{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+data+collection&page=10", "query": { "intervention": "Observational data collection", "page": 10 }, "page_size": 10 }, "pagination": { "page": 10, "page_size": 10, "total_count": 331, "total_pages": 34, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+data+collection&page=11&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+data+collection&page=9&page_size=10" }, "source": "remote", "last_synced_at": "2026-11-07T14:28:55.561Z", "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": "NCT04894591", "title": "To Assess the Effectiveness and Safety of Zepzelca in Adult Patients With Extensive Stage Small Cell Lung Cancer (SCLC)", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Extensive-stage Small-cell Lung Cancer" ], "interventions": [ { "name": "Zepzelca", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Jazz Pharmaceuticals", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 272, "start_date": "2021-06-28", "completion_date": "2025-06-04", "has_results": false, "last_update_posted_date": "2026-02-27", "last_synced_at": "2026-11-07T14:28:55.561Z", "location_count": 32, "location_summary": "Huntsville, Alabama • Norwich, Connecticut • Brooksville, Florida + 29 more", "locations": [ { "city": "Huntsville", "state": "Alabama" }, { "city": "Norwich", "state": "Connecticut" }, { "city": "Brooksville", "state": "Florida" }, { "city": "Pensacola", "state": "Florida" }, { "city": "Normal", "state": "Illinois" } ], "official_url": "https://clinicaltrials.gov/study/NCT04894591" }, { "nct_id": "NCT04560179", "title": "Inhaled Tobramycin in BPD", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Bronchopulmonary Dysplasia" ], "interventions": [ { "name": "Tobramycin solution for inhalation 78mg dose", "type": "DRUG" }, { "name": "Tobramycin solution for inhalation 150mg dose", "type": "DRUG" }, { "name": "Tobramycin solution for inhalation 216mg dose", "type": "DRUG" }, { "name": "Tobramycin solution for inhalation 300mg dose", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Erik Allen Jensen", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "4 Weeks", "maximum_age": null, "sex": "ALL", "summary": "4 Weeks and older" }, "enrollment_count": 27, "start_date": "2022-03-22", "completion_date": "2024-05-17", "has_results": true, "last_update_posted_date": "2025-01-31", "last_synced_at": "2026-11-07T14:28:55.561Z", "location_count": 1, "location_summary": "Philadelphia, Pennsylvania", "locations": [ { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT04560179" }, { "nct_id": "NCT03121391", "title": "An Algorithmic Approach to Ventilator Withdrawal at the End of Life", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Critical Care", "Palliative Care" ], "interventions": [ { "name": "Ventilator withdrawal algorithm", "type": "PROCEDURE" } ], "intervention_types": [ "PROCEDURE" ], "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": 165, "start_date": "2017-04-20", "completion_date": "2022-07-31", "has_results": false, "last_update_posted_date": "2022-11-29", "last_synced_at": "2026-11-07T14:28:55.561Z", "location_count": 5, "location_summary": "Detroit, Michigan • Royal Oak, Michigan • Southfield, Michigan", "locations": [ { "city": "Detroit", "state": "Michigan" }, { "city": "Detroit", "state": "Michigan" }, { "city": "Detroit", "state": "Michigan" }, { "city": "Royal Oak", "state": "Michigan" }, { "city": "Southfield", "state": "Michigan" } ], "official_url": "https://clinicaltrials.gov/study/NCT03121391" }, { "nct_id": "NCT06962995", "title": "Multi-Cancer Detection Observational Cohort Study", "overall_status": "RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Cancer" ], "interventions": [ { "name": "Blood Sample", "type": "PROCEDURE" }, { "name": "Surveys", "type": "OTHER" } ], "intervention_types": [ "PROCEDURE", "OTHER" ], "sponsor": "Mayo Clinic", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "21 Years", "maximum_age": null, "sex": "ALL", "summary": "21 Years and older" }, "enrollment_count": 1000, "start_date": "2025-05-07", "completion_date": "2029-06-30", "has_results": false, "last_update_posted_date": "2026-10-26", "last_synced_at": "2026-11-07T14:28:55.561Z", "location_count": 3, "location_summary": "Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota", "locations": [ { "city": "Scottsdale", "state": "Arizona" }, { "city": "Jacksonville", "state": "Florida" }, { "city": "Rochester", "state": "Minnesota" } ], "official_url": "https://clinicaltrials.gov/study/NCT06962995" }, { "nct_id": "NCT04028479", "title": "The Registry of Oncology Outcomes Associated With Testing and Treatment", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Adenocarcinoma", "Adenocystic Carcinoma", "Anal Cancer", "Appendix Cancer", "Brain Tumor", "Glioblastoma", "Astrocytoma", "Bile Duct Cancer", "Cholangiocarcinoma", "Bladder Cancer", "Bone Cancer", "Synovial Sarcoma", "Chondrosarcoma", "Liposarcoma", "Sarcoma, Kaposi", "Sarcoma,Soft Tissue", "Sarcoma", "Osteosarcoma", "CNS Cancer", "Brain Stem Neoplasms", "Breast Cancer", "Cervical Cancer", "Colorectal Cancer", "Rectal Cancer", "Colon Cancer", "Esophageal Cancer", "Esophagus Cancer", "Cancer of Colon", "Pancreatic Cancer", "Cancer of Pancreas", "Testis Cancer", "Testicular Cancer", "Ureter Cancer", "Renal Cell Carcinoma", "Kidney Cancer", "Gestational Trophoblastic Tumor", "Head and Neck Neoplasms", "Parotid Tumor", "Larynx Cancer", "Tongue Cancer", "Pharynx Cancer", "Salivary Gland Cancer", "Acute Myeloid Leukemia", "Chronic Myeloid Leukemia", "Acute Lymphoblastic Leukemia", "Multiple Myeloma", "Non Hodgkin Lymphoma", "Carcinoid Tumor", "Lung Cancer", "Neuroendocrine Tumors", "Mesothelioma", "Thyroid Cancer", "Parathyroid Neoplasms", "Adrenal Cancer", "Small Bowel Cancer", "Stomach Cancer", "Liver Cancer", "Hepatic Cancer", "Melanoma", "Skin Cancer", "Unknown Primary Tumors", "Uterine Cancer", "Fallopian Tube Cancer", "Ovarian Cancer", "Prostate Cancer", "Vaginal Cancer", "Penile Cancer", "Vulvar Cancer", "Waldenstrom Macroglobulinemia", "Cancer, Advanced", "Thymus Cancer", "Nasopharyngeal Carcinoma", "Multiple Endocrine Neoplasia", "Pheochromocytoma", "Small Cell Carcinoma", "Pulmonary Carcinoma" ], "interventions": [ { "name": "Biomarker Testing (L)", "type": "DIAGNOSTIC_TEST" }, { "name": "Systemic Treatment (T)", "type": "DRUG" }, { "name": "Patient Reported Outcomes (P)", "type": "OTHER" } ], "intervention_types": [ "DIAGNOSTIC_TEST", "DRUG", "OTHER" ], "sponsor": "Taproot Health", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 167, "start_date": "2021-05-05", "completion_date": "2024-10-31", "has_results": false, "last_update_posted_date": "2024-12-18", "last_synced_at": "2026-11-07T14:28:55.561Z", "location_count": 2, "location_summary": "Idaho Falls, Idaho • Laredo, Texas", "locations": [ { "city": "Idaho Falls", "state": "Idaho" }, { "city": "Laredo", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT04028479" }, { "nct_id": "NCT00103961", "title": "An Observational Study of People Who Have Recently Been Infected With HIV", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "Questionnaire", "type": "BEHAVIORAL" } ], "intervention_types": [ "BEHAVIORAL" ], "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "64 Years", "sex": "ALL", "summary": "18 Years to 64 Years" }, "enrollment_count": 500, "start_date": "2004-01", "completion_date": "2014-12", "has_results": false, "last_update_posted_date": "2018-11-28", "last_synced_at": "2026-11-07T14:28:55.561Z", "location_count": 2, "location_summary": "Boston, Massachusetts", "locations": [ { "city": "Boston", "state": "Massachusetts" }, { "city": "Boston", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT00103961" }, { "nct_id": "NCT00521846", "title": "ExploR™ Modular Radial Head Data Collection", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Elbow Fracture" ], "interventions": [ { "name": "Biomet Explor Modular Radial Head Replacement", "type": "DEVICE" } ], "intervention_types": [ "DEVICE" ], "sponsor": "Vanderbilt University 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": 61, "start_date": "2007-08", "completion_date": "2026-01-16", "has_results": false, "last_update_posted_date": "2026-05-26", "last_synced_at": "2026-11-07T14:28:55.561Z", "location_count": 1, "location_summary": "Nashville, Tennessee", "locations": [ { "city": "Nashville", "state": "Tennessee" } ], "official_url": "https://clinicaltrials.gov/study/NCT00521846" }, { "nct_id": "NCT05477082", "title": "Blood Biomarkers in Pediatric Kidney Transplant Recipients", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Rejection of Kidney Allograft" ], "interventions": [ { "name": "Observational group", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "University of Minnesota", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": "21 Years", "sex": "ALL", "summary": "Up to 21 Years" }, "enrollment_count": 27, "start_date": "2023-08-21", "completion_date": "2027-11-01", "has_results": false, "last_update_posted_date": "2026-11-03", "last_synced_at": "2026-11-07T14:28:55.561Z", "location_count": 1, "location_summary": "Minneapolis, Minnesota", "locations": [ { "city": "Minneapolis", "state": "Minnesota" } ], "official_url": "https://clinicaltrials.gov/study/NCT05477082" }, { "nct_id": "NCT07362225", "title": "MPN PROGRESSion Registry: Observational Study Tracking Symptoms, Treatments, and Disease Progression in People With Myeloproliferative Neoplasms (MPNs)", "overall_status": "RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Polycythemia Vera", "ET (Essential Thrombocythemia)", "Polycythemia Vera (PV)", "Essential Thrombocythemia (ET)", "Primary Myelofibrosis (MF)", "Primary Myelofibrosis (PMF)", "Myelofibrosis", "Myelofibrosis (MF)", "Myelofibrosis, Primary", "Myelofibrosis, Post ET", "Myelofibrosis, Post PV", "Myelofibrosis (PMF)", "Myelofibrosis，MF", "Myelofibrosis; Primary Myelofibrosis; Post-polycythemia Vera Myelofibrosis; Post-essential Thrombocythemia Myelofibrosis", "Myelofibrosis Due to and Following Polycythemia Vera", "Myelofibrosis Transformation in Essential Thrombocythemia", "Myelofibrosis With High Molecular Risk Mutations", "MF", "Secondary Myelofibrosis", "Secondary Myelofibrosis in Myeloproliferative Disease", "Secondary Myelofibrosis (Post-Polycythemia Vera Myelofibrosis, Post-Essential Thrombocythemia Myelofibrosis)", "Post-Polycythemia Vera Myelofibrosis", "Post-polycythemia Vera Myelofibrosis (PPV-MF)", "Post-polycythemia Vera Myelofibrosis (Post-PV MF)", "Post-polycythemia Vera Myelofibrosis(Post-PV MF)", "Post-PV MF", "Post-Essential Thrombocythemia Myelofibrosis", "Post-essential Thrombocythemia Myelofibrosis (PET-MF)", "Post-essential Thrombocythemia Myelofibrosis(Post-ET MF)", "Post-essential Thrombocythemia Myelofibrosis (Post-ET MF)", "Post-ET MF", "Pre-fibrotic Myelofibrosis", "Myeloproliferative Disorder", "Myeloproliferative Disorders", "Myeloproliferative Disorders (MPD)", "Myeloproliferative Neoplasms (MPNs)", "Myeloproliferative Neoplasm(MPN)-Associated Myelofibrosis", "Myeloproliferative Neoplasm With 10% Blasts or Higher", "Myeloproliferative Neoplasms", "MPN", "MPN (Myeloproliferative Neoplasms)", "MPN-associated Myelofibrosis", "Myeloproliferative Neoplasm, Unclassifiable", "Myeloproliferative Neoplasm, Not Otherwise Specified", "Accelerated Phase MPN", "Accelerated Phase Myeloproliferative Neoplasm", "Blast Phase MPN", "Blast Phase Myeloproliferative Neoplasm", "Thrombocythemia Myelofibrosis (PET-MF)", "Thrombocythemia, Essential", "Thrombocythemia, Hemorrhagic", "Agnogenic Myeloid Metaplasia", "Chronic Idiopathic Myelofibrosis", "Idiopathic Myelofibrosis", "MDS/MPN Crossover Syndromes" ], "interventions": [], "intervention_types": [], "sponsor": "MPN Research Foundation", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 5000, "start_date": "2025-09-26", "completion_date": "2035-09-08", "has_results": false, "last_update_posted_date": "2026-01-23", "last_synced_at": "2026-11-07T14:28:55.561Z", "location_count": 2, "location_summary": "Chicago, Illinois • New York, New York", "locations": [ { "city": "Chicago", "state": "Illinois" }, { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT07362225" }, { "nct_id": "NCT02402244", "title": "Project: Every Child for Younger Patients With Cancer", "overall_status": "RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Adrenal Gland Pheochromocytoma", "Carcinoma In Situ", "Central Nervous System Neoplasm", "Childhood Immature Teratoma", "Childhood Kidney Neoplasm", "Childhood Langerhans Cell Histiocytosis", "Childhood Mature Teratoma", "Congenital Mesoblastic Nephroma", "Desmoid Fibromatosis", "Ganglioneuroma", "Lymphoproliferative Disorder", "Malignant Neoplasm", "Malignant Solid Neoplasm", "Melanocytic Neoplasm", "Myeloproliferative Neoplasm", "Neoplasm of Uncertain Malignant Potential", "Neuroendocrine Neoplasm", "Stromal Neoplasm" ], "interventions": [ { "name": "Cytology Specimen Collection Procedure", "type": "OTHER" }, { "name": "Medical Chart Review", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Children's Oncology Group", "sponsor_class": "NETWORK", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": "25 Years", "sex": "ALL", "summary": "Up to 25 Years" }, "enrollment_count": 75000, "start_date": "2015-11-03", "completion_date": "2030-12-31", "has_results": false, "last_update_posted_date": "2026-08-25", "last_synced_at": "2026-11-07T14:28:55.561Z", "location_count": 246, "location_summary": "Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 177 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Mobile", "state": "Alabama" }, { "city": "Anchorage", "state": "Alaska" }, { "city": "Kingman", "state": "Arizona" }, { "city": "Mesa", "state": "Arizona" } ], "official_url": "https://clinicaltrials.gov/study/NCT02402244" } ] }