{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Study+questionnaires&page=5",
    "query": {
      "intervention": "Study questionnaires",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 3597,
    "total_pages": 360,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Study+questionnaires&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Study+questionnaires&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-25T12:32:38.925Z",
  "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": "NCT04253483",
      "title": "Comparison of High-Dose Rate Brachytherapy and Stereotactic Ablative Radiotherapy as Monotherapy for the Treatment of Localized Prostate Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "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"
      ],
      "interventions": [
        {
          "name": "High-Dose Rate Brachytherapy",
          "type": "RADIATION"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Stereotactic Ablative Radiotherapy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "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": 14,
      "start_date": "2019-07-17",
      "completion_date": "2027-09-01",
      "has_results": false,
      "last_update_posted_date": "2025-09-17",
      "last_synced_at": "2026-10-25T12:32:38.925Z",
      "location_count": 3,
      "location_summary": "Livingston, New Jersey • New Brunswick, New Jersey • Newark, New Jersey",
      "locations": [
        {
          "city": "Livingston",
          "state": "New Jersey"
        },
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        },
        {
          "city": "Newark",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04253483"
    },
    {
      "nct_id": "NCT05453773",
      "title": "Hookah Additive Research to Inform Product Standards",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco-Related Carcinoma"
      ],
      "interventions": [
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Tobacco Smoking",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "21 Years to 50 Years"
      },
      "enrollment_count": 54,
      "start_date": "2022-06-19",
      "completion_date": "2023-05-11",
      "has_results": true,
      "last_update_posted_date": "2024-12-31",
      "last_synced_at": "2026-10-25T12:32:38.925Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05453773"
    },
    {
      "nct_id": "NCT02399956",
      "title": "Lactation Outcomes Among Survivors of Pediatric Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer",
        "Leukemia"
      ],
      "interventions": [
        {
          "name": "Survey",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "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": 471,
      "start_date": "2015-03",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2015-12-10",
      "last_synced_at": "2026-10-25T12:32:38.925Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02399956"
    },
    {
      "nct_id": "NCT06954831",
      "title": "Ultra-hypofractionated Whole Breast Irradiation With Lumpectomy Cavity Boost for the Treatment of Stage I-III Breast Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anatomic Stage I Breast Cancer AJCC v8",
        "Anatomic Stage II Breast Cancer AJCC v8",
        "Anatomic Stage III Breast Cancer AJCC v8",
        "Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "Cone-Beam Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Hypofractionated External Beam Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Radiation Boost",
          "type": "RADIATION"
        },
        {
          "name": "Whole Breast Irradiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "City of Hope Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "40 Years and older · Female only"
      },
      "enrollment_count": 82,
      "start_date": "2025-08-28",
      "completion_date": "2028-01-31",
      "has_results": false,
      "last_update_posted_date": "2025-10-29",
      "last_synced_at": "2026-10-25T12:32:38.925Z",
      "location_count": 7,
      "location_summary": "Arcadia, California • Duarte, California • Irvine, California + 4 more",
      "locations": [
        {
          "city": "Arcadia",
          "state": "California"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Lancaster",
          "state": "California"
        },
        {
          "city": "South Pasadena",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06954831"
    },
    {
      "nct_id": "NCT04226131",
      "title": "MusculRA: The Effects of Rheumatoid Arthritis on Skeletal Muscle Biomechanics",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Rheumatoid Arthritis",
        "Healthy Controls"
      ],
      "interventions": [
        {
          "name": "Blood Draw",
          "type": "OTHER"
        },
        {
          "name": "Disease Activity (DAS-28) Assessment",
          "type": "OTHER"
        },
        {
          "name": "Skeletal Muscle Mitochondrial Respiratory Capacity",
          "type": "OTHER"
        },
        {
          "name": "Muscle Biopsy",
          "type": "OTHER"
        },
        {
          "name": "Body Composition",
          "type": "OTHER"
        },
        {
          "name": "Cardiopulmonary Exercise Test (CPET)",
          "type": "OTHER"
        },
        {
          "name": "Strength Testing",
          "type": "OTHER"
        },
        {
          "name": "Questionnaires",
          "type": "OTHER"
        },
        {
          "name": "Skeletal Muscle Biomechanical Property Assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "25 Years to 75 Years"
      },
      "enrollment_count": 21,
      "start_date": "2020-09-09",
      "completion_date": "2023-07-07",
      "has_results": false,
      "last_update_posted_date": "2023-07-13",
      "last_synced_at": "2026-10-25T12:32:38.925Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04226131"
    },
    {
      "nct_id": "NCT01164566",
      "title": "Esophagoscopy in Evaluating Treatment in Patients With Stage I-IV Head and Neck Cancer Who Are Undergoing Radiation Therapy and/or Chemotherapy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stage I Adenoid Cystic Carcinoma of the Oral Cavity",
        "Stage I Mucoepidermoid Carcinoma of the Oral Cavity",
        "Stage I Squamous Cell Carcinoma of the Hypopharynx",
        "Stage I Squamous Cell Carcinoma of the Larynx",
        "Stage I Squamous Cell Carcinoma of the Lip and Oral Cavity",
        "Stage I Verrucous Carcinoma of the Larynx",
        "Stage I Verrucous Carcinoma of the Oral Cavity",
        "Stage II Adenoid Cystic Carcinoma of the Oral Cavity",
        "Stage II Mucoepidermoid Carcinoma of the Oral Cavity",
        "Stage II Squamous Cell Carcinoma of the Hypopharynx",
        "Stage II Squamous Cell Carcinoma of the Larynx",
        "Stage II Squamous Cell Carcinoma of the Lip and Oral Cavity",
        "Stage II Verrucous Carcinoma of the Larynx",
        "Stage II Verrucous Carcinoma of the Oral Cavity",
        "Stage III Adenoid Cystic Carcinoma of the Oral Cavity",
        "Stage III Mucoepidermoid Carcinoma of the Oral Cavity",
        "Stage III Squamous Cell Carcinoma of the Hypopharynx",
        "Stage III Squamous Cell Carcinoma of the Larynx",
        "Stage III Squamous Cell Carcinoma of the Lip and Oral Cavity",
        "Stage III Verrucous Carcinoma of the Larynx",
        "Stage III Verrucous Carcinoma of the Oral Cavity",
        "Stage IV Adenoid Cystic Carcinoma of the Oral Cavity",
        "Stage IV Mucoepidermoid Carcinoma of the Oral Cavity",
        "Stage IV Squamous Cell Carcinoma of the Hypopharynx",
        "Stage IV Squamous Cell Carcinoma of the Larynx",
        "Stage IV Squamous Cell Carcinoma of the Lip and Oral Cavity",
        "Stage IV Verrucous Carcinoma of the Larynx",
        "Stage IV Verrucous Carcinoma of the Oral Cavity"
      ],
      "interventions": [
        {
          "name": "endoscopic procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "questionnaire administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "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": 6,
      "start_date": "2010-12",
      "completion_date": "2012-03",
      "has_results": false,
      "last_update_posted_date": "2018-07-02",
      "last_synced_at": "2026-10-25T12:32:38.925Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01164566"
    },
    {
      "nct_id": "NCT00203840",
      "title": "Pediatric Sleep Questionnaire: Normalization and Validation Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sleep Disorders"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "Up to 17 Years"
      },
      "enrollment_count": 325,
      "start_date": "2004-08",
      "completion_date": "2016-04",
      "has_results": false,
      "last_update_posted_date": "2016-05-13",
      "last_synced_at": "2026-10-25T12:32:38.925Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00203840"
    },
    {
      "nct_id": "NCT03673579",
      "title": "Clinical Evaluation of the \"NICU Clinical Decision Support Dashboard\" - MHSB",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Preterm Birth",
        "Low; Birthweight, Extremely (999 Grams or Less)",
        "Neonatal Infection",
        "Satisfaction",
        "Stress",
        "Chronic Lung Disease",
        "Growth Acceleration",
        "Adverse Event"
      ],
      "interventions": [
        {
          "name": "NICU Dashboard",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Philips Healthcare",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 0,
      "start_date": "2018-06-14",
      "completion_date": "2020-04-01",
      "has_results": false,
      "last_update_posted_date": "2020-09-24",
      "last_synced_at": "2026-10-25T12:32:38.925Z",
      "location_count": 1,
      "location_summary": "South Bend, Indiana",
      "locations": [
        {
          "city": "South Bend",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03673579"
    },
    {
      "nct_id": "NCT00956670",
      "title": "Lymphedema After Surgery in Patients With Endometrial Cancer, Cervical Cancer, or Vulvar Cancer",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lymphedema",
        "Stage IA Cervical Cancer",
        "Stage IA Uterine Corpus Cancer",
        "Stage IA Vulvar Cancer",
        "Stage IB Cervical Cancer",
        "Stage IB Uterine Corpus Cancer",
        "Stage IB Vulvar Cancer",
        "Stage II Uterine Corpus Cancer",
        "Stage II Vulvar Cancer",
        "Stage IIA Cervical Cancer",
        "Stage IIIA Vulvar Cancer",
        "Stage IIIB Vulvar Cancer",
        "Stage IIIC Vulvar Cancer",
        "Stage IVB Vulvar Cancer"
      ],
      "interventions": [
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Study of High Risk Factors",
          "type": "PROCEDURE"
        },
        {
          "name": "Therapeutic Conventional Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Therapeutic Laparoscopic Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Therapeutic Lymphadenectomy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Gynecologic Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 1055,
      "start_date": "2012-06",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2017-05-08",
      "last_synced_at": "2026-10-25T12:32:38.925Z",
      "location_count": 213,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 160 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00956670"
    },
    {
      "nct_id": "NCT06138561",
      "title": "Management of Cisplatin-Ineligible Patients With Metastatic Bladder Cancer and The Role of Geriatric Assessments",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Bladder Cancer",
        "Metastatic Bladder Cancer",
        "Unresectable Bladder Carcinoma",
        "Urothelial Carcinoma"
      ],
      "interventions": [
        {
          "name": "Geriatric-8 Survey",
          "type": "BEHAVIORAL"
        },
        {
          "name": "National Comprehensive Cancer Network/Functional Assessment of Cancer Therapy Bladder Symptom Index-18 (FBISI-18)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient-Reported Outcomes version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE®)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 180,
      "start_date": "2024-03-05",
      "completion_date": "2028-01-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-17",
      "last_synced_at": "2026-10-25T12:32:38.925Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06138561"
    }
  ]
}