{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=dextromethorphan",
    "query": {
      "intervention": "dextromethorphan"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 129,
    "total_pages": 13,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=dextromethorphan&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T21:48:01.371Z",
  "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": "NCT01766050",
      "title": "Study to Evaluate Effect of Belatacept on Pharmacokinetics of Inje Cocktail in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Transplant Rejection"
      ],
      "interventions": [
        {
          "name": "Caffeine",
          "type": "DRUG"
        },
        {
          "name": "Losartan",
          "type": "DRUG"
        },
        {
          "name": "Omeprazole",
          "type": "DRUG"
        },
        {
          "name": "Dextromethorphan",
          "type": "DRUG"
        },
        {
          "name": "Midazolam",
          "type": "DRUG"
        },
        {
          "name": "Belatacept",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 45,
      "start_date": "2013-01",
      "completion_date": "2013-04",
      "has_results": true,
      "last_update_posted_date": "2014-06-27",
      "last_synced_at": "2026-09-02T21:48:01.371Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01766050"
    },
    {
      "nct_id": "NCT00009542",
      "title": "Effects of Kava on the Body's Elimination of Caffeine and Dextromethorphan",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "kava (Piper methysticum)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institutes of Health Clinical Center (CC)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 20,
      "start_date": "2001-01",
      "completion_date": "2001-04",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-09-02T21:48:01.371Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00009542"
    },
    {
      "nct_id": "NCT00333242",
      "title": "Hyperalgesia in Methadone Patients: Can it be Treated?",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Opioid-induced Hyperalgesia"
      ],
      "interventions": [
        {
          "name": "dextromethorphan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute on Drug Abuse (NIDA)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 40,
      "start_date": "2002-09",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2017-01-11",
      "last_synced_at": "2026-09-02T21:48:01.371Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00333242"
    },
    {
      "nct_id": "NCT01520363",
      "title": "Placebo Controlled Trial of Dextromethorphan in Rett Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Rett Syndrome"
      ],
      "interventions": [
        {
          "name": "dextromethorphan",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hugo W. Moser Research Institute at Kennedy Krieger, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "10 Years",
        "sex": "ALL",
        "summary": "1 Year to 10 Years"
      },
      "enrollment_count": 57,
      "start_date": "2012-03",
      "completion_date": "2016-10-26",
      "has_results": true,
      "last_update_posted_date": "2018-12-04",
      "last_synced_at": "2026-09-02T21:48:01.371Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01520363"
    },
    {
      "nct_id": "NCT01367535",
      "title": "Effects of MNTX on CYP450 2D6 in Metabolizers of Dextromethorphan",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Adults"
      ],
      "interventions": [
        {
          "name": "SC Methylnaltrexone (MNTX)",
          "type": "DRUG"
        },
        {
          "name": "IV Methylnaltrexone (MNTX)",
          "type": "DRUG"
        },
        {
          "name": "Oral Paroxetine",
          "type": "DRUG"
        },
        {
          "name": "SC Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bausch Health Americas, Inc.",
      "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": 54,
      "start_date": "2006-03",
      "completion_date": "2006-08",
      "has_results": false,
      "last_update_posted_date": "2019-11-27",
      "last_synced_at": "2026-09-02T21:48:01.371Z",
      "location_count": 1,
      "location_summary": "Tarrytown, New York",
      "locations": [
        {
          "city": "Tarrytown",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01367535"
    },
    {
      "nct_id": "NCT02688088",
      "title": "A Study of Abemaciclib in Participants With Cancer That is Advanced or Has Spread to Another Part(s) of the Body",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Neoplasm Metastasis"
      ],
      "interventions": [
        {
          "name": "Drug Cocktail",
          "type": "DRUG"
        },
        {
          "name": "Abemaciclib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 48,
      "start_date": "2016-03-08",
      "completion_date": "2021-01-06",
      "has_results": true,
      "last_update_posted_date": "2022-10-18",
      "last_synced_at": "2026-09-02T21:48:01.371Z",
      "location_count": 5,
      "location_summary": "Denver, Colorado • Indianapolis, Indiana • Fairway, Kansas + 2 more",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Fairway",
          "state": "Kansas"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02688088"
    },
    {
      "nct_id": "NCT00377403",
      "title": "Treatment of Acute Sinusitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Acute Respiratory Infections",
        "Acute Rhinosinusitis"
      ],
      "interventions": [
        {
          "name": "Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Amoxicillin",
          "type": "DRUG"
        },
        {
          "name": "Dextromethorphan hydrobromide with guaifenesin",
          "type": "DRUG"
        },
        {
          "name": "Guaifenesin",
          "type": "DRUG"
        },
        {
          "name": "Pseudoephedrine Sustained Action",
          "type": "DRUG"
        },
        {
          "name": "Saline spray (0.65%)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 172,
      "start_date": "2006-10",
      "completion_date": "2010-08",
      "has_results": true,
      "last_update_posted_date": "2012-12-28",
      "last_synced_at": "2026-09-02T21:48:01.371Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00377403"
    },
    {
      "nct_id": "NCT03076021",
      "title": "Effects of Isotretinoin on CYP2D6 Activity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "CYP2D6 Polymorphism"
      ],
      "interventions": [
        {
          "name": "Isotretinoin",
          "type": "DRUG"
        },
        {
          "name": "dextromethorphan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 33,
      "start_date": "2016-07-26",
      "completion_date": "2023-11-27",
      "has_results": true,
      "last_update_posted_date": "2025-01-28",
      "last_synced_at": "2026-09-02T21:48:01.371Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03076021"
    },
    {
      "nct_id": "NCT00359281",
      "title": "Pharmacokinetic Drug Interactions of AEGR-733 on Lipid-lowering Agents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "atorvastatin",
          "type": "DRUG"
        },
        {
          "name": "simvastatin",
          "type": "DRUG"
        },
        {
          "name": "ezetimibe",
          "type": "DRUG"
        },
        {
          "name": "fenofibrate",
          "type": "DRUG"
        },
        {
          "name": "dextromethorphan",
          "type": "DRUG"
        },
        {
          "name": "Extended Release Niacin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Aegerion Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 125,
      "start_date": "2006-03",
      "completion_date": "2007-11",
      "has_results": true,
      "last_update_posted_date": "2018-02-23",
      "last_synced_at": "2026-09-02T21:48:01.371Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00359281"
    },
    {
      "nct_id": "NCT03358706",
      "title": "A Study to Evaluate the Effect of Ustekinumab on Cytochrome P450 Enzyme Activities Following Induction and Maintenance Dosing in Participants With Active Crohn's Disease or Ulcerative Colitis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Crohn Disease",
        "Ulcerative Colitis"
      ],
      "interventions": [
        {
          "name": "Ustekinumab IV Infusion",
          "type": "DRUG"
        },
        {
          "name": "Ustekinumab SC Injection",
          "type": "DRUG"
        },
        {
          "name": "Midazolam 2 mg",
          "type": "DRUG"
        },
        {
          "name": "Warfarin 10 mg",
          "type": "DRUG"
        },
        {
          "name": "Vitamin K 10 mg",
          "type": "DRUG"
        },
        {
          "name": "Omeprazole 20 mg",
          "type": "DRUG"
        },
        {
          "name": "Dextromethorphan 30 mg",
          "type": "DRUG"
        },
        {
          "name": "Caffeine 100 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Janssen Research & Development, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 28,
      "start_date": "2018-02-02",
      "completion_date": "2021-11-22",
      "has_results": false,
      "last_update_posted_date": "2025-08-21",
      "last_synced_at": "2026-09-02T21:48:01.371Z",
      "location_count": 3,
      "location_summary": "Cypress, California • Miami Springs, Florida • Durham, North Carolina",
      "locations": [
        {
          "city": "Cypress",
          "state": "California"
        },
        {
          "city": "Miami Springs",
          "state": "Florida"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03358706"
    }
  ]
}