{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Abatacept+Placebo",
    "query": {
      "intervention": "Abatacept Placebo"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 63,
    "total_pages": 7,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Abatacept+Placebo&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-18T02:24:44.818Z",
  "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": "NCT01860976",
      "title": "Efficacy and Safety of Subcutaneous Abatacept in Adults With Active Psoriatic Arthritis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Psoriatic Arthritis"
      ],
      "interventions": [
        {
          "name": "Abatacept",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 489,
      "start_date": "2013-06-17",
      "completion_date": "2020-06-30",
      "has_results": true,
      "last_update_posted_date": "2022-04-05",
      "last_synced_at": "2026-09-18T02:24:44.818Z",
      "location_count": 17,
      "location_summary": "Phoenix, Arizona • Colorado Springs, Colorado • Bridgeport, Connecticut + 14 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        },
        {
          "city": "Bridgeport",
          "state": "Connecticut"
        },
        {
          "city": "Trumbull",
          "state": "Connecticut"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01860976"
    },
    {
      "nct_id": "NCT03733067",
      "title": "Safety and Efficacy of Abatacept for Treating Chronic Cytopenia in Cytotoxic T-Lymphocyte Antigen 4 (CTLA4) Haploinsufficiency",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "CTLA4 Haploinsufficency",
        "Chronic Cytopenia"
      ],
      "interventions": [
        {
          "name": "abatacept",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "8 Years to 65 Years"
      },
      "enrollment_count": 0,
      "start_date": "2023-11-30",
      "completion_date": "2023-11-30",
      "has_results": false,
      "last_update_posted_date": "2023-12-04",
      "last_synced_at": "2026-09-18T02:24:44.818Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03733067"
    },
    {
      "nct_id": "NCT00505375",
      "title": "Intravenous CTLA4-lg Treatment in Recent Onset Type 1 Diabetes Mellitus",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Type 1 Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "CTLA-4 Ig",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "6 Years to 45 Years"
      },
      "enrollment_count": 112,
      "start_date": "2008-02",
      "completion_date": "2012-05",
      "has_results": true,
      "last_update_posted_date": "2020-05-06",
      "last_synced_at": "2026-09-18T02:24:44.818Z",
      "location_count": 12,
      "location_summary": "Los Angeles, California • San Francisco, California • Stanford, California + 9 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00505375"
    },
    {
      "nct_id": "NCT02053727",
      "title": "Abatacept vs Placebo in RA Patients With Hepatitis B on Entecavir Background",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Rheumatoid Arthritis",
        "Chronic Hepatitis B"
      ],
      "interventions": [
        {
          "name": "Abatacept",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2014-07",
      "completion_date": "2018-06-12",
      "has_results": false,
      "last_update_posted_date": "2020-11-16",
      "last_synced_at": "2026-09-18T02:24:44.818Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02053727"
    },
    {
      "nct_id": "NCT04186871",
      "title": "Study to Assess Safety and Effectiveness of Branebrutinib Treatment in Participants With Active Systemic Lupus Erythematosus or Primary Sjögren's Syndrome, or Branebrutinib Treatment Followed by Open-label Abatacept Treatment in Study Participants With Active Rheumatoid Arthritis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Autoimmune Disorder",
        "Rheumatoid Arthritis",
        "Systemic Lupus Erythematosus",
        "Primary Sjögren's Syndrome"
      ],
      "interventions": [
        {
          "name": "branebrutinib",
          "type": "DRUG"
        },
        {
          "name": "abatacept",
          "type": "DRUG"
        },
        {
          "name": "branebrutinib placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "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": 119,
      "start_date": "2020-01-07",
      "completion_date": "2022-12-05",
      "has_results": true,
      "last_update_posted_date": "2024-01-16",
      "last_synced_at": "2026-09-18T02:24:44.818Z",
      "location_count": 40,
      "location_summary": "Phoenix, Arizona • Covina, California • Encino, California + 35 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Covina",
          "state": "California"
        },
        {
          "city": "Encino",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Upland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04186871"
    },
    {
      "nct_id": "NCT04380740",
      "title": "Extended vs Short-term Abatacept Dosing for Graft Versus Host Disease Prophylaxis",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Graft Vs Host Disease"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Abatacept",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 160,
      "start_date": "2022-03-30",
      "completion_date": "2028-06",
      "has_results": false,
      "last_update_posted_date": "2026-05-11",
      "last_synced_at": "2026-09-18T02:24:44.818Z",
      "location_count": 15,
      "location_summary": "Duarte, California • Tampa, Florida • Atlanta, Georgia + 8 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04380740"
    },
    {
      "nct_id": "NCT03192969",
      "title": "A Study to Evaluate Efficacy and Safety of Subcutaneous Abatacept With Steroid Treatment Compared to Steroid Treatment Alone in Adults With Giant Cell Arteritis (GCA)",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Giant Cell Arteritis"
      ],
      "interventions": [
        {
          "name": "Abatacept",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Glucocorticoid Treatment",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2017-07-15",
      "completion_date": "2021-11-23",
      "has_results": false,
      "last_update_posted_date": "2017-07-12",
      "last_synced_at": "2026-09-18T02:24:44.818Z",
      "location_count": 13,
      "location_summary": "Phoenix, Arizona • Fullerton, California • West Hollywood, California + 10 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Fullerton",
          "state": "California"
        },
        {
          "city": "West Hollywood",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03192969"
    },
    {
      "nct_id": "NCT05335928",
      "title": "Abatacept in Immune Checkpoint Inhibitor Myocarditis",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Myocarditis Acute",
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Abatacept plus",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 390,
      "start_date": "2022-07-02",
      "completion_date": "2029-10-09",
      "has_results": false,
      "last_update_posted_date": "2026-08-20",
      "last_synced_at": "2026-09-18T02:24:44.818Z",
      "location_count": 29,
      "location_summary": "Los Angeles, California • Washington D.C., District of Columbia • Tampa, Florida + 21 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05335928"
    },
    {
      "nct_id": "NCT02108860",
      "title": "Abatacept for the Treatment of Relapsing, Non-Severe, Granulomatosis With Polyangiitis (Wegener's)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Granulomatosis With Polyangiitis (Wegener's)",
        "Granulomatosis With Polyangiitis",
        "Wegener's Granulomatosis",
        "ANCA-Associated Vasculitis"
      ],
      "interventions": [
        {
          "name": "Abatacept",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of South Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "15 Years and older"
      },
      "enrollment_count": 65,
      "start_date": "2015-04-25",
      "completion_date": "2023-12-20",
      "has_results": false,
      "last_update_posted_date": "2024-07-29",
      "last_synced_at": "2026-09-18T02:24:44.818Z",
      "location_count": 10,
      "location_summary": "Los Angeles, California • Tampa, Florida • Kansas City, Kansas + 7 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02108860"
    },
    {
      "nct_id": "NCT00254293",
      "title": "Study to Assess Steady-State Trough Concentrations, Safety, and Immunogenicity of Abatacept After Subcutaneous (SC) Administration to Subjects With Rheumatoid Arthritis (RA)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Rheumatoid Arthritis"
      ],
      "interventions": [
        {
          "name": "Abatacept or Placebo (both as IV & SC solution)",
          "type": "DRUG"
        },
        {
          "name": "Abatacept",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 87,
      "start_date": "2006-01",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2014-04-08",
      "last_synced_at": "2026-09-18T02:24:44.818Z",
      "location_count": 5,
      "location_summary": "Orlando, Florida • Atlanta, Georgia • New Orleans, Louisiana + 2 more",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00254293"
    }
  ]
}