{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Control+group+-+observational&page=11",
    "query": {
      "intervention": "Control group - observational",
      "page": 11
    },
    "page_size": 10
  },
  "pagination": {
    "page": 11,
    "page_size": 10,
    "total_count": 537,
    "total_pages": 54,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Control+group+-+observational&page=12&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Control+group+-+observational&page=10&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-29T03:08:29.786Z",
  "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": "NCT01697995",
      "title": "Stress Induced Right Ventricular Uptake on Lexiscan Stress MPI",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Increased Right Ventricular Radiotracer Uptake"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Aiden Abidov",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 650,
      "start_date": "2013-01",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2015-11-04",
      "last_synced_at": "2026-10-29T03:08:29.786Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01697995"
    },
    {
      "nct_id": "NCT03711149",
      "title": "Activity Monitor Feedback and Interactive Tours to Improve Postoperative Ambulation",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Surgery"
      ],
      "interventions": [
        {
          "name": "Activity monitor feedback loop",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Cedars-Sinai 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": 192,
      "start_date": "2018-12-05",
      "completion_date": "2019-12-30",
      "has_results": false,
      "last_update_posted_date": "2019-03-29",
      "last_synced_at": "2026-10-29T03:08:29.786Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03711149"
    },
    {
      "nct_id": "NCT03784976",
      "title": "Iyengar Yoga Therapy for Dysmenorrhea and Endometriosis",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Secondary Dysmenorrhea",
        "Dysmenorrhea",
        "Dysmenorrhea Secondary",
        "Polycystic Ovary Syndrome",
        "Endometriosis",
        "Fibroid",
        "Menstrual Pain",
        "Menstrual Disorder",
        "Menstrual Discomfort"
      ],
      "interventions": [
        {
          "name": "Iyengar Yoga Therapy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Illinois at Urbana-Champaign",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "12 Years to 65 Years · Female only"
      },
      "enrollment_count": 90,
      "start_date": "2018-07-03",
      "completion_date": "2021-07-02",
      "has_results": false,
      "last_update_posted_date": "2018-12-24",
      "last_synced_at": "2026-10-29T03:08:29.786Z",
      "location_count": 1,
      "location_summary": "Urbana, Illinois",
      "locations": [
        {
          "city": "Urbana",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03784976"
    },
    {
      "nct_id": "NCT07649616",
      "title": "Increasing Law Enforcement Application of Automated External Defibrillators (AED)s for Cardiac Arrest",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Arrest, Out-Of-Hospital",
        "Defibrillators"
      ],
      "interventions": [
        {
          "name": "AED training adjunct",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Wayne State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2026-07-14",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-19",
      "last_synced_at": "2026-10-29T03:08:29.786Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07649616"
    },
    {
      "nct_id": "NCT04074226",
      "title": "ESP vs QL for Total Abdominal Hysterectomy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postoperative Pain"
      ],
      "interventions": [
        {
          "name": "Erector Spinae Plane block",
          "type": "PROCEDURE"
        },
        {
          "name": "Quadratus Lumborum Block",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 80 Years · Female only"
      },
      "enrollment_count": 17,
      "start_date": "2021-03-20",
      "completion_date": "2023-03-21",
      "has_results": false,
      "last_update_posted_date": "2023-04-04",
      "last_synced_at": "2026-10-29T03:08:29.786Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04074226"
    },
    {
      "nct_id": "NCT06034509",
      "title": "Cognitive and Vascular Functioning Following TBI",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Traumatic Brain Injury",
        "Cognitive Decline",
        "Vascular Dementia"
      ],
      "interventions": [
        {
          "name": "No intervention. This is an observational study.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Walter Reed National Military Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "74 Years",
        "sex": "ALL",
        "summary": "18 Years to 74 Years"
      },
      "enrollment_count": 300,
      "start_date": "2023-11-27",
      "completion_date": "2027-05",
      "has_results": false,
      "last_update_posted_date": "2025-09-26",
      "last_synced_at": "2026-10-29T03:08:29.786Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06034509"
    },
    {
      "nct_id": "NCT02564419",
      "title": "Brain Machine Interface (BMI) in Subjects Living With Quadriplegia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Cord Injury"
      ],
      "interventions": [
        {
          "name": "Medtronic Activa PC+S",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Jonathan Jagid",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "22 Years to 50 Years"
      },
      "enrollment_count": 1,
      "start_date": "2015-11",
      "completion_date": "2019-11-30",
      "has_results": false,
      "last_update_posted_date": "2020-09-18",
      "last_synced_at": "2026-10-29T03:08:29.786Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02564419"
    },
    {
      "nct_id": "NCT06388109",
      "title": "Positive Peers Intervention Clinical Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Positive Peers mobile app",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "MetroHealth Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "34 Years",
        "sex": "ALL",
        "summary": "13 Years to 34 Years"
      },
      "enrollment_count": 250,
      "start_date": "2024-06-03",
      "completion_date": "2027-11",
      "has_results": false,
      "last_update_posted_date": "2026-08-18",
      "last_synced_at": "2026-10-29T03:08:29.786Z",
      "location_count": 7,
      "location_summary": "Van Nuys, California • Newark, New Jersey • Cincinnati, Ohio + 4 more",
      "locations": [
        {
          "city": "Van Nuys",
          "state": "California"
        },
        {
          "city": "Newark",
          "state": "New Jersey"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06388109"
    },
    {
      "nct_id": "NCT04015271",
      "title": "Feasibility of Action Observation and Repetitive Task Practice on Upper Extremity Outcomes in Chronic Stroke Survivors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stroke",
        "Hemiparesis"
      ],
      "interventions": [
        {
          "name": "Action Observation + Repetitive Task Practice",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Placebo Video + Repetitive Task Practice",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Ohio State University",
      "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": 15,
      "start_date": "2019-06-27",
      "completion_date": "2019-12-31",
      "has_results": false,
      "last_update_posted_date": "2020-03-04",
      "last_synced_at": "2026-10-29T03:08:29.786Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04015271"
    },
    {
      "nct_id": "NCT07024875",
      "title": "Neuroimaging of Parkinson's",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinsons Disease (PD)"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2025-08-01",
      "completion_date": "2031-01",
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-10-29T03:08:29.786Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07024875"
    }
  ]
}