{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Speech+Intelligibility&page=2",
    "query": {
      "condition": "Speech Intelligibility",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Speech+Intelligibility&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T08:45:32.802Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT06957730",
      "title": "A Comparison of Hearing Aid Noise Programs on Speech Intelligibility",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Loss, Bilateral or Unilateral"
      ],
      "interventions": [
        {
          "name": "Phonak Audeo Infinio Hearing Aid",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Sonova AG",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "18 Years to 95 Years"
      },
      "enrollment_count": 17,
      "start_date": "2025-04-22",
      "completion_date": "2025-05-01",
      "has_results": false,
      "last_update_posted_date": "2025-05-30",
      "last_synced_at": "2026-05-22T08:45:32.802Z",
      "location_count": 1,
      "location_summary": "Aurora, Illinois",
      "locations": [
        {
          "city": "Aurora",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06957730"
    },
    {
      "nct_id": "NCT05101083",
      "title": "Speech Intelligibility in Quiet and Noise for New vs. Legacy Hearing Aids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Loss, Sensorineural",
        "Hearing Loss"
      ],
      "interventions": [
        {
          "name": "New Receiver-in-Canal Device",
          "type": "DEVICE"
        },
        {
          "name": "Legacy Receiver-in-Canal Device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Starkey Laboratories, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 34,
      "start_date": "2021-10-25",
      "completion_date": "2022-01-10",
      "has_results": false,
      "last_update_posted_date": "2022-01-18",
      "last_synced_at": "2026-05-22T08:45:32.802Z",
      "location_count": 1,
      "location_summary": "Eden Prairie, Minnesota",
      "locations": [
        {
          "city": "Eden Prairie",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05101083"
    },
    {
      "nct_id": "NCT00488657",
      "title": "Improve Speech Using an In-the-ear Device in Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Parkinson's Disease",
        "Dysarthria"
      ],
      "interventions": [
        {
          "name": "SpeechEasy Model ITC",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Rush University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "25 Years to 90 Years"
      },
      "enrollment_count": 40,
      "start_date": "2006-06",
      "completion_date": "2010-05",
      "has_results": false,
      "last_update_posted_date": "2013-01-18",
      "last_synced_at": "2026-05-22T08:45:32.802Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00488657"
    },
    {
      "nct_id": "NCT04997577",
      "title": "Speech Perception and High Cognitive Demand",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Speech Intelligibility",
        "Aging"
      ],
      "interventions": [
        {
          "name": "Auditory-cognitive training paradigm",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Auditory training paradigm",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Maryland, College Park",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "65 Years to 85 Years"
      },
      "enrollment_count": 100,
      "start_date": "2021-09-27",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-04-08",
      "last_synced_at": "2026-05-22T08:45:32.802Z",
      "location_count": 2,
      "location_summary": "College Park, Maryland",
      "locations": [
        {
          "city": "College Park",
          "state": "Maryland"
        },
        {
          "city": "College Park",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04997577"
    },
    {
      "nct_id": "NCT07020728",
      "title": "Clarity in Motion Phase-1 Perceptual Study of Speech Intelligibility",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Solo: Unmasked Speech Stimuli",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Raw: Fully masked speech--no motion stimuli",
          "type": "BEHAVIORAL"
        },
        {
          "name": "StatScrub: Extracted Speech--no motion stimuli",
          "type": "BEHAVIORAL"
        },
        {
          "name": "SlideSpch: Scrubbed Speech emitted from linearly moving speaker stimuli",
          "type": "BEHAVIORAL"
        },
        {
          "name": "SlideNoise: Speech Scrubbed from linearly moving and stationary noise stimuli",
          "type": "BEHAVIORAL"
        },
        {
          "name": "SlideMic: Stationary sources scrubbed from a linearly moving mic stimuli",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Speech Technology and Applied Research Corp.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 72,
      "start_date": "2024-08-01",
      "completion_date": "2024-08-31",
      "has_results": false,
      "last_update_posted_date": "2025-06-25",
      "last_synced_at": "2026-05-22T08:45:32.802Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07020728"
    },
    {
      "nct_id": "NCT04762043",
      "title": "MyoVoice to Restore Natural, Hands-free Communication to Individuals With Vocal Impairments",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Rehabilitation of Speech and Language Disorders",
        "Speech Disorders",
        "Speech, Alaryngeal",
        "Communication Aids for Disabled",
        "Speech Perception",
        "Speech Intelligibility"
      ],
      "interventions": [
        {
          "name": "Experimental System: MyoVoice",
          "type": "DEVICE"
        },
        {
          "name": "Reference System: Electrolarynx",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Altec Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2021-02-12",
      "completion_date": "2023-11-08",
      "has_results": true,
      "last_update_posted_date": "2024-09-23",
      "last_synced_at": "2026-05-22T08:45:32.802Z",
      "location_count": 1,
      "location_summary": "Natick, Massachusetts",
      "locations": [
        {
          "city": "Natick",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04762043"
    },
    {
      "nct_id": "NCT06540989",
      "title": "Noise-augmented Automatic Speech Recognition for Speech Treatment in Parkinson's Disease",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "Immediate treatment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Deferred treatment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Teachers College, Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "50 Years to 80 Years"
      },
      "enrollment_count": 42,
      "start_date": "2024-09-01",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2024-08-15",
      "last_synced_at": "2026-05-22T08:45:32.802Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06540989"
    },
    {
      "nct_id": "NCT04953390",
      "title": "Evaluating Benefits of Hearing Aid Microphone Directionality Technologies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Loss"
      ],
      "interventions": [
        {
          "name": "Phonak Audeo hearing aid",
          "type": "DEVICE"
        },
        {
          "name": "Phonak hearing aid with multiple directionality settings, adjustable via a mobile app",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Sonova AG",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 19,
      "start_date": "2021-05-03",
      "completion_date": "2021-07-02",
      "has_results": true,
      "last_update_posted_date": "2022-11-09",
      "last_synced_at": "2026-05-22T08:45:32.802Z",
      "location_count": 1,
      "location_summary": "Aurora, Illinois",
      "locations": [
        {
          "city": "Aurora",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04953390"
    },
    {
      "nct_id": "NCT04897711",
      "title": "Perceptual Training to Improve Listeners' Ability to Understand Speech Produced by Individuals With Dysarthria",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dysarthria",
        "Intelligibility, Speech"
      ],
      "interventions": [
        {
          "name": "Perceptual Training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Utah State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 217,
      "start_date": "2021-04-26",
      "completion_date": "2023-07-01",
      "has_results": true,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-05-22T08:45:32.802Z",
      "location_count": 2,
      "location_summary": "Tallahassee, Florida • Logan, Utah",
      "locations": [
        {
          "city": "Tallahassee",
          "state": "Florida"
        },
        {
          "city": "Logan",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04897711"
    },
    {
      "nct_id": "NCT03538925",
      "title": "Building Sentences With Preschoolers Who Use AAC",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Down Syndrome",
        "Speech and Language Disorder",
        "Speech Disorders in Children",
        "Speech Intelligibility",
        "Speech Sound Disorder"
      ],
      "interventions": [
        {
          "name": "AAC Generative Language Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard of Care / Business as Usual",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Central Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "4 Years",
        "sex": "ALL",
        "summary": "3 Years to 4 Years"
      },
      "enrollment_count": 70,
      "start_date": "2018-05-11",
      "completion_date": "2023-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-01-08",
      "last_synced_at": "2026-05-22T08:45:32.802Z",
      "location_count": 2,
      "location_summary": "Orlando, Florida • Albuquerque, New Mexico",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03538925"
    }
  ]
}