{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=metaxalone+m640",
    "query": {
      "intervention": "metaxalone m640"
    },
    "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": "2026-09-08T20:51:48.972Z",
  "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": "NCT06382662",
      "title": "Assess the Effect of Metaxalone 640 mg (M640) Compared to Tizanidine 8 mg on Truck Driving Ability and Cognition",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Cognitive Impairment"
      ],
      "interventions": [
        {
          "name": "metaxalone m640",
          "type": "DRUG"
        },
        {
          "name": "tizanidine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Primus Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "20 Years to 70 Years"
      },
      "enrollment_count": 20,
      "start_date": "2024-04-29",
      "completion_date": "2025-03-06",
      "has_results": false,
      "last_update_posted_date": "2025-08-22",
      "last_synced_at": "2026-09-08T20:51:48.972Z",
      "location_count": 1,
      "location_summary": "Peoria, Arizona",
      "locations": [
        {
          "city": "Peoria",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06382662"
    },
    {
      "nct_id": "NCT06348303",
      "title": "Study to Assess Drowsiness, Cognition, Fall Risk After Metaxalone 640 mg and Metaxalone 800 mg",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "Metaxalone m640 mg oral tablet",
          "type": "DRUG"
        },
        {
          "name": "Metaxalone 800 mg oral tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Primus Pharmaceuticals",
      "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": 20,
      "start_date": "2024-05-16",
      "completion_date": "2024-10-30",
      "has_results": false,
      "last_update_posted_date": "2025-08-07",
      "last_synced_at": "2026-09-08T20:51:48.972Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06348303"
    },
    {
      "nct_id": "NCT06157177",
      "title": "Efficacy of M640 in Acute Lumbosacral Musculoskeletal Conditions.",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Sciatica Acute",
        "Lumbar Spinal Stenosis"
      ],
      "interventions": [
        {
          "name": "Metaxalone 640 mg Oral Tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Primus Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 50,
      "start_date": "2023-11-15",
      "completion_date": "2026-11-15",
      "has_results": false,
      "last_update_posted_date": "2026-05-12",
      "last_synced_at": "2026-09-08T20:51:48.972Z",
      "location_count": 24,
      "location_summary": "Auburn, Alabama • Valley Village, California • Aventura, Florida + 21 more",
      "locations": [
        {
          "city": "Auburn",
          "state": "Alabama"
        },
        {
          "city": "Valley Village",
          "state": "California"
        },
        {
          "city": "Aventura",
          "state": "Florida"
        },
        {
          "city": "Boca Raton",
          "state": "Florida"
        },
        {
          "city": "Clearwater",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06157177"
    },
    {
      "nct_id": "NCT07801066",
      "title": "Healthy Participants Will Take One Dose of a Drug After Eating a Meal, Then Test for Drowsiness and Fall Risk With Brain Wave Monitoring Throughout the Testing. Participants Will Take a Second Dose of the Drug With the Same Testing.",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Comparison Between 2 Doses of Metaxalone to Measure Drowsiness, Cognition and Fall Risk"
      ],
      "interventions": [
        {
          "name": "Metaxalone 640 mg",
          "type": "DRUG"
        },
        {
          "name": "Metaxalone 800 MG",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Primus Pharmaceuticals",
      "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": 20,
      "start_date": "2026-09-15",
      "completion_date": "2027-01-15",
      "has_results": false,
      "last_update_posted_date": "2026-09-03",
      "last_synced_at": "2026-09-08T20:51:48.972Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07801066"
    }
  ]
}