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  1. Article ; Online: Uric acid-lowering effect of dotinurad, a novel selective urate reabsorption inhibitor, in hypertensive patients with gout or asymptomatic hyperuricemia: a pooled analysis of individual participant data in phase II and III trials.

    Takahashi, Toshinari / Beppu, Takanobu / Hidaka, Yuji / Hosoya, Tatsuo

    Clinical and experimental hypertension (New York, N.Y. : 1993)

    2021  Volume 43, Issue 8, Page(s) 730–741

    Abstract: ... ...

    Abstract Background
    MeSH term(s) Benzothiazoles ; Clinical Trials, Phase II as Topic ; Gout/complications ; Gout/drug therapy ; Gout Suppressants/therapeutic use ; Humans ; Hypertension/complications ; Hypertension/drug therapy ; Hyperuricemia/complications ; Hyperuricemia/drug therapy ; Pharmaceutical Preparations ; Uric Acid ; Uricosuric Agents/therapeutic use
    Chemical Substances Benzothiazoles ; Gout Suppressants ; Pharmaceutical Preparations ; Uricosuric Agents ; Uric Acid (268B43MJ25) ; dotinurad (305EB53128)
    Language English
    Publishing date 2021-08-23
    Publishing country England
    Document type Journal Article ; Meta-Analysis
    ZDB-ID 604757-9
    ISSN 1525-6006 ; 0730-0077
    ISSN (online) 1525-6006
    ISSN 0730-0077
    DOI 10.1080/10641963.2021.1950752
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Mass-like Lesions Causing Compression of Large Vessels in Granulomatosis with Polyangiitis.

    Hanzawa, Satoshi / Noda, Seiji / Hosoya, Tadashi / Kawahara, Tatsuo / Nukui, Yoshihisa

    Internal medicine (Tokyo, Japan)

    2022  Volume 62, Issue 16, Page(s) 2427–2431

    Abstract: A 69-year-old woman with a history of otitis media with anti-neutrophil cytoplasmic antibody-associated vasculitis who had been receiving corticosteroid monotherapy presented with shortness of breath. The otitis media had been alleviated, but she had ... ...

    Abstract A 69-year-old woman with a history of otitis media with anti-neutrophil cytoplasmic antibody-associated vasculitis who had been receiving corticosteroid monotherapy presented with shortness of breath. The otitis media had been alleviated, but she had saddle nose. Chest enhanced computed tomography showed stenoses of the bronchi and large vessels surrounded by mass-like lesions in the mediastinum. These manifestations indicated an active state of granulomatosis with polyangiitis (GPA). After she was started on high-dose corticosteroids and intravenous cyclophosphamide, the mass-like lesions disappeared with improvements of the stenoses. Ameliorating mass-like lesions resulting from GPA requires therapeutic intervention using corticosteroids and immunosuppressants.
    MeSH term(s) Female ; Humans ; Aged ; Granulomatosis with Polyangiitis/complications ; Granulomatosis with Polyangiitis/diagnosis ; Granulomatosis with Polyangiitis/drug therapy ; Constriction, Pathologic ; Cyclophosphamide/therapeutic use ; Adrenal Cortex Hormones/therapeutic use ; Otitis Media/drug therapy ; Antibodies, Antineutrophil Cytoplasmic/therapeutic use
    Chemical Substances Cyclophosphamide (8N3DW7272P) ; Adrenal Cortex Hormones ; Antibodies, Antineutrophil Cytoplasmic
    Language English
    Publishing date 2022-12-28
    Publishing country Japan
    Document type Case Reports ; Journal Article
    ZDB-ID 32371-8
    ISSN 1349-7235 ; 0021-5120 ; 0918-2918
    ISSN (online) 1349-7235
    ISSN 0021-5120 ; 0918-2918
    DOI 10.2169/internalmedicine.0561-22
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: [110th Scientific Meeting of the Japanese Society of Internal Medicine: presidential lecture; internal medicine for variability among individuals].

    Hosoya, Tatsuo

    Nihon Naika Gakkai zasshi. The Journal of the Japanese Society of Internal Medicine

    2013  Volume 102, Issue 9, Page(s) 2145–2151

    MeSH term(s) Humans ; Internal Medicine/trends ; Kidney/physiology ; Uric Acid/metabolism
    Chemical Substances Uric Acid (268B43MJ25)
    Language Japanese
    Publishing date 2013-10-31
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 952816-7
    ISSN 1883-2083 ; 0021-5384
    ISSN (online) 1883-2083
    ISSN 0021-5384
    DOI 10.2169/naika.102.2145
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: [The 40th scientific meeting: perspectives of internal medicine; present situation and future extension of organ transplantation in Japan; 1. Preface].

    Hosoya, Tatsuo

    Nihon Naika Gakkai zasshi. The Journal of the Japanese Society of Internal Medicine

    2013  Volume 102, Issue 3, Page(s) 543–544

    MeSH term(s) Humans ; Internal Medicine/trends ; Japan ; Organ Transplantation/legislation & jurisprudence ; Organ Transplantation/trends
    Language Japanese
    Publishing date 2013-05-21
    Publishing country Japan
    Document type Introductory Journal Article
    ZDB-ID 952816-7
    ISSN 1883-2083 ; 0021-5384
    ISSN (online) 1883-2083
    ISSN 0021-5384
    DOI 10.2169/naika.102.543
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Dotinurad: a novel selective urate reabsorption inhibitor for the treatment of hyperuricemia and gout.

    Ishikawa, Tomohiko / Takahashi, Toshinari / Taniguchi, Tetsuya / Hosoya, Tatsuo

    Expert opinion on pharmacotherapy

    2021  Volume 22, Issue 11, Page(s) 1397–1406

    Abstract: Introduction: Gout is an inflammatory disease triggered by deposition of urate crystals secondary to longstanding hyperuricemia, and its management implies both the treatment of flares and management of hyperuricemia. Dotinurad is a selective urate ... ...

    Abstract Introduction: Gout is an inflammatory disease triggered by deposition of urate crystals secondary to longstanding hyperuricemia, and its management implies both the treatment of flares and management of hyperuricemia. Dotinurad is a selective urate reabsorption inhibitor (SURI), potently inhibits urate transporter 1 in the apical surface of renal proximal tubular cells, and has been approved for the treatment of gout and hyperuricemia in Japan.
    Areas covered: This overview of dotinurad covers nonclinical and clinical pharmacology studies in special populations and its efficacy and safety in Japanese hyperuricemic patients with and without gout.
    Expert opinion: Dotinurad, as an SURI, is expected to inhibit urate reabsorption more effectively than conventional urate-lowering agents. It is noninferior to benzbromarone or febuxostat in reducing serum urate levels in hyperuricemic patients with or without gout. Its efficacy is not attenuated in patients with mild to moderate renal impairment or with hepatic impairment. At a maintenance dose of 2 or 4 mg once daily, most patients achieved the target serum urate level of ≤6 mg/dL in a long-term study. No findings that raised safety concerns, including liver injury, were identified. Dotinurad is expected to be a new therapeutic option in hyperuricemic patients with and without gout.
    MeSH term(s) Benzothiazoles ; Febuxostat/therapeutic use ; Gout/drug therapy ; Gout Suppressants/therapeutic use ; Humans ; Hyperuricemia/drug therapy ; Uric Acid ; Uricosuric Agents/therapeutic use
    Chemical Substances Benzothiazoles ; Gout Suppressants ; Uricosuric Agents ; Febuxostat (101V0R1N2E) ; Uric Acid (268B43MJ25) ; dotinurad (305EB53128)
    Language English
    Publishing date 2021-04-30
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2001535-5
    ISSN 1744-7666 ; 1465-6566
    ISSN (online) 1744-7666
    ISSN 1465-6566
    DOI 10.1080/14656566.2021.1918102
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Comparative study of a novel selective urate reabsorption inhibitor "dotinurad" among patient groups with different stages of renal dysfunction.

    Takahashi, Toshinari / Beppu, Takanobu / Hidaka, Yuji / Hosoya, Tatsuo

    Clinical and experimental nephrology

    2021  Volume 25, Issue 12, Page(s) 1336–1345

    Abstract: Background: Dotinurad is a selective urate reabsorption inhibitor (SURI), which selectively inhibits URAT1 to lower serum uric acid levels in patients with hyperuricemia. Herein, the effects of dotinurad were compared among patient groups with different ...

    Abstract Background: Dotinurad is a selective urate reabsorption inhibitor (SURI), which selectively inhibits URAT1 to lower serum uric acid levels in patients with hyperuricemia. Herein, the effects of dotinurad were compared among patient groups with different stages of renal dysfunction.
    Methods: Patient data from four clinical trials were pooled and divided into four groups according to the stage of renal dysfunction to compare the effects of dotinurad at different stages. The grouping (stages G1-G3b) was based on the estimated glomerular filtration rate (eGFR) of the patients. In addition, patient data from a long-term study (34 or 58 weeks) were evaluated in the same manner.
    Results: In the pooled analysis, the percentage of patients achieving a serum uric acid level of ≤ 6.0 mg/dL was 64.7-100.0% at a dose of 2 or 4 mg. In the long-term analysis, the percentage of patients achieving a serum uric acid level of ≤ 6.0 mg/dL was 60.0-100.0% at a dose of 2 or 4 mg. Although the outcomes in stage G3b were worse due to higher baseline serum uric acid levels, satisfactory outcomes were observed in all stages. Even in stages G3a and G3b, when renal function declined, the eGFR remained constant throughout the dose period.
    Conclusion: The efficacy of dotinurad was confirmed in hyperuricemic patients with normal renal function (stage G1) and mild to moderate renal dysfunction (stage G2-G3b). Dotinurad was found to be effective in the treatment of hyperuricemia in patients with mild to moderate renal dysfunction.
    MeSH term(s) Adult ; Aged ; Benzothiazoles/adverse effects ; Benzothiazoles/therapeutic use ; Biomarkers/blood ; Clinical Trials as Topic ; Female ; Glomerular Filtration Rate ; Humans ; Hyperuricemia/blood ; Hyperuricemia/diagnosis ; Hyperuricemia/drug therapy ; Hyperuricemia/physiopathology ; Kidney/drug effects ; Kidney/metabolism ; Kidney/physiopathology ; Kidney Diseases/diagnosis ; Kidney Diseases/physiopathology ; Male ; Middle Aged ; Renal Reabsorption/drug effects ; Treatment Outcome ; Uric Acid/blood ; Uricosuric Agents/adverse effects ; Uricosuric Agents/therapeutic use
    Chemical Substances Benzothiazoles ; Biomarkers ; Uricosuric Agents ; Uric Acid (268B43MJ25) ; dotinurad (305EB53128)
    Language English
    Publishing date 2021-07-30
    Publishing country Japan
    Document type Comparative Study ; Journal Article
    ZDB-ID 1338768-6
    ISSN 1437-7799 ; 1342-1751
    ISSN (online) 1437-7799
    ISSN 1342-1751
    DOI 10.1007/s10157-021-02115-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: A clinical pharmacology study of the novel, selective urate reabsorption inhibitor dotinurad in outpatients.

    Hosoya, Tatsuo / Furuno, Kazuki / Kanda, Shingo

    Clinical and experimental nephrology

    2020  Volume 24, Issue Suppl 1, Page(s) 103–111

    Abstract: Background: Dotinurad is a novel, selective urate reabsorption inhibitor (SURI), which reduces serum uric acid levels by selective inhibition of the urate transporter 1 (URAT1). The Japanese guideline for the management of hyperuricemia and gout ... ...

    Abstract Background: Dotinurad is a novel, selective urate reabsorption inhibitor (SURI), which reduces serum uric acid levels by selective inhibition of the urate transporter 1 (URAT1). The Japanese guideline for the management of hyperuricemia and gout recommends that drug selection should be based on classification of hyperuricemia as a fundamental principle. However, there may be some cases where this principle is not observed. We investigated the pharmacodynamics and safety of dotinurad in outpatients with uric acid overproduction or uric acid underexcretion type.
    Methods: This was a multicenter, open-label, forced titration study. Patients were classified as uric acid overproduction or underexcretion type. Study treatment was initiated at 0.5 mg/day, followed by dose titration to the estimated maximum dose of 4 mg/day over 14 weeks. The primary endpoint was urinary uric acid excretion at each 24-h urine collection.
    Results: A total of 26 hyperuricemic patients with or without gout were enrolled in the study and assigned to the uric acid overproduction group (overproduction group) or the uric acid underexcretion group (underexcretion group). Although urinary uric acid excretion, the primary endpoint, tended to be slightly greater in the overproduction group, no notable difference was noted between the two hyperuricemic types. Neither type had noteworthy safety concerns associated with dotinurad.
    Conclusion: The results of the study demonstrated no relevant differences between the hyperuricemic types in terms of pharmacodynamic action and safety of dotinurad.
    MeSH term(s) Adult ; Aged ; Benzothiazoles/adverse effects ; Benzothiazoles/pharmacology ; Benzothiazoles/therapeutic use ; Humans ; Hyperuricemia/classification ; Hyperuricemia/drug therapy ; Japan ; Male ; Middle Aged ; Outpatients ; Uric Acid/blood ; Uric Acid/urine ; Uricosuric Agents/therapeutic use
    Chemical Substances Benzothiazoles ; Uricosuric Agents ; Uric Acid (268B43MJ25) ; dotinurad (305EB53128)
    Language English
    Publishing date 2020-02-18
    Publishing country Japan
    Document type Clinical Trial ; Journal Article ; Multicenter Study
    ZDB-ID 1338768-6
    ISSN 1437-7799 ; 1342-1751
    ISSN (online) 1437-7799
    ISSN 1342-1751
    DOI 10.1007/s10157-020-01857-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A non-inferiority study of the novel selective urate reabsorption inhibitor dotinurad versus febuxostat in hyperuricemic patients with or without gout.

    Hosoya, Tatsuo / Furuno, Kazuki / Kanda, Shingo

    Clinical and experimental nephrology

    2020  Volume 24, Issue Suppl 1, Page(s) 71–79

    Abstract: Background: Dotinurad is a novel, selective urate reabsorption inhibitor, which reduces serum uric acid levels by selective inhibition of the urate transporter 1. We evaluated the efficacy and safety of dotinurad versus febuxostat, a widely used drug in ...

    Abstract Background: Dotinurad is a novel, selective urate reabsorption inhibitor, which reduces serum uric acid levels by selective inhibition of the urate transporter 1. We evaluated the efficacy and safety of dotinurad versus febuxostat, a widely used drug in Japan, in hyperuricemic Japanese patients with or without gout.
    Methods: This was a multicenter, randomized, double-blind, active-controlled, parallel-group, forced-titration study in hyperuricemic patients. Study treatment in the dotinurad and febuxostat groups was initiated at 0.5 and 10 mg/day, followed by dose titration to 2 and 40 mg/day, respectively, over 14 weeks. The primary endpoint was the percent change in serum uric acid level from the baseline to the final visit.
    Results: A total of 203 hyperuricemic patients with or without gout were enrolled in the study and randomized to receive dotinurad or febuxostat. The percent change in serum uric acid level from the baseline to the final visit was 41.82% in the dotinurad group and 44.00% in the febuxostat group. The mean difference was - 2.17% (two-sided 95% confidence interval - 5.26% to 0.92%). The lower limit of the interval was above the non-inferiority margin (- 10%), demonstrating the non-inferiority of dotinurad to febuxostat. The profiles of adverse events and adverse drug reactions raised no noteworthy safety concerns in either group.
    Conclusion: The non-inferiority of dotinurad to febuxostat in terms of serum uric acid lowering effect was confirmed. No noteworthy safety concerns arose.
    MeSH term(s) Adult ; Aged ; Benzothiazoles/administration & dosage ; Benzothiazoles/adverse effects ; Benzothiazoles/therapeutic use ; Double-Blind Method ; Febuxostat/administration & dosage ; Febuxostat/adverse effects ; Febuxostat/therapeutic use ; Gout/drug therapy ; Humans ; Hyperuricemia/drug therapy ; Japan ; Male ; Middle Aged ; Treatment Outcome ; Uric Acid/blood ; Uricosuric Agents/therapeutic use
    Chemical Substances Benzothiazoles ; Uricosuric Agents ; Febuxostat (101V0R1N2E) ; Uric Acid (268B43MJ25) ; dotinurad (305EB53128)
    Language English
    Publishing date 2020-01-22
    Publishing country Japan
    Document type Clinical Trial, Phase III ; Comparative Study ; Journal Article ; Multicenter Study ; Randomized Controlled Trial
    ZDB-ID 1338768-6
    ISSN 1437-7799 ; 1342-1751
    ISSN (online) 1437-7799
    ISSN 1342-1751
    DOI 10.1007/s10157-020-01851-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Dotinurad versus benzbromarone in Japanese hyperuricemic patient with or without gout: a randomized, double-blind, parallel-group, phase 3 study.

    Hosoya, Tatsuo / Sano, Takafumi / Sasaki, Tomomitsu / Fushimi, Masahiko / Ohashi, Tetsuo

    Clinical and experimental nephrology

    2020  Volume 24, Issue Suppl 1, Page(s) 62–70

    Abstract: Background: Dotinurad is a novel selective urate reabsorption inhibitor that reduces serum urate levels in hyperuricemic patients with or without gout by selectively inhibiting urate transporter 1. This study was conducted to compare the efficacy and ... ...

    Abstract Background: Dotinurad is a novel selective urate reabsorption inhibitor that reduces serum urate levels in hyperuricemic patients with or without gout by selectively inhibiting urate transporter 1. This study was conducted to compare the efficacy and safety of dotinurad with those of benzbromarone.
    Methods: In this 14-week, randomized, multicenter, double-blind, parallel-group, dose escalation, benzbromarone-controlled, phase 3 study, hyperuricemic patients with or without gout were randomized to two groups that received either dotinurad 2 mg or benzbromarone 50 mg. Dotinurad or benzbromarone was administered once a day for 14 weeks. The primary endpoint was the percent change in serum uric acid level from the baseline to the final visit.
    Results: A total of 201 Japanese hyperuricemic patients with or without gout (dotinurad: 102, benzbromarone: 99) received at least one dose of the study drug. The mean percent change in serum uric acid level from the baseline to the final visit in the dotinurad and benzbromarone groups was 45.9% and 43.8%, respectively. Non-inferiority of dotinurad 2 mg to benzbromarone 50 mg in lowering serum uric acid was verified by the predefined non-inferiority margin (95% CI - 1.27 to 5.37%). The incidence of adverse events and adverse drug reactions was comparable between the two groups.
    Conclusion: Dotinurad 2 mg was verified to have a non-inferior serum uric acid lowering effect compared with benzbromarone 50 mg, in Japanese hyperuricemic patients with or without gout. CLINICALTRIALS.
    Gov identifier: NCT03100318.
    MeSH term(s) Adult ; Aged ; Benzbromarone/administration & dosage ; Benzbromarone/adverse effects ; Benzothiazoles/administration & dosage ; Benzothiazoles/adverse effects ; Double-Blind Method ; Female ; Gout/drug therapy ; Humans ; Hyperuricemia/classification ; Hyperuricemia/drug therapy ; Japan ; Male ; Middle Aged ; Treatment Outcome ; Uric Acid/blood ; Uricosuric Agents/administration & dosage
    Chemical Substances Benzothiazoles ; Uricosuric Agents ; Uric Acid (268B43MJ25) ; dotinurad (305EB53128) ; Benzbromarone (4POG0RL69O)
    Language English
    Publishing date 2020-01-24
    Publishing country Japan
    Document type Clinical Trial, Phase III ; Comparative Study ; Journal Article ; Multicenter Study ; Randomized Controlled Trial
    ZDB-ID 1338768-6
    ISSN 1437-7799 ; 1342-1751
    ISSN (online) 1437-7799
    ISSN 1342-1751
    DOI 10.1007/s10157-020-01849-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: [Gout and hyperuricemia: Introduction].

    Hosoya, Tatsuo

    Nihon rinsho. Japanese journal of clinical medicine

    2008  Volume 66, Issue 4, Page(s) 621–623

    MeSH term(s) Drug Design ; Gout ; Gout Suppressants ; Humans ; Hyperuricemia/etiology ; Hyperuricemia/therapy ; Medicine ; Organic Anion Transporters/genetics ; Organic Cation Transport Proteins/genetics ; Practice Guidelines as Topic ; Specialization
    Chemical Substances Gout Suppressants ; Organic Anion Transporters ; Organic Cation Transport Proteins ; SLC22A12 protein, human
    Language Japanese
    Publishing date 2008-04
    Publishing country Japan
    Document type Introductory Journal Article
    ZDB-ID 390903-7
    ISSN 0047-1852
    ISSN 0047-1852
    Database MEDical Literature Analysis and Retrieval System OnLINE

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