{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=137+mcg+of+azelastine+hydrochloride",
    "query": {
      "intervention": "137 mcg of azelastine hydrochloride"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 4,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-01T16:03:27.936Z",
  "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": "NCT00772304",
      "title": "Evaluation of the Sensory Attributes of Olopatadine 0.6% and Azelastine 137mcg Nasal Sprays in Patients w/Allergic Rhinitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Allergic Rhinitis"
      ],
      "interventions": [
        {
          "name": "Olopatadine 0.6% / Azelastine 137 mcg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 102,
      "start_date": "2008-10",
      "completion_date": null,
      "has_results": true,
      "last_update_posted_date": "2010-03-02",
      "last_synced_at": "2026-10-01T16:03:27.936Z",
      "location_count": 1,
      "location_summary": "Fort Worth, Texas",
      "locations": [
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00772304"
    },
    {
      "nct_id": "NCT01880840",
      "title": "Safety of Astepro 0.15% Nasal Spray and Astepro 0.1% Nasal Spray in Children Ages >6 Months to <6 Years With AR",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Allergic Rhinitis"
      ],
      "interventions": [
        {
          "name": "205.5 mcg of azelastine hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "137 mcg of azelastine hydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Meda Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "5 Years",
        "sex": "ALL",
        "summary": "6 Months to 5 Years"
      },
      "enrollment_count": 191,
      "start_date": "2013-06",
      "completion_date": "2014-08",
      "has_results": true,
      "last_update_posted_date": "2015-06-29",
      "last_synced_at": "2026-10-01T16:03:27.936Z",
      "location_count": 14,
      "location_summary": "Birmingham, Alabama • Little Rock, Alaska • Costa Mesa, California + 9 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Alaska"
        },
        {
          "city": "Costa Mesa",
          "state": "California"
        },
        {
          "city": "Mission Viejo",
          "state": "California"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01880840"
    },
    {
      "nct_id": "NCT00979615",
      "title": "Safety and Efficacy of Olopatadine 0.6% and Azelastine 137 Mcg in Vasomotor Rhinitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Vasomotor Rhinitis"
      ],
      "interventions": [
        {
          "name": "Olopatadine HCL (Patanase) Nasal Spray, 0.6%",
          "type": "DRUG"
        },
        {
          "name": "Azelastine HCl (Astelin) Nasal Spray, 137 mcg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 129,
      "start_date": "2009-09",
      "completion_date": null,
      "has_results": true,
      "last_update_posted_date": "2011-05-10",
      "last_synced_at": "2026-10-01T16:03:27.936Z",
      "location_count": 1,
      "location_summary": "Fort Worth, Texas",
      "locations": [
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00979615"
    },
    {
      "nct_id": "NCT02249663",
      "title": "Clinical Equivalence of Azelastine Hydrochloride and Fluticasone Propionate, 137/50 mcg Nasal Spray to Dymista™",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Seasonal Allergic Rhinitis"
      ],
      "interventions": [
        {
          "name": "Azelastine hydrochloride and Fluticasone propionate",
          "type": "DRUG"
        },
        {
          "name": "Dymista™",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Teva Pharmaceuticals USA",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 1535,
      "start_date": "2014-08",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2014-09-25",
      "last_synced_at": "2026-10-01T16:03:27.936Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02249663"
    }
  ]
}