Long-Term Outcomes of Longitudinal Efficacy Study With Tolvaptan in ADPKD

Autor: Eiji Higashihara, Kikuo Nutahara, Masayuki Itoh, Takatsugu Okegawa, Mistuhiro Tambo, Tsuyoshi Yamaguchi, Yu Nakamura, Satoru Taguchi, Shinya Kaname, Kenichi Yokoyama, Tatsuya Yoshioka, Hiroshi Fukuhara
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Kidney International Reports, Vol 7, Iss 2, Pp 270-281 (2022)
Druh dokumentu: article
ISSN: 2468-0249
DOI: 10.1016/j.ekir.2021.11.034
Popis: Introduction: The effects of long-term and uninterrupted tolvaptan treatment on autosomal dominant polycystic kidney disease (ADPKD) are unclear. Therefore, a more than 3-year continuous treatment study was performed. Methods: From the Kyorin University cohort, 299 patients were surveyed and 179 patients were indicated for tolvaptan having a total kidney volume (TKV) ≥750 ml, TKV slope ≥5%/yr, and estimated glomerular filtration rate (eGFR) ≥15 ml/min per 1.73 m2. Among 179 patients, 118 patients consented to the study. Results: Retrospective pretreatment and prospective on-treatment periods had a median of 1.8 and 4.0 years, respectively. During the 5 treatment-years, the log10(TKV) slope/yr decreased from the pretreatment period (P < 0.0001) and the estimated height-adjusted TKV growth rate α (eHTKV-α, %/yr) decreased from baseline (P < 0.0001). The decline in eGFR improved in female patients (P < 0.0001), but not in males (P = 0.6321). Furthermore, during the 5 treatment-years, eGFR remained significantly better in the group with a percent decrease in eHTKV-α from baseline to the first treatment-year ≥ the median (2.94%) than in the group with a decrease
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