{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Research+Marker&page=2", "query": { "intervention": "Research Marker", "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=Research+Marker&page=1&page_size=10" }, "source": "remote", "last_synced_at": "2026-09-21T07:02:21.701Z", "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": "NCT04390607", "title": "Leukocyte Esterase Sensor Test", "overall_status": "UNKNOWN", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Prosthetic Joint Infection" ], "interventions": [ { "name": "leukocyte esterase electrochemical assay", "type": "DIAGNOSTIC_TEST" } ], "intervention_types": [ "DIAGNOSTIC_TEST" ], "sponsor": "Rothman Institute Orthopaedics", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 230, "start_date": "2020-11-01", "completion_date": "2021-10-31", "has_results": false, "last_update_posted_date": "2020-09-23", "last_synced_at": "2026-09-21T07:02:21.701Z", "location_count": 1, "location_summary": "New York, New York", "locations": [ { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT04390607" }, { "nct_id": "NCT05201833", "title": "TRACK-TBI Longitudinal Biomarker Study", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Traumatic Brain Injury" ], "interventions": [ { "name": "Telephone Outcome Assessment", "type": "BEHAVIORAL" }, { "name": "In-Person Outcome Assessment", "type": "BEHAVIORAL" }, { "name": "3T Magnetic Resonance Imaging (MRI)", "type": "PROCEDURE" }, { "name": "Blood Draw", "type": "PROCEDURE" } ], "intervention_types": [ "BEHAVIORAL", "PROCEDURE" ], "sponsor": "University of Pennsylvania", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 300, "start_date": "2022-03-01", "completion_date": "2027-02-28", "has_results": false, "last_update_posted_date": "2026-08-17", "last_synced_at": "2026-09-21T07:02:21.701Z", "location_count": 11, "location_summary": "San Francisco, California • Charlestown, Massachusetts • Cincinnati, Ohio + 8 more", "locations": [ { "city": "San Francisco", "state": "California" }, { "city": "Charlestown", "state": "Massachusetts" }, { "city": "Cincinnati", "state": "Ohio" }, { "city": "Philadelphia", "state": "Pennsylvania" }, { "city": "Pittsburgh", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT05201833" }, { "nct_id": "NCT02438514", "title": "Biological Biomarkers in MOMS Partnership", "overall_status": "TERMINATED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Psychological Stress" ], "interventions": [ { "name": "Biological Sample Collection", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Yale University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "21 Years", "maximum_age": "70 Years", "sex": "FEMALE", "summary": "21 Years to 70 Years · Female only" }, "enrollment_count": 20, "start_date": "2014-11", "completion_date": "2019-11", "has_results": false, "last_update_posted_date": "2020-03-12", "last_synced_at": "2026-09-21T07:02:21.701Z", "location_count": 1, "location_summary": "New Haven, Connecticut", "locations": [ { "city": "New Haven", "state": "Connecticut" } ], "official_url": "https://clinicaltrials.gov/study/NCT02438514" }, { "nct_id": "NCT01754272", "title": "A Non-Interventional Follow-Up to the VELOUR Study - Translational Research", "overall_status": "UNKNOWN", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Metastatic Colorectal Cancer" ], "interventions": [], "intervention_types": [], "sponsor": "KU Leuven", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 1226, "start_date": "2012-01", "completion_date": "2013-12", "has_results": false, "last_update_posted_date": "2012-12-21", "last_synced_at": "2026-09-21T07:02:21.701Z", "location_count": 1, "location_summary": "Philadelphia, Pennsylvania", "locations": [ { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT01754272" }, { "nct_id": "NCT01820117", "title": "Brain Integrity in Survivors of Hodgkin Lymphoma Treated With Thoracic Radiation", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Hodgkin Lymphoma" ], "interventions": [ { "name": "Neurocognitive Evaluation", "type": "OTHER" }, { "name": "Quantitative Brain Imaging", "type": "OTHER" }, { "name": "Neurologic Evaluation", "type": "OTHER" }, { "name": "Health Questionnaire", "type": "OTHER" }, { "name": "Vascular Testing", "type": "OTHER" }, { "name": "Cardiopulmonary Exercise Testing", "type": "OTHER" }, { "name": "Echocardiography", "type": "OTHER" }, { "name": "Pulmonary Function Testing", "type": "OTHER" }, { "name": "Serum Biomarkers", "type": "PROCEDURE" }, { "name": "Ophthalmology Examination", "type": "OTHER" } ], "intervention_types": [ "OTHER", "PROCEDURE" ], "sponsor": "St. Jude Children's Research Hospital", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 416, "start_date": "2013-04-26", "completion_date": "2018-02-20", "has_results": false, "last_update_posted_date": "2018-03-01", "last_synced_at": "2026-09-21T07:02:21.701Z", "location_count": 1, "location_summary": "Memphis, Tennessee", "locations": [ { "city": "Memphis", "state": "Tennessee" } ], "official_url": "https://clinicaltrials.gov/study/NCT01820117" }, { "nct_id": "NCT01930123", "title": "Impact of Fructose on Metabolism, Energy Homeostasis and Magnetic Resonance Biomarkers in Nonalcoholic Fatty Liver Disease", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Nonalcoholic Fatty Liver Disease (NAFLD)" ], "interventions": [ { "name": "intravenous fructose challenge", "type": "DRUG" }, { "name": "Blood Draw", "type": "OTHER" } ], "intervention_types": [ "DRUG", "OTHER" ], "sponsor": "Manal F Abdelmalek", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "75 Years", "sex": "ALL", "summary": "18 Years to 75 Years" }, "enrollment_count": 118, "start_date": "2013-10", "completion_date": "2020-01", "has_results": true, "last_update_posted_date": "2022-08-31", "last_synced_at": "2026-09-21T07:02:21.701Z", "location_count": 1, "location_summary": "Durham, North Carolina", "locations": [ { "city": "Durham", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT01930123" }, { "nct_id": "NCT03180021", "title": "Dynamic Imaging of Variation in Lupus Nephritis", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Lupus Nephritis" ], "interventions": [ { "name": "MRI", "type": "PROCEDURE" } ], "intervention_types": [ "PROCEDURE" ], "sponsor": "RILITE Foundation", "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": 21, "start_date": "2018-03-13", "completion_date": "2020-10-02", "has_results": false, "last_update_posted_date": "2021-10-04", "last_synced_at": "2026-09-21T07:02:21.701Z", "location_count": 6, "location_summary": "Aurora, Colorado • New York, New York • Columbus, Ohio + 2 more", "locations": [ { "city": "Aurora", "state": "Colorado" }, { "city": "New York", "state": "New York" }, { "city": "New York", "state": "New York" }, { "city": "Columbus", "state": "Ohio" }, { "city": "Charleston", "state": "South Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT03180021" }, { "nct_id": "NCT00919269", "title": "Collecting and Storing Tissue, Blood, and Bone Marrow Samples From Patients With Rhabdomyosarcoma or Other Soft Tissue Sarcoma", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Adult Rhabdomyosarcoma", "Childhood Desmoplastic Small Round Cell Tumor", "Chordoma", "Desmoid-Type Fibromatosis", "Metastatic Childhood Soft Tissue Sarcoma", "Non-Metastatic Childhood Soft Tissue Sarcoma", "Previously Treated Childhood Rhabdomyosarcoma", "Recurrent Adult Soft Tissue Sarcoma", "Recurrent Childhood Rhabdomyosarcoma", "Recurrent Childhood Soft Tissue Sarcoma", "Rhabdomyosarcoma", "Stage I Adult Soft Tissue Sarcoma AJCC v7", "Stage II Adult Soft Tissue Sarcoma AJCC v7", "Stage III Adult Soft Tissue Sarcoma AJCC v7", "Stage IV Adult Soft Tissue Sarcoma AJCC v7", "Untreated Childhood Rhabdomyosarcoma" ], "interventions": [ { "name": "Cytology Specimen Collection Procedure", "type": "OTHER" }, { "name": "Laboratory Biomarker Analysis", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Children's Oncology Group", "sponsor_class": "NETWORK", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": "50 Years", "sex": "ALL", "summary": "Up to 50 Years" }, "enrollment_count": 150, "start_date": "1999-03-15", "completion_date": "2023-09-30", "has_results": false, "last_update_posted_date": "2023-10-03", "last_synced_at": "2026-09-21T07:02:21.701Z", "location_count": 214, "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 149 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Little Rock", "state": "Arkansas" } ], "official_url": "https://clinicaltrials.gov/study/NCT00919269" }, { "nct_id": "NCT07392723", "title": "ALA-enriched Nutrition for Prevention of Cognitive Decline in APOE4 Older Adults", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Cognitive Dysfunction", "Alzheimer Disease", "Blood-Brain Barrier", "Apolipoprotein E, Deficiency or Defect of", "Brain Aging", "Fatty Acids, Omega-3" ], "interventions": [ { "name": "Alpha-Linolenic Acid (2.6 g/day)", "type": "DRUG" }, { "name": "Placebo Control Group", "type": "DIETARY_SUPPLEMENT" } ], "intervention_types": [ "DRUG", "DIETARY_SUPPLEMENT" ], "sponsor": "Michal Schnaider Beeri, Ph.D.", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "60 Years", "maximum_age": null, "sex": "ALL", "summary": "60 Years and older" }, "enrollment_count": 20, "start_date": "2025-01-12", "completion_date": "2027-10", "has_results": false, "last_update_posted_date": "2026-02-06", "last_synced_at": "2026-09-21T07:02:21.701Z", "location_count": 1, "location_summary": "New Brunswick, New Jersey", "locations": [ { "city": "New Brunswick", "state": "New Jersey" } ], "official_url": "https://clinicaltrials.gov/study/NCT07392723" }, { "nct_id": "NCT02089555", "title": "African American Alzheimer's Progression Markers - CSF and Neuro-Imaging", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Mild Cognitive Impairment", "Alzheimer's Disease" ], "interventions": [ { "name": "Lumbar puncture", "type": "PROCEDURE" }, { "name": "Blood draw", "type": "PROCEDURE" }, { "name": "Magnetic Resonance Imaging (MRI)", "type": "PROCEDURE" } ], "intervention_types": [ "PROCEDURE" ], "sponsor": "Emory University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "60 Years", "maximum_age": "85 Years", "sex": "ALL", "summary": "60 Years to 85 Years" }, "enrollment_count": 135, "start_date": "2013-09", "completion_date": "2016-06", "has_results": false, "last_update_posted_date": "2016-06-23", "last_synced_at": "2026-09-21T07:02:21.701Z", "location_count": 1, "location_summary": "Atlanta, Georgia", "locations": [ { "city": "Atlanta", "state": "Georgia" } ], "official_url": "https://clinicaltrials.gov/study/NCT02089555" } ] }