{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=diphenhydramine+HCl",
    "query": {
      "intervention": "diphenhydramine HCl"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 258,
    "total_pages": 26,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=diphenhydramine+HCl&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-23T11:14:27.830Z",
  "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": "NCT00166712",
      "title": "A Trial of Two Steroid-Free Approaches Toward Mycophenolate Mofetil-Based Monotherapy Immunosuppression",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Kidney Transplant Failure and Rejection"
      ],
      "interventions": [
        {
          "name": "Tacrolimus (TAC)",
          "type": "DRUG"
        },
        {
          "name": "Sirolimus",
          "type": "DRUG"
        },
        {
          "name": "Alemtuzumab",
          "type": "DRUG"
        },
        {
          "name": "Mycophenolate mofetil (MMF)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 40,
      "start_date": "2005-04",
      "completion_date": "2010-04",
      "has_results": true,
      "last_update_posted_date": "2015-10-26",
      "last_synced_at": "2026-09-23T11:14:27.830Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00166712"
    },
    {
      "nct_id": "NCT02356159",
      "title": "Study of Palifermin (Kepivance) in Persons Undergoing Unrelated Donor Allogeneic Hematopoietic Cell Transplantation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Myelodysplastic Syndromes",
        "Hodgkin's Lymphoma",
        "Non-Hodgkin's Lymphoma",
        "Acute Leukemia",
        "Multiple Myeloma"
      ],
      "interventions": [
        {
          "name": "Rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Conditioning chemotherapy",
          "type": "DRUG"
        },
        {
          "name": "TMS",
          "type": "DRUG"
        },
        {
          "name": "FLAG",
          "type": "DRUG"
        },
        {
          "name": "EPOCH-F",
          "type": "DRUG"
        },
        {
          "name": "Hematopoietic stem cell transplant",
          "type": "PROCEDURE"
        },
        {
          "name": "Palifermin",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Diphenhydramine",
          "type": "DRUG"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Epinephrine",
          "type": "DRUG"
        },
        {
          "name": "IV Saline",
          "type": "OTHER"
        },
        {
          "name": "ECG",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "ECHO",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "MUGA",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "DEXA",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "CT chest",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "PET",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "MRI",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "BM aspirate",
          "type": "PROCEDURE"
        },
        {
          "name": "BM biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Lumbar puncture",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE",
        "OTHER",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 34,
      "start_date": "2015-09-24",
      "completion_date": "2025-03-25",
      "has_results": true,
      "last_update_posted_date": "2025-09-30",
      "last_synced_at": "2026-09-23T11:14:27.830Z",
      "location_count": 2,
      "location_summary": "Bethesda, Maryland • Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02356159"
    },
    {
      "nct_id": "NCT01248962",
      "title": "Standard Infusion Carboplatin Versus Prophylactic Extended Infusion Carboplatin in Patients With Patients With Recurrent, Ovary, Fallopian Tube, and Primary Peritoneal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ovarian Cancer",
        "Fallopian Tube Cancer",
        "Peritoneal Cancer"
      ],
      "interventions": [
        {
          "name": "carboplatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "21 Years and older · Female only"
      },
      "enrollment_count": 146,
      "start_date": "2010-11",
      "completion_date": "2018-08",
      "has_results": true,
      "last_update_posted_date": "2019-10-02",
      "last_synced_at": "2026-09-23T11:14:27.830Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01248962"
    },
    {
      "nct_id": "NCT06023641",
      "title": "Treatment of Newly Diagnosed Rhabdomyosarcoma Using Molecular Risk Stratification and Liposomal Irinotecan Based Therapy in Children With Intermediate and High Risk Disease",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Rhabdomyosarcoma"
      ],
      "interventions": [
        {
          "name": "Vincristine",
          "type": "DRUG"
        },
        {
          "name": "Dactinomycin",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Surgical Resection",
          "type": "PROCEDURE"
        },
        {
          "name": "Proton beam radiation or external beam radiation or brachytherapy",
          "type": "PROCEDURE"
        },
        {
          "name": "Liposomal irinotecan",
          "type": "DRUG"
        },
        {
          "name": "Vinorelbine",
          "type": "DRUG"
        },
        {
          "name": "Temozolomide",
          "type": "DRUG"
        },
        {
          "name": "Filgrastim, peg-filgrastim",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "22 Years",
        "sex": "ALL",
        "summary": "Up to 22 Years"
      },
      "enrollment_count": 135,
      "start_date": "2024-03-13",
      "completion_date": "2037-10",
      "has_results": false,
      "last_update_posted_date": "2026-06-15",
      "last_synced_at": "2026-09-23T11:14:27.830Z",
      "location_count": 3,
      "location_summary": "Palo Alto, California • Memphis, Tennessee • Fort Worth, Texas",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        },
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06023641"
    },
    {
      "nct_id": "NCT02552394",
      "title": "J591 in Patients With Advanced Prostate Cancer and Unfavorable Circulating Tumor Cell Counts",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "huJ591",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 10,
      "start_date": "2015-07",
      "completion_date": "2021-01-03",
      "has_results": false,
      "last_update_posted_date": "2023-04-06",
      "last_synced_at": "2026-09-23T11:14:27.830Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02552394"
    },
    {
      "nct_id": "NCT00226941",
      "title": "A Phase 1-2 Trial of Cetuximab in Combination With Oxaliplatin, Capecitabine, and Radiation Therapy Followed by Surgery for Locally-advanced Rectal Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Rectal Cancer",
        "Colo-rectal Cancer"
      ],
      "interventions": [
        {
          "name": "Cetuximab",
          "type": "DRUG"
        },
        {
          "name": "Oxaliplatin",
          "type": "DRUG"
        },
        {
          "name": "Capecitabine",
          "type": "DRUG"
        },
        {
          "name": "Radiotherapy",
          "type": "RADIATION"
        },
        {
          "name": "Diphenhydramine hydrochloride (HCl)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "George Albert Fisher",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 23,
      "start_date": "2004-06",
      "completion_date": "2009-02",
      "has_results": true,
      "last_update_posted_date": "2017-12-08",
      "last_synced_at": "2026-09-23T11:14:27.830Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00226941"
    },
    {
      "nct_id": "NCT04668833",
      "title": "ALI Post Radiation Therapy in Patients With Lung and Esophageal Canter",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Solid Tumor Malignancies"
      ],
      "interventions": [
        {
          "name": "Autologous lymphocyte infusion (ALI)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 19,
      "start_date": "2020-09-29",
      "completion_date": "2025-10-24",
      "has_results": true,
      "last_update_posted_date": "2026-05-07",
      "last_synced_at": "2026-09-23T11:14:27.830Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04668833"
    },
    {
      "nct_id": "NCT01604785",
      "title": "Low-dose Propofol for Pediatric Migraine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Migraine Headache"
      ],
      "interventions": [
        {
          "name": "Propofol",
          "type": "DRUG"
        },
        {
          "name": "Standard Treatment",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "7 Years to 18 Years"
      },
      "enrollment_count": 74,
      "start_date": "2012-11",
      "completion_date": "2016-08",
      "has_results": true,
      "last_update_posted_date": "2018-12-31",
      "last_synced_at": "2026-09-23T11:14:27.830Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01604785"
    },
    {
      "nct_id": "NCT00078559",
      "title": "Combination Immunosuppressive Therapy to Prevent Kidney Transplant Rejection in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Kidney Transplantation",
        "Kidney Disease"
      ],
      "interventions": [
        {
          "name": "Alemtuzumab",
          "type": "DRUG"
        },
        {
          "name": "Sirolimus",
          "type": "DRUG"
        },
        {
          "name": "Tacrolimus",
          "type": "DRUG"
        },
        {
          "name": "Kidney transplant",
          "type": "PROCEDURE"
        },
        {
          "name": "Methylprednisolone (or equivalent)",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Diphenhydramine",
          "type": "DRUG"
        },
        {
          "name": "Trimethoprim (TMP)/Sulfa (Bactrim, Septra)",
          "type": "DRUG"
        },
        {
          "name": "Valgancyclovir",
          "type": "DRUG"
        },
        {
          "name": "Acyclovir",
          "type": "DRUG"
        },
        {
          "name": "Pentamidine",
          "type": "DRUG"
        },
        {
          "name": "Clotrimazole",
          "type": "DRUG"
        },
        {
          "name": "Nystatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 10,
      "start_date": "2003-11",
      "completion_date": "2010-02",
      "has_results": true,
      "last_update_posted_date": "2018-06-29",
      "last_synced_at": "2026-09-23T11:14:27.830Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00078559"
    },
    {
      "nct_id": "NCT03396250",
      "title": "A Pharmacokinetic Trial of Naproxen Sodium and Diphenhydramine Hydrochloride Soft Capsules Versus Naproxen Sodium and Diphenhydramine Hydrochloride Tablets in Healthy Adult Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Naproxen sodium and diphenhydramine hydrochloride soft capsules",
          "type": "DRUG"
        },
        {
          "name": "Naproxen sodium and diphenhydramine hydrochloride coated tablets (Aleve, PMBAY98-7111)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 36,
      "start_date": "2018-02-12",
      "completion_date": "2018-03-29",
      "has_results": false,
      "last_update_posted_date": "2019-03-20",
      "last_synced_at": "2026-09-23T11:14:27.830Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03396250"
    }
  ]
}