{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+sample%3A+Sub-study+group", "query": { "intervention": "Blood sample: Sub-study group" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 167, "total_pages": 17, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+sample%3A+Sub-study+group&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-09-10T14:57:32.103Z", "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": "NCT02711826", "title": "Treg Therapy in Subclinical Inflammation in Kidney Transplantation", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "Kidney Transplant", "Adult Living Donor Kidney Transplant Recipients", "Renal Transplant", "Living Kidney Donor" ], "interventions": [ { "name": "Polyclonal Regulatory T Cells", "type": "BIOLOGICAL" }, { "name": "Everolimus", "type": "DRUG" }, { "name": "Tacrolimus", "type": "DRUG" }, { "name": "Mycophenolate mofetil", "type": "DRUG" }, { "name": "Mycophenolic acid", "type": "DRUG" }, { "name": "Acetaminophen", "type": "DRUG" }, { "name": "Diphenhydramine", "type": "DRUG" }, { "name": "Biopsy, Kidney", "type": "PROCEDURE" }, { "name": "Blood Draw", "type": "PROCEDURE" }, { "name": "Leukapheresis", "type": "PROCEDURE" }, { "name": "IS regimen conversion", "type": "PROCEDURE" } ], "intervention_types": [ "BIOLOGICAL", "DRUG", "PROCEDURE" ], "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 32, "start_date": "2016-09-20", "completion_date": "2023-08-04", "has_results": true, "last_update_posted_date": "2025-04-09", "last_synced_at": "2026-09-10T14:57:32.103Z", "location_count": 6, "location_summary": "Birmingham, Alabama • San Francisco, California • Aurora, Colorado + 3 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "San Francisco", "state": "California" }, { "city": "Aurora", "state": "Colorado" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Ann Arbor", "state": "Michigan" } ], "official_url": "https://clinicaltrials.gov/study/NCT02711826" }, { "nct_id": "NCT03407378", "title": "A Study to Investigate a New Treatment in Patients With Parkinson's Disease", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "Parkinson Disease" ], "interventions": [ { "name": "IPT803", "type": "DRUG" }, { "name": "Optional pharmacogenetic assessment", "type": "GENETIC" }, { "name": "Questionnaires", "type": "OTHER" }, { "name": "Optional Blood-Oxygen-level Dependent functionalMRI", "type": "OTHER" }, { "name": "Motor Assessments before taking regular PD treatment", "type": "OTHER" }, { "name": "Motor Assessments on regular PD treatment", "type": "OTHER" } ], "intervention_types": [ "DRUG", "GENETIC", "OTHER" ], "sponsor": "Tools4Patient", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "35 Years", "maximum_age": null, "sex": "ALL", "summary": "35 Years and older" }, "enrollment_count": 110, "start_date": "2018-06-26", "completion_date": "2020-03-31", "has_results": false, "last_update_posted_date": "2020-06-16", "last_synced_at": "2026-09-10T14:57:32.103Z", "location_count": 5, "location_summary": "Aurora, Colorado • Gainesville, Florida • Chicago, Illinois + 2 more", "locations": [ { "city": "Aurora", "state": "Colorado" }, { "city": "Gainesville", "state": "Florida" }, { "city": "Chicago", "state": "Illinois" }, { "city": "West Bloomfield", "state": "Michigan" }, { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT03407378" }, { "nct_id": "NCT03369821", "title": "EXtremely Early-onset Type 1 Diabetes EXtremely Early-onset Type 1 Diabetes (A Musketeers' Memorandum Study)", "overall_status": "RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Type1 Diabetes Mellitus" ], "interventions": [ { "name": "Beta Cell Loss and Immune Function", "type": "DIAGNOSTIC_TEST" }, { "name": "Immune Function with RNAseq", "type": "OTHER" } ], "intervention_types": [ "DIAGNOSTIC_TEST", "OTHER" ], "sponsor": "University of Exeter", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": "70 Years", "sex": "ALL", "summary": "Up to 70 Years" }, "enrollment_count": 300, "start_date": "2017-09-19", "completion_date": "2028-11-30", "has_results": false, "last_update_posted_date": "2025-12-19", "last_synced_at": "2026-09-10T14:57:32.103Z", "location_count": 1, "location_summary": "Seattle, Washington", "locations": [ { "city": "Seattle", "state": "Washington" } ], "official_url": "https://clinicaltrials.gov/study/NCT03369821" }, { "nct_id": "NCT01729494", "title": "Belatacept Early Steroid Withdrawal Trial", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Renal Transplantation" ], "interventions": [ { "name": "Alemtuzumab", "type": "DRUG" }, { "name": "rabbit antithymocyte globulin", "type": "DRUG" }, { "name": "Belatacept", "type": "DRUG" }, { "name": "Tacrolimus", "type": "DRUG" }, { "name": "Mycophenolate mofetil", "type": "DRUG" }, { "name": "early cessation of steroids", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of Cincinnati", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 316, "start_date": "2012-09", "completion_date": "2019-12", "has_results": true, "last_update_posted_date": "2026-07-24", "last_synced_at": "2026-09-10T14:57:32.103Z", "location_count": 8, "location_summary": "San Francisco, California • Denver, Colorado • Tampa, Florida + 4 more", "locations": [ { "city": "San Francisco", "state": "California" }, { "city": "Denver", "state": "Colorado" }, { "city": "Tampa", "state": "Florida" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Minneapolis", "state": "Minnesota" } ], "official_url": "https://clinicaltrials.gov/study/NCT01729494" }, { "nct_id": "NCT03741023", "title": "Disorders of the Acute Phase Response Following Trauma and Invasive Surgery", "overall_status": "ENROLLING_BY_INVITATION", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Acute Phase Response" ], "interventions": [ { "name": "Blood draw (venipuncture or fingerstick)", "type": "PROCEDURE" } ], "intervention_types": [ "PROCEDURE" ], "sponsor": "Vanderbilt University Medical Center", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "2 Months", "maximum_age": null, "sex": "ALL", "summary": "2 Months and older" }, "enrollment_count": 320, "start_date": "2019-12-12", "completion_date": "2027-12-31", "has_results": false, "last_update_posted_date": "2026-03-27", "last_synced_at": "2026-09-10T14:57:32.103Z", "location_count": 1, "location_summary": "Nashville, Tennessee", "locations": [ { "city": "Nashville", "state": "Tennessee" } ], "official_url": "https://clinicaltrials.gov/study/NCT03741023" }, { "nct_id": "NCT01870986", "title": "Study Of PF-06410293 And Adalimumab In Healthy Subjects (REFLECTIONS B538-01)", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Healthy" ], "interventions": [ { "name": "PF-06410293", "type": "BIOLOGICAL" }, { "name": "Humira (adalimumab-EU)", "type": "BIOLOGICAL" }, { "name": "Humira (adalimumab-US)", "type": "BIOLOGICAL" } ], "intervention_types": [ "BIOLOGICAL" ], "sponsor": "Pfizer", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "55 Years", "sex": "ALL", "summary": "18 Years to 55 Years" }, "enrollment_count": 210, "start_date": "2013-05", "completion_date": "2014-02", "has_results": false, "last_update_posted_date": "2014-02-14", "last_synced_at": "2026-09-10T14:57:32.103Z", "location_count": 1, "location_summary": "New Haven, Connecticut", "locations": [ { "city": "New Haven", "state": "Connecticut" } ], "official_url": "https://clinicaltrials.gov/study/NCT01870986" }, { "nct_id": "NCT02990078", "title": "Non-invasive Measurement of Cerebrovascular Reactivity After Traumatic Brain Injury", "overall_status": "TERMINATED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "TBI" ], "interventions": [ { "name": "Sildenafil citrate", "type": "DRUG" }, { "name": "Functional Near Infared Spectroscopy", "type": "DEVICE" }, { "name": "Hypercapnia Challenge", "type": "OTHER" } ], "intervention_types": [ "DRUG", "DEVICE", "OTHER" ], "sponsor": "University of Pennsylvania", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 26, "start_date": "2016-12", "completion_date": "2022-09-30", "has_results": false, "last_update_posted_date": "2022-10-13", "last_synced_at": "2026-09-10T14:57:32.103Z", "location_count": 1, "location_summary": "Philadelphia, Pennsylvania", "locations": [ { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT02990078" }, { "nct_id": "NCT05656261", "title": "APOL1 Genetic Testing in African Americans", "overall_status": "RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Genetic Predisposition", "Chronic Kidney Diseases", "Nephropathy", "APOL1 Associated Kidney Disease", "Disparities" ], "interventions": [ { "name": "Assessment of the frequency of APOL-1 renal risk variant in the black population, and evaluating their attitudes about genetic testing and APOL1 genotype via self-administered surveys", "type": "GENETIC" } ], "intervention_types": [ "GENETIC" ], "sponsor": "St. Louis University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "90 Years", "sex": "ALL", "summary": "18 Years to 90 Years" }, "enrollment_count": 600, "start_date": "2019-01-24", "completion_date": "2027-06-30", "has_results": false, "last_update_posted_date": "2025-03-20", "last_synced_at": "2026-09-10T14:57:32.103Z", "location_count": 1, "location_summary": "St Louis, Missouri", "locations": [ { "city": "St Louis", "state": "Missouri" } ], "official_url": "https://clinicaltrials.gov/study/NCT05656261" }, { "nct_id": "NCT03235271", "title": "Pilot Study of Acute Stroke Using the Brainpulse™", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Stroke, Acute" ], "interventions": [ { "name": "BrainPulse Device", "type": "DEVICE" } ], "intervention_types": [ "DEVICE" ], "sponsor": "Jan Medical, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 252, "start_date": "2017-09-10", "completion_date": "2024-08-28", "has_results": false, "last_update_posted_date": "2025-03-07", "last_synced_at": "2026-09-10T14:57:32.103Z", "location_count": 3, "location_summary": "Arlington Heights, Illinois • Evanston, Illinois • Cincinnati, Ohio", "locations": [ { "city": "Arlington Heights", "state": "Illinois" }, { "city": "Evanston", "state": "Illinois" }, { "city": "Cincinnati", "state": "Ohio" } ], "official_url": "https://clinicaltrials.gov/study/NCT03235271" }, { "nct_id": "NCT07622901", "title": "Fasting InTervention for Endometrial Cancer", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Endometrial Cancer" ], "interventions": [ { "name": "Prolonged Overnight Fasting (POF)", "type": "BEHAVIORAL" }, { "name": "Blood Specimen Collection", "type": "PROCEDURE" }, { "name": "Blood Sugar Monitor", "type": "OTHER" }, { "name": "Hysterectomy", "type": "PROCEDURE" } ], "intervention_types": [ "BEHAVIORAL", "PROCEDURE", "OTHER" ], "sponsor": "University of Miami", "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": 42, "start_date": "2026-02-27", "completion_date": "2028-02-28", "has_results": false, "last_update_posted_date": "2026-07-14", "last_synced_at": "2026-09-10T14:57:32.103Z", "location_count": 1, "location_summary": "Miami, Florida", "locations": [ { "city": "Miami", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT07622901" } ] }