Condition category
Nutritional, Metabolic, Endocrine
Date applied
Date assigned
Last edited
Retrospectively registered
Overall trial status
Recruitment status
No longer recruiting

Plain English Summary

Background and study aims
Iron deficiency or anemia is the most common nutritional deficiency in the world. Infants and young children are at the highest risk of anemia because they have higher iron requirements. Iron syrup or drops are good in preventing or treating anemia but most children do not like them because of bad taste, therefore compliance is poor. There is an alternative method to treat anemia. Iron and micronutrients in powder (MNP) can be sprinkled and mixed with a portion of the baby food. They do not change the color or the taste of food. They are well accepted. Research shows that MNPs are good in reducing anemia. However, there is no agreement about how much should be used and for how long. This study aims to investigate the best usage of MNPs, with respect to the number of sachets, duration and form (daily or intermittent).

Who can participate?
Children 6-11 months old, living in the city of Cajamarca, Peru, born at term, with birth weight > 2.5 kg, without severe illness, severe anemia and severe malnutrition can participate.

What does the study involve?
Children are randomly allocated to one of four groups using a computer program. They will receive supplementation daily or weekly for 6 months or one year. All children will be followed for 12 months . There are blood tests at the beginning, during and after the study. All information collected are kept confidential.

What are the possible benefits and risks of participating?
Benefits include free examination by the pediatrician, supplements, lab analyses and health care. The information will help decide the best supplementation for small children. The dose of supplements is based on international recommendations of daily intake of nutrients. There is a low risk that blood drawn may cause a hematoma.

Where is the study run from?
The study is conducted in Cajamarca, Peru.

When is the study starting and how long is it expected to run for?
September 2011 to June 2013.

Who is funding the study?
Micronutrient Initiative, Canada
Lab analyses are supported by Sight and Life, Switzerland

Who is the main contact?
Dr. David Loza

Trial website

Contact information



Primary contact

Dr Nelly Zavaleta


Contact details

Instituto de Investigación Nutricional
Av. La Molina 1885 - La Molina
Lima 12

Additional identifiers

EudraCT number number

Protocol/serial number


Study information

Scientific title

Defining criteria to establish the optimum scheme of supplementation with micronutrient powder in children: unblinded randomized controlled trial


Study hypothesis

To investigate what is the optimal scheme of supplementation with MNP, regarding the number of sachets, duration and form of supplementation (daily or intermittent).

Ethics approval

1. Instituto de Investigacion Nutricional (IIN) Review Board (IRB) approved on the 14-03-2011: Reference 308-2011/CEI-IIN
2. Peruvian National Institute of Health authorized on the 10-06-2011. Reference 506-2011-DG-OGITT-OPE/INS

Study design

Unblinded randomized controlled trial

Primary study design


Secondary study design

Randomised controlled trial

Trial setting

Not specified

Trial type


Patient information sheet

Not available in web format, please use the contact details below to request a patient information sheet




There are 4 groups of supplementation:
1. Children from 6 to 11 months of age, who consume the micronutrient powder supplement intermittently for 6 months (90 doses), will have a significant decrease in the prevalence of anemia and micronutrient deficiency (control group)
2. Children 6 to 11 months of age, who consume the micronutrient supplement powder intermittently for 12 months (180 doses), will have a greater decrease in the prevalence of anemia and micronutrient deficiency compared with the control group. (Group I)
3. Children 6 to 11 months of age, who consume the micronutrient supplement powder daily for 6 months (180 doses), will have a greater decrease in the prevalence of anemia and micronutrient deficiency compared with the control group. (Group II)
4. Children 6 to 11 months of age, who consume the micronutrient supplement in powder on a daily basis for 12 months (360 doses), will have a greater decrease in the prevalence of micronutrient deficiency anemia and the control group and groups I and II. (Group III).
The participation in a group is randomized, using a computer program

Intervention type



Not Applicable

Drug names

Primary outcome measures

Anemia prevalence. All children are followed for 12 months, at entry and every month children are examined by a pediatrician at the outpatient clinic, every 2 weeks a field worker visits the child´s home to record compliance and morbidity, at entry and at the end of supplementation a venous blood sample of 5 ml is taken to measure hemoglobin, and micronutrients. In 2 more times we will take a drop of blood from the finger to measure hemoglobin.

Secondary outcome measures

1. Growth (weight and length)
2. diarrhea prevalence
3. micronutrient status (ferritin, transferrin receptors)
4. vitamin A
5. vitamin B12
6. zinc and folate status
7. inflamatory markers (CRP, AGP)

Overall trial start date


Overall trial end date


Reason abandoned


Participant inclusion criteria

1. Children between 6 months and 11 months and 29 days old
2. Residents in the city of Cajamarca and communities near the Health Center Baños del Inca
3. Born at term
4. Birth weight ≥ 2500 g
5. Healthy
6. Hemoglobin> 8 g/dL (corrected for altitude)
7. Weight / length> -2 SD
8. Parents agree and sign the informed consent form

Participant type


Age group




Target number of participants


Participant exclusion criteria

1. Children younger than 6 months, or more than 12 months
2. Non-residents in Cajamarca (intervention site)
3. Children with initial hemoglobin below 8 g/dL (corrected for altitude) will be evaluated by the doctor to discard additional pathology and will be treated according to Ministry of Health standards
4. Weight/length below - 2 DE
5. Chronic, congenital or severe diseases
6. Parents do not sign the informed consent form

Recruitment start date


Recruitment end date



Countries of recruitment


Trial participating centre

Instituto de Investigación Nutricional
Lima 12

Sponsor information


Micronutrient Initiative (Canada)

Sponsor details

c/o Kimberly Harding
180 Elgin Street
Suite 1000
K2P 2K3
+1 613.782.6800

Sponsor type




Funder type


Funder name


Alternative name(s)

Funding Body Type

Funding Body Subtype


Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Results - basic reporting

Publication summary

Publication citations

Additional files

Editorial Notes