{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blinded+%28placebo%29&page=43",
    "query": {
      "intervention": "Blinded (placebo)",
      "page": 43
    },
    "page_size": 10
  },
  "pagination": {
    "page": 43,
    "page_size": 10,
    "total_count": 2208,
    "total_pages": 221,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blinded+%28placebo%29&page=44&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blinded+%28placebo%29&page=42&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-17T05:09:06.689Z",
  "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": "NCT02232893",
      "title": "Effect of TU-100 in Patients Undergoing Laparoscopic Colectomy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Postoperative Ileus"
      ],
      "interventions": [
        {
          "name": "Daikenchuto (TU-100)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Tsumura USA",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 69,
      "start_date": "2014-09",
      "completion_date": "2017-05",
      "has_results": true,
      "last_update_posted_date": "2020-06-19",
      "last_synced_at": "2026-10-17T05:09:06.689Z",
      "location_count": 13,
      "location_summary": "Los Angeles, California • Aurora, Colorado • Weston, Florida + 10 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Weston",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02232893"
    },
    {
      "nct_id": "NCT05463367",
      "title": "Project 1 Aim 2, Adaptations of the Brain in Chronic Pain With Opioid Exposure",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Opioid Use",
        "Opioid Dependence",
        "Opioid-use Disorder",
        "Narcotic Use",
        "Back Pain",
        "Back Injuries",
        "Chronic Pain",
        "Chronic Low-back Pain",
        "Pain, Chronic",
        "Pain;Back Low;Chronic",
        "Pain, Back"
      ],
      "interventions": [
        {
          "name": "Carbidopa-Levodopa 25 Mg-100 Mg Oral Tablet",
          "type": "DRUG"
        },
        {
          "name": "Naproxen 500 Mg",
          "type": "DRUG"
        },
        {
          "name": "Opioids",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2021-01-01",
      "completion_date": "2025-06-01",
      "has_results": false,
      "last_update_posted_date": "2024-11-27",
      "last_synced_at": "2026-10-17T05:09:06.689Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05463367"
    },
    {
      "nct_id": "NCT00808665",
      "title": "Intraoperative Infusion of Precedex to Reduce Length of Stay After Lumbar Spine Fusion",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Spinal Fusion Acquired",
        "Spinal Stenosis",
        "Lesions of Lumbosacral Intervertebral Disc",
        "Spinal Diseases"
      ],
      "interventions": [
        {
          "name": "Dexmedetomidine",
          "type": "DRUG"
        },
        {
          "name": "0.9% Saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 68,
      "start_date": "2009-06",
      "completion_date": "2012-12",
      "has_results": true,
      "last_update_posted_date": "2018-05-25",
      "last_synced_at": "2026-10-17T05:09:06.689Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00808665"
    },
    {
      "nct_id": "NCT03493828",
      "title": "Efficacy of TAP Block in Cesarean Section Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pain Control"
      ],
      "interventions": [
        {
          "name": "TAP block using Bupivacaine 0.5%",
          "type": "PROCEDURE"
        },
        {
          "name": "TAP block using Bupivacaine 0.25%",
          "type": "PROCEDURE"
        },
        {
          "name": "TAP block using Normal Saline",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "New York Presbyterian Brooklyn Methodist Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 60,
      "start_date": "2013-06",
      "completion_date": "2013-12",
      "has_results": true,
      "last_update_posted_date": "2018-11-13",
      "last_synced_at": "2026-10-17T05:09:06.689Z",
      "location_count": 1,
      "location_summary": "Brooklyn, New York",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03493828"
    },
    {
      "nct_id": "NCT00597428",
      "title": "Opioid-induced Bowel Dysfunction Pivotal Assessment of Lubiprostone",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Opioid-Induced Bowel Dysfunction"
      ],
      "interventions": [
        {
          "name": "Lubiprostone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sucampo Pharma Americas, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 437,
      "start_date": "2007-08",
      "completion_date": "2009-03",
      "has_results": true,
      "last_update_posted_date": "2019-12-10",
      "last_synced_at": "2026-10-17T05:09:06.689Z",
      "location_count": 109,
      "location_summary": "Tuscaloosa, Alabama • Phoenix, Arizona • Tempe, Arizona + 93 more",
      "locations": [
        {
          "city": "Tuscaloosa",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00597428"
    },
    {
      "nct_id": "NCT00374907",
      "title": "A Study Assessing Saxagliptin Treatment in Subjects With Type 2 Diabetes Who Are Not Controlled With Diet and Exercise",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Type 2 Diabetes"
      ],
      "interventions": [
        {
          "name": "Saxagliptin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Metformin (blinded)",
          "type": "DRUG"
        },
        {
          "name": "Metformin (open-label)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "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": 156,
      "start_date": "2006-09",
      "completion_date": "2009-12",
      "has_results": true,
      "last_update_posted_date": "2015-05-07",
      "last_synced_at": "2026-10-17T05:09:06.689Z",
      "location_count": 3,
      "location_summary": "San Diego, California • Baton Rouge, Louisiana • San Antonio, Texas",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00374907"
    },
    {
      "nct_id": "NCT03222492",
      "title": "Brentuximab Vedotin for Systemic Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Diffuse Cutaneous Systemic Sclerosis",
        "Scleroderma",
        "dcSSc"
      ],
      "interventions": [
        {
          "name": "Brentuximab Vedotin",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 17,
      "start_date": "2017-09-20",
      "completion_date": "2023-04-10",
      "has_results": true,
      "last_update_posted_date": "2026-05-05",
      "last_synced_at": "2026-10-17T05:09:06.689Z",
      "location_count": 8,
      "location_summary": "Los Angeles, California • Washington D.C., District of Columbia • Ann Arbor, Michigan + 5 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03222492"
    },
    {
      "nct_id": "NCT01537471",
      "title": "The Effects of Antihistamines on Pre-Pulse Inhibition",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Meclizine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 117,
      "start_date": "2012-01",
      "completion_date": "2012-09",
      "has_results": false,
      "last_update_posted_date": "2013-01-16",
      "last_synced_at": "2026-10-17T05:09:06.689Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01537471"
    },
    {
      "nct_id": "NCT00288171",
      "title": "Allopurinol for Renal Transplant Associated Hypertension in Children",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Hypertension",
        "Renal Transplant"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Allopurinol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "6 Years to 18 Years"
      },
      "enrollment_count": 0,
      "start_date": "2006-02",
      "completion_date": "2008-06",
      "has_results": false,
      "last_update_posted_date": "2017-09-13",
      "last_synced_at": "2026-10-17T05:09:06.689Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00288171"
    },
    {
      "nct_id": "NCT01231373",
      "title": "Polidocanol Endovenous Microfoam (PEM) Versus Vehicle for the Treatment of Saphenofemoral Junction (SFJ) Incompetence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Varicose Veins"
      ],
      "interventions": [
        {
          "name": "polidocanol injectable foam, 0.125%",
          "type": "DRUG"
        },
        {
          "name": "polidocanol injectable foam, 0.5%",
          "type": "DRUG"
        },
        {
          "name": "polidocanol injectable foam, 1.0%",
          "type": "DRUG"
        },
        {
          "name": "Vehicle",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boston Scientific Corporation",
      "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": 235,
      "start_date": "2010-11",
      "completion_date": "2014-08",
      "has_results": true,
      "last_update_posted_date": "2021-04-21",
      "last_synced_at": "2026-10-17T05:09:06.689Z",
      "location_count": 12,
      "location_summary": "Dothan, Alabama • San Diego, California • Lafayette, Indiana + 8 more",
      "locations": [
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Lafayette",
          "state": "Indiana"
        },
        {
          "city": "Frederick",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01231373"
    }
  ]
}