Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland.
Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
J Infect Dis. 2020 Jul 23;222(4):637-645. doi: 10.1093/infdis/jiaa125.
BACKGROUND: Replacing tenofovir disoproxil fumarate (TDF) with tenofovir alafenamide (TAF) improves renal tubular markers in HIV-infected individuals but the impact on estimated glomerular filtration rate (eGFR) remains unclear. METHODS: In all participants from the Swiss HIV Cohort Study who switched from TDF to TAF-containing antiretroviral regimen or continued TDF, we estimated changes in eGFR and urine protein-to-creatinine ratio (UPCR) after 18 months using mixed-effect models. RESULTS: Of 3520 participants (26.6% women, median age 50 years), 2404 (68.5%) switched to TAF. Overall, 1664 (47.3%) had an eGFR <90 mL/min and 1087 (30.9%) an UPCR ≥15 mg/mmol. In patients with baseline eGFR ≥90 mL/min, eGFR decreased with the use of TDF and TAF (-1.7 mL/min). Switching to TAF was associated with increases in eGFR of 1.5 mL/min (95% confidence interval [CI], .5-2.5) if the baseline eGFR was 60-89 mL/min, and 4.1 mL/min (95% CI, 1.6-6.6) if <60 mL/min. In contrast, eGFR decreased by 5.8 mL/min (95% CI, 2.3-9.3) with continued use of TDF in individuals with baseline eGFR <60 mL/min. UPCR decreased after replacing TDF by TAF, independent of baseline eGFR. CONCLUSIONS: Switching from TDF to TAF improves eGFR and proteinuria in patients with renal dysfunction.
背景:替诺福韦二吡呋酯(TDF)换用替诺福韦艾拉酚胺(TAF)可改善 HIV 感染者的肾小管标志物,但对估算肾小球滤过率(eGFR)的影响尚不清楚。
方法:在所有从 TDF 转换为包含 TAF 的抗逆转录病毒方案或继续使用 TDF 的瑞士 HIV 队列研究参与者中,我们使用混合效应模型在 18 个月时估计 eGFR 和尿蛋白/肌酐比值(UPCR)的变化。
结果:在 3520 名参与者中(26.6%为女性,中位年龄 50 岁),有 2404 名(68.5%)转换为 TAF。总体而言,有 1664 名(47.3%)eGFR<90 mL/min,1087 名(30.9%)UPCR≥15 mg/mmol。在基线 eGFR≥90 mL/min 的患者中,使用 TDF 和 TAF 可导致 eGFR 降低(-1.7 mL/min)。如果基线 eGFR 为 60-89 mL/min,则转换为 TAF 可使 eGFR 增加 1.5 mL/min(95%置信区间[CI],0.5-2.5),如果基线 eGFR<60 mL/min,则增加 4.1 mL/min(95%CI,1.6-6.6)。相比之下,如果继续使用 TDF,基线 eGFR<60 mL/min 的患者 eGFR 会降低 5.8 mL/min(95%CI,2.3-9.3)。无论基线 eGFR 如何,用 TAF 替换 TDF 后 UPCR 均会降低。
结论:在肾功能障碍患者中,从 TDF 换用 TAF 可改善 eGFR 和蛋白尿。
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