{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Questionnaire&page=22",
    "query": {
      "intervention": "Questionnaire",
      "page": 22
    },
    "page_size": 10
  },
  "pagination": {
    "page": 22,
    "page_size": 10,
    "total_count": 5464,
    "total_pages": 547,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Questionnaire&page=23&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Questionnaire&page=21&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-18T06:41:54.276Z",
  "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": "NCT01139957",
      "title": "Incidence of Cancer in Women at Increased Genetic Risk of Ovarian Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Carcinoma",
        "Fallopian Tube Carcinoma",
        "Ovarian Neoplasm",
        "Primary Peritoneal Carcinoma"
      ],
      "interventions": [
        {
          "name": "Evaluation of Cancer Risk Factors",
          "type": "PROCEDURE"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Study of High Risk Factors",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Gynecologic Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "30 Years and older · Female only"
      },
      "enrollment_count": 1916,
      "start_date": "2010-06-07",
      "completion_date": "2020-04-10",
      "has_results": false,
      "last_update_posted_date": "2020-09-02",
      "last_synced_at": "2026-10-18T06:41:54.276Z",
      "location_count": 141,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 106 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01139957"
    },
    {
      "nct_id": "NCT05212428",
      "title": "DNA Sequencing in Clinical Practice, Mayo Clinic Health Tapestry Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Genetic Disorder"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Diagnostic Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Genetic Counseling",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 110000,
      "start_date": "2020-01-22",
      "completion_date": "2029-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-10",
      "last_synced_at": "2026-10-18T06:41:54.276Z",
      "location_count": 3,
      "location_summary": "Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05212428"
    },
    {
      "nct_id": "NCT02286713",
      "title": "PCORI-CER-1306-03385 Informed Decisions About Lung Cancer Screening",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lung Cancer",
        "Smoking Cessation",
        "Tobacco Use Cessation"
      ],
      "interventions": [
        {
          "name": "Patient Decision Aid",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard Educational Information",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Follow-Up Assessments: Questionnaires",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": "77 Years",
        "sex": "ALL",
        "summary": "55 Years to 77 Years"
      },
      "enrollment_count": 516,
      "start_date": "2015-03",
      "completion_date": "2020-12-30",
      "has_results": true,
      "last_update_posted_date": "2021-02-01",
      "last_synced_at": "2026-10-18T06:41:54.276Z",
      "location_count": 1,
      "location_summary": "Ridgeland, Mississippi",
      "locations": [
        {
          "city": "Ridgeland",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02286713"
    },
    {
      "nct_id": "NCT01341418",
      "title": "Suprapatellar Versus Infrapatellar Nailing in Tibial Fractures: A Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tibial Fractures"
      ],
      "interventions": [
        {
          "name": "Suprapatellar approach",
          "type": "PROCEDURE"
        },
        {
          "name": "Infrapatellar approach",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Florida Orthopaedic Institute",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2011-04",
      "completion_date": "2016-01",
      "has_results": false,
      "last_update_posted_date": "2017-02-14",
      "last_synced_at": "2026-10-18T06:41:54.276Z",
      "location_count": 2,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01341418"
    },
    {
      "nct_id": "NCT05780866",
      "title": "Remote Monitoring in Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "Video and Activity Tracker",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Jacob E. Simmering",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "110 Years",
        "sex": "ALL",
        "summary": "50 Years to 110 Years"
      },
      "enrollment_count": 25,
      "start_date": "2023-08-01",
      "completion_date": "2023-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-02-02",
      "last_synced_at": "2026-10-18T06:41:54.276Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05780866"
    },
    {
      "nct_id": "NCT04215029",
      "title": "Lifestyle Intervention for the Reduction of Prostate Cancer Disparities Among African Americans",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer Survivor",
        "Partner",
        "Spouse",
        "Stage I Prostate Cancer AJCC v8",
        "Stage II Prostate Cancer AJCC v8",
        "Stage IIA Prostate Cancer AJCC v8",
        "Stage IIB Prostate Cancer AJCC v8",
        "Stage IIC Prostate Cancer AJCC v8",
        "Stage III Prostate Cancer AJCC v8",
        "Stage IIIA Prostate Cancer AJCC v8",
        "Stage IIIB Prostate Cancer AJCC v8",
        "Stage IIIC Prostate Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Exercise Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Informational Intervention",
          "type": "OTHER"
        },
        {
          "name": "Interview",
          "type": "OTHER"
        },
        {
          "name": "Nutritional Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Telephone-Based Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "M.D. Anderson 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": 6,
      "start_date": "2019-08-27",
      "completion_date": "2026-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-15",
      "last_synced_at": "2026-10-18T06:41:54.276Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04215029"
    },
    {
      "nct_id": "NCT05006131",
      "title": "Pancreatic Cancer Screening for At-risk Individuals",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pancreatic Cancer, Adult"
      ],
      "interventions": [
        {
          "name": "Screening for pancreatic cancer",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Beth Israel Deaconess Medical Center",
      "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": 1395,
      "start_date": "2020-07-10",
      "completion_date": "2032-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-23",
      "last_synced_at": "2026-10-18T06:41:54.276Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05006131"
    },
    {
      "nct_id": "NCT01182519",
      "title": "Lung Inflammation and Lung Metastases From Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "questionnaire, blood draw and urine sample",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "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": 400,
      "start_date": "2010-08",
      "completion_date": "2016-07",
      "has_results": false,
      "last_update_posted_date": "2016-07-12",
      "last_synced_at": "2026-10-18T06:41:54.276Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01182519"
    },
    {
      "nct_id": "NCT03414619",
      "title": "The Role of Cognitive Control in the Transdiagnostic Conceptualization of \"Intrusive Thoughts\"",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obsessive-Compulsive Disorder",
        "Generalized Anxiety Disorder",
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "Cognitive Control Tasks and Script Driven Imagery",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 75,
      "start_date": "2018-05-18",
      "completion_date": "2020-03-06",
      "has_results": false,
      "last_update_posted_date": "2020-03-18",
      "last_synced_at": "2026-10-18T06:41:54.276Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03414619"
    },
    {
      "nct_id": "NCT00518050",
      "title": "Health Behaviors, Surveillance, Psychosocial Factors, and Family Concerns",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Melanoma",
        "Survivors",
        "Psychological Factors"
      ],
      "interventions": [
        {
          "name": "Focus group",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Survey",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Memorial Sloan Kettering 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": 160,
      "start_date": "2006-10",
      "completion_date": "2015-07",
      "has_results": false,
      "last_update_posted_date": "2015-07-16",
      "last_synced_at": "2026-10-18T06:41:54.276Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00518050"
    }
  ]
}