{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Biomarker+Feedback",
    "query": {
      "condition": "Biomarker Feedback"
    },
    "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?condition=Biomarker+Feedback&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T12:39:34.300Z",
  "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": "NCT01145729",
      "title": "Clinical Response to Biomarker Documentation of Child Secondhand Smoke Exposure",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Biomarker Feedback",
        "Smoking Cessation",
        "Secondhand Smoke Exposure",
        "Provider Behavior"
      ],
      "interventions": [
        {
          "name": "Biomarker Feedback",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "National Institutes of Health (NIH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "36 Months",
        "sex": "ALL",
        "summary": "12 Months to 36 Months"
      },
      "enrollment_count": 80,
      "start_date": "2010-06",
      "completion_date": "2010-12",
      "has_results": false,
      "last_update_posted_date": "2010-06-17",
      "last_synced_at": "2026-07-22T12:39:34.300Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01145729"
    },
    {
      "nct_id": "NCT01804257",
      "title": "Event Marker Ingested To Trigger Event Recorder 3.0 Psychiatry Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Bipolar Disorder",
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "Digital Health Feedback System",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Proteus Digital Health, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2010-05",
      "completion_date": "2011-05",
      "has_results": true,
      "last_update_posted_date": "2017-06-16",
      "last_synced_at": "2026-07-22T12:39:34.300Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts • Glen Oaks, New York",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Glen Oaks",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01804257"
    },
    {
      "nct_id": "NCT01605643",
      "title": "Biomarker Feedback to Motivate Tobacco Cessation in Pregnant Alaska Native Women",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer",
        "Tobacco Use",
        "Pregnancy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "Up to 50 Years"
      },
      "enrollment_count": 150,
      "start_date": "2012-03",
      "completion_date": "2017-12",
      "has_results": false,
      "last_update_posted_date": "2017-12-19",
      "last_synced_at": "2026-07-22T12:39:34.300Z",
      "location_count": 1,
      "location_summary": "Anchorage, Alaska",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01605643"
    },
    {
      "nct_id": "NCT03475485",
      "title": "ID-Cap System Under Direct Observation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "ID-Capsule- Active",
          "type": "DEVICE"
        },
        {
          "name": "Wearable Sensor",
          "type": "DEVICE"
        },
        {
          "name": "Placebo",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "EtectRX, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 36,
      "start_date": "2018-03-22",
      "completion_date": "2018-06-01",
      "has_results": false,
      "last_update_posted_date": "2018-06-11",
      "last_synced_at": "2026-07-22T12:39:34.300Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03475485"
    },
    {
      "nct_id": "NCT07307326",
      "title": "Biomarker Feedback Intervention",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "High Risk Drinking",
        "College Student Drinking"
      ],
      "interventions": [
        {
          "name": "eCHECKUP TO GO (eCTG)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "eCHECKUPTOGO + brief personalized alcohol biomarker feedback intervention (eCTG + TAC)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Penn State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "23 Years",
        "sex": "ALL",
        "summary": "18 Years to 23 Years"
      },
      "enrollment_count": 150,
      "start_date": "2026-10-15",
      "completion_date": "2027-12-15",
      "has_results": false,
      "last_update_posted_date": "2026-07-08",
      "last_synced_at": "2026-07-22T12:39:34.300Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07307326"
    },
    {
      "nct_id": "NCT01497158",
      "title": "Promoting Home Smoking Restrictions: Biomarker Feedback to Smoking and Non-Smoking Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation",
        "Tobacco Use Disorder"
      ],
      "interventions": [
        {
          "name": "Self-help brochure",
          "type": "OTHER"
        },
        {
          "name": "Biomarker feedback",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 122,
      "start_date": "2007-06",
      "completion_date": "2012-02",
      "has_results": false,
      "last_update_posted_date": "2014-08-22",
      "last_synced_at": "2026-07-22T12:39:34.300Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01497158"
    },
    {
      "nct_id": "NCT00169260",
      "title": "Proactive Health Intervention for Tobacco Users (Get PHIT)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Smoking"
      ],
      "interventions": [
        {
          "name": "motivational counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "placebo",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Kaiser Permanente",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 536,
      "start_date": "2005-02",
      "completion_date": "2010-02",
      "has_results": false,
      "last_update_posted_date": "2018-08-13",
      "last_synced_at": "2026-07-22T12:39:34.300Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00169260"
    },
    {
      "nct_id": "NCT02018640",
      "title": "Biomarker Feedback to Motivate Tobacco Cessation in Pregnant ALaska Native Women: Phase 2",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer",
        "Tobacco Use",
        "Pregnancy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 39,
      "start_date": "2013-12",
      "completion_date": "2015-08",
      "has_results": false,
      "last_update_posted_date": "2017-12-19",
      "last_synced_at": "2026-07-22T12:39:34.300Z",
      "location_count": 1,
      "location_summary": "Anchorage, Alaska",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02018640"
    },
    {
      "nct_id": "NCT01574560",
      "title": "P60 Program Project Grant-Outreach for Smoke-Free Homes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation",
        "Tobacco Cessation"
      ],
      "interventions": [
        {
          "name": "Brochure",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Counseling",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Minnesota",
      "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": 212,
      "start_date": "2011-01",
      "completion_date": "2013-04",
      "has_results": false,
      "last_update_posted_date": "2014-08-06",
      "last_synced_at": "2026-07-22T12:39:34.300Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01574560"
    },
    {
      "nct_id": "NCT03653897",
      "title": "Performance of the ID-Cap System, an Ingestion Event Marker, in the Clinical Setting as an Aid to Measure Medication Adherence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "ID-Capsule- Active",
          "type": "DEVICE"
        },
        {
          "name": "Wearable Sensor",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "EtectRX, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 13,
      "start_date": "2018-07-31",
      "completion_date": "2018-12-15",
      "has_results": false,
      "last_update_posted_date": "2020-08-04",
      "last_synced_at": "2026-07-22T12:39:34.300Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03653897"
    }
  ]
}