{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=negative+control&page=37",
    "query": {
      "intervention": "negative control",
      "page": 37
    },
    "page_size": 10
  },
  "pagination": {
    "page": 37,
    "page_size": 10,
    "total_count": 1040,
    "total_pages": 104,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=negative+control&page=38&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=negative+control&page=36&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-27T17:06:33.164Z",
  "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": "NCT02354092",
      "title": "Paracervical Block for Pain Control With Osmotic Dilator Placement",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Abortion Late",
        "Pain"
      ],
      "interventions": [
        {
          "name": "Local anesthetic for tenaculum placement",
          "type": "PROCEDURE"
        },
        {
          "name": "Sham",
          "type": "PROCEDURE"
        },
        {
          "name": "Paracervical Block",
          "type": "PROCEDURE"
        },
        {
          "name": "Dilator Placement",
          "type": "PROCEDURE"
        },
        {
          "name": "Post-procedural assessment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Preprocedural pain control",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 14,
      "start_date": "2015-04-02",
      "completion_date": "2015-08-25",
      "has_results": true,
      "last_update_posted_date": "2019-06-11",
      "last_synced_at": "2026-10-27T17:06:33.164Z",
      "location_count": 2,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02354092"
    },
    {
      "nct_id": "NCT00452114",
      "title": "In-exsufflator Cough Assist Device in Patients With Symptomatic Bronchiectasis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Bronchiectasis"
      ],
      "interventions": [
        {
          "name": "In-Exsufflator Cough Assist Device",
          "type": "DEVICE"
        },
        {
          "name": "Active Comparator: Flutter Valve Device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2004-04",
      "completion_date": "2008-05",
      "has_results": true,
      "last_update_posted_date": "2018-09-18",
      "last_synced_at": "2026-10-27T17:06:33.164Z",
      "location_count": 2,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        },
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00452114"
    },
    {
      "nct_id": "NCT04421404",
      "title": "Effects of COVID-19 Convalescent Plasma (CCP) on Coronavirus-associated Complications in Hospitalized Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "COVID-19",
        "Sars-CoV2"
      ],
      "interventions": [
        {
          "name": "COVID-19 Convalescent Plasma (CCP)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Priscilla Hsue, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 34,
      "start_date": "2020-06-09",
      "completion_date": "2021-04-30",
      "has_results": true,
      "last_update_posted_date": "2022-10-07",
      "last_synced_at": "2026-10-27T17:06:33.164Z",
      "location_count": 3,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04421404"
    },
    {
      "nct_id": "NCT04259047",
      "title": "Health Beliefs, Glycemic Control, and Preventing Cognitive Decline in African Americans with Diabetes and Mild Cognitive Impairment: a Randomized Clinical Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Mild Cognitive Impairment",
        "Diabetes"
      ],
      "interventions": [
        {
          "name": "Diabetes Regulation for Eyesight and Memory",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Enhanced Usual Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 145,
      "start_date": "2021-10-25",
      "completion_date": "2024-08-31",
      "has_results": false,
      "last_update_posted_date": "2024-11-21",
      "last_synced_at": "2026-10-27T17:06:33.164Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04259047"
    },
    {
      "nct_id": "NCT05593016",
      "title": "Adolescents and Young Adults (AYAs) With Advanced Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Adolescent and Young Adult Cancer Patient"
      ],
      "interventions": [
        {
          "name": "Symptom Management for Improved Physical and Emotional Wellbeing (SMILE)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Education Control Arm",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "15 Years to 29 Years"
      },
      "enrollment_count": 75,
      "start_date": "2023-01-17",
      "completion_date": "2024-08-01",
      "has_results": true,
      "last_update_posted_date": "2025-11-03",
      "last_synced_at": "2026-10-27T17:06:33.164Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05593016"
    },
    {
      "nct_id": "NCT04805190",
      "title": "Study of Pain Catastrophizing-2 (SPAC-2)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis, Knee"
      ],
      "interventions": [
        {
          "name": "Cognitive-Behavioral Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Pain Education",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "45 Years to 85 Years"
      },
      "enrollment_count": 99,
      "start_date": "2021-10-15",
      "completion_date": "2023-12-12",
      "has_results": false,
      "last_update_posted_date": "2024-05-14",
      "last_synced_at": "2026-10-27T17:06:33.164Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04805190"
    },
    {
      "nct_id": "NCT06134882",
      "title": "OUD Smartphone Services",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Opioid-Related Disorders",
        "Drug Abuse"
      ],
      "interventions": [
        {
          "name": "Contingency management",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cognitive-Behavior Therapy Modules",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Peer Contingency Management (CM) Guide",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Drug testing",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Wellness modules",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Peer technical support",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Western Michigan University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 97,
      "start_date": "2024-04-23",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-25",
      "last_synced_at": "2026-10-27T17:06:33.164Z",
      "location_count": 1,
      "location_summary": "Kalamazoo, Michigan",
      "locations": [
        {
          "city": "Kalamazoo",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06134882"
    },
    {
      "nct_id": "NCT01821274",
      "title": "A 21-Day Topical Safety Study of Diltiazem Hydrochloride Using a Cumulative Irritant Patch Test Design",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Skin Irritation"
      ],
      "interventions": [
        {
          "name": "Diltiazem Hydrochloride 2% Cream",
          "type": "DRUG"
        },
        {
          "name": "Vehicle Cream",
          "type": "DRUG"
        },
        {
          "name": "0.1% solution o sodium lauryl sulfate (SLS)",
          "type": "DRUG"
        },
        {
          "name": "Saline 0.9%",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ventrus Biosciences, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 30,
      "start_date": "2013-03",
      "completion_date": "2013-09",
      "has_results": false,
      "last_update_posted_date": "2013-08-21",
      "last_synced_at": "2026-10-27T17:06:33.164Z",
      "location_count": 1,
      "location_summary": "Paramus, New Jersey",
      "locations": [
        {
          "city": "Paramus",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01821274"
    },
    {
      "nct_id": "NCT02189382",
      "title": "Evaluation of the Safety and Efficacy of an Oxalate Gel or Negative Control on Dentinal Hypersensitivity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dentin Sensitivity"
      ],
      "interventions": [
        {
          "name": "Potassium Oxalate",
          "type": "DEVICE"
        },
        {
          "name": "Water",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Procter and Gamble",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2014-06",
      "completion_date": "2014-07",
      "has_results": true,
      "last_update_posted_date": "2018-08-20",
      "last_synced_at": "2026-10-27T17:06:33.164Z",
      "location_count": 1,
      "location_summary": "Las Vegas, Nevada",
      "locations": [
        {
          "city": "Las Vegas",
          "state": "Nevada"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02189382"
    },
    {
      "nct_id": "NCT05079620",
      "title": "Early Antibiotics After Aspiration in ICU Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Aspiration",
        "Aspiration Pneumonia"
      ],
      "interventions": [
        {
          "name": "Ceftriaxone",
          "type": "DRUG"
        },
        {
          "name": "Amoxicillin clavulanic acid",
          "type": "DRUG"
        },
        {
          "name": "Cefepime",
          "type": "DRUG"
        },
        {
          "name": "Vancomycin",
          "type": "DRUG"
        },
        {
          "name": "Levofloxacin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "UConn Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 5,
      "start_date": "2021-11-30",
      "completion_date": "2024-04-12",
      "has_results": true,
      "last_update_posted_date": "2025-12-30",
      "last_synced_at": "2026-10-27T17:06:33.164Z",
      "location_count": 1,
      "location_summary": "Farmington, Connecticut",
      "locations": [
        {
          "city": "Farmington",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05079620"
    }
  ]
}