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- W2602457837 abstract "5122 Background: EBRT with ADT (4 mos to 2–3 yrs) is standard treatment for high risk PC. In this trial, we evaluated weekly P given concurrently with EBRT and ADT in high risk PC. Methods: For pts undergoing RP, high risk was defined as: pT3 and/or pN+, M0, and/or rising PSA (> 0.5) post RP. For pts not undergoing RP (i.e. locally advanced PC [LAPC]) high risk included: cT2b-4N0, N+, M0; bGS 8–10; bGS ≥ 7 + PSA ≥ 10 but ≤ 150; and/or PSA ≥ 20 but ≤ 150. Treatment included ADT (4 or 24 mos, preplanned based on clinical presentation), P (40, 50, or 60 mg/m2/wk) x 7 with EBRT, and whole pelvis EBRT 45 Gy with 19.8 Gy boost (total 64.8 Gy) to prostate bed in RP pts and 25.2 Gy boost (total 70.2 Gy) to prostate in LAPC pts. Results: Between October 1999 and December 2006, 59 pts (29 W, 28 AA) were enrolled (n = 29 LAPC, n = 30 RP); median age 67 yrs, median PSA at trial entry 5.9 (27.5 LAPC, 1.6 RP), median GS 8. Pts were enrolled at different weekly doses of P: 40 mg/m2 n = 10 pts; 50 mg/m2 n = 31 pts; 60 mg/m2 n = 18 pts. ADT for 4 mos was given in 29 pts and for 24 mos in 30 pts. At 40 mg/m2 67/70 (96%), 50 mg/m2 202/217 (93%), and 60 mg/m2 98/126 (78%) planned doses of P were given. There were no acute grade 4 toxicities. Most common grade 3 toxicities were diarrhea 15%, urinary urgency or incontinence 10%, tenesmus 5%, and leukopenia 3%. Median duration of f/u was 75.3 mos, OS 78%, biochemical progression 24/59 (41%) pts, clinical progression 11/59 (19%) pts. Time to biochemical progression was similar between RP vs. LAPC (p = 0.17), between ADT 4 mos vs. 24 mos (p = 0.61), and between AA vs. W (p = 0.54). Conclusions: This trial establishes the feasibility of tri-modality therapy with ADT, EBRT and weekly paclitaxel in high risk PC, both in RP pts and in LAPC pts with intact prostate glands. The maximum tolerated dose of paclitaxel is 50 mg/m2 /wk when given weekly with concurrent radiation to the pelvis and hormone ablation. No significant financial relationships to disclose." @default.
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- W2602457837 date "2009-05-20" @default.
- W2602457837 modified "2023-10-16" @default.
- W2602457837 title "Weekly paclitaxel (P) with concurrent external beam radiation (EBRT) and androgen deprivation therapy (ADT) in high-risk prostate cancer (PC) patients with or without prior prostatectomy (RP)" @default.
- W2602457837 doi "https://doi.org/10.1200/jco.2009.27.15_suppl.5122" @default.
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