Credentialing
| Cancer Trials Support Unit (CTSU) | 
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Participation in clinical trials thru CTSU requires that the institution be monitored by the IROC Houston. Specific clinical trials may have particular requirements for credentialing.
	
		
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| RTOG 0232 | --- | A Phase III Study Comparing Combined External Beam Radiation and Transperineal Interstitial Permanent Brachytherapy with Brachytherapy alone for Selected Patients with Intermediate Risk Prostatic Carcinoma.---(CLOSED) | 
| NSABP-39 / RTOG 0413 | --- | A Randomized Phase III Study of Conventional Whole Breast Irradiation (WBI) Versus Partial Breast Irradiation (PBI) for Women with State 0, I, or II Breast Cancer ---(CLOSED). > | 
| RTOG 0421 | --- | A Phase III trial for locally recurrent, previously irradiated head and neck cancer: Concurrent re-irradiation and chemotherapy versus chemotherapy alone.--(CLOSED) | 
| RTOG 0521 | --- | A Phase III Protocol of Androgen Suppression (AS) and 3DCRT/IMRT vs AS and 3DCRT/IMRT Followed by Chemotherapy With Docetaxel and Prednisone for Localized, High-Risk Prostate Cancer.---(CLOSED) |