Proton Radiotherapy for Patients With Non-Small Cell Lung Cancer (NSCLC)
The goal of this clinical research study is to learn if escalated/accelerated proton radiotherapy can improve the control of Non-Small Cell Lung Cancer (NSCLC) and decrease side effects. The safety of this treatment will also be studied.
To assess the therapeutic efficacy and toxicities of proton radiotherapy with escalated/accelerated dose for patients with medically inoperable stage I (T1-2, N0,M0) NSCLC.
- Improve 2 years progression free survival at the primary site, and
- reduce acute and chronic toxicity
- Improve disease specific survival at 2 years.
- Study the potential of pre- and post treatment PET/CT in predicting clinical outcome.
- Study the role of biomarkers in predicting therapeutic response and toxicities.
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Phase II Escalated/Accelerated Proton Radiotherapy for Inoperable Stage I (T1-T2, N0, M0) and Selected Stage II (T3N0M0) Non-Small Cell Lung Cancer (NSCLC)|
- Patient Toxicity with Escalated/Accelerated Proton Radiotherapy in Controlling NSCLC [ Time Frame: Weekly assessment during course of treatment (7-8 weeks) ]Adverse events graded according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events, version 3.0 (CTCAE 3.0).
- Local Control Rate [ Time Frame: 6 weeks after radiation therapy ]Local control at the primary site evaluated by a series of CT scans of the chest with contrast.
|Study Start Date:||May 2006|
|Estimated Primary Completion Date:||May 2018 (Final data collection date for primary outcome measure)|
Experimental: Proton Radiotherapy
Proton radiotherapy 87.5 CGE with 2.5 Gy/fraction for 35 treatments.
Radiation: Proton Radiotherapy
87.5 CGE with 2.5 Gy/fraction for 35 treatments
A proton beam is made up of charged particles that have a well-defined range of penetration into tissues. How deep it can penetrate is decided by both the beam's energy and the density of the tissue through which it passes. As the proton beam penetrates the body, the particles slow down, and the beam deposits its dose sharply near the end of its range. This is a phenomenon known as the Bragg peak. By adjusting the Bragg peak, the doctor can deliver a full, localized, uniform dose of energy to the treatment site while sparing the surrounding normal tissues. The proton beam is ideal for treatments where organ preservation is very important, such as lung cancer. Researchers know that standard photon radiotherapy is not able to adequately control tumor growth. But unfortunately, it is not possible to increase the dose of photon radiotherapy without also significantly increasing the side effects. In this study, using proton radiotherapy, researchers will increase the dose about 40% higher than standard photon radiotherapy.
Signing this consent form does not mean that you will be able to take part in this study. You will have "screening tests" to help the doctor decide if you are eligible to take part in this study. The following tests and procedures will be performed before starting treatment on this study:
Your complete medical history will be recorded. You will have a physical exam. Blood (about 4 teaspoons) will be drawn (within 30 days) for the routine blood tests You will have a computed tomography (CT) scan or positron emission tomography (PET/CT) scan of the chest, an MRI scan or CT of the brain, You will have a lung function test. Women who are able to have children must have a negative blood-pregnancy test. You will have a 4DCT.
Study Drug Administration If you are found to be eligible to take part in this study, you will receive 35 treatments of proton radiotherapy (radiotherapy does not have to start on a Monday but it cannot start on a Friday; usually Monday through Thursday for 7 to 8 weeks). During the treatment, you will lie still on a table for about 30-45 minutes per day in the same position. The proton machine will deliver the dose according to the plan designed by the physician and controlled by a computer. You will not feel, see, or smell anything during the proton beam delivery.
During the treatment, you will be seen by a doctor and research nurse once a week to evaluate possible side effects. You will have a physical exam and you will have a medical history.
You will be taken off study early if the disease gets worse or intolerable side effects occur. After finishing the treatment, follow up is recommended 6 weeks after completion of radiotherapy, required every 3 months (+/-1 month) for two years, then every (+/-1 month) 6 months for three years, and then once a year for 2 years. You will have imaging tests (chest CT or PET scan), lung function test and routine blood tests (about 2 teaspoons) at the follow-up visits. You are allowed to have further chemotherapy or other treatment while you are still in the follow-up on this study. You should discuss chemotherapy with your medical oncologist.
This is an investigational study. Proton radiotherapy is FDA approved for the treatment of lung cancer treatment. Up to 40 patients will take part in this study. All will be enrolled at M. D. Anderson.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00495040
|United States, Massachusetts|
|Massachusetts General Hospital|
|Boston, Massachusetts, United States, 02114|
|United States, Texas|
|University of Texas MD Anderson Cancer Center|
|Houston, Texas, United States, 77030|
|Principal Investigator:||Joe Y. Chang, MD, PhD||M.D. Anderson Cancer Center|