{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Naltrexone+and+Acetaminophen",
    "query": {
      "intervention": "Naltrexone and Acetaminophen"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-22T12:43:37.700Z",
  "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": "NCT06245902",
      "title": "An Acute Migraine Factorial Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Migraine With or Without Aura"
      ],
      "interventions": [
        {
          "name": "Naltrexone and Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Naltrexone and Acetaminophen-High Dose",
          "type": "DRUG"
        },
        {
          "name": "Naltrexone Alone (regular dose)",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen Alone",
          "type": "DRUG"
        },
        {
          "name": "Matching Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allodynic 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": 92,
      "start_date": "2017-02-18",
      "completion_date": "2018-02-08",
      "has_results": false,
      "last_update_posted_date": "2024-02-07",
      "last_synced_at": "2026-09-22T12:43:37.700Z",
      "location_count": 1,
      "location_summary": "North Miami, Florida",
      "locations": [
        {
          "city": "North Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06245902"
    },
    {
      "nct_id": "NCT03185143",
      "title": "Low-Dose Naltrexone and Acetaminophen Combination and Sumatriptan in the Acute Treatment of Migraine With Nausea",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Migraine With and Without Aura"
      ],
      "interventions": [
        {
          "name": "Naltrexone and Acetaminophen Combination",
          "type": "DRUG"
        },
        {
          "name": "Sumatriptan 100 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allodynic Therapeutics, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 36,
      "start_date": "2017-06-27",
      "completion_date": "2018-05-07",
      "has_results": false,
      "last_update_posted_date": "2021-04-14",
      "last_synced_at": "2026-09-22T12:43:37.700Z",
      "location_count": 1,
      "location_summary": "North Miami, Florida",
      "locations": [
        {
          "city": "North Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03185143"
    },
    {
      "nct_id": "NCT03194555",
      "title": "The Preventive Treatment of Migraine With Low-Dose Naltrexone and Acetaminophen Combination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Migraine With or Without Aura"
      ],
      "interventions": [
        {
          "name": "Low-Dose Naltrexone and Acetaminophen Combination",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allodynic 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": 12,
      "start_date": "2017-08-25",
      "completion_date": "2018-07-28",
      "has_results": true,
      "last_update_posted_date": "2024-04-10",
      "last_synced_at": "2026-09-22T12:43:37.700Z",
      "location_count": 1,
      "location_summary": "North Miami, Florida",
      "locations": [
        {
          "city": "North Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03194555"
    },
    {
      "nct_id": "NCT05685225",
      "title": "Single-Site Study of Naltrexone/Acetaminophen for the Acute Treatment of Migraine: A Phase 2 Randomized Trial",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Migraine"
      ],
      "interventions": [
        {
          "name": "Stage 1: Naltrexone/Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Stage 1: Naltrexone",
          "type": "DRUG"
        },
        {
          "name": "Stage 1: Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Stage1: Placebo",
          "type": "DRUG"
        },
        {
          "name": "Stage 2: Naltrxone/Acetaminophen high dose",
          "type": "DRUG"
        },
        {
          "name": "Stage 2: Naltrexone/Acetaminophen medium dose",
          "type": "DRUG"
        },
        {
          "name": "Stage 2: Naltrxone/Acetaminophen low dose",
          "type": "DRUG"
        },
        {
          "name": "Stage 2: Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allodynic Therapeutics, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 0,
      "start_date": "2025-01-31",
      "completion_date": "2025-12-02",
      "has_results": false,
      "last_update_posted_date": "2025-12-08",
      "last_synced_at": "2026-09-22T12:43:37.700Z",
      "location_count": 1,
      "location_summary": "North Miami, Florida",
      "locations": [
        {
          "city": "North Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05685225"
    },
    {
      "nct_id": "NCT03061734",
      "title": "Low-Dose Naltrexone and Acetaminophen Combination and Its Components in the Acute Treatment of Migraine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Migraine With or Without Aura"
      ],
      "interventions": [
        {
          "name": "Naltrexone and Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Naltrexone and Acetaminophen-High Dose",
          "type": "DRUG"
        },
        {
          "name": "Naltrexone Alone (regular dose)",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen Alone",
          "type": "DRUG"
        },
        {
          "name": "Matching Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allodynic 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": 92,
      "start_date": "2017-02-18",
      "completion_date": "2018-02-08",
      "has_results": false,
      "last_update_posted_date": "2021-04-14",
      "last_synced_at": "2026-09-22T12:43:37.700Z",
      "location_count": 1,
      "location_summary": "North Miami, Florida",
      "locations": [
        {
          "city": "North Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03061734"
    },
    {
      "nct_id": "NCT03201393",
      "title": "Low-Dose Naltrexone and Acetaminophen Combination in the Treatment of Chronic Low Back Pain (ANODYNE-4)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Low Back Pain",
        "Lumbar Radiculopathy"
      ],
      "interventions": [
        {
          "name": "Low-dose naltrexone and acetaminophen combination",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allodynic 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": 12,
      "start_date": "2017-08-15",
      "completion_date": "2018-07-26",
      "has_results": false,
      "last_update_posted_date": "2021-04-14",
      "last_synced_at": "2026-09-22T12:43:37.700Z",
      "location_count": 1,
      "location_summary": "North Miami, Florida",
      "locations": [
        {
          "city": "North Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03201393"
    }
  ]
}