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临床试验/NCT02830789
NCT02830789已完成不适用

Investigation of the Optimal Calcium Supplement Following Roux-en-Y Gastric Bypass in Order to Treat Secondary Hyperparathyroidism: A Clinical Randomized Trial

University of Aarhus2 个研究点 分布在 1 个国家目标入组 38 人开始时间: 2016年12月最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
入组人数
38
试验地点
2
主要终点
Parathyroid Hormone

研究概览

简要总结

This study investigates whether calcium citrate or calcium carbonate are the optimal supplement to treat secondary hyperparathyroidism following Roux-en-Y gastric bypass operation.

Half of the participants will be randomized to receive calcium citrate, while the other half will receive calcium carbonate. The study will be double blinded.

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
Double (Participant, Investigator)

入排标准

年龄范围
20 Years 至 70 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Roux-en-Y gastric bypass operation ≥12 months ago
  • Parathyroid hormone > 6.9 pmol/l
  • Vitamin D > 50 nmol/l
  • P-Calcium [1.18-1.32] mmol/l

排除标准

  • Liver disease
  • Renal disease
  • Hypercalcemia
  • Untreated thyroid disease
  • Parathyroid disease except secondary hyperparathyroidism
  • Use of diuretics, bisphosphonates, calcitonin, teriparatide, oral corticosteroids, anabolic steroids, calcimimetics, lithium, strontium, denosumab or anticonvulsants within 1 year of inclusion
  • abusing alcohol

结局指标

主要结局

Parathyroid Hormone

时间窗: Change from baseline at 6 weeks and 12 weeks

次要结局

  • Se-ion-calcium(Change from baseline at 6 weeks and 12 weeks)
  • P-25-OH-vitamin D(Change from baseline at 6 weeks and 12 weeks)
  • P-calcitriol(Change from baseline at 6 weeks and 12 weeks)
  • 24h U-calcium(Change from baseline at 12 weeks)
  • P-magnesium(Change from baseline at 6 weeks and 12 weeks)
  • Vitamin D binding protein(Change from baseline at 6 weeks and 12 weeks)
  • P-bone specific alkaline phosphatase(Change from baseline at 6 weeks and 12 weeks)
  • 24h U-phosphate(Change from baseline at 12 weeks)
  • P-phosphate(Change from baseline at 6 weeks and 12 weeks)
  • P-24,25-(OH)2-vitamin D(Change from baseline at 6 weeks and 12 weeks)
  • Procollagen type 1 N-terminal propeptide (P1NP)(Change from baseline at 6 weeks and 12 weeks)
  • Cross-linked C-telopeptide (CTX)(Change from baseline at 6 weeks and 12 weeks)

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Lene Ring Madsen

PhD student, MD

University of Aarhus

研究点 (2)

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