{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=demographic+questionnaire&page=12",
    "query": {
      "intervention": "demographic questionnaire",
      "page": 12
    },
    "page_size": 10
  },
  "pagination": {
    "page": 12,
    "page_size": 10,
    "total_count": 308,
    "total_pages": 31,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=demographic+questionnaire&page=13&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=demographic+questionnaire&page=11&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-15T13:11:18.536Z",
  "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": "NCT03873766",
      "title": "Management of Pleural Space Infections",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Empyema, Pleural",
        "Parapneumonic Effusion"
      ],
      "interventions": [
        {
          "name": "Intrapleural Medications",
          "type": "DRUG"
        },
        {
          "name": "Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Pleural Sampling",
          "type": "PROCEDURE"
        },
        {
          "name": "Pleural fluid drainage",
          "type": "PROCEDURE"
        },
        {
          "name": "Protocol Image #1",
          "type": "RADIATION"
        },
        {
          "name": "Surgical Consultation",
          "type": "OTHER"
        },
        {
          "name": "Protocol Image #2: Chest X-ray PA/Lateral",
          "type": "RADIATION"
        },
        {
          "name": "Quality of Life",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "RADIATION",
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "Swedish Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 26,
      "start_date": "2019-04-01",
      "completion_date": "2022-03-11",
      "has_results": false,
      "last_update_posted_date": "2022-11-22",
      "last_synced_at": "2026-11-15T13:11:18.536Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03873766"
    },
    {
      "nct_id": "NCT05196061",
      "title": "Human Skin and Gut Mycobiome and Bacteriome Comprehensive Registry",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "Questionnaire",
          "type": "OTHER"
        },
        {
          "name": "Stool sample",
          "type": "OTHER"
        },
        {
          "name": "Skin swab",
          "type": "OTHER"
        },
        {
          "name": "Oral rinse",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University Hospitals Cleveland Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 5000,
      "start_date": "2020-01-01",
      "completion_date": "2030-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-11-15T13:11:18.536Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05196061"
    },
    {
      "nct_id": "NCT02914899",
      "title": "Informing the Adaptation of a CHW Model to Facilitate Lung Cancer Screening for the Chinese Community",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Lung Cancer Screening",
        "Current or Past Cigarette Smoker"
      ],
      "interventions": [
        {
          "name": "Surveys",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Navigation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Focus groups",
          "type": "BEHAVIORAL"
        },
        {
          "name": "In-depth interviews",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "21 Years to 80 Years"
      },
      "enrollment_count": 99,
      "start_date": "2016-08-01",
      "completion_date": "2025-11-19",
      "has_results": false,
      "last_update_posted_date": "2025-11-21",
      "last_synced_at": "2026-11-15T13:11:18.536Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02914899"
    },
    {
      "nct_id": "NCT02726763",
      "title": "Feasibility and Tolerability of Transcranial Direct Current Stimulation With Concurrent Cognitive Training",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer Survivors"
      ],
      "interventions": [
        {
          "name": "Transcranial Direct Current Stimulation (tDCS)",
          "type": "DEVICE"
        },
        {
          "name": "Questionnaires",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "BEHAVIORAL"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 65 Years · Female only"
      },
      "enrollment_count": 18,
      "start_date": "2016-03-30",
      "completion_date": "2027-03",
      "has_results": false,
      "last_update_posted_date": "2026-04-27",
      "last_synced_at": "2026-11-15T13:11:18.536Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02726763"
    },
    {
      "nct_id": "NCT00260572",
      "title": "Outcomes After Medical and Surgical Treatment of Gastroesophageal Reflux Disease",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Gastroesophageal Reflux Disease"
      ],
      "interventions": [
        {
          "name": "Questionnaires to evaluate QOL",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Questionnaires to evaluate heartburn and quality of life",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Questionnaire to evaluate satisfaction with treatment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Questionnaire to evaluate presence or absence of pain",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2500,
      "start_date": "1999-04",
      "completion_date": "2050-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-14",
      "last_synced_at": "2026-11-15T13:11:18.536Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00260572"
    },
    {
      "nct_id": "NCT07408531",
      "title": "LUNG-07: Advancing Precision-Based Lung Cancer Screening: Implementation, AI-Guided Risk Stratification, and Biomarker Integration (CREST AI)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lung Cancer Screening"
      ],
      "interventions": [
        {
          "name": "Sybil Artificial Intelligence (AI) screening",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Illinois Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "50 Years to 80 Years"
      },
      "enrollment_count": 2500,
      "start_date": "2026-03-12",
      "completion_date": "2038-03",
      "has_results": false,
      "last_update_posted_date": "2026-08-06",
      "last_synced_at": "2026-11-15T13:11:18.536Z",
      "location_count": 2,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07408531"
    },
    {
      "nct_id": "NCT02836522",
      "title": "Validation of a Health-Related Symptom Index for Persons Diagnosed With and Either Treated or Monitored for Anal High-Grade Squamous Intraepithelial Lesions (HSIL)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Anal High-Grade Squamous Intraepithelial Lesions"
      ],
      "interventions": [
        {
          "name": "Assessment of Health-Related Quality",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "35 Years and older"
      },
      "enrollment_count": 406,
      "start_date": "2016-04-25",
      "completion_date": "2023-08-31",
      "has_results": false,
      "last_update_posted_date": "2023-09-01",
      "last_synced_at": "2026-11-15T13:11:18.536Z",
      "location_count": 4,
      "location_summary": "Evanston, Illinois • New York, New York",
      "locations": [
        {
          "city": "Evanston",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02836522"
    },
    {
      "nct_id": "NCT07340853",
      "title": "CRISPR Delivered Anti-BCMA Car-T Therapy for Relapsed or Refractory Multiple Myeloma",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Multiple Myeloma",
        "Recurrent Multiple Myeloma",
        "Refractory Multiple Myeloma"
      ],
      "interventions": [
        {
          "name": "Leukapheresis",
          "type": "PROCEDURE"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Chimeric Antigen Receptor T cells (CAR-T) Targeting BCMA",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Quality of Life (QoL) Questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Radiographic imaging",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL",
        "BEHAVIORAL"
      ],
      "sponsor": "Thomas Martin, MD",
      "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": "2026-02-28",
      "completion_date": "2043-05-25",
      "has_results": false,
      "last_update_posted_date": "2026-06-11",
      "last_synced_at": "2026-11-15T13:11:18.536Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07340853"
    },
    {
      "nct_id": "NCT03819439",
      "title": "Microbiome and Mycobiome Registry of Volunteers With and Without Autism Spectrum Disorder",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Autism Spectrum Disorder"
      ],
      "interventions": [
        {
          "name": "Microbiome and Autism Questionnaire",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University Hospitals Cleveland Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 74,
      "start_date": "2019-01-30",
      "completion_date": "2019-07-23",
      "has_results": false,
      "last_update_posted_date": "2019-07-30",
      "last_synced_at": "2026-11-15T13:11:18.536Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03819439"
    },
    {
      "nct_id": "NCT07655934",
      "title": "A Mixed-Methods Metabolomics Investigation of Lifestyle and Energy Balance During Breast Cancer Survivorship",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Survey completion",
          "type": "OTHER"
        },
        {
          "name": "Urine specimen banking",
          "type": "OTHER"
        },
        {
          "name": "Qualitative interviews",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 100,
      "start_date": "2026-01-20",
      "completion_date": "2028-12",
      "has_results": false,
      "last_update_posted_date": "2026-06-24",
      "last_synced_at": "2026-11-15T13:11:18.536Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07655934"
    }
  ]
}