{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+data+collection", "query": { "intervention": "Observational data collection" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 328, "total_pages": 33, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+data+collection&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-09-12T01:51:36.946Z", "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": "NCT02877849", "title": "Brain Functional Connectivity in Alcohol Use Disorder", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Alcohol Use Disorder" ], "interventions": [ { "name": "MRI: Brain Imaging data collection", "type": "DEVICE" } ], "intervention_types": [ "DEVICE" ], "sponsor": "University of Minnesota", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "60 Years", "sex": "ALL", "summary": "18 Years to 60 Years" }, "enrollment_count": 82, "start_date": "2017-02-09", "completion_date": "2019-10-31", "has_results": false, "last_update_posted_date": "2019-11-06", "last_synced_at": "2026-09-12T01:51:36.946Z", "location_count": 1, "location_summary": "Minneapolis, Minnesota", "locations": [ { "city": "Minneapolis", "state": "Minnesota" } ], "official_url": "https://clinicaltrials.gov/study/NCT02877849" }, { "nct_id": "NCT06535802", "title": "iCCaRE Consortium Pilot Project 1: Feasibility of a Point of Prostate Cancer Diagnosis Intervention for Newly Diagnosed Black Men", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Prostate Carcinoma" ], "interventions": [ { "name": "Focus group", "type": "OTHER" }, { "name": "Clinician Interviews", "type": "OTHER" }, { "name": "Intervention testing", "type": "OTHER" }, { "name": "Survey", "type": "OTHER" }, { "name": "Follow-up Interview", "type": "OTHER" }, { "name": "Virtual Health Intervention", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Mayo Clinic", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": null, "maximum_age": "80 Years", "sex": "ALL", "summary": "Up to 80 Years" }, "enrollment_count": 38, "start_date": "2023-11-20", "completion_date": "2026-06-23", "has_results": false, "last_update_posted_date": "2026-08-17", "last_synced_at": "2026-09-12T01:51:36.946Z", "location_count": 1, "location_summary": "Jacksonville, Florida", "locations": [ { "city": "Jacksonville", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT06535802" }, { "nct_id": "NCT07775872", "title": "Prospective Natural History Study of POLG Disease", "overall_status": "NOT_YET_RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "PolG, Primary Mitochondrial Myopathy" ], "interventions": [], "intervention_types": [], "sponsor": "The POLG Foundation", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": "75 Years", "sex": "ALL", "summary": "Up to 75 Years" }, "enrollment_count": 300, "start_date": "2026-08-01", "completion_date": "2031-06-17", "has_results": false, "last_update_posted_date": "2026-08-20", "last_synced_at": "2026-09-12T01:51:36.946Z", "location_count": 6, "location_summary": "San Diego, California • Aurora, Colorado • New York, New York + 3 more", "locations": [ { "city": "San Diego", "state": "California" }, { "city": "Aurora", "state": "Colorado" }, { "city": "New York", "state": "New York" }, { "city": "Akron", "state": "Ohio" }, { "city": "Dallas", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT07775872" }, { "nct_id": "NCT07579182", "title": "Hormones, Outcomes, and Pain Pathways in Exercise Study", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Breast Pain", "Mastalgia", "Back Pain", "Back Pain, Low", "Neck Pain", "Chest Pain", "Activity, Motor", "Healthy Aging", "Weight, Body", "Inflammation", "Gonadal Steroid Hormones", "Neuronal Plasticity", "Neuromuscular Manifestations" ], "interventions": [ { "name": "Interventional Sports bra", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "University of Houston", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "60 Years", "sex": "FEMALE", "summary": "18 Years to 60 Years · Female only" }, "enrollment_count": 140, "start_date": "2026-05-17", "completion_date": "2029-09", "has_results": false, "last_update_posted_date": "2026-06-02", "last_synced_at": "2026-09-12T01:51:36.946Z", "location_count": 1, "location_summary": "Houston, Texas", "locations": [ { "city": "Houston", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT07579182" }, { "nct_id": "NCT00002540", "title": "Screening for Prostate Cancer in Older Patients (PLCO Screening Trial)", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Prostate Carcinoma" ], "interventions": [ { "name": "Laboratory Biomarker Analysis", "type": "OTHER" }, { "name": "Medical Examination Assessment", "type": "PROCEDURE" }, { "name": "Screening Questionnaire Administration", "type": "OTHER" } ], "intervention_types": [ "OTHER", "PROCEDURE" ], "sponsor": "National Cancer Institute (NCI)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "55 Years", "maximum_age": "74 Years", "sex": "MALE", "summary": "55 Years to 74 Years · Male only" }, "enrollment_count": 76685, "start_date": "1993-11-16", "completion_date": "2027-06-30", "has_results": true, "last_update_posted_date": "2026-07-24", "last_synced_at": "2026-09-12T01:51:36.946Z", "location_count": 1, "location_summary": "Bethesda, Maryland", "locations": [ { "city": "Bethesda", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT00002540" }, { "nct_id": "NCT05868226", "title": "PRE-ISPY Phase I/II Oncology Platform Program", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "HER2-positive Breast Cancer", "Metastatic Cancer", "Metastatic Breast Cancer", "Metastatic", "HER2-positive Metastatic Breast Cancer", "HER2 Mutation-Related Tumors", "HER-2 Protein Overexpression", "HER2-negative Breast Cancer", "Triple Negative Breast Cancer", "HR Positive", "Hormone Receptor-positive Breast Cancer", "Estrogen Receptor Positive Tumor", "Progesterone Receptor-positive Breast Cancer", "Hormone Receptor Negative Breast Carcinoma", "Solid Tumor", "Solid Tumor, Adult", "Solid Carcinoma", "HER2 Low Breast Cancer", "HER2 Low Breast Carcinoma", "ER Positive Breast Cancer", "PR-positive Breast Cancer", "Minimal Residual Disease", "Colo-rectal Cancer", "Colon Cancer", "Rectal Cancer", "ctDNA Monitoring", "Colorectal Neoplasms", "Colonic Neoplasms", "Rectal Neoplasms", "Neoplasm, Residual", "Adenocarcinoma of Colon", "Adenocarcinoma" ], "interventions": [ { "name": "ALX148", "type": "DRUG" }, { "name": "Fam-Trastuzumab Deruxtecan-Nxki", "type": "DRUG" }, { "name": "Zanidatamab", "type": "DRUG" }, { "name": "Tucatinib", "type": "DRUG" }, { "name": "TTX-MC138", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "QuantumLeap Healthcare Collaborative", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 280, "start_date": "2023-02-15", "completion_date": "2031-12-30", "has_results": false, "last_update_posted_date": "2026-09-02", "last_synced_at": "2026-09-12T01:51:36.946Z", "location_count": 10, "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Aurora, Colorado + 7 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Aurora", "state": "Colorado" }, { "city": "Tampa", "state": "Florida" }, { "city": "Chicago", "state": "Illinois" } ], "official_url": "https://clinicaltrials.gov/study/NCT05868226" }, { "nct_id": "NCT00863512", "title": "Chemotherapy or Observation in Treating Patients With Early Stage Non-Small Cell Lung Cancer", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Lung Cancer" ], "interventions": [ { "name": "cisplatin", "type": "DRUG" }, { "name": "docetaxel", "type": "DRUG" }, { "name": "gemcitabine hydrochloride", "type": "DRUG" }, { "name": "pemetrexed disodium", "type": "DRUG" }, { "name": "vinorelbine tartrate", "type": "DRUG" }, { "name": "standard follow-up care", "type": "PROCEDURE" } ], "intervention_types": [ "DRUG", "PROCEDURE" ], "sponsor": "Alliance for Clinical Trials in Oncology", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 34, "start_date": "2009-03", "completion_date": "2012-11", "has_results": true, "last_update_posted_date": "2017-03-27", "last_synced_at": "2026-09-12T01:51:36.946Z", "location_count": 93, "location_summary": "Anniston, Alabama • Birmingham, Alabama • Burbank, California + 66 more", "locations": [ { "city": "Anniston", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Burbank", "state": "California" }, { "city": "Glendale", "state": "California" }, { "city": "La Jolla", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00863512" }, { "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": 500, "start_date": "2025-05-07", "completion_date": "2029-06-30", "has_results": false, "last_update_posted_date": "2026-04-06", "last_synced_at": "2026-09-12T01:51:36.946Z", "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": "NCT04776837", "title": "Predicting Disease Progression and/or Recurrence in Cancer", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Patient Reported Outcome Measures", "Colorectal Cancer", "Pancreatic Cancer", "Biliary Tract Cancer", "Esophageal Cancer", "Metastatic Cancer", "Disease Progression", "Survival Analysis" ], "interventions": [ { "name": "Observational Cohort", "type": "BEHAVIORAL" } ], "intervention_types": [ "BEHAVIORAL" ], "sponsor": "Massachusetts General Hospital", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 159, "start_date": "2019-05-15", "completion_date": "2022-10-19", "has_results": false, "last_update_posted_date": "2026-05-15", "last_synced_at": "2026-09-12T01:51:36.946Z", "location_count": 1, "location_summary": "Boston, Massachusetts", "locations": [ { "city": "Boston", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT04776837" }, { "nct_id": "NCT06097312", "title": "PREHEVBRIO Pregnancy Outcomes Registry", "overall_status": "WITHDRAWN", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Vaccine Exposure During Pregnancy" ], "interventions": [ { "name": "Data collection", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "VBI Vaccines Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": null, "maximum_age": null, "sex": "FEMALE", "summary": "Female only" }, "enrollment_count": 0, "start_date": "2023-11-30", "completion_date": "2032-03-31", "has_results": false, "last_update_posted_date": "2026-05-11", "last_synced_at": "2026-09-12T01:51:36.946Z", "location_count": 1, "location_summary": "Overland Park, Kansas", "locations": [ { "city": "Overland Park", "state": "Kansas" } ], "official_url": "https://clinicaltrials.gov/study/NCT06097312" } ] }