An Open-Label, Randomised Study Using Cinacalcet to Improve Achievement of Kidney Disease Outcomes Quality Initiative (K/DOQI) Targets in Patients With ESRD
试验速览
- 阶段
- 4 期
- 状态
- 已完成
- 发起方
- Amgen
- 入组人数
- 552
- 主要终点
- Number of Participants With Mean PTH ≤ 300 pg/mL
研究概览
简要总结
The purpose of this study is to evaluate the ability of a treatment strategy, that includes cinacalcet for the management of secondary hyperparathyroidism, to control parathyroid hormone (PTH) compared with the standard of care.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —(Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •ESRD patients requiring maintenance dialysis (haemodialysis, haemodiafiltration, haemofiltration, or peritoneal dialysis) for at least 1 month
- •The mean of 2 iPTH determinations within 21 days before randomization and drawn at least 2 days apart must be greater than or equal to 300 pg/mL (31.8 pmol/L) and less than 800 pg/mL (84.8 pmol/L). If biPTH is determined, the mean levels must be greater than or equal to 150 pg/mL (15.9 pmol/L) and less than 410 pg/mL (43.5 pmol/L)
- •The mean of 2 serum calcium determinations (corrected for albumin) drawn on the same day as the PTH determinations must be greater than or equal to 8.4 mg/dL (2.1 mmol/L)
排除标准
- •Have an unstable medical condition, defined as having been hospitalised, other than for dialysis vascular access revision, within 30 days before day 1, or otherwise unstable in the judgment of the investigator
- •Have had a parathyroidectomy in the 6 months before day 1
- •Have received vitamin D therapy for less than 21 days before day 1 or required a change in prescribed vitamin D brand or dose within 21 days before day
- •If subjects are not prescribed vitamin D therapy, they must remain free of vitamin D therapy for the 21 days before day
- •Received, within 21 days before day 1 of the dose titration phase, therapy with medications that are predominantly metabolized by the enzyme CYP2D6 and have a narrow therapeutic index (e.g., flecainide, vinblastine, thioridazine, and most tricyclic antidepressants). The tricyclic antidepressant amitriptyline is permitted. - Experienced a myocardial infarction within 3 months prior to day 1
- •Are currently enrolled in, or have not yet completed at least 30 days before day 1, other invasive investigational device or investigational drug trials, or are receiving other investigational agents (experimental dialysis machines are acceptable)
- •Have a gastrointestinal disorder that may be associated with impaired absorption or orally administered medications or an inability to swallow tablets
研究组 & 干预措施
Standard of care
Subjects randomised to the standard care arm are to receive appropriate therapy in accordance with the investigator's practice in an attempt to achieve the K/DOQI PTH, serum calcium, phosphorus, and Ca x P treatment targets.
干预措施: Standard of care (Other)
Cinacalcet
Treatment with cinacalcet will be initiated at a dose of 30 mg/day. Possible daily doses of cinacalcet are 30, 60, 90, 120, and 180 mg. Dose escalation of cinacalcet may occur based on iPTH values.
干预措施: cinacalcet (Drug)
结局指标
主要结局
Number of Participants With Mean PTH ≤ 300 pg/mL
时间窗: Efficacy Assessment Phase (weeks 17 to 23)
Number of participants with mean parathyroid hormone (PTH) ≤ 300 pg/mL during the efficacy assessment phase
次要结局
- Number of Participants With Mean Ca x P < 55 mg^2/dL^2 and iPTH ≤ 300 pg/mL(Efficacy Assesment Phase (weeks 17-23))
- Number of Participants With Mean Ca x P < 55 mg^2/dL^2(Efficacy Assessment Phase (weeks 17 to 23))
- Number of Participants With Mean Serum Ca < 9.5 mg/dL(Efficacy Assessment Phase (weeks 17-23))
- Number of Participants With Mean Serum P < 5.5 mg/dL(Efficacy Assessment Phase (weeks 17 to 23))
