{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=External+beam+radiation+therapy&page=4", "query": { "intervention": "External beam radiation therapy", "page": 4 }, "page_size": 10 }, "pagination": { "page": 4, "page_size": 10, "total_count": 534, "total_pages": 54, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=External+beam+radiation+therapy&page=5&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=External+beam+radiation+therapy&page=3&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-07T22:50:42.566Z", "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": "NCT02050919", "title": "Sorafenib Tosylate, Combination Chemotherapy, Radiation Therapy, and Surgery in Treating Patients With High-Risk Stage IIB-IV Soft Tissue Sarcoma", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Pleomorphic Rhabdomyosarcoma", "Stage IIB Adult Soft Tissue Sarcoma AJCC v7", "Stage III Adult Soft Tissue Sarcoma AJCC v7", "Stage IV Adult Soft Tissue Sarcoma AJCC v7" ], "interventions": [ { "name": "Epirubicin Hydrochloride", "type": "DRUG" }, { "name": "External Beam Radiation Therapy", "type": "RADIATION" }, { "name": "Ifosfamide", "type": "DRUG" }, { "name": "Laboratory Biomarker Analysis", "type": "OTHER" }, { "name": "Sorafenib Tosylate", "type": "DRUG" }, { "name": "Therapeutic Conventional Surgery", "type": "PROCEDURE" } ], "intervention_types": [ "DRUG", "RADIATION", "OTHER", "PROCEDURE" ], "sponsor": "OHSU Knight Cancer Institute", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 20, "start_date": "2013-12-03", "completion_date": "2020-12-31", "has_results": true, "last_update_posted_date": "2022-03-21", "last_synced_at": "2026-10-07T22:50:42.566Z", "location_count": 1, "location_summary": "Portland, Oregon", "locations": [ { "city": "Portland", "state": "Oregon" } ], "official_url": "https://clinicaltrials.gov/study/NCT02050919" }, { "nct_id": "NCT00055601", "title": "Combination Chemotherapy and Radiation Therapy With/Without Surgery In Patients With Stage II/III Bladder Cancer", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Bladder Cancer" ], "interventions": [ { "name": "cisplatin", "type": "DRUG" }, { "name": "fluorouracil", "type": "DRUG" }, { "name": "paclitaxel", "type": "DRUG" }, { "name": "radiation therapy", "type": "RADIATION" }, { "name": "Gemcitabine", "type": "DRUG" }, { "name": "Radical cystectomy", "type": "PROCEDURE" } ], "intervention_types": [ "DRUG", "RADIATION", "PROCEDURE" ], "sponsor": "Radiation Therapy Oncology Group", "sponsor_class": "NETWORK", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": "120 Years", "sex": "ALL", "summary": "Up to 120 Years" }, "enrollment_count": 97, "start_date": "2002-12", "completion_date": "2018-05-14", "has_results": true, "last_update_posted_date": "2018-06-15", "last_synced_at": "2026-10-07T22:50:42.566Z", "location_count": 2, "location_summary": "Salt Lake City, Utah", "locations": [ { "city": "Salt Lake City", "state": "Utah" }, { "city": "Salt Lake City", "state": "Utah" } ], "official_url": "https://clinicaltrials.gov/study/NCT00055601" }, { "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": "2026-10-07T22:50:42.566Z", "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": "NCT01798004", "title": "Busulfan, Melphalan, and Stem Cell Transplant After Chemotherapy in Treating Patients With Newly Diagnosed High-Risk Neuroblastoma", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Ganglioneuroblastoma", "Stage 1 Neuroblastoma", "Stage 2 Neuroblastoma", "Stage 2A Neuroblastoma", "Stage 2B Neuroblastoma", "Stage 3 Neuroblastoma", "Stage 4 Neuroblastoma", "Stage 4S Neuroblastoma" ], "interventions": [ { "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", "type": "DRUG" }, { "name": "External Beam Radiation Therapy", "type": "RADIATION" }, { "name": "Filgrastim", "type": "BIOLOGICAL" }, { "name": "Laboratory Biomarker Analysis", "type": "OTHER" }, { "name": "Melphalan", "type": "DRUG" }, { "name": "Mesna", "type": "DRUG" }, { "name": "Peripheral Blood Stem Cell Transplantation", "type": "PROCEDURE" }, { "name": "Pharmacological Study", "type": "OTHER" }, { "name": "Topotecan Hydrochloride", "type": "DRUG" }, { "name": "Vincristine Sulfate", "type": "DRUG" } ], "intervention_types": [ "PROCEDURE", "DRUG", "RADIATION", "BIOLOGICAL", "OTHER" ], "sponsor": "Children's Oncology Group", "sponsor_class": "NETWORK", "healthy_volunteers": false, "eligibility": { "minimum_age": null, "maximum_age": "30 Years", "sex": "ALL", "summary": "Up to 30 Years" }, "enrollment_count": 150, "start_date": "2013-04-09", "completion_date": "2024-06-30", "has_results": true, "last_update_posted_date": "2024-07-15", "last_synced_at": "2026-10-07T22:50:42.566Z", "location_count": 113, "location_summary": "Birmingham, Alabama • Downey, California • Duarte, California + 90 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Downey", "state": "California" }, { "city": "Duarte", "state": "California" }, { "city": "Loma Linda", "state": "California" }, { "city": "Los Angeles", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01798004" }, { "nct_id": "NCT02935309", "title": "Capecitabine and Lenvatinib With External Radiation in Rectal Adenocarcinoma", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Rectal Cancer", "Rectal Adenocarcinoma" ], "interventions": [ { "name": "Lenvatinib", "type": "DRUG" }, { "name": "Capecitabine", "type": "DRUG" }, { "name": "External Radiation Therapy (XRT)", "type": "RADIATION" } ], "intervention_types": [ "DRUG", "RADIATION" ], "sponsor": "H. Lee Moffitt Cancer Center and Research Institute", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 20, "start_date": "2016-10-14", "completion_date": "2020-05-14", "has_results": false, "last_update_posted_date": "2022-05-31", "last_synced_at": "2026-10-07T22:50:42.566Z", "location_count": 1, "location_summary": "Tampa, Florida", "locations": [ { "city": "Tampa", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT02935309" }, { "nct_id": "NCT03051464", "title": "Randomizing Two Radiotherapy Boost Options to Avoid Rectal Cancer Surgery", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2", "PHASE3" ], "conditions": [ "Stage II Rectal Cancer", "Organ Preservation", "Non-operative Treatment", "Rectal Cancer (Stage III)", "Rectal Cancer Patients" ], "interventions": [ { "name": "Complete responders and Non-complete responders", "type": "PROCEDURE" }, { "name": "Chemoradiation + EBRT Boost", "type": "RADIATION" }, { "name": "Chemoradiation + HDRBT Boost", "type": "RADIATION" } ], "intervention_types": [ "PROCEDURE", "RADIATION" ], "sponsor": "Sir Mortimer B. Davis - Jewish General Hospital", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "80 Years", "sex": "ALL", "summary": "18 Years to 80 Years" }, "enrollment_count": 131, "start_date": "2017-04-25", "completion_date": "2030-01", "has_results": false, "last_update_posted_date": "2026-06-30", "last_synced_at": "2026-10-07T22:50:42.566Z", "location_count": 1, "location_summary": "Dallas, Texas", "locations": [ { "city": "Dallas", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT03051464" }, { "nct_id": "NCT01012609", "title": "External Beam Radiation Therapy and Cetuximab Followed by Irinotecan and Cetuximab for Children and Young Adults With Newly Diagnosed Diffuse Pontine Tumors and High-Grade Astrocytomas", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Brain Cancer" ], "interventions": [ { "name": "cetuximab in conjunction with external beam radiation therapy, followed by cetuximab and irinotecan", "type": "OTHER" } ], "intervention_types": [ "OTHER" ], "sponsor": "Memorial Sloan Kettering Cancer Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "3 Years", "maximum_age": "21 Years", "sex": "ALL", "summary": "3 Years to 21 Years" }, "enrollment_count": 47, "start_date": "2009-10-30", "completion_date": "2018-01-15", "has_results": true, "last_update_posted_date": "2022-03-14", "last_synced_at": "2026-10-07T22:50:42.566Z", "location_count": 11, "location_summary": "Phoenix, Arizona • Denver, Colorado • Gainesville, Florida + 8 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Denver", "state": "Colorado" }, { "city": "Gainesville", "state": "Florida" }, { "city": "Orlando", "state": "Florida" }, { "city": "Atlanta", "state": "Georgia" } ], "official_url": "https://clinicaltrials.gov/study/NCT01012609" }, { "nct_id": "NCT00116142", "title": "Hormone Suppression and Radiation Therapy for 6 Months With/Without Docetaxel for High Risk Prostate Cancer", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Prostate Cancer" ], "interventions": [ { "name": "Docetaxel", "type": "DRUG" }, { "name": "Androgen Hormonal Suppression and Radiation", "type": "DRUG" }, { "name": "Androgen Suppression Therapy and Radiation Therapy", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Dana-Farber Cancer Institute", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "30 Years", "maximum_age": null, "sex": "MALE", "summary": "30 Years and older · Male only" }, "enrollment_count": 350, "start_date": "2005-06", "completion_date": "2020-06-29", "has_results": true, "last_update_posted_date": "2022-01-11", "last_synced_at": "2026-10-07T22:50:42.566Z", "location_count": 1, "location_summary": "Boston, Massachusetts", "locations": [ { "city": "Boston", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT00116142" }, { "nct_id": "NCT06008730", "title": "Proton Beam Radiation Therapy After Treatment for Resected N2 Non-Small Cell Lung Cancer", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Resectable Lung Non-Small Cell Carcinoma" ], "interventions": [ { "name": "Biospecimen Collection", "type": "PROCEDURE" }, { "name": "Proton Beam Radiation Therapy", "type": "RADIATION" }, { "name": "Radiology, Treatment Planning", "type": "OTHER" } ], "intervention_types": [ "PROCEDURE", "RADIATION", "OTHER" ], "sponsor": "Emory University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 10, "start_date": "2024-12-13", "completion_date": "2027-12-31", "has_results": false, "last_update_posted_date": "2026-09-16", "last_synced_at": "2026-10-07T22:50:42.566Z", "location_count": 1, "location_summary": "Atlanta, Georgia", "locations": [ { "city": "Atlanta", "state": "Georgia" } ], "official_url": "https://clinicaltrials.gov/study/NCT06008730" }, { "nct_id": "NCT05800405", "title": "Evaluation of Bridging Radiation Therapy Before CAR T-Cell Infusion for the Treatment of Relapsed or Refractory Large B-Cell Lymphoma", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "EARLY_PHASE1" ], "conditions": [ "Recurrent Diffuse Large B-Cell Lymphoma", "Refractory Diffuse Large B-Cell Lymphoma" ], "interventions": [ { "name": "Biospecimen Collection", "type": "PROCEDURE" }, { "name": "Chimeric Antigen Receptor T-Cell Therapy", "type": "BIOLOGICAL" }, { "name": "Computed Tomography", "type": "PROCEDURE" }, { "name": "External Beam Radiation Therapy", "type": "RADIATION" }, { "name": "Leukapheresis", "type": "PROCEDURE" }, { "name": "Magnetic Resonance Imaging", "type": "PROCEDURE" }, { "name": "Positron Emission Tomography", "type": "PROCEDURE" } ], "intervention_types": [ "PROCEDURE", "BIOLOGICAL", "RADIATION" ], "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": 9, "start_date": "2023-07-20", "completion_date": "2027-01-04", "has_results": false, "last_update_posted_date": "2026-02-04", "last_synced_at": "2026-10-07T22:50:42.566Z", "location_count": 1, "location_summary": "Duarte, California", "locations": [ { "city": "Duarte", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT05800405" } ] }