Prenatal Iron and Malaria Study (PIMAL)
2013年5月28日 更新者:London School of Hygiene and Tropical Medicine
A Randomised Trial to Assess the Safety and Efficacy or Iron Supplementation in Kenyan Pregnant Women
The purpose of this study is to compare the presence of Plasmodium infection in parturient women who antenatally received a combination of iron-fortified foods with iron supplements versus iron-fortified foods only.
研究概览
详细说明
As per recommendations by the World Health Organization (WHO), iron supplementation in children should be restricted in malaria-endemic areas because of concerns that it can lead to an increased burden of malaria.
Universal iron supplementation continues to be recommended, however, for women during pregnancy and 3 months postpartum.
Observational studies have shown that iron deficiency in parturient women is associated with a marked reduction in the prevalence and density of malarial parasites in the placenta.
Plasmodium infections in pregnant women have devastating effects on the foetus and neonate, causing low birth weight, intrauterine growth retardation, preterm delivery, spontaneous abortion, stillbirth and neonatal mortality.
Based on our previous work, the Kenyan government is currently drafting legislation for mandatory iron fortification of industrially milled flour.
Implementation of the new fortification policy means that pregnant women will receive iron through a combination of fortified foods and supplementation.
The investigators are concerned about the safety of the high iron intake resulting from such a policy.
研究类型
介入性
注册 (实际的)
470
阶段
- 第四阶段
联系人和位置
本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。
学习地点
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Nairobi、肯尼亚
- University of Nairobi
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参与标准
研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
15年 至 45年 (孩子、成人)
接受健康志愿者
是的
有资格学习的性别
女性
描述
Inclusion Criteria:
- Women aged 15-45 years resident in the predefined study area
- Pregnant, with gestational age <23 weeks
Exclusion Criteria:
- Failure to provide a blood sample
- Initial haemoglobin concentration <90 g/L
- Reported medical history suggestive of sickle cell anaemia, epilepsy, diabetes
- Obstetric history suggestive of eclampsia or pre-eclampsia
- Obvious mental retardation or metabolic disorder;
- No written consent
- Carrying multiples
- Woman planning to leave the homestead or to be absent for prolonged periods in the course of the pregnancy or within a 1-month period thereafter
- Woman planning to deliver outside the research clinic.
学习计划
本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。
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 |
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安慰剂比较:安慰剂
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Daily supplementation with iron (60 mg) as ferrous sulphate
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实验性的:Supplemental iron
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Daily supplementation with iron (60 mg) as ferrous sulphate
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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 |
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Maternal Plasmodium infection
大体时间:Parturition
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Assessed by LDH- and HRP2-based dipstick test and PCR
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Parturition
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
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Serum non-transferrin bound iron concentration
大体时间:3 h after ingestion of first supplement with either iron or placebo
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3 h after ingestion of first supplement with either iron or placebo
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Neonatal iron stores
大体时间:At 1 month of age
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Assessed by plasma ferritin concentration, restricted to infants without inflammation
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At 1 month of age
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Maternal iron status
大体时间:At 1 month after delivery
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To be assessed by haemoglobin concentrations, prevalence of iron deficiency anaemia (plasma ferritin concentration <12 µg/L) and iron stores (ratio of ferritin:transferrin receptor concentrations); indicators based on ferritin and/or transferrin receptor will be restricted to those without inflammation.
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At 1 month after delivery
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Maternal intestinal pathogens
大体时间:At 1 month after delivery
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At 1 month after delivery
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员:Hans Verhoef, PhD、London School of Hygiene and Tropical Medicine
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
一般刊物
- Mwangi MN, Roth JM, Smit MR, Trijsburg L, Mwangi AM, Demir AY, Wielders JP, Mens PF, Verweij JJ, Cox SE, Prentice AM, Brouwer ID, Savelkoul HF, Andang'o PE, Verhoef H. Effect of Daily Antenatal Iron Supplementation on Plasmodium Infection in Kenyan Women: A Randomized Clinical Trial. JAMA. 2015 Sep 8;314(10):1009-20. doi: 10.1001/jama.2015.9496.
- Mwangi MN, Maskey S, Andang o PE, Shinali NK, Roth JM, Trijsburg L, Mwangi AM, Zuilhof H, van Lagen B, Savelkoul HF, Demir AY, Verhoef H. Diagnostic utility of zinc protoporphyrin to detect iron deficiency in Kenyan pregnant women. BMC Med. 2014 Nov 26;12:229. doi: 10.1186/s12916-014-0229-8.
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始
2011年10月1日
初级完成 (实际的)
2013年4月1日
研究完成 (实际的)
2013年5月1日
研究注册日期
首次提交
2011年3月2日
首先提交符合 QC 标准的
2011年3月2日
首次发布 (估计)
2011年3月3日
研究记录更新
最后更新发布 (估计)
2013年5月29日
上次提交的符合 QC 标准的更新
2013年5月28日
最后验证
2013年5月1日
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.
iron的临床试验
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Rigshospitalet, DenmarkHvidovre University Hospital; Bispebjerg Hospital; Regionshospitalet Viborg, Skive; Gentofte Hospital 和其他合作者未知
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Centre Francois BaclesseRoche Pharma AG; Hospira, now a wholly owned subsidiary of Pfizer; Vifor Pharma终止