Radiation Therapy Oncology Group
Trial Pipeline
Comparing Photon Therapy To Proton Therapy To Treat Patients With Lung Cancer
NCT01993810
Androgen-Deprivation Therapy and Radiation Therapy in Treating Patients With Prostate Cancer
NCT01368588
Higher Per Daily Treatment-Dose Radiation Therapy or Standard Per Daily Treatment Radiation Therapy in Treating Patients With Early-Stage Breast Cancer That Was Removed by Surgery
NCT01349322
Radiation Therapy With or Without Chemotherapy in Treating Patients With High-Risk Malignant Salivary Gland Tumors That Have Been Removed By Surgery
NCT01220583
RT With or Without Cetuximab in Treating Patients Who Have Undergone Surgery for Locally Advanced Head and Neck Cancer
NCT00956007
Prostate Radiation Therapy or Short-Term Androgen Deprivation Therapy and Pelvic Lymph Node Radiation Therapy With or Without Prostate Radiation Therapy in Treating Patients With a Rising Prostate Specific Antigen (PSA) After Surgery for Prostate Cancer
NCT00567580
Hormone Therapy, Radiation Therapy, and Steroid 17alpha-monooxygenase TAK-700 in Treating Patients With High-Risk Prostate Cancer
NCT01546987
Natural History of Brain Function, Quality of Life, and Seizure Control in Patients With Brain Tumor Who Have Undergone Surgery
NCT01417507
Radiation Therapy With Cisplatin or Cetuximab in Treating Patients With Oropharyngeal Cancer
NCT01302834
Chemotherapy and Radiation Therapy With or Without Panitumumab in Treating Patients With Stage IIIA Non-Small Cell Lung Cancer
NCT00979212
Tadalafil in Preventing Erectile Dysfunction in Patients With Prostate Cancer Treated With Radiation Therapy
NCT00931528
Radiation Therapy in Treating Patients With Stage I Non-Small Cell Lung Cancer
NCT00960999
Observation or Radiation Therapy in Treating Patients With Grade I, Grade II, or Grade III Meningioma
NCT00895622
Radiation Therapy, Androgen Suppression, and Docetaxel in Treating Patients With High-Risk Prostate Cancer Who Have Undergone Radical Prostatectomy
NCT00528866
Intensity-Modulated Radiation Therapy, Fluorouracil, and Mitomycin C in Treating Patients With Invasive Anal Cancer
NCT00423293
Radiation Therapy in Treating Patients With Liver Metastases
NCT00255814
Stereotactic Body Radiation Therapy in Treating Patients With Inoperable Stage I or Stage II Non-Small Cell Lung Cancer
NCT00087438
Cetuximab, Paclitaxel, Carboplatin, and Radiation Therapy in Treating Patients With Unresectable Stage IIIA or Stage IIIB Non-Small Cell Lung Cancer
NCT00081302
Interstitial Brachytherapy With or Without External-Beam Radiation Therapy in Treating Patients With Prostate Cancer
NCT00063882
Comparison of Nutritional Supplements in Preventing Weight Loss in Patients With Cancer
NCT00053053
Radiation Therapy in Preventing Central Nervous System (CNS) Metastases in Patients With Non-Small Cell Lung Cancer
NCT00048997
Chemotherapy and Radiation Therapy With or Without Surgery in Treating Patients With Head and Neck Cancer
NCT00047008
Radiation Therapy in Treating Patients With Stage II Prostate Cancer
NCT00033631
Radiation Therapy With or Without SU5416 in Treating Patients With Soft Tissue Sarcoma
NCT00023725
Radiation Therapy and Cisplatin With or Without Amifostine for Patients With Stage IIIB or IVA Cervical Cancer
NCT00012012
Combination Chemotherapy Plus Radiation Therapy With or Without Fluorouracil in Treating Patients With Cancer of the Esophagus or Stomach
NCT00009880
Chemotherapy and Radiation Therapy Following Surgery in Treating Patients With Head and Neck Cancer
NCT00011999
External-Beam Radiation Therapy Plus Implanted Radiation Therapy in Treating Patients With Prostate Cancer
NCT00006365
Evaluation of Memory Skills in Patients Receiving Radiation Therapy for Brain Metastases
NCT00007007
Biafine Cream to Reduce Side Effects of Radiation Therapy in Patients Receiving Treatment for Advanced Head and Neck Cancer
NCT00006481
Comparison of Radiation Therapy With or Without Combination Chemotherapy Following Surgery in Treating Patients With Stage I or Stage II Endometrial Cancer
NCT00006027
Radiation Therapy Combined With Chemotherapy in Treating Patients With Anaplastic Astrocytoma or Mixed Gliomas
NCT00004259
Computer Planned Radiation Therapy Plus Chemotherapy in Treating Patients With Glioblastoma Multiforme
NCT00003417
Cisplatin and Radiation Therapy in Treating Patients With Stage IV Cancer of the Head and Neck
NCT00002932
Radiation Therapy in Treating Women With Stage I or Stage II Breast Cancer
NCT00002873
Radiation Therapy With or Without Antiandrogen Therapy in Treating Patients With Stage I or Stage II Prostate Cancer
NCT00002597
Radiation Therapy in Treating Patients With Stage II or Stage III Prostate Cancer
NCT00002602
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 6 |
| Phase 2 | 12 |
| Phase 3 | 17 |
What the Pipeline for Radiation Therapy Oncology Group Shows
According to the ClinicalTrials.gov registry, Radiation Therapy Oncology Group is linked to 37 US clinical trials across every stage of research activity. Of those, 0 studies are currently recruiting — about 0% of the sponsor's indexed portfolio — and 31 are already marked complete, representing roughly 84% of the total. Recruiting share is one of the more practical signals here: it reflects how much of a sponsor's research is presently open to new participants, while the completed share indicates the depth of finished work that has already contributed registry results. Both counts come directly from the public ClinicalTrials.gov dataset and are refreshed on the registry side; this page mirrors the latest data pull without altering it.
The phase mix for Radiation Therapy Oncology Group reports 17 late-stage studies (Phase 3 and Phase 4 combined) and 18 earlier-phase studies (Phase 1 and Phase 2). A portfolio weighted toward Phase 3 usually reflects an organization advancing candidates toward regulatory review, where the research centers on comparative efficacy and broader safety across larger populations. A heavier Phase 1 and Phase 2 tilt generally indicates exploratory work — safety, dosing, and early signal detection — and is common among research-forward sponsors that seed many early programs. Phase 4 entries, when present, track interventions already in real-world use and typically focus on long-term safety, effectiveness across subgroups, or formulation comparisons.
The top therapeutic focus area indexed for Radiation Therapy Oncology Group is Prostate Cancer with 10 linked trials, and 9 other condition areas appear in the top list above. That distribution is a quick read of where the organization concentrates its research attention; it does not imply product availability, market share, or any clinical endorsement. All numbers on this page come from ClinicalTrials.gov maintained by the National Library of Medicine, and counts can shift as new studies are registered or existing ones update their status. This information is provided for reference and educational purposes only, not as medical, investment, or regulatory advice — verify current details directly with ClinicalTrials.gov before relying on any figure here.
Read our methodology — how this data is sourced, computed, and verified.