Improving head and neck cancer treatment

Source: www.uc.edu Author: Tim Tedeschi, University of Cincinnati News When the medical community finds a treatment for a particular cancer, the work doesn’t stop. Researchers continue to study how treatments can be improved in order to reduce side effects and the possibility of the cancer recurring. University of Cincinnati researchers are leading a new clinical trial to examine if the combination of a more localized radiation treatment and immunotherapy can be a better treatment for patients with recurrent head and neck cancer. Chad Zender, MD, said head and neck cancers include cancers of the tongue, throat, tonsil and larynx, and about 30%-50% of patients treated through surgery and radiation will have their cancer return. Patients often then undergo additional surgery and/or radiation treatments, which can lead to side effects like problems with speech and swallowing. “The quality of life is significantly less in the patients that require [subsequent] surgery and then radiation with or without chemo,” said Zender, professor in the Department of Otolaryngology in UC’s College of Medicine, director of head and neck surgery and principal investigator for the new trial. Precision radiation Zender said the trial will test a more localized radiation delivery method through a radioactive seed, about the size of a grain of rice that emits an intense amount of radiation to the cancer and only minimal radiation outside to other areas. The radioactive Cesium-131 seeds are implanted directly into the operative site during surgery. This approach in early studies appears to give more localized radiation [...]

2022-02-03T10:44:13-07:00February, 2022|Oral Cancer News|

IsoRay announces Cornell Medical Center adopts Cesium-131 to treat head and neck cancer

Source: www.businesswire.com Author: press release IsoRay, Inc. (Amex: ISR) announced today that on August 5, 2009, Dr. Bhupesh Parashar from the Department of Radiation Oncology, Dr. David Kutler of the Department of Otorhinolaryngology, and Dr. Jason Spector of the Department of Plastic Surgery at Weill Cornell Medical Center performed the world’s first Cesium-131 implant for a recurrent head and neck cancer (buccal mucosa). The implant was performed using Vicryl®-embedded seeds on a 66-year-old patient who had received a full course of radiation to the head and neck several years ago. Cesium-131 was chosen for its short half-life and the higher dose rate. The patient tolerated the implant procedure well, and has had no adverse effects that can be attributed to the use of Cs-131 seeds. There is no evidence of cancer recurrence to date. Dr. Parashar stated, “We are very pleased to date with this patient’s progress. Having Cs-131 with its combination of short half-life and high energy gave us another option for treating this patient’s recurring buccal mucosa cancer.” Dr. Dattatreyudu Nori, the Chairman of the Department of Radiation Oncology at Weill Cornell Medical Center, and a pioneer in the field of brachytherapy, performed some of the initial Cesium-131 prostate implants in 2005. Until now clinical experience with Cesium-131 has been focused on prostate cancer and ocular melanoma. However, Cesium-131 has been cleared by the FDA for use in the treatment of malignant disease (e.g., prostate, ocular melanoma, head and neck, lung, brain, breast, etc.) and may be used [...]

2009-09-29T04:12:27-07:00September, 2009|Oral Cancer News|

IsoRay announces first head and neck cancer treated with Cesium-131

Source: www.businesswire.com Author: press release IsoRay, Inc. announced today that on June 4, 2009, Dr. Karen Pitman of the Department of Otolaryngology and Communicative Sciences and Dr. Michael Baird of the Radiation Oncology Department of the University of Mississippi Medical Center performed the world’s first head and neck permanent seed Cesium-131 implant. The implant was performed using Vicryl-embedded seeds in the tonsilar area in a patient who had locally failed IMRT external beam radiation and chemotherapy. Drs. Pitman and Baird chose Cesium-131 for this implant based on its high energy (30.4 kev) and short half-life (9.7 days). This combination allowed them to achieve a high dose of radiation to the recurrent disease, while limiting the dose to the previously heavily irradiated tissues of the neck. Cesium’s short half-life reduced the duration of side effects and the need for radiation protection. Dr. Baird stated, “Although too early to determine the overall efficacy of treatment, the patient’s tolerance to the implant has been good. His acute reactions peaked at three weeks, and have resolved by six weeks. His clinical reaction in the implant volume corresponds well to the post implant dosimetry.” Until now clinical experience with Cesium-131 has been focused on prostate cancer and ocular melanoma. However, Cesium-131 has been cleared by the FDA for use in the treatment of malignant disease (e.g., prostate, ocular melanoma, head and neck, lung, brain, breast, etc.) and may be used in surface, interstitial, and intracavitary applications for tumors with known radiosensitivity. Dwight Babcock, IsoRay's CEO, [...]

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