{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hayfever&page=2",
    "query": {
      "condition": "Hayfever",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hayfever&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-24T09:49:49.668Z",
  "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": "NCT00720278",
      "title": "A Study to Evaluate the Safety and Efficacy of Two Nasal Sprays to Treat Seasonal Allergies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Seasonal Allergic Rhinitis"
      ],
      "interventions": [
        {
          "name": "0.15% azelastine hydrochloride 1644 mcg daily",
          "type": "DRUG"
        },
        {
          "name": "0.1% azelastine hydrochloride 1096 mcg daily",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Meda Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 526,
      "start_date": "2007-08",
      "completion_date": "2007-11",
      "has_results": true,
      "last_update_posted_date": "2010-03-02",
      "last_synced_at": "2026-07-24T09:49:49.668Z",
      "location_count": 29,
      "location_summary": "Oxford, Alabama • Encinitas, California • Los Angeles, California + 25 more",
      "locations": [
        {
          "city": "Oxford",
          "state": "Alabama"
        },
        {
          "city": "Encinitas",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Mission Viejo",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00720278"
    },
    {
      "nct_id": "NCT05540717",
      "title": "Efficacy and Safety of PQ Grass in Subjects With Seasonal Allergic Rhinitis and/or Rhinoconjunctivitis Induced by Grass Pollen",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Seasonal Allergic Rhinitis",
        "Rhinoconjunctivitis"
      ],
      "interventions": [
        {
          "name": "PQ Grass",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Allergy Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 555,
      "start_date": "2022-10-11",
      "completion_date": "2023-11-01",
      "has_results": true,
      "last_update_posted_date": "2025-04-02",
      "last_synced_at": "2026-07-24T09:49:49.668Z",
      "location_count": 33,
      "location_summary": "Centennial, Colorado • Denver, Colorado • Lexington, Kentucky + 27 more",
      "locations": [
        {
          "city": "Centennial",
          "state": "Colorado"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05540717"
    },
    {
      "nct_id": "NCT00651118",
      "title": "A Study to Evaluate the Safety and Effectiveness of a Nasal Spray to Treat Seasonal Allergies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Seasonal Allergic Rhinitis"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "azelastine Hcl",
          "type": "DRUG"
        },
        {
          "name": "azelastineHcl / fluticasone propionate",
          "type": "DRUG"
        },
        {
          "name": "fluticasone propionate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Meda Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 832,
      "start_date": "2008-03",
      "completion_date": "2008-07",
      "has_results": true,
      "last_update_posted_date": "2012-09-26",
      "last_synced_at": "2026-07-24T09:49:49.668Z",
      "location_count": 43,
      "location_summary": "Scottsdale, Arizona • Encinitas, California • Los Angeles, California + 38 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Encinitas",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Mission Viejo",
          "state": "California"
        },
        {
          "city": "Rolling Hills Estates",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00651118"
    },
    {
      "nct_id": "NCT00660829",
      "title": "A Study to Evaluate the Safety and Effectiveness of a Nasal Spray to Treat Seasonal Allergies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Seasonal Allergic Rhinitis"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "0.15% Azelastine Hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Meda Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 536,
      "start_date": "2007-12",
      "completion_date": "2008-04",
      "has_results": true,
      "last_update_posted_date": "2015-04-13",
      "last_synced_at": "2026-07-24T09:49:49.668Z",
      "location_count": 6,
      "location_summary": "Austin, Texas • New Braunfels, Texas • San Antonio, Texas + 1 more",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        },
        {
          "city": "Austin",
          "state": "Texas"
        },
        {
          "city": "New Braunfels",
          "state": "Texas"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00660829"
    },
    {
      "nct_id": "NCT00932256",
      "title": "Clinical Trial of STAHIST in Seasonal Allergic Rhinitis Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Rhinitis, Allergic, Seasonal"
      ],
      "interventions": [
        {
          "name": "STAHIST NDC #58407-536-01",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Magna Pharmaceuticals, Inc.",
      "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": 21,
      "start_date": "2009-10",
      "completion_date": "2010-12",
      "has_results": false,
      "last_update_posted_date": "2010-12-08",
      "last_synced_at": "2026-07-24T09:49:49.668Z",
      "location_count": 1,
      "location_summary": "Louisville, Kentucky",
      "locations": [
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00932256"
    },
    {
      "nct_id": "NCT00421655",
      "title": "A Trial of Grazax in Subjects With Hayfever",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Allergy"
      ],
      "interventions": [
        {
          "name": "Grazax",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ALK-Abelló A/S",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 329,
      "start_date": "2006-12",
      "completion_date": "2007-10",
      "has_results": false,
      "last_update_posted_date": "2015-06-24",
      "last_synced_at": "2026-07-24T09:49:49.668Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00421655"
    },
    {
      "nct_id": "NCT02582073",
      "title": "Dose Selection Study of Efficacy and Safety of Different Doses of Grass MATA MPL and Grass MATA Using mEECs™",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Seasonal Allergic Rhinitis"
      ],
      "interventions": [
        {
          "name": "Placebo (0.5ml)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo (1.0ml)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Grass MATA MPL (0.5ml) 5100SU",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Grass MATA MPL (1.0ml) 10200SU",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Grass MATA MPL (1.0ml) 18200SU",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Grass MATA (0.5ml) 5100SU",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Allergy Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 265,
      "start_date": "2015-11-07",
      "completion_date": "2017-04-28",
      "has_results": false,
      "last_update_posted_date": "2021-01-29",
      "last_synced_at": "2026-07-24T09:49:49.668Z",
      "location_count": 1,
      "location_summary": "Neptune City, New Jersey",
      "locations": [
        {
          "city": "Neptune City",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02582073"
    },
    {
      "nct_id": "NCT02870205",
      "title": "Efficacy and Safety of GSP 301 Nasal Spray in the Treatment of Seasonal Allergic Rhinitis (SAR)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Seasonal Allergic Rhinitis (SAR)"
      ],
      "interventions": [
        {
          "name": "GSP 301 NS",
          "type": "DRUG"
        },
        {
          "name": "GOM-NS",
          "type": "DRUG"
        },
        {
          "name": "GMM-2 NS",
          "type": "DRUG"
        },
        {
          "name": "GSP 301 placebo NS",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Glenmark Specialty S.A.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 1176,
      "start_date": "2016-08",
      "completion_date": "2017-01",
      "has_results": true,
      "last_update_posted_date": "2018-04-06",
      "last_synced_at": "2026-07-24T09:49:49.668Z",
      "location_count": 43,
      "location_summary": "Mission Viejo, California • Orange, California • San Diego, California + 33 more",
      "locations": [
        {
          "city": "Mission Viejo",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Centennial",
          "state": "Colorado"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02870205"
    },
    {
      "nct_id": "NCT00719862",
      "title": "A Study to Evaluate the Safety & Effectiveness of a Nasal Spray to Treat Seasonal Allergies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Seasonal Allergic Rhinitis"
      ],
      "interventions": [
        {
          "name": "Placebo nasal spray",
          "type": "DRUG"
        },
        {
          "name": "0.15% azelastine hydrochloride Nasal Spray",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Meda Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "12 Years and older · Female only"
      },
      "enrollment_count": 481,
      "start_date": "2007-08",
      "completion_date": "2007-11",
      "has_results": true,
      "last_update_posted_date": "2010-02-02",
      "last_synced_at": "2026-07-24T09:49:49.668Z",
      "location_count": 34,
      "location_summary": "Huntington Beach, California • Long Beach, California • San Diego, California + 30 more",
      "locations": [
        {
          "city": "Huntington Beach",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Jose",
          "state": "California"
        },
        {
          "city": "Stockton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00719862"
    },
    {
      "nct_id": "NCT01010971",
      "title": "Clinical Trial to Assess the Efficacy and Safety of Ciclesonide Hydrofluoroalkane (HFA) Nasal Aerosol for the Treatment of Seasonal Allergic Rhinitis (SAR) to Mountain Cedar in Subjects 12 Years and Older",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Seasonal Allergic Rhinitis"
      ],
      "interventions": [
        {
          "name": "Ciclesonide HFA 160 μg",
          "type": "DRUG"
        },
        {
          "name": "Ciclesonide HFA 80 μg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sumitomo Pharma America, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 671,
      "start_date": "2009-12",
      "completion_date": "2010-02",
      "has_results": true,
      "last_update_posted_date": "2012-06-13",
      "last_synced_at": "2026-07-24T09:49:49.668Z",
      "location_count": 7,
      "location_summary": "Austin, Texas • New Braunfels, Texas • San Antonio, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        },
        {
          "city": "Austin",
          "state": "Texas"
        },
        {
          "city": "New Braunfels",
          "state": "Texas"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01010971"
    }
  ]
}