{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Allergen",
    "query": {
      "intervention": "Allergen"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 225,
    "total_pages": 23,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Allergen&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T22:42:04.533Z",
  "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": "NCT01723397",
      "title": "Effect of Nasaleze on Nasal Challenge With Allergen",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Allergic Rhinitis"
      ],
      "interventions": [
        {
          "name": "Nasaleze Spray",
          "type": "DRUG"
        },
        {
          "name": "Placebo spray",
          "type": "OTHER"
        },
        {
          "name": "Allergen",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "BIOLOGICAL"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 14,
      "start_date": "2012-11",
      "completion_date": "2014-07",
      "has_results": true,
      "last_update_posted_date": "2017-01-02",
      "last_synced_at": "2026-09-02T22:42:04.533Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01723397"
    },
    {
      "nct_id": "NCT01639846",
      "title": "Evaluation of the Onset and Duration of Action of RX-10045 in Allergic Conjunctivitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Allergic Conjunctivitis"
      ],
      "interventions": [
        {
          "name": "RX-10045",
          "type": "DRUG"
        },
        {
          "name": "Vehicle for RX-10045 arm",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "C.T. Development America, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2012-07",
      "completion_date": "2012-08",
      "has_results": false,
      "last_update_posted_date": "2013-02-08",
      "last_synced_at": "2026-09-02T22:42:04.533Z",
      "location_count": 1,
      "location_summary": "Andover, Massachusetts",
      "locations": [
        {
          "city": "Andover",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01639846"
    },
    {
      "nct_id": "NCT00836368",
      "title": "In Vitro Basophil Responsiveness to Allergen Challenge After Gamma-tocopherol Supplementation in Allergic Asthmatics",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Allergic",
        "Asthmatic",
        "Allergy",
        "Asthma"
      ],
      "interventions": [
        {
          "name": "gamma-tocopherol",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 25,
      "start_date": "2008-12",
      "completion_date": "2010-12",
      "has_results": false,
      "last_update_posted_date": "2011-11-07",
      "last_synced_at": "2026-09-02T22:42:04.533Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00836368"
    },
    {
      "nct_id": "NCT03541187",
      "title": "Cockroach Immunotherapy in Children and Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Persistent Asthma"
      ],
      "interventions": [
        {
          "name": "German cockroach allergenic extract",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo for German cockroach allergenic extract",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "8 Years to 17 Years"
      },
      "enrollment_count": 82,
      "start_date": "2018-07-16",
      "completion_date": "2022-06-03",
      "has_results": true,
      "last_update_posted_date": "2023-05-22",
      "last_synced_at": "2026-09-02T22:42:04.533Z",
      "location_count": 11,
      "location_summary": "Aurora, Colorado • Washington D.C., District of Columbia • Chicago, Illinois + 7 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03541187"
    },
    {
      "nct_id": "NCT01534195",
      "title": "Evaluation of the Efficacy of Topical Ophthalmic Steroids in a Modified Conjunctival Allergen Challenge (CAC) Model",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Allergic Conjunctivitis"
      ],
      "interventions": [
        {
          "name": "Prednisolone Sodium Phosphate Ophthalmic Solution 1%",
          "type": "DRUG"
        },
        {
          "name": "Tears Naturale II Ophthalmic Solution",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ORA, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2012-01",
      "completion_date": "2012-02",
      "has_results": true,
      "last_update_posted_date": "2019-03-26",
      "last_synced_at": "2026-09-02T22:42:04.533Z",
      "location_count": 1,
      "location_summary": "Andover, Massachusetts",
      "locations": [
        {
          "city": "Andover",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01534195"
    },
    {
      "nct_id": "NCT06262867",
      "title": "Early Allergen System Experience",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Food Allergy in Infants"
      ],
      "interventions": [
        {
          "name": "Ready. Set. Food! Stage 1 Mix ins",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Prollergy dba Ready Set Food",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Months",
        "maximum_age": "5 Months",
        "sex": "ALL",
        "summary": "2 Months to 5 Months"
      },
      "enrollment_count": 1110,
      "start_date": "2024-03-07",
      "completion_date": "2026-07-01",
      "has_results": false,
      "last_update_posted_date": "2025-06-05",
      "last_synced_at": "2026-09-02T22:42:04.533Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06262867"
    },
    {
      "nct_id": "NCT02402465",
      "title": "Factors Involved in Dymista's Superior Clinical Efficacy in the Treatment of Seasonal Allergic Rhinitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Allergic Rhinitis"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Fluticasone propionate",
          "type": "DRUG"
        },
        {
          "name": "Fluticasone/Azelastine nasal spray",
          "type": "DRUG"
        },
        {
          "name": "Nasal Allergen Challenge",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 22,
      "start_date": "2015-02",
      "completion_date": "2020-02",
      "has_results": true,
      "last_update_posted_date": "2024-10-17",
      "last_synced_at": "2026-09-02T22:42:04.533Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02402465"
    },
    {
      "nct_id": "NCT03112577",
      "title": "Study of REGN3500 and Dupilumab in Patients With Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Asthma, Allergic"
      ],
      "interventions": [
        {
          "name": "REGN3500",
          "type": "DRUG"
        },
        {
          "name": "Dupilumab",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Fluticasone propionate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Regeneron Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 32,
      "start_date": "2017-06-15",
      "completion_date": "2019-12-09",
      "has_results": false,
      "last_update_posted_date": "2020-01-18",
      "last_synced_at": "2026-09-02T22:42:04.533Z",
      "location_count": 1,
      "location_summary": "Cypress, California",
      "locations": [
        {
          "city": "Cypress",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03112577"
    },
    {
      "nct_id": "NCT03368339",
      "title": "Effectiveness of PR013 Topical Ophthalmic Drops Compared to Vehicle for the Treatment of Allergic Conjunctivitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Allergic Conjunctivitis"
      ],
      "interventions": [
        {
          "name": "PR013 (0.045%)",
          "type": "DRUG"
        },
        {
          "name": "PR013 (0.06%)",
          "type": "DRUG"
        },
        {
          "name": "Vehicle",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Realm Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "10 Years and older"
      },
      "enrollment_count": 96,
      "start_date": "2017-12-10",
      "completion_date": "2018-01-28",
      "has_results": false,
      "last_update_posted_date": "2020-01-29",
      "last_synced_at": "2026-09-02T22:42:04.533Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03368339"
    },
    {
      "nct_id": "NCT00769886",
      "title": "Ketotifen/Naphazoline Ophthalmic Solution in the Conjunctival Allergen Challenge Model of Allergic Conjunctivitis.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Allergic Conjunctivitis"
      ],
      "interventions": [
        {
          "name": "Ketotifen/naphazoline",
          "type": "DRUG"
        },
        {
          "name": "Ketotifen",
          "type": "DRUG"
        },
        {
          "name": "Naphazoline",
          "type": "DRUG"
        },
        {
          "name": "Vehicle",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bausch & Lomb Incorporated",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Years and older"
      },
      "enrollment_count": 144,
      "start_date": "2008-10",
      "completion_date": "2009-06",
      "has_results": true,
      "last_update_posted_date": "2024-04-03",
      "last_synced_at": "2026-09-02T22:42:04.533Z",
      "location_count": 1,
      "location_summary": "North Andover, Massachusetts",
      "locations": [
        {
          "city": "North Andover",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00769886"
    }
  ]
}