{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=questionnaires&page=35",
    "query": {
      "intervention": "questionnaires",
      "page": 35
    },
    "page_size": 10
  },
  "pagination": {
    "page": 35,
    "page_size": 10,
    "total_count": 5465,
    "total_pages": 547,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=questionnaires&page=36&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=questionnaires&page=34&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-20T10:11:52.542Z",
  "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": "NCT03133013",
      "title": "Objective Evaluation of Depression Using Sleep EEG",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depression"
      ],
      "interventions": [
        {
          "name": "SLEEPSCOPE",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "30 Years to 59 Years"
      },
      "enrollment_count": 24,
      "start_date": "2017-05-01",
      "completion_date": "2019-05-31",
      "has_results": false,
      "last_update_posted_date": "2019-12-12",
      "last_synced_at": "2026-10-20T10:11:52.542Z",
      "location_count": 1,
      "location_summary": "Redwood City, California",
      "locations": [
        {
          "city": "Redwood City",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03133013"
    },
    {
      "nct_id": "NCT04530825",
      "title": "PREVENT Tool Study: Late Effects Clinic",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Disease",
        "Childhood Obesity"
      ],
      "interventions": [
        {
          "name": "Wait-List Control",
          "type": "OTHER"
        },
        {
          "name": "PREVENT Tool",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "19 Years",
        "sex": "ALL",
        "summary": "12 Years to 19 Years"
      },
      "enrollment_count": 65,
      "start_date": "2021-02-10",
      "completion_date": "2022-02-14",
      "has_results": true,
      "last_update_posted_date": "2023-04-25",
      "last_synced_at": "2026-10-20T10:11:52.542Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04530825"
    },
    {
      "nct_id": "NCT00688168",
      "title": "Inflammatory Cytokines in Symptom Production in Multiple Myeloma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Myeloma"
      ],
      "interventions": [
        {
          "name": "Questionnaire",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Neurocognitive Testing",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Neurosensory Testing",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 491,
      "start_date": "2008-05-09",
      "completion_date": "2019-01-08",
      "has_results": false,
      "last_update_posted_date": "2019-05-29",
      "last_synced_at": "2026-10-20T10:11:52.542Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00688168"
    },
    {
      "nct_id": "NCT03844620",
      "title": "Circulating Cell-Free Tumor DNA Testing in Guiding Treatment for Patients With Advanced or Metastatic Colorectal Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Refractory Colorectal Carcinoma",
        "Stage III Colorectal Cancer AJCC v8",
        "Stage IIIA Colorectal Cancer AJCC v8",
        "Stage IIIB Colorectal Cancer AJCC v8",
        "Stage IIIC Colorectal Cancer AJCC v8",
        "Stage IV Colorectal Cancer AJCC v8",
        "Stage IVA Colorectal Cancer AJCC v8",
        "Stage IVB Colorectal Cancer AJCC v8",
        "Stage IVC Colorectal Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Best Practice",
          "type": "OTHER"
        },
        {
          "name": "Laboratory Procedure",
          "type": "OTHER"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Regorafenib",
          "type": "DRUG"
        },
        {
          "name": "Trifluridine and Tipiracil Hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2019-01-29",
      "completion_date": "2028-08-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-07",
      "last_synced_at": "2026-10-20T10:11:52.542Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03844620"
    },
    {
      "nct_id": "NCT01156324",
      "title": "The Impact of an Online Stress Management Program on In Vitro Fertilization (IVF) Outcome",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Infertility"
      ],
      "interventions": [
        {
          "name": "Online Stress Management Group (Upliv)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Boston IVF",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 40 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2010-07",
      "completion_date": "2010-08",
      "has_results": false,
      "last_update_posted_date": "2016-02-04",
      "last_synced_at": "2026-10-20T10:11:52.542Z",
      "location_count": 1,
      "location_summary": "Waltham, Massachusetts",
      "locations": [
        {
          "city": "Waltham",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01156324"
    },
    {
      "nct_id": "NCT00110292",
      "title": "Preventing Learning Problems in Young Children: A Public Health and Physician-Based Outreach",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Developmental Disabilities",
        "Language Development Disorders"
      ],
      "interventions": [
        {
          "name": "Age-specific parenting newsletters and developmental toys",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Parent-completed Ages & Stages Questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Clinic-based distribution of children's books",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "4 Months",
        "maximum_age": "7 Months",
        "sex": "ALL",
        "summary": "4 Months to 7 Months"
      },
      "enrollment_count": 600,
      "start_date": "2002-03",
      "completion_date": "2006-02",
      "has_results": false,
      "last_update_posted_date": "2005-06-24",
      "last_synced_at": "2026-10-20T10:11:52.542Z",
      "location_count": 2,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00110292"
    },
    {
      "nct_id": "NCT00913471",
      "title": "Biomarkers for Pain in Spinal Cord Injury Patients",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Traumatic Spinal Cord Injury",
        "Neuropathic Pain"
      ],
      "interventions": [
        {
          "name": "blood samples",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 120,
      "start_date": "2009-06",
      "completion_date": "2026-06",
      "has_results": false,
      "last_update_posted_date": "2026-06-16",
      "last_synced_at": "2026-10-20T10:11:52.542Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00913471"
    },
    {
      "nct_id": "NCT03157063",
      "title": "Pilot Data Collection for Activity, Adiposity, and Appetite in Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Physical Activity",
        "Sedentary Lifestyle",
        "Metabolism",
        "Energy Balance"
      ],
      "interventions": [
        {
          "name": "Data Collection Procedures",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Children's Mercy Hospital Kansas City",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "18 Years",
        "sex": "MALE",
        "summary": "14 Years to 18 Years · Male only"
      },
      "enrollment_count": 64,
      "start_date": "2017-01-01",
      "completion_date": "2018-11-19",
      "has_results": false,
      "last_update_posted_date": "2021-04-26",
      "last_synced_at": "2026-10-20T10:11:52.542Z",
      "location_count": 1,
      "location_summary": "Kansas City, Missouri",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03157063"
    },
    {
      "nct_id": "NCT07181616",
      "title": "Feasibility, Acceptability, and Preliminary Efficacy of an HIV Prevention Intervention for Older Black Women",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Risk Behaviors"
      ],
      "interventions": [
        {
          "name": "Adapted W2W",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Waitlist Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Laneshia Conner",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "50 Years and older · Female only"
      },
      "enrollment_count": 60,
      "start_date": "2026-11-30",
      "completion_date": "2030-07",
      "has_results": false,
      "last_update_posted_date": "2026-08-12",
      "last_synced_at": "2026-10-20T10:11:52.542Z",
      "location_count": 1,
      "location_summary": "Lexington, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07181616"
    },
    {
      "nct_id": "NCT00462306",
      "title": "Incidence of Obstructive Sleep Apnea in Pregnancy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obstructive Sleep Apnea",
        "Pregnancy"
      ],
      "interventions": [
        {
          "name": "Survey: Berlin questionnaire",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 4577,
      "start_date": "2005-09",
      "completion_date": "2008-06",
      "has_results": true,
      "last_update_posted_date": "2014-04-14",
      "last_synced_at": "2026-10-20T10:11:52.542Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00462306"
    }
  ]
}