Ultrahypofractionated Low-Dose Total Skin Electron Beam in Advanced-Stage Mycosis Fungoides and Sézary Syndrome
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Ultrahypofractionated Low-Dose Total Skin Electron Beam in Advanced-Stage Mycosis Fungoides and Sézary Syndrome. / Elsayad, Khaled; Weishaupt, Carsten; Moustakis, Christos; Danzer, Moritz Fabian; Müller, Elisa Christina; Rolf, Daniel; Stranzenbach, Rene; Livingstone, Elisabeth; Booken, Nina; Stadler, Rudolf; Eich, Hans Theodor.
in: INT J RADIAT ONCOL, Jahrgang 117, Nr. 1, 01.09.2023, S. 164-170.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Ultrahypofractionated Low-Dose Total Skin Electron Beam in Advanced-Stage Mycosis Fungoides and Sézary Syndrome
AU - Elsayad, Khaled
AU - Weishaupt, Carsten
AU - Moustakis, Christos
AU - Danzer, Moritz Fabian
AU - Müller, Elisa Christina
AU - Rolf, Daniel
AU - Stranzenbach, Rene
AU - Livingstone, Elisabeth
AU - Booken, Nina
AU - Stadler, Rudolf
AU - Eich, Hans Theodor
N1 - Copyright © 2023 Elsevier Inc. All rights reserved.
PY - 2023/9/1
Y1 - 2023/9/1
N2 - PURPOSE: The aim of this study was to assess the safety and efficacy of an ultrahypofractionated low-dose total skin electron beam therapy (TSEBT) regimen in patients with advanced mycosis fungoides (MF) or Sézary syndrome (SS).METHODS AND MATERIALS: In this multicenter observational study from 5 German centers, 18 total patients with MF or SS underwent TSEBT with a total dose of 8 Gy in 2 fractions. The primary endpoint was the overall response rate.RESULTS: Fifteen of 18 patients with stage IIB-IV MF or SS were heavily pretreated with a median of 4 prior systemic therapies. The overall response rate was 88.9% (95% confidence interval [CI], 65.3-98.6), with 3 complete responses (16.9%; 95% CI, 3.6-41.4). At a median follow-up period of 13 months, the median time to next treatment (TTNT) was 12 months (95% CI, 8.2-15.8), and the median progression-free survival was 8 months (95% CI, 2-14). A significant reduction in the modified severity-weighted assessment tool, total Skindex-29 score (Bonferroni-corrected P < .005), and all subdomains (Bonferroni-corrected P < .05) was observed after TSEBT. Half of the irradiated patients (n = 9) developed grade 2 acute and subacute toxicities. One patient had confirmed grade 3 acute toxicity. Chronic grade 1 toxicity has been observed in 33% of patients. Patients with erythroderma/SS or prior radiation therapy appear at higher risk of skin toxicities.CONCLUSIONS: TSEBT with 8 Gy in 2 fractions achieves good disease control and symptom palliation with acceptable toxicity, greater convenience, and fewer hospital visits.
AB - PURPOSE: The aim of this study was to assess the safety and efficacy of an ultrahypofractionated low-dose total skin electron beam therapy (TSEBT) regimen in patients with advanced mycosis fungoides (MF) or Sézary syndrome (SS).METHODS AND MATERIALS: In this multicenter observational study from 5 German centers, 18 total patients with MF or SS underwent TSEBT with a total dose of 8 Gy in 2 fractions. The primary endpoint was the overall response rate.RESULTS: Fifteen of 18 patients with stage IIB-IV MF or SS were heavily pretreated with a median of 4 prior systemic therapies. The overall response rate was 88.9% (95% confidence interval [CI], 65.3-98.6), with 3 complete responses (16.9%; 95% CI, 3.6-41.4). At a median follow-up period of 13 months, the median time to next treatment (TTNT) was 12 months (95% CI, 8.2-15.8), and the median progression-free survival was 8 months (95% CI, 2-14). A significant reduction in the modified severity-weighted assessment tool, total Skindex-29 score (Bonferroni-corrected P < .005), and all subdomains (Bonferroni-corrected P < .05) was observed after TSEBT. Half of the irradiated patients (n = 9) developed grade 2 acute and subacute toxicities. One patient had confirmed grade 3 acute toxicity. Chronic grade 1 toxicity has been observed in 33% of patients. Patients with erythroderma/SS or prior radiation therapy appear at higher risk of skin toxicities.CONCLUSIONS: TSEBT with 8 Gy in 2 fractions achieves good disease control and symptom palliation with acceptable toxicity, greater convenience, and fewer hospital visits.
KW - Humans
KW - Sezary Syndrome/radiotherapy
KW - Skin Neoplasms/radiotherapy
KW - Electrons
KW - Mycosis Fungoides/radiotherapy
KW - Skin
U2 - 10.1016/j.ijrobp.2023.02.052
DO - 10.1016/j.ijrobp.2023.02.052
M3 - SCORING: Journal article
C2 - 36893819
VL - 117
SP - 164
EP - 170
JO - INT J RADIAT ONCOL
JF - INT J RADIAT ONCOL
SN - 0360-3016
IS - 1
ER -