{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=External+Beam+Radiation+Therapy+%28RT%29&page=2", "query": { "intervention": "External Beam Radiation Therapy (RT)", "page": 2 }, "page_size": 10 }, "pagination": { "page": 2, "page_size": 10, "total_count": 146, "total_pages": 15, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=External+Beam+Radiation+Therapy+%28RT%29&page=3&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=External+Beam+Radiation+Therapy+%28RT%29&page=1&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-04T14:33:49.743Z", "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": "NCT03109873", "title": "Metformin Hydrochloride in Affecting Cytokines and Exosomes in Patients With Head and Neck Cancer", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "EARLY_PHASE1" ], "conditions": [ "Larynx", "Lip", "Oral Cavity", "Pharynx" ], "interventions": [ { "name": "External Beam Radiation Therapy", "type": "RADIATION" }, { "name": "Metformin Hydrochloride", "type": "DRUG" }, { "name": "Placebo", "type": "OTHER" } ], "intervention_types": [ "RADIATION", "DRUG", "OTHER" ], "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "90 Years", "sex": "ALL", "summary": "18 Years to 90 Years" }, "enrollment_count": 9, "start_date": "2017-01-05", "completion_date": "2020-07-31", "has_results": true, "last_update_posted_date": "2025-04-30", "last_synced_at": "2026-10-04T14:33:49.743Z", "location_count": 1, "location_summary": "Philadelphia, Pennsylvania", "locations": [ { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT03109873" }, { "nct_id": "NCT01175356", "title": "Induction Therapy Including 131 I-MIBG and Chemotherapy in Treating Patients With Newly Diagnosed High-Risk Neuroblastoma Undergoing Stem Cell Transplant, Radiation Therapy, and Maintenance Therapy With Isotretinoin", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Ganglioneuroblastoma", "Localized Resectable Neuroblastoma", "Localized Unresectable Neuroblastoma", "Regional Neuroblastoma", "Stage 4 Neuroblastoma", "Stage 4S Neuroblastoma" ], "interventions": [ { "name": "3-Dimensional Conformal Radiation Therapy", "type": "RADIATION" }, { "name": "Autologous Hematopoietic Stem Cell Transplantation", "type": "PROCEDURE" }, { "name": "Busulfan", "type": "DRUG" }, { "name": "Cisplatin", "type": "DRUG" }, { "name": "Cyclophosphamide", "type": "DRUG" }, { "name": "Doxorubicin Hydrochloride", "type": "DRUG" }, { "name": "Etoposide Phosphate", "type": "DRUG" }, { "name": "External Beam Radiation Therapy", "type": "RADIATION" }, { "name": "In Vitro-Treated Peripheral Blood Stem Cell Transplantation", "type": "PROCEDURE" }, { "name": "Intensity-Modulated Radiation Therapy", "type": "RADIATION" }, { "name": "Iobenguane I-131", "type": "RADIATION" }, { "name": "Isotretinoin", "type": "DRUG" }, { "name": "Laboratory Biomarker Analysis", "type": "OTHER" }, { "name": "Melphalan", "type": "DRUG" }, { "name": "Pharmacological Study", "type": "OTHER" }, { "name": "Questionnaire Administration", "type": "OTHER" }, { "name": "Therapeutic Conventional Surgery", "type": "PROCEDURE" }, { "name": "Topotecan Hydrochloride", "type": "DRUG" }, { "name": "Vincristine Sulfate", "type": "DRUG" } ], "intervention_types": [ "RADIATION", "PROCEDURE", "DRUG", "OTHER" ], "sponsor": "Children's Oncology Group", "sponsor_class": "NETWORK", "healthy_volunteers": false, "eligibility": { "minimum_age": "1 Year", "maximum_age": "30 Years", "sex": "ALL", "summary": "1 Year to 30 Years" }, "enrollment_count": 99, "start_date": "2011-12-21", "completion_date": "2025-12-31", "has_results": true, "last_update_posted_date": "2026-01-23", "last_synced_at": "2026-10-04T14:33:49.743Z", "location_count": 25, "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 20 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Los Angeles", "state": "California" }, { "city": "San Francisco", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01175356" }, { "nct_id": "NCT02710253", "title": "Salvage Radiation Therapy in Treating Patients With Metastatic Cancer That Has Progressed After Systemic Immunotherapy", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Hematopoietic and Lymphoid Cell Neoplasm", "Metastatic Malignant Solid Neoplasm" ], "interventions": [ { "name": "External Beam Radiation Therapy", "type": "RADIATION" }, { "name": "Laboratory Biomarker Analysis", "type": "OTHER" }, { "name": "Stereotactic Body Radiation Therapy", "type": "RADIATION" } ], "intervention_types": [ "RADIATION", "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": 214, "start_date": "2016-05-25", "completion_date": "2026-06-24", "has_results": false, "last_update_posted_date": "2026-07-07", "last_synced_at": "2026-10-04T14:33:49.743Z", "location_count": 5, "location_summary": "Conroe, Texas • Houston, Texas • League City, Texas + 1 more", "locations": [ { "city": "Conroe", "state": "Texas" }, { "city": "Houston", "state": "Texas" }, { "city": "Houston", "state": "Texas" }, { "city": "League City", "state": "Texas" }, { "city": "Sugar Land", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT02710253" }, { "nct_id": "NCT03070886", "title": "Antiandrogen Therapy and Radiation Therapy With or Without Docetaxel in Treating Patients With Prostate Cancer That Has Been Removed by Surgery", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2", "PHASE3" ], "conditions": [ "Stage I Prostate Adenocarcinoma AJCC v7", "Stage II Prostate Adenocarcinoma AJCC v7", "Stage III Prostate Adenocarcinoma AJCC v7" ], "interventions": [ { "name": "Bicalutamide", "type": "DRUG" }, { "name": "Degarelix", "type": "DRUG" }, { "name": "Docetaxel", "type": "DRUG" }, { "name": "External Beam Radiation Therapy", "type": "RADIATION" }, { "name": "Flutamide", "type": "DRUG" }, { "name": "Goserelin", "type": "DRUG" }, { "name": "Goserelin Acetate", "type": "DRUG" }, { "name": "Laboratory Biomarker Analysis", "type": "OTHER" }, { "name": "Leuprolide", "type": "DRUG" }, { "name": "Leuprolide Acetate", "type": "DRUG" }, { "name": "Nilutamide", "type": "DRUG" } ], "intervention_types": [ "DRUG", "RADIATION", "OTHER" ], "sponsor": "NRG Oncology", "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": 612, "start_date": "2017-04-05", "completion_date": "2030-10-31", "has_results": false, "last_update_posted_date": "2026-09-14", "last_synced_at": "2026-10-04T14:33:49.743Z", "location_count": 311, "location_summary": "Mobile, Alabama • Fairbanks, Alaska • Phoenix, Arizona + 254 more", "locations": [ { "city": "Mobile", "state": "Alabama" }, { "city": "Fairbanks", "state": "Alaska" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Tucson", "state": "Arizona" } ], "official_url": "https://clinicaltrials.gov/study/NCT03070886" }, { "nct_id": "NCT07447895", "title": "Early Pelvic Floor Physical Therapy for Women Undergoing Pelvic Radiation for Gynecologic Malignancies", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Cervical Cancer", "Radiation Therapy Complication", "Pelvic Floor Disorders" ], "interventions": [ { "name": "Pelvic floor physical therapy", "type": "PROCEDURE" } ], "intervention_types": [ "PROCEDURE" ], "sponsor": "University of Cincinnati", "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": 28, "start_date": "2026-04-16", "completion_date": "2030-04-16", "has_results": false, "last_update_posted_date": "2026-04-23", "last_synced_at": "2026-10-04T14:33:49.743Z", "location_count": 1, "location_summary": "Cincinnati, Ohio", "locations": [ { "city": "Cincinnati", "state": "Ohio" } ], "official_url": "https://clinicaltrials.gov/study/NCT07447895" }, { "nct_id": "NCT02830594", "title": "Pembrolizumab and Palliative Radiation Therapy in Treating Patients With Metastatic Esophagus, Stomach, or Gastroesophageal Junction Cancer", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Gastric Adenocarcinoma", "Gastric Squamous Cell Carcinoma", "Gastroesophageal Junction Adenocarcinoma", "Metastatic Malignant Neoplasm in the Stomach", "Stage IV Esophageal Adenocarcinoma AJCC v7", "Stage IV Esophageal Squamous Cell Carcinoma AJCC v7" ], "interventions": [ { "name": "External Beam Radiation Therapy", "type": "RADIATION" }, { "name": "Laboratory Biomarker Analysis", "type": "OTHER" }, { "name": "Pembrolizumab", "type": "BIOLOGICAL" } ], "intervention_types": [ "RADIATION", "OTHER", "BIOLOGICAL" ], "sponsor": "City of Hope Medical Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 14, "start_date": "2016-10-05", "completion_date": "2024-01-16", "has_results": true, "last_update_posted_date": "2024-02-20", "last_synced_at": "2026-10-04T14:33:49.743Z", "location_count": 1, "location_summary": "Duarte, California", "locations": [ { "city": "Duarte", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT02830594" }, { "nct_id": "NCT03345784", "title": "Testing AZD1775 inC Combination With Radiotherapy and Chemotherapy in Cervical, Upper Vaginal and Uterine Cancers", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Cervical Carcinoma", "Endometrioid Adenocarcinoma", "Malignant Female Reproductive System Neoplasm", "Recurrent Cervical Carcinoma", "Stage I Uterine Corpus Cancer AJCC v7", "Stage I Vaginal Cancer AJCC v6 and v7", "Stage IA Uterine Corpus Cancer AJCC v7", "Stage IB Cervical Cancer AJCC v6 and v7", "Stage IB Uterine Corpus Cancer AJCC v7", "Stage IB2 Cervical Cancer AJCC v6 and v7", "Stage II Cervical Cancer AJCC v7", "Stage II Uterine Corpus Cancer AJCC v7", "Stage II Vaginal Cancer AJCC v6 and v7", "Stage IIA Cervical Cancer AJCC v7", "Stage IIB Cervical Cancer AJCC v6 and v7", "Stage III Cervical Cancer AJCC v6 and v7", "Stage III Uterine Corpus Cancer AJCC v7", "Stage III Vaginal Cancer AJCC v6 and v7", "Stage IIIA Cervical Cancer AJCC v6 and v7", "Stage IIIA Uterine Corpus Cancer AJCC v7", "Stage IIIB Cervical Cancer AJCC v6 and v7", "Stage IIIB Uterine Corpus Cancer AJCC v7", "Stage IIIC Uterine Corpus Cancer AJCC v7", "Vaginal Carcinoma" ], "interventions": [ { "name": "Adavosertib", "type": "DRUG" }, { "name": "Cisplatin", "type": "DRUG" }, { "name": "External Beam Radiation Therapy", "type": "RADIATION" } ], "intervention_types": [ "DRUG", "RADIATION" ], "sponsor": "National Cancer Institute (NCI)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "FEMALE", "summary": "18 Years and older · Female only" }, "enrollment_count": 10, "start_date": "2018-05-29", "completion_date": "2022-05-10", "has_results": true, "last_update_posted_date": "2024-02-20", "last_synced_at": "2026-10-04T14:33:49.743Z", "location_count": 6, "location_summary": "Sacramento, California • Aurora, Colorado • Lexington, Kentucky + 2 more", "locations": [ { "city": "Sacramento", "state": "California" }, { "city": "Aurora", "state": "Colorado" }, { "city": "Lexington", "state": "Kentucky" }, { "city": "New Brunswick", "state": "New Jersey" }, { "city": "New Brunswick", "state": "New Jersey" } ], "official_url": "https://clinicaltrials.gov/study/NCT03345784" }, { "nct_id": "NCT05313191", "title": "Prospective Evaluation of Pencil Beam Scanning Proton Therapy for Previously Irradiated Tumors", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "CNS Cancer", "Head and Neck Cancer", "GI Cancer", "Gynecologic Cancer", "Prostate Cancer", "Thoracic Cancer", "Breast Cancer" ], "interventions": [ { "name": "Pencil Beam Scanning Proton Therapy", "type": "RADIATION" } ], "intervention_types": [ "RADIATION" ], "sponsor": "The New York Proton Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 1800, "start_date": "2022-01-24", "completion_date": "2028-01", "has_results": false, "last_update_posted_date": "2026-04-13", "last_synced_at": "2026-10-04T14:33:49.743Z", "location_count": 1, "location_summary": "New York, New York", "locations": [ { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT05313191" }, { "nct_id": "NCT01414608", "title": "Cisplatin and Radiation Therapy With or Without Carboplatin and Paclitaxel in Patients With Locally Advanced Cervical Cancer", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Cervical Adenocarcinoma", "Cervical Adenosquamous Carcinoma", "Cervical Squamous Cell Carcinoma, Not Otherwise Specified", "Stage IB Cervical Cancer AJCC v6 and v7", "Stage IIA Cervical Cancer AJCC v7", "Stage IIB Cervical Cancer AJCC v6 and v7", "Stage IIIB Cervical Cancer AJCC v6 and v7", "Stage IVA Cervical Cancer AJCC v6 and v7" ], "interventions": [ { "name": "Brachytherapy", "type": "RADIATION" }, { "name": "Carboplatin", "type": "DRUG" }, { "name": "Cisplatin", "type": "DRUG" }, { "name": "External Beam Radiation Therapy", "type": "RADIATION" }, { "name": "Paclitaxel", "type": "DRUG" }, { "name": "Quality-of-Life Assessment", "type": "OTHER" } ], "intervention_types": [ "RADIATION", "DRUG", "OTHER" ], "sponsor": "GOG Foundation", "sponsor_class": "NETWORK", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "FEMALE", "summary": "18 Years and older · Female only" }, "enrollment_count": 926, "start_date": "2012-01-09", "completion_date": "2021-07-09", "has_results": true, "last_update_posted_date": "2022-11-07", "last_synced_at": "2026-10-04T14:33:49.743Z", "location_count": 315, "location_summary": "Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 220 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Mobile", "state": "Alabama" }, { "city": "Anchorage", "state": "Alaska" }, { "city": "Anchorage", "state": "Alaska" }, { "city": "Phoenix", "state": "Arizona" } ], "official_url": "https://clinicaltrials.gov/study/NCT01414608" }, { "nct_id": "NCT05805371", "title": "PSCA-Targeting CAR-T Cells Plus or Minus Radiation for the Treatment of Patients With PSCA+ Metastatic Castration-Resistant Prostate Cancer", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Castration-Resistant Prostate Carcinoma", "Metastatic Prostate Carcinoma", "Stage IVB Prostate Cancer AJCC v8" ], "interventions": [ { "name": "Autologous Anti-PSCA-CAR-4-1BB/TCRzeta-CD19t-expressing T-lymphocytes", "type": "BIOLOGICAL" }, { "name": "Biopsy", "type": "PROCEDURE" }, { "name": "Biospecimen Collection", "type": "PROCEDURE" }, { "name": "Bone Scan", "type": "PROCEDURE" }, { "name": "Computed Tomography", "type": "PROCEDURE" }, { "name": "External Beam Radiation Therapy", "type": "RADIATION" }, { "name": "Leukapheresis", "type": "PROCEDURE" }, { "name": "Lymphodepletion Therapy", "type": "PROCEDURE" } ], "intervention_types": [ "BIOLOGICAL", "PROCEDURE", "RADIATION" ], "sponsor": "City of Hope Medical Center", "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": 21, "start_date": "2024-10-09", "completion_date": "2028-11-11", "has_results": false, "last_update_posted_date": "2026-08-21", "last_synced_at": "2026-10-04T14:33:49.743Z", "location_count": 1, "location_summary": "Duarte, California", "locations": [ { "city": "Duarte", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT05805371" } ] }