33 research outputs found
A randomized, placebo-controlled, double-blind phase 2 study of docetaxel compared to docetaxel plus zosuquidar (LY335979) in women with metastatic or locally recurrent breast cancer who have received one prior chemotherapy regimen
Purpose: To determine if concomitant administration of docetaxel plus zosuquidar.3HC1 can prolong progression-free survival in patients with metastatic breast cancer. Methods: A randomized, double-blind, multicenter, placebo-controlled clinical trial comparing docetaxel plus 500 mg zosuquidar.3HCl (DZ) with docetaxel plus placebo (DP). Results: A total of 170 patients were enrolled and randomly assigned to treatment. The median age was 53 years (range, 31-74 years). 81.7% of patients had prior chemotherapy in the adjuvant setting and 18.3% in the neoadjuvant setting. The median progression-free survival time was statistically different between groups [7.2 months (DZ) vs. 8.3 months (DP)]. Once the stratification factor relative to progression following prior chemotherapy was considered, no significant treatment difference existed. Conclusion: The combination of zosuquidar.3HCl plus docetaxel is safe. The analysis of efficacy data is complex, but it can be concluded that there is no difference in progression-free survival, overall survival, or response rate in the study as a whole. © 2009 Springer-Verlag.Articl
Change in flesh quality associated with early maturation of Atlantic halibut (Hippoglossus hippoglossus)
Polarized inelastic neutron scattering of the partially ordered Tb2Sn2O7
We present inelastic neutron scattering results on the geometrically frustrated pyrochlore Tb2Sn2O7. At high temperature T gt;50K, this system resembles the cooperative paramagnet Tb2Ti2O7, while at low temperature T 60mK, it displays remarkably different behavior. Powder neutron scattering, susceptibility and specific heat techniques have shown that below 0.87K Tb2Sn2O7 enters a partially ordered state that is characterized by two sublattice ferrimagnetic long range order which coexists with paramagnetic spin components. We show that i the low temperature state produces a large internal field and collective excitations and ii the coexisting paramagnetic state persists down to 0.1K, with spins fluctuation at a rate greater than 0.04 THz, resulting in a diffuse magnetic background to the diffraction patterns. A low lying excitation at 1.2meV partially softens as short range correlations build up while cooling in the paramagnetic stat