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
80 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsSub-types
Broader categories
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Bedtime stories for autism? Single-Child trial shows early gains
Symptom relief OngoingThis study tests whether listening to special audio fairy tales before sleep can improve speech, motor skills, and independence in a child with autism and central auditory processing disorder. The child stays at home with their mother, avoiding clinic stress. Early results from t…
Phase: NA • Sponsor: Natalia Poluektova • Aim: Symptom relief
Last updated Jul 04, 2026 00:00 UTC
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New speech therapy trial aims to help korean Parkinson's patients speak clearly
Symptom relief OngoingThis study tests a remote speech therapy program for 32 Korean-speaking people with Parkinson's disease and their families. The therapy includes 16 sessions over four weeks, plus daily home practice, to improve speech clarity. The goal is to see if this culturally adapted approac…
Phase: NA • Sponsor: Florida State University • Aim: Symptom relief
Last updated Jun 27, 2026 13:01 UTC
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Can brain zaps boost social skills in kids with autism?
Symptom relief ENROLLING_BY_INVITATIONThis study tests whether 80 sessions of a gentle brain stimulation technique called tDCS, given over 12 months, can improve attention, social skills, and language in 180 children aged 6 to 11 who have autism along with rare diseases, genetic problems, or PANDAS. The treatment is …
Phase: PHASE1 • Sponsor: Spanish Foundation for Neurometrics Development • Aim: Symptom relief
Last updated Jun 27, 2026 12:35 UTC
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Can an app help people who stutter speak more fluently?
Symptom relief OngoingThis study looks at whether changing the sound of your own voice (like adding echo or whisper) can help adults who stutter speak more smoothly. About 100 people will use a special app for one month. The goal is to see if this simple technique improves fluency over time.
Phase: NA • Sponsor: Massachusetts Institute of Technology • Aim: Symptom relief
Last updated Jun 27, 2026 12:33 UTC
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Clearing the clutter: new study tests home help for hoarding
Symptom relief OngoingThis study tests whether adding in-home decluttering sessions to group cognitive-behavioral therapy can reduce hoarding severity in adults with hoarding disorder. About 90 participants in Sweden will receive 10 weekly home visits focused on guided decluttering, alongside standard…
Phase: NA • Sponsor: Karolinska Institutet • Aim: Symptom relief
Last updated Jun 26, 2026 19:17 UTC
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Can a visual display help you speak better? NYU study investigates
Knowledge-focused OngoingThis study looks at how people use their sense of hearing versus physical feeling when they speak. Healthy adults aged 18 to 45 will do speech tasks with altered audio feedback, sometimes with a visual display. Researchers will use a computer model to see if individual difference…
Phase: NA • Sponsor: New York University • Aim: Knowledge-focused
Last updated Aug 12, 2026 00:00 UTC
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Scientists map the Brain's 'Stop' button for speech
Knowledge-focused ENROLLING_BY_INVITATIONThis study investigates how the brain suddenly stops speech that is already underway. Researchers will record brain activity from epilepsy patients who already have electrodes implanted for medical reasons, as they perform speech tasks. The goal is to identify the neural circuits…
Phase: NA • Sponsor: Lingyun Zhao • Aim: Knowledge-focused
Last updated Jul 22, 2026 00:00 UTC
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Scientists map the Brain's speech decoder
Knowledge-focused ENROLLING_BY_INVITATIONThis study investigates how the brain processes speech sounds to understand language. Researchers will record brain activity from people with epilepsy or brain tumors who already have electrodes implanted for medical reasons. Participants listen to short speech sounds while their…
Phase: NA • Sponsor: University of California, San Francisco • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:03 UTC
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Brain study aims to unlock secrets of speech control
Knowledge-focused OngoingThis study looks at how the cerebellum, a part of the brain, helps us learn and adjust our speech. Researchers will use brain scans, magnetic stimulation, and speaking tasks in people with cerebellar ataxia (a movement disorder) and healthy volunteers. The goal is to better under…
Phase: NA • Sponsor: University of California, San Francisco • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:55 UTC
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Brain recordings reveal secrets of language processing
Knowledge-focused ENROLLING_BY_INVITATIONThis study records brain activity from people with epilepsy or brain tumors who already have electrodes implanted for medical reasons. Participants listen to short speech sounds in English, Spanish, or Mandarin while their brain signals are measured. The goal is to understand how…
Phase: NA • Sponsor: University of California, San Francisco • Aim: Knowledge-focused
Last updated Jun 26, 2026 17:58 UTC