{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+Analogue+Scale+%28VAS%29&page=2",
    "query": {
      "intervention": "Visual Analogue Scale (VAS)",
      "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+%28VAS%29&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-27T13:03:59.427Z",
  "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": "NCT03876158",
      "title": "Transitioning to a Valve -Gated Intrathecal Drug Delivery System (IDDS)",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Chronic Pain",
        "Intractable Pain",
        "Back Pain"
      ],
      "interventions": [
        {
          "name": "Prometra II Programmable Pump system(Flowonix Medical)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Rush University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "22 Years to 85 Years"
      },
      "enrollment_count": 0,
      "start_date": "2019-10",
      "completion_date": "2022-06",
      "has_results": false,
      "last_update_posted_date": "2020-03-12",
      "last_synced_at": "2026-09-27T13:03:59.427Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03876158"
    },
    {
      "nct_id": "NCT05742763",
      "title": "Platelet-Rich Plasma and the Effects of NSAIDs on Pain and Functional Scores in Knee Osteoarthritis",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Osteoarthritis of the Knee",
        "Degenerative Osteoarthritis",
        "Knee Pain Chronic"
      ],
      "interventions": [
        {
          "name": "Ibuprofen and PRP",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Acetaminophen and PRP",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Placebo and PRP",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "QC Kinetix LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2023-11-01",
      "completion_date": "2024-10-07",
      "has_results": false,
      "last_update_posted_date": "2024-10-09",
      "last_synced_at": "2026-09-27T13:03:59.427Z",
      "location_count": 1,
      "location_summary": "Charlotte, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05742763"
    },
    {
      "nct_id": "NCT05188248",
      "title": "A Pilot Study of the Immediate Effects of DLPFC tDCS on Attention Bias in Depression",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depression"
      ],
      "interventions": [
        {
          "name": "Transcranial direct current stimulation (tDCS)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 21,
      "start_date": "2021-12-15",
      "completion_date": "2022-12-14",
      "has_results": true,
      "last_update_posted_date": "2024-01-10",
      "last_synced_at": "2026-09-27T13:03:59.427Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05188248"
    },
    {
      "nct_id": "NCT03950817",
      "title": "Nebulized Sub-dissociative Dose Ketamine at Three Different Dosing Regimens for Treating Acute Pain in the Pediatric ED",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Nebulized Sub-dissociative Dose Ketamine at either 0.75 mg/kg",
          "type": "DRUG"
        },
        {
          "name": "Nebulized Sub-dissociative Dose Ketamine at 1 mg/kg",
          "type": "DRUG"
        },
        {
          "name": "Nebulized Sub-dissociative Dose Ketamine at 1.5 mg/kg.",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Antonios Likourezos",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "7 Years to 17 Years"
      },
      "enrollment_count": 80,
      "start_date": "2019-05-13",
      "completion_date": "2024-09-24",
      "has_results": true,
      "last_update_posted_date": "2025-11-12",
      "last_synced_at": "2026-09-27T13:03:59.427Z",
      "location_count": 1,
      "location_summary": "Brooklyn, New York",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03950817"
    },
    {
      "nct_id": "NCT03779659",
      "title": "Effectiveness of Synapse Transcutaneous Electronic Nerve Stimulation (TENS) During Dental Procedures Among Children",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dental Fear",
        "Anesthesia, Local",
        "Pediatric Dentistry"
      ],
      "interventions": [
        {
          "name": "Synapse TENS device",
          "type": "DEVICE"
        },
        {
          "name": "Topical anesthetic gel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Boston University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "14 Years",
        "sex": "ALL",
        "summary": "6 Years to 14 Years"
      },
      "enrollment_count": 0,
      "start_date": "2021-07",
      "completion_date": "2023-02",
      "has_results": false,
      "last_update_posted_date": "2021-06-08",
      "last_synced_at": "2026-09-27T13:03:59.427Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03779659"
    },
    {
      "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": "2026-09-27T13:03:59.427Z",
      "location_count": 1,
      "location_summary": "Saint Charles, Missouri",
      "locations": [
        {
          "city": "Saint Charles",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05811923"
    },
    {
      "nct_id": "NCT02658708",
      "title": "Bright Light on Fatigue in Women Being Treated for Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Breast Neoplasms",
        "Breast Cancer",
        "Cancer of Breast",
        "Cancer of the Breast"
      ],
      "interventions": [
        {
          "name": "Bright blue-green light using light visor cap",
          "type": "OTHER"
        },
        {
          "name": "Dim red light using light visor cap",
          "type": "OTHER"
        },
        {
          "name": "European Organization for Research and Treatment of Cancer-Quality of Life Questionnaire",
          "type": "OTHER"
        },
        {
          "name": "Epworth Sleepiness Scale",
          "type": "OTHER"
        },
        {
          "name": "Pittsburgh Sleep Quality Index",
          "type": "OTHER"
        },
        {
          "name": "Patient-Reported Outcomes Measurement Information System (PROMIS)-Sleep Disturbance",
          "type": "OTHER"
        },
        {
          "name": "Patient-Reported Outcomes Measurement Information System (PROMIS)-Cancer-Fatigue",
          "type": "OTHER"
        },
        {
          "name": "Digital foot candle datalogging light meter (Extech Instrument, Model SDL400)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Polysomnography (Easy Ambulatory 2 Cadwell, Kennewick, WA)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Horne-Ostberg Morningness-Eveningness Questionnaire",
          "type": "OTHER"
        },
        {
          "name": "Daily Fatigue and Sleep Log",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "21 Years and older · Female only"
      },
      "enrollment_count": 19,
      "start_date": "2015-10-12",
      "completion_date": "2017-05-09",
      "has_results": false,
      "last_update_posted_date": "2017-09-25",
      "last_synced_at": "2026-09-27T13:03:59.427Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02658708"
    },
    {
      "nct_id": "NCT02806297",
      "title": "Trial of the Effect of Timing of Cholecystectomy During Initial Admission for Mild Gallstone Pancreatitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pancreatitis"
      ],
      "interventions": [
        {
          "name": "Early cholecystectomy with IOC",
          "type": "PROCEDURE"
        },
        {
          "name": "Late cholecystectomy with IOC",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "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": 100,
      "start_date": "2016-06",
      "completion_date": "2018-08-11",
      "has_results": false,
      "last_update_posted_date": "2021-03-30",
      "last_synced_at": "2026-09-27T13:03:59.427Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02806297"
    },
    {
      "nct_id": "NCT05501366",
      "title": "Strategies to Augment Ketosis: Optimization of Ketone Delivery Strategies",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ketosis"
      ],
      "interventions": [
        {
          "name": "Ketone Supplement",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Beverage Tolerability Questionnaire (BTQ) and satiety visual analogue scale",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Blood Draw",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Breath Reading",
          "type": "OTHER"
        },
        {
          "name": "Heart Rate Variability",
          "type": "OTHER"
        },
        {
          "name": "CGM/CKM",
          "type": "OTHER"
        },
        {
          "name": "DXA",
          "type": "RADIATION"
        },
        {
          "name": "Urine Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "BEHAVIORAL",
        "BIOLOGICAL",
        "OTHER",
        "RADIATION"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "30 Years",
        "sex": "MALE",
        "summary": "20 Years to 30 Years · Male only"
      },
      "enrollment_count": 14,
      "start_date": "2023-06-05",
      "completion_date": "2027-09",
      "has_results": false,
      "last_update_posted_date": "2026-05-29",
      "last_synced_at": "2026-09-27T13:03:59.427Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05501366"
    },
    {
      "nct_id": "NCT06948890",
      "title": "Effect of Music on Cue Reactivity for Patients With Opioid Use Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Opioid Use Disorder"
      ],
      "interventions": [
        {
          "name": "Music intervention",
          "type": "OTHER"
        },
        {
          "name": "Silence",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2025-04-20",
      "completion_date": "2026-02-28",
      "has_results": false,
      "last_update_posted_date": "2026-03-04",
      "last_synced_at": "2026-09-27T13:03:59.427Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06948890"
    }
  ]
}