{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+varenicline&page=5",
    "query": {
      "intervention": "Placebo varenicline",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 136,
    "total_pages": 14,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+varenicline&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+varenicline&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-10T17:17:11.410Z",
  "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": "NCT03920215",
      "title": "Evaluation of the Long Term Follow up of the Efficacy of OC-01 Nasal Spray on Signs and Symptoms of Dry Eye Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Long Term Follow up Dry Eye Disease"
      ],
      "interventions": [
        {
          "name": "OC-01 Low Dose, 0.12 mg/mL",
          "type": "DRUG"
        },
        {
          "name": "OC-01 Mid Dose, 0.6 mg/mL",
          "type": "DRUG"
        },
        {
          "name": "OC-01 High Dose, 1.2 mg/mL",
          "type": "DRUG"
        },
        {
          "name": "Placebo (vehicle) nasal spray",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oyster Point Pharma, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 101,
      "start_date": "2018-08-15",
      "completion_date": "2019-09-20",
      "has_results": true,
      "last_update_posted_date": "2023-11-01",
      "last_synced_at": "2026-10-10T17:17:11.410Z",
      "location_count": 3,
      "location_summary": "Newport Beach, California • Indianapolis, Indiana • Andover, Massachusetts",
      "locations": [
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Andover",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03920215"
    },
    {
      "nct_id": "NCT05161208",
      "title": "OC-01 (Varenicline) Nasal Spray and Dry Eye Signs and Symptoms in Daily Disposable Contact Lens Wearers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Dry Eye"
      ],
      "interventions": [
        {
          "name": "OC-01 (varenicline 0.6mg/ml) Nasal Spray",
          "type": "DRUG"
        },
        {
          "name": "Placebo (vehicle) nasal spray",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Center for Ophthalmic and Vision Research, LLC",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 75,
      "start_date": "2021-12-03",
      "completion_date": "2022-07-25",
      "has_results": false,
      "last_update_posted_date": "2022-11-03",
      "last_synced_at": "2026-10-10T17:17:11.410Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05161208"
    },
    {
      "nct_id": "NCT01170338",
      "title": "Safety and Efficacy of the Novel Selective Nicotinic Receptor Partial Agonist, CHANTIX (Varenicline) in Patients With Acute Coronary Syndrome",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Smoking",
        "Acute Coronary Syndrome"
      ],
      "interventions": [
        {
          "name": "Varenicline 100 mg by mouth twice daily",
          "type": "DRUG"
        },
        {
          "name": "control",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Newark Beth Israel Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2008-01",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2010-07-27",
      "last_synced_at": "2026-10-10T17:17:11.410Z",
      "location_count": 1,
      "location_summary": "Newark, New Jersey",
      "locations": [
        {
          "city": "Newark",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01170338"
    },
    {
      "nct_id": "NCT01756885",
      "title": "Extended Varenicline Treatment for Smoking Among Cancer Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Smoking Cessation Counseling",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 207,
      "start_date": "2013-01",
      "completion_date": "2018-05-31",
      "has_results": true,
      "last_update_posted_date": "2019-07-30",
      "last_synced_at": "2026-10-10T17:17:11.410Z",
      "location_count": 2,
      "location_summary": "Chicago, Illinois • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01756885"
    },
    {
      "nct_id": "NCT00143299",
      "title": "A 52-Week Placebo-Controlled Study Evaluating the Safety of Varenicline",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "varenicline (CP-526,555)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "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": 375,
      "start_date": "2003-10",
      "completion_date": "2005-03",
      "has_results": false,
      "last_update_posted_date": "2007-06-04",
      "last_synced_at": "2026-10-10T17:17:11.410Z",
      "location_count": 8,
      "location_summary": "Denver, Colorado • Milford, Massachusetts • Albuquerque, New Mexico + 5 more",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Milford",
          "state": "Massachusetts"
        },
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        },
        {
          "city": "Syracuse",
          "state": "New York"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00143299"
    },
    {
      "nct_id": "NCT04403399",
      "title": "Crossover Target Engagement Study of Cholinergic Mechanisms of Gait Dysfunction in Parkinson's Disease (Project #3 - Experiment 3 [UdallP3E3])",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 34,
      "start_date": "2017-06-29",
      "completion_date": "2019-06-26",
      "has_results": true,
      "last_update_posted_date": "2021-01-27",
      "last_synced_at": "2026-10-10T17:17:11.410Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04403399"
    },
    {
      "nct_id": "NCT01524627",
      "title": "Effects of Varenicline on Smoking Reminders",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 124,
      "start_date": "2011-12",
      "completion_date": "2015-11",
      "has_results": true,
      "last_update_posted_date": "2017-08-17",
      "last_synced_at": "2026-10-10T17:17:11.410Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01524627"
    },
    {
      "nct_id": "NCT01509547",
      "title": "Varenicline for Adolescent Smoking Cessation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Varenicline",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Medical University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "14 Years to 21 Years"
      },
      "enrollment_count": 157,
      "start_date": "2012-08",
      "completion_date": "2018-01-26",
      "has_results": true,
      "last_update_posted_date": "2020-07-01",
      "last_synced_at": "2026-10-10T17:17:11.410Z",
      "location_count": 1,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01509547"
    },
    {
      "nct_id": "NCT00756275",
      "title": "Varenicline and Motivational Advice for Smokers With Substance Use Disorders",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation",
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Nicotine Replacement Treatment (NRT)",
          "type": "DRUG"
        },
        {
          "name": "varenicline",
          "type": "DRUG"
        },
        {
          "name": "Behavioral counseling for smoking cessation",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "Brown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 158,
      "start_date": "2009-01",
      "completion_date": "2014-09",
      "has_results": true,
      "last_update_posted_date": "2018-08-27",
      "last_synced_at": "2026-10-10T17:17:11.410Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00756275"
    },
    {
      "nct_id": "NCT00606892",
      "title": "Varenicline and Nicotine Interactions in Humans (VA)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "IV Nic",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 37,
      "start_date": "2007-08",
      "completion_date": "2009-11",
      "has_results": true,
      "last_update_posted_date": "2014-09-25",
      "last_synced_at": "2026-10-10T17:17:11.410Z",
      "location_count": 1,
      "location_summary": "West Haven, Connecticut",
      "locations": [
        {
          "city": "West Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00606892"
    }
  ]
}