{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Numerical+rate+Scale+%28NRS%29&page=2",
    "query": {
      "intervention": "Numerical rate Scale (NRS)",
      "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=Numerical+rate+Scale+%28NRS%29&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-20T19:38:04.548Z",
  "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": "NCT05934708",
      "title": "Examining the Role of Female Endogenous Sex Hormones in Eccentric Exercise",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Inflammatory Response"
      ],
      "interventions": [
        {
          "name": "Eccentric leg extension",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 35 Years · Female only"
      },
      "enrollment_count": 30,
      "start_date": "2025-03-07",
      "completion_date": "2026-08",
      "has_results": false,
      "last_update_posted_date": "2026-03-25",
      "last_synced_at": "2026-09-20T19:38:04.548Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05934708"
    },
    {
      "nct_id": "NCT07308873",
      "title": "Individual Differences in Gait and Osteoarthritis Pain",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Knee Osteoarthritis (OA)",
        "Chronic Pain",
        "Chronic Knee Pain"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "45 Years to 80 Years"
      },
      "enrollment_count": 300,
      "start_date": "2026-01-07",
      "completion_date": "2030-08-01",
      "has_results": false,
      "last_update_posted_date": "2026-01-29",
      "last_synced_at": "2026-09-20T19:38:04.548Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07308873"
    },
    {
      "nct_id": "NCT04585451",
      "title": "Expanded Development of a Medical Device Utilizing an EEG-Based Algorithm for the Objective Quantification of Pain",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "ALGOS System",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "PainQx, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 334,
      "start_date": "2020-07-23",
      "completion_date": "2022-01-05",
      "has_results": true,
      "last_update_posted_date": "2023-05-06",
      "last_synced_at": "2026-09-20T19:38:04.548Z",
      "location_count": 5,
      "location_summary": "Golden, Colorado • New Hyde Park, New York • New York, New York + 1 more",
      "locations": [
        {
          "city": "Golden",
          "state": "Colorado"
        },
        {
          "city": "New Hyde Park",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Valley Stream",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04585451"
    },
    {
      "nct_id": "NCT02420041",
      "title": "Comparing the Effects of Ultrasound Versus Fluoroscopy for Sacroiliac Joint Injections",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sacroiliitis"
      ],
      "interventions": [
        {
          "name": "Active comparator: Fluoroscopic Guided SIJ injection",
          "type": "PROCEDURE"
        },
        {
          "name": "Ultrasound Guided Sacroiliac Joint Injection",
          "type": "PROCEDURE"
        },
        {
          "name": "Havel's Inc. EchoStim (facet tip) 21 Gauge 4\" needle",
          "type": "DEVICE"
        },
        {
          "name": "SonoSite S-nerve",
          "type": "DEVICE"
        },
        {
          "name": "iohexol",
          "type": "DEVICE"
        },
        {
          "name": "triamcinolone/lidocaine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "United States Naval Medical Center, San Diego",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2012-10",
      "completion_date": "2014-03",
      "has_results": true,
      "last_update_posted_date": "2015-11-13",
      "last_synced_at": "2026-09-20T19:38:04.548Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02420041"
    },
    {
      "nct_id": "NCT05461092",
      "title": "Regional Nerve Blocks to Improve Analgesia and Recovery in Older Adults Undergoing Spinal Fusion",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Delirium",
        "Pain, Back",
        "Spinal Fusion",
        "Thoracolumbar Interfascial Plane Block"
      ],
      "interventions": [
        {
          "name": "Thoracolumbar Interfascial Plane (TLIP) Block of bupivacaine",
          "type": "DRUG"
        },
        {
          "name": "Blood Test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "3D CAM Delirium Severity Scoring",
          "type": "OTHER"
        },
        {
          "name": "Generalized Anxiety Disorder 7-item (GAD-7) scale",
          "type": "OTHER"
        },
        {
          "name": "Numerical Rating Score (NRS)",
          "type": "OTHER"
        },
        {
          "name": "PROMIS-Pain Interference",
          "type": "OTHER"
        },
        {
          "name": "Oswestry Disability Index (ODI)",
          "type": "OTHER"
        },
        {
          "name": "Saint Louis University Mental Status Examination (SLUMs)",
          "type": "OTHER"
        },
        {
          "name": "Delirium Rating Scale-Revised-98 (DRS)",
          "type": "OTHER"
        },
        {
          "name": "Telephone Interview for Cognitive Status - Modified (TICS-M)",
          "type": "OTHER"
        },
        {
          "name": "Opioid Equivalents measured by Morphine Milligram Equivalents (MME)",
          "type": "OTHER"
        },
        {
          "name": "Patient Health Questionnaire depression scale (PHQ-8)",
          "type": "OTHER"
        },
        {
          "name": "Pain Catastrophizing",
          "type": "OTHER"
        },
        {
          "name": "Fear Avoidance Beliefs Questionnaire (FABQ)",
          "type": "OTHER"
        },
        {
          "name": "Opioid Side Effects and Likeability Questionnaire",
          "type": "OTHER"
        },
        {
          "name": "Daily Pain Trajectory",
          "type": "OTHER"
        },
        {
          "name": "Tampa Scale of Kinesiophobia",
          "type": "OTHER"
        },
        {
          "name": "Quality of Recovery 15",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "University of Iowa",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2024-01-01",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-03-27",
      "last_synced_at": "2026-09-20T19:38:04.548Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05461092"
    },
    {
      "nct_id": "NCT00997867",
      "title": "Perineural Catheter Insertion Distance for Continuous Peripheral Nerve Blocks",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Lower Extremity Surgery",
        "Upper Extremity Surgery",
        "Post-operative Pain"
      ],
      "interventions": [
        {
          "name": "Sciatic catheter left 0-1cm past needle tip vs. 5-6cm past needle tip",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 350,
      "start_date": "2009-11",
      "completion_date": "2010-10",
      "has_results": false,
      "last_update_posted_date": "2010-10-28",
      "last_synced_at": "2026-09-20T19:38:04.548Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00997867"
    },
    {
      "nct_id": "NCT05482919",
      "title": "The Adolescent Surgery Experience: A Mixed Methods Analysis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pain, Postoperative",
        "Pain",
        "Pain, Acute",
        "Pain, Chronic",
        "Adolescent Behavior",
        "Opioid Use"
      ],
      "interventions": [
        {
          "name": "Baseline Survey",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Post Operative Surveys",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Qualitative Interviews",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "11 Years to 21 Years"
      },
      "enrollment_count": 501,
      "start_date": "2022-06-14",
      "completion_date": "2023-10-15",
      "has_results": false,
      "last_update_posted_date": "2024-09-26",
      "last_synced_at": "2026-09-20T19:38:04.548Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05482919"
    },
    {
      "nct_id": "NCT00707057",
      "title": "Ibuprofen Extended-Release Dental Pain Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pain",
        "Post-Operative Pain",
        "Third Molar Extraction"
      ],
      "interventions": [
        {
          "name": "Ibuprofen 600 mg Extended-Release Tablets",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "SCOLR Pharma, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "16 Years to 45 Years"
      },
      "enrollment_count": 256,
      "start_date": "2008-06",
      "completion_date": "2008-10",
      "has_results": true,
      "last_update_posted_date": "2011-03-24",
      "last_synced_at": "2026-09-20T19:38:04.548Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00707057"
    },
    {
      "nct_id": "NCT02422329",
      "title": "Changes in Patient Reported Constipation Among Advanced Cancer Patients After Receiving an Educational Intervention",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Advanced Cancers"
      ],
      "interventions": [
        {
          "name": "Questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Video",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Fact Sheet",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 59,
      "start_date": "2015-04-30",
      "completion_date": "2018-03-07",
      "has_results": false,
      "last_update_posted_date": "2018-03-22",
      "last_synced_at": "2026-09-20T19:38:04.548Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02422329"
    },
    {
      "nct_id": "NCT05489822",
      "title": "PMCF Study to Evaluate the VERTICALE® Cervical System in Spine Surgery According to Its Intended Use.",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Degenerative Disc Disease (DDD)",
        "Instabilities",
        "Trauma",
        "Deformity"
      ],
      "interventions": [
        {
          "name": "VERTICALE® Cervical System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Silony Medical GmbH",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4,
      "start_date": "2023-01-13",
      "completion_date": "2024-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-11",
      "last_synced_at": "2026-09-20T19:38:04.548Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05489822"
    }
  ]
}