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Proton‐based radiotherapy for unresectable or incompletely resected osteosarcoma
Cancer, 2011-10, Vol.117 (19), p.4522-4530
Ciernik, I. Frank
Niemierko, Andrzej
Harmon, David C.
Kobayashi, Wendy
Chen, Yen‐Lin
Yock, Torunn I.
Ebb, David H.
Choy, Edwin
Raskin, Kevin A.
Liebsch, Norbert
Hornicek, Francis J.
DeLaney, Thomas F.
2011
Details
Autor(en) / Beteiligte
Ciernik, I. Frank
Niemierko, Andrzej
Harmon, David C.
Kobayashi, Wendy
Chen, Yen‐Lin
Yock, Torunn I.
Ebb, David H.
Choy, Edwin
Raskin, Kevin A.
Liebsch, Norbert
Hornicek, Francis J.
DeLaney, Thomas F.
Titel
Proton‐based radiotherapy for unresectable or incompletely resected osteosarcoma
Ist Teil von
Cancer, 2011-10, Vol.117 (19), p.4522-4530
Ort / Verlag
Hoboken: Wiley Subscription Services, Inc., A Wiley Company
Erscheinungsjahr
2011
Link zum Volltext
Quelle
MEDLINE
Beschreibungen/Notizen
BACKGROUND: A study was undertaken to assess clinical outcome and the role of proton therapy for local control of osteosarcoma (OSA). METHODS: All patients who received proton therapy or mixed photon‐proton radiotherapy from 1983 to 2009 at the Massachusetts General Hospital were reviewed. Criteria for proton therapy were the need for high dose in the context of highly conformal radiotherapy of unresected or partially resected OSA, positive postoperative margins, postoperative imaging studies with macroscopic disease, or incomplete resection as defined by the surgeon. The primary endpoint was local control of the site treated; secondary endpoints were disease‐free survival (DFS), overall survival (OS), long‐term toxicity, and prognostic factors associated with clinical outcome. RESULTS: Fifty‐five patients with a median age of 29 years (range, 2‐76 years) were offered proton therapy. The mean dose was 68.4 gray (Gy; standard deviation, 5.4 Gy). Of the total dose, 58.2% (range, 11%‐100%) was delivered with protons. Local control after 3 and 5 years was 82% and 72%, respectively. The distant failure rate was 26% after 3 and 5 years. The 5‐year DFS was 65%, and the 5‐year OS was 67%. The extent of surgical resection did not correlate with outcome. Risk factors for local failure were ≥2 grade disease (P < .0001) and total treatment length (P = .008). Grade 3 to 4 late toxicity was seen in 30.1 % of patients. One patient died from treatment‐associated acute lymphocytic leukemia, and 1 from secondary carcinoma of the maxilla. CONCLUSIONS: Proton therapy to deliver high radiotherapy doses allows locally curative treatment for some patients with unresectable or incompletely resected OSA. Cancer 2011;. © 2011 American Cancer Society. The cohort of Massachusetts General Hospital patients with inoperable or incompletely resectable osteosarcoma treated with proton or combined photon/proton therapy was reviewed. Local control could be achieved in >70% of cases with acceptable toxicity in most patients.
Sprache
Englisch
Identifikatoren
ISSN: 0008-543X, 1097-0142
eISSN: 1097-0142
DOI: 10.1002/cncr.26037
Titel-ID: cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_3716000
Format
–
Schlagworte
Adolescent
,
Adult
,
Aged
,
Antineoplastic Agents - therapeutic use
,
Biological and medical sciences
,
Bone Neoplasms - drug therapy
,
Bone Neoplasms - radiotherapy
,
Bone Neoplasms - surgery
,
Child
,
Child, Preschool
,
combined modality
,
Combined Modality Therapy
,
Diseases of the osteoarticular system
,
Female
,
Follow-Up Studies
,
Humans
,
Male
,
Medical sciences
,
Middle Aged
,
osteosarcoma
,
Osteosarcoma - drug therapy
,
Osteosarcoma - radiotherapy
,
Osteosarcoma - surgery
,
particle therapy
,
Prognosis
,
Proton Therapy
,
radiotherapy
,
Radiotherapy, Conformal
,
sarcoma
,
Survival Rate
,
Tumors
,
Tumors of striated muscle and skeleton
,
Young Adult
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