Phase II trial of docetaxel/capecitabine in hormone-refractory prostate cancer.
BACKGROUND
Docetaxel is the most active single agent in the treatment of hormone-refractory prostate cancer (HRPC). Because of the preclinical and clinical evidence of synergy of capecitabine and docetaxel, it was hypothesized that this combination would be active and tolerable in HRPC.


METHODS
Patients received docetaxel 60 mg/m2 intravenously over 60 minutes on day 1 of each 21-day cycle and capecitabine 1000 mg/m2 administered orally twice daily on days 1-14 of each cycle for a maximum of 8 cycles or until disease progression or intolerable toxicity. Seventy-seven patients were enrolled at 43 US Oncology sites. The median age was 69.3 years (range, 48-86 years); 86% were white, and the Eastern Cooperative Oncology Group performance status scores of 0 and 1 were 49% and 51% respectively. Sixty-nine (90%) patients were evaluated for prostate-specific antigen response.


RESULTS
Overall, 41% of patients had a decreased prostate specific antigen level > or = 50%. There were 4 complete responses (6%), 24 partial responses (35%), 29 incidences of stable disease (43%), and 11 incidences of progressive disease (16%). Nine patients has stable disease > or = 6 months and the clinical benefit rate was 54%. The median time to response was 1.5 months (range, 1-16.9 months). The estimated survival at 12 and 24 months (range, < 1-27 months). There were no treatment-related deaths. Grade 3/4 toxicities included neutropenia (50%), leukopenia (22%), hand-foot syndrome (17%), fatigue (11%), and nausea (11%).


CONCLUSIONS
Docetaxel/capcitabine is an active and tolerable combination in HRPC. Toxicity was acceptable and anticipated. Response rate and survival are comparable with other docetaxel combinations.
Kolodziej
Michael
M
US Oncology Research Inc, Houston, TX, USA. michael.kolodziej@usoncology.com
Neubauer
Marcus A
MA
Rousey
Steven R
SR
Pluenneke
Robert E
RE
Perrine
George
G
Mull
Stephanie
S
Boehm
Kristi A
KA
Ilegbodu
Des
D
Asmar
Lina
L
D000230:Adenocarcinoma / Q000175:diagnosis / Q000188:drug therapy*; D000368:Aged; D000369:Aged, 80 and over; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D000069287:Capecitabine; D003841:Deoxycytidine / Q000008:administration & dosage / Q000031:analogs & derivatives; D000077143:Docetaxel; D005472:Fluorouracil / Q000008:administration & dosage / Q000031:analogs & derivatives; D006801:Humans; D008297:Male; D020714:Maximum Tolerated Dose; D008875:Middle Aged; D009376:Neoplasms, Hormone-Dependent / Q000175:diagnosis / Q000188:drug therapy*; D017430:Prostate-Specific Antigen / Q000097:blood; D011471:Prostatic Neoplasms / Q000175:diagnosis / Q000188:drug therapy*; D011788:Quality of Life; D015996:Survival Rate; D043823:Taxoids / Q000008:administration & dosage; D016896:Treatment Outcome
D043823:Taxoids; D003841:Deoxycytidine; D000077143:Docetaxel; D000069287:Capecitabine; D017430:Prostate-Specific Antigen; D005472:Fluorouracil