NCT07139821尚未招募不适用
Dietary Iron Requirements in US Adults
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 入组人数
- 300
- 试验地点
- 2
- 主要终点
- Iron isotope composition in blood
研究概览
简要总结
Dietary Reference Intakes (DRIs) for iron are based on a relatively small number of studies in European populations. This research study will determine iron needs in a representative sample of adults living in the US using the iron isotope dilution technique. Following administration and equilibration of a stable iron isotope, participants will be followed for a 12 week study period. Blood will be collected every 4 weeks and the isotopic composition will be determined. Results will help update dietary iron guidelines making sure they better match the specific needs of the US population.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 50 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Males and premenopausal females age 18-50 y
- •Previously participated in an iron stable isotope study or willing to consume an oral stable iron isotope and undergo a one-year equilibration period
- •Willing to refrain from iron-containing supplements for the duration of the study
- •Willing to refrain from tobacco smoking for the duration of the study
- •Have not donated blood 3 months prior to the start of the study and willing to refrain from donating blood for the duration of the study
- •Willing to have blood stored for future use
- •Able and willing to comply with study requirements and consent to participate
排除标准
- •Females: pregnant or lactating or plans to become pregnant during the study period
- •Inability to provide informed consent and engage in informed consent procedures
- •Plans to relocate outside the study area
结局指标
主要结局
Iron isotope composition in blood
时间窗: 12 weeks
Tracer-to-tracee rate in venous blood samples collected at multiple time points
次要结局
未报告次要终点
研究者
研究点 (2)
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