{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=histamine+dihydrochloride&page=2",
    "query": {
      "intervention": "histamine dihydrochloride",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 101,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=histamine+dihydrochloride&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=histamine+dihydrochloride&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T02:53:54.672Z",
  "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": "NCT06824467",
      "title": "A Study to Evaluate the Efficacy and Safety of Sacituzumab Tirumotecan (MK-2870) Maintenance Treatment Versus Standard of Care in Participants With Platinum-sensitive Recurrent Ovarian Cancer (MK-2870-022/TroFuse-022/ENGOT-ov84/GOG-3103)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Ovarian Cancer",
        "Fallopian Tube Cancer",
        "Primary Peritoneal Cancer"
      ],
      "interventions": [
        {
          "name": "Sacituzumab tirumotecan",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "H1 receptor antagonist",
          "type": "DRUG"
        },
        {
          "name": "H2 receptor antagonist",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen (or equivalent)",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone (or equivalent)",
          "type": "DRUG"
        },
        {
          "name": "Steroid mouthwash (dexamethasone or equivalent)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 770,
      "start_date": "2025-04-09",
      "completion_date": "2032-11-09",
      "has_results": false,
      "last_update_posted_date": "2026-09-03",
      "last_synced_at": "2026-10-06T02:53:54.672Z",
      "location_count": 36,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • San Francisco, California + 32 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Walnut Creek",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06824467"
    },
    {
      "nct_id": "NCT04990388",
      "title": "Safety, Tolerability, and Pharmacokinetics of UX053 in Patients With Glycogen Storage Disease Type III (GSD III)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Glycogen Storage Disease Type III"
      ],
      "interventions": [
        {
          "name": "UX053",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Antipyretic",
          "type": "DRUG"
        },
        {
          "name": "H2 Blocker",
          "type": "DRUG"
        },
        {
          "name": "H1 Blocker",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Ultragenyx Pharmaceutical Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 9,
      "start_date": "2021-10-18",
      "completion_date": "2023-03-20",
      "has_results": true,
      "last_update_posted_date": "2024-04-16",
      "last_synced_at": "2026-10-06T02:53:54.672Z",
      "location_count": 4,
      "location_summary": "Orange, California • Atlanta, Georgia • Philadelphia, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04990388"
    },
    {
      "nct_id": "NCT04918147",
      "title": "Elotuzumab in Immunoglobulin G4-Related Disease (IgG4-RD)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "IgG4 Related Disease",
        "IgG4-RD"
      ],
      "interventions": [
        {
          "name": "elotuzumab",
          "type": "DRUG"
        },
        {
          "name": "placebo for elotuzumab",
          "type": "DRUG"
        },
        {
          "name": "methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "diphenhydramine",
          "type": "DRUG"
        },
        {
          "name": "acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "famotidine",
          "type": "DRUG"
        },
        {
          "name": "prednisone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 8,
      "start_date": "2021-10-13",
      "completion_date": "2024-01-04",
      "has_results": true,
      "last_update_posted_date": "2026-02-05",
      "last_synced_at": "2026-10-06T02:53:54.672Z",
      "location_count": 3,
      "location_summary": "Atlanta, Georgia • Boston, Massachusetts • Rochester, Minnesota",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04918147"
    },
    {
      "nct_id": "NCT00387738",
      "title": "Efficacy and Safety Study of TOLAMBA™ in Ragweed-Allergic Adults",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Rhinitis, Allergic, Seasonal"
      ],
      "interventions": [
        {
          "name": "Amb a 1 immunostimulatory oligodeoxyribonucleotide conjugate",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Histamine base",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Dynavax Technologies Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 738,
      "start_date": "2006-04",
      "completion_date": "2008-03",
      "has_results": false,
      "last_update_posted_date": "2019-04-16",
      "last_synced_at": "2026-10-06T02:53:54.672Z",
      "location_count": 28,
      "location_summary": "Oxford, Alabama • Stockbridge, Georgia • Normal, Illinois + 22 more",
      "locations": [
        {
          "city": "Oxford",
          "state": "Alabama"
        },
        {
          "city": "Stockbridge",
          "state": "Georgia"
        },
        {
          "city": "Stockbridge",
          "state": "Georgia"
        },
        {
          "city": "Normal",
          "state": "Illinois"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00387738"
    },
    {
      "nct_id": "NCT04699604",
      "title": "A Histamine Pharmacodynamic Biomarker to Guide Treatment in Pediatric Asthma (HAS3)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Allergic Asthma"
      ],
      "interventions": [
        {
          "name": "Levocetirizine Dihydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bridgette Jones",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "6 Years to 17 Years"
      },
      "enrollment_count": 55,
      "start_date": "2021-04-28",
      "completion_date": "2026-04-26",
      "has_results": false,
      "last_update_posted_date": "2026-07-01",
      "last_synced_at": "2026-10-06T02:53:54.672Z",
      "location_count": 1,
      "location_summary": "Kansas City, Missouri",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04699604"
    },
    {
      "nct_id": "NCT05946551",
      "title": "Treatment of Long CoronaVirus Disease (COVID) (TLC) Feasibility Trial",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Cetirizine",
          "type": "DRUG"
        },
        {
          "name": "Famotidine",
          "type": "DRUG"
        },
        {
          "name": "Cetirizine Placebo",
          "type": "DRUG"
        },
        {
          "name": "Famotidine Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 5,
      "start_date": "2024-03-08",
      "completion_date": "2024-06-24",
      "has_results": true,
      "last_update_posted_date": "2025-07-17",
      "last_synced_at": "2026-10-06T02:53:54.672Z",
      "location_count": 4,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05946551"
    },
    {
      "nct_id": "NCT02342041",
      "title": "A Study to Investigate the Safety, Tolerability and Pharmacokinetics of SUVN-G3031 in Healthy Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cognitive Disorders"
      ],
      "interventions": [
        {
          "name": "SUVN-G3031",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Suven Life Sciences Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "MALE",
        "summary": "18 Years to 45 Years · Male only"
      },
      "enrollment_count": 64,
      "start_date": "2014-09",
      "completion_date": "2015-08",
      "has_results": false,
      "last_update_posted_date": "2016-10-14",
      "last_synced_at": "2026-10-06T02:53:54.672Z",
      "location_count": 1,
      "location_summary": "Overland Park, Kansas",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02342041"
    },
    {
      "nct_id": "NCT01981499",
      "title": "A Study of the Safety, Tolerability, Pharmacokinetics, And Effects On Histamine-Induced Wheal Of PF-05180999 In Healthy Adults",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Migraine"
      ],
      "interventions": [
        {
          "name": "PF-05180999",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "120 mg MR PF-05180999",
          "type": "DRUG"
        },
        {
          "name": "360 mg MR PF-05180999",
          "type": "DRUG"
        },
        {
          "name": "10 mg cetirizine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "MALE",
        "summary": "18 Years to 55 Years · Male only"
      },
      "enrollment_count": 31,
      "start_date": "2014-01",
      "completion_date": "2014-04",
      "has_results": false,
      "last_update_posted_date": "2014-05-08",
      "last_synced_at": "2026-10-06T02:53:54.672Z",
      "location_count": 1,
      "location_summary": "Saint Paul, Minnesota",
      "locations": [
        {
          "city": "Saint Paul",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01981499"
    },
    {
      "nct_id": "NCT06305754",
      "title": "Sacituzumab Tirumotecan (MK-2870) Versus Pemetrexed and Carboplatin Combination Therapy in Participants With Epidermal Growth Factor (EGFR)-Mutated, Advanced Nonsquamous Non-small Cell Lung Cancer (NSCLC) Who Have Progressed on Prior EGFR Tyrosine Kinase Inhibitors (MK-2870-009)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Non-small Cell Lung Cancer (NSCLC)"
      ],
      "interventions": [
        {
          "name": "Sacituzumab tirumotecan",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pemetrexed",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "H1 Receptor Antagonist",
          "type": "DRUG"
        },
        {
          "name": "H2 Receptor Antagonist",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen (or equivalent)",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone (or equivalent)",
          "type": "DRUG"
        },
        {
          "name": "Steroid Mouthwash (dexamethasone or equivalent)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 550,
      "start_date": "2024-06-11",
      "completion_date": "2030-06-14",
      "has_results": false,
      "last_update_posted_date": "2026-09-11",
      "last_synced_at": "2026-10-06T02:53:54.672Z",
      "location_count": 17,
      "location_summary": "Oakland, California • Roseville, California • San Francisco, California + 13 more",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Roseville",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Santa Clara",
          "state": "California"
        },
        {
          "city": "Vallejo",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06305754"
    },
    {
      "nct_id": "NCT03522675",
      "title": "NeoMatriX Wound Matrix Collagen Dressing Skin Prick Test",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Allergy Skin",
        "Allergy",
        "Dermatitis, Allergic Contact"
      ],
      "interventions": [
        {
          "name": "NeoMatriX Wound MatriX Collagen Dressing",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "NeXtGen Biologics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 22,
      "start_date": "2018-04-11",
      "completion_date": "2018-04-28",
      "has_results": true,
      "last_update_posted_date": "2019-05-31",
      "last_synced_at": "2026-10-06T02:53:54.672Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03522675"
    }
  ]
}