{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=sample+collection&page=35", "query": { "intervention": "sample collection", "page": 35 }, "page_size": 10 }, "pagination": { "page": 35, "page_size": 10, "total_count": 3665, "total_pages": 367, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=sample+collection&page=36&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=sample+collection&page=34&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-26T01:52:15.676Z", "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": "NCT04148560", "title": "Free-living Validation of the RFPM in Adolescents", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Dietary Assessment", "Energy Intake", "Food Intake", "Food Photography" ], "interventions": [ { "name": "Tests of the validity of the RFPM and SmartIntake app.", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Pennington Biomedical Research Center", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "12 Years", "maximum_age": "18 Years", "sex": "ALL", "summary": "12 Years to 18 Years" }, "enrollment_count": 29, "start_date": "2020-10-01", "completion_date": "2025-12-31", "has_results": false, "last_update_posted_date": "2026-05-05", "last_synced_at": "2026-10-26T01:52:15.676Z", "location_count": 1, "location_summary": "Baton Rouge, Louisiana", "locations": [ { "city": "Baton Rouge", "state": "Louisiana" } ], "official_url": "https://clinicaltrials.gov/study/NCT04148560" }, { "nct_id": "NCT04403880", "title": "Characterizing SARS-CoV-2-specific Immunity in Individuals Who Have Recovered From COVID-19", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "SARS-CoV-2", "COVID-19" ], "interventions": [ { "name": "Sample collection", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "HIV Vaccine Trials Network", "sponsor_class": "NETWORK", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 760, "start_date": "2020-05-13", "completion_date": "2022-04-21", "has_results": true, "last_update_posted_date": "2026-01-12", "last_synced_at": "2026-10-26T01:52:15.676Z", "location_count": 21, "location_summary": "Birmingham, Alabama • Los Angeles, California • San Francisco, California + 15 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Los Angeles", "state": "California" }, { "city": "San Francisco", "state": "California" }, { "city": "Washington D.C.", "state": "District of Columbia" }, { "city": "Atlanta", "state": "Georgia" } ], "official_url": "https://clinicaltrials.gov/study/NCT04403880" }, { "nct_id": "NCT02958462", "title": "Pre-myeloid Cancer and Bone Marrow Failure Clinic Study", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Myeloid Malignancy", "Inherited Bone Marrow Failure Syndrome", "Clonal Expansion", "Cytopenia", "Bone Marrow Failure Syndrome", "Clonal Cytopenia of Undetermined Significance", "Clonal Hematopoiesis of Indeterminate Potential", "Hematologic Neoplasms", "Hematopoietic and Lymphatic System Neoplasm", "Hereditary Neoplastic Syndrome", "Idiopathic Cytopenia of Undetermined Significance", "Idiopathic Dysplasia of Uncertain Significance", "Low Risk Myelodysplastic Syndrome" ], "interventions": [ { "name": "Biospecimen Collection", "type": "PROCEDURE" }, { "name": "Bone Marrow Biopsy", "type": "PROCEDURE" }, { "name": "Punch Biopsy", "type": "PROCEDURE" }, { "name": "Buccal Swab", "type": "PROCEDURE" }, { "name": "Clinical Evaluation", "type": "OTHER" }, { "name": "Genetic Counseling", "type": "OTHER" }, { "name": "Quality-of-Life Assessment", "type": "OTHER" }, { "name": "Electronic Health Record Review", "type": "OTHER" } ], "intervention_types": [ "PROCEDURE", "OTHER" ], "sponsor": "Mayo Clinic", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 2000, "start_date": "2017-01-16", "completion_date": "2035-09-15", "has_results": false, "last_update_posted_date": "2026-02-23", "last_synced_at": "2026-10-26T01:52:15.676Z", "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/NCT02958462" }, { "nct_id": "NCT02398708", "title": "Comparison of Gut Microbiota, Inflammation and Symptoms Following Allogeneic HSCT", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Graft vs Host Disease", "Graft Versus Host Disease", "Hematopoietic Stem Cell Transplantation", "Peripheral Blood Stem Cell Transplantation" ], "interventions": [ { "name": "Questionnaires", "type": "OTHER" }, { "name": "Blood Sample", "type": "OTHER" }, { "name": "Stool Sample", "type": "OTHER" }, { "name": "Clinical data", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "University of Florida", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 38, "start_date": "2015-05", "completion_date": "2016-04", "has_results": false, "last_update_posted_date": "2019-01-25", "last_synced_at": "2026-10-26T01:52:15.676Z", "location_count": 1, "location_summary": "Gainesville, Florida", "locations": [ { "city": "Gainesville", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT02398708" }, { "nct_id": "NCT03010150", "title": "Blood Tests and Questionnaires in Studying Adherence to Preventative Swallowing Exercises in Participants With Metastatic Head and Neck Cancer", "overall_status": "RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Carcinoma of Unknown Primary", "Clinical Stage I HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8", "Clinical Stage II HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8", "Clinical Stage III HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8", "Metastatic Head and Neck Carcinoma", "Metastatic Malignant Neoplasm in the Uterine Cervix", "Pathologic Stage I HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8", "Pathologic Stage II HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8", "Pathologic Stage III HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8", "Stage I Hypopharyngeal Carcinoma AJCC v8", "Stage I Nasopharyngeal Carcinoma AJCC v8", "Stage II Hypopharyngeal Carcinoma AJCC v8", "Stage II Laryngeal Cancer AJCC v8", "Stage II Nasopharyngeal Carcinoma AJCC v8", "Stage II Oropharyngeal (p16-Negative) Carcinoma AJCC v8", "Stage III Hypopharyngeal Carcinoma AJCC v8", "Stage III Laryngeal Cancer AJCC v8", "Stage III Nasopharyngeal Carcinoma AJCC v8", "Stage III Oropharyngeal (p16-Negative) Carcinoma AJCC v8", "Stage IV Hypopharyngeal Carcinoma AJCC v8", "Stage IV Laryngeal Cancer AJCC v8", "Stage IV Nasopharyngeal Carcinoma AJCC v8", "Stage IV Oropharyngeal (p16-Negative) Carcinoma AJCC v8", "Stage IVA Hypopharyngeal Carcinoma AJCC v8", "Stage IVA Laryngeal Cancer AJCC v8", "Stage IVA Nasopharyngeal Carcinoma AJCC v8", "Stage IVA Oropharyngeal (p16-Negative) Carcinoma AJCC v8", "Stage IVB Hypopharyngeal Carcinoma AJCC v8", "Stage IVB Laryngeal Cancer AJCC v8", "Stage IVB Nasopharyngeal Carcinoma AJCC v8", "Stage IVB Oropharyngeal (p16-Negative) Carcinoma AJCC v8" ], "interventions": [ { "name": "Biospecimen Collection", "type": "PROCEDURE" }, { "name": "Questionnaire Administration", "type": "OTHER" } ], "intervention_types": [ "PROCEDURE", "OTHER" ], "sponsor": "M.D. Anderson Cancer Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 471, "start_date": "2016-12-29", "completion_date": "2028-12-31", "has_results": false, "last_update_posted_date": "2026-10-06", "last_synced_at": "2026-10-26T01:52:15.676Z", "location_count": 1, "location_summary": "Houston, Texas", "locations": [ { "city": "Houston", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT03010150" }, { "nct_id": "NCT06323460", "title": "Adaptive De-intensified Radiotherapy Using Circulating Tumor DNA in HPV- Associated Oropharyngeal Cancer", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Clinical Stage I HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8", "Clinical Stage II HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8", "Oropharyngeal Squamous Cell Carcinoma" ], "interventions": [ { "name": "Biospecimen Collection", "type": "PROCEDURE" }, { "name": "Carboplatin", "type": "DRUG" }, { "name": "Cisplatin", "type": "DRUG" }, { "name": "Computed Tomography", "type": "PROCEDURE" }, { "name": "External Beam Radiation Therapy", "type": "RADIATION" }, { "name": "Paclitaxel", "type": "DRUG" }, { "name": "Positron Emission Tomography", "type": "PROCEDURE" }, { "name": "Questionnaire Administration", "type": "OTHER" } ], "intervention_types": [ "PROCEDURE", "DRUG", "RADIATION", "OTHER" ], "sponsor": "Ohio State University Comprehensive Cancer Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 45, "start_date": "2024-03-21", "completion_date": "2026-12-31", "has_results": false, "last_update_posted_date": "2026-03-24", "last_synced_at": "2026-10-26T01:52:15.676Z", "location_count": 1, "location_summary": "Columbus, Ohio", "locations": [ { "city": "Columbus", "state": "Ohio" } ], "official_url": "https://clinicaltrials.gov/study/NCT06323460" }, { "nct_id": "NCT03706248", "title": "Paired Analysis of Sensitivity for Colorectal Cancer Using COLVERA : PASCAL", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Colorectal Cancer" ], "interventions": [ { "name": "Blood Draw", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Clinical Genomics Pathology", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 65, "start_date": "2018-07-28", "completion_date": "2019-07-15", "has_results": false, "last_update_posted_date": "2020-02-13", "last_synced_at": "2026-10-26T01:52:15.676Z", "location_count": 6, "location_summary": "Redondo Beach, California • Tampa, Florida • Chicago, Illinois + 3 more", "locations": [ { "city": "Redondo Beach", "state": "California" }, { "city": "Tampa", "state": "Florida" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Indianapolis", "state": "Indiana" }, { "city": "Metairie", "state": "Louisiana" } ], "official_url": "https://clinicaltrials.gov/study/NCT03706248" }, { "nct_id": "NCT03491176", "title": "Magnetic Resonance (MR) Imaging & Blood Biomarkers for Head and Neck Cancer", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Cutaneous Squamous Cell Carcinoma of the Head and Neck", "Healthy Subject", "Head and Neck Cancer" ], "interventions": [ { "name": "Biospecimen Collection", "type": "PROCEDURE" }, { "name": "Magnetic Resonance Imaging", "type": "PROCEDURE" }, { "name": "Quality-of-Life Assessment", "type": "OTHER" }, { "name": "Questionnaire Administration", "type": "OTHER" } ], "intervention_types": [ "PROCEDURE", "OTHER" ], "sponsor": "M.D. Anderson Cancer Center", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 100, "start_date": "2017-05-18", "completion_date": "2027-10-31", "has_results": false, "last_update_posted_date": "2026-05-20", "last_synced_at": "2026-10-26T01:52:15.676Z", "location_count": 1, "location_summary": "Houston, Texas", "locations": [ { "city": "Houston", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT03491176" }, { "nct_id": "NCT06600659", "title": "A Study to Determine Number of Patients Who Develop High Ammonia Levels After Receiving Recombinant Erwinia Asparaginase", "overall_status": "RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Hematopoietic and Lymphatic System Neoplasm", "Acute Lymphobkastic Leukemia" ], "interventions": [ { "name": "Non-Interventional Study", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Mayo Clinic", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "1 Year", "maximum_age": null, "sex": "ALL", "summary": "1 Year and older" }, "enrollment_count": 10, "start_date": "2023-11-02", "completion_date": "2026-12-01", "has_results": false, "last_update_posted_date": "2026-02-06", "last_synced_at": "2026-10-26T01:52:15.676Z", "location_count": 1, "location_summary": "Rochester, Minnesota", "locations": [ { "city": "Rochester", "state": "Minnesota" } ], "official_url": "https://clinicaltrials.gov/study/NCT06600659" }, { "nct_id": "NCT00941759", "title": "Analysis of Surgery in Patients Presenting With Stage IV Breast Cancer", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Breast Cancer" ], "interventions": [], "intervention_types": [], "sponsor": "Memorial Sloan Kettering Cancer Center", "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": 100, "start_date": "2009-07", "completion_date": "2023-07-10", "has_results": false, "last_update_posted_date": "2025-07-16", "last_synced_at": "2026-10-26T01:52:15.676Z", "location_count": 20, "location_summary": "Birmingham, Alabama • San Francisco, California • Washington D.C., District of Columbia + 16 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "San Francisco", "state": "California" }, { "city": "Washington D.C.", "state": "District of Columbia" }, { "city": "Washington D.C.", "state": "District of Columbia" }, { "city": "Chicago", "state": "Illinois" } ], "official_url": "https://clinicaltrials.gov/study/NCT00941759" } ] }