{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ancillary+Study&page=80", "query": { "intervention": "Ancillary Study", "page": 80 }, "page_size": 10 }, "pagination": { "page": 80, "page_size": 10, "total_count": 2165, "total_pages": 217, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ancillary+Study&page=81&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ancillary+Study&page=79&page_size=10" }, "source": "remote", "last_synced_at": "2026-11-02T10:56:22.277Z", "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": "NCT07278739", "title": "Testing an Educational Program to Improve Goals of Care Conversations Between Patients and Their Care Teams", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Malignant Solid Neoplasm" ], "interventions": [ { "name": "Best Practice", "type": "OTHER" }, { "name": "Educational Intervention", "type": "OTHER" }, { "name": "Electronic Health Record Review", "type": "OTHER" }, { "name": "Interview", "type": "OTHER" }, { "name": "Questionnaire Administration", "type": "OTHER" }, { "name": "Telephone-Based Intervention", "type": "BEHAVIORAL" } ], "intervention_types": [ "OTHER", "BEHAVIORAL" ], "sponsor": "SWOG Cancer Research Network", "sponsor_class": "NETWORK", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 1020, "start_date": "2026-08-07", "completion_date": "2032-07-21", "has_results": false, "last_update_posted_date": "2026-10-09", "last_synced_at": "2026-11-02T10:56:22.277Z", "location_count": 7, "location_summary": "Little Rock, Arkansas • Honolulu, Hawaii • Danville, Illinois + 4 more", "locations": [ { "city": "Little Rock", "state": "Arkansas" }, { "city": "Honolulu", "state": "Hawaii" }, { "city": "Danville", "state": "Illinois" }, { "city": "Effingham", "state": "Illinois" }, { "city": "Mattoon", "state": "Illinois" } ], "official_url": "https://clinicaltrials.gov/study/NCT07278739" }, { "nct_id": "NCT03892967", "title": "Enhanced, EHR-facilitated Cancer Symptom Control Pragmatic Clinical Trial", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Hematopoietic and Lymphoid Cell Neoplasm", "Malignant Solid Neoplasm" ], "interventions": [ { "name": "Interview", "type": "OTHER" }, { "name": "Quality-of-Life Assessment", "type": "OTHER" }, { "name": "Questionnaire Administration", "type": "OTHER" } ], "intervention_types": [ "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": 50207, "start_date": "2019-03-28", "completion_date": "2023-01-31", "has_results": true, "last_update_posted_date": "2025-10-07", "last_synced_at": "2026-11-02T10:56:22.277Z", "location_count": 1, "location_summary": "Rochester, Minnesota", "locations": [ { "city": "Rochester", "state": "Minnesota" } ], "official_url": "https://clinicaltrials.gov/study/NCT03892967" }, { "nct_id": "NCT06909500", "title": "A Digital Intervention (ACT on Vaping App) for Vaping Cessation in Young Adult E-Cigarette Users", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Nicotine Dependence", "Tobacco-Related Carcinoma" ], "interventions": [ { "name": "Smartphone app", "type": "BEHAVIORAL" }, { "name": "Text Message", "type": "OTHER" }, { "name": "Survey Administration", "type": "OTHER" } ], "intervention_types": [ "BEHAVIORAL", "OTHER" ], "sponsor": "Fred Hutchinson Cancer Center", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "30 Years", "sex": "ALL", "summary": "18 Years to 30 Years" }, "enrollment_count": 1178, "start_date": "2026-05-20", "completion_date": "2027-11-15", "has_results": false, "last_update_posted_date": "2026-09-08", "last_synced_at": "2026-11-02T10:56:22.277Z", "location_count": 1, "location_summary": "Seattle, Washington", "locations": [ { "city": "Seattle", "state": "Washington" } ], "official_url": "https://clinicaltrials.gov/study/NCT06909500" }, { "nct_id": "NCT06822530", "title": "A Multilevel Intervention to Increase Colorectal Cancer Screening Tests in Patients With Abnormal Fecal Immunochemical Test Results, PROACT Trial", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Colorectal Carcinoma" ], "interventions": [ { "name": "Best Practice", "type": "OTHER" }, { "name": "Educational Intervention", "type": "OTHER" }, { "name": "Electronic Health Record Review", "type": "OTHER" }, { "name": "Interview", "type": "OTHER" }, { "name": "Supportive Care", "type": "OTHER" }, { "name": "Survey Administration", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Fred Hutchinson Cancer Center", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "45 Years", "maximum_age": "75 Years", "sex": "ALL", "summary": "45 Years to 75 Years" }, "enrollment_count": 682, "start_date": "2025-12-16", "completion_date": "2030-01-31", "has_results": false, "last_update_posted_date": "2026-06-22", "last_synced_at": "2026-11-02T10:56:22.277Z", "location_count": 1, "location_summary": "Seattle, Washington", "locations": [ { "city": "Seattle", "state": "Washington" } ], "official_url": "https://clinicaltrials.gov/study/NCT06822530" }, { "nct_id": "NCT04142398", "title": "Incidence of HPV Infection and HPV-Associated Disease in Screening Indian Men Who Have Sex With HIV-Positive Men", "overall_status": "WITHDRAWN", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "HIV Infection", "Human Papillomavirus Infection", "Human Papillomavirus-Related Carcinoma" ], "interventions": [ { "name": "Cytology Specimen Collection Procedure", "type": "OTHER" }, { "name": "High Resolution Anoscopy with Biopsy", "type": "PROCEDURE" }, { "name": "Laboratory Biomarker Analysis", "type": "OTHER" }, { "name": "Medical Examination", "type": "PROCEDURE" }, { "name": "Physical Examination", "type": "PROCEDURE" }, { "name": "Questionnaire Administration", "type": "OTHER" } ], "intervention_types": [ "OTHER", "PROCEDURE" ], "sponsor": "AIDS Malignancy Consortium", "sponsor_class": "NETWORK", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "MALE", "summary": "18 Years and older · Male only" }, "enrollment_count": 0, "start_date": "2027-04-30", "completion_date": "2031-12-31", "has_results": false, "last_update_posted_date": "2025-06-06", "last_synced_at": "2026-11-02T10:56:22.277Z", "location_count": 1, "location_summary": "San Francisco, California", "locations": [ { "city": "San Francisco", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT04142398" }, { "nct_id": "NCT05438212", "title": "Comparing the Addition of Radiation Either Before or After Surgery for Patients With Brain Metastases", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Metastatic Malignant Neoplasm in the Brain" ], "interventions": [ { "name": "Brain Surgery", "type": "PROCEDURE" }, { "name": "Quality-of-Life Assessment", "type": "OTHER" }, { "name": "Questionnaire Administration", "type": "OTHER" }, { "name": "Stereotactic Radiosurgery", "type": "RADIATION" } ], "intervention_types": [ "PROCEDURE", "OTHER", "RADIATION" ], "sponsor": "NRG Oncology", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 237, "start_date": "2022-10-24", "completion_date": "2032-03-16", "has_results": false, "last_update_posted_date": "2026-09-10", "last_synced_at": "2026-11-02T10:56:22.277Z", "location_count": 208, "location_summary": "Phoenix, Arizona • Tucson, Arizona • Anaheim, California + 154 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Anaheim", "state": "California" }, { "city": "Auburn", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT05438212" }, { "nct_id": "NCT04489719", "title": "Impact of DNA Repair Pathway Alterations on Sensitivity to Radium-223 in Bone Metastatic Castration-resistant Prostate Cancer", "overall_status": "RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Castration-Resistant Prostate Carcinoma", "Metastatic Malignant Neoplasm in the Bone", "Metastatic Prostate Carcinoma", "Stage IVB Prostate Cancer AJCC v8" ], "interventions": [ { "name": "Biospecimen Collection", "type": "PROCEDURE" }, { "name": "Questionnaire Administration", "type": "OTHER" }, { "name": "Radium Ra 223 Dichloride", "type": "DRUG" } ], "intervention_types": [ "PROCEDURE", "OTHER", "DRUG" ], "sponsor": "University of Washington", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "MALE", "summary": "18 Years and older · Male only" }, "enrollment_count": 48, "start_date": "2021-04-16", "completion_date": "2030-08-01", "has_results": false, "last_update_posted_date": "2026-10-22", "last_synced_at": "2026-11-02T10:56:22.277Z", "location_count": 4, "location_summary": "Baltimore, Maryland • Bozeman, Montana • Seattle, Washington + 1 more", "locations": [ { "city": "Baltimore", "state": "Maryland" }, { "city": "Bozeman", "state": "Montana" }, { "city": "Seattle", "state": "Washington" }, { "city": "Madison", "state": "Wisconsin" } ], "official_url": "https://clinicaltrials.gov/study/NCT04489719" }, { "nct_id": "NCT00005036", "title": "Irinotecan Compared With Combination Chemotherapy in Treating Patients With Advanced Colorectal Cancer", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Mucinous Adenocarcinoma of the Colon", "Mucinous Adenocarcinoma of the Rectum", "Recurrent Colon Cancer", "Recurrent Rectal Cancer", "Signet Ring Adenocarcinoma of the Colon", "Signet Ring Adenocarcinoma of the Rectum", "Stage IIIA Colon Cancer", "Stage IIIA Rectal Cancer", "Stage IIIB Colon Cancer", "Stage IIIB Rectal Cancer", "Stage IIIC Colon Cancer", "Stage IIIC Rectal Cancer", "Stage IVA Colon Cancer", "Stage IVA Rectal Cancer", "Stage IVB Colon Cancer", "Stage IVB Rectal Cancer" ], "interventions": [ { "name": "irinotecan hydrochloride", "type": "DRUG" }, { "name": "oxaliplatin", "type": "DRUG" }, { "name": "leucovorin calcium", "type": "DRUG" }, { "name": "fluorouracil", "type": "DRUG" }, { "name": "quality-of-life assessment", "type": "PROCEDURE" } ], "intervention_types": [ "DRUG", "PROCEDURE" ], "sponsor": "National Cancer Institute (NCI)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 560, "start_date": "1999-11", "completion_date": null, "has_results": false, "last_update_posted_date": "2013-05-03", "last_synced_at": "2026-11-02T10:56:22.277Z", "location_count": 1, "location_summary": "Rochester, Minnesota", "locations": [ { "city": "Rochester", "state": "Minnesota" } ], "official_url": "https://clinicaltrials.gov/study/NCT00005036" }, { "nct_id": "NCT07111234", "title": "Studying Flavors and Cooling Agents in Oral Nicotine Pouches to Understand User Preferences", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Cigarette Smoking-Related Carcinoma" ], "interventions": [ { "name": "Carbon Monoxide Measurement", "type": "PROCEDURE" }, { "name": "Nicotine Oral Pouch", "type": "DRUG" }, { "name": "Questionnaire Administration", "type": "OTHER" }, { "name": "Smoke usual brand cigarette", "type": "DRUG" } ], "intervention_types": [ "PROCEDURE", "DRUG", "OTHER" ], "sponsor": "Ohio State University Comprehensive Cancer Center", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "21 Years", "maximum_age": null, "sex": "ALL", "summary": "21 Years and older" }, "enrollment_count": 30, "start_date": "2025-09-15", "completion_date": "2026-12-31", "has_results": false, "last_update_posted_date": "2025-12-24", "last_synced_at": "2026-11-02T10:56:22.277Z", "location_count": 1, "location_summary": "Columbus, Ohio", "locations": [ { "city": "Columbus", "state": "Ohio" } ], "official_url": "https://clinicaltrials.gov/study/NCT07111234" }, { "nct_id": "NCT03036930", "title": "Preventive Human Papillomavirus (HPV) Vaccine Trial in Kidney Transplant Recipients", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Human Papillomavirus Infection", "Human Papillomavirus-Related Carcinoma" ], "interventions": [ { "name": "Biospecimen Collection", "type": "PROCEDURE" }, { "name": "HPV Self-Collection", "type": "PROCEDURE" }, { "name": "Questionnaire Administration", "type": "OTHER" }, { "name": "Recombinant Human Papillomavirus Nonavalent Vaccine", "type": "BIOLOGICAL" } ], "intervention_types": [ "PROCEDURE", "OTHER", "BIOLOGICAL" ], "sponsor": "National Cancer Institute (NCI)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "49 Years", "sex": "ALL", "summary": "18 Years to 49 Years" }, "enrollment_count": 51, "start_date": "2017-06-23", "completion_date": "2027-03-10", "has_results": true, "last_update_posted_date": "2026-09-14", "last_synced_at": "2026-11-02T10:56:22.277Z", "location_count": 6, "location_summary": "Birmingham, Alabama • Los Angeles, California • San Francisco, California + 3 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Los Angeles", "state": "California" }, { "city": "San Francisco", "state": "California" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Rochester", "state": "Minnesota" } ], "official_url": "https://clinicaltrials.gov/study/NCT03036930" } ] }