{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Adult+Onset+Rheumatoid+Arthritis",
    "query": {
      "condition": "Adult Onset Rheumatoid Arthritis"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 8,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-23T16:27:06.314Z",
  "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": "NCT06405152",
      "title": "Assessment of Macrophage Activation syndromE in STill's Disease",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Macrophage Activation Syndrome",
        "Still's Disease, Adult-Onset",
        "Stills Disease, Juvenile-Onset"
      ],
      "interventions": [
        {
          "name": "Chart review",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Swedish Orphan Biovitrum",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "6 Months to 80 Years"
      },
      "enrollment_count": 75,
      "start_date": "2023-09-27",
      "completion_date": "2024-09-26",
      "has_results": false,
      "last_update_posted_date": "2024-10-21",
      "last_synced_at": "2026-09-23T16:27:06.314Z",
      "location_count": 4,
      "location_summary": "Los Angeles, California • Atlanta, Georgia • Cincinnati, Ohio + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06405152"
    },
    {
      "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": "2026-09-23T16:27:06.314Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04402086"
    },
    {
      "nct_id": "NCT03311854",
      "title": "A Study to Investigate the Safety and Efficacy of Emapalumab, an Anti-IFN-gamma mAb in Patients With Systemic Juvenile Idiopathic Arthritis (sJIA) or Adult-onset Still's Disease (AOSD) Developing Macrophage Activation Syndrome/Secondary HLH (MAS/sHLH)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Macrophage Activation Syndrome",
        "Lymphohistiocytosis, Hemophagocytic",
        "Arthritis, Juvenile",
        "Adult Onset Still Disease"
      ],
      "interventions": [
        {
          "name": "Emapalumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Swedish Orphan Biovitrum",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "0 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "0 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2018-02-20",
      "completion_date": "2020-05-19",
      "has_results": true,
      "last_update_posted_date": "2022-05-17",
      "last_synced_at": "2026-09-23T16:27:06.314Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03311854"
    },
    {
      "nct_id": "NCT02780388",
      "title": "A Phase 1b Study of MEDI4920 in Participants With Adult-onset Rheumatoid Arthritis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Adult Onset Rheumatoid Arthritis"
      ],
      "interventions": [
        {
          "name": "VIB4920",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Amgen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 57,
      "start_date": "2016-05-12",
      "completion_date": "2018-08-09",
      "has_results": true,
      "last_update_posted_date": "2024-12-27",
      "last_synced_at": "2026-09-23T16:27:06.314Z",
      "location_count": 8,
      "location_summary": "Anniston, Alabama • DeBary, Florida • Jacksonville, Florida + 5 more",
      "locations": [
        {
          "city": "Anniston",
          "state": "Alabama"
        },
        {
          "city": "DeBary",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Miami Lakes",
          "state": "Florida"
        },
        {
          "city": "South Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02780388"
    },
    {
      "nct_id": "NCT03510442",
      "title": "Natural History, Genetics, and Pathophysiology of Systemic Juvenile Idiopathic Arthritis, Adult-Onset Still's Disease, and Related Conditions",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Still's Disease, Adult-Onset",
        "Systemic Inflammation",
        "Arthritis",
        "Autoinflammatory Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "1 Day",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "1 Day to 100 Years"
      },
      "enrollment_count": 2000,
      "start_date": "2018-05-21",
      "completion_date": "2050-01-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-01",
      "last_synced_at": "2026-09-23T16:27:06.314Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03510442"
    },
    {
      "nct_id": "NCT03265132",
      "title": "A Study to Evaluate Efficacy and Safety of Anakinra in the Treatment of Still's Disease (SJIA and AOSD)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Still's Disease, Adult-Onset",
        "Still's Disease, Juvenile-Onset"
      ],
      "interventions": [
        {
          "name": "anakinra",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Swedish Orphan Biovitrum",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 13,
      "start_date": "2017-09-26",
      "completion_date": "2019-05-23",
      "has_results": true,
      "last_update_posted_date": "2021-06-30",
      "last_synced_at": "2026-09-23T16:27:06.314Z",
      "location_count": 36,
      "location_summary": "Birmingham, Alabama • Beverly Hills, California • San Diego, California + 29 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03265132"
    },
    {
      "nct_id": "NCT00094900",
      "title": "Interleukin-1 Trap to Treat Autoinflammatory Diseases",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Inflammation",
        "Familial Mediterranean Fever",
        "Still's Disease, Adult-Onset"
      ],
      "interventions": [
        {
          "name": "IL-1 Trap",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2004-10",
      "completion_date": "2010-12",
      "has_results": true,
      "last_update_posted_date": "2014-03-04",
      "last_synced_at": "2026-09-23T16:27:06.314Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00094900"
    },
    {
      "nct_id": "NCT04752371",
      "title": "A Study to Evaluate Camoteskimab in Participants With Still's Disease",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Adult Onset Still's Disease"
      ],
      "interventions": [
        {
          "name": "Camoteskimab (CERC-007, AVTX-007, AEVI-007)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Apollo Therapeutics Ltd",
      "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": 5,
      "start_date": "2021-03-25",
      "completion_date": "2022-05-24",
      "has_results": false,
      "last_update_posted_date": "2023-08-23",
      "last_synced_at": "2026-09-23T16:27:06.314Z",
      "location_count": 2,
      "location_summary": "Gainesville, Florida • Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04752371"
    }
  ]
}