{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Abstain+from+smoking+for+24+hours",
    "query": {
      "intervention": "Abstain from smoking for 24 hours"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 12,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Abstain+from+smoking+for+24+hours&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-07T12:19:51.783Z",
  "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": "NCT06944847",
      "title": "Vaping and Smoking Project in People With Schizophrenia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Acute Abstinence From Cigarettes vs E-cigarettes (ENDS)"
      ],
      "interventions": [
        {
          "name": "Acute (24-hour) abstinence",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Ad libitum smoking/vaping",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "State University of New York at Buffalo",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "21 Years to 50 Years"
      },
      "enrollment_count": 64,
      "start_date": "2025-02-15",
      "completion_date": "2027-04-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-09",
      "last_synced_at": "2026-10-07T12:19:51.783Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06944847"
    },
    {
      "nct_id": "NCT03840694",
      "title": "Nicotine Withdrawal and Reward Processing: Connecting Neurobiology to Real-world Behavior",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cigarette Smoking",
        "Nicotine Withdrawal"
      ],
      "interventions": [
        {
          "name": "Smoking Abstinence",
          "type": "OTHER"
        },
        {
          "name": "Ad Lib Smoking",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "21 Years to 55 Years"
      },
      "enrollment_count": 21,
      "start_date": "2019-09-10",
      "completion_date": "2021-05-13",
      "has_results": false,
      "last_update_posted_date": "2021-05-20",
      "last_synced_at": "2026-10-07T12:19:51.783Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03840694"
    },
    {
      "nct_id": "NCT00692406",
      "title": "Neuroimaging Attentional Impairment During Abstinence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking"
      ],
      "interventions": [
        {
          "name": "Smoking Abstinence",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 80,
      "start_date": "2005-06",
      "completion_date": "2009-01",
      "has_results": true,
      "last_update_posted_date": "2013-03-28",
      "last_synced_at": "2026-10-07T12:19:51.783Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00692406"
    },
    {
      "nct_id": "NCT01632384",
      "title": "The Effects of Smoking Withdrawal On Resting State Functional Connectivity",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking"
      ],
      "interventions": [
        {
          "name": "Abstain from smoking for 24 hours",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Duke 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": 0,
      "start_date": "2012-02",
      "completion_date": "2012-09",
      "has_results": false,
      "last_update_posted_date": "2017-01-31",
      "last_synced_at": "2026-10-07T12:19:51.783Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01632384"
    },
    {
      "nct_id": "NCT01287377",
      "title": "Smoking Cessation With the Nicotine Patch: A Pilot Study of Patch Messaging",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Telephone Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nicotine Patches",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 243,
      "start_date": "2010-11",
      "completion_date": "2011-11",
      "has_results": true,
      "last_update_posted_date": "2020-02-13",
      "last_synced_at": "2026-10-07T12:19:51.783Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01287377"
    },
    {
      "nct_id": "NCT07001930",
      "title": "Effects of Cannabidiol on Stress and Nicotine Withdrawal",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "CBD",
        "Stress",
        "Nicotine Dependence",
        "Tobacco Smoking"
      ],
      "interventions": [
        {
          "name": "Epidiolex",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "21 Years to 70 Years"
      },
      "enrollment_count": 90,
      "start_date": "2025-08-25",
      "completion_date": "2029-09-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-10",
      "last_synced_at": "2026-10-07T12:19:51.783Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07001930"
    },
    {
      "nct_id": "NCT06983678",
      "title": "Neural Correlates and Behavioral Impact of Withdrawal-induced Hyperalgesia Among People Who Smoke With and Without Chronic Pain",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use",
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "Smoking as usual fMRI session",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Abstinent fMRI session",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 132,
      "start_date": "2025-11-04",
      "completion_date": "2030-03-31",
      "has_results": false,
      "last_update_posted_date": "2025-11-20",
      "last_synced_at": "2026-10-07T12:19:51.783Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06983678"
    },
    {
      "nct_id": "NCT00672256",
      "title": "Neuroimaging Decision Making and Response Inhibition During Smoking Abstinence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking"
      ],
      "interventions": [
        {
          "name": "Smoking Abstinence",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 62,
      "start_date": "2007-01",
      "completion_date": "2009-03",
      "has_results": true,
      "last_update_posted_date": "2014-07-23",
      "last_synced_at": "2026-10-07T12:19:51.783Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00672256"
    },
    {
      "nct_id": "NCT05772845",
      "title": "Vaping and Smoking Withdrawal Project",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Acute Abstinence From Cigarettes vs E-cigarettes (ENDS)"
      ],
      "interventions": [
        {
          "name": "Acute (24-hour) abstinence",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Ad libitum smoking/vaping",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "State University of New York at Buffalo",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "21 Years to 50 Years"
      },
      "enrollment_count": 370,
      "start_date": "2023-02-14",
      "completion_date": "2026-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-03-09",
      "last_synced_at": "2026-10-07T12:19:51.783Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05772845"
    },
    {
      "nct_id": "NCT01684592",
      "title": "Phone-Based Postpartum Continuing Care for Smoking Cessation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation",
        "Pregnancy"
      ],
      "interventions": [
        {
          "name": "Phone-based postpartum continuing care",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Battelle Memorial Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 130,
      "start_date": "2012-10",
      "completion_date": "2015-03",
      "has_results": true,
      "last_update_posted_date": "2018-03-13",
      "last_synced_at": "2026-10-07T12:19:51.783Z",
      "location_count": 2,
      "location_summary": "Bloomington, Illinois • Baltimore, Maryland",
      "locations": [
        {
          "city": "Bloomington",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01684592"
    }
  ]
}