{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+Intervention%3B+withdrawn+before+randomization",
    "query": {
      "intervention": "No Intervention; withdrawn before randomization"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 11,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+Intervention%3B+withdrawn+before+randomization&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-24T18:49:40.874Z",
  "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": "NCT01781650",
      "title": "A Comparison of Air Insufflation, Water Immersion and Water Exchange Colonoscopy in Diagnostic Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain",
        "Colorectal Adenomas",
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "Air Insufflation method.",
          "type": "OTHER"
        },
        {
          "name": "Water Immersion method.",
          "type": "OTHER"
        },
        {
          "name": "Water Exchange method.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Presidio Ospedaliero Santa Barbara",
      "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": 288,
      "start_date": "2013-03",
      "completion_date": "2013-09",
      "has_results": false,
      "last_update_posted_date": "2014-01-15",
      "last_synced_at": "2026-09-24T18:49:40.874Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01781650"
    },
    {
      "nct_id": "NCT05145595",
      "title": "Pain Sensitivity During Puberty",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Thermal Sensory Analyzer",
          "type": "DEVICE"
        },
        {
          "name": "Pressure Stimuli",
          "type": "DEVICE"
        },
        {
          "name": "Mechanical Stimuli",
          "type": "DEVICE"
        },
        {
          "name": "Pain Ratings",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Thermal pain thresholds",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Pressure pain thresholds (PPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Mechanical temporal summation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Conditioned pain modulation (CPM) efficiency",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Offset analgesia efficiency",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cold pain tolerance",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "BEHAVIORAL"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "9 Years to 16 Years"
      },
      "enrollment_count": 36,
      "start_date": "2022-09-20",
      "completion_date": "2024-07-17",
      "has_results": false,
      "last_update_posted_date": "2026-01-09",
      "last_synced_at": "2026-09-24T18:49:40.874Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05145595"
    },
    {
      "nct_id": "NCT01120704",
      "title": "Evaluation of Treatments to Improve Smoking Cessation Medication Adherence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Smoking",
        "Smoking Cessation",
        "Adherence",
        "Nicotine Dependence",
        "Motivation"
      ],
      "interventions": [
        {
          "name": "Short Term Combination Nicotine Replacement Therapy (patch + gum)",
          "type": "DRUG"
        },
        {
          "name": "Long Term Combination Nicotine Replacement Therapy (patch + gum)",
          "type": "DRUG"
        },
        {
          "name": "Intensive Maintenance Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cognitive Medication Adherence Counseling (CAM)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Electronic Medication Monitoring Device (the Helping Hand) + Feedback",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Automated Adherence Prompting Phone Calls",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 544,
      "start_date": "2010-06",
      "completion_date": "2014-05",
      "has_results": true,
      "last_update_posted_date": "2015-12-11",
      "last_synced_at": "2026-09-24T18:49:40.874Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01120704"
    },
    {
      "nct_id": "NCT03354169",
      "title": "Daytime vs. Delayed Eating Among Obese Individuals",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Eating Condition",
          "type": "BEHAVIORAL"
        },
        {
          "name": "No Intervention; withdrawn before randomization",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Pennsylvania",
      "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": 38,
      "start_date": "2018-02-07",
      "completion_date": "2023-03-02",
      "has_results": true,
      "last_update_posted_date": "2025-11-21",
      "last_synced_at": "2026-09-24T18:49:40.874Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03354169"
    },
    {
      "nct_id": "NCT02041507",
      "title": "Water-aided Colonoscopy vs Air Insufflation Colonoscopy in Colorectal Cancer Screening",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Colorectal Cancer",
        "Colorectal Adenomas",
        "Colorectal Polyps",
        "Pain"
      ],
      "interventions": [
        {
          "name": "Air insufflation method.",
          "type": "OTHER"
        },
        {
          "name": "Water Immersion method.",
          "type": "OTHER"
        },
        {
          "name": "Water Exchange method.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Presidio Ospedaliero Santa Barbara",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "50 Years to 70 Years"
      },
      "enrollment_count": 1224,
      "start_date": "2014-02",
      "completion_date": "2016-04",
      "has_results": false,
      "last_update_posted_date": "2016-04-13",
      "last_synced_at": "2026-09-24T18:49:40.874Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02041507"
    },
    {
      "nct_id": "NCT01116986",
      "title": "Identifying Optimal Smoking Cessation Intervention Components (Cessation)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Smoking",
        "Smoking Cessation",
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Counseling before quit attempt",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Minimal In-person counseling during quit attempt",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Intensive in-person counseling during the quit attempt",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Minimal phone counseling during the quit attempt",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Intensive phone counseling during the quit attempt",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Long Term Nicotine Patch+ Nicotine Gum During Quit Attempt",
          "type": "DRUG"
        },
        {
          "name": "Short Term Nicotine Patch + Nicotine Gum during the quit attempt",
          "type": "DRUG"
        },
        {
          "name": "Pre-Quit Nicotine Gum",
          "type": "DRUG"
        },
        {
          "name": "Pre-Quit Nicotine Patch",
          "type": "DRUG"
        },
        {
          "name": "Pre-Quit Nicotine Patch + Pre-Quit Nicotine Gum",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 637,
      "start_date": "2010-06",
      "completion_date": "2014-05",
      "has_results": true,
      "last_update_posted_date": "2015-12-11",
      "last_synced_at": "2026-09-24T18:49:40.874Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01116986"
    },
    {
      "nct_id": "NCT06576076",
      "title": "Cannabis, Linked Emotions, and Adolescent Risk Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cannabis Use",
        "Depression",
        "Suicidal Ideation",
        "Adolescent Behavior"
      ],
      "interventions": [
        {
          "name": "Contingency management for cannabis abstinence",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "12 Years to 18 Years"
      },
      "enrollment_count": 200,
      "start_date": "2025-02-18",
      "completion_date": "2029-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-03-03",
      "last_synced_at": "2026-09-24T18:49:40.874Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06576076"
    },
    {
      "nct_id": "NCT01954862",
      "title": "Comparison of Methods to Distend the Colon During Insertion: CO2, Air Insufflation, Water-aided Colonoscopy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain",
        "Colorectal Adenomas",
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "Air Insufflation method.",
          "type": "OTHER"
        },
        {
          "name": "CO2 insufflation",
          "type": "OTHER"
        },
        {
          "name": "Water Immersion/CO2",
          "type": "OTHER"
        },
        {
          "name": "Water Exchange/CO2",
          "type": "OTHER"
        },
        {
          "name": "Water Immersion/AI",
          "type": "OTHER"
        },
        {
          "name": "Water Exchange/AI",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Presidio Ospedaliero Santa Barbara",
      "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": 624,
      "start_date": "2013-10",
      "completion_date": "2014-07",
      "has_results": false,
      "last_update_posted_date": "2014-07-31",
      "last_synced_at": "2026-09-24T18:49:40.874Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01954862"
    },
    {
      "nct_id": "NCT02969590",
      "title": "Regulation of Cervical Mucus Secretion",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Fertility",
        "Contraception"
      ],
      "interventions": [
        {
          "name": "Leuprolide acetate",
          "type": "DRUG"
        },
        {
          "name": "Estrogen and Progesterone Replacement",
          "type": "DRUG"
        },
        {
          "name": "Progestin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 40 Years · Female only"
      },
      "enrollment_count": 5,
      "start_date": "2015-03-29",
      "completion_date": "2017-08-23",
      "has_results": true,
      "last_update_posted_date": "2019-10-18",
      "last_synced_at": "2026-09-24T18:49:40.874Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02969590"
    },
    {
      "nct_id": "NCT01780818",
      "title": "A Comparison of Air Insufflation, Water Immersion and Water Exchange Colonoscopy in CRC Screening",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain",
        "Colorectal Adenomas",
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "Air Insufflation method.",
          "type": "OTHER"
        },
        {
          "name": "Water Immersion method.",
          "type": "OTHER"
        },
        {
          "name": "Water Exchange method.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Presidio Ospedaliero Santa Barbara",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "50 Years to 70 Years"
      },
      "enrollment_count": 288,
      "start_date": "2013-03",
      "completion_date": "2013-11",
      "has_results": false,
      "last_update_posted_date": "2014-01-15",
      "last_synced_at": "2026-09-24T18:49:40.874Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01780818"
    }
  ]
}