Programa de terapia con rayos de protones

A continuación, se enumeran los ensayos clínicos actuales.

Filtra esta lista de estudios por sede, estatus, etc.

1. A Study of Proton Radiation Divided into Fewer Doses for Low Risk Prostate Cancer

   Rochester, Minn., Scottsdale/Phoenix, Ariz.

   The purpose of this study is to compare the effects (good and bad) on patients with prostate cancer by comparing the standard dose of radiation therapy (44 treatments over 8½-9 weeks) with a higher daily dose of radiation (5 treatments over 1-2 weeks) to see if the effects of the treatments are similar or better.

2. Pragmatic Randomized Trial of Proton vs. Photon Therapy for Patients With Non-Metastatic Breast Cancer: A Radiotherapy Comparative Effectiveness (RADCOMP) Consortium Trial

   Rochester, Minn.

   A pragmatic randomized clinical trial of patients with locally advanced breast cancer randomized to either proton or photon therapy and followed longitudinally for cardiovascular morbidity and mortality, health-related quality of life, and cancer control outcomes. Quality of life is the outcome measure for the estimated primary completion date of November, 2020."

3. Hypo-fractionated Proton Radiation Therapy With or Without Androgen Suppression for Intermediate Risk Prostate Cancer

   Scottsdale/Phoenix, Ariz.

   The purpose of this study is to compare the effects, good and/or bad of two treatment methods on subjects and their cancer. Proton beam radiation therapy is one of the treatments for men with prostate cancer who have localized disease. The benefit of the combination with androgen suppression is not completely understood. This study will compare the use of hypofraction proton therapy (28 treatments) alone to proton therapy with androgen suppression therapy.

4. Proton or Photon RT for Retroperitoneal Sarcomas

   Rochester, Minn.

   This research study is a Phase I clinical trial. Phase I clinical trials test the safety of an investigational intervention. Phase I studies also try to define the appropriate dose of the investigational therapy to use for further studies. "Investigational" means that the intervention is still being studied and that research doctors are trying to find out more about it.

   Retroperitoneal sarcomas are soft tissue tumors located at the far back of the abdomen. Typically, patients with retroperitoneal sarcomas either have surgery for the removal of their tumors alone, or have their tumors removed, followed by standard radiation therapy, or have pre-operative radiation followed by surgery. When conventional radiation therapy is delivered after surgery, it can damage normal tissue. In this study, you will undergo proton beam radiation therapy or IMRT before undergoing surgery for the removal of your tumor.

   Proton radiation and IMRT are FDA approved radiation delivery systems. Protons are tiny particles with positive charge that can be controlled to travel a certain distance and stop inside the body. In theory, this allows better control of where the radiation dose is delivered as compared to photons. Since proton radiation is more targeted, it may help to reduce unwanted side effects from radiation.

   In this study, a standard dose of radiation will be given to the majority of the tumor, while a simultaneously integrated boost of additional radiation will be given to certain areas of the tumor identified as higher risk. This means that a higher radiation dose will be given to the higher risk areas of the tumor.

   The purpose of this study is to determine the highest dose of radiation therapy with protons or IMRT that can be delivered safely in patients with retroperitoneal sarcomas and the effectiveness of proton beam radiation therapy as an intervention for patients with retroperitoneal sarcomas.

5. A Study of Proton Versus Photon Beam Radiotherapy in the Treatment of Unilateral Head and Neck Cancer

   Rochester, Minn.

   Compared to IMRT, PBRT is thought to give less radiation exposure to the surrounding healthy tissues. It is possible that side effect rates with PBRT will be lower or the same compared to IMRT, but this has not been well studied to date. Although both of these radiation therapies have been used in the past to treat head and neck cancer, this research study will compare the effects of these two different radiation treatment modalities with each other to see whether PBRT is better, the same or worse than IMRT.

6. Cardiac Function in Patients Undergoing Proton Beam or Photon Radiotherapy

   Rochester, Minn.

   The purpose of this study is to determine whether conventional or new (2D- speckle tracking echocardiography) parameters of left and right ventricular function are impaired during and at the end of proton beam or photon radiotherapy.

7. Proton Beam or Intensity-Modulated Radiation Therapy in Preserving Brain Function in Patients With IDH Mutant Grade II or III Glioma

   Rochester, Minn.

   This randomized phase II clinical trial studies the side effects and how well proton beam or intensity-modulated radiation therapy works in preserving brain function in patients with IDH mutant grade II or III glioma. Proton beam radiation therapy uses tiny charged particles to deliver radiation directly to the tumor and may cause less damage to normal tissue. Intensity-modulated or photon beam radiation therapy uses high-energy x-ray beams shaped to treat the tumor and may also cause less damage to normal tissue. Patients will be more likely to be randomized to proton beam radiation therapy. It is not yet known if proton beam radiation therapy is more effective than photon-based beam intensity-modulated radiation therapy in treating patients with glioma.

8. A Study to Compare Proton Therapy to Photon Radiation Therapy for Esophageal Cancer

   Eau Claire, Wis., Mankato, Minn., Rochester, Minn., Albert Lea, Minn., Scottsdale/Phoenix, Ariz.

   The purpose of this study is to evaluate how well proton beam radiation therapy compared with intensity modulated photon radiotherapy works in treating patients with stage I-IVA esophageal cancer. Proton beam radiation therapy uses a beam of protons (rather than x-rays) to send radiation inside the body to the tumor without damaging much of the healthy tissue around it. Intensity modulated photon radiotherapy uses high-energy x-rays to deliver radiation directly to the tumor without damaging much of the healthy tissue around it. It is not yet known whether proton beam therapy or intensity modulated photon radiotherapy will work better in treating patients with esophageal cancer.

9. A Registry for Children Treated with Proton Radiation Therapy

   Rochester, Minn.

   The purpose of the Pediatric Proton Consortium Registry (PPCR) is to enroll children who have been treated with proton radiation in the United States in order to describe the population that currently receives protons and better evaluate its benefits over other therapies. The data collected from this study will help facilitate research on proton beam radiation therapy and allow for collaborative research. The PPCR will collect demographic and clinical data which many centers that deliver proton radiation therapy already collect in routine operations.

10. Assessment of Predicted LET and Dosimetry in Relation to Treatment-Related Injury Following Proton Therapy for Primary Pediatric Central Nervous System, Base of Skull, and Malignancies

    Scottsdale/Phoenix, Ariz.

    The purpose of this study is to evaluate LET-based modeling as an early and accurate predictor for white-matter changes as identified on MRI and DTI in pediatric patients with primary central nervous system and skull base malignancies following proton beam therapy