26
|
Okumiya K, Fujisawa M, Wada T, Garcia del Saz E, Hirata Y, Kuzuhara S, Kokubo Y, Matsubayashi K, Manuaba I, Ferry Kareth M, Ary Mollet J, Rantetampang A, Sakamoto R. Longitudinal study for amyotrophic lateral sclerosis and parkinsonism in Papua, Indonesia: 2001–2017 survey results. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
27
|
Hamaji Y, Lee H, Kreter A, Möller S, Rasinski M, Tokitani M, Masuzaki S, Sagara A, Oya M, Ibano K, Ueda Y, Sakamoto R. Damage and deuterium retention of re-solidified tungsten following vertical displacement event-like heat load. NUCLEAR MATERIALS AND ENERGY 2017. [DOI: 10.1016/j.nme.2016.11.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
28
|
Motojima G, Yoshida N, Masuzaki S, Sakamoto R, Tokitani M, Tanaka H, Murase T, Nagata D, Matsumoto K, Miyamoto M, Yajima M, Sakamoto M, Yamada H, Morisaki T. Wide-range evaluation of the deposition layer thickness distribution on the first wall by reflection coefficient measurements. NUCLEAR MATERIALS AND ENERGY 2017. [DOI: 10.1016/j.nme.2017.04.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
29
|
Tanaka H, Kawamura G, Masuzaki S, Kobayashi M, Akiyama T, Peterson B, Mukai K, Sano R, Dai S, Sakamoto R, Morisaki T, Ohno N. Toroidally symmetric/asymmetric effect on the divertor flux due to neon/nitrogen seeding in LHD. NUCLEAR MATERIALS AND ENERGY 2017. [DOI: 10.1016/j.nme.2016.12.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
30
|
Nakamura Y, Tamura N, Kobayashi M, Yoshimura S, Suzuki C, Yoshinuma M, Goto M, Motojima G, Nagaoka K, Tanaka K, Sakamoto R, Peterson B, Ida K, Osakabe M, Morisaki T. A comprehensive study on impurity behavior in LHD long pulse discharges. NUCLEAR MATERIALS AND ENERGY 2017. [DOI: 10.1016/j.nme.2016.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
31
|
Osakabe M, Takeiri Y, Morisaki T, Motojima G, Ogawa K, Isobe M, Tanaka M, Murakami S, Shimizu A, Nagaoka K, Takahashi H, Nagasaki K, Takahashi H, Fujita T, Oya Y, Sakamoto M, Ueda Y, Akiyama T, Kasahara H, Sakakibara S, Sakamoto R, Tokitani M, Yamada H, Yokoyama M, Yoshimura Y. Current Status of Large Helical Device and Its Prospect for Deuterium Experiment. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.1080/15361055.2017.1335145] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
32
|
Creely AJ, Ida K, Yoshinuma M, Tokuzawa T, Tsujimura T, Akiyama T, Sakamoto R, Emoto M, Tanaka K, Michael CA. Novel analysis technique for measuring edge density fluctuation profiles with reflectometry in the Large Helical Device. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2017; 88:073509. [PMID: 28764512 DOI: 10.1063/1.4993437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A new method for measuring density fluctuation profiles near the edge of plasmas in the Large Helical Device (LHD) has been developed utilizing reflectometry combined with pellet-induced fast density scans. Reflectometer cutoff location was calculated by proportionally scaling the cutoff location calculated with fast far infrared laser interferometer (FIR) density profiles to match the slower time resolution results of the ray-tracing code LHD-GAUSS. Plasma velocity profile peaks generated with this reflectometer mapping were checked against velocity measurements made with charge exchange spectroscopy (CXS) and were found to agree within experimental uncertainty once diagnostic differences were accounted for. Measured density fluctuation profiles were found to peak strongly near the edge of the plasma, as is the case in most tokamaks. These measurements can be used in the future to inform inversion methods of phase contrast imaging (PCI) measurements. This result was confirmed with both a fixed frequency reflectometer and calibrated data from a multi-frequency comb reflectometer, and this method was applied successfully to a series of discharges. The full width at half maximum of the turbulence layer near the edge of the plasma was found to be only 1.5-3 cm on a series of LHD discharges, less than 5% of the normalized minor radius.
Collapse
|
33
|
Komori A, Morisaki T, Mutoh T, Sakakibara S, Takeiri Y, Kumazawa R, Kubo S, Ida K, Morita S, Narihara K, Shimozuma T, Tanaka K, Watanabe KY, Yamada H, Yoshinuma M, Akiyama T, Ashikawa N, Emoto M, Funaba H, Goto M, Ido T, Ikeda K, Inagaki S, Isobe M, Igami H, Itoh K, Kaneko O, Kawahata K, Kobuchi T, Masuzaki S, Matsuoka K, Minami T, Miyazawa J, Muto S, Nagayama Y, Nakamura Y, Nakanishi H, Narushima Y, Nishimura K, Nishiura M, Nishizawa A, Noda N, Ohdachi S, Oka Y, Osakabe M, Ohyabu N, Ozaki T, Peterson BJ, Sagara A, Saito K, Sakamoto R, Sato K, Sato M, Seki T, Shoji M, Sudo S, Tamura N, Toi K, Tokuzawa T, Tsumori K, Uda T, Watari T, Yamada I, Yokoyama M, Yoshimura Y, Motojima O, Beidler CD, Fujita T, Isayama A, Sakamoto Y, Takenaga H, Goncharov P, Ishii K, Sakamoto M, Murakami S, Notake T, Takeuchi N, Okajima S, Sasao M. Overview of Progress in LHD Experiments. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst06-a1229] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
34
|
Yamada H, Ida K, Murakami S, Watanabe KY, Ascasibar E, Brakel R, Dinklage A, Harris JH, Okamura S, Sano F, Stroth U, Inagaki S, Tanaka K, Goto M, Nishimura K, Narihara K, Morita S, Sakakibara S, Peterson BJ, Sakamoto R, Miyazawa J, Morisaki T, Osakabe M, Toi K, Tamura N, Ikeda K, Yamazaki K, Kawahata K, Kaneko O, Ohyabu N, Komori A, Motojima O. Configuration Effect on Energy Confinement and Local Transport in LHD and Contribution to the International Stellarator Database. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst04-a543] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
35
|
Sakamoto R, Yamada H, Kobayashi M, Miyazawa J, Ohdachi S, Morisaki T, Masuzaki S, Goto M, Funaba H, Yamada I, Ida K, Morita S, Peterson BJ, Ohyabu N, Komori A, Motojima O. Advanced Operational Regime with Internal Diffusion Barrier on LHD. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst10-a10793] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
36
|
Morisaki T, Masuzaki S, Kobayashi M, Sakamoto R, Tanaka K, Narihara K, Funaba H, Feng Y, Sardei F, Ohyabu N, Komori A, Motojima O, Feng Y, Sardei F. Recent Results of LID Experiment on LHD. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst06-a1238] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
37
|
Takenaga H, Miura Y, Kubo H, Sakamoto Y, Hiratsuka H, Ichige H, Yonekawa I, Kawamata Y, Tsuiji-Iio S, Sakamoto R, Kobayashi S. Burn Control Study Using Burning Plasma Simulation Experiments in JT-60U. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst06-a1222] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
38
|
Masuzaki S, Kobayashi M, Tokitani M, Ashikawa N, Hino T, Yamauchi Y, Nobuta Y, Yoshida N, Miyamoto M, Sakamoto R, Miyazawa J, Morisaki T, Ohyabu N, Yamada H, Komori A. Fuel Retention in LHD. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst10-a10818] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
39
|
Miyazawa J, Yamada H, Sakamoto R, Funaba H, Watanabe KY, Sakakibara S, Ida K, Goto M, Morisaki T, Murakami S, Inagaki S. Characteristics of the Global Energy Confinement and Central Pressure in LHD. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst10-a10790] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
40
|
Miyazawa J, Masuzaki S, Sakamoto R, Peterson BJ, Tamura N, Goto M, Kobayashi M, Shoji M, Akiyama T, Yamada H. Density Limits for the Core and Edge Plasmas Related to the Local Temperatures in LHD. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst10-a10807] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
41
|
Morisaki T, Masuzaki S, Sakamoto R, Kobayashi M, Ohyabu N, Yamada H, Komori A. Local Island Divertor Experiment. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst10-a10810] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
42
|
Komori A, Yamada H, Imagawa S, Kaneko O, Kawahata K, Mutoh K, Ohyabu N, Takeiri Y, Ida K, Mito T, Nagayama Y, Sakakibara S, Sakamoto R, Shimozuma T, Watanabe KY, Motojima O. Goal and Achievements of Large Helical Device Project. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst58-1] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
43
|
Yamada H, Kawahata K, Mutoh T, Ohyabu N, Takeiri Y, Imagawa S, Ida K, Mito T, Nagayama Y, Shimozuma T, Watanabe KY, Kobayashi M, Kumazawa R, Masuzaki S, Morisaki T, Miyazawa J, Nagaoka K, Narushima Y, Sakakibara S, Sakamoto R, Toi K, Yokoyama M, Kaneko O, Komori A, Motojima O. Progress in the Integrated Development of the Helical System. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst10-a10789] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
44
|
Motojima O, Yamada H, Komori A, Watanabe KY, Mutoh T, Takeiri Y, Ida K, Akiyama T, Asakura N, Ashikawa N, Chikaraishi H, Cooper WA, Emoto M, Fujita T, Fujiwara M, Funaba H, Goncharov P, Goto M, Hamada Y, Higashijima S, Hino T, Hoshino M, Ichimura M, Idei H, Ido T, Ikeda K, Imagawa S, Inagaki S, Isayama A, Isobe M, Itoh T, Itoh K, Kado S, Kalinina D, Kaneba T, Kaneko O, Kato D, Kato T, Kawahata K, Kawashima H, Kawazome H, Kobuchi T, Kondo K, Kubo S, Kumazawa R, Lyon JF, Maekawa R, Mase A, Masuzaki S, Mito T, Matsuoka K, Miura Y, Miyazawa J, More R, Morisaki T, Morita S, Murakami I, Murakami S, Mutoh S, Nagaoka K, Nagasaki K, Nagayama Y, Nakamura Y, Nakanishi H, Narihara K, Narushima Y, Nishimura H, Nishimura K, Nishiura M, Nishizawa A, Noda N, Notake T, Nozato H, Ohdachi S, Ohkubo K, Ohyabu N, Oyama N, Oka Y, Okada H, Osakabe M, Ozaki T, Peterson BJ, Sagara A, Saida T, Saito K, Sakakibara S, Sakamoto M, Sakamoto R, Sasao M, Sato K, Seki T, Shimozuma T, Shoji M, Sudo S, Takagi S, Takahashi Y, Takase Y, Takenaga H, Takeuchi N, Tamura N, Tanaka K, Tanaka M, Toi K, Takahata K, Tokuzawa T, Torii Y, Tsumori K, Watanabe F, Watanabe M, Watanabe T, Watari T, Yamada I, Yamada S, Yamaguchi T, Yamamoto S, Yamazaki K, Yanagi N, Yokoyama M, Yoshida N, Yoshimura S, Yoshimura Y, Yoshinuma M. Review on the Progress of the LHD Experiment. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst04-a535] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
45
|
Terayama H, Yi SQ, Tanaka O, Kanazawa T, Suyama K, Kosemura N, Tetsu S, Yamazaki H, Sakamoto R, Kawakami S, Suzuki T, Sakabe K. Common and separate origins of the left and right inferior phrenic artery with a review of the literature. Folia Morphol (Warsz) 2017; 76:408-413. [PMID: 28281724 DOI: 10.5603/fm.a2017.0025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 08/18/2016] [Indexed: 11/25/2022]
Abstract
In a 94-year-old male cadaver, upon which routine dissection was being conducted, a rare variation was found in the gastrophrenic trunk (GPT), the common trunk of the left gastric artery (LGA), right inferior phrenic artery (RIPA), and left inferior phrenic artery (LIPA); the GPT arises from the abdominal aorta. A hepatosplenic trunk accompanied the variation. In this variation, the RIPA first branched from the GPT and then to the LIPA and LGA. Variations in the common trunk of the LIPA and RIPA in the GPT are common, but to our knowledge, a variation (separate inferior phrenic artery in the GPT) similar to our findings has not been previously reported. We discuss the incidence and developmental and clinical significance of this variation with a detailed review of the literature. Knowledge of such a case has important clinical significance for invasive and non-invasive arterial procedures. Therefore, different variations concerning the LGA and inferior phrenic artery should be considered during surgical and non-surgical evaluations.
Collapse
|
46
|
Tokitani M, Miyamoto M, Masuzaki S, Fujii Y, Sakamoto R, Oya Y, Hatano Y, Otsuka T, Oyaidzu M, Kurotaki H, Suzuki T, Hamaguchi D, Isobe K, Asakura N, Widdowson A, Rubel M. Micro-/nano-characterization of the surface structures on the divertor tiles from JET ITER-like wall. FUSION ENGINEERING AND DESIGN 2017. [DOI: 10.1016/j.fusengdes.2017.01.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
47
|
Iwasaki M, Kimura Y, Ogawa H, Wada T, Sakamoto R, Ishimoto Y, Fujisawa M, Okumiya K, Ansai T, Miyazaki H, Matsubayashi K. The association between dentition status and sarcopenia in Japanese adults aged ≥75 years. J Oral Rehabil 2016; 44:51-58. [DOI: 10.1111/joor.12460] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/21/2016] [Indexed: 11/28/2022]
|
48
|
Motojima G, Sakamoto R, Okada H, Nagasaki K, Yamada H, Nakamura Y, Kado S, Kobayashi S, Konoshima S, Minami T, Ohshima S, Yamamoto S, Mizuuchi T, Mutoh T. Injection barrel with a tapered structure for a low speed and small size cryogenic hydrogen pellet in medium-sized plasma fusion devices. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:103503. [PMID: 27802740 DOI: 10.1063/1.4964476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An injection barrel was designed and fabricated for a small size 0.8 mm cryogenic pellet with a low speed of 200-300 m/s in medium-sized plasma fusion devices. Pellet injection with pneumatic acceleration was examined using a conventional in situ technique. A tapered structure was applied in the downstream side of the injection barrel to satisfy the requirement of pellet speed reduction by expansion of the propellant gas. Shadowgraph and light gate measurements show that the intact pellets have speeds of 260 ± 30 m/s and a typical size of 1.1-1.2 mm. The pellet ablation code based on a neutral gas shielding model shows that the penetration depth of the measured pellet parameters does not cross the plasma center, even in medium-sized plasma devices such as the Heliotron J helical device. The injection barrel with a tapered structure developed in this study is feasible for low speed pellet injection.
Collapse
|
49
|
Hosoya T, Ogawa Y, Hashimoto H, Ohashi T, Sakamoto R. Comparison of topiroxostat and allopurinol in Japanese hyperuricemic patients with or without gout: a phase 3, multicentre, randomized, double-blind, double-dummy, active-controlled, parallel-group study. J Clin Pharm Ther 2016; 41:290-7. [PMID: 27109450 DOI: 10.1111/jcpt.12391] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 03/24/2016] [Indexed: 11/28/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE There are no clinical reports that have compared topiroxostat, a selective xanthine oxidase inhibitor, with allopurinol in serum urate-lowering efficacy. The aim of this study was to compare the efficacy and safety of topiroxostat and allopurinol in Japanese hyperuricemic patients with or without gout. METHODS A phase 3, multicentre, randomized, double-blind, double-dummy, active-controlled, parallel-group study conducted in Japan. Patients who had inadequate serum urate levels (a gout patient: serum urate level ≥416·4 μmol/L; an asymptomatic hyperuricemic patient with specific complications (urinary lithiasis, hypertension, hyperlipidemia and/or diabetes): serum urate level ≥475·8 μmol/L; and an asymptomatic hyperuricemic patient with no specific complications: serum urate level ≥535·3 μmol/L) were randomized to topiroxostat 120 mg/day or allopurinol 200 mg/day, with an equal allocation ratio, for 16 weeks. To prevent the onset of gouty arthritis by rapid serum urate reduction, these doses were increased in a stepwise manner. The primary efficacy endpoint was the per cent change in serum urate level from baseline to the final visit. RESULTS AND DISCUSSION Overall, 206 patients were randomly assigned to topiroxostat and allopurinol. Two hundred and three patients (allopurinol: n = 105, topiroxostat: n = 98) received at least one dose of the study drug and had their serum urate level assessed at least once. The baseline characteristics were comparable between groups. The mean age of patients was 53·0 ± 11·4 years and 99% of patients were male. The primary efficacy endpoint was -34·3 ± 11·1% in the allopurinol group (n = 105) and -36·3 ± 12·7% in the topiroxostat group (n = 98). Non-inferiority of the serum urate-lowering efficacy of topiroxostat to allopurinol was proved by the predefined non-inferiority margin (95% confidence interval, -5·3 to 1·3%). The overall incidences of adverse events and adverse drug reactions were similar between both groups. WHAT IS NEW AND CONCLUSION Topiroxostat 120 mg/day provides non-inferior serum urate reduction compared with allopurinol 200 mg/day and is well tolerated in Japanese hyperuricemic patients with or without gout.
Collapse
|
50
|
Hosoya T, Sasaki T, Hashimoto H, Sakamoto R, Ohashi T. Clinical efficacy and safety of topiroxostat in Japanese male hyperuricemic patients with or without gout: an exploratory, phase 2a, multicentre, randomized, double-blind, placebo-controlled study. J Clin Pharm Ther 2016; 41:298-305. [PMID: 27079434 DOI: 10.1111/jcpt.12392] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 03/24/2016] [Indexed: 12/15/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE In Japan, although topiroxostat, a selective xanthine oxidoreductase inhibitor, has been used for the treatment of patients with hyperuricemia including gout, no published randomized controlled studies evaluating the dose-dependent relationship with respect to the serum urate-lowering efficacy have been reported. The aim of this study was to evaluate the dose-dependent relationship with serum urate-lowering efficacy and safety of topiroxostat in Japanese hyperuricemic patients including gout. METHODS We conducted an exploratory, phase 2a, multicentre, randomized, double-blind, 8-week, placebo-controlled study in Japanese hyperuricemic patients with or without gout. The study arms were placebo and topiroxostat 40, 60, 80 or 120 mg/day. The primary efficacy endpoint was the per cent change in serum urate level from baseline to the final visit. RESULTS AND DISCUSSION One hundred and eighty-seven eligible patients were randomized and 186 received at least one dose of the study drug. The study results demonstrated a dose-dependent serum urate reduction effect ranging from 40 to 120 mg/day (P < 0·001, Jonckheere-Terpstra test). The mean per cent change in serum urate level from baseline at the final visit was -30·8% in the 120-mg group and 1·6% with placebo, with a between-group difference of -32·4% ([95% confidence interval, -38·9% to -25·9%]; P < 0·001). Incidences of overall adverse events (AEs) in the topiroxostat groups were comparable to those in the placebo group; however, the incidence of AEs in the 120-mg group was statistically lower than that in the placebo group. The incidences of gouty arthritis were not statistically but numerically higher in the topiroxostat 80- and 120-mg groups. WHAT IS NEW AND CONCLUSIONS A dose-dependent serum urate-lowering efficacy of topiroxostat was observed in Japanese hyperuricemic male patients with or without gout. Further clinical studies aimed at evaluating the long-term safety and clinical efficacy are warranted.
Collapse
|