Abbott to Present Data on Novel Cancer Treatments at American Society of Clinical Oncology Annu...(ested to study Abbott'sBcl-2 family prot...),Health

Date:5/15/2008

ested to study Abbott's Bcl-2 family protein inhibitors, which is an indication of the potential value that ABT-263 might bring to the cancer research field," said John Leonard, M.D., senior vice president, Pharmaceuticals, Research and Development, Abbott. "We have built an early stage pipeline that targets the processes that cancers need to survive and we're looking forward to advancing our work in this area."

Presentation highlights include:

-- A Phase I Study Evaluating the Safety, Pharmacokinetics, and Efficacy

of ABT-263 in Subjects With Refractory or Relapsed Lymphoid

Malignancies

-- Reduction in Platelet Counts as a Mechanistic Biomarker and Guide for

Adaptive Dose-escalation in Phase I Studies of the Bcl-2 Family

Inhibitor ABT-263

-- Dynamic Contrast Enhanced MRI (DCE MRI) for Assessment of Effects of

Anti-Angiogenic Therapy: Comparison of the Transfer Constant (Ktrans)

to Blood Flow and Permeability Derived by a Distributed Parameter

Model

-- Relationship of Dose of ABT-869 on Biomarkers of Angiogenesis and

Their Correlation With Pharmacodynamic (PD) Outcome

Study Background and Results

ABT-263

Thirty patients with refractory or relapsed lymphoid malignancies have been enrolled in an ongoing Phase I study evaluating safety, pharmacokinetics and efficacy. Subjects received ABT-263 orally once daily for 14 consecutive days followed by seven days off drug in each cycle of therapy. Results showed that ABT-263 had an acceptable side-effect profile at the seven-dose (10, 20, 40, 80, 160, 225 and 315 mg) cohort levels and showed evidence of anti-tumor activity. Researchers observed 99 percent and 36 percent tumor reduction in two patients with bulky chronic lymphocytic leukemia (CLL). Another patient with bulky CLL/small lymphocytic lymphoma (SLL) experienced a 75 percent reduction and a patient with follicular lymphom
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SOURCE Abbott Copyright©2008 PR Newswire. All rights reserved

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