Stepwise dose increase of febuxostat is comparable with colchicine prophylaxis for the prevention of gout flares during the initial phase of urate-lowering therapy: results from FORTUNE-1, a prospective, multicentre randomised study.

Objectives: To determine whether febuxostat with stepwise dose increase is as useful as colchicine prophylaxis in reducing gout flares during the initial introduction of urate-lowering therapy in patients with gout in comparison with febuxostat with no dose titration.

Methods: In this prospective, multicentre, randomised open-label comparative study, patients were randomised to group A (stepwise dose increase of febuxostat from 10 to 40 mg/day), group B (fixed-dose febuxostat 40 mg/day plus colchicine 0.5 mg/day) or group C (fixed-dose febuxostat 40 mg/day) and observed for 12 weeks.

Pharmacokinetics of abiraterone in healthy Japanese men: dose-proportionality and effect of food timing.

Purpose: Abiraterone acetate (AA) was recently approved for castration-resistant prostate cancer in Japan. Two phase 1 studies were conducted to assess the pharmacokinetics of abiraterone after single-dose administration in Japanese healthy men and to evaluate the effects of food timing on abiraterone pharmacokinetics after single-dose administration of AA in Japanese and Caucasian healthy men.

Methods: In the dose-proportionality study, subjects (n = 30 Japanese) were randomly assigned to receive single doses of 250, 500, and 1,000 mg AA, and in the food-timing study, subjects (n = 22 Japanese and n = 23 Caucasian) randomly received single doses of 1,000 mg AA under fasted (overnight) and three different modified fasting conditions.

Factors affecting efficacy and safety of add-on combination chemotherapy for non-small-cell lung cancer: a literature-based pooled analysis of randomized controlled trials.

Background: Several clinical trials of chemotherapy for non-small-cell lung cancer (NSCLC) have been conducted to date. However, these studies have not been effective at identifying category 1 recommended strategies for systemic chemotherapy according to the National Comprehensive Cancer Network clinical practice guidelines.

Purpose And Method: To investigate the factors that influence the efficacy and safety of add-on combination chemotherapy for NSCLC based on published reports, we searched the PubMed and EMBASE for reports of randomized, controlled trials that compared efficacy and safety between groups with and without the use of add-on drugs to base chemotherapy in patients with NSCLC.

Cell-cycle-dependent pharmacology of methotrexate in HL-60.

The role of the susceptibility of cells and the pharmacokinetics of MTX on the time-dependent change of methotrexate (MTX) pharmacologic action in HL-60 (human leukemia cell) was investigated from the viewpoints of the rhythm of DNA synthesis. The highest activity of MTX was observed at the time when DNA synthesis, dihydrofolate reductase (DHFR) activity, DHFR content, and DHFR mRNA content increased and the lowest activity was observed at the time when they decreased. There were significant time-dependent changes in MTX efflux.

Simultaneous determination of hydrogen cyanide and volatile aliphatic nitriles by headspace gas chromatography, and its application to an in vivo study of the metabolism of acrylonitrile in the rat.

A method for the simultaneous determination of hydrogen cyanide (HCN) and aliphatic nitriles using manual headspace (HS) gas chromatography (GC) with a capillary porous polymer column GS-Q and a nitrogen-phosphorus detector is described. With a HS incubation at 50 degrees C for 30 min and a GC temperature at 180 degrees C, HCN and volatile nitriles [acetonitrile, acrylonitrile (VCN), propionitrile, isobutyronitrile] were well separated and could be detected within 7 min with a detection limit of 0.7-2.

Role of ultrasonography in treatment selection.

In spite of difficulties impacting objectivity and reproducibility due to its dependence on the technical and diagnostic ability of each examiner, ultrasonography (US) in general can evaluate very well soft tissue lesions, especially small lesions of 1 cm or less in size. US can reliably delineate the nature of several lesions, and can detect dilated mammary ducts and lymph nodes. On the other hand, US may miss ductal spread or lymph node metastasis of breast cancer, especially if the lesions are too minute to be detected by the instrument.

Cell kinetics-dependent antitumor effect of irinotecan hydrochloride induced by the synchronizing effect of hydroxyurea: cell kinetics and dosing time.

Influence of hydroxyurea (HU) on the antitumor effect of irinotecan hydrochloride (CPT-11) was investigated in ICR male mice transplanted with sarcoma 180 cells (S-180). A single dose of CPT-11 (100 mg/kg) was injected at various times after a single dose of HU (300 mg/kg). The relative tumor weight varied significantly depending on the timing of CPT-11 injection after HU injection (P < 0.