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RTOG 1304/NSABP B-51/Endorsed Study: A Randomized Phase III Clinical Trial Evaluating Post-Mastectomy Chestwall and Regional Nodal XRT and Post-Lumpectomy Regional Nodal XRT in Patients with Positive Axillary Nodes Before Neoadjuvant Chemotherapy who Convert to Pathologically Negative Axillary Nodes After Neoadjuvant Chemotherapy

Primary Objective

This is a clinical trial of radiation that will be administered after a lumpectomy, to the breast and lymph nodes or mastectomy, to the area where the breast used to be and lymph nodes. This is done to see if giving radiation as described above will help women live longer.

Study category: Cancer

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III - Research Studies that gather more information about a drug's safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs. These studies typically involve more participants.

Type of Study





Greeley Campus
Harmony Campus
Lone Tree Medical Center
Medical Center of the Rockies
Memorial Hospital Central
Memorial Hospital North
Poudre Valley Hospital
University of Colorado Hospital

Principal Investigator
Rachel Rabinovitch,  MD

Rachel Rabinovitch, MD

Study ID

Protocol Number: 13-2454 NCT01872975


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