{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+study&page=19",
    "query": {
      "intervention": "Observational study",
      "page": 19
    },
    "page_size": 10
  },
  "pagination": {
    "page": 19,
    "page_size": 10,
    "total_count": 4385,
    "total_pages": 439,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+study&page=20&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+study&page=18&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-18T14:01:28.183Z",
  "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": "NCT07216677",
      "title": "A Real-World Study of Interventional Clinical Outcomes in Patients With Open Angle Glaucoma and Other Chronic Eye Diseases",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Glaucoma",
        "AMD",
        "Diabetic Retinopathy (DR)"
      ],
      "interventions": [
        {
          "name": "Chronic Disease Intervention CDI",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Interstat LLC",
      "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": 300,
      "start_date": "2024-10-10",
      "completion_date": "2027-10-25",
      "has_results": false,
      "last_update_posted_date": "2025-10-15",
      "last_synced_at": "2026-10-18T14:01:28.183Z",
      "location_count": 1,
      "location_summary": "White Plains, New York",
      "locations": [
        {
          "city": "White Plains",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07216677"
    },
    {
      "nct_id": "NCT07277231",
      "title": "A Study to Investigate Sonrotoclax (BGB-11417) Plus Zanubrutinib (BGB-3111) Compared With Venetoclax Plus Acalabrutinib in Adults With Previously Untreated Chronic Lymphocytic Leukemia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Lymphocytic Leukemia"
      ],
      "interventions": [
        {
          "name": "Sonrotoclax",
          "type": "DRUG"
        },
        {
          "name": "Zanubrutinib",
          "type": "DRUG"
        },
        {
          "name": "Acalabrutinib",
          "type": "DRUG"
        },
        {
          "name": "Venetoclax",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "BeOne Medicines",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 500,
      "start_date": "2026-01-22",
      "completion_date": "2031-11",
      "has_results": false,
      "last_update_posted_date": "2026-09-28",
      "last_synced_at": "2026-10-18T14:01:28.183Z",
      "location_count": 22,
      "location_summary": "Duarte, California • Orange, California • Palo Alto, California + 19 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07277231"
    },
    {
      "nct_id": "NCT03907254",
      "title": "Biopsychosocial Effect of Service Dog Training on Post-traumatic Stress (PTS) and Post Concussive Symptoms",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Post-traumatic Stress Disorder",
        "Posttraumatic Stress Disorder",
        "Traumatic Brain Injury"
      ],
      "interventions": [
        {
          "name": "Service Dog Training Program",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Henry M. Jackson Foundation for the Advancement of Military Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 156,
      "start_date": "2019-03-05",
      "completion_date": "2022-10-07",
      "has_results": false,
      "last_update_posted_date": "2025-09-03",
      "last_synced_at": "2026-10-18T14:01:28.183Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03907254"
    },
    {
      "nct_id": "NCT02377102",
      "title": "Does Physical Therapy Prevent Total Knee Arthroplasty in Patients With End Stage Osteoarthritis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Knee Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Physical Therapy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 65,
      "start_date": "2015-02",
      "completion_date": "2017-10",
      "has_results": false,
      "last_update_posted_date": "2017-11-14",
      "last_synced_at": "2026-10-18T14:01:28.183Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02377102"
    },
    {
      "nct_id": "NCT07566975",
      "title": "Real-World Assessment of VEVYE® for Short-Term Symptom and Sign Improvement of Dry Eye Disease in a Neuro-Ophthalmology Clinic: A 6-Month Prospective Observational Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Dry Eye"
      ],
      "interventions": [
        {
          "name": "Cyclosporine ophthalmic solution 0.1%",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Neuro-Ophthalmology of Texas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2026-03-31",
      "completion_date": "2026-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-05",
      "last_synced_at": "2026-10-18T14:01:28.183Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07566975"
    },
    {
      "nct_id": "NCT01822184",
      "title": "Observational Study to Evaluate Neurodevelopmental Status in Pediatric Patients With Hunter Syndrome (MPS II)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Mucopolysaccharidosis (MPS)",
        "Hunter Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Shire",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "18 Years",
        "sex": "MALE",
        "summary": "2 Years to 18 Years · Male only"
      },
      "enrollment_count": 100,
      "start_date": "2013-01-18",
      "completion_date": "2016-10-05",
      "has_results": false,
      "last_update_posted_date": "2021-03-17",
      "last_synced_at": "2026-10-18T14:01:28.183Z",
      "location_count": 3,
      "location_summary": "Oakland, California • Chicago, Illinois • Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01822184"
    },
    {
      "nct_id": "NCT05619900",
      "title": "Registry of Patients Diagnosed With Lysosomal Storage Diseases",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Mucopolysaccharidosis I",
        "Mucopolysaccharidosis II",
        "Mucopolysaccharidosis IV A",
        "Mucopolysaccharidosis VI",
        "Mucopolysaccharidosis VII",
        "Pompe Disease Infantile-Onset",
        "Neuronopathic Gaucher Disease",
        "Wolman Disease"
      ],
      "interventions": [
        {
          "name": "There is no intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "Up to 64 Years"
      },
      "enrollment_count": 250,
      "start_date": "2022-05-31",
      "completion_date": "2050-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-08",
      "last_synced_at": "2026-10-18T14:01:28.183Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05619900"
    },
    {
      "nct_id": "NCT04029298",
      "title": "Home-based Prediabetes Care in Acoma Pueblo - Study 1",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "PreDiabetes"
      ],
      "interventions": [
        {
          "name": "Lifestyle Interventions",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of New Mexico",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "21 Years to 60 Years"
      },
      "enrollment_count": 0,
      "start_date": "2023-03-01",
      "completion_date": "2024-07-01",
      "has_results": false,
      "last_update_posted_date": "2024-07-03",
      "last_synced_at": "2026-10-18T14:01:28.183Z",
      "location_count": 1,
      "location_summary": "Acoma Pueblo, New Mexico",
      "locations": [
        {
          "city": "Acoma Pueblo",
          "state": "New Mexico"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04029298"
    },
    {
      "nct_id": "NCT06305247",
      "title": "A Study to Assess IPN01194 When Administered Alone in Adults With Advanced Solid Tumours",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Melanoma",
        "Head and Neck Squamous Cell Carcinoma",
        "Pancreatic Ductal Adenocarcinoma",
        "Colorectal Cancer",
        "Solid Tumor"
      ],
      "interventions": [
        {
          "name": "IPN01194",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ipsen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 36,
      "start_date": "2024-04-03",
      "completion_date": "2028-03-20",
      "has_results": false,
      "last_update_posted_date": "2026-09-30",
      "last_synced_at": "2026-10-18T14:01:28.183Z",
      "location_count": 5,
      "location_summary": "Los Angeles, California • San Diego, California • New Haven, Connecticut + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Fairfax",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06305247"
    },
    {
      "nct_id": "NCT06246149",
      "title": "Adjuvant Tebentafusp in High Risk Ocular Melanoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Uveal Melanoma"
      ],
      "interventions": [
        {
          "name": "Tebentafusp",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "European Organisation for Research and Treatment of Cancer - EORTC",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 290,
      "start_date": "2024-11-11",
      "completion_date": "2032-11",
      "has_results": false,
      "last_update_posted_date": "2026-06-30",
      "last_synced_at": "2026-10-18T14:01:28.183Z",
      "location_count": 1,
      "location_summary": "Lake Success, New York",
      "locations": [
        {
          "city": "Lake Success",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06246149"
    }
  ]
}