{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational-control&page=4",
    "query": {
      "intervention": "Observational-control",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 644,
    "total_pages": 65,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational-control&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational-control&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-25T20:39:17.310Z",
  "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": "NCT03168529",
      "title": "Trial Assessing the Effectiveness of Ivabradine Started at Discharge From the Observation Unit",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Ivabradine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Phillip Levy",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "19 Years to 89 Years"
      },
      "enrollment_count": 19,
      "start_date": "2018-07-01",
      "completion_date": "2021-12-31",
      "has_results": true,
      "last_update_posted_date": "2026-09-11",
      "last_synced_at": "2026-10-25T20:39:17.310Z",
      "location_count": 2,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03168529"
    },
    {
      "nct_id": "NCT02821845",
      "title": "Eccentric Motor Control After SCI",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Spinal Cord Injury"
      ],
      "interventions": [
        {
          "name": "Untrained and Trained SCI Hip or Knee",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Ohio State University",
      "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": 49,
      "start_date": "2015-06",
      "completion_date": "2019-10",
      "has_results": false,
      "last_update_posted_date": "2021-03-22",
      "last_synced_at": "2026-10-25T20:39:17.310Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02821845"
    },
    {
      "nct_id": "NCT06740266",
      "title": "The Impact of an Evidence-Based Parenting Service on Maternal Sensitivity and Infant Cellular Aging in a Population of Under-Resourced Families",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Parent Child Relationship",
        "Child Social-Emotional Development",
        "Telomere Length",
        "Epigenetic Aging"
      ],
      "interventions": [
        {
          "name": "Promoting First Relationships in Primary Care (PFR-PC)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Washington",
      "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": 250,
      "start_date": "2024-12-13",
      "completion_date": "2029-04",
      "has_results": false,
      "last_update_posted_date": "2026-02-06",
      "last_synced_at": "2026-10-25T20:39:17.310Z",
      "location_count": 1,
      "location_summary": "Raleigh, North Carolina",
      "locations": [
        {
          "city": "Raleigh",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06740266"
    },
    {
      "nct_id": "NCT04423770",
      "title": "COVID-19 Related Health and Infection Control Practices Among Dentists",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Severe Acute Respiratory Syndrome Coronavirus 2"
      ],
      "interventions": [
        {
          "name": "No intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "American Dental Association",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2196,
      "start_date": "2020-06-08",
      "completion_date": "2021-06-08",
      "has_results": false,
      "last_update_posted_date": "2021-07-22",
      "last_synced_at": "2026-10-25T20:39:17.310Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04423770"
    },
    {
      "nct_id": "NCT03897088",
      "title": "Efficacy and Safety of Tildrakizumab in the Treatment of Scalp Psoriasis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Scalp Psoriasis"
      ],
      "interventions": [
        {
          "name": "PART 1: Double-blind Placebo-controlled",
          "type": "DRUG"
        },
        {
          "name": "PART 2: Double-blind Active Treatment Extension",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sun Pharmaceutical Industries Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 231,
      "start_date": "2019-03-29",
      "completion_date": "2022-02-17",
      "has_results": true,
      "last_update_posted_date": "2023-05-31",
      "last_synced_at": "2026-10-25T20:39:17.310Z",
      "location_count": 19,
      "location_summary": "Encinitas, California • Fountain Valley, California • Fremont, California + 15 more",
      "locations": [
        {
          "city": "Encinitas",
          "state": "California"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Fremont",
          "state": "California"
        },
        {
          "city": "Huntington Beach",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03897088"
    },
    {
      "nct_id": "NCT00267891",
      "title": "Brain Changes in Adolescents While Imagining and Observing Aggressive Behavior",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Aggressive Behavior"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Neurological Disorders and Stroke (NINDS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "17 Years",
        "sex": "MALE",
        "summary": "14 Years to 17 Years · Male only"
      },
      "enrollment_count": 88,
      "start_date": "2005-12-14",
      "completion_date": "2010-08-12",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-10-25T20:39:17.310Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00267891"
    },
    {
      "nct_id": "NCT02832505",
      "title": "Applications of MRI in Kidney Disease",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Kidney Disease",
        "End-stage Kidney Disease"
      ],
      "interventions": [
        {
          "name": "No intervention but only observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2025-10-30",
      "completion_date": "2028-08-30",
      "has_results": false,
      "last_update_posted_date": "2025-03-25",
      "last_synced_at": "2026-10-25T20:39:17.310Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02832505"
    },
    {
      "nct_id": "NCT02848560",
      "title": "Monitoring Response to Orkambi in Cystic Fibrosis Lung Disease by Inhaled Xenon MRI",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cystic Fibrosis"
      ],
      "interventions": [
        {
          "name": "Hyperpolarized Xenon",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "6 Years to 12 Years"
      },
      "enrollment_count": 38,
      "start_date": "2016-03",
      "completion_date": "2025-10-31",
      "has_results": false,
      "last_update_posted_date": "2024-11-21",
      "last_synced_at": "2026-10-25T20:39:17.310Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02848560"
    },
    {
      "nct_id": "NCT03662009",
      "title": "Multi-limb Dual-task Control in Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "multilimb dual task",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "A.T. Still University of Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2017-09-01",
      "completion_date": "2020-11-30",
      "has_results": false,
      "last_update_posted_date": "2022-02-07",
      "last_synced_at": "2026-10-25T20:39:17.310Z",
      "location_count": 1,
      "location_summary": "Mesa, Arizona",
      "locations": [
        {
          "city": "Mesa",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03662009"
    },
    {
      "nct_id": "NCT05681143",
      "title": "A Crisis Prevention Program for Youth With Autism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Autism Spectrum Disorder",
        "Behavior Problem"
      ],
      "interventions": [
        {
          "name": "Crisis Prevention Arm",
          "type": "OTHER"
        },
        {
          "name": "Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Hugo W. Moser Research Institute at Kennedy Krieger, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "3 Years to 17 Years"
      },
      "enrollment_count": 61,
      "start_date": "2023-02-01",
      "completion_date": "2023-12-29",
      "has_results": false,
      "last_update_posted_date": "2024-01-03",
      "last_synced_at": "2026-10-25T20:39:17.310Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05681143"
    }
  ]
}