{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Spondylarthritis&page=5",
    "query": {
      "condition": "Spondylarthritis",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 290,
    "total_pages": 29,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Spondylarthritis&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Spondylarthritis&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-15T07:22:53.846Z",
  "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": "NCT04402086",
      "title": "Rheumatology Patient Registry and Biorepository",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rheumatic Diseases",
        "Adult Onset Still Disease",
        "Ankylosing Spondylitis",
        "Psoriatic Arthritis",
        "Reactive Arthritis",
        "Antiphospholipid Syndrome",
        "Systemic Lupus Erythematosus",
        "Behcet Disease",
        "Dermatomyositis",
        "Polymyositis",
        "Giant Cell Arteritis",
        "Lyme Disease",
        "Mixed Connective Tissue Disease",
        "Polymyalgia Rheumatica",
        "Rheumatoid Arthritis",
        "Sarcoidosis",
        "Systemic Sclerosis",
        "Scleroderma",
        "Sjogren's Syndrome",
        "Undifferentiated Connective Tissue Diseases"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 5000,
      "start_date": "2020-08-04",
      "completion_date": "2030-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-13",
      "last_synced_at": "2026-11-15T07:22:53.846Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04402086"
    },
    {
      "nct_id": "NCT00085644",
      "title": "Human Anti-tumor Necrosis Factor (TNF) Monoclonal Antibody Adalimumab in Subjects With Active Ankylosing Spondylitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Ankylosing Spondylitis"
      ],
      "interventions": [
        {
          "name": "adalimumab (D2E7)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Abbott",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 315,
      "start_date": "2004-01",
      "completion_date": "2009-07",
      "has_results": true,
      "last_update_posted_date": "2011-04-21",
      "last_synced_at": "2026-11-15T07:22:53.846Z",
      "location_count": 22,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • San Francisco, California + 18 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00085644"
    },
    {
      "nct_id": "NCT06555562",
      "title": "Activating the Cholinergic Anti-Inflammatory Pathway in Healthy Volunteers and People With Inflammatory Arthritis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Psoriatic Arthritis",
        "Rheumatoid Arthritis",
        "Ankylosing Spondylitis"
      ],
      "interventions": [
        {
          "name": "Ultrasound Stimulation",
          "type": "DEVICE"
        },
        {
          "name": "Non-active ultrasound stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Surf Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "22 Years to 75 Years"
      },
      "enrollment_count": 16,
      "start_date": "2025-10-01",
      "completion_date": "2026-01-05",
      "has_results": false,
      "last_update_posted_date": "2026-01-07",
      "last_synced_at": "2026-11-15T07:22:53.846Z",
      "location_count": 2,
      "location_summary": "Austin, Texas • Houston, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06555562"
    },
    {
      "nct_id": "NCT06671483",
      "title": "A Study of Zasocitinib in Adults With Psoriatic Arthritis Who Have Not Taken Biologic Medicines",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Psoriatic Arthritis"
      ],
      "interventions": [
        {
          "name": "Zasocitinib",
          "type": "DRUG"
        },
        {
          "name": "Active Comparator",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Takeda",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1583,
      "start_date": "2025-03-03",
      "completion_date": "2028-01-28",
      "has_results": false,
      "last_update_posted_date": "2026-11-12",
      "last_synced_at": "2026-11-15T07:22:53.846Z",
      "location_count": 50,
      "location_summary": "Chandler, Arizona • Phoenix, Arizona • Fountain Valley, California + 44 more",
      "locations": [
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "La Mesa",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06671483"
    },
    {
      "nct_id": "NCT00001679",
      "title": "Prognostic Indicators and Determinants of the 2-5 Year Outcome in a Cohort of Early Synovitis Patients",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Arthritis, Reactive",
        "Arthritis, Rheumatoid",
        "Synovitis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 250,
      "start_date": "1998-08",
      "completion_date": "2000-06",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-11-15T07:22:53.846Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001679"
    },
    {
      "nct_id": "NCT05511519",
      "title": "Study of ATI-450 vs Placebo in Patients With Moderate to Severe Psoriatic Arthritis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Psoriatic Arthritis"
      ],
      "interventions": [
        {
          "name": "ATI-450",
          "type": "DRUG"
        },
        {
          "name": "Placebo Oral Tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Aclaris Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 47,
      "start_date": "2022-07-12",
      "completion_date": "2024-01-03",
      "has_results": false,
      "last_update_posted_date": "2024-11-27",
      "last_synced_at": "2026-11-15T07:22:53.846Z",
      "location_count": 8,
      "location_summary": "Miami Lakes, Florida • Tampa, Florida • Freehold, New Jersey + 5 more",
      "locations": [
        {
          "city": "Miami Lakes",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Freehold",
          "state": "New Jersey"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Perrysburg",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05511519"
    },
    {
      "nct_id": "NCT00811499",
      "title": "A Study of ARRY-371797 in Patients With Active Ankylosing Spondylitis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ankylosing Spondylitis"
      ],
      "interventions": [
        {
          "name": "ARRY-371797, p38 inhibitor; oral",
          "type": "DRUG"
        },
        {
          "name": "Placebo; oral",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2008-12-16",
      "completion_date": "2009-09-29",
      "has_results": false,
      "last_update_posted_date": "2020-10-19",
      "last_synced_at": "2026-11-15T07:22:53.846Z",
      "location_count": 7,
      "location_summary": "Los Angeles, California • Chicago, Illinois • Omaha, Nebraska + 4 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        },
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00811499"
    },
    {
      "nct_id": "NCT04115098",
      "title": "Individualizing Anti-Inflammatory Medications for Adults With Axial Spondyloarthritis: A Series of N-of 1 Trials",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Axial Spondyloarthritis"
      ],
      "interventions": [
        {
          "name": "Celecoxib",
          "type": "DRUG"
        },
        {
          "name": "Naproxen",
          "type": "DRUG"
        },
        {
          "name": "Meloxicam",
          "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": 42,
      "start_date": "2020-06-25",
      "completion_date": "2023-08-11",
      "has_results": true,
      "last_update_posted_date": "2025-08-13",
      "last_synced_at": "2026-11-15T07:22:53.846Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04115098"
    },
    {
      "nct_id": "NCT00320619",
      "title": "Epsilon-Aminocaproaic Acid to Reduce the Need for Blood Transfusions During and Following Spine Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Scoliosis",
        "Kyphosis",
        "Lordosis",
        "Spondylitis",
        "Spinal Stenosis"
      ],
      "interventions": [
        {
          "name": "Epsilon-Aminocaproic Acid (EACA)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 182,
      "start_date": "2000-09",
      "completion_date": "2006-02",
      "has_results": false,
      "last_update_posted_date": "2016-07-29",
      "last_synced_at": "2026-11-15T07:22:53.846Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00320619"
    },
    {
      "nct_id": "NCT03104400",
      "title": "A Study Comparing Upadacitinib (ABT-494) to Placebo and to Adalimumab in Participants With Psoriatic Arthritis Who Have an Inadequate Response to at Least One Non-Biologic Disease Modifying Anti-Rheumatic Drug (DMARD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Psoriatic Arthritis"
      ],
      "interventions": [
        {
          "name": "Adalimumab",
          "type": "DRUG"
        },
        {
          "name": "Upadacitinib",
          "type": "DRUG"
        },
        {
          "name": "Placebo to Upadacitinib",
          "type": "DRUG"
        },
        {
          "name": "Placebo to Adalimumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AbbVie",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1705,
      "start_date": "2017-04-27",
      "completion_date": "2024-09-09",
      "has_results": true,
      "last_update_posted_date": "2025-09-22",
      "last_synced_at": "2026-11-15T07:22:53.846Z",
      "location_count": 114,
      "location_summary": "Huntsville, Alabama • Peoria, Arizona • Phoenix, Arizona + 100 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03104400"
    }
  ]
}