{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+Analogue+Scale&page=5",
    "query": {
      "intervention": "Visual Analogue Scale",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 151,
    "total_pages": 16,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+Analogue+Scale&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+Analogue+Scale&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-31T02:02:48.124Z",
  "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": "NCT02391714",
      "title": "Nitrous Oxide for Pain Management of Intrauterine Device (IUD) Insertion",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Contraception"
      ],
      "interventions": [
        {
          "name": "IUD insertion",
          "type": "PROCEDURE"
        },
        {
          "name": "Povidone-Iodine",
          "type": "DRUG"
        },
        {
          "name": "Chlorhexidine",
          "type": "DRUG"
        },
        {
          "name": "Oxygen",
          "type": "OTHER"
        },
        {
          "name": "Nitrous oxide",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of New Mexico",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "12 Years and older · Female only"
      },
      "enrollment_count": 80,
      "start_date": "2013-10",
      "completion_date": "2014-08",
      "has_results": true,
      "last_update_posted_date": "2016-02-03",
      "last_synced_at": "2026-10-31T02:02:48.124Z",
      "location_count": 1,
      "location_summary": "Albuquerque, New Mexico",
      "locations": [
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02391714"
    },
    {
      "nct_id": "NCT04838223",
      "title": "Neurosensory Abnormalities in SymptomAtic Ocular Surface Patients (NASA)",
      "overall_status": "SUSPENDED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Dry Eye",
        "Neuropathic Pain"
      ],
      "interventions": [
        {
          "name": "Hyperosmolar Response",
          "type": "OTHER"
        },
        {
          "name": "Proparacaine Challenge Test",
          "type": "OTHER"
        },
        {
          "name": "Contact Lens Dry Eye Questionnaire-8 (CLDEQ-8) Optional; only for Contact Lens Wearers",
          "type": "OTHER"
        },
        {
          "name": "Ocular Pain Assessment Survey (OPAS)",
          "type": "OTHER"
        },
        {
          "name": "Visual Analogue Questionnaire",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Tufts Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2021-07-02",
      "completion_date": "2026-07",
      "has_results": false,
      "last_update_posted_date": "2026-01-27",
      "last_synced_at": "2026-10-31T02:02:48.124Z",
      "location_count": 16,
      "location_summary": "Azusa, California • Pomona, California • San Francisco, California + 10 more",
      "locations": [
        {
          "city": "Azusa",
          "state": "California"
        },
        {
          "city": "Pomona",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04838223"
    },
    {
      "nct_id": "NCT03377088",
      "title": "Aromatherapy Randomization of Pain Management in Adults",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Back Pain",
        "Back Pain, Low",
        "Sciatica"
      ],
      "interventions": [
        {
          "name": "Rose oil",
          "type": "OTHER"
        },
        {
          "name": "Almond Oil",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Stony Brook University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "110 Years",
        "sex": "ALL",
        "summary": "18 Years to 110 Years"
      },
      "enrollment_count": 60,
      "start_date": "2017-12-11",
      "completion_date": "2024-02-28",
      "has_results": false,
      "last_update_posted_date": "2024-02-14",
      "last_synced_at": "2026-10-31T02:02:48.124Z",
      "location_count": 1,
      "location_summary": "Stony Brook, New York",
      "locations": [
        {
          "city": "Stony Brook",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03377088"
    },
    {
      "nct_id": "NCT00325377",
      "title": "The Effects of the MME Procedure on Chronic Low Back Pain",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Low Back Pain"
      ],
      "interventions": [
        {
          "name": "MME Procedure",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Advanced Magnetic Research Institute International",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "30 Years to 79 Years"
      },
      "enrollment_count": 100,
      "start_date": "2006-04",
      "completion_date": "2008-01",
      "has_results": false,
      "last_update_posted_date": "2007-07-10",
      "last_synced_at": "2026-10-31T02:02:48.124Z",
      "location_count": 5,
      "location_summary": "Tucson, Arizona • Sterling Heights, Michigan • Mocksville, North Carolina + 2 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Sterling Heights",
          "state": "Michigan"
        },
        {
          "city": "Mocksville",
          "state": "North Carolina"
        },
        {
          "city": "Toledo",
          "state": "Ohio"
        },
        {
          "city": "Renton",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00325377"
    },
    {
      "nct_id": "NCT04493658",
      "title": "Differential Diagnosis of Sjögren's Versus Non-Sjögren's Dry Eye",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Keratoconjunctivitis Sicca",
        "Dry Eye Syndromes",
        "Ocular Surface Disease",
        "Sjogren's Syndrome"
      ],
      "interventions": [
        {
          "name": "Questionnaires",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Tear fluid sampling",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Impression Cytology",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 92,
      "start_date": "2021-01-11",
      "completion_date": "2022-10-03",
      "has_results": false,
      "last_update_posted_date": "2023-01-05",
      "last_synced_at": "2026-10-31T02:02:48.124Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04493658"
    },
    {
      "nct_id": "NCT00006336",
      "title": "Sensory Training to Treat Focal Dystonia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Dystonic Disorder"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Neurological Disorders and Stroke (NINDS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 22,
      "start_date": "2000-09",
      "completion_date": "2001-11",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-10-31T02:02:48.124Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006336"
    },
    {
      "nct_id": "NCT00937365",
      "title": "Pregnancy-Related Low Back Pain and Complementary and Alternative Medicine (CAM) Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Low Back Pain"
      ],
      "interventions": [
        {
          "name": "Exercise",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Spinal Manipulation",
          "type": "PROCEDURE"
        },
        {
          "name": "Neuroemotional Technique (NET)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "PROCEDURE"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "49 Years",
        "sex": "FEMALE",
        "summary": "20 Years to 49 Years · Female only"
      },
      "enrollment_count": 64,
      "start_date": "2009-07",
      "completion_date": "2012-04",
      "has_results": false,
      "last_update_posted_date": "2019-12-18",
      "last_synced_at": "2026-10-31T02:02:48.124Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00937365"
    },
    {
      "nct_id": "NCT05244525",
      "title": "Subacromial Injection of Epinephrine Improves Visualization in Shoulder Arthroscopy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Shoulder Arthroscopy"
      ],
      "interventions": [
        {
          "name": "Bupivacaine with Epinephrine",
          "type": "DRUG"
        },
        {
          "name": "Bupivacaine alone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2022-03-14",
      "completion_date": "2022-08-31",
      "has_results": true,
      "last_update_posted_date": "2023-11-03",
      "last_synced_at": "2026-10-31T02:02:48.124Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05244525"
    },
    {
      "nct_id": "NCT03882723",
      "title": "Noninvasive Ventilation Masks Carbon Dioxide Clearance in Normal Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "CO2 Clearance",
        "Mask Comfort",
        "Rebreathing Exhaled Gas"
      ],
      "interventions": [
        {
          "name": "Evaluated 4 masks used for NIV with mechanical ventilators",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Rush University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 8,
      "start_date": "2018-03-30",
      "completion_date": "2019-08-30",
      "has_results": true,
      "last_update_posted_date": "2023-06-28",
      "last_synced_at": "2026-10-31T02:02:48.124Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03882723"
    },
    {
      "nct_id": "NCT04752384",
      "title": "Transdermal Buprenorphine for the Treatment of Radiation-Induced Mucositis Pain in Head and Neck Cancer Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Head and Neck Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Buprenorphine",
          "type": "DRUG"
        },
        {
          "name": "Tramadol",
          "type": "DRUG"
        },
        {
          "name": "Oral Mucositis (OM) Pain App",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Medical College of Wisconsin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 20,
      "start_date": "2021-07-08",
      "completion_date": "2024-04-04",
      "has_results": true,
      "last_update_posted_date": "2025-04-20",
      "last_synced_at": "2026-10-31T02:02:48.124Z",
      "location_count": 1,
      "location_summary": "Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04752384"
    }
  ]
}