention but still complete questionnaires explaining their reasons. The study compares these two groups to identify acceptance rates and factors influencing participation. Participants will be involved for six months, during which their acceptance of the intervention and any obstacles or facilitators will be recorded. Researchers will assess the impact of the program through questionnaires and follow-up evaluations. The study monitors participants from enrollment through the end of treatment, aiming to gather comprehensive data on the intervention's feasibility and effects on patients with cardio-neurovascular conditions.

Researchers are conducting a prospective national registry in Denmark to observe and collect data on percutaneous transluminal renal angioplasty (PTRA) in patients who have high-risk renovascular hypertension. This registry includes patients selected based on common national criteria and follows a standardized protocol across three Danish centers offering PTRA. The study aims to evaluate changes in blood pressure and other health outcomes after the procedure. The intervention being studied is percutaneous transluminal renal angioplasty, including angioplasty with stenting, especially in patients with fibromuscular dysplasia. Additional treatments such as antiplatelet therapy, cholesterol-lowering drugs, antihypertensive medications, and lifestyle measures like smoking cessation, diet, and physical activity are used according to the physician's discretion. The study monitors patients over time following their PTRA treatment. Participants undergo regular assessments including 24-hour ambulatory blood pressure monitoring and kidney function tests. The primary outcome measured is the change in systolic and diastolic blood pressures 24 months after PTRA in patients with elevated baseline blood pressure. Secondary outcomes include blood pressure changes at multiple time points, adjustments in antihypertensive treatment, kidney function changes, clinical and safety endpoints. Follow-up evaluations occur up to 60 months post-treatment to monitor long-term effects and safety.

Researchers are investigating the safety and effectiveness of the Renzan14 Peripheral Stent System in treating patients with femoro-popliteal disease, a type of peripheral arterial disease affecting the leg arteries. This prospective, multicenter, single-arm study plans to include about 100 patients eligible for treatment with this stent. The study focuses on evaluating a modern nitinol stent designed for complex lesions where drug-coated balloons and drug-eluting stents may be less effective or raise concerns about toxicity. The Renzan stent is a self-expanding nitinol device pre-mounted on a catheter designed for precise placement in the affected arteries. It consists of two layers of braided nitinol wire mesh with radiopaque markers to assist in positioning during the procedure. The stent can be partly recaptured during placement if needed. This study observes patients undergoing endovascular implantation of the Renzan stent without comparison groups, focusing on the device's performance and safety after treatment. Participants will be followed for assessments of safety and effectiveness, including measurements at 30 days and up to 12 months after the procedure. Key evaluations include device and procedural success during implantation, rates of death, need for further treatment of the treated artery, artery openness, limb ischemia improvement, major adverse events, and limb amputation at multiple time points up to 36 months. Patients will be monitored closely with follow-up visits to track these outcomes and the long-term performance of the stent.

Researchers are evaluating the safety and effectiveness of the BASIS technique, a specialized balloon angioplasty combined with distal protection by a stent retriever, in treating acute large vessel occlusion strokes caused by intracranial atherosclerosis. This multicenter, prospective, observational single-arm study aims to gather detailed data on procedure times, recanalization success, complications, and patient outcomes to improve treatment methods for complex stroke lesions. The study involves using the BASIS technique during endovascular therapy, which includes balloon angioplasty under the protection of a stent retriever for blood vessel reopening. Surgeons follow a stepwise procedure involving microcatheter placement, balloon inflation, thrombus removal with suction techniques, and repeated angiographic checks to ensure clearance of blockages. The study has no control group and allows different remedial treatments as needed during the procedure. Participants will be monitored for complications such as branch occlusion, vessel dissection, rupture, thrombus displacement, and symptomatic intracranial hemorrhage. Key outcomes measured include modified Rankin Scale (mRS) scores at 90 days and first pass effect during the approximately three-hour surgery. Follow-up over three months records mortality, functional recovery, and residual vessel narrowing. The study tracks detailed intraoperative and postoperative data to assess the technique's impact on safety and prognosis.