{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Codeine+only&page=2",
    "query": {
      "intervention": "Codeine only",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Codeine+only&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T00:44:43.646Z",
  "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": "NCT01924676",
      "title": "Food Effect And Relative Bioavailability Study Of Oxycodone in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Oxycodone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pain Therapeutics",
      "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": 18,
      "start_date": "2013-08",
      "completion_date": "2013-10",
      "has_results": false,
      "last_update_posted_date": "2015-08-31",
      "last_synced_at": "2026-09-05T00:44:43.646Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01924676"
    },
    {
      "nct_id": "NCT02117583",
      "title": "Effects of Food on Oxycodone Pharmacokinetics in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Oxycodone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pain Therapeutics",
      "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": 34,
      "start_date": "2014-04",
      "completion_date": "2014-08",
      "has_results": false,
      "last_update_posted_date": "2016-04-04",
      "last_synced_at": "2026-09-05T00:44:43.646Z",
      "location_count": 2,
      "location_summary": "Overland Park, Kansas",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        },
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02117583"
    },
    {
      "nct_id": "NCT02945293",
      "title": "Cognitive, Behavioral and Aging Effects of Pain Medication in Alcohol Users",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Mild to Heavy Alcohol Consumption"
      ],
      "interventions": [
        {
          "name": "Oxycodone",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "35 Years and older"
      },
      "enrollment_count": 128,
      "start_date": "2015-11",
      "completion_date": "2021-09-01",
      "has_results": false,
      "last_update_posted_date": "2021-05-13",
      "last_synced_at": "2026-09-05T00:44:43.646Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02945293"
    },
    {
      "nct_id": "NCT05054868",
      "title": "Ketorolac vs Oxycodone for Great Toe Arthrodesis",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Arthrodesis"
      ],
      "interventions": [
        {
          "name": "Oxycodone",
          "type": "DRUG"
        },
        {
          "name": "Ketorolac",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Medstar Health Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 40,
      "start_date": "2020-04-14",
      "completion_date": "2024-07-31",
      "has_results": false,
      "last_update_posted_date": "2023-07-12",
      "last_synced_at": "2026-09-05T00:44:43.646Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05054868"
    },
    {
      "nct_id": "NCT01055704",
      "title": "Effect of Methylnaltrexone on GI Transit in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Gastric Motility Disorder"
      ],
      "interventions": [
        {
          "name": "Methylnaltrexone only",
          "type": "DRUG"
        },
        {
          "name": "Codeine only",
          "type": "DRUG"
        },
        {
          "name": "Methylnaltrexone + codeine",
          "type": "DRUG"
        },
        {
          "name": "Placebo + placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 48,
      "start_date": "2009-11",
      "completion_date": "2010-02",
      "has_results": true,
      "last_update_posted_date": "2012-06-25",
      "last_synced_at": "2026-09-05T00:44:43.646Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01055704"
    },
    {
      "nct_id": "NCT02892591",
      "title": "Cannabis Versus Oxycodone for Pain Relief",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Back Pain",
        "Neck Pain"
      ],
      "interventions": [
        {
          "name": "Cannabis",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone",
          "type": "DRUG"
        },
        {
          "name": "Placebo for Cannabis",
          "type": "DRUG"
        },
        {
          "name": "Placebo for Oxycodone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 33,
      "start_date": "2017-06-01",
      "completion_date": "2023-06-07",
      "has_results": false,
      "last_update_posted_date": "2024-02-22",
      "last_synced_at": "2026-09-05T00:44:43.646Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02892591"
    },
    {
      "nct_id": "NCT00864526",
      "title": "A Relative Bioavailability Study of Oxycodone 5 mg / Ibuprofen 400 mg Tablets Under Fasting Conditions",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Oxycodone HCl 5 mg / Ibuprofen 400 mg tablets, single dose",
          "type": "DRUG"
        },
        {
          "name": "COMBONOX® tablets, single dose",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Actavis Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 40,
      "start_date": "2006-10",
      "completion_date": "2006-10",
      "has_results": false,
      "last_update_posted_date": "2010-08-17",
      "last_synced_at": "2026-09-05T00:44:43.646Z",
      "location_count": 1,
      "location_summary": "Saint Charles, Missouri",
      "locations": [
        {
          "city": "Saint Charles",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00864526"
    },
    {
      "nct_id": "NCT02059915",
      "title": "Single-Dose, Crossover Study To Compare Bioavailability Of Two Formulations Under Fed And Fasted Conditions",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Oxycodone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pain Therapeutics",
      "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": 134,
      "start_date": "2014-04",
      "completion_date": "2014-07",
      "has_results": false,
      "last_update_posted_date": "2016-04-04",
      "last_synced_at": "2026-09-05T00:44:43.646Z",
      "location_count": 1,
      "location_summary": "Saint Paul, Minnesota",
      "locations": [
        {
          "city": "Saint Paul",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02059915"
    },
    {
      "nct_id": "NCT00484718",
      "title": "Measuring Gait And Self-Reported Pain In Patients With Osteoarthritis Of The Knee Using Placebo/Oxycodone/Celecoxib.",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "celecoxib",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "40 Years to 70 Years"
      },
      "enrollment_count": 6,
      "start_date": "2008-01-17",
      "completion_date": "2009-06-10",
      "has_results": true,
      "last_update_posted_date": "2021-04-14",
      "last_synced_at": "2026-09-05T00:44:43.646Z",
      "location_count": 2,
      "location_summary": "Palo Alto, California • Stanford, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00484718"
    },
    {
      "nct_id": "NCT00499460",
      "title": "Effects of Garlic Supplements on Opioids in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Healthy, No Evidence of Disease"
      ],
      "interventions": [
        {
          "name": "garlic powder tablets",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "oxycodone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "21 Years to 45 Years"
      },
      "enrollment_count": 15,
      "start_date": "2006-11",
      "completion_date": "2008-08",
      "has_results": true,
      "last_update_posted_date": "2017-04-07",
      "last_synced_at": "2026-09-05T00:44:43.646Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00499460"
    }
  ]
}