{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Knee+Pain+Chronic&page=3",
    "query": {
      "condition": "Knee Pain Chronic",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 161,
    "total_pages": 17,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Knee+Pain+Chronic&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Knee+Pain+Chronic&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-04T01:48:49.398Z",
  "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": "NCT03028870",
      "title": "A Study to Evaluate the Analgesic Efficacy and Safety of V120083 in Subjects With Osteoarthritis (OA) of the Knee",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Osteo Arthritis Knee"
      ],
      "interventions": [
        {
          "name": "V120083",
          "type": "DRUG"
        },
        {
          "name": "Naproxen",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Purdue Pharma LP",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 291,
      "start_date": "2017-03-14",
      "completion_date": "2017-11-21",
      "has_results": true,
      "last_update_posted_date": "2019-02-12",
      "last_synced_at": "2026-10-04T01:48:49.398Z",
      "location_count": 30,
      "location_summary": "Birmingham, Alabama • Tuscumbia, Alabama • North Hollywood, California + 24 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Tuscumbia",
          "state": "Alabama"
        },
        {
          "city": "North Hollywood",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Marcos",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03028870"
    },
    {
      "nct_id": "NCT03660943",
      "title": "A Clinical Study to Test Efficacy and Safety of Repeat Doses of CNTX-4975-05 in Patients With Osteoarthritis Knee Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Osteoarthritis, Knee"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "CNTX-4975-05",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Centrexion Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "40 Years to 95 Years"
      },
      "enrollment_count": 332,
      "start_date": "2018-09-09",
      "completion_date": "2020-06-11",
      "has_results": true,
      "last_update_posted_date": "2022-07-21",
      "last_synced_at": "2026-10-04T01:48:49.398Z",
      "location_count": 30,
      "location_summary": "Glendale, Arizona • Phoenix, Arizona • Carmichael, California + 23 more",
      "locations": [
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Carmichael",
          "state": "California"
        },
        {
          "city": "El Cajon",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03660943"
    },
    {
      "nct_id": "NCT01390298",
      "title": "Pain and Function After Orthopedic Surgery",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "Observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Wake Forest University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 55,
      "start_date": "2011-07",
      "completion_date": "2017-05",
      "has_results": true,
      "last_update_posted_date": "2019-02-19",
      "last_synced_at": "2026-10-04T01:48:49.398Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01390298"
    },
    {
      "nct_id": "NCT01351805",
      "title": "Vitamin D and Fish Oil for Autoimmune Disease, Inflammation and Knee Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Autoimmune Diseases",
        "Systemic Inflammatory Process",
        "Knee Pain Chronic",
        "Osteoarthritis",
        "Rheumatoid Arthritis"
      ],
      "interventions": [
        {
          "name": "Fish Oil",
          "type": "DRUG"
        },
        {
          "name": "Vitamin D",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "placebo pill",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 25871,
      "start_date": "2010-07",
      "completion_date": "2025-02",
      "has_results": true,
      "last_update_posted_date": "2025-12-03",
      "last_synced_at": "2026-10-04T01:48:49.398Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01351805"
    },
    {
      "nct_id": "NCT06700109",
      "title": "INJECTABLE COLD ENERGY THERAPY FOR THE MANAGEMENT OF CHRONIC PAIN ASSOCIATED WITH OSTEOARTHRITIS OF THE KNEE",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis (OA) of the Knee"
      ],
      "interventions": [
        {
          "name": "Neural Ice",
          "type": "DEVICE"
        },
        {
          "name": "Triamcinolone acetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Brixton Biosciences, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "22 Years to 80 Years"
      },
      "enrollment_count": 263,
      "start_date": "2024-11-19",
      "completion_date": "2027-02-01",
      "has_results": false,
      "last_update_posted_date": "2025-10-28",
      "last_synced_at": "2026-10-04T01:48:49.398Z",
      "location_count": 15,
      "location_summary": "Larkspur, California • Washington D.C., District of Columbia • Gainesville, Florida + 12 more",
      "locations": [
        {
          "city": "Larkspur",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Johns Creek",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06700109"
    },
    {
      "nct_id": "NCT01434966",
      "title": "Changes in Quadriceps Function Following Local or Distant Interventions in Individuals With Patellofemoral Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Patellofemoral Pain Syndrome",
        "Chondromalacia Patellae",
        "Anterior Knee Pain Syndrome"
      ],
      "interventions": [
        {
          "name": "Lumbopelvic Manipulation",
          "type": "OTHER"
        },
        {
          "name": "TENS- Spine",
          "type": "OTHER"
        },
        {
          "name": "TENS- Knee",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Creighton University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "15 Years to 50 Years"
      },
      "enrollment_count": 47,
      "start_date": "2011-09",
      "completion_date": "2015-07",
      "has_results": false,
      "last_update_posted_date": "2015-12-14",
      "last_synced_at": "2026-10-04T01:48:49.398Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01434966"
    },
    {
      "nct_id": "NCT05821530",
      "title": "HFIT Versus TENS Study for Chronic Low Back and Knee Pain",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Pain",
        "Knee Pain Chronic",
        "Back Pain, Low"
      ],
      "interventions": [
        {
          "name": "HFIT",
          "type": "DEVICE"
        },
        {
          "name": "TENS",
          "type": "DEVICE"
        },
        {
          "name": "Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Hinge Health, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 325,
      "start_date": "2023-04-24",
      "completion_date": "2023-06-30",
      "has_results": false,
      "last_update_posted_date": "2023-06-08",
      "last_synced_at": "2026-10-04T01:48:49.398Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05821530"
    },
    {
      "nct_id": "NCT01404052",
      "title": "Effects of Transcranial Direct Current Stimulation (tDCS) and Transcranial Ultrasound on Osteoarthritis Pain of the Knee",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Pain",
        "Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Transcranial Direct Current Stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Spaulding Rehabilitation Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 38,
      "start_date": "2011-01",
      "completion_date": "2014-07-30",
      "has_results": false,
      "last_update_posted_date": "2020-04-24",
      "last_synced_at": "2026-10-04T01:48:49.398Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01404052"
    },
    {
      "nct_id": "NCT06493903",
      "title": "Positive Minds Strong Joints for Knee Osteoarthritis",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis, Knee"
      ],
      "interventions": [
        {
          "name": "Positive Minds, Strong Joints",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Boston University Charles River Campus",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 39,
      "start_date": "2025-02-17",
      "completion_date": "2026-12-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-11",
      "last_synced_at": "2026-10-04T01:48:49.398Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06493903"
    },
    {
      "nct_id": "NCT04472091",
      "title": "Genicular Artery Embolization (GAE) for Osteoarthritic Knee Pain",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Knee Osteoarthritis",
        "Knee Pain Chronic",
        "Knee Pain Swelling",
        "Knee Arthritis",
        "Arterial Occlusion"
      ],
      "interventions": [
        {
          "name": "Genicular artery embolization (GAE)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Andrew Picel",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2025-01-15",
      "completion_date": "2026-11-01",
      "has_results": false,
      "last_update_posted_date": "2025-02-24",
      "last_synced_at": "2026-10-04T01:48:49.398Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04472091"
    }
  ]
}