Radiation Oncology

Gastrointestinal Cancer

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UT Southwestern Medical Center’s gastrointestinal cancer program includes a dedicated team that offers a level of expertise unmatched in Dallas and North Texas. We provide our patients with comprehensive, timely, and effective care.

Our GI team uses the latest techniques with the most modern approaches, such as 3-D conformal radiotherapy, intensity-modulated radiation therapy (IMRT), and brachytherapy implants. 

Meet Our Team

Nina Sanford, M.D., Chief of Gastrointestinal Radiation Oncology Service

Nina Sanford, M.D., Chief of Gastrointestinal Radiation Oncology Service

Todd Aguilera, M.D., Ph.D.

Todd Aguilera, M.D., Ph.D.

Amy Sessions, M.P.A.S., PA-C

Amy Sessions, M.P.A.S., PA-C

Andrew Wang, M.D.

Andrew Wang, M.D.

Educational Materials

Upper GI Cancer

Lower GI Cancer

Liver Cancer

Multidisciplinary Team Approach to Pancreatic Cancer

Learn about UT Southwestern's multidisciplinary approach to the treatment of pancreatic cancer.

Gastrointestinal Clinical Trials

As one of the top academic medical centers in the country and the only National Cancer Institute-designated cancer center in North Texas, we lead and participate in a number of clinical trials aimed at improving the outcomes of patients with cancer. The Department of Radiation Oncology enrolls approximately 200 new patients in clinical trials each year. 

Clinical trials are critical in developing new therapies for cancer and can mean having access to new medication, groundbreaking research, and additional clinical care. Our clinical trials team is comprised of radiation oncologists, radiation biologists, clinical research coordinators, quality assurance coordinators, and clinical data specialists. 


INNATE - Immunotherapy During Neoadjuvant Therapy for Rectal Cancer, a Phase II Randomized Multicenter Trial with and without APX005M, an Anti-CD40 Agonist. (STU 2019-1492)

A Randomized Phase II Study of Deintensified Chemoradiation for Early Stage Anal Squamous Cell Carcinoma. (STU 2020-0166: EA2182)

A Randomized, Phase 2 Study of Stereotactic Body Radiation Therapy (SBRT) in Combination with GC4711 in the Treatment of Locally Advanced or Borderline Resectable, Non-Metastatic Pancreatic Cancer. (STU 2020-1216: GRECO-2)

Phase I Trial of Ultra-Fractionated Adaptive Radiotherapy, Chemotherapy and Selective Omission of Surgery for Locally Advanced Rectal Cancer. (STU 2020-1394)

If you’re interested in a clinical trial, please talk to your doctor. Learn more about clinical trials.

Helpful Resources