Head and Neck Neoplasm — Masks Against Surface-Scanning for Radiation Therapy Immobilisation in Head and Neck Cancer (MASSC)
Citation(s)
Ali I, Matthiesen C, Algan O, Thompson S, Bogardus C, Herman T, Ahmad S Quantitative evaluation of increase in surface dose by immobilization thermoplastic masks and superficial dosimetry using Gafchromic EBT film and Monte Carlo calculations. J Xray Sci Technol. 2010;18(3):319-26. doi: 10.3233/XST-2010-0263.
Siegel R, Ma J, Zou Z, Jemal A Cancer statistics, 2014. CA Cancer J Clin. 2014 Jan-Feb;64(1):9-29. doi: 10.3322/caac.21208. Epub 2014 Jan 7. Erratum in: CA Cancer J Clin. 2014 Sep-Oct;64(5):364.
Stieler F, Wenz F, Shi M, Lohr F A novel surface imaging system for patient positioning and surveillance during radiotherapy. A phantom study and clinical evaluation. Strahlenther Onkol. 2013 Nov;189(11):938-44. doi: 10.1007/s00066-013-0441-z. Epub 2013 Sep 27.
van Herk M Errors and margins in radiotherapy. Semin Radiat Oncol. 2004 Jan;14(1):52-64. Review.
Wiant D, Squire S, Liu H, Maurer J, Lane Hayes T, Sintay B A prospective evaluation of open face masks for head and neck radiation therapy. Pract Radiat Oncol. 2016 Nov - Dec;6(6):e259-e267. doi: 10.1016/j.prro.2016.02.003. Epub 2016 Feb 13.
Zhao B, Maquilan G, Jiang S, Schwartz DL Minimal mask immobilization with optical surface guidance for head and neck radiotherapy. J Appl Clin Med Phys. 2018 Jan;19(1):17-24. doi: 10.1002/acm2.12211. Epub 2017 Nov 9.
Masks Against Surface-Scanning for Radiation Therapy Immobilisation in Head and Neck Cancer (MASSC Study)
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
