Stopping Postpartum Vitamin A Supplementation: Missing Concealed Benefit
Stopping Postpartum Vitamin A Supplementation: Are we Missing Concealed Benefit?
研究概览
地位
条件
详细说明
研究类型
注册 (实际的)
阶段
- 阶段2
- 第三阶段
联系人和位置
学习地点
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Dhaka、孟加拉国、1212
- International Centre for Diarrhoeal Disease Research, Bangladesh
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Pregnant women >-18 years of age with low-risk obstetric
Exclusion Criteria:
- Pregnant women expecting a multiple birth
- Take vitamin A supplements during postpartum apart from study intervention
- Premature birth
- Newborn babies with birth defects and / or other serious diseases
学习计划
研究是如何设计的?
设计细节
- 主要用途:预防
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:四人间
武器和干预
参与者组/臂 |
干预/治疗 |
---|---|
实验性的:Early postpartum vitamin A suppl.
Single dose 200,000 IU vitamin A supplementation at <3-day and placebo supplementation at 6-wk postpartum.
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Single dose 200,000 IU vitamin A supplementation at <3-day and placebo supplementation at 6-wk postpartum.
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实验性的:Late postpartum vitamin A suppl.
Placebo supplementation at <3-day and single dose 200,000 IU vitamin A supplementation at 6-wk postpartum.
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Placebo supplementation at <3-day and single dose 200,000 IU vitamin A supplementation at 6-wk postpartum.
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实验性的:Early & late postpartum vitamin A suppl
200,000 IU vitamin A supplementation, both at <3-day and 6-wk postpartum
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200,000 IU vitamin A supplementation, both at <3-day and 6-wk postpartum
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实验性的:No postpartum vitamin A suppl.
Placebo supplementation, both at <3-day and 6-wk postpartum.
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Placebo supplementation, both at <3-day and 6-wk postpartum.
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Breast milk immune regulators
大体时间:Four months
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immune regulators in breast milk e.g. B-cell activating factor (BAFF); IL-7; Lactoferrin; sCD14, sIgA and TGF-beta levels at three time points-
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Four months
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Infant T helper cell immune responses
大体时间:Four months
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Mitogen stimulated whole blood IL-10, IL-13, IFN-gamma, IL-21 and IL-17 responses at two time points-
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Four months
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Infant innate immune responses
大体时间:Four months
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Tall like receptor (TLR)-4 and TLR9 agonist stimulated whole blood TNF-alpha and IL-10 and IFN-alpha responses at two time points-
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Four months
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Infant vaccines (Hepatitis B, Tetanus and Oral polio) specific antibody responses
大体时间:Four months
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Hepatitis B and Tetanus Toxoid specific plasma cell IgG responses at 15 wk of age (1wk after three doses of pentavalent vaccination) And Hepatitis B and Tetanus Toxoid specific IgG in plasma and Polio (3 serotypes) specific secretory IgA (sIgA) in stool at two time points-
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Four months
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Relative abundance of infant gut microbial community and gut inflammatory markers
大体时间:Four months
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Next generation sequencing (NGS) of bacterial 16s rDNA (+qPCR) in extracted stool samples and assessment of infant gut inflammatory markers e.g. human β-defensin-2 (HBD2); Neopterin; α-1-antitrypsin (AAT); neutrophil gelatinase-associated lipocalin (NGAL)-2 and S100A at two time points-
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Four months
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其他结果措施
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Infant vitamin A status
大体时间:Four months
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Infant plasma vitamin A status at 7 wk and 15 wk of age
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Four months
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Infant growth
大体时间:Four months
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Infant Weight-for-Age z-score (WAZ) at 7 wk and 15 wk of age
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Four months
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Infant morbidity
大体时间:Four months
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Infant morbidity status up to four months of age
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Four months
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Mother vitamin A status
大体时间:Four months
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Plasma Retinol Binding Protein (RBP) and breast milk vitamin A level at two time points-
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Four months
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合作者和调查者
调查人员
- 首席研究员:Shaikh M Ahmad, Ph.D、International Centre for Diarrhoeal Disease Research, Bangladesh
出版物和有用的链接
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.
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