{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Dextromethorphan+hydrobromide+with+guaifenesin",
    "query": {
      "intervention": "Dextromethorphan hydrobromide with guaifenesin"
    },
    "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": "2026-10-01T09:31:10.476Z",
  "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": "NCT02062710",
      "title": "Antitussive Effect of a Naturally Flavored Syrup Containing Diphenhydramine, Compared With Dextromethorphan and Placebo",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Cough Reflex Sensitivity"
      ],
      "interventions": [
        {
          "name": "diphenhydramine/phenylephrine/cocoa; dextromethorophan; placebo",
          "type": "DRUG"
        },
        {
          "name": "diphenhydramine/phenylephrine/cocoa; placebo; dextromethorphan",
          "type": "DRUG"
        },
        {
          "name": "dextromethorphan; diphenhydramine/phenylephrine/cocoa; placebo",
          "type": "DRUG"
        },
        {
          "name": "dextromethorophan; placebo; diphenhydramine/phenylephrine/cocoa",
          "type": "DRUG"
        },
        {
          "name": "placebo; diphenhydramine/phenylephrine/cocoa; dextromethorphan",
          "type": "DRUG"
        },
        {
          "name": "placebo; dextromethorphan; diphenhydramine/phenylephrine/cocoa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Montefiore Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 22,
      "start_date": "2014-01",
      "completion_date": "2014-06",
      "has_results": true,
      "last_update_posted_date": "2018-02-28",
      "last_synced_at": "2026-10-01T09:31:10.476Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02062710"
    },
    {
      "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": "2026-10-01T09:31:10.476Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00377403"
    },
    {
      "nct_id": "NCT04887194",
      "title": "PK Study to Assess Drug-drug Interaction and QTc Between Sitravatinib and a Cocktail of Substrates",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Advanced Solid Tumor"
      ],
      "interventions": [
        {
          "name": "Sitravatinib",
          "type": "DRUG"
        },
        {
          "name": "Warfarin",
          "type": "DRUG"
        },
        {
          "name": "Dextromethorphan",
          "type": "DRUG"
        },
        {
          "name": "Midazolam",
          "type": "DRUG"
        },
        {
          "name": "Digoxin",
          "type": "DRUG"
        },
        {
          "name": "Rosuvastatin",
          "type": "DRUG"
        },
        {
          "name": "Nivolumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mirati Therapeutics Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2021-04-08",
      "completion_date": "2022-12-22",
      "has_results": false,
      "last_update_posted_date": "2024-05-08",
      "last_synced_at": "2026-10-01T09:31:10.476Z",
      "location_count": 5,
      "location_summary": "Goshen, Indiana • Austin, Texas • San Antonio, Texas + 2 more",
      "locations": [
        {
          "city": "Goshen",
          "state": "Indiana"
        },
        {
          "city": "Austin",
          "state": "Texas"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        },
        {
          "city": "Fairfax",
          "state": "Virginia"
        },
        {
          "city": "Tacoma",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04887194"
    },
    {
      "nct_id": "NCT06716645",
      "title": "A Clinical Evidence Study Evaluating Quality of Life Parameters Following Treatment With Robitussin",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Common Cold",
        "Cough"
      ],
      "interventions": [
        {
          "name": "Robitussin Maximum Strength Cough and Chest Congestion DM",
          "type": "DRUG"
        },
        {
          "name": "Robitussin Maximum Strength Nighttime Cough DM",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "HALEON",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 244,
      "start_date": "2024-12-04",
      "completion_date": "2025-02-14",
      "has_results": true,
      "last_update_posted_date": "2026-02-20",
      "last_synced_at": "2026-10-01T09:31:10.476Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06716645"
    }
  ]
}