{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational-control&page=12",
    "query": {
      "intervention": "Observational-control",
      "page": 12
    },
    "page_size": 10
  },
  "pagination": {
    "page": 12,
    "page_size": 10,
    "total_count": 644,
    "total_pages": 65,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational-control&page=13&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational-control&page=11&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-27T15:02:48.440Z",
  "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": "NCT03298841",
      "title": "Clinical Comparison of Length of Cataract Procedures With Zeiss Lumera Versus Older Zeiss Microscope",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cataract"
      ],
      "interventions": [
        {
          "name": "Zeiss",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Toyos 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": 50,
      "start_date": "2017-03-01",
      "completion_date": "2017-09-20",
      "has_results": true,
      "last_update_posted_date": "2021-04-22",
      "last_synced_at": "2026-10-27T15:02:48.440Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03298841"
    },
    {
      "nct_id": "NCT00614939",
      "title": "Treatment Effect of Saxagliptin Compared With Placebo in Patients With Type 2 Diabetes and Renal Impairment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Type 2 Diabetes"
      ],
      "interventions": [
        {
          "name": "Saxagliptin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 572,
      "start_date": "2008-01",
      "completion_date": "2010-03",
      "has_results": true,
      "last_update_posted_date": "2011-05-19",
      "last_synced_at": "2026-10-27T15:02:48.440Z",
      "location_count": 11,
      "location_summary": "Concord, California • Sacramento, California • Denver, Colorado + 8 more",
      "locations": [
        {
          "city": "Concord",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Topeka",
          "state": "Kansas"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00614939"
    },
    {
      "nct_id": "NCT01881269",
      "title": "Respiration Rate Monitoring During Transitions",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Focus of the Study is Measuring Respiratory Rate"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Medtronic - MITG",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 27,
      "start_date": "2013-06",
      "completion_date": "2013-09",
      "has_results": false,
      "last_update_posted_date": "2013-11-06",
      "last_synced_at": "2026-10-27T15:02:48.440Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01881269"
    },
    {
      "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": "2026-10-27T15:02:48.440Z",
      "location_count": 1,
      "location_summary": "Mesa, Arizona",
      "locations": [
        {
          "city": "Mesa",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03662009"
    },
    {
      "nct_id": "NCT04289571",
      "title": "Virtual Reality Mobility Assessment of Functional Vision in Retinal Disease",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cone-Rod Degeneration",
        "Rod-Cone Degeneration"
      ],
      "interventions": [
        {
          "name": "VR Mobility Tool",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "National Eye Institute (NEI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "5 Years to 120 Years"
      },
      "enrollment_count": 165,
      "start_date": "2023-07-25",
      "completion_date": "2030-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-10",
      "last_synced_at": "2026-10-27T15:02:48.440Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04289571"
    },
    {
      "nct_id": "NCT02852356",
      "title": "Validation Study Using a Time-lapse Morphometry MIRI Imaging Incubator",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fertility"
      ],
      "interventions": [
        {
          "name": "MIRI-TL Incubator",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Ovation Fertility",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 62,
      "start_date": "2016-07",
      "completion_date": "2017-12-22",
      "has_results": true,
      "last_update_posted_date": "2024-05-24",
      "last_synced_at": "2026-10-27T15:02:48.440Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02852356"
    },
    {
      "nct_id": "NCT01986686",
      "title": "Recurrence Following Nonoperative Management of 1st Episode of Hinchey II Diverticulitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diverticulitis"
      ],
      "interventions": [
        {
          "name": "Colon resection",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Stony Brook University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 107,
      "start_date": "2011-10",
      "completion_date": "2016-07-16",
      "has_results": true,
      "last_update_posted_date": "2017-10-18",
      "last_synced_at": "2026-10-27T15:02:48.440Z",
      "location_count": 1,
      "location_summary": "Stony Brook, New York",
      "locations": [
        {
          "city": "Stony Brook",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01986686"
    },
    {
      "nct_id": "NCT00383500",
      "title": "Lymphedema Prophylaxis in Breast Cancer Survivors Who Show Early Evidence of High-risk Status",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lymphedema",
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Flexitouch",
          "type": "DEVICE"
        },
        {
          "name": "Class 1 compression garment",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Stanford University",
      "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": 75,
      "start_date": "2005-05",
      "completion_date": "2009-09",
      "has_results": true,
      "last_update_posted_date": "2017-03-30",
      "last_synced_at": "2026-10-27T15:02:48.440Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00383500"
    },
    {
      "nct_id": "NCT04839718",
      "title": "Evaluation of the Achieving Depression and Anxiety Patient Centered Treatment (ADAPT) Program",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Depression",
        "Anxiety"
      ],
      "interventions": [
        {
          "name": "ADAPT",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Kaiser Permanente",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2019-04-01",
      "completion_date": "2022-12-31",
      "has_results": false,
      "last_update_posted_date": "2023-03-02",
      "last_synced_at": "2026-10-27T15:02:48.440Z",
      "location_count": 1,
      "location_summary": "Oakland, California",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04839718"
    },
    {
      "nct_id": "NCT00923858",
      "title": "The Natural History of Asymptomatic Rotator Cuff Tears",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rotator Cuff Tear"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 495,
      "start_date": "2005-07-01",
      "completion_date": "2022-06",
      "has_results": false,
      "last_update_posted_date": "2022-08-31",
      "last_synced_at": "2026-10-27T15:02:48.440Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00923858"
    }
  ]
}