Monday 8 September 2008

Randomized Phase 2 Study Of IMC-A12 And IMC-1121B For Advanced Prostate Cancer Commences Patient Enrollment

�ImClone Systems Incorporated (NASDAQ: IMCL), a global leader in the development and commercialization of novel antibodies to treat cancer, today announced that its disease-directed Phase 2 clinical trial in patients with advance prostate crab randomized to treatment with either IMC-A12 or IMC-1121B plus mitoxantrone and deltasone has commenced patient enrollment. IMC-A12 and IMC-1121B are two sanative candidates in ImClone's proprietary receptor-targeted antibody pipeline. IMC-A12 is ImClone's fully human, IgG1 anti-insulin-like growth factor-1 receptor (IGF-1R) monoclonal antibody and IMC-1121B is its fully human, IgG1 anti-vascular growth divisor receptor-2 (VEGFR-2) monoclonal antibody.


This multicenter, randomized open-label Phase 2 single-arm study is enrolling patients with metastatic androgen-independent prostate cancer the Crab who take developed disease progression during or inside 60 years of receiving docetaxel-based chemotherapy or demonstrated intolerance to docetaxel-based therapy. A total of 132 patients are expected to be enrolled at various centers, including those that participate in the Department of Defense's Prostate Cancer Consortium. This Phase 2 study is designed to evaluate the efficacy and safety of both IMC-A12 and IMC-1121B combined with mitoxantrone and prednisone. IMC-A12 and IMC-1121B are administered weekly, whereas mitoxantrone is administered every three weeks with oral daily liquid Pred.


"We are very proud of about