Late toxicity following conventional radiotherapy for prostate cancer: analysis of the EORTC trial 22863.
Late toxicity and other serious adverse events (SAE) were analysed in the European Organisation for Research and Treatment of Cancer (EORTC) trial 22863. The study evaluated the value of adjuvant endocrine treatment for locally advanced prostate cancer treated with radiotherapy. From 1987 to 1995, 415 patients were randomised. There was long-term toxicity information for 377 patients (91%). Median age was 70 years (range 50-80 years). Median follow-up for late toxicity was 42 months (range 3-136 months). Toxicity was graded according to a modified Radiotherapy and Oncology Group (RTOG) scale. Other late SAE, that was not classified as severe treatment toxicity, but were still life-threatening, were also assessed. There were 72 patients with grade 2, 10 patients with grade 3 and 4 patients with grade 4 toxicity. There were 20 patients with other late SAE, who were grouped according to their relationship to treatment; likely related (n = 1), unrelated (n = 7) and not assessable (n = 12). Although four treatment-related deaths (1%) occurred, grade 3 or 4 late complications were less than 5%.
Ataman
Fatma
F
EORTC Data Center, Radiotherapy Group, Avenue E. Mounier 83, bte 11, B-1200 Brussels, Belgium. fat@eortc.be
Zurlo
Alfredo
A
Artignan
Xavier
X
van Tienhoven
Geertjan
G
Blank
Leo E
LE
Warde
Padraig
P
Dubois
Jean B
JB
Jeanneret
Wendy
W
Keuppens
Frans
F
Bernier
Jacques
J
Kuten
Abraham
A
Collette
Laurence
L
Pierart
Marianne
M
Bolla
Michel
M
D000368:Aged; D000369:Aged, 80 and over; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011471:Prostatic Neoplasms / Q000532:radiotherapy*; D011832:Radiation Injuries / Q000150:complications*; D011878:Radiotherapy / Q000009:adverse effects; D013997:Time Factors