Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Akifumi Yafune"'
Autor:
Akifumi Yafune, Mamoru Narukawa
Publikováno v:
Pharmacoepidemiology and Drug Safety. 16:1146-1152
Purpose To investigate a suitable post-marketing safety study design, that is number of patients and duration of exposure, to well characterise adverse events (AEs) profiles under limited resources, fixed patient-months. Methods A simulation study is
Publikováno v:
Journal of Biopharmaceutical Statistics. 17:827-837
In clinical trials, sometimes only a single drug concentration can be measured from a patient because of the patient's burden. In this case, the sampling point is usually identical for all patients. From a single concentration, we cannot generally ob
Autor:
Takashi Fukuda, Akifumi Yafune, Kotaro Gomi, Toshiki Matsubara, Yasuyuki Seto, Keisho Chin, Toshiharu Yamaguchi, Masanori Tokunaga, Yo Kato, Kazuhiko Yamada, Takuyo Kozuka
Publikováno v:
Cancer Science. 98:937-942
T4 esophageal cancer is defined as the tumor invading adjacent structures, using tumor–node–metastasis (TNM) staging. For clinically T4 thoracic esophageal carcinoma, multimodality therapy, that is, neoadjuvant chemoradiotherapy (CRT) followed by
Publikováno v:
Journal of Biopharmaceutical Statistics. 16:193-205
Population pharmacokinetic (PPK) analysis usually employs nonlinear mixed effects models using first-order linearization methods. It is well known that linearization methods do not always perform well in actual situations. To avoid linearization, the
Publikováno v:
Communications in Statistics - Theory and Methods. 34:2331-2343
Because of its flexibility and usefulness, Akaike Information Criterion (AIC) has been widely used for clinical data analysis. In general, however, AIC is used without paying much attention to sample size. If sample sizes are not large enough, it is
Autor:
Mamoru Narukawa, Akifumi Yafune
Publikováno v:
Drug Information Journal. 39:353-360
Population pharmacokinetic studies with a single sampling design such as single-trough sampling have been frequently conducted in Japan, often with little statistical consideration to the sampling design as well as to the sample size. When pharmacoki
Publikováno v:
Statistics in Medicine. 24:3417-3429
In clinical data analysis, the restricted maximum likelihood (REML) method has been commonly used for estimating variance components in the linear mixed effects model. Under the REML estimation, however, it is not straightforward to compare several l
Autor:
Akifumi Yafune, Makio Ishiguro
Publikováno v:
Statistics in Medicine. 22:3045-3053
Since drug concentrations in blood are usually related to the effectiveness and toxicity, a confidence band for the drug concentrations gives useful information for the treatment. This paper proposes a simulation-based approach for constructing confi
Autor:
Akifumi Yafune
Publikováno v:
Kampo Medicine. 52:319-323
漢方処方の有効性および安全性の評価では, 長期投与症例における評価がひとつの重要なポイントである。日常の臨床において, このような長期投与症例に関する評価を行うためのひとつ
Autor:
Akifumi Yafune
Publikováno v:
Rinsho yakuri/Japanese Journal of Clinical Pharmacology and Therapeutics. 32:101-105