{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Study+questionnaires&page=6",
    "query": {
      "intervention": "Study questionnaires",
      "page": 6
    },
    "page_size": 10
  },
  "pagination": {
    "page": 6,
    "page_size": 10,
    "total_count": 3597,
    "total_pages": 360,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Study+questionnaires&page=7&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Study+questionnaires&page=5&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-25T23:27:15.667Z",
  "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": "NCT07579182",
      "title": "Hormones, Outcomes, and Pain Pathways in Exercise Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Breast Pain",
        "Mastalgia",
        "Back Pain",
        "Back Pain, Low",
        "Neck Pain",
        "Chest Pain",
        "Activity, Motor",
        "Healthy Aging",
        "Weight, Body",
        "Inflammation",
        "Gonadal Steroid Hormones",
        "Neuronal Plasticity",
        "Neuromuscular Manifestations"
      ],
      "interventions": [
        {
          "name": "Interventional Sports bra",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 60 Years · Female only"
      },
      "enrollment_count": 140,
      "start_date": "2026-05-17",
      "completion_date": "2029-09",
      "has_results": false,
      "last_update_posted_date": "2026-06-02",
      "last_synced_at": "2026-10-25T23:27:15.667Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07579182"
    },
    {
      "nct_id": "NCT06492642",
      "title": "Research Study on Patient Education for People With Chronic Low Back Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Low-back Pain"
      ],
      "interventions": [
        {
          "name": "Patient Education for Chronic Low Back Pain",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2024-09-05",
      "completion_date": "2025-01-28",
      "has_results": false,
      "last_update_posted_date": "2025-03-06",
      "last_synced_at": "2026-10-25T23:27:15.667Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06492642"
    },
    {
      "nct_id": "NCT02512874",
      "title": "Does Pulmonary Rehabilitation Improve Frailty?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Disease, Pulmonary"
      ],
      "interventions": [
        {
          "name": "Pulmonary Rehabilitation",
          "type": "OTHER"
        },
        {
          "name": "Dynamometer",
          "type": "DEVICE"
        },
        {
          "name": "DEXA",
          "type": "RADIATION"
        },
        {
          "name": "Gait Speed Test",
          "type": "OTHER"
        },
        {
          "name": "Activity Monitor",
          "type": "DEVICE"
        },
        {
          "name": "Questionnaires",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DEVICE",
        "RADIATION"
      ],
      "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": 65,
      "start_date": "2015-07-21",
      "completion_date": "2018-10-16",
      "has_results": true,
      "last_update_posted_date": "2020-06-23",
      "last_synced_at": "2026-10-25T23:27:15.667Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02512874"
    },
    {
      "nct_id": "NCT02061280",
      "title": "Use of Mobile Devices and the Internet to Streamline an Asthma Clinical Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "fluticasone/salmeterol 250/50 Dry Powder Inhaler",
          "type": "DRUG"
        },
        {
          "name": "fluticasone/salmeterol 100/50 Dry Powder Inhaler",
          "type": "DRUG"
        },
        {
          "name": "fluticasone 100mcg Dry Powder Inhaler",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Nemours Children's Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "12 Years to 17 Years"
      },
      "enrollment_count": 108,
      "start_date": "2013-10",
      "completion_date": "2017-02-17",
      "has_results": true,
      "last_update_posted_date": "2018-12-19",
      "last_synced_at": "2026-10-25T23:27:15.667Z",
      "location_count": 5,
      "location_summary": "Wilmington, Delaware • Jacksonville, Florida • Orlando, Florida + 2 more",
      "locations": [
        {
          "city": "Wilmington",
          "state": "Delaware"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Pensacola",
          "state": "Florida"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02061280"
    },
    {
      "nct_id": "NCT07421596",
      "title": "An 8-Week Study Evaluating Gut and Digestive Health After Use of a Dietary Supplement System",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Gastrointestinal Symptoms",
        "Digestive Health",
        "Gut Health"
      ],
      "interventions": [
        {
          "name": "PhytoPower 1 and PhytoPower 2",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "SF Research Institute, Inc.",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 50,
      "start_date": "2026-02-05",
      "completion_date": "2026-04-21",
      "has_results": false,
      "last_update_posted_date": "2026-02-24",
      "last_synced_at": "2026-10-25T23:27:15.667Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07421596"
    },
    {
      "nct_id": "NCT03152786",
      "title": "Propranolol Hydrochloride in Treating Patients With Prostate Cancer Undergoing Surgery",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Carcinoma"
      ],
      "interventions": [
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Propranolol Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "19 Years and older · Male only"
      },
      "enrollment_count": 46,
      "start_date": "2019-01-15",
      "completion_date": "2023-02-28",
      "has_results": true,
      "last_update_posted_date": "2026-08-03",
      "last_synced_at": "2026-10-25T23:27:15.667Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03152786"
    },
    {
      "nct_id": "NCT05811923",
      "title": "Changes in Metabolic Rate and Perceptual Indicators After Acute Ingestion of Paraxanthine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Metabolic Syndrome",
        "Caffeine"
      ],
      "interventions": [
        {
          "name": "Venous Blood Collection",
          "type": "OTHER"
        },
        {
          "name": "Resting Metabolic Rate Determination",
          "type": "OTHER"
        },
        {
          "name": "Mood State",
          "type": "OTHER"
        },
        {
          "name": "Visual Analog Scales",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Lindenwood University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "18 Years to 39 Years"
      },
      "enrollment_count": 20,
      "start_date": "2021-12-12",
      "completion_date": "2022-10-12",
      "has_results": false,
      "last_update_posted_date": "2023-04-13",
      "last_synced_at": "2026-10-25T23:27:15.667Z",
      "location_count": 1,
      "location_summary": "Saint Charles, Missouri",
      "locations": [
        {
          "city": "Saint Charles",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05811923"
    },
    {
      "nct_id": "NCT00823654",
      "title": "Serum Biomarkers to Characterize the Effects of Therapy on Ovarian Reserve in Premenopausal Women With Early-stage Breast Cancer or BRCA Mutations",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Blood draw and questionnaires",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "44 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 44 Years · Female only"
      },
      "enrollment_count": 609,
      "start_date": "2009-01",
      "completion_date": "2027-01",
      "has_results": false,
      "last_update_posted_date": "2026-10-16",
      "last_synced_at": "2026-10-25T23:27:15.667Z",
      "location_count": 8,
      "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00823654"
    },
    {
      "nct_id": "NCT05062161",
      "title": "Sleep Duration and Blood Pressure During Sleep",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Blood Pressure",
        "Hypertension",
        "Elevated Blood Pressure",
        "Sleep",
        "Short Sleep Phenotype"
      ],
      "interventions": [
        {
          "name": "Sleep hygiene/extension intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 66,
      "start_date": "2021-09-30",
      "completion_date": "2024-12-31",
      "has_results": true,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-10-25T23:27:15.667Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05062161"
    },
    {
      "nct_id": "NCT02737761",
      "title": "Researching Emotions And Cardiac Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Congestive Heart Failure",
        "Emotions",
        "Patient Compliance"
      ],
      "interventions": [
        {
          "name": "Qualitative Interview and Adherence Measurements",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "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": 30,
      "start_date": "2015-01",
      "completion_date": "2016-08",
      "has_results": false,
      "last_update_posted_date": "2016-10-27",
      "last_synced_at": "2026-10-25T23:27:15.667Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02737761"
    }
  ]
}