Study: Pelvic intensity-modulated radiation delivered by helical tomotherapy after hysterectomy for cervical cancer with high-risk pathological features, at Washington University. 12
Design and measurements: This phase I study records 28 actual participants. The protocol used 50.4 Gy in 1.8-Gy fractions, approximately six weeks of radiation, with additional treatment such as chemotherapy or brachytherapy determined clinically. Its principal question was whether the technique could feasibly deliver the intended target coverage; toxicity and subsequent disease outcomes were also followed. 12
What is established: The record is completed, with a June 2016 update. No numerical toxicity, local-control, or survival result was verified. The protocol explicitly emphasizes feasibility rather than establishing comparative effectiveness, so it cannot support a claim of improved cure rates. 12