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Directly Observed Iron Supplementation to Treat Anemia

2014-08-27 03:13:27 | BioPortfolio

Summary

India continues to be one of the countries with very high prevalence of anemia. In fact, National Family Health Survey-3 (NFHS-3,2005-06) revealed increasing prevalence of anemia in women and children, since NFHS-2 in 1998-99. In the backdrop of this alarming trend, the aim of this trial is to assess the effectiveness of a community based anemia management intervention ( curative and holistic) delivered to rural anemia women and girls(aged 13 years and above)in remote hilly villages (unit of randomization) in terms of change in anemia prevalence (unit of analysis) after 3 months of iron supplementation. This trial with a therapeutic component of "Directly Observed Home Based daily Iron Therapy (DOHBIT)" by local village volunteers is conceived as a whole community approach to improve the hemoglobin status of affected patients in remote villages.

Description

To combat iron deficiency anemia, the challenge is not so much knowing "what" to do, but to understand "how" to implement effective and sustainable interventions. In this perspective, the aim of this trial is to assess the effectiveness of a community based anemia management therapeutic intervention delivered to rural anemic women (aged 13 years and above) in remote hilly villages (unit of randomization) in terms of change in anemia prevalence (unit of analysis) after 3 months of iron supplementation.

The intervention programme "Directly Observed Home Based daily Iron Therapy"(DOHBIT) by local village volunteers is conceived as a whole community approach to improve the hemoglobin status of affected patients in remote villages. A cluster-randomized trial will be thus the design of choice from the outset. For intervention arm of trial, each anemic patient will receive DOHBIT (Directly Observed Home Based daily Iron Therapy) by local village volunteer for a total of 90 days whereas in the control arm of trial each patient will receive usual standard iron therapy without daily supervision for the same duration. Information, educational and counseling strategies will be similar for the two groups.

Primary outcome will be the anemia prevalence (difference of proportions) in intervention vs. control groups after trial intervention. Secondary outcomes in two groups include mean hemoglobin levels, compliance and side effects of iron therapy, body mass index and quality of life scores.

Sample size estimates, adjusted for cluster randomization (assuming Intracluster Correlation Coefficient of 0.05 and mean cluster size of 30 patients/village based on our pilot study), show that with 10 villages, each for intervention and control groups, an average 300 anemic patients per treatment arm would need to be treated to provide sufficient power to determine a 20% difference in anemia prevalence in two groups- a reduction deemed to a worthwhile impact of the intervention to be reliably detected at 80% power.

Then a statistically valid approach to the analysis of primary outcome variable will be to calculate a single outcome measure for each randomized unit and apply standard parametric method (chi-square) to the set of summary measures, keeping in mind that any conclusion will be strictly applicable only at the cluster level. Since, covariate adjustment will be required on an individual level for various secondary outcomes, thus a different approach based on the individual, as unit of analysis, adjusting for clustering will be more appropriate in analyzing various secondary outcome measures.

Overall, DOHBIT is one of the strategies to increase the capacity of individuals and communities to define, analyze and act to address their own health needs. Moreover, in the supply-demand continuum, DOHBIT by utilizing facilitators and motivators at the local level will optimize demand as well as supply of iron supplementation programme in the community.

Study Design

Allocation: Randomized, Control: Active Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Iron Deficiency Anemia (IDA)

Intervention

Directly observed home based daily iron therapy

Location

Build Healthy India Movement
Sirmaur
Himachal Pradesh
India

Status

Recruiting

Source

Build Healthy India Movement

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:13:27-0400

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Medical and Biotech [MESH] Definitions

Iron or iron compounds used in foods or as food. Dietary iron is important in oxygen transport and the synthesis of the iron-porphyrin proteins hemoglobin, myoglobin, cytochromes, and cytochrome oxidase. Insufficient amounts of dietary iron can lead to iron-deficiency anemia.

A multifunctional iron-sulfur protein that is both an iron regulatory protein and cytoplasmic form of aconitate hydratase. It binds to iron regulatory elements found on mRNAs involved in iron metabolism and regulates their translation. Its rate of degradation is increased in the presence of IRON.

A multifunctional iron-sulfur protein that is both an iron regulatory protein and cytoplasmic form of aconitate hydratase. It binds to iron regulatory elements found on mRNAs involved in iron metabolism and regulates their translation. Its RNA binding ability and its aconitate hydrolase activity are dependent upon availability of IRON.

Anemia characterized by decreased or absent iron stores, low serum iron concentration, low transferrin saturation, and low hemoglobin concentration or hematocrit value. The erythrocytes are hypochromic and microcytic and the iron binding capacity is increased.

An excessive accumulation of iron in the body due to a greater than normal absorption of iron from the gastrointestinal tract or from parenteral injection. This may arise from idiopathic hemochromatosis, excessive iron intake, chronic alcoholism, certain types of refractory anemia, or transfusional hemosiderosis. (From Churchill's Illustrated Medical Dictionary, 1989)

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