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Stroke clinical trials

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NCT ID: NCT05437055 Not yet recruiting - Clinical trials for Acute Ischemic Stroke

THUNDER: Acute Ischemic Stroke Study With the Penumbra System® Including Thunderbolt™ Aspiration Tubing

Start date: August 2022
Phase: N/A
Study type: Interventional

The objective of this study is to demonstrate the safety and efficacy of the Penumbra System including Thunderbolt Aspiration Tubing (Thunderbolt) in a population presenting with acute ischemic stroke (AIS) secondary to intracranial large vessel occlusion (LVO) who are eligible for mechanical thrombectomy.

NCT ID: NCT05436366 Not yet recruiting - Healthy Clinical Trials

Soleus Loading Response During Walking

Start date: June 30, 2022
Phase: N/A
Study type: Interventional

Stroke survivors experience motor deficits, weak voluntary muscle activations, and low weight-bearing capacity that impair ambulation. Restoring motor function is a priority for people post-stroke, whose gait patterns are slow, and metabolically inefficient. The role of the ankle is crucial for locomotion because it stores mechanical energy throughout the stance phase, leading to a large activation of plantarflexor muscles during push-off for propulsion. After a stroke, paretic plantarflexors undergo changes in their mechanics and activation patterns that yield diminished ankle power, propulsion, and gait speed. Recovery of lost plantarflexor function can increase propulsion and mitigate unnatural gait compensations that occur during hemiparetic walking. In the stance phase, dorsiflexion is imposed at the ankle and the plantarflexors are loaded, which results in excitation of group Ia and II afferents, and group Ib afferents. Load sensing Ib afferents are active in mid-late stance, and through spinal excitatory pathways, reinforces the activation of plantarflexors and propulsive force generation at the ankle. Targeting the excitability of the load sensitive Ib excitatory pathway, propulsive soleus activity and resulting force generation (and thereby gait speed) can be improved after stroke. The long-term research goal is to develop a novel hybrid gait paradigm integrating operant conditioning and powered wearable devices to advance neuro-behavioral training and enhance locomotor ability after stroke. The overall objectives are to 1) modulate the soleus muscle loading response within the stance phase, and 2) develop a dynamic protocol to operantly condition the soleus response in stroke survivors. The central hypothesis is that enhancing the soleus loading response in mid-late stance phase through operant up-conditioning can increase plantarflexor power and forward propulsion after stroke. In working towards attaining the research objective and testing the central hypothesis, the objective of this pilot study is to modulate the soleus loading response in the stance phase during treadmill walking. The specific aims in this study are to 1) apply ankle perturbations in mid-late stance phase combining a control algorithm and a powered device to characterize the changes in soleus EMG between perturbed and unperturbed (i.e., when no perturbations are applied) step cycles in 15 able-bodied individuals; and 2) determine the feasibility of the wearable ankle device and its algorithm in 5 participants with hemiparesis and gait deficits due to a stroke. The testing of the device and its algorithm will provide foundational evidence to adjust the soleus stimuli continuously and reliably, and develop the new walking operant conditioning protocol for stroke survivors. An expected outcome in this pilot is to lay the groundwork to develop the soleus up-conditioning protocol as a potential strategy to improve paretic leg function. If successfully developed, this new protocol proposed in a subsequent study will be the first neurobehavioral training method that targets spinal load-sensitive pathways to improve ankle plantarflexor power and forward propulsion after stroke.

NCT ID: NCT05429476 Not yet recruiting - Clinical trials for Stroke, Acute Ischemic

EXtending the Time Window for Thrombolysis in Posterior Circulation Stroke Without Early CT Signs

Start date: June 29, 2022
Phase: Phase 3
Study type: Interventional

The primary hypothesis being tested in this trial is that ischemic stroke patients in posterior circulation at 4.5 - 24 hours post onset of stroke will have improved clinical outcomes when given intravenous tissue plasminogen activator (tPA) compared to standard care.

NCT ID: NCT05429424 Not yet recruiting - Stroke Clinical Trials

Complementary Acupuncture Treatment of Dysphagia in Stroke

Start date: August 1, 2022
Phase: N/A
Study type: Interventional

A Taiwanese study pointed out that stroke patients who have language barriers, dysphagia, and aspiration pneumonia are more likely to suffer from prolonged hospitalization. Improvements in dysphagia and subsequent complications in patients should be effective in reducing hospital stays and improving the quality of long-term care. In view of clinical medical needs and policy trends, this study aims to explore the efficacy of using traditional Chinese medicine to treat cerebral apoplexy sequelae in Taiwan. It is expected that through (1) exploration of real-world data analysis, combined with the advantages of Taiwan's biomedical database, data exploration will be carried out to provide big data (2) Multi-center prospective randomized clinical trials, providing clinical evidence of the highest level of evidence in empirical medicine.

NCT ID: NCT05429255 Not yet recruiting - Stroke Clinical Trials

Aerobic Exercise in Patients With Stroke

Start date: July 2022
Phase: N/A
Study type: Interventional

Comparison of aerobic training to exergame training in people with chronic mild/moderate stroke

NCT ID: NCT05427422 Not yet recruiting - Motor Neuropathy Clinical Trials

Stroke Recovery Research Based on EEG-fMRI

Start date: June 30, 2022
Study type: Observational

This study is aimed to investigate the post-stroke motor recovery of patients with ischemic stroke based on their neural features extracted from EEG-fMRI data.

NCT ID: NCT05425615 Not yet recruiting - Stroke Clinical Trials

Language Processing and TMS

Start date: June 2022
Phase: N/A
Study type: Interventional

This study will examine the effect of TMS on people with stroke and aphasia as well as healthy individuals.

NCT ID: NCT05421910 Not yet recruiting - Stroke Clinical Trials

Clinical Feasibility of ROBERT-SAS in Severely Impaired Stroke Patients

Start date: June 20, 2022
Phase: N/A
Study type: Interventional

Robotic training can be used to provide intensive training during the (early phases of) rehabilitation of a stroke. ROBERT®-SAS training is designed to create an active and intensive training tool for the rehabilitation of the lower extremity of stroke patients. Currently this has only be tested in a lab-based setting, which showed that is was feasible and could be executed while still being comfortable for the patient. The next step will be implementing the device in a clinical setting. Therefore, aims the current study to assess the feasibility of ROBERT®-SAS training in clinical setting, in acute stroke patients.

NCT ID: NCT05420857 Not yet recruiting - Stroke Clinical Trials

Effects of Biofeedback on Walking Speed Post-stroke

Start date: July 1, 2022
Phase: N/A
Study type: Interventional

Stroke is the leading cause of serious long-term disability in the United States. Walking speed is related to stroke severity and how well someone can return to community life. Biofeedback is a useful method for increasing walking speed in persons post-stroke, however, these methods are typically limited to laboratory settings. The objective of this research is to determine the short-term response and training potential of a novel, wearable device that provides visual feedback of hip extension during unconstrained over ground walking. The aims of this study are to 1) determine short-term effects of visual biofeedback on biomechanical outcomes, 2) determine the short-term effects of visual biofeedback on gait symmetry during overground walking in individuals post-stroke. The investigators hypothesize that biomechanical and spatiotemporal outcomes will improve following training with the wearable biofeedback device. To assess these aims, participants' gait biomechanics will be assessed pre- and post-training with the biofeedback device as well as 24-hours following the training. Walking speed (primary outcome) as well as hip extension angle, propulsive force, step width, step length, and step time will be assessed to determine changes in performance with use of the device. By understanding short-term responses to this novel training paradigm, research can begin assessing the potential of wearable biofeedback devices in improving gait in persons post-stroke. Should this training prove successful, this study will provide the necessary feasibility data to motivate a larger scale, case-control clinical trial to determine efficacy of the device and training.

NCT ID: NCT05419193 Not yet recruiting - Stroke Clinical Trials

PROpranolol for Cerebral Hemorrhage-ASsociated pnEumonia (PRO-CHASE)

Start date: July 3, 2022
Phase: Phase 3
Study type: Interventional

Stroke-associated pneumonia (SAP) is a grave complication of stroke and one of the most important predictors for patients' poor outcomes. Stroke associated pneumonia and other infections limit the overall efficacy of stroke management. Increasing evidence suggests that sympathetic nervous system activity contributes to post stroke immunosuppression and emergence of infections. This study is designed to test the safety and efficacy of an adrenergic β receptor blocker propranolol in reducing SAP in hemorrhagic stroke patients, in multi-center, randomized, placebo controlled, double blinded fashion.