{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Vocal+Tremor",
    "query": {
      "condition": "Vocal Tremor"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T09:23:54.746Z",
  "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": "2026-05-22T09:23:54.746Z",
      "location_count": 1,
      "location_summary": "Syracuse, New York",
      "locations": [
        {
          "city": "Syracuse",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01864525"
    },
    {
      "nct_id": "NCT02111369",
      "title": "Propranolol and Botulinum Toxin for Essential Vocal Tremor",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Essential Vocal Tremor",
        "Essential Voice Tremor",
        "Essential Tremor",
        "Voice Tremor",
        "Vocal Tremor"
      ],
      "interventions": [
        {
          "name": "Propranolol",
          "type": "DRUG"
        },
        {
          "name": "Botulinum Toxin",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 18,
      "start_date": "2014-05",
      "completion_date": "2014-11",
      "has_results": true,
      "last_update_posted_date": "2016-04-27",
      "last_synced_at": "2026-05-22T09:23:54.746Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02111369"
    },
    {
      "nct_id": "NCT06385535",
      "title": "Clinical Characteristics and Temporal Properties of Individual Tics in Persistent Tic Disorder",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tics",
        "Tic Disorders",
        "Vocal Tic",
        "Motor Tic",
        "Tourette Syndrome",
        "Tourette Syndrome in Children",
        "Tourette Syndrome in Adolescence",
        "Tics/Tremor"
      ],
      "interventions": [
        {
          "name": "Habit Reversal Training (HRT)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "8 Years to 12 Years"
      },
      "enrollment_count": 12,
      "start_date": "2024-04-04",
      "completion_date": "2024-12",
      "has_results": false,
      "last_update_posted_date": "2024-04-26",
      "last_synced_at": "2026-05-22T09:23:54.746Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06385535"
    },
    {
      "nct_id": "NCT07474740",
      "title": "Evaluating the Efficacy of Voice Therapy for Neurogenic Voice Disorders",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Speakers With Neurogenic Voice Disorders"
      ],
      "interventions": [
        {
          "name": "Breathy voice",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Texas at Austin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 40,
      "start_date": "2024-06-04",
      "completion_date": "2028-06-04",
      "has_results": false,
      "last_update_posted_date": "2026-03-16",
      "last_synced_at": "2026-05-22T09:23:54.746Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07474740"
    },
    {
      "nct_id": "NCT00066911",
      "title": "Brain Mapping of Voice Control",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Voice Disorders"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Neurological Disorders and Stroke (NINDS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "20 Years to 70 Years"
      },
      "enrollment_count": 174,
      "start_date": "2003-08-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-05-22T09:23:54.746Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00066911"
    },
    {
      "nct_id": "NCT07577310",
      "title": "False Vocal Fold vs EMG Guided Botox for Vocal Tremor",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vocal Tremor"
      ],
      "interventions": [
        {
          "name": "False Vocal Fold (FVF) botulinum toxin injections",
          "type": "PROCEDURE"
        },
        {
          "name": "Electromyography (EMG)-Guided Injection",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2026-08",
      "completion_date": "2030-07",
      "has_results": false,
      "last_update_posted_date": "2026-05-11",
      "last_synced_at": "2026-05-22T09:23:54.746Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07577310"
    }
  ]
}