Speech disorder
MONDO:0004730A term referring to disorders characterized by the disruption of normal speech. It includes stuttering, lisps, dysarthria and voice disorders.
Also known as: speech impediment or impairment
82 clinical trials for this condition and its sub-types, 54 tagged with Speech disorder itself.
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Sub-types of Speech disorder
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Stutter disorder 22 trials
4 sub-types
- Stuttering, familial persistent, 1 0 trials
- Stuttering, familial persistent, 2 0 trials
- Stuttering, familial persistent, 3 0 trials
- Stuttering, familial persistent, 4 0 trials
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Articulation disorder 7 trials
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Mutism 2 trials
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Echolalia 1 trial
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Mind-Reading chip aims to give voice to the speechless
Disease control Recruiting nowThis early study tests a small, wireless brain implant designed to help people with severe speech problems communicate by thought. Four adults with conditions like locked-in syndrome or ALS will get the implant and learn to control it. The main goal is to see if the device is saf…
Sponsor: Shanghai StairMed Technology Co., Ltd. • Aim: Disease control
Last updated Sep 13, 2026 00:00 UTC
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Mind-Reading device aims to give voice to the voiceless
Disease control Recruiting nowThis early study tests a brain-computer implant that reads brain signals to help people with severe paralysis (from ALS, stroke, or spinal cord injury) communicate. The device aims to decode imagined speech and allow control of computers. Only 2 participants will be enrolled to c…
Sponsor: Paradromics • Aim: Disease control
Last updated Jun 27, 2026 12:07 UTC
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App aims to give a voice to those with speech difficulties
Symptom relief Recruiting nowThis pilot study tests whether the Voiceitt app can help people with speech impairments caused by conditions like cerebral palsy, stroke, ALS, or Parkinson's disease communicate more effectively. Participants use the app to see if it improves speech clarity and daily communicatio…
Sponsor: University of Pittsburgh • Aim: Symptom relief
Last updated Sep 06, 2026 00:00 UTC
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Bilingual brain boost: new therapy targets language loss in dementia
Symptom relief Recruiting nowThis study tests a speech therapy program for bilingual Spanish-English or Spanish-Catalan speakers with primary progressive aphasia, a condition that slowly damages language abilities. Sixty participants will receive personalized script training via video sessions, while 30 othe…
Sponsor: Stephanie Grasso • Aim: Symptom relief
Last updated Jun 27, 2026 13:08 UTC
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Video games may boost speech and arm movement in kids with cerebral palsy
Symptom relief Recruiting nowThis study tests whether home-based video games can improve speech clarity and arm movement in children with cerebral palsy. Fifteen children aged 8-17 will play specially designed computer games for 30 minutes a day, 5 days a week, for 8 weeks. Researchers will measure changes i…
Sponsor: Rutgers, The State University of New Jersey • Aim: Symptom relief
Last updated Jun 27, 2026 13:06 UTC
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Can a simple amplifier give Parkinson's patients their voice back?
Symptom relief Recruiting nowThis study is testing whether speech amplification devices can help people with Parkinson's disease and related conditions who have a soft, weak voice (hypophonia). Researchers will work with 100 participants to measure how well these devices improve speech loudness, clarity, and…
Sponsor: Michigan State University • Aim: Symptom relief
Last updated Jun 27, 2026 12:36 UTC
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Can video games help you find your voice? VR therapy trial launches
Symptom relief Recruiting nowThis study tests whether virtual reality (VR) games can make speech therapy more fun and improve how often people practice. Researchers will enroll 30 adults with voice disorders at the Glenrose Rehabilitation Hospital. Participants will use VR speech therapy games at home and in…
Sponsor: University of Alberta • Aim: Symptom relief
Last updated Jun 27, 2026 12:31 UTC
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Could a website help stroke and brain injury patients recover speech and thinking?
Symptom relief Recruiting nowThis study is testing whether a web-based platform called Cognishine can help adults with cognitive and speech problems after a brain injury or stroke. Instead of using paper exercises, patients will do therapy on a tablet or computer. The goal is to see if this digital approach …
Sponsor: Liverpool University Hospitals NHS Foundation Trust • Aim: Symptom relief
Last updated Jun 27, 2026 12:28 UTC
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Throat plumping injection could give cancer survivors their voice back
Symptom relief Recruiting nowSome head and neck cancer survivors develop velopharyngeal dysfunction (VPD), where the soft palate doesn't close properly, causing nasal-sounding speech and trouble swallowing. This study tests a simple injection that plumps up the back of the throat to improve closure. Research…
Sponsor: Vanessa Torrecillas • Aim: Symptom relief
Last updated Jun 27, 2026 12:24 UTC
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Zapping the brain to stop the clutter
Symptom relief Recruiting nowThis small study from Stanford tests whether rapid, non-invasive brain stimulation can reduce the urge to hoard. Ten adults with hoarding disorder will receive the treatment and report changes in their acquiring habits. The goal is to see if this safe, outpatient procedure can ea…
Sponsor: Stanford University • Aim: Symptom relief
Last updated Jun 27, 2026 12:23 UTC
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Olive oil and betaine gel may ease radiation mouth pain
Symptom relief Recruiting nowThis phase 2 trial is testing a topical gel and mouthwash made from olive oil, betaine, and xylitol (XCM-OM118) to see if it can reduce severe oral mucositis (painful mouth sores) in head & neck cancer patients receiving radiation. The study will enroll 63 adults and track how ma…
Sponsor: Mucosa Innovations, S.L. • Aim: Symptom relief
Last updated Jun 27, 2026 12:07 UTC
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VR training aims to cure stage fright in college students
Symptom relief Recruiting nowThis study tests whether virtual reality (VR) simulations can help college students improve their public speaking skills and reduce anxiety. 80 students will be randomly assigned to either a VR training group or a wait-list control group. Researchers will measure speech rate, pau…
Sponsor: University of Liege • Aim: Symptom relief
Last updated Jun 27, 2026 09:02 UTC
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Scientists gather data to unlock secrets of hearing and balance
Knowledge-focused Recruiting nowThis study collects medical information and samples from people with hearing, balance, taste, smell, voice, speech, or language disorders. Researchers aim to use this data for future studies and to find candidates for other research. Participants receive standard care, and no exp…
Sponsor: National Institute on Deafness and Other Communication Disorders (NIDCD) • Aim: Knowledge-focused
Last updated Aug 20, 2026 00:00 UTC
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Yale scientists uncover how we learn to speak – and never forget
Knowledge-focused Recruiting nowThis study explores how the brain learns and remembers speech movements. Researchers will have 330 healthy adults say words while hearing their own voice slightly altered through headphones. The goal is to understand which brain areas help us adapt and retain new speech patterns,…
Sponsor: Yale University • Aim: Knowledge-focused
Last updated Aug 20, 2026 00:00 UTC
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Scientists map Brain's speech control in healthy volunteers
Knowledge-focused Recruiting nowThis study looks at how the brain processes and controls speech in healthy adults. Researchers want to understand how people notice their own speech mistakes and learn new sounds. About 117 English-speaking adults with normal hearing and no neurological conditions will take part.…
Sponsor: University of Wisconsin, Madison • Aim: Knowledge-focused
Last updated Aug 01, 2026 00:00 UTC
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Scientists probe Brain's speech secrets in stuttering and dyslexia
Knowledge-focused Recruiting nowThis study looks at how the brain uses feedback to control speech in 90 adults aged 18-50, including people who stutter, have dyslexia, and those with typical speech. Participants will do speech tasks, have an MRI scan, and receive mild brain stimulation to see how different brai…
Sponsor: Boston University Charles River Campus • Aim: Knowledge-focused
Last updated Jul 23, 2026 00:00 UTC
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Scientists probe Brain's speech learning secrets
Knowledge-focused Recruiting nowThis study aims to understand how the brain learns and remembers new ways of speaking. Researchers will use brain scans (fMRI) and magnetic pulses (TMS) to see which brain areas are involved. 50 healthy, right-handed, fluent English speakers with normal hearing will participate. …
Sponsor: Yale University • Aim: Knowledge-focused
Last updated Jul 18, 2026 00:00 UTC
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Do women face worse voice outcomes after throat surgery?
Knowledge-focused Recruiting nowThis study looks at how men and women differ in voice quality after having their voice box removed (total laryngectomy) and using a special voice prosthesis. Researchers will ask 12 participants to complete surveys and voice tests. The goal is to understand if women have poorer s…
Sponsor: University of California, Davis • Aim: Knowledge-focused
Last updated Jul 08, 2026 00:00 UTC
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Jaw surgery may fix more than your Smile—Could it improve speech?
Knowledge-focused Recruiting nowThis study looks at how jaw surgery affects speech in people with bite problems like open bite or underbite. Researchers will record patients' speech and tongue movements before and after surgery to see what changes. The goal is to understand why many jaw surgery patients have sp…
Sponsor: University of North Carolina, Chapel Hill • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:06 UTC
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Mind-Reading brain chip could give voice to the voiceless
Knowledge-focused Recruiting nowThis early-stage study tests a brain implant called BrainGate in just 3 people with severe paralysis or speech loss from conditions like ALS or spinal cord injury. The goal is to see if the device is safe and can let users control a computer cursor or other tools by thought alone…
Sponsor: Leigh R. Hochberg, MD, PhD. • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:00 UTC
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New study aims to connect severe hoarders with mental health care
Knowledge-focused Recruiting nowThis study looks at 60 adults with severe hoarding disorder who are already in contact with social services in Copenhagen. Researchers want to find out how many also have other serious mental health conditions and test a new approach: a team of doctors and social workers who reac…
Sponsor: Andreas Rosén Rasmussen • Aim: Knowledge-focused
Last updated Jun 27, 2026 11:03 UTC
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Brain zap study reveals secrets of speech learning
Knowledge-focused Recruiting nowThis study looks at how two brain areas—the subthalamic nucleus and the ventral intermediate nucleus of the thalamus—help us learn and produce speech. Researchers will temporarily turn deep brain stimulation (DBS) on or off in 80 people with Parkinson's disease or essential tremo…
Sponsor: Boston University Charles River Campus • Aim: Knowledge-focused
Last updated Jun 27, 2026 11:00 UTC
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Mind reading? scientists decode imagined chinese speech from brain activity
Knowledge-focused Recruiting nowThis study investigates whether brain surface recordings can decode Mandarin Chinese speech, including tones, from imagined speech. About 50 participants with brain tumors or epilepsy will have temporary electrodes placed during surgery, and 10 people with severe speech loss will…
Sponsor: Second Affiliated Hospital, School of Medicine, Zhejiang University • Aim: Knowledge-focused
Last updated Jun 27, 2026 11:00 UTC
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New study aims to decode speech problems after brain injury
Knowledge-focused Recruiting nowThis observational study looks at how acquired brain injury affects speech and breathing in adults with dysarthria. About 100 participants will have their voice recorded and take breathing tests. The goal is to find better ways to identify the severity and type of dysarthria, hel…
Sponsor: University of Salamanca • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:08 UTC
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Brain study aims to unlock secrets of speech learning
Knowledge-focused Recruiting nowThis study looks at how the brain learns and remembers new ways of speaking. Researchers will use brain stimulation and brain scans in 160 healthy adults to see which brain areas are important for speech motor learning and retention. The goal is to better understand the basic sci…
Sponsor: Yale University • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:06 UTC
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Scientists probe Brain's speech learning secrets
Knowledge-focused Recruiting nowThis study aims to understand which parts of the brain help us learn and remember new ways of speaking. Researchers will use brain scans and magnetic pulses to observe brain activity in 120 healthy adults. The goal is to learn more about how speech motor learning works, not to te…
Sponsor: Yale University • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:06 UTC
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Mind-Reading device aims to give voice to the speechless
Knowledge-focused Recruiting nowThis study tests a brain implant that reads signals from the brain to help people who have lost the ability to speak fluently communicate through a computer just by trying to talk. It involves up to 2 participants with conditions like spinal cord injury or ALS. The main goal is t…
Sponsor: Leigh R. Hochberg, MD, PhD. • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:00 UTC
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Can rhythm tasks unlock secrets of childhood stuttering?
Knowledge-focused Recruiting nowThis study looks at how children who stutter perform on rhythm tasks compared to children who don't stutter. Researchers will test rhythm perception and production once a year for three years in 500 children. The goal is to understand how rhythm skills might be linked to brain ac…
Sponsor: University of Michigan • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:55 UTC
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Titanium dentures tested for speech clarity in small trial
Knowledge-focused Recruiting nowThis study looks at how a new type of partial denture made from titanium using digital design and milling affects speech. Twelve people with missing teeth will get these dentures, and researchers will measure how clear and understandable their speech is. The goal is to see if tit…
Sponsor: Badr University • Aim: Knowledge-focused
Last updated Jun 26, 2026 12:44 UTC