Effect of calcium supplementation on iron status in children aged 6 to 8 years old supplemented with iron

A randomized controlled trial investigating the effect of calcium supplementation on iron status in children aged 6 to 8 years old supplemented with iron in Sucre, Bolivia

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN48567380

Enrollment

194

Registered

2011-06-29

Start date

2010-08-12

Completion date

Unknown

Last updated

2016-10-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Iron deficiency anemia, iron-calcium interaction Nutritional, Metabolic, Endocrine Iron deficiency anaemia

Interventions

1. This study was conducted in a school located in a low middle socio-economic sector in the Municipality of Sucre, Department of Chuquisaca, Bolivia 2. Age criteria (6 to 8 years) was based on the in

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Apparently healthy 2. 6 to 8 years old 3. Not participating in other clinical studies 4. Public education

Exclusion criteria

Exclusion criteria: 1. Severe anemia: hemoglobin below 8.3 g/dL (equivalent to 20 mg/L 3. Illiterate parents 4. Children with micronutrient treatment in the past 6 months

Design outcomes

Primary

Measure	Time frame
Iron status: 1. Hemoglobin 2. Serum ferritin 3. Transferrin Receptor	—

Secondary

Measure	Time frame
1. C-Reactive Protein 2. Nutritional state by anthropometry 3. Macronutrient and micronutrient daily intake 4. Total body iron	—

Countries

Bolivia

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026