Toxicity of combined treatment of adjuvant irradiation and interferon a2b in high-risk melanoma patients
Toxicity of combined treatment of adjuvant irradiation and interferon a2b in high-risk melanoma patients
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DOI:
10.1097/cmr.0b013e3282c3a6ed
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发表时间:
2007-10-01
影响因子:
2.2
通讯作者:
Castel, Teresa
中科院分区:
文献类型:
--
作者:
Conill, Carlos;Jorcano, Sandra;Castel, Teresa
Surgically resected stage III melanoma patients commonly receive adjuvant therapy with interferon (IFN) 2 alpha b. For those patients with high-risk features of draining node recurrence, radiation therapy can also be considered as a treatment option. The purpose of this retrospective study was to assess the efficacy and radiation -related toxicity of this combined therapy. Eighteen patients receiving adjuvant IFN alpha 2b therapy during radiation therapy, or within 1 month of its completion, were reviewed retrospectively and analysed for outcome. Radiation was delivered at 600cGy dose per fraction, in 16 out of 18 patients, twice a week, and at 200 cGy dose per fraction in two patients five times a week. Total radiation dose and number of fractions were as follows: 30 Gy/5 fir (n = 8), 36 Gy/6 f r (n = 8) and 50 Gy/25fr (n=2). The percentage of disease-free patients, with no local recurrence, at 3 years was 88%. In 10 patients, IFNa2b was administered concurrently with radiotherapy; in three, within 30 days before or after radiation; and in five, more than 30 days after radiation. All the patients experienced acute skin reactions, grade I on the Radiation Therapy Oncology Group (RTOG) scale. Late radiation-related toxicity was seen in one patient with grade III (RTOG) skin reaction and two with grade IV (RTOG) radiation-induced myelitis. Concurrent use of adjuvant radiotherapy and IFN alpha 2b might enhance radiation-induced toxicity, and special care should be taken when the spinal cord is included in the radiation field.