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The INDORSE Study: Inhibition of Dipeptidyl Peptidase IV: Outcomes on Renal Sodium Excretion (INDORSE)

2018年1月9日 更新者：University Health Network, Toronto

Effects of DPP-4 Inhibitor Therapy on Renal Sodium Handling and Renal Hemodynamics in Type 2 Diabetes Patients. The INDORSE Study: Inhibition of Dipeptidyl Peptidase IV: Outcomes on Renal Sodium Excretion

Background: Dedicated renal hemodynamic and renal function studies are lacking for DPP-4 inhibitors in patients with Type 2 diabetes; accordingly little is known regarding the mechanisms mediating the renal effects of DPP-4 inhibitors in humans.

Objectives: To evaluate the effect of DPP-4 inhibition acutely (single dose) and following short-term therapy (28 days) on renal sodium handling and renal hemodynamics and function in patients with type 2 diabetes and systolic hypertension.

Design: double-blind, randomized, placebo-controlled trial, Phase IV.

Patient population: 32 patients with Type 2 diabetes, HbA1c (6.5%-9%), with systolic blood pressure ranging from 120-160 mmHg.

Intervention: subjects will be randomized (1:1) to either sitagliptin (100 mg daily) or to placebo (1 tablet daily) for 28 days.

Endpoints: Fractional excretion of sodium, renal function, and renal hemodynamics.

研究概览

地位

完全的

条件

干预/治疗

详细说明

Background: DPP-4 inhibition improves glycemic control, modestly reduces blood pressure and may also reduce albuminuria in patients with Type 2 diabetes; effects which occur without significantly modifying heart rate or body weight. While preclinical studies have demonstrated that DPP-4 inhibition acutely increases urinary sodium excretion in addition to other favorable renal effects (anti-inflammatory, anti-proteinuric), few studies have examined the renal effects of DPP-4 inhibition either acutely or following short-term therapy in humans with type 2 diabetes. Considering the world-wide prevalence of Type 2 diabetes and the increasing use of DPP-4 inhibitors amongst patients, it is important to ascertain potential non-glycemic effects of DPP-4 inhibitors including those within the kidney.

Study Objectives: To determine effect(s) of DPP-4 inhibition on tubular sodium handling, renal hemodynamics, and renal function.

Study Design: double-blind, randomized, placebo-controlled trial, Phase IV.

Study Patients: 32 patients with Type 2 Diabetes and Systolic Hypertension (SBP 120-160 mmHg).

Endpoints: Fractional excretion of sodium, renal function (measured GFR), renal hemodynamics (effective renal plasma flow, filtration fraction, renal blood flow, renal vascular resistance), systemic hemodynamics (non-invasive cardiac monitoring), plasma neurohormones, urinary vasoactive mediators, markers of free radical stress.

研究类型

介入性

注册 (实际的)

36

阶段

  • 第四阶段

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习地点

  • 加拿大
    • Ontario
      • Toronto、Ontario、加拿大、M5G 2N2
        • University Health Network - Division of Nephrology

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 至 70年 (成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Individuals of 18-70 years of age,
  • with Type 2 Diabetes,
  • with an HbA1c (6.5%-9%),
  • and with a systolic blood pressure (120-160 mmHg).

Exclusion Criteria:

  • Individuals with:

    1. Type 1 Diabetes,
    2. eGFR <50mL/min/1.73m,
    3. pregnancy or breast feeding,
    4. significant cardiac, pulmonary or liver disease,
    5. prior history of pancreatitis, medullary thyroid cancer, multiple endocrine neoplasia syndromes,
    6. SBP >161 mmHg, 7) DBP >100 mmHg,
    7. alcohol or substance abuse,
    8. states of secondary hypertension.

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

  • 主要用途：其他
  • 分配：随机化
  • 介入模型：并行分配
  • 屏蔽：三倍

武器和干预

参与者组/臂
干预/治疗
实验性的：Experimental arm
sitagliptin (DPP-4 inhibitor) oral tablet (100 mg); Januvia; administered once daily for 28 days
药品：Sitaglitpin
Oral DPP-4 inhibitor, 100 mg tablet administered once daily for 28 days
其他名称：
  • 亚努维亚
安慰剂比较：Placebo arm
placebo (no medicinal ingredients) oral tablet (100 mg); administered once daily for 28 days
其他：Placebo
Oral tablet (no medicinal ingredients) administered once daily for 28 days

研究衡量的是什么？

主要结果指标

结果测量
措施说明
大体时间
Percent Change in Fractional Excretion of Sodium (FENA)
大体时间：3 Hrs post-administration after 1 month and after 1 dose
FENA at 3Hrs post-study drug administration after 1 month compared to FENA at 3Hrs post-study drug administration after 1 dose expressed as percent change, sitagliptin vs. placebo
3 Hrs post-administration after 1 month and after 1 dose

次要结果测量

结果测量
措施说明
大体时间
Change in Glomerular Filtration Rate (GFR)
大体时间：3 Hrs post-administration after 1 month and after 1 dose
Measured GFR (Inulin Clearance) at 3Hrs post study-drug after 1 month compared to Measured GFR at 3Hrs post-study drug after 1 dose, sitagliptin vs. placebo
3 Hrs post-administration after 1 month and after 1 dose
Change in Fractional Excretion of Lithium (FELi)
大体时间：3 Hrs post-administration after 1 month and after 1 dose
FELi at 3 Hr post-study drug administration after 1 month compared to FELI at 3hrs post-study drug administration after 1 dose, sitagliptin vs. placebo
3 Hrs post-administration after 1 month and after 1 dose
Change From Baseline in SDF-1alpha^1-67 (Intact) Measured by Immunoaffinity and Tandem Mass Spectrometry
大体时间：3 Hr vs. baseline after 1 dose
Plasma concentration of SDF-1alpha^1-67 (intact) measured by quantitative mass spectrometry methods after antibody-based affinity enrichment, sitagliptin vs. placebo
3 Hr vs. baseline after 1 dose
Change From Baseline in SDF-1alpha^3-67 (Truncated) Measured by Tandem Mass Spectrometry With Antibody-based Affinity Enrichment
大体时间：3Hrs vs baseline after 1 dose
Plasma concentration of SDF-1alpha^3-67 (intact) measured by quantitative mass spectrometry methods after antibody-based affinity enrichment, sitagliptin vs. placebo
3Hrs vs baseline after 1 dose
Change in Systolic Blood Pressure (SBP), Non-invasive Cardiac Output Monitoring
大体时间：3 Hrs post-administration after 1 month and after 1 dose
SBP by Non-Invasive cardiac output monitoring at 3Hrs post- study drug administration after 1 month compared to SBP by Non-invasive cardiac output monitoring at 3Hrs after 1 dose, sitagliptin vs placebo
3 Hrs post-administration after 1 month and after 1 dose
Change in Effective Renal Plasma Flow (ERPF)
大体时间：3 Hrs post-administration after 1 month and after 1 dose
ERPF (para-aminohippurate clearance) 3Hrs post-study drug administration after 1 month compared to ERPF at 3Hhrs post-study drug administration after 1 dose, sitagliptin vs placebo
3 Hrs post-administration after 1 month and after 1 dose

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

University Health Network, Toronto

合作者

Merck Sharp & Dohme LLC

调查人员

  • 研究主任：Julie Lovshin, MD,PhD、Lunenfeld Tanenbaum Reserach Institute, Divsion of Endocrinology and Metabolism, University of Toronto
  • 首席研究员：David I Cherney, MD,PhD、Division of Nephrology, University Health Network, University of Toronto

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始

2015年3月1日

初级完成 (实际的)

2016年6月1日

研究完成 (实际的)

2017年1月1日

研究注册日期

首次提交

2015年3月30日

首先提交符合 QC 标准的

2015年4月1日

首次发布 (估计)

2015年4月2日

研究记录更新

最后更新发布 (实际的)

2018年4月5日

上次提交的符合 QC 标准的更新

2018年1月9日

最后验证

2018年1月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • 14-8616

此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.

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