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Open Actively Recruiting

A Study to Evaluate the Safety and Tolerability of SAGE-718 in Participants With Huntington's Disease

The primary purpose of the study is to evaluate the safety and tolerability of SAGE-718 softgel lipid capsule in participants with Huntington's Disease (HD)

Phase: Phase III
Primary Purpose: Treatment
Gender: All
Age Group: Adults
Contact: Aaron Fisher
Open Actively Recruiting

Dementia Research, Education, and Advancement in Los Angeles (DREAM-LA)

This study has not yet been registered on ClinicalTrials.gov, which is currently a pre-requisite for display of detailed eligibility criteria.

Age Group: Adults
Contact: Sydney Kilgore
Investigator: Keith Vossel, MD
Open Actively Recruiting

A Study to Assess the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of ION717.

The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of intrathecal (IT) delivery of ION717.

Phase: Phase 1/Phase 2
Primary Purpose: Treatment
Gender: All
Age Group: Adults
Contact: Aaron Fisher
Open Actively Recruiting

A Study to Learn About the Safety of BIIB080 and Whether it Can Improve Symptoms of Participants With Mild Cognitive Impairment Due to Alzheimer's Disease (AD) or Mild AD Dementia Between 50 to 80 Years of Age

In this study, researchers will learn more about a study drug called BIIB080. The study will focus on participants with mild cognitive impairment or mild dementia due to AD.

The main question researchers are trying to answer is if BIIB080 can slow the worsening of AD more than placebo. It will focus on what dose of BIIB080 slows worsening of AD the most. To help answer this question, researchers will use the Clinical Dementia Rating-Sum of Boxes, also known as the CDR-SB. - Clinicians use the CDR-SB to measure several categories of dementia symptoms. - The results for each category are added together for a total score. Lower scores are better. Researchers will also learn more about the safety of BIIB080. The study will be split into 2 parts. The 1st part is the Placebo-Controlled Period. The 2nd part is the Long-Term Extension Period. The 2nd part of the study will help researchers learn about the long-term safety of BIIB080, and how it affects the participant's daily life, thinking, and memory abilities in the longer term. A description of how the study will be done is given below. - After screening, participants will first receive either a low dose or high dose of BIIB080, or a placebo, as an injection into the fluid around the spinal cord (cerebrospinal fluid). A placebo looks like the study drug but contains no real medicine. - Participants will receive BIIB080 or placebo once every 12 weeks or 24 weeks. - After 76 weeks of treatment in the Placebo-Controlled Period, eligible participants will move onto the Extension Treatment period, which will last 96 weeks. - In the extension period, participants who received placebo will be switched to high dose BIIB080 every 12 or 24 weeks. - Participants may be in the study for up to 201 weeks, or about 4 years. This includes the screening and follow-up periods. - Participants can continue to take certain medications for AD. Participants must be on the same dose of medication for at least 8 weeks before the screening period. - After the screening period, most participants will visit the clinic every 6 weeks.

Phase: Phase 2
Primary Purpose: Treatment
Gender: All
Age Group: Adults
Contact: Roberto Hernadez
Open Actively Recruiting

A Study to Evaluate the Effect of Venglustat Tablets on Left Ventricular Mass Index in Male and Female Adult Participants With Fabry Disease

This is an 18-month, multicenter, randomized, active-control, parallel-group Phase 3 study, in which participants will be randomized to venglustat versus standard of care therapy (agalsidase alfa, agalsidase beta, or migalastat) to evaluate the effect of venglustat on left ventricular mass index (LVMI) in adult participants with Fabry disease and left ventricular hypertrophy.

- Study visits will take place approximately every 3 to 6 months - Participants who complete the randomized period may continue to the long-term extension (LTE) to receive venglustat for up to additional 34 months with the total study duration up to 4.4 years maximum.

Phase: Phase 3
Primary Purpose: Treatment
Gender: All
Age Group: Adults
Contact: Josh Ooka
Open Actively Recruiting

Photobiomodulation for Lower Back Pain Post Spinal Fusion and Decompression Surgery

After spinal fusion and decompression surgery there is a possible risk of developing chronic back pain. After surgery there is typically inflammation around the operation site and this inflammation can be painful and debilitating to patients.

Many possible treatment plans have been incorporated to assist the patient with recovery - notably medications, physical therapy, and braces. However, few studies have looked at laser diodes that utilize high-power laser lights that are aimed at decreasing pain and inflammation. Investigators aim to look compare patients using a back brace with laser diodes within versus those who wear a normal brace used as a placebo. Investigators will also assess the patient's surgical wound to monitor the progression of wound healing while using the brace.

Phase: N/A
Primary Purpose: Treatment
Gender: All
Age Group: Adults
Open Actively Recruiting

Analysis of Chronic Subdural Hematoma (cSDH) and Related Tissues

This study has not yet been registered on ClinicalTrials.gov, which is currently a pre-requisite for display of detailed eligibility criteria.

Age Group: Adults
Contact: Natalie Xu
Open Actively Recruiting

Electrophysiological correlates of opioid use and its associated changes in affect using direct invasive human neuronal recordings

This study has not yet been registered on ClinicalTrials.gov, which is currently a pre-requisite for display of detailed eligibility criteria.

Age Group: Adults
Contact: WENXIN WEI
Open Actively Recruiting

Zeit Alert for Stroke at Home (ZASH) Protocol

This is a single-arm, observational, feasibility study to evaluate if the Halo Alert System can be used in the future to detect stroke events in individuals at risk for stroke wearing the Halo Alert System overnight.

Gender: All
Age Group: Adults
Contact: Elizabeth Cruz
Open Actively Recruiting

Randomized Therapy In Status Epilepticus

This study will evaluate the effectiveness and safety of an investigational product (IP), intravenous (IV) ganaxolone, to treat participants with status epilepticus (SE).

Phase: Phase III
Primary Purpose: Treatment
Gender: All
Age Group: Adults, Children
Contact: Adreanne Rivera
Investigator: Paul M. Vespa, MD
Open Actively Recruiting

A Study to Test Asundexian for Preventing a Stroke Caused by a Clot in Participants After an Acute Ischemic Stroke or After a High-risk Transient Ischemic Attack, a So-called Mini Stroke

Researchers are looking for a better way to prevent an ischemic stroke which occurs when a blood clot travelled to the brain in people who within the last 72 hours had:

- an acute stroke due to a blood clot that formed outside the heart (acute non-cardioembolic ischemic stroke), or - TIA/mini-stroke with a high risk of turning into a stroke (high-risk transient ischemic attack), and who are planned to receive standard of care therapy. Acute ischemic strokes or TIA/mini-stroke result from a blocked or reduced blood flow to a part of the brain. They are caused by blood clots that travel to the brain and block the vessels that supply it. If these blood clots form elsewhere than in the heart, the stroke is called non-cardioembolic. People who already had a non-cardioembolic stroke are more likely to have another stroke. This is why they are treated preventively with an antiplatelet therapy, the current standard of care. Antiplatelet medicines prevent platelets, components of blood clotting, from clumping together. Anticoagulants are another type of medicine that prevents blood clots from forming by interfering with a process known as coagulation (or blood clotting). The study treatment asundexian is a new type of anticoagulant currently under development to provide further treatment options. Asundexian aims to further improve the standard of care without increasing the risk of bleeding. The main purpose of this study is to learn whether asundexian works better than placebo at reducing ischemic strokes in participants who recently had a non-cardioembolic ischemic stroke or TIA/mini-stroke when given in addition to standard antiplatelet therapy. A placebo is a treatment that looks like a medicine but does not have any medicine in it. Another aim is to compare the occurrence of major bleeding events during the study between the asundexian and the placebo group. Major bleedings have a serious or even life-threatening impact on a person's health. Dependent on the treatment group, the participants will either take asundexian or placebo as tablets once a day for at least 3 months up to 31 months. Approximately every 3 months during the treatment period, either a phone call or a visit to the study site is scheduled on an alternating basis. In addition, one visit before and up to two visits after the treatment period are planned. During the study, the study team will: - Check vital signs such as blood pressure and heart rate - Examine the participants' heart health using an electrocardiogram (ECG) - Take blood samples - Ask the participants questions about how they are feeling and what adverse events they are having. An adverse event is any medical problem that a participant has during a study. Doctors keep track of all adverse events that happen in studies, even if they do not think the adverse events might be related to the study treatments. In addition, the participants will be asked to complete a questionnaire on quality of life at certain time points during the study.

Phase: Phase 3
Primary Purpose: Treatment
Gender: All
Age Group: Adults
Contact: Sucheta Waghmare
Open Actively Recruiting

Cerebrovascular Factors Impacting Intracranial Pressure Regulation: Ultrasound measurement of intracranial and cervical blood flow and its relationship to intracranial pressure.

This study has not yet been registered on ClinicalTrials.gov, which is currently a pre-requisite for display of detailed eligibility criteria.

Age Group: Adults
Contact: Natalie Xu
Open Actively Recruiting

An Open-label Study to Evaluate the Safety, Tolerability, and Efficacy of Subcutaneous Zilucoplan in Participants With Generalized Myasthenia Gravis Who Were Previously Receiving Intravenous Complement Component 5 Inhibitors

The purpose of the study is to evaluate the safety and tolerability of switching from intravenous (IV) complement component 5 (C5) inhibitors to subcutaneous (SC) Zilucoplan in study participants with generalized myasthenia gravis (gMG)

Phase: Phase 3
Primary Purpose: Treatment
Gender: All
Age Group: Adults
Contact: UMMULWARA QASIM
Open Actively Recruiting

The Relationship of Hate to Dehumanization: An Exploration in Neurotypical and Frontotemporal Dementia

This study has not yet been registered on ClinicalTrials.gov, which is currently a pre-requisite for display of detailed eligibility criteria.

Age Group: Adults
Contact: Elvira Jimenez
Open Actively Recruiting

A Study to Verify the Clinical Benefit of Aducanumab in Participants With Early Alzheimer's Disease

The primary objective of this study is to verify the clinical benefit of monthly doses of aducanumab in slowing cognitive and functional impairment as measured by changes in the Clinical Dementia Rating Scale Sum of Boxes (CDR-SB) score as compared with placebo in participants with early Alzheimer's disease.

Phase: Phase III/IV
Primary Purpose: Treatment
Gender: All
Age Group: Adults
Contact: LAUREN GARCIA

A Study to Assess the Safety and Efficacy of Vatiquinone in Participants With Friedreich Ataxia

The primary objective of this study is to assess the long-term safety of vatiquinone in participants with Friedreich ataxia (FA) previously exposed to vatiquinone in Study PTC743-NEU-003-FA (NCT04577352) or Study PTC743-NEU-005-FA.

Phase: Phase 3
Primary Purpose: Treatment
Gender: All
Age Group: Adults, Children
Contact: Aaron Fisher
Open Actively Recruiting

Music stimulation to improve cognition

This study has not yet been registered on ClinicalTrials.gov, which is currently a pre-requisite for display of detailed eligibility criteria.

Age Group: Adults
Contact: Karen Elrayes
Investigator: Keith Vossel, MD
Open Actively Recruiting

Cognitive Outcomes and Neurodegeneration Caused by IschEmic Vascular Events: A Preliminary Observational Clinical Study to Prepare for Reparative Brain Therapies

This study has not yet been registered on ClinicalTrials.gov, which is currently a pre-requisite for display of detailed eligibility criteria.

Age Group: Adults
Contact: Marissa Thirion
Open Actively Recruiting

A Study of TAK-341 in Treatment of Multiple System Atrophy

The main aim is to see how TAK-341 works after 52 weeks in participants with multiple system atrophy as measured by the Unified Multiple System Atrophy Rating Scale Part I (UMSARS).

The study will enroll approximately 138 patients. Participants will receive a total of 13 intravenous infusions every 4 weeks approximately, these may be either of TAK-341 or placebo, after each infusion some blood samplings will be taken and other assessments completed. This trial will be conducted in North America, Europe and Asia.

Phase: Phase 2
Primary Purpose: Treatment
Gender: All
Age Group: Adults
Contact: Aaron Fisher
Open Actively Recruiting

Masupirdine for the Treatment of Agitation in Dementia of the Alzheimer's Type

This study will be conducted to evaluate the efficacy, safety, tolerability, and pharmacokinetics of masupirdine compared to placebo for the treatment of agitation in participants with dementia of the Alzheimer's type.

Phase: Phase III
Primary Purpose: Treatment
Gender: All
Age Group: Adults
Contact: Lorena Macias
Investigator: Pauline Wu, DO