{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+Analogue+Scale&page=2",
    "query": {
      "intervention": "Visual Analogue Scale",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+Analogue+Scale&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T21:07:23.189Z",
  "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": "NCT03030443",
      "title": "Patient Preferences in Anesthesia for Abortion Care",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pregnancy Termination in First Trimester"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of New Mexico",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 29,
      "start_date": "2017-04-04",
      "completion_date": "2022-02-23",
      "has_results": false,
      "last_update_posted_date": "2023-05-31",
      "last_synced_at": "2026-09-03T21:07:23.189Z",
      "location_count": 1,
      "location_summary": "Albuquerque, New Mexico",
      "locations": [
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03030443"
    },
    {
      "nct_id": "NCT06477965",
      "title": "Embo Registry; National Registry for Artery Embolization",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Pain",
        "Osteoarthritis, Knee",
        "Osteoarthritis Thumb",
        "Osteoarthritis Shoulder",
        "Pain, Chronic",
        "Tendonitis Elbow",
        "Tendonitis Shoulder",
        "Tendonitis;Achilles",
        "Tenosynovitis"
      ],
      "interventions": [
        {
          "name": "Artery Embolization",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Vascular Solutions of North Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2024-07-15",
      "completion_date": "2029-07-15",
      "has_results": false,
      "last_update_posted_date": "2024-10-28",
      "last_synced_at": "2026-09-03T21:07:23.189Z",
      "location_count": 2,
      "location_summary": "Cary, North Carolina • Winchester, Tennessee",
      "locations": [
        {
          "city": "Cary",
          "state": "North Carolina"
        },
        {
          "city": "Winchester",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06477965"
    },
    {
      "nct_id": "NCT05230407",
      "title": "Does BMI Influence Pain Follow vNOTE Surgery",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obese",
        "Surgery",
        "Pain, Postoperative"
      ],
      "interventions": [
        {
          "name": "Visual analog scale (VAS) assesment of pain",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 80 Years · Female only"
      },
      "enrollment_count": 64,
      "start_date": "2022-02-05",
      "completion_date": "2024-05-18",
      "has_results": false,
      "last_update_posted_date": "2024-11-14",
      "last_synced_at": "2026-09-03T21:07:23.189Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05230407"
    },
    {
      "nct_id": "NCT07600281",
      "title": "Ultra-Processed Foods, Palatability, Appetite, and Gastrointestinal Transit",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Appetite",
        "Gastrointestinal Transit",
        "Food Processing",
        "Food Palatability",
        "Eating Behavior"
      ],
      "interventions": [
        {
          "name": "Palatable Ultra-Processed Food Meal",
          "type": "OTHER"
        },
        {
          "name": "Unpalatable Ultra-Processed Food Meal",
          "type": "OTHER"
        },
        {
          "name": "Palatable Non-Ultra-Processed Food Meal",
          "type": "OTHER"
        },
        {
          "name": "Unpalatable Non-Ultra-Processed Food Meal",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Purdue University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 40,
      "start_date": "2024-09-24",
      "completion_date": "2026-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-09-03T21:07:23.189Z",
      "location_count": 1,
      "location_summary": "West Lafayette, Indiana",
      "locations": [
        {
          "city": "West Lafayette",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07600281"
    },
    {
      "nct_id": "NCT01755065",
      "title": "Clinical Meaning of Visual Analog Scales(VAS) for Teenage Pediatric Patients Undergoing Laparoscopic Surgical Procedures",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Postoperative Pain"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "11 Years to 17 Years"
      },
      "enrollment_count": 206,
      "start_date": "2012-12",
      "completion_date": "2015-11",
      "has_results": false,
      "last_update_posted_date": "2017-10-19",
      "last_synced_at": "2026-09-03T21:07:23.189Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01755065"
    },
    {
      "nct_id": "NCT00088686",
      "title": "Capsaicin to Control Pain Following Third Molar Extraction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Healthy",
        "Tooth Extraction"
      ],
      "interventions": [
        {
          "name": "Capsaicin (Intramucosal Injection)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Dental and Craniofacial Research (NIDCR)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 75,
      "start_date": "2004-07",
      "completion_date": "2005-10",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-09-03T21:07:23.189Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00088686"
    },
    {
      "nct_id": "NCT06266728",
      "title": "T30 for Astigmatism in Digital Device Users",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Contact Lens Complication",
        "Astigmatism",
        "Refractive Errors"
      ],
      "interventions": [
        {
          "name": "Total30 for Astigmatism Contact Lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Southern College of Optometry",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 48,
      "start_date": "2024-03-15",
      "completion_date": "2024-08-18",
      "has_results": false,
      "last_update_posted_date": "2025-02-24",
      "last_synced_at": "2026-09-03T21:07:23.189Z",
      "location_count": 2,
      "location_summary": "Pittsburg, Kansas • Coldwater, Mississippi",
      "locations": [
        {
          "city": "Pittsburg",
          "state": "Kansas"
        },
        {
          "city": "Coldwater",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06266728"
    },
    {
      "nct_id": "NCT01343784",
      "title": "Assessment of Voiding After Sling",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Post-operative Voiding"
      ],
      "interventions": [
        {
          "name": "Urinary voiding assessment after midurethral sling",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "81 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 81 Years · Female only"
      },
      "enrollment_count": 105,
      "start_date": "2011-04",
      "completion_date": "2013-12",
      "has_results": false,
      "last_update_posted_date": "2014-02-19",
      "last_synced_at": "2026-09-03T21:07:23.189Z",
      "location_count": 2,
      "location_summary": "Beachwood, Ohio • Mayfield Heights, Ohio",
      "locations": [
        {
          "city": "Beachwood",
          "state": "Ohio"
        },
        {
          "city": "Mayfield Heights",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01343784"
    },
    {
      "nct_id": "NCT07793552",
      "title": "Needlefree Lidocaine Application for Vulvar Biopsies",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vulvar Cancers",
        "Vulva Neoplasm",
        "Vulvar Dysplasia"
      ],
      "interventions": [
        {
          "name": "J-Tip",
          "type": "DEVICE"
        },
        {
          "name": "Lidocaine HCl 1%",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Tufts Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 106,
      "start_date": "2026-11",
      "completion_date": "2030-11",
      "has_results": false,
      "last_update_posted_date": "2026-08-28",
      "last_synced_at": "2026-09-03T21:07:23.189Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07793552"
    },
    {
      "nct_id": "NCT03686735",
      "title": "Patient Satisfaction Scales",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "All Orthopedic Disorders",
        "New or Follow-up Patients"
      ],
      "interventions": [
        {
          "name": "5 anchors and numbers",
          "type": "OTHER"
        },
        {
          "name": "5 anchors and no numbers",
          "type": "OTHER"
        },
        {
          "name": "Visual analog scale with 3 anchors and numbers",
          "type": "OTHER"
        },
        {
          "name": "Visual analog scale with 3 anchors and no numbers",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Texas at Austin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 256,
      "start_date": "2018-06-22",
      "completion_date": "2019-03-02",
      "has_results": false,
      "last_update_posted_date": "2019-03-08",
      "last_synced_at": "2026-09-03T21:07:23.189Z",
      "location_count": 6,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        },
        {
          "city": "Austin",
          "state": "Texas"
        },
        {
          "city": "Austin",
          "state": "Texas"
        },
        {
          "city": "Austin",
          "state": "Texas"
        },
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03686735"
    }
  ]
}