This research is being done to investigate the ability of an experimental imaging method - transesophageal magnetic resonance imaging (TEMRI), to detect the change in aortic atherosclerotic plaque burden and morphology between patients on high dose cholesterol lowering medications and patients on standard dose cholesterol lowering medications. This study will use TEMRI to see how atherosclerosis (cholesterol build up) changes with cholesterol lowering medications. This study will also investigate whether these cholesterol-lowering medications will change levels of blood tests, called inflammatory markers, in patients' blood. People with atherosclerosis may join this study. This study will also store blood samples for future studies of cardiac diseases; no gene testing will be done.

开始日期2000-08-01

申办/合作机构

The Johns Hopkins University

[+2]

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0 项与 Clearpoint Neuro, Inc. 相关的专利（医药）

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项与 Clearpoint Neuro, Inc. 相关的文献（医药）

2024-03-01·Journal of Neurosurgery

Preclinical assessment of a noncooled MR thermometry–based neurosurgical laser therapy system

Article

作者: Knappe, Verena ; Schneider, Lonnie ; Floyd, Candace L. ; Rossman, Aaron ; Osswald, Christian R. ; Singh, Hargunbir ; Rolston, John D.

OBJECTIVEMRI-guided laser interstitial thermal therapy (MRgLITT) has recently gained interest as an ablative stereotactic procedure for intractable epilepsy, movement disorders, and brain tumors. Conventionally, a LITT system consists of a laser generator and cooled laser applicator, which is a fiber optic core surrounded by a sheath through which cooled fluid is pumped. However, this footprint can make the system bulky and nonmobile, limit the maximum depth of targeting, and increase the chances of breakdown. Herein, the authors conduct a preclinical assessment of a noncooled MRgLITT system in a porcine model.METHODSThree-tesla MRI was used to guide the in vivo placement of noncooled laser applicators in the porcine brain. The study consisted of a survival arm and terminal arm. The laser was activated at a power of 4–7 W for ≤ 180 seconds. Temperature changes were monitored using the MR thermometry software ThermoGuide in the survival arm (n = 5) or both ThermoGuide software and adjacently inserted thermal probes in the terminal arm (n = 3). Thermal damage was determined by the software using the temperature-time relationship of cumulative equivalent minutes at 43°C (CEM43). Temperatures calculated by the software were compared with those recorded by the temperature probes. The dimensions of thermal damage thresholds (TDTs; 2–9, 10–59, 60–239, ≥ 240 CEM43 isolines) given by MR thermometry were compared with the dimensions of irreversible damage on histopathological analysis.RESULTSThere was a strong correlation between temperature recordings by ThermoGuide and those by thermal probes at both 4 mm (r = 0.96) and 8 mm (r = 0.80), with a mean absolute error of 0.76°C ± 2.13°C and 0.17°C ± 1.65°C at 4 and 8 mm, respectively. The area of 2–9 CEM43 was larger than the area of irreversible damage seen on histopathological analysis. The dimensions of the 10 and 60 CEM43 correlated well with dimensions of the lesion on histopathological analysis. A well-defined border (≤ 1 mm) was observed between the area of irreversible damage and healthy brain tissue.CONCLUSIONSThis preclinical assessment showed that the noncooled LITT system was able to precisely reach the target and create well-defined lesions within a margin of safety, without any adverse effects. MR thermometry software provided an accurate near-real-time temperature of the brain tissue, and dimensions of the lesion as visualized by the software correlated well with histopathological findings. Further studies to test the system’s efficacy and safety in human subjects are in progress.

2023-04-11·Operative Neurosurgery

A Modified Technique for Interventional MRI-Guided Deep Brain Stimulation Using the ClearPoint System

Article

作者: Brougham, Jared ; Gupta, Shruti ; Harland, Tessa A. ; Strahan, Jessica ; Wilden, Jessica ; Hefner, Matthew

BACKGROUND:Deep brain stimulation (DBS) is increasingly performed using imaging-based techniques, which are rapidly evolving to minimize invasiveness and use limited resources efficiently.OBJECTIVE:To describe a modified surgical technique for interventional MRI-guided stereotactic procedures using ClearPoint.METHODS:A total of 160 consecutive DBS cases for Parkinson disease (48%), essential tremor (44%), dual essential tremor/Parkinson disease (3%), and dystonia (5%) were studied. Technique modifications included (1) preplanning the target/trajectory, (2) adoption of a smaller incision and new stereotactic frame, (3) changing the sequence of surgical steps, aiming to final target PRIOR to drilling, (4) reducing burr hole size, (5) minimizing dural opening, and (6) anchoring leads with a bio cement/plate combination in lieu of commercial devices. Demographic data, radial error, number of passes, and case time were prospectively collected while complications and clinical outcomes were retrospectively assessed.RESULTS:One hundred and forty seven DBS patients had 262 total leads placed. Average radial error was 0.41 mm bilaterally. Seventy nine leads had error <0.2 mm; 6 leads had error >1 mm. Pin-to-stylet insertion time, pin-to-frame removal time, and pin-to-room departure time were 2 hours 1 minute, 2 hours 48 minutes, and 3 hours 16 minutes, respectively, and were significantly shorter than those obtained with the original ClearPoint technique for our first 150 DBS cases (P < .0001). Complications included infection with hardware removal (2.5%) and superficial hemorrhage without permanent neurological sequelae (1.9%).CONCLUSION:The modified ClearPoint technique maintains accuracy while reducing invasiveness and MRI time. This workflow can be expanded to other applications, including laser interstitial thermal therapy and gene delivery.

2023-01-01·Frontiers in molecular neuroscience

Pre-clinical delivery of gene therapy products to the cerebrospinal fluid: challenges and considerations for clinical translation.

Review

作者: Salegio, Ernesto A ; Hancock, Kelli ; Korszen, Stephanie

While the majority of gene therapy studies in neurological indications have focused on direct gene transfer to the central nervous system (CNS), there is growing interest in the delivery of therapeutics using the cerebrospinal fluid (CSF) as a conduit. Historically, direct CNS routes-of-administration (RoAs) have relied on tissue dynamics, displacement of interstitial fluid, and regional specificity to achieve focal delivery into regions of interest, such as the brain. While intraparenchymal delivery minimizes peripheral organ exposure, one perceived drawback is the relative invasiveness of this approach to drug delivery. In this mini review, we examine the CSF as an alternative RoA to target CNS tissue and discuss considerations associated with the safety of performing such procedures, biodistribution of therapeutics following single administration, and translation of findings given differences between small and large animals. These factors will help delineate key considerations for translating data obtained from animal studies into clinical settings that may be useful in the treatment of neurological conditions.

项与 Clearpoint Neuro, Inc. 相关的新闻（医药）

2024-06-20

·BioSpace

Parkinson's Disease Clinical Trial Uses Intraoperative MRI to Guide Precision Implantation of Patients' Own Autologous Replacement Neurons

Aspen Neuroscience Announces MRI-Guided Transplantation Approach for ASPIRO Clinical Trial with the ClearPoint® Navigation System SAN DIEGO, June 20, 2024 /PRNewswire/ -- Aspen Neuroscience Inc. announced today that it is utilizing the MRI-guided ClearPoint® Navigation System for all patients enrolled in the recently launched ASPIRO Phase 1/2a clinical trial for transplantation of dopaminergic neuron precursor cells (DANPCs) in patients with Parkinson's Disease (PD). ASPIRO is an open label trial to assess safety and tolerability of ANPD001, an autologous, dopaminergic neuron cell replacement therapy for participants with moderate to severe PD. "By the time of diagnosis, it is common for people with Parkinson's to have lost the majority of dopaminergic neurons, leading to progressive loss of motor and neurological function," explained Edward Wirth III, MD, PhD, Chief Medical Officer of Aspen Neuroscience. "To replace these lost cells, we must target a very specific area of the brain with a high degree of surgical precision. Utilizing the latest advances in intraoperative MRI guided techniques provided by the ClearPoint system, the patient's new cells are transplanted, one microliter at a time, to the exact area where they are most needed." These DANPCs are transplanted to the putamen, a small section located in the mid-brain, in a single transplantation procedure under ClearPoint MRI guidance, using the SmartFlow® Cannula and the Aspen Metered Delivery Syringe (AMDS). This surgical approach was developed by the trial's lead neurosurgeon and renowned MRI-guided stereotactic neurosurgery pioneer Paul Larson, MD, FAANS, professor of neurosurgery at the University of Arizona College of Medicine – Tucson and neurosurgeon at Banner University Medical Center, Tucson. "We are honored to be a part of such an important and groundbreaking study to demonstrate the ability of personalized medical approaches for treating neurodegenerative conditions," explained Jeremy Stigall, Chief Business Officer at ClearPoint Neuro. "The ClearPoint Neuro Navigation System is being used successfully in more than 80 centers worldwide for multiple applications, and investigational gene and cell therapy trials. We are thrilled to partner with Aspen to support the first multi-center trial for an autologous neuron replacement therapy for Parkinson's disease." The ClearPoint System utilizes intraprocedural MR images to provide real-time navigational instruction for the neurosurgeon, and confirmation that the desired anatomical target has been reached with submillimetric accuracy. Combined with The SmartFlow® Cannula, which is less than 2 millimeters in diameter, this allows minimally-invasive delivery of therapeutic agents in a patient's brain. About the ASPIRO Trial The Autologous-derived Study of a Parkinson's Investigational Regenerative therapy in an Open-label trial (ASPIRO) is a Phase 1/2a clinical trial to assess the safety, tolerability, and potential efficacy of ANPD001 in patients with moderate to severe Parkinson's disease. The dose escalation study includes patients 50–70 years of age and excludes patients with cognitive impairment and other comorbidities that could preclude treatment. All enrolled patients are under the care of a movement disorder specialist. The primary study endpoint is safety and tolerability of ANPD001. Secondary endpoints include improvement in "on" time, when patients experience periods of symptom control, and improvements in motor symptoms and quality of life based on standard Parkinson's disease rating scales. About ANPD001 ANPD001 is an investigational autologous neuronal replacement therapy being studied as a regenerative therapy for PD. Aspen's personalized approach means that patients do not require immunosuppressive drugs to counteract the body's immune response against foreign cells. Aspen's manufacturing process starts from a small sample of the patient's own skin cells, followed by reprogramming to induced pluripotent stem cells (iPSCs) and then differentiation of the iPSCs into DANPCs. These DANPCs are transplanted into the putamen, replacing cells that were lost or damaged due to disease. The quality of each person's cells is assessed at every manufacturing stage using Aspen's proprietary machine learning-based genomics tests. About ClearPoint Neuro ClearPoint Neuro, Inc. (NASDAQ: CLPT) is a device, cell, and gene therapy-enabling company offering precise navigation to the brain and spine. The Company uniquely provides both established clinical products as well as pre-clinical development services for controlled drug and device delivery. The Company's flagship product, the ClearPoint Neuro Navigation System, has FDA clearance and is CE-marked. ClearPoint Neuro is engaged with healthcare and research centers in North America, Europe, Asia, and South America. The Company is also partnered with the most innovative pharmaceutical / biotech companies, academic centers, and contract research organizations, providing solutions for direct CNS delivery of therapeutics in pre-clinical studies and clinical trials worldwide. To date, thousands of procedures have been performed and supported by the Company's field-based clinical specialist team, which offers support and services to our customers and partners worldwide. For more information, please visit . About Aspen Neuroscience Headquartered in San Diego, Aspen Neuroscience, Inc. is a clinical development-stage, private company focused on autologous regenerative medicine. The company's patient-derived iPSC platform is used to create personalized therapies to address diseases with high unmet medical needs, beginning with autologous neuron replacement for Parkinson's disease. Aspen combines cell biology with the latest machine learning and genomic approaches to investigate patient-specific, restorative cell treatments. The company has developed a best-in-class platform to create and optimize pluripotent-derived cell therapies, which includes in-house bioinformatics, manufacturing and quality control. For more information and important updates, please visit  . Company Codes: NASDAQ-NMS:CLPT

细胞疗法临床研究

2024-04-29

·Mass Device

ClearPoint Neuro wins FDA clearance for neuro laser therapy accessory

It marks the second new product introduction in 2024 for the company, with its stereotactic guidance system garnering clearance in January. The Prism system features the only non-cooled laser applicator on the market, the company said. Its next-generation laser applicator technology eliminates the need for external cooling. This simplifies setup, reduces power and ablation time and lessens imaging artifact for more efficient workflows. ClearPoint Neuro designed its Prism bone anchor accessory for use with commercially available stereotactic systems. These systems work for intracranial and neurosurgical procedures. Such procedures require accurate positioning of compatible small surgical instruments or accessories in the cranium, brain or nervous systems. The anchor provides short-term fixation and positioning of those instruments or accessories under image guidance. Chris Osswald, director, global segment leader for laser therapy, said the clearance supports continued expansion into the OR. “We are pleased to round out our laser portfolio and look forward to working with hospitals in the United States interested in the Prism System that may have challenges with MRI access,” Osswald said. “We plan to begin our limited market release on schedule here in the second quarter, with a full market release in the second half of 2024.”

2024-04-29

·BioSpace

ClearPoint Neuro Announces FDA Clearance of Prism Bone Anchor Accessory

SOLANA BEACH, Calif., April 29, 2024 (GLOBE NEWSWIRE) -- ClearPoint Neuro, Inc. (Nasdaq: CLPT) (the “Company”), a global device, cell, and gene therapy-enabling company offering precise navigation to the brain and spine, today announced it has received 510(k) clearance for its Prism Bone Anchor Accessory. This clearance marks the Company’s second new product introduction within the first four months of 2024. “Similar to the recent launch of our SmartFrame OR platform, the introduction of the Prism Bone Anchor Accessory for use with the ClearPoint Prism Neuro Laser Therapy System supports our continued expansion beyond the MRI into the operating room. This is where most laser applicators are placed today,” stated Chris Osswald, PhD, Director, Global Segment Leader for Laser Therapy at ClearPoint Neuro. “We are pleased to round out our laser portfolio and look forward to working with hospitals in the United States interested in the Prism System that may have challenges with MRI access. We plan to begin our limited market release on schedule here in the second quarter, with a full market release in the second half of 2024.” The Prism Bone Anchor Accessory is intended to be used with commercially available stereotactic systems for intracranial and neurosurgical procedures which require accurate positioning of compatible small surgical instruments or accessories in the cranium, brain or nervous systems. It is designed to provide short-term fixation and positioning of compatible neurosurgical instruments or accessories under image-guidance. About ClearPoint Neuro ClearPoint Neuro is a device, cell, and gene therapy-enabling company offering precise navigation to the brain and spine. The Company uniquely provides both established clinical products as well as pre-clinical development services for controlled drug and device delivery. The Company’s flagship product, the ClearPoint Neuro Navigation System, has FDA clearance and is CE-marked. ClearPoint Neuro is engaged with healthcare and research centers in North America, Europe, Asia, and South America. The Company is also partnered with the most innovative pharmaceutical/biotech companies, academic centers, and contract research organizations, providing solutions for direct CNS delivery of therapeutics in pre-clinical studies and clinical trials worldwide. To date, thousands of procedures have been performed and supported by the Company’s field-based clinical specialist team, which offers support and services to our customers and partners worldwide. For more information, please visit Forward-Looking Statements This press release contains forward-looking statements within the context of the federal securities laws, which may include the Company’s expectations for the future performance, market, and revenue of its products. These forward-looking statements are based on management’s current expectations and are subject to the risks inherent in the business, which may cause the Company's actual results to differ materially from those expressed in or implied by forward-looking statements. Particular uncertainties and risks include those relating to: global and political instability, supply chain disruptions, labor shortages, and macroeconomic and inflationary conditions; future revenue from sales of the Company’s products and services; the Company’s ability to market, commercialize and achieve broader market acceptance for new products and services offered by the Company; the ability of our biologics and drug delivery partners to achieve commercial success, including their use of the Company’s products and services in their delivery of therapies; the Company’s expectations, projections and estimates regarding expenses, future revenue, capital requirements, and the availability of and the need for additional financing; the Company’s ability to obtain additional funding to support its research and development programs; the ability of the Company to manage the growth of its business; the Company’s ability to attract and retain its key employees; and risks inherent in the research, development, and regulatory approval of new products. More detailed information on these and additional factors that could affect the Company’s actual results are described in the “Risk Factors” section of the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, which has been filed with the Securities and Exchange Commission, and the Company’s Quarterly Report on Form 10-Q for the three months ended March 31, 2024, which the Company intends to the Securities and Exchange Commission on or before May 15, 2024. The Company does not assume any obligation to update these forward-looking statements. A photo accompanying this announcement is available at Contact: Media Contact: Jacqueline Keller, Vice President of Marketing (888) 287-9109 ext. 4 info@clearpointneuro.com Investor Relations: Danilo D’Alessandro, Chief Financial Officer (888) 287-9109 ext. 3 ir@clearpointneuro.com The ClearPoint Prism® Neuro Laser Therapy System The ClearPoint Prism® Neuro Laser Therapy System

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100 项与 Clearpoint Neuro, Inc. 相关的转化医学

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