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April 6, 2014
13:46 EDTPFEPfizer's palbociclib significantly prolonged PFS in metastatic breast cancer
Pfizer announced detailed results from the PALOMA-1 study, a randomized Phase 2 study of palbociclib, PD-0332991, in combination with letrozole. PALOMA-1 achieved its primary endpoint by significantly prolonging progression-free survival, PFS, compared with letrozole alone in post-menopausal women with estrogen receptor positive, ER+, human epidermal growth factor receptor 2 negative, HER2-, locally advanced or metastatic breast cancer. For women treated with the combination of palbociclib plus letrozole, the median PFS was 20.2 months, a statistically significant improvement compared to the 10.2 months of PFS in women who received letrozole alone. These data will be presented by Dr. Richard S. Finn, associate professor of medicine at University of California, Los Angeles at the American Association of Cancer Research (AACR) Annual Meeting 2014 in San Diego. "These data demonstrate the potential of palbociclib to be a major advance in the treatment of women with this type of advanced breast cancer," said Dr. Mace Rothenberg, senior vice president of Clinical Development and Medical Affairs and chief medical officer for Pfizer Oncology. "We are proud to be at the forefront of research and development with respect to this promising new class of investigational anticancer agents and have initiated a broad clinical development program for palbociclib that includes breast and non-breast cancers." Final results for the secondary efficacy endpoints of duration of treatment and clinical benefit rate demonstrated superiority in the palbociclib plus letrozole arm compared to the letrozole-only arm. Per the PALOMA-1 trial protocol, an initial assessment of overall survival, OS, a secondary endpoint, was also performed. Based on the events at the time of the assessment, a median OS of 37.5 months was observed in the combination arm versus 33.3 months for those who received letrozole alone, a difference of 4.2 months. This OS observation at the time of final PFS analysis was not statistically significant. A follow-up OS analysis will be conducted following the accrual of additional events.
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July 22, 2014
16:18 EDTPFEPuma Biotech now responsible for R&D expenses associated with legacy trials
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July 17, 2014
08:08 EDTPFEBristol-Myers, Pfizer announce enrollment in Phase IV EMANATE trial for Eliquis
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July 16, 2014
10:36 EDTPFETreasury calls on Congress to halt inversion deals
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09:27 EDTPFEPfizer to acquire InnoPharma for upfront cash payment of $225M
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07:59 EDTPFETreasury Secretary urges Congress to take action on tax inversions
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07:04 EDTPFEPfizer says primary endpoint met in Phase 3 study of BeneFIX
Pfizer announced the positive results of a Phase 3 study comparing a prophylaxis regimen of BeneFIX Coagulation Factor IX 100 IU/kg once-weekly to on-demand treatment in people with moderately severe to severe hemophilia B. The top-line results of the study showed that the primary study endpoint was met and hemophilia B patients taking once-weekly BeneFIX showed a statistically significant reduction in the annualized bleeding rate relative to on-demand treatment with BeneFIX. In the study, the median ABR value, a commonly used measure of efficacy for prophylaxis regimens in hemophilia, was 2.0 for the prophylaxis regimen, compared to 33.6 for the on-demand regimen, representing a 94% decrease in bleeding rates. The mean ABR value was 3.6 for the prophylaxis period, compared to 32.9 for the on-demand treatment, which represents a reduction of 89%. Study results also showed that prophylaxis treatment significantly reduced both spontaneous and traumatic ABR compared to on-demand treatment with BeneFIX. In addition to meeting the primary endpoint, the secondary study endpoints showed that none of the 1,254 prophylaxis infusions administered during the study were associated with a less than expected therapeutic effect occurrence, which was defined as a spontaneous bleed occurring within 48 hours of a prophylaxis infusion. These results are preliminary, top-line data and are subject to additional analyses. Complete results from this study will be submitted for presentation at upcoming medical congresses and submitted for publication in a peer-reviewed journal.

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