Active clinical trials for "Aphonia"

The investigators will conduct a pilot experiment for a novel and personalized method for voice restoration using machine learning applied to surface EMG (sEMG) signal from articulatory muscles of the face and the neck allowing recognition of silent speech. The investigators predict that the use novel personalized method for voice restoration will be feasible and successful for patients.

Patients with tracheostomy who are on and off of mechanical ventilation initially lose the ability to speak, and the use of one-way speaking valves (OWSV) is one method of restoring speech in these patients. Patients with tracheostomy who experience loss of speech report frustration and feelings of confinement from patients' communication impairment, therefore investigators would like to restore speech in these patients as soon as it is safe to do so. However, there is currently little known in the literature about the timing of the use of OWSV in patients with tracheostomy. Therefore, the investigators propose a pre-test post-test clinical trial pilot study to investigate the safety of early use of OWSV in patients undergoing a percutaneous tracheostomy. Study aims are to identify patients who would benefit from the early use of OWSV and to determine the effects of early use of OWSV on speech and clinical outcomes. To achieve these aims, patients who undergo percutaneous tracheostomy will be screened, and patients meeting screening criteria will be randomized into intervention and control groups. The intervention group will receive early speech-language pathology (SLP) evaluation and OWSV trial at 12-24 hours following tracheostomy procedure, and the control group will receive standard SLP evaluation and OWSV trial at 48-60 hours following tracheostomy procedure. Intervention and control groups will been compared on speech and clinical outcomes measures from pre-test at 12-24 hours following tracheostomy and post-test at 48-60 hours following tracheostomy and characteristics of patients who successfully tolerate early OWSV use will be identified.

The overall aim of the project is to develop a new method for treatment of untreatable severe hoarseness due to vocal fold scarring by local injection of autologous mesenchymal stromal cells (MSC). At present there is no lasting effective treatment for this condition which results in personal suffering, and often extended sick leave, change of work or unemployement for the patients. Based on the previous results the investigators expect the autologous MSC product KI-MSC-PL-204 to be a new effective treatment without side effects for many patients with severe hoarseness or aphonia due to vocal fold scarring.