{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Symptom+Questionnaires&page=20",
    "query": {
      "intervention": "Symptom Questionnaires",
      "page": 20
    },
    "page_size": 10
  },
  "pagination": {
    "page": 20,
    "page_size": 10,
    "total_count": 795,
    "total_pages": 80,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Symptom+Questionnaires&page=21&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Symptom+Questionnaires&page=19&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-26T18:00:29.786Z",
  "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": "NCT01196130",
      "title": "Colorectal Cancer Umbrella Protocol - Assessment of Targeted Therapies Against Colorectal Cancer (ATTACC Program) Screening Protocol",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "Cancer Symptom Questionnaire",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Biomarker Testing",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "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": 1275,
      "start_date": "2010-08",
      "completion_date": "2022-12-09",
      "has_results": false,
      "last_update_posted_date": "2022-12-13",
      "last_synced_at": "2026-10-26T18:00:29.786Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01196130"
    },
    {
      "nct_id": "NCT06397677",
      "title": "Defining the Molecular and Radiologic Phenotype of Progressive RA Interstitial Lung Disease",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rheumatoid Arthritis",
        "Interstitial Lung Disease"
      ],
      "interventions": [
        {
          "name": "Research Testing Performed (Laboratory)",
          "type": "GENETIC"
        },
        {
          "name": "Information Collected as Standard of Care",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Research Testing Performed",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "University of Colorado, Denver",
      "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": 450,
      "start_date": "2024-01-22",
      "completion_date": "2034-01",
      "has_results": false,
      "last_update_posted_date": "2024-05-03",
      "last_synced_at": "2026-10-26T18:00:29.786Z",
      "location_count": 4,
      "location_summary": "San Francisco, California • Aurora, Colorado • Kansas City, Kansas + 1 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06397677"
    },
    {
      "nct_id": "NCT07856394",
      "title": "Adding Spatially Fractionated Radiation Therapy to Standard Palliative Radiation for Improving Disease-Related Symptoms in Patients With Unresectable Solid Tumors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Metastatic Malignant Solid Neoplasm",
        "Unresectable Malignant Solid Neoplasm",
        "Unresectable Solid Tumor",
        "Malignant Tumor",
        "Metastatic Solid Tumor"
      ],
      "interventions": [
        {
          "name": "Electronic Health Record Review",
          "type": "OTHER"
        },
        {
          "name": "External Beam Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Spatially-fractionated Radiation Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "OTHER",
        "RADIATION"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "15 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2026-09-23",
      "completion_date": "2031-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-10-26",
      "last_synced_at": "2026-10-26T18:00:29.786Z",
      "location_count": 2,
      "location_summary": "Scottsdale, Arizona • Rochester, Minnesota",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07856394"
    },
    {
      "nct_id": "NCT02693262",
      "title": "Comparing Rate Response With CLS Versus Accelerometer ICD Settings in Heart Failure Patients With BIOTRONIK CRT-Ds",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure",
        "ICD",
        "Chronotropic Incompetence"
      ],
      "interventions": [
        {
          "name": "CLS Mode on Biotronik CRT-D",
          "type": "DEVICE"
        },
        {
          "name": "Accelerometer Mode on Biotronik CRT-D",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 12,
      "start_date": "2016-07",
      "completion_date": "2020-07-24",
      "has_results": true,
      "last_update_posted_date": "2021-08-05",
      "last_synced_at": "2026-10-26T18:00:29.786Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02693262"
    },
    {
      "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": "2026-10-26T18:00:29.786Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00688168"
    },
    {
      "nct_id": "NCT05708092",
      "title": "NRF for Improved Re-Entry Outcomes for Offenders With Brain Injury (Brain Injury RE)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Brain Injury"
      ],
      "interventions": [
        {
          "name": "NeuroResource Facilitation (NRF)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 1022,
      "start_date": "2022-03-22",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-23",
      "last_synced_at": "2026-10-26T18:00:29.786Z",
      "location_count": 2,
      "location_summary": "New York, New York • Carlisle, Pennsylvania",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Carlisle",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05708092"
    },
    {
      "nct_id": "NCT02322307",
      "title": "Trial on Impact of HealthPROMISE Mobile App on Inflammatory Bowel Disease Care and Quality of Life",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Inflammatory Bowel Disease",
        "Crohn's Disease",
        "Ulcerative Colitis"
      ],
      "interventions": [
        {
          "name": "HealthPROMISE users",
          "type": "OTHER"
        },
        {
          "name": "Control Group",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 320,
      "start_date": "2015-02",
      "completion_date": "2020-01-20",
      "has_results": false,
      "last_update_posted_date": "2020-05-07",
      "last_synced_at": "2026-10-26T18:00:29.786Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02322307"
    },
    {
      "nct_id": "NCT07691112",
      "title": "Prevalence of Chapman Reflex Points in Medical Students and Their Association With Visceral Symptoms",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Healthy",
        "Autonomic Nervous System Diseases",
        "Lymphatic Diseases",
        "Somatic Dysfunction",
        "Chapman Reflex Points"
      ],
      "interventions": [
        {
          "name": "Chapman Reflex Point Examination",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "The Touro College and University System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 101,
      "start_date": "2020-03-04",
      "completion_date": "2026-06-27",
      "has_results": false,
      "last_update_posted_date": "2026-07-08",
      "last_synced_at": "2026-10-26T18:00:29.786Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07691112"
    },
    {
      "nct_id": "NCT02173080",
      "title": "Development and Assessment of The Polycystic Liver Disease Questionnaire (PLD-Q).",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Polycystic Liver Disease"
      ],
      "interventions": [
        {
          "name": "PLD-Q",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "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": 594,
      "start_date": "2014-06",
      "completion_date": "2024-03-11",
      "has_results": false,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-10-26T18:00:29.786Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02173080"
    },
    {
      "nct_id": "NCT03539081",
      "title": "Spinal Cord Stimulation for Restless Legs Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Restless Legs Syndrome",
        "Neuropathic Pain"
      ],
      "interventions": [
        {
          "name": "Dual-energy X-ray absorptiometry Scan",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Laboratory Measurements",
          "type": "OTHER"
        },
        {
          "name": "Blood Flow Measurement",
          "type": "OTHER"
        },
        {
          "name": "Continuous Blood Pressure",
          "type": "OTHER"
        },
        {
          "name": "Partial pressure of oxygen",
          "type": "OTHER"
        },
        {
          "name": "Microneurography",
          "type": "OTHER"
        },
        {
          "name": "Anthropometric Measurements",
          "type": "OTHER"
        },
        {
          "name": "John Hopkins Restless Legs Severity Scale",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Continuous Blood Pressure Diary",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "Marshall Holland",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 15,
      "start_date": "2016-07-05",
      "completion_date": "2020-04-23",
      "has_results": true,
      "last_update_posted_date": "2023-09-21",
      "last_synced_at": "2026-10-26T18:00:29.786Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03539081"
    }
  ]
}