{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+Transdermal+Delivery+System",
    "query": {
      "intervention": "Placebo Transdermal Delivery System"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 25,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+Transdermal+Delivery+System&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-25T03:13:41.299Z",
  "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": "NCT00315848",
      "title": "The Safety and Efficacy of the Buprenorphine Transdermal Delivery System in Subjects With Osteoarthritis Pain.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Buprenorphine transdermal delivery system",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Purdue Pharma LP",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 225,
      "start_date": "1996-11",
      "completion_date": "1999-12",
      "has_results": false,
      "last_update_posted_date": "2006-05-03",
      "last_synced_at": "2026-09-25T03:13:41.299Z",
      "location_count": 10,
      "location_summary": "Huntsville, Alabama • Phoenix, Arizona • Westminster, Colorado + 6 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Westminster",
          "state": "Colorado"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00315848"
    },
    {
      "nct_id": "NCT02174718",
      "title": "Evaluation of a Transdermal Vitamin D3 Delivery System, D3forME",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vitamin D Deficiency"
      ],
      "interventions": [
        {
          "name": "Transdermal D Patch",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Oral vitamin D3",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo patch",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Oral placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 0,
      "start_date": "2015-11",
      "completion_date": "2017-11",
      "has_results": false,
      "last_update_posted_date": "2018-11-02",
      "last_synced_at": "2026-09-25T03:13:41.299Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02174718"
    },
    {
      "nct_id": "NCT07408440",
      "title": "Transdermal Testosterone Gel for Female Sexual Interest and Arousal Disorder in Peri- and Post Menopause",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Menopause",
        "Sexual Dysfunction",
        "Libido Disorder",
        "Testosterone Deficiency"
      ],
      "interventions": [
        {
          "name": "Transdermal testosterone gel",
          "type": "OTHER"
        },
        {
          "name": "Transdermal placebo gel",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 65 Years · Female only"
      },
      "enrollment_count": 150,
      "start_date": "2026-04-01",
      "completion_date": "2028-03-30",
      "has_results": false,
      "last_update_posted_date": "2026-02-17",
      "last_synced_at": "2026-09-25T03:13:41.299Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07408440"
    },
    {
      "nct_id": "NCT00313846",
      "title": "Safety and Efficacy of Buprenorphine Transdermal System in Subjects With Moderate to Severe Osteoarthritis of Hip or Knee",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Buprenorphine transdermal patch",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Purdue Pharma LP",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 529,
      "start_date": "2003-04",
      "completion_date": "2004-06",
      "has_results": true,
      "last_update_posted_date": "2012-09-03",
      "last_synced_at": "2026-09-25T03:13:41.299Z",
      "location_count": 44,
      "location_summary": "Mesa, Arizona • Phoenix, Arizona • Tucson, Arizona + 38 more",
      "locations": [
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00313846"
    },
    {
      "nct_id": "NCT00315835",
      "title": "Safety of the Buprenorphine Transdermal Delivery System in Subjects With Mod-to-Sev Pain Following Orthopedic Surgery.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "Buprenorphine transdermal delivery system",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Purdue Pharma LP",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "1996-10",
      "completion_date": "1997-11",
      "has_results": false,
      "last_update_posted_date": "2006-04-19",
      "last_synced_at": "2026-09-25T03:13:41.299Z",
      "location_count": 1,
      "location_summary": "Plantation, Florida",
      "locations": [
        {
          "city": "Plantation",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00315835"
    },
    {
      "nct_id": "NCT00469300",
      "title": "Iontophoretic Application of Acyclovir Gel to Treat Cold Sores",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Herpes Labialis"
      ],
      "interventions": [
        {
          "name": "Iontophoretic delivery of acyclovir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Transport Pharmaceuticals",
      "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": 810,
      "start_date": "2007-04",
      "completion_date": "2007-10",
      "has_results": false,
      "last_update_posted_date": "2008-02-04",
      "last_synced_at": "2026-09-25T03:13:41.299Z",
      "location_count": 13,
      "location_summary": "Birmingham, Alabama • Santa Rosa, California • Pinellas Park, Florida + 10 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Santa Rosa",
          "state": "California"
        },
        {
          "city": "Pinellas Park",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Edina",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00469300"
    },
    {
      "nct_id": "NCT00278824",
      "title": "Fentanyl Transdermal Patch With CHADD™ for Breakthrough Pain in Patients With Moderate to Severe Non-Malignant Pain",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Matrix Transdermal Fentanyl/CHADD Drug Delivery System",
          "type": "DRUG"
        },
        {
          "name": "Placebo Patch",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ZARS Pharma Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 109,
      "start_date": "2006-01",
      "completion_date": "2006-08",
      "has_results": false,
      "last_update_posted_date": "2012-06-05",
      "last_synced_at": "2026-09-25T03:13:41.299Z",
      "location_count": 15,
      "location_summary": "Phoenix, Arizona • Jacksonville, Florida • Marietta, Georgia + 12 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Marietta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "West Des Moines",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00278824"
    },
    {
      "nct_id": "NCT01234142",
      "title": "A Study Evaluating the Absorption Of Varenicline Through The Skin Following Once Daily Application Of A Patch For 14 Days",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "varenicline free base patch",
          "type": "DRUG"
        },
        {
          "name": "placebo patch",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "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": 45,
      "start_date": "2010-11",
      "completion_date": "2011-03",
      "has_results": false,
      "last_update_posted_date": "2011-10-14",
      "last_synced_at": "2026-09-25T03:13:41.299Z",
      "location_count": 1,
      "location_summary": "Fargo, North Dakota",
      "locations": [
        {
          "city": "Fargo",
          "state": "North Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01234142"
    },
    {
      "nct_id": "NCT03721900",
      "title": "Ketamine for Major Depressive Disorder",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "SHX-001 Active low dose",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "SHX-001 Active High dose",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Shenox Pharmaceuticals, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 14,
      "start_date": "2018-12-28",
      "completion_date": "2019-06-06",
      "has_results": false,
      "last_update_posted_date": "2019-04-25",
      "last_synced_at": "2026-09-25T03:13:41.299Z",
      "location_count": 3,
      "location_summary": "Gaithersburg, Maryland • Boston, Massachusetts • Dayton, Ohio",
      "locations": [
        {
          "city": "Gaithersburg",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Dayton",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03721900"
    },
    {
      "nct_id": "NCT02138357",
      "title": "Butrans for Treatment of Restless Legs Syndrome",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Restless Legs Syndrome"
      ],
      "interventions": [
        {
          "name": "buprenorphine transdermal delivery system (BTDS)",
          "type": "DRUG"
        },
        {
          "name": "Placebo for BTDS patch",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "25 Years to 75 Years"
      },
      "enrollment_count": 0,
      "start_date": "2014-04",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2023-10-25",
      "last_synced_at": "2026-09-25T03:13:41.299Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02138357"
    }
  ]
}