The baseline data from GLORIA-AF phase 2 demonstrate that in newly diagnosed nonvalvular atrial fibrillation patients, NOAC have been highly adopted into practice, becoming more frequently prescribed than VKA in Europe and North America. Worldwide, however, a large proportion of patients remain undertreated, particularly in Asia and North America. (Global Registry on Long-Term Oral Antithrombotic Treatment in Patients With Atrial Fibrillation [GLORIA-AF]; NCT01468701).
Summ ary: A total of 72 RG-2 transplanted gliomas were studied in 58 rats at three time points (1, 30, 240 min) after intravenous injection of [125Ilradioiodinated serum albumin ([125I]RISA). The animals were divided into two groups: a control group that received no treatment and a second group that was treated with five doses of 1.5 mg/kg of dexamethasone over 2.5 days. 687comparison of the tumor influx constants in control an imals and the aqueous diffusion constants of two different size molecules (RISA and amino isobutyric acid) suggests that the "pores" across RG-2 capillaries are large and may not restrict the free diffusion of RISA (estimated minimum pore diameter > 36 nm) and that the total pore area is -6.2 x 10-5 cm2 g-I in RG-2 tumor tissue. The second model, which allows for diffusion and solvent drag of RISA across tumor capillaries and through the tissue, was used to analyze the distribution profiles of RISA in peripheral tumor and adjacent brain. This anal ysis was consistent with a small bulk flow of plasma-de rived edema fluid (capillary filtration rate = 0.8 I·d g-I min -I) and a larger component of free diffusion of RISA ( K = 2 fLl g-I min-I) through pores in the tumor vessels of control animals. Dexamethasone treatment markedly reduced or eliminated the filtration of plasma-derived fluid across tumor capillaries and the movement of RISA through the extracellular space by solvent drag. These effects may be mediated by a reduction in the size of the extracellular space and/or a decrease in the pore size of tumor capillaries and could represent an important mech anism for corticosteroid control of tumor and peri tumoral brain edema.
A controlled randomized study was carried out to evaluate the effects of chemotherapy in patients with brain metastases from lung carcinoma. One hundred patients were randomly divided into three groups at the time of diagnosis or after surgery for metastases. Group A received radiotherapy alone; Group B received radiotherapy and chloroethylnitrosoureas (methyl-CCNU, 100-120 mg/m2, or ACNU 80-100 mg/m2, every 6-8 weeks), and Group C received radiotherapy and a combination of chloroethylnitrosoureas and tegafur (300 mg/m2. daily). Of the 100 patients, 88 could be evaluated. The reduction rates of the tumors of the patients in whom tumor was not surgically removed or not totally removed were compared. Complete resolution of the tumor was noted in 29, 69, and 63% of the patients in Groups A, B, and C, respectively, Tumor regression of ⩾50% was seen in 36, 69. and 74% of the patients in Groups A, B, and C, respectively. The difference in the response rates of Groups A and C was statistically signficiant (P<0.05). Median survival after the start of treatment for brain metastasis was 27, 30.5, and 29 weeks in Groups A, B, and C, respectively. There was 1 long-term survivor (more than 5 years) in Group A, 3 in Group B, and 1 in Group C. The main cause of death was deterioration attributable to the primary lesion or systemic metastasis, and no statistical difference was noted in survival time among the groups. Our results indicate that combination chemotherapy with chloroethylnitrosoureas and tegafur has an additive effect on radiotherapy in reducing or eliminating brain metastases from lung carcinoma, and that brain metastasis is well controlled by multidisciplinary treatment including chemotherapy.
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