{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Questionnaire&page=15",
    "query": {
      "intervention": "Questionnaire",
      "page": 15
    },
    "page_size": 10
  },
  "pagination": {
    "page": 15,
    "page_size": 10,
    "total_count": 5464,
    "total_pages": 547,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Questionnaire&page=16&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Questionnaire&page=14&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-17T21:01:20.475Z",
  "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": "NCT05510778",
      "title": "Effects of CharcoCaps® (Activated Charcoal) vs. Placebo on Intestinal Gas Production",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Intestinal Gas"
      ],
      "interventions": [
        {
          "name": "Charcocaps",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Memphis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 20,
      "start_date": "2021-09-30",
      "completion_date": "2021-12-22",
      "has_results": false,
      "last_update_posted_date": "2022-08-22",
      "last_synced_at": "2026-10-17T21:01:20.475Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05510778"
    },
    {
      "nct_id": "NCT07155317",
      "title": "Time-of-Day Specified Immunotherapy for Advanced Melanoma, The TIME Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Acral Melanoma",
        "Advanced Cutaneous Melanoma",
        "Advanced Mucosal Melanoma",
        "Clinical Stage IV Cutaneous Melanoma AJCC v8",
        "Metastatic Acral Melanoma",
        "Metastatic Cutaneous Melanoma",
        "Metastatic Mucosal Melanoma",
        "Unresectable Acral Melanoma",
        "Unresectable Cutaneous Melanoma",
        "Unresectable Mucosal Melanoma"
      ],
      "interventions": [
        {
          "name": "Biopsy Procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Medical Device Usage and Evaluation",
          "type": "OTHER"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 99,
      "start_date": "2025-10-29",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-11-12",
      "last_synced_at": "2026-10-17T21:01:20.475Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07155317"
    },
    {
      "nct_id": "NCT03761706",
      "title": "Impact of Home-based Aerobic and Strength Exercises During Chemotherapy for Early Breast Cancer on Biomarkers of Aging",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Engagement in Physical Activity",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Questionnaires",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "UNC Lineberger Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "99 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 99 Years · Female only"
      },
      "enrollment_count": 132,
      "start_date": "2018-02-28",
      "completion_date": "2025-02-01",
      "has_results": false,
      "last_update_posted_date": "2025-04-01",
      "last_synced_at": "2026-10-17T21:01:20.475Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03761706"
    },
    {
      "nct_id": "NCT04251052",
      "title": "A Study to Compare Two Surgical Procedures in Individuals With BRCA1 Mutations to Assess Reduced Risk of Ovarian Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ovarian Carcinoma"
      ],
      "interventions": [
        {
          "name": "Bilateral Salpingectomy",
          "type": "PROCEDURE"
        },
        {
          "name": "Bilateral Salpingectomy with Oophorectomy",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Transvaginal Ultrasound",
          "type": "PROCEDURE"
        },
        {
          "name": "Ultrasound Imaging",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "NRG Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "35 Years to 50 Years · Female only"
      },
      "enrollment_count": 1956,
      "start_date": "2020-09-01",
      "completion_date": "2047-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-07",
      "last_synced_at": "2026-10-17T21:01:20.475Z",
      "location_count": 564,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Goodyear, Arizona + 372 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04251052"
    },
    {
      "nct_id": "NCT03902535",
      "title": "Geriatric and Quality of Life Assessments in Older Patients With Non-metastatic or Metastatic Head and Neck or Lung Cancer Undergoing Surgery or Chemoradiation and Their Caregivers",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Caregiver",
        "Head and Neck Carcinoma",
        "Lung Carcinoma",
        "Metastatic Head and Neck Carcinoma",
        "Metastatic Lung Carcinoma",
        "Stage 0 Lung Cancer AJCC v8",
        "Stage I Lung Cancer AJCC v8",
        "Stage IA1 Lung Cancer AJCC v8",
        "Stage IA2 Lung Cancer AJCC v8",
        "Stage IA3 Lung Cancer AJCC v8",
        "Stage IB Lung Cancer AJCC v8",
        "Stage II Lung Cancer AJCC v8",
        "Stage IIA Lung Cancer AJCC v8",
        "Stage IIB Lung Cancer AJCC v8",
        "Stage III Lung Cancer AJCC v8",
        "Stage IIIA Lung Cancer AJCC v8",
        "Stage IIIB Lung Cancer AJCC v8",
        "Stage IIIC Lung Cancer AJCC v8",
        "Stage IV Lung Cancer AJCC v8",
        "Stage IVA Lung Cancer AJCC v8",
        "Stage IVB Lung Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Comprehensive Geriatric Assessment",
          "type": "OTHER"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "City of Hope Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2019-03-08",
      "completion_date": "2022-06-17",
      "has_results": false,
      "last_update_posted_date": "2023-02-24",
      "last_synced_at": "2026-10-17T21:01:20.475Z",
      "location_count": 1,
      "location_summary": "Duarte, California",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03902535"
    },
    {
      "nct_id": "NCT02923908",
      "title": "Recording Facial Expressions to Assess Taste in Children and Teenagers",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Facial Expression"
      ],
      "interventions": [
        {
          "name": "Noldus Facereader 7",
          "type": "OTHER"
        },
        {
          "name": "Voice Recording",
          "type": "OTHER"
        },
        {
          "name": "5-Point Facial Hedonic Scale",
          "type": "OTHER"
        },
        {
          "name": "Follow-Up Questionnaire",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Arkansas Children's Hospital Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "7 Years to 16 Years"
      },
      "enrollment_count": 12,
      "start_date": "2016-12",
      "completion_date": "2017-06-01",
      "has_results": false,
      "last_update_posted_date": "2018-04-10",
      "last_synced_at": "2026-10-17T21:01:20.475Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02923908"
    },
    {
      "nct_id": "NCT02428504",
      "title": "Decision Making in End of Life as Individual Preferences",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Terminal Diseases"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "St. Luke's-Roosevelt Hospital Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 148,
      "start_date": "2012-06",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2016-03-09",
      "last_synced_at": "2026-10-17T21:01:20.475Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02428504"
    },
    {
      "nct_id": "NCT03007147",
      "title": "Imatinib Mesylate and Combination Chemotherapy in Treating Patients With Newly Diagnosed Philadelphia Chromosome Positive Acute Lymphoblastic Leukemia",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Acute Lymphoblastic Leukemia",
        "B Acute Lymphoblastic Leukemia",
        "Mixed Phenotype Acute Leukemia",
        "T Acute Lymphoblastic Leukemia"
      ],
      "interventions": [
        {
          "name": "Allogeneic Hematopoietic Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Calaspargase Pegol",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Daunorubicin Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Dexrazoxane Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ifosfamide",
          "type": "DRUG"
        },
        {
          "name": "Imatinib Mesylate",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Leucovorin Calcium",
          "type": "DRUG"
        },
        {
          "name": "Levoleucovorin",
          "type": "DRUG"
        },
        {
          "name": "Mercaptopurine",
          "type": "DRUG"
        },
        {
          "name": "Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "Methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "Pegaspargase",
          "type": "DRUG"
        },
        {
          "name": "Prednisolone",
          "type": "DRUG"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Therapeutic Hydrocortisone",
          "type": "DRUG"
        },
        {
          "name": "Thioguanine",
          "type": "DRUG"
        },
        {
          "name": "Vincristine Sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "1 Year to 21 Years"
      },
      "enrollment_count": 352,
      "start_date": "2017-08-08",
      "completion_date": "2034-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-10-05",
      "last_synced_at": "2026-10-17T21:01:20.475Z",
      "location_count": 184,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 145 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03007147"
    },
    {
      "nct_id": "NCT03539978",
      "title": "Peds SM-THINk: Nursing Interventions to Improve Discharge Outcomes",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pediatric ALL"
      ],
      "interventions": [
        {
          "name": "SM-THINk",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Medical College of Wisconsin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "Up to 100 Years"
      },
      "enrollment_count": 486,
      "start_date": "2018-08-30",
      "completion_date": "2019-04-20",
      "has_results": false,
      "last_update_posted_date": "2019-12-12",
      "last_synced_at": "2026-10-17T21:01:20.475Z",
      "location_count": 1,
      "location_summary": "Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03539978"
    },
    {
      "nct_id": "NCT03490968",
      "title": "The Impact of Branched-Chain Amino Acid Metabolism on Limb Dysfunction in PAD",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Peripheral Arterial Disease"
      ],
      "interventions": [
        {
          "name": "Supervised Exercise",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Vascular Assessment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2018-05-22",
      "completion_date": "2023-08-22",
      "has_results": false,
      "last_update_posted_date": "2024-02-29",
      "last_synced_at": "2026-10-17T21:01:20.475Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03490968"
    }
  ]
}