{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Cohort+Observational+study&page=2", "query": { "intervention": "Cohort Observational study", "page": 2 }, "page_size": 10 }, "pagination": { "page": 2, "page_size": 10, "total_count": 10, "total_pages": 1, "next_page_url": null, "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Cohort+Observational+study&page=1&page_size=10" }, "source": "remote", "last_synced_at": "2026-09-23T02:54:23.575Z", "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": "NCT02775656", "title": "UCB Cimzia Pregnancy Follow-up Study", "overall_status": "TERMINATED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Rheumatoid Arthritis (RA)", "Crohn's Disease (CD)", "Psoriatic Arthritis (PsA)", "Axial Spondyloarthritis and Ankylosing Spondylitis" ], "interventions": [], "intervention_types": [], "sponsor": "UCB BIOSCIENCES, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "64 Years", "sex": "FEMALE", "summary": "18 Years to 64 Years · Female only" }, "enrollment_count": 1, "start_date": "2016-11", "completion_date": "2017-12", "has_results": false, "last_update_posted_date": "2021-04-22", "last_synced_at": "2026-09-23T02:54:23.575Z", "location_count": 1, "location_summary": "Wilmington, North Carolina", "locations": [ { "city": "Wilmington", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT02775656" }, { "nct_id": "NCT04648306", "title": "Restore EF Observational Study", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Coronary Artery Disease", "Unstable Angina", "Angina, Stable", "NSTEMI - Non-ST Segment Elevation MI" ], "interventions": [ { "name": "Prophylactic Impella support for a non-emergent PCI", "type": "DEVICE" } ], "intervention_types": [ "DEVICE" ], "sponsor": "Abiomed Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 406, "start_date": "2019-09-01", "completion_date": "2021-09-30", "has_results": false, "last_update_posted_date": "2021-12-14", "last_synced_at": "2026-09-23T02:54:23.575Z", "location_count": 21, "location_summary": "Phoenix, Arizona • Tucson, Arizona • Fayetteville, Arkansas + 18 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Fayetteville", "state": "Arkansas" }, { "city": "North Little Rock", "state": "Arkansas" }, { "city": "Springdale", "state": "Arkansas" } ], "official_url": "https://clinicaltrials.gov/study/NCT04648306" }, { "nct_id": "NCT07312227", "title": "A Prospective Longitudinal Observational Cohort Study of Pregnant Women Residing at High Altitude in Bolivia", "overall_status": "RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Hypertensive Disorder of Pregnancy", "Pulmonary Arterial Hypertension", "Intrauterine Growth Restriction" ], "interventions": [], "intervention_types": [], "sponsor": "Massachusetts General Hospital", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "45 Years", "sex": "FEMALE", "summary": "18 Years to 45 Years · Female only" }, "enrollment_count": 27, "start_date": "2026-02-11", "completion_date": "2027-02", "has_results": false, "last_update_posted_date": "2026-05-26", "last_synced_at": "2026-09-23T02:54:23.575Z", "location_count": 1, "location_summary": "Boston, Massachusetts", "locations": [ { "city": "Boston", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT07312227" }, { "nct_id": "NCT05170425", "title": "LAMBDA 002 (Lung Registry) Study", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Lung Transplant Rejection" ], "interventions": [ { "name": "Prospera", "type": "DEVICE" } ], "intervention_types": [ "DEVICE" ], "sponsor": "Natera, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 154, "start_date": "2022-11-04", "completion_date": "2027-05", "has_results": false, "last_update_posted_date": "2025-05-22", "last_synced_at": "2026-09-23T02:54:23.575Z", "location_count": 11, "location_summary": "California City, California • Chicago, Illinois • Baltimore, Maryland + 7 more", "locations": [ { "city": "California City", "state": "California" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Baltimore", "state": "Maryland" }, { "city": "Grand Rapids", "state": "Michigan" }, { "city": "St Louis", "state": "Missouri" } ], "official_url": "https://clinicaltrials.gov/study/NCT05170425" }, { "nct_id": "NCT02485808", "title": "Symptoms of Lower Urinary Tract Dysfunction Phenotyping Study", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Lower Urinary Tract Symptoms" ], "interventions": [ { "name": "None-observational", "type": "OTHER" }, { "name": "Magnetic Resonance Imaging (MRI)", "type": "PROCEDURE" }, { "name": "Multimodal Automated Sensory Testing System", "type": "OTHER" }, { "name": "Auditory Sensitivity Test", "type": "OTHER" } ], "intervention_types": [ "OTHER", "PROCEDURE" ], "sponsor": "Arbor Research Collaborative for Health", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 1879, "start_date": "2015-04", "completion_date": "2018-05", "has_results": false, "last_update_posted_date": "2019-01-15", "last_synced_at": "2026-09-23T02:54:23.575Z", "location_count": 6, "location_summary": "Chicago, Illinois • Iowa City, Iowa • Ann Arbor, Michigan + 3 more", "locations": [ { "city": "Chicago", "state": "Illinois" }, { "city": "Iowa City", "state": "Iowa" }, { "city": "Ann Arbor", "state": "Michigan" }, { "city": "St Louis", "state": "Missouri" }, { "city": "Durham", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT02485808" }, { "nct_id": "NCT02838108", "title": "The Relationship Between GOLD Risk Group and Clinical Outcomes in a Community-based COPD Cohort", "overall_status": "TERMINATED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Chronic Obstructive Pulmonary Disease (COPD)", "Emphysema", "Chronic Bronchitis" ], "interventions": [], "intervention_types": [], "sponsor": "Duke University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "40 Years", "maximum_age": null, "sex": "ALL", "summary": "40 Years and older" }, "enrollment_count": 452, "start_date": "2016-10", "completion_date": "2018-04-19", "has_results": false, "last_update_posted_date": "2019-10-29", "last_synced_at": "2026-09-23T02:54:23.575Z", "location_count": 1, "location_summary": "Kannapolis, North Carolina", "locations": [ { "city": "Kannapolis", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT02838108" }, { "nct_id": "NCT06113315", "title": "A Study Involving Collection of Samples and Data From Sarcoma Patients Receiving Immunotherapy", "overall_status": "ENROLLING_BY_INVITATION", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Sarcoma" ], "interventions": [], "intervention_types": [], "sponsor": "Memorial Sloan Kettering Cancer Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": null, "sex": "ALL", "summary": "Not listed" }, "enrollment_count": 250, "start_date": "2023-10-27", "completion_date": "2028-10", "has_results": false, "last_update_posted_date": "2026-08-04", "last_synced_at": "2026-09-23T02:54:23.575Z", "location_count": 7, "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more", "locations": [ { "city": "Basking Ridge", "state": "New Jersey" }, { "city": "Middletown", "state": "New Jersey" }, { "city": "Montvale", "state": "New Jersey" }, { "city": "Commack", "state": "New York" }, { "city": "East White Plains", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT06113315" }, { "nct_id": "NCT07817550", "title": "Multimodal Digital Biomarker Prediction of Acute Clinical Deterioration", "overall_status": "ENROLLING_BY_INVITATION", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Acute Disease", "Disease Progression", "Critical Illness", "Biomarkers", "Aging", "Digital Health", "Wearable Electronic Devices", "Remote Patient Monitoring" ], "interventions": [ { "name": "Multimodal Digital Biomarker Monitoring", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Truway Health, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "90 Years", "sex": "ALL", "summary": "18 Years to 90 Years" }, "enrollment_count": 10000, "start_date": "2026-09-01", "completion_date": "2039-03-31", "has_results": false, "last_update_posted_date": "2026-09-14", "last_synced_at": "2026-09-23T02:54:23.575Z", "location_count": 1, "location_summary": "New York, New York", "locations": [ { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT07817550" }, { "nct_id": "NCT03581006", "title": "Food Intake REstriction for Health OUtcome Support and Education (FIREHOUSE) Trial", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Lung Injury", "Particulate Matter Inhalation Injury" ], "interventions": [ { "name": "Low-Calorie Mediterranean Diet", "type": "DIETARY_SUPPLEMENT" }, { "name": "Technology based monitoring and behavioral participation", "type": "COMBINATION_PRODUCT" }, { "name": "Usual care group", "type": "OTHER" } ], "intervention_types": [ "DIETARY_SUPPLEMENT", "COMBINATION_PRODUCT", "OTHER" ], "sponsor": "NYU Langone Health", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "21 Years", "maximum_age": "90 Years", "sex": "MALE", "summary": "21 Years to 90 Years · Male only" }, "enrollment_count": 100, "start_date": "2018-11-12", "completion_date": "2021-03-04", "has_results": false, "last_update_posted_date": "2021-12-03", "last_synced_at": "2026-09-23T02:54:23.575Z", "location_count": 1, "location_summary": "New York, New York", "locations": [ { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT03581006" }, { "nct_id": "NCT00005398", "title": "University of North Carolina Alumni Heart Study", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Cardiovascular Diseases", "Heart Diseases", "Coronary Disease", "Depression" ], "interventions": [ { "name": "There is no intervention", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Duke University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": null, "sex": "ALL", "summary": "Not listed" }, "enrollment_count": 6340, "start_date": "1996-05", "completion_date": "2030-05", "has_results": false, "last_update_posted_date": "2026-07-08", "last_synced_at": "2026-09-23T02:54:23.575Z", "location_count": 1, "location_summary": "Durham, North Carolina", "locations": [ { "city": "Durham", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT00005398" } ] }