{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Diphenhydramine+25+mg",
    "query": {
      "intervention": "Diphenhydramine 25 mg"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 130,
    "total_pages": 13,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Diphenhydramine+25+mg&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-04T08:15:42.067Z",
  "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": "NCT02735343",
      "title": "The CHECK Trial: A Comparison of Headache Treatment in the Emergency Department: Compazine Versus Ketamine",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Headache"
      ],
      "interventions": [
        {
          "name": "Compazine",
          "type": "DRUG"
        },
        {
          "name": "Ketamine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mike O'Callaghan Military Hospital",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 5,
      "start_date": "2016-08",
      "completion_date": "2017-05",
      "has_results": true,
      "last_update_posted_date": "2024-03-04",
      "last_synced_at": "2026-10-04T08:15:42.067Z",
      "location_count": 1,
      "location_summary": "Nellis Air Force Base, Nevada",
      "locations": [
        {
          "city": "Nellis Air Force Base",
          "state": "Nevada"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02735343"
    },
    {
      "nct_id": "NCT01989078",
      "title": "Losartan for Sickle Cell Kidney Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Sickle Cell Disease"
      ],
      "interventions": [
        {
          "name": "Losartan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "9 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2012-12",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2017-07-17",
      "last_synced_at": "2026-10-04T08:15:42.067Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01989078"
    },
    {
      "nct_id": "NCT00562809",
      "title": "The Efficacy and Safety of Irbesartan 150/12.5 mg and 300/25 mg in Patients With Mild Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "IRBESARTAN",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1005,
      "start_date": "2003-07",
      "completion_date": "2004-08",
      "has_results": false,
      "last_update_posted_date": "2007-11-27",
      "last_synced_at": "2026-10-04T08:15:42.067Z",
      "location_count": 1,
      "location_summary": "Bridgewater, New Jersey",
      "locations": [
        {
          "city": "Bridgewater",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00562809"
    },
    {
      "nct_id": "NCT02061293",
      "title": "A Double-Blind Trial of Psilocybin-Assisted Treatment of Alcohol Dependence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Alcohol Dependence"
      ],
      "interventions": [
        {
          "name": "Psilocybin",
          "type": "DRUG"
        },
        {
          "name": "Diphenhydramine",
          "type": "DRUG"
        },
        {
          "name": "Motivational Enhancement and Taking Action (META)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "25 Years to 65 Years"
      },
      "enrollment_count": 95,
      "start_date": "2014-06",
      "completion_date": "2021-07-30",
      "has_results": true,
      "last_update_posted_date": "2022-11-08",
      "last_synced_at": "2026-10-04T08:15:42.067Z",
      "location_count": 2,
      "location_summary": "Albuquerque, New Mexico • New York, New York",
      "locations": [
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02061293"
    },
    {
      "nct_id": "NCT00143065",
      "title": "Fludarabine, Rituximab, and Alemtuzumab for B-Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphoma, Small Lymphocytic",
        "Lymphocytic Leukemia, Chronic"
      ],
      "interventions": [
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Rituximab",
          "type": "DRUG"
        },
        {
          "name": "Alemtuzumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 8,
      "start_date": "2005-08",
      "completion_date": "2009-07",
      "has_results": false,
      "last_update_posted_date": "2017-02-08",
      "last_synced_at": "2026-10-04T08:15:42.067Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00143065"
    },
    {
      "nct_id": "NCT00168779",
      "title": "Randomized, Double-Blind, Placebo-Controlled, Forced-Titration, Comparing Telmisartan vs Valsartan. Taken Orally for Eight Weeks in Patients With Stage 1 and Stage 2 Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "telmisartan 80 mg / hydrochlorothiazide 25 mg",
          "type": "DRUG"
        },
        {
          "name": "valsartan 160 mg / hydrochlorothiazide 25 mg",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boehringer Ingelheim",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1185,
      "start_date": "2005-09",
      "completion_date": "2006-07",
      "has_results": false,
      "last_update_posted_date": "2017-12-28",
      "last_synced_at": "2026-10-04T08:15:42.067Z",
      "location_count": 113,
      "location_summary": "Athens, Alabama • Birmingham, Alabama • Huntsville, Alabama + 90 more",
      "locations": [
        {
          "city": "Athens",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00168779"
    },
    {
      "nct_id": "NCT02142712",
      "title": "Histamine Glutamate Antagonism in Stroke",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Cerebrovascular Accident",
        "Cerebral Edema"
      ],
      "interventions": [
        {
          "name": "Diphenhydramine",
          "type": "DRUG"
        },
        {
          "name": "Pantoprazole",
          "type": "DRUG"
        },
        {
          "name": "Famotidine",
          "type": "DRUG"
        },
        {
          "name": "Dextromethorphan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 3,
      "start_date": "2014-12",
      "completion_date": "2014-12",
      "has_results": true,
      "last_update_posted_date": "2015-12-15",
      "last_synced_at": "2026-10-04T08:15:42.067Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02142712"
    },
    {
      "nct_id": "NCT00346151",
      "title": "Belatacept to Prevent Organ Rejection in Kidney Transplant Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Renal Transplant"
      ],
      "interventions": [
        {
          "name": "Belatacept",
          "type": "DRUG"
        },
        {
          "name": "Sirolimus",
          "type": "DRUG"
        },
        {
          "name": "Anti-thymocyte globulin",
          "type": "DRUG"
        },
        {
          "name": "methylprednisolone",
          "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": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 5,
      "start_date": "2006-12",
      "completion_date": "2010-02",
      "has_results": true,
      "last_update_posted_date": "2017-04-21",
      "last_synced_at": "2026-10-04T08:15:42.067Z",
      "location_count": 2,
      "location_summary": "San Francisco, California • Atlanta, Georgia",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00346151"
    },
    {
      "nct_id": "NCT04268498",
      "title": "A Study of Daratumumab, Carfilzomib, Lenalidomide, and Dexamethasone in Patients With Newly-Diagnosed Multiple Myeloma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Multiple Myeloma"
      ],
      "interventions": [
        {
          "name": "Bortezomib",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Lenalidomide",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Diphenhydramine",
          "type": "DRUG"
        },
        {
          "name": "Montelukast",
          "type": "DRUG"
        },
        {
          "name": "Carfilzomib",
          "type": "DRUG"
        },
        {
          "name": "Daratumumab",
          "type": "DRUG"
        },
        {
          "name": "Autologous Stem Cell Transplant (ASCT)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 310,
      "start_date": "2020-02-11",
      "completion_date": "2027-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-24",
      "last_synced_at": "2026-10-04T08:15:42.067Z",
      "location_count": 7,
      "location_summary": "Miami, Florida • Tampa, Florida • Buffalo, New York + 4 more",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Buffalo",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Stony Brook",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04268498"
    },
    {
      "nct_id": "NCT06070649",
      "title": "The Potential Therapeutic Effects of Psychedelic, N, N-dimethyltryptamine (DMT), on Alcohol Use Disorder (AUD)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Alcohol Use Disorder (AUD)",
        "Alcohol-Related Disorders",
        "Alcohol Use"
      ],
      "interventions": [
        {
          "name": "0.3mg/kg/min Dimethyltryptamine + Normal Saline infusion",
          "type": "DRUG"
        },
        {
          "name": "0.2 mg/kg/min + Dimethyltryptamine 0.01mg/kg/min infusion",
          "type": "DRUG"
        },
        {
          "name": "25 mg Diphenhydramine (5 min) + Normal Saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 63,
      "start_date": "2025-08-04",
      "completion_date": "2027-08-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-10",
      "last_synced_at": "2026-10-04T08:15:42.067Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06070649"
    }
  ]
}