{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Patient+Questionnaire&page=20",
    "query": {
      "intervention": "Patient Questionnaire",
      "page": 20
    },
    "page_size": 10
  },
  "pagination": {
    "page": 20,
    "page_size": 10,
    "total_count": 3501,
    "total_pages": 351,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Patient+Questionnaire&page=21&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Patient+Questionnaire&page=19&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-24T00:44:07.779Z",
  "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": "NCT02862522",
      "title": "Uric Acid Levels and Endothelial Functions",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Coronary Artery Disease"
      ],
      "interventions": [
        {
          "name": "Questionnaire of overall health",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "50 Years and older · Female only"
      },
      "enrollment_count": 229,
      "start_date": "1992-01",
      "completion_date": "2016-02",
      "has_results": false,
      "last_update_posted_date": "2016-08-11",
      "last_synced_at": "2026-10-24T00:44:07.779Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02862522"
    },
    {
      "nct_id": "NCT02280356",
      "title": "Radiation Therapy in Combination With Brachytherapy for Clinically Localized, Intermediate Risk Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "external beam radiation therapy",
          "type": "RADIATION"
        },
        {
          "name": "brachytherapy",
          "type": "RADIATION"
        },
        {
          "name": "questionnaires",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "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": 45,
      "start_date": "2014-10-28",
      "completion_date": "2023-01-09",
      "has_results": true,
      "last_update_posted_date": "2024-03-04",
      "last_synced_at": "2026-10-24T00:44:07.779Z",
      "location_count": 6,
      "location_summary": "Basking Ridge, New Jersey • Commack, New York • Harrison, New York + 3 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Rockville Centre",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02280356"
    },
    {
      "nct_id": "NCT02835066",
      "title": "Patient Function/Fitness and Psychosocial Health in Improving Health-Related Quality of Life in Patients With Stage I-IV Non-Small Cell Lung Cancer",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Smoking",
        "Lung Neoplasms"
      ],
      "interventions": [
        {
          "name": "Integrated Fitness Assessment",
          "type": "OTHER"
        },
        {
          "name": "Psychosocial Assessment and Care",
          "type": "PROCEDURE"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2016-07",
      "completion_date": "2018-07",
      "has_results": false,
      "last_update_posted_date": "2018-07-27",
      "last_synced_at": "2026-10-24T00:44:07.779Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02835066"
    },
    {
      "nct_id": "NCT01583556",
      "title": "Optional Follow-up Visits for Common, Low-risk Arm Fractures",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Mallet Fracture",
        "Metacarpal Fracture",
        "Metacarpal Neck Fracture",
        "Distal Radius Fracture",
        "Radial Head Fracture"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2012-07",
      "completion_date": "2015-01",
      "has_results": false,
      "last_update_posted_date": "2015-04-07",
      "last_synced_at": "2026-10-24T00:44:07.779Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01583556"
    },
    {
      "nct_id": "NCT04296305",
      "title": "Effect of Opioid Infusion Rate on Abuse Liability Potential of Intravenous Hydromorphone for Cancer Pain",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hematopoietic and Lymphoid Cell Neoplasm",
        "Malignant Solid Neoplasm"
      ],
      "interventions": [
        {
          "name": "Hydromorphone",
          "type": "DRUG"
        },
        {
          "name": "Placebo Administration",
          "type": "DRUG"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "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": 84,
      "start_date": "2020-09-10",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-16",
      "last_synced_at": "2026-10-24T00:44:07.779Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04296305"
    },
    {
      "nct_id": "NCT06682039",
      "title": "Attention Bias Modification for the Improvement of Anxiety in Adolescent and Young Adult Cancer Survivors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Childhood Hematopoietic and Lymphatic System Neoplasm",
        "Childhood Malignant Solid Neoplasm"
      ],
      "interventions": [
        {
          "name": "Internet-Based Intervention",
          "type": "OTHER"
        },
        {
          "name": "Interview",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Text Message-Based Navigation Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "15 Years to 29 Years"
      },
      "enrollment_count": 70,
      "start_date": "2024-11-08",
      "completion_date": "2026-01-12",
      "has_results": false,
      "last_update_posted_date": "2026-01-30",
      "last_synced_at": "2026-10-24T00:44:07.779Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06682039"
    },
    {
      "nct_id": "NCT01219075",
      "title": "Soy Isoflavones Supplementation in Treating Women at High Risk For or With Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "BRCA1 Mutation Carrier",
        "BRCA2 Mutation Carrier",
        "Ductal Breast Carcinoma in Situ",
        "Lobular Breast Carcinoma in Situ",
        "Stage IA Breast Cancer",
        "Stage IB Breast Cancer",
        "Stage II Breast Cancer",
        "Stage IIIA Breast Cancer",
        "Stage IIIB Breast Cancer"
      ],
      "interventions": [
        {
          "name": "soy isoflavones",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "placebo",
          "type": "OTHER"
        },
        {
          "name": "questionnaire administration",
          "type": "OTHER"
        },
        {
          "name": "magnetic resonance imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "immunohistochemistry staining method",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "mammography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "30 Years to 75 Years · Female only"
      },
      "enrollment_count": 110,
      "start_date": "2010-07-01",
      "completion_date": "2022-11-24",
      "has_results": false,
      "last_update_posted_date": "2023-11-18",
      "last_synced_at": "2026-10-24T00:44:07.779Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01219075"
    },
    {
      "nct_id": "NCT07456566",
      "title": "Developing a Self-Management Intervention to Improve Health Outcomes for Patients With Inflammatory Bowel Disease",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Inflammatory Bowel Diseases",
        "Ulcerative Colitis",
        "Crohn Disease"
      ],
      "interventions": [
        {
          "name": "Digital self-management program",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2026-07-20",
      "completion_date": "2028-03",
      "has_results": false,
      "last_update_posted_date": "2026-07-23",
      "last_synced_at": "2026-10-24T00:44:07.779Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07456566"
    },
    {
      "nct_id": "NCT05630794",
      "title": "Testing for Safety and Colorectal Cancer Preventive Effects of ONC201",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Colorectal Adenomatous Polyp",
        "Colorectal Carcinoma",
        "Familial Adenomatous Polyposis",
        "Multiple Adenomatous Polyps"
      ],
      "interventions": [
        {
          "name": "Biopsy Procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Colonoscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Dordaviprone Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Endoscopic Procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Sigmoidoscopy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 36,
      "start_date": "2025-10-06",
      "completion_date": "2029-05-01",
      "has_results": false,
      "last_update_posted_date": "2026-10-15",
      "last_synced_at": "2026-10-24T00:44:07.779Z",
      "location_count": 5,
      "location_summary": "Ann Arbor, Michigan • St Louis, Missouri • Cleveland, Ohio + 2 more",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05630794"
    },
    {
      "nct_id": "NCT02098057",
      "title": "Change in Permeability of the Small Intestine After Treatment With Gluten",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Gastrointestinal Disorders"
      ],
      "interventions": [
        {
          "name": "Gluten Healthy",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 20,
      "start_date": "2014-04",
      "completion_date": "2016-09-19",
      "has_results": false,
      "last_update_posted_date": "2019-04-08",
      "last_synced_at": "2026-10-24T00:44:07.779Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02098057"
    }
  ]
}