TY - JOUR
T1 - Phase I trial of the proteasome inhibitor bortezomib in patients with advanced solid tumors with observations in androgen-independent prostate cancer
AU - Papandreou, Christos N.
AU - Daliani, Danai D.
AU - Nix, Darrell
AU - Yang, Hong
AU - Madden, Timothy
AU - Wang, Xuemei
AU - Pien, Christine S.
AU - Millikan, Randall E.
AU - Tu, Shi Ming
AU - Pagliaro, Lance
AU - Kim, Jeri
AU - Adams, Julian
AU - Elliott, Peter
AU - Esseltine, Dixie
AU - Petrusich, Alexandria
AU - Dieringer, Pauline
AU - Perez, Cherie
AU - Logothetis, Christopher J.
PY - 2004
Y1 - 2004
N2 - Purpose: To determine the dose-limiting toxicity and maximum-tolerated dose of the proteasome inhibitor bortezomib administered intravenously weekly for 4 every 5 weeks; to determine the bortezomib pharmacokinetics and pharmacodynamics using plasma levels and an assay for 20S proteasome inhibition (PI) in whole blood; to correlate toxicity with bortezomib dose and degree of 20S PI; and to conduct a preliminary determination of the antitumor activity of bortezomib in patients with androgen independent prostate cancer (AIPCa). Patients and Methods: Fifty-three patients (48 with AIPCa) received 128 cycles of bortezomib in doses ranging from 0.13 to 2.0 mg/m2/dose, utilizing a careful escalation scheme with a continuous reassessment method. Pharmacokinetic and pharmacodynamic studies were performed in 24 patients (at 1.45 to 2.0 mg/m 2). Results: A dose-related 20S PI was seen, with dose-limiting toxicity at 2.0 mg/m2 (diarrhea, hypotension) occurring at an average 1-hour post-dose of ≥ 75% 20S PI. Other side effects were fatigue, hypertension, constipation, nausea, and vomiting. No relationship was seen between body-surface area and bortezomib clearance over the narrow dose range tested. There was evidence of biologic activity (decline in serum prostate-specific antigen and interleukin-6 levels) at & 50% 20S PI. Two patients with AIPCa had prostate-specific antigen response and two patients had partial response in lymph nodes. Conclusion: The maximum-tolerated dose and recommended phase II dose of bortezomib in this schedule is 1.6 mg/m 2. Biologic activity (inhibition of nuclear factor-kappa B-related markers) and antitumor activity is seen in AIPCa at tolerated doses of bortezomib. This agent should be further explored with chemotherapy agents in advanced prostate cancer.
AB - Purpose: To determine the dose-limiting toxicity and maximum-tolerated dose of the proteasome inhibitor bortezomib administered intravenously weekly for 4 every 5 weeks; to determine the bortezomib pharmacokinetics and pharmacodynamics using plasma levels and an assay for 20S proteasome inhibition (PI) in whole blood; to correlate toxicity with bortezomib dose and degree of 20S PI; and to conduct a preliminary determination of the antitumor activity of bortezomib in patients with androgen independent prostate cancer (AIPCa). Patients and Methods: Fifty-three patients (48 with AIPCa) received 128 cycles of bortezomib in doses ranging from 0.13 to 2.0 mg/m2/dose, utilizing a careful escalation scheme with a continuous reassessment method. Pharmacokinetic and pharmacodynamic studies were performed in 24 patients (at 1.45 to 2.0 mg/m 2). Results: A dose-related 20S PI was seen, with dose-limiting toxicity at 2.0 mg/m2 (diarrhea, hypotension) occurring at an average 1-hour post-dose of ≥ 75% 20S PI. Other side effects were fatigue, hypertension, constipation, nausea, and vomiting. No relationship was seen between body-surface area and bortezomib clearance over the narrow dose range tested. There was evidence of biologic activity (decline in serum prostate-specific antigen and interleukin-6 levels) at & 50% 20S PI. Two patients with AIPCa had prostate-specific antigen response and two patients had partial response in lymph nodes. Conclusion: The maximum-tolerated dose and recommended phase II dose of bortezomib in this schedule is 1.6 mg/m 2. Biologic activity (inhibition of nuclear factor-kappa B-related markers) and antitumor activity is seen in AIPCa at tolerated doses of bortezomib. This agent should be further explored with chemotherapy agents in advanced prostate cancer.
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U2 - 10.1200/JCO.2004.02.106
DO - 10.1200/JCO.2004.02.106
M3 - Article
C2 - 15169797
AN - SCOPUS:2942692143
SN - 0732-183X
VL - 22
SP - 2108
EP - 2121
JO - Journal of Clinical Oncology
JF - Journal of Clinical Oncology
IS - 11
ER -