{
  "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": 1038,
    "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": "2026-10-21T08:00:15.015Z",
  "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": "NCT06143670",
      "title": "A Clinical Study Investigating the Effects of a Dentifrice Containing 0.454% Stannous Fluoride on Gingivitis Treatment and Plaque Reduction When Used Twice Daily for 12 Weeks",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Gingivitis"
      ],
      "interventions": [
        {
          "name": "Stannous fluoride toothpaste",
          "type": "DRUG"
        },
        {
          "name": "Sodium fluoride toothpaste",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "HALEON",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 159,
      "start_date": "2023-11-29",
      "completion_date": "2024-03-12",
      "has_results": true,
      "last_update_posted_date": "2025-03-21",
      "last_synced_at": "2026-10-21T08:00:15.015Z",
      "location_count": 1,
      "location_summary": "Fort Wayne, Indiana",
      "locations": [
        {
          "city": "Fort Wayne",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06143670"
    },
    {
      "nct_id": "NCT06660069",
      "title": "A Study to Evaluate the Efficacy of a Stannous Fluoride Toothpaste With a Cetylpyridinium Chloride Mouthwash in Improving Gingival Health and Reducing Plaque Accumulation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dental Plaque",
        "Gingivitis"
      ],
      "interventions": [
        {
          "name": "Stannous Fluoride Toothpaste (Parodontax Complete Protection Toothpaste)",
          "type": "DRUG"
        },
        {
          "name": "CPC Mouthwash (Parodontax Active Gum Health Mouthwash)",
          "type": "DRUG"
        },
        {
          "name": "Regular Fluoride Toothpaste (Crest Cavity Protection)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "HALEON",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 199,
      "start_date": "2024-11-18",
      "completion_date": "2025-03-11",
      "has_results": true,
      "last_update_posted_date": "2026-03-18",
      "last_synced_at": "2026-10-21T08:00:15.015Z",
      "location_count": 1,
      "location_summary": "Fort Wayne, Indiana",
      "locations": [
        {
          "city": "Fort Wayne",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06660069"
    },
    {
      "nct_id": "NCT02874703",
      "title": "Mechanisms of Diastolic Dysfunction Among Persons With HIV Compared With Non-HIV Control Subjects",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "HIV",
        "Diastolic Dysfunction",
        "Myocardial Fibrosis"
      ],
      "interventions": [
        {
          "name": "Cardiac MRI/MRS",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 48,
      "start_date": "2016-08",
      "completion_date": "2019-08",
      "has_results": false,
      "last_update_posted_date": "2019-10-15",
      "last_synced_at": "2026-10-21T08:00:15.015Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02874703"
    },
    {
      "nct_id": "NCT03194295",
      "title": "Activating Community Support for Substance Users",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Substance Use Disorders"
      ],
      "interventions": [
        {
          "name": "Community Support Intervention Group",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Substance Use Disorder Educational Group",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "21 Years to 75 Years"
      },
      "enrollment_count": 49,
      "start_date": "2018-01-10",
      "completion_date": "2020-03-16",
      "has_results": false,
      "last_update_posted_date": "2020-09-21",
      "last_synced_at": "2026-10-21T08:00:15.015Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03194295"
    },
    {
      "nct_id": "NCT06644261",
      "title": "Transvaginal Versus Fluoroscopy-guided Trans Gluteal Pudendal Nerve Block for Pudendal Neuralgia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pudendal Neuralgia",
        "Chronic Pelvic Pain Syndrome"
      ],
      "interventions": [
        {
          "name": "Bupivacaine injection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Louisville",
      "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": 40,
      "start_date": "2024-06-27",
      "completion_date": "2029-07-01",
      "has_results": false,
      "last_update_posted_date": "2024-12-18",
      "last_synced_at": "2026-10-21T08:00:15.015Z",
      "location_count": 1,
      "location_summary": "Louisville, Kentucky",
      "locations": [
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06644261"
    },
    {
      "nct_id": "NCT00607659",
      "title": "Immunopathogenesis of Chlamydia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "CHLAMYDIA INFECTIONS"
      ],
      "interventions": [
        {
          "name": "No intervention, only observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Arkansas Children's Hospital Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "21 Years",
        "sex": "FEMALE",
        "summary": "11 Years to 21 Years · Female only"
      },
      "enrollment_count": 29,
      "start_date": "2008-01",
      "completion_date": "2016-01",
      "has_results": false,
      "last_update_posted_date": "2016-04-14",
      "last_synced_at": "2026-10-21T08:00:15.015Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00607659"
    },
    {
      "nct_id": "NCT01968824",
      "title": "Brachial Plexus Block in Post-Op Pain Control After Distal Upper Extremity Fracture: A Prospective Randomized Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Brachial Plexus Nerve Block",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 99,
      "start_date": "2013-01",
      "completion_date": "2016-07",
      "has_results": false,
      "last_update_posted_date": "2017-01-23",
      "last_synced_at": "2026-10-21T08:00:15.015Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01968824"
    },
    {
      "nct_id": "NCT02032823",
      "title": "Olaparib as Adjuvant Treatment in Patients With Germline BRCA Mutated High Risk HER2 Negative Primary Breast Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Olaparib",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "130 Years",
        "sex": "ALL",
        "summary": "18 Years to 130 Years"
      },
      "enrollment_count": 1837,
      "start_date": "2014-04-22",
      "completion_date": "2029-05-28",
      "has_results": true,
      "last_update_posted_date": "2026-07-14",
      "last_synced_at": "2026-10-21T08:00:15.015Z",
      "location_count": 368,
      "location_summary": "Anchorage, Alabama • Anchorage, Alaska • Gilbert, Arizona + 321 more",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Fort Smith",
          "state": "Arkansas"
        },
        {
          "city": "Baldwin Park",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02032823"
    },
    {
      "nct_id": "NCT02278120",
      "title": "Study of Efficacy and Safety in Premenopausal Women With Hormone Receptor Positive, HER2-negative Advanced Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Advanced Metastatic Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Ribociclib",
          "type": "DRUG"
        },
        {
          "name": "Tamoxifen",
          "type": "DRUG"
        },
        {
          "name": "Letrozole",
          "type": "DRUG"
        },
        {
          "name": "Anastrozole",
          "type": "DRUG"
        },
        {
          "name": "Goserelin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "59 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 59 Years · Female only"
      },
      "enrollment_count": 672,
      "start_date": "2014-11-20",
      "completion_date": "2023-04-20",
      "has_results": true,
      "last_update_posted_date": "2024-03-12",
      "last_synced_at": "2026-10-21T08:00:15.015Z",
      "location_count": 35,
      "location_summary": "Bakersfield, California • Los Angeles, California • Denver, Colorado + 29 more",
      "locations": [
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Danbury",
          "state": "Connecticut"
        },
        {
          "city": "Fort Myers",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02278120"
    },
    {
      "nct_id": "NCT01935050",
      "title": "Guided Self-Help for Depression in Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depression",
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "Guided Cognitive-Behavioral Self-Help",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "35 Years to 85 Years"
      },
      "enrollment_count": 34,
      "start_date": "2013-04",
      "completion_date": "2016-04",
      "has_results": false,
      "last_update_posted_date": "2017-12-12",
      "last_synced_at": "2026-10-21T08:00:15.015Z",
      "location_count": 1,
      "location_summary": "Piscataway, New Jersey",
      "locations": [
        {
          "city": "Piscataway",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01935050"
    }
  ]
}