{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Voice+lessons",
    "query": {
      "intervention": "Voice lessons"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 7,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T20:56:19.153Z",
  "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": "NCT04508569",
      "title": "Evaluation of Big Decisions in Three South Texas School Districts",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Teen Pregnancy Prevention"
      ],
      "interventions": [
        {
          "name": "Big Decisions",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Philliber Research & Evaluation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "13 Years to 17 Years"
      },
      "enrollment_count": 3170,
      "start_date": "2016-09-01",
      "completion_date": "2019-12-15",
      "has_results": false,
      "last_update_posted_date": "2020-08-11",
      "last_synced_at": "2026-09-03T20:56:19.153Z",
      "location_count": 1,
      "location_summary": "Accord, New York",
      "locations": [
        {
          "city": "Accord",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04508569"
    },
    {
      "nct_id": "NCT05516108",
      "title": "Remote Mindfulness Training Following Early Life Adversity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Stress",
        "Mindfulness",
        "Early Life Adversity"
      ],
      "interventions": [
        {
          "name": "Mindfulness",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Coping",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "18 Years to 29 Years"
      },
      "enrollment_count": 81,
      "start_date": "2022-09-01",
      "completion_date": "2024-05-22",
      "has_results": true,
      "last_update_posted_date": "2025-08-08",
      "last_synced_at": "2026-09-03T20:56:19.153Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05516108"
    },
    {
      "nct_id": "NCT05336747",
      "title": "Here, My Voice 2 Voice Lessons Pilot",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hearing Loss"
      ],
      "interventions": [
        {
          "name": "Voice lessons",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2022-04-21",
      "completion_date": "2024-03-14",
      "has_results": false,
      "last_update_posted_date": "2024-06-11",
      "last_synced_at": "2026-09-03T20:56:19.153Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05336747"
    },
    {
      "nct_id": "NCT06152185",
      "title": "Mindfulness App Training for Cardiovascular Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Diseases",
        "Mindfulness"
      ],
      "interventions": [
        {
          "name": "Mindfulness Training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Enhanced Usual Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 106,
      "start_date": "2024-02-06",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-07",
      "last_synced_at": "2026-09-03T20:56:19.153Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06152185"
    },
    {
      "nct_id": "NCT02162901",
      "title": "The Reach and Effectiveness of Technology-enhanced Diabetes Prevention Programs",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes Prevention"
      ],
      "interventions": [
        {
          "name": "Choice-Class with IVR Calls",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Random-Class with IVR calls",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Random-Class only",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Choice-DVD with IVR calls",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Random-DVD with IVR calls",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Virginia Polytechnic Institute and State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 597,
      "start_date": "2014-03-13",
      "completion_date": "2017-04-28",
      "has_results": false,
      "last_update_posted_date": "2021-04-06",
      "last_synced_at": "2026-09-03T20:56:19.153Z",
      "location_count": 1,
      "location_summary": "Roanoke, Virginia",
      "locations": [
        {
          "city": "Roanoke",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02162901"
    },
    {
      "nct_id": "NCT04479605",
      "title": "Communication Training for Cancer Patients, Their Caregivers, and Their Doctors",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Communication and Illness Understanding"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 55,
      "start_date": "2020-07-15",
      "completion_date": "2025-05-14",
      "has_results": false,
      "last_update_posted_date": "2025-05-15",
      "last_synced_at": "2026-09-03T20:56:19.153Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04479605"
    },
    {
      "nct_id": "NCT03058055",
      "title": "Brain Exercises for Synaptic Plasticity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cognitive Change"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Origami",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Reading",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Kentucky",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 45,
      "start_date": "2016-07-15",
      "completion_date": "2017-12-15",
      "has_results": false,
      "last_update_posted_date": "2017-12-19",
      "last_synced_at": "2026-09-03T20:56:19.153Z",
      "location_count": 1,
      "location_summary": "Lexington, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03058055"
    }
  ]
}