{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Dysphonia&page=2",
    "query": {
      "condition": "Dysphonia",
      "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=Dysphonia&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T07:47:29.967Z",
  "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": "NCT01864525",
      "title": "Effects of Octanoic Acid for Treatment of Essential Voice Tremor",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Essential Voice Tremor",
        "Vocal Tremor",
        "Voice Tremor",
        "Essential Tremor of Voice"
      ],
      "interventions": [
        {
          "name": "Octanoic acid",
          "type": "DRUG"
        },
        {
          "name": "Inactive capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Syracuse University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 17,
      "start_date": "2013-07",
      "completion_date": "2017-03-31",
      "has_results": true,
      "last_update_posted_date": "2018-08-20",
      "last_synced_at": "2026-05-22T07:47:29.967Z",
      "location_count": 1,
      "location_summary": "Syracuse, New York",
      "locations": [
        {
          "city": "Syracuse",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01864525"
    },
    {
      "nct_id": "NCT07443891",
      "title": "Brain Network Changes After Vibro-tactile Stimulation in Laryngeal Dystonia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Laryngeal Dystonia"
      ],
      "interventions": [
        {
          "name": "Vibrotactile Stimulation (VTS)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 20,
      "start_date": "2026-01-14",
      "completion_date": "2027-02-28",
      "has_results": false,
      "last_update_posted_date": "2026-03-19",
      "last_synced_at": "2026-05-22T07:47:29.967Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07443891"
    },
    {
      "nct_id": "NCT00237679",
      "title": "Quantifying Effects of Treatment of Pediatric Dysphonia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Voice Disorders",
        "Gastroesophageal Reflux"
      ],
      "interventions": [
        {
          "name": "Neuromuscular Electrical Stimulation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Unstimulated",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "11 Years",
        "sex": "ALL",
        "summary": "6 Years to 11 Years"
      },
      "enrollment_count": 31,
      "start_date": "2004-01",
      "completion_date": "2008-12",
      "has_results": false,
      "last_update_posted_date": "2015-10-14",
      "last_synced_at": "2026-05-22T07:47:29.967Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00237679"
    },
    {
      "nct_id": "NCT05970562",
      "title": "Project 4: Ambulatory Biofeedback and Voice Therapy for Patients With Vocal Hyperfunction",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Voice Disorders",
        "Vocal Fold Polyp",
        "Vocal Nodules in Adults",
        "Muscle Tension Dysphonia"
      ],
      "interventions": [
        {
          "name": "Ambulatory Voice Monitoring with Biofeedback (AVM-B)",
          "type": "DEVICE"
        },
        {
          "name": "Conversation Training Therapy",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "BEHAVIORAL"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 100,
      "start_date": "2024-03-01",
      "completion_date": "2029-04-01",
      "has_results": false,
      "last_update_posted_date": "2025-05-11",
      "last_synced_at": "2026-05-22T07:47:29.967Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05970562"
    },
    {
      "nct_id": "NCT07176988",
      "title": "Deconstructing Voice Therapy: Towards Enhanced Communication Outcomes",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dysphonia",
        "Primary Muscle Tension Dysphonia (MTD)"
      ],
      "interventions": [
        {
          "name": "Hierarchical method",
          "type": "OTHER"
        },
        {
          "name": "Non Hierarchical method",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "16 Years to 65 Years"
      },
      "enrollment_count": 120,
      "start_date": "2025-09-03",
      "completion_date": "2029-04",
      "has_results": false,
      "last_update_posted_date": "2025-10-20",
      "last_synced_at": "2026-05-22T07:47:29.967Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07176988"
    },
    {
      "nct_id": "NCT06999577",
      "title": "The Mechanism Versus PPI Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Laryngopharyngeal Reflux",
        "Cough",
        "Throat Clearing",
        "Dysphonia",
        "Reflux"
      ],
      "interventions": [
        {
          "name": "Omeprazole 40 MG",
          "type": "DRUG"
        },
        {
          "name": "Laryngeal Recalibration Therapy",
          "type": "BEHAVIORAL"
        },
        {
          "name": "GERD Lifestyle Recommendations",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 160,
      "start_date": "2025-06-04",
      "completion_date": "2029-07-01",
      "has_results": false,
      "last_update_posted_date": "2025-08-01",
      "last_synced_at": "2026-05-22T07:47:29.967Z",
      "location_count": 1,
      "location_summary": "San Deigo, California",
      "locations": [
        {
          "city": "San Deigo",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06999577"
    },
    {
      "nct_id": "NCT00015795",
      "title": "Study of Air Stream in Voice Production",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Spastic Dysphonia",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "airway interruption test",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "National Institute of Neurological Disorders and Stroke (NINDS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 30,
      "start_date": "2001-05",
      "completion_date": "2003-06",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-05-22T07:47:29.967Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00015795"
    },
    {
      "nct_id": "NCT00055549",
      "title": "Dextromethorphan to Treat Patients With Voice Spasms",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Voice Disorders"
      ],
      "interventions": [
        {
          "name": "Dextromethorphan",
          "type": "DRUG"
        },
        {
          "name": "Lorazepam",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Neurological Disorders and Stroke (NINDS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 65,
      "start_date": "2003-03-04",
      "completion_date": "2009-11-13",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-05-22T07:47:29.967Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00055549"
    },
    {
      "nct_id": "NCT00001308",
      "title": "Central Mechanisms in Speech Motor Control Studied With H215O PET",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Communication Disorder",
        "Healthy",
        "Stuttering",
        "Tourette Syndrome",
        "Voice Disorder"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute on Deafness and Other Communication Disorders (NIDCD)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 1163,
      "start_date": "1992-04-28",
      "completion_date": "2016-10-06",
      "has_results": false,
      "last_update_posted_date": "2019-12-17",
      "last_synced_at": "2026-05-22T07:47:29.967Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001308"
    },
    {
      "nct_id": "NCT05216770",
      "title": "Understanding Disorder-specific Neural Pathophysiology in Laryngeal Dystonia and Voice Tremor",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Laryngeal Dystonia",
        "Spasmodic Dysphonia",
        "Tremor"
      ],
      "interventions": [
        {
          "name": "Brain imaging",
          "type": "OTHER"
        },
        {
          "name": "Laryngeal sensory block with topical bupivacaine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Massachusetts Eye and Ear Infirmary",
      "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": 165,
      "start_date": "2022-03-24",
      "completion_date": "2027-08-31",
      "has_results": false,
      "last_update_posted_date": "2025-12-02",
      "last_synced_at": "2026-05-22T07:47:29.967Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05216770"
    }
  ]
}