在患有肥胖相关喘的儿童中服用维生素D口服替代剂:VDORA1随机临床试验
Brian O'Sullivan1, Song Ounpraseuth2, Laura James2
1Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, USA.
Clinical pharmacology and therapeutics
|November 6, 2023
概括
这项研究发现,对于患有喘和肥胖的儿童来说,安全有效的维生素D剂量 (负载量为50,000 IU,每天8,000 IU). 这种方案有助于达到最佳的维生素D水平,这对于管理相关健康状况至关重要.
科学领域:
- 儿科内分泌学 儿科内分泌学
- 营养科学 营养科学
- 呼吸系统医学 呼吸系统医学
背景情况:
- 患有喘和肥胖的儿童往往具有较低的维生素D水平.
- 对于这一特定人群来说,最佳的维生素D替代剂量尚未确立.
研究的目的:
- 为了确定与肥胖相关的喘儿童的安全有效的口服维生素D剂量.
- 在这个儿科队列中,达到至少40ng/mL的血清维生素D水平.
主要方法:
- 一个前性的多站点随机受控试验,涉及患有喘和肥胖的儿童和青少年 (BMI ≥85百分位).
- 第1部分:剂量确定研究评估了16周内四种维生素D疗法.
- 第二部分:与标准护理 (SOC) 相比,确定了替代剂量 (50,000 IU负载+8,000 IU每天).
主要成果:
- 在第1部分,在特定队列中的50-72.7%的参与者实现了目标维生素D水平,与SOC不同.
- 在第二部分,接受替代剂量的参与者中有78.6%达到血清25(OH) D的目标水平,而SOC组的这一比例为0%.
- 没有报告与维生素D补充相关的严重不良事件.
结论:
- 一种每天50000 IU的加载剂量,其次是每天8000 IU的治疗方案被证实是安全有效的,用于增加肥胖和喘儿童的维生素 D 水平.
- 这种剂量策略成功地在研究的儿科群体中达到标血清25(OH) D水平 (≥40 ng/mL).
- 这些发现解决了对面临肥胖相关健康问题的儿童维生素D补充剂的重大知识差距.
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