Daily versus alternate day oral iron therapy in iron deficiency anemia: a systematic review

Daily administration of oral iron is considered the current treatment standard for treating iron deficiency anemia due to availability and reduced cost compared to intravenous iron therapy. But adverse effects like epigastric pain, heartburn, and constipation reduce compliance to daily oral iron. There is scanty evidence regarding compliance and efficacy with alternate-day iron therapy. As per our knowledge, this is the first systematic review to compare daily with alternate-day oral iron therapy. Six electronic databases including PubMed and EMBASE were searched for randomized controlled trials, quasi-experimental studies published between January 2000 to March 2023 that compared daily with alternate day iron therapy in individuals diagnosed with iron deficiency anemia. The primary outcome analyzed was a change in hemoglobin. The other hematological parameters were assessed as secondary outcomes. Risk of bias was assessed regarding randomization process, deviation from intended intervention, missing outcome data, measurement of the outcome, and selection of the reported result. Out of the 9 full-text articles, 2 were not included as one was an ongoing trial and the second one had a different study design. The reviewed trials involved 594 participants, and the study participants ranged from 19 to 200. The mean age of the participants in the reported trials was 21 ± 2 to 49 ± 16 years. There is no significant increase in hemoglobin level and also the iron indices namely ferritin, hepcidin, total iron binding capacity, and reticulocyte count between daily and alternate-day dosing of iron. However, the frequency of adverse effects especially nausea, metallic taste, and altered bowel habits are reduced with alternate-day dosing. Oral iron given daily or on alternate days did not have a significant difference in the hemoglobin levels though iron absorption may be affected in the initial few days.Trial registration: The review protocol was registered with PROSPERO (Prospero2023CRD42023393095).

Cost-effectiveness analysis of parenteral iron therapy compared to oral iron supplements in managing iron deficiency anemia among pregnant women

OBJECTIVE

This study compared the clinical efficacy and cost-effectiveness of parenteral iron, using intravenous iron sucrose (IVIS) therapy against the standard regimen of oral iron (OI) therapy for managing iron-deficiency anemia (IDA) among pregnant women in a natural primary care setting in Gujarat.

DESIGN

A prospective cost-effectiveness study was conducted in natural programme setting wherein 188 pregnant women in their 14 to 18 weeks with moderate and severe anemia women enrolled from two districts of Gujarat, and 142 were followed up until the post-partum phase. The intervention group comprised of 82 participants who were administered IVIS, while the comparison group comprised of 106 participants who were put on OI therapy. Hemoglobin (Hb) levels were measured at periodic intervals, first during enrollment and then during each month of pregnancy period and finally on the 42nd day of the post-natal period.

OUTCOME MEASURES

Change in mean Hb level from baseline was the primary outcome, while the incidence of morbidity and mortality was a secondary outcome measure.

RESULTS

The intervention group showed a significant incremental mean change in Hb level from 8.2 g/dl to 11.45 g/dl at the fourth follow-up, while the control group's mean Hb level reduced from 9.99 g/dl to 9.55 g/dl. The discounted cost per beneficiary for IVIS was US$ 87, while that for OI was US$ 49. The incremental cost-effectiveness ratio (ICER) was US$ 9.84, which is 0.049% of India's per capita GDP.

CONCLUSION

IVIS therapy was more clinically effective and cost-effective than OI therapy among pregnant women for management of moderate and severe anemia.

Liposomal iron in moderate chronic kidney disease

INTRODUCTION AND OBJECTIVE

The optimal iron supplementation route of administration (intravenous vs oral) in patients with chronic kidney disease (CKD) not on dialysis is a hot topic of debate. An oral preparation (liposomal iron, FeSu) has recently been developed with high bioavailability and low incidence of side effects. The objective was to evaluate the efficacy of FeSu in patients with stage 3 CKD and gastrointestinal intolerance to conventional oral iron therapy.

MATERIAL AND METHODS

Prospective observational study of patients with stable stage 3 CKD and gastrointestinal intolerance to conventional oral iron therapy. An oral 30mg/day dose of FeSu was administered for 12 months. The primary outcome measure was haemoglobin increase at 6 and 12 months. Treatment adherence and adverse effects were also evaluated.

RESULTS

37 patients aged 72.6±14.7 years and with an estimated glomerular filtration rate (eGFR) of 42±10ml/min/1.73m² were included. 32 patients had received previous treatment with conventional oral formulations, 73% of which exhibited gastrointestinal intolerance with treatment adherence of 9.4%. After 6 months with FeSu, an increase in haemoglobin was observed versus baseline, which was sustained at 12 months (0.49±0.19 and 0.36±0.19g/dl, respectively, P<.05), despite a significant eGFR decrease of 3.16±1.16 and 4.20±1.28ml/min/1.73 m² at 6 and 12 months, respectively. None of the patients experienced adverse reactions that required the treatment to be suspended. Adherence was 100% at both 6 and 12 months.

CONCLUSIONS

FeSu is effective in a cohort of patients with stage 3 CKD with similar characteristics to the general population of moderate CKD patients, with a low rate of adverse reactions and excellent tolerability.

Treatment of iron deficiency anemia with liposomal iron in inflammatory bowel disease: efficacy and impact on quality of life

Background Anemia is a clinical condition frequently seen in patients with inflammatory bowel disease, which is responsible for a significant loss of quality of life. Objective To assess the efficacy and safety of using oral liposomal iron to treat iron deficiency anemia in inflammatory bowel disease patients, as well as assess the impact of this treatment on psychometric scores. Methods Patients with inactive/mildly active inflammatory bowel disease were screened for anemia in this interventional pilot study conducted from November 2016 to March 2018. Patients with mild anemia were treated with oral liposomal iron for 8 weeks. Main outcome measure The primary endpoint of the study was the response to liposomal oral iron therapy. Treatment response was defined as patients who achieved a hemoglobin increase of ≥ 1 g/dL and/or hemoglobin normalization by the 8th week of treatment. Results Out of 200 screened patients, 40 (20%) had anemia. Of the 21 patients who completed treatment, 13 (62%) responded to oral liposomal iron replacement therapy (mean increases of hemoglobin from 11.4 to 12.6 g/dL). The transferrin saturation index increased by an average of 10.2 (p = 0.006) and the quality of life by 26.3 (p < 0.0001). There was also a mean reduction of 9.2 in the perception of fatigue (p < 0.0001). Conclusion Treatment with oral liposomal iron is effective in improving mild iron deficiency anemia and quality of life, as well as in decreasing fatigue in patients with inactive or mildly active inflammatory bowel disease.

Diagnosis and management of iron deficiency in children with or without anemia: consensus recommendations of the SPOG Pediatric Hematology Working Group

Iron deficiency is the most prevalent nutritional deficiency affecting children and adolescents worldwide. A consistent body of epidemiological data demonstrates an increased incidence of iron deficiency at three timepoints: in the neonatal period, in preschool children, and in adolescents, where it particularly affects females.Conclusion: This narrative review focuses on the most suggestive symptoms of iron deficiency in childhood, describes the diagnostic procedures in situations with or without anemia, and provides Swiss expert-based management recommendations for the pediatric context.What is Known:• Iron deficiency (ID) is one of the most common challenges faced by pediatricians.• Significant progress in the diagnosis and therapy of ID has been made over the last decade.What is New:• Our expert panel provides ID management recommendations based on the best available evidence.• They include strategies for ID diagnosis and therapy, both oral and intravenous.

A comparative study to evaluate oral iron and intravenous iron sucrose for treatment of anemia in pregnancy in a poor socioeconomic region of Northeast India

Objective:

The prevalence of anemia during pregnancy is as high as 80% in some sections of the Indian population. Iron therapy in different forms has been found to alleviate anemia and yield good fetomaternal outcome. This study aims to evaluate the efficacy of intravenous iron sucrose (IVIS) versus oral iron in treating anemia among the antenatal mothers attending a tertiary care center of Northeast India.

Materials and Methods:

One hundred women between 18 and 28 weeks of gestation with diagnosed iron-deficiency anemia and hemoglobin (Hb) of 7–10.9 g/dL were enrolled to be administered either oral ferrous sulfate 200 mg twice daily or requisite dose of IVIS 100 mg in 100 ml normal saline on alternate days. Hb and hematocrit were measured at the time of enrollment, 4^th week, and 8^th week of therapy. Acceptability of both the drugs based on like and dislike after interviewing the study participants was recorded. Adverse drug reactions, gestational age at delivery, and neonatal birth weight were also noted in both the groups. The results were analyzed by Student's t-test and Chi-square test.

Results:

Hb and hematocrit values were found to be increased in both the groups at 4^th and 8^th weeks. When both the groups were compared, the rise in the values was higher in the iron sucrose group (at 4^th week P = 0.01 and at 8^th week P = 0.00). The number of participants who reached target Hb levels at 4 weeks was 41 (82%) with oral iron and 48 (96%) with iron sucrose. In the iron sucrose group, no adverse effects were observed, suggesting its safety, and the acceptability and newborn birth weight were noted to be higher.

Conclusion:

IVIS was found to be more effective than oral iron therapy in treating antenatal anemia with no serious adverse drug reactions.

Medication adherence to oral iron therapy in patients with iron deficiency anemia

Objective:

This study aimed at investigating the factors affecting medication adherence in patients who use oral iron therapy due to iron deficiency anemia.

Methods:

A total of 96 female patients in fertile age with mean age of 30±10.1 years (range 18-53) who were admitted to Family Medicine Clinic between 01 January and 31 March 2015 and who had received iron therapy within the recent three years were enrolled in the study. Data were collected through a questionnaire form.

Results:

Of the patients, 39 (40,6%) were detected not to use the medication regularly or during the recommended period. A statistically significant relationship was found between non-adherence to therapy and gastrointestinal side effects and weight gain (p<0.05).

Conclusion:

Medication adherence is deficient in patients with iron deficiency anemia. The most important reason for this seems gastrointestinal side effects, in addition to weight gain under treatment.

Intravenous iron sucrose and oral iron for the treatment of iron deficiency anaemia in pregnancy

PURPOSE

The aim of this study was to compare the efficacy and safety of intravenous iron sucrose and oral iron administration for the treatment of iron deficiency anaemia in pregnancy.

MATERIALS AND METHODS

Hundred women with gestational age between 30 and 34 weeks with established iron deficiency anaemia with Haemoglobin-6-8g/dL were randomised to receive either oral ferrous sulphate 200 mg thrice daily or required dose of intravenous iron sucrose 200 mg in 200 ml NS on alternate days. Haemoglobin, haematocrit, mean corpuscular volume, reticulocyte count were measured at recruitment and on 2(nd) week, 4(th) week and at 37 weeks. Adverse drug reactions were also noted in both the groups. RESULTS were analyzed by student's t-test and Chi-square test.

RESULTS

Haemoglobin values varied significantly with time between the two groups at second week, 4(th) week and at term (p<0.005). The mean difference in mean corpuscular volume from the recruitment value was not significant at 2(nd) week. When compared to iron sucrose group, oral iron group had significant gastro-intestinal adverse effects.

CONCLUSION

Intravenous iron sucrose treated iron deficiency anaemia of pregnancy faster, and more effectively than oral iron therapy, with no serious adverse drug reactions.