The Effects of Oral Vitamin D Supplementation on the Prevention of Peritoneal Dialysis-related Peritonitis
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 入组人数
- 60
- 试验地点
- 1
- 主要终点
- Recruitment rate of the trial
研究概览
简要总结
This is a pilot randomized, controlled trial of Vitamin D supplementation in patients on peritoneal dialysis to determine the feasibility of a future full-scale RCT exploring if oral administration of vitamin D3 could reduce the risk of subsequent Peritoneal dialysis-related (PD-related) peritonitis.
Aims of the study:
Aim 1: To determine the feasibility of oral vitamin D supplementation among PD patients who have recovered from a recent episode of peritonitis.
Aim 2: To examine the effect of vitamin D supplementation on the risk for peritonitis among patients on peritoneal dialysis.
详细描述
Patients will be screened for eligibility one month after the onset of PD-related peritonitis, those who meet the inclusion criteria will be enrolled in this study.
All consenting participants will be randomized into the vitamin D treatment group or the control group, general information and baseline biochemistry data would be collected. Patients in the treatment group will be treated with oral Cholecalciferol (2000IU/day) apart from routine treatment for PD. Those in the control group will receive routine treatment for PD. Both groups will be followed for 12 months. During the observational period, any onset of subsequent peritonitis will be recorded, serum 25(OH)D, biochemical indices will be measured every 3 months. Follow up would take place frequently, any outcome events would be recorded.
Aims and hypotheses:
Aim 1: To determine the feasibility of oral vitamin D supplementation among PD patients who have recovered from a recent episode of peritonitis.
Hypothesis1: A large、full-scale randomized controlled trail on the effects of oral vitamin D on the risk for peritonitis among PD patients is feasible.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 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
- •Medically stable and receiving peritoneal dialysis (PD) for>1 months
- •Age at least 18 years.
- •Serum 25(OH)D<75nmol/l (30ng/ml)
- •Adequate dialysis on evaluation, weekly Kt/V ≥ 1.5 and no clinical uremic symptoms
排除标准
- •Receive Vitamin D2/D3 or drugs known to alter serum 25-hydroxyvitamin D (25(OH)D) levels during the previous 12 months;
- •History of allergic reaction to Cholecalciferol;
- •Current or past malignant disease, active hepatitis or hepatic failure, acute systemic infection, active autoimmune diseases, severe digestive malabsorption or eating disorder, HIV/AIDS;
- •A high probability (assessed by the recruiting physician) of receiving a kidney transplant or transferring to hemodialysis (HD) or drop-out due to socioeconomic causes within 6 months;
- •Pregnant or breastfeeding;
研究组 & 干预措施
Treatment group
Patients will receive oral Cholecalciferol (2000IU qd) apart from routine therapy for PD
干预措施: Cholecalciferol (2000iu qd) (Drug)
Treatment group
Patients will receive oral Cholecalciferol (2000IU qd) apart from routine therapy for PD
干预措施: Routine therapy for PD (Other)
Control group
Patients randomized to the placebo group will receive routine therapy for PD.
干预措施: Routine therapy for PD (Other)
结局指标
主要结局
Recruitment rate of the trial
时间窗: From date of randomization until 1 year after the randomization of last participant.
Recruitment rate of patients screened for the trial measured by percentage.
Retention rate of the trial
时间窗: From date of randomization until 1 year after the randomization of last participant
Retention rate of included patients in the trial measured by percentage.
Change in serum 25(OH)D level
时间窗: From date of randomization until 1 year after the randomization of last participant
Change in serum 25(OH)D level between baseline and 12 months measured by ng/ml.
Adherence rate of the trial
时间窗: From date of randomization until 1 year after the randomization of last participant.
Percentage of participants adherent to the dosing regimen of vitamin D in the trial.
Incidence of adverse events
时间窗: From date of randomization until 1 year after the randomization of last participant.
Incidence of adverse events measured by number of events per patient-month
次要结局
- Probability of participants who recovered after subsequent peritoneal dialysis related peritonitis.(From date of randomization until the date of documented death, assessed up to 1 year.)
- Difference in risk of a subsequent peritonitis measured by Hazard Ratio.(From date of randomization until the date of subsequent peritonitis, assessed up to 1 year.)
- Risk of participants who died because of subsequent peritoneal dialysis related peritonitis.(From date of randomization until the date of documented death, assessed up to 1 year.)
- Risk of participants who are transitioned to hemodialysis because of subsequent peritoneal dialysis related peritonitis.(From date of randomization until the date of documented transition to hemodialysis because of peritoneal dialysis related peritonitis, assessed up to 1 year.)
研究者
Dong Jie
Director of PD center
Peking University First Hospital