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Daily Versus Alternate Day Iron Supplementation for the Treatment of Iron Deficiency Anemia in Pregnancy

A Randomized Trial of Intermittent Oral Iron Supplementation vs. Daily Oral Iron Supplementation for the Treatment of Anemia in Pregnancy

Status
Terminated
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04594070
Enrollment
14
Registered
2020-10-20
Start date
2020-10-27
Completion date
2024-01-12
Last updated
2024-06-24

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

Conditions

Iron Deficiency Anemia of Pregnancy, Pregnancy Related

Keywords

Pregnancy, Iron deficiency, Anemia, Iron supplementation

Brief summary

The target population for our study is pregnant women in the first or second trimester with a diagnosis of iron deficiency anemia. If a subject is eligible, written consent will be obtained by person to person contact. Eligible participants will be randomized to receive either daily oral iron supplementation or every other day oral iron supplementation.

Detailed description

Eligible pregnant women in the first or second trimester who carry a diagnosis of iron deficiency anemia as defined by the American College of Obstetrics and Gynecology will be approached, consented, and randomized to receive either daily oral ferrous sulfate (325mg) supplementation or every other day oral ferrous sulfate (650mg). Participants will undergo a phone survey 2-4 weeks after starting the study to assess for side effects. Participants will continue routine care and surveillance of iron deficiency in pregnancy until the end of pregnancy.

Interventions

DRUGFerrous sulfate

Iron supplementation

Sponsors

The University of Texas Medical Branch, Galveston
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 50 Years
Healthy volunteers
No

Inclusion criteria

* Hemoglobin less than 11 g/dl in the first trimester or less than 10.5 g/dl in the second trimester * Microcytic anemia * Singleton gestation in the first or second trimester

Exclusion criteria

* Malabsorptive disorder or history of restrictive or malabsorptive gastric surgery * Known diagnosis of anemia other than iron deficiency (thalassemia, macrocytic, sickle cell, etc.) * History of cardiopulmonary disease * Severe anemia requiring parental infusion or transfusion of blood products

Design outcomes

Primary

MeasureTime frameDescription
Difference in Hemoglobin Levels From Enrollment to End of StudyBaseline and again 8-9 months later (third trimester of pregnancy)Hemoglobin levels will be assessed by blood draw upon enrollment and again in the third trimester of pregnancy
Change in Hematocrit in the Third Trimester After TreatmentBaseline and again 8-9 months later (third trimester of pregnancy)Hematocrit levels will be assessed by blood draw upon enrollment and again in the third trimester of pregnancy

Secondary

MeasureTime frameDescription
Serum Ferritin at Time of EnrollmentBaseline only at time of enrollmentSerum ferritin will assessed by blood draw at time of enrollment.
Total Iron Binding Capacity at Time of EnrollmentBaseline only at time of enrollmentTotal iron binding capacity will assessed by blood draw at time of enrollment.
Transferrin at Time of EnrollmentBaseline only at time of enrollmentTransferrin levels will assessed by blood draw at time of enrollment.
Number of Participants Who Receive Intravenous (IV) Iron SupplementationAt completion of study, on average after 9 monthsBy chart review, we will determine if the subject received parental (IV) iron supplementation as part of the treatment for iron deficiency anemia
Number of Participants Who Receive a Blood TransfusionAt completion of study, on average after 9 monthsBy chart review, we will determine if the subject received a blood transfusion as part of the treatment for iron deficiency anemia
Postpartum HemoglobinAt completion of study, on average after 9 monthsHemoglobin levels after delivery will be recorded (if obtained as part of regular postpartum care)
Gastrointestinal Side Effects After 2-4 Weeks of Treatment2-4 weeks after enrollmentGastrointestinal side effects with treatment will be assessed by telephone survey using a validated questionnaire.
Neonatal Weight at DeliveryAt completion of study, on average after 9 monthsThe weight of the baby (in grams) will be determined by chart review at the end of enrollment
Level of Neonatal Bilirubin at BirthAt completion of study, on average after 9 monthsNeonatal hyperbilirubinemia will be reviewed and recorded by chart review
Neonatal Apgar ScoresAt completion of study, on average after 9 monthsNeonatal Apgar scores will be reviewed and recorded by chart review. The Apgar score is a method used to describe a newborn's status at birth and response to resuscitation. The Apgar score comprises five components: 1) color, 2) heart rate, 3) reflexes, 4) muscle tone, and 5) respiration, each of which is given a score of 0, 1, or 2. The range of scores is 0 to 10. Higher scores indicate reassuring newborn status.
Number of Newborns Who Are Admitted to the Neonatal Intensive Care Unit (NICU).At completion of study, on average after 9 monthsThe need for Neonatal Intensive Care Unit (NICU) Admission, will be assessed
Weight Class at Time of EnrollmentBaseline only at time of enrollmentAt time of enrollment the weight of the subject will be assessed and assigned a weight class using the World Health Organization weight classification
Postpartum HematocritAt completion of study, on average after 9 monthsHematocrit levels after delivery will be recorded (if obtained as part of regular postpartum care)
Complete Blood Count in the Third Trimester8-9 months after enrollment (third trimester of pregnancy)Complete blood count indices will be assessed by blood draw upon enrollment and approximately monthly until delivery

Countries

United States

Participant flow

Pre-assignment details

The protocol was terminated early due to low accrual.

Participants by arm

ArmCount
Daily Iron Supplementation
Oral ferrous sulfate, 325 mg, take once daily Ferrous sulfate: Iron supplementation
8
Alternate Day Iron Supplementation
Oral ferrous sulfated, 650mg, taken once daily every other day Ferrous sulfate: Iron supplementation
6
Total14

Baseline characteristics

CharacteristicDaily Iron SupplementationAlternate Day Iron SupplementationTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
8 Participants6 Participants14 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
5 Participants4 Participants9 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
3 Participants2 Participants5 Participants
Region of Enrollment
United States
8 Participants6 Participants14 Participants
Sex: Female, Male
Female
8 Participants6 Participants14 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 00 / 0
other
Total, other adverse events
0 / 00 / 0
serious
Total, serious adverse events
0 / 00 / 0

Outcome results

Primary

Change in Hematocrit in the Third Trimester After Treatment

Hematocrit levels will be assessed by blood draw upon enrollment and again in the third trimester of pregnancy

Time frame: Baseline and again 8-9 months later (third trimester of pregnancy)

Population: No data collected due to early termination.

Primary

Difference in Hemoglobin Levels From Enrollment to End of Study

Hemoglobin levels will be assessed by blood draw upon enrollment and again in the third trimester of pregnancy

Time frame: Baseline and again 8-9 months later (third trimester of pregnancy)

Population: No data collected due to early termination.

Secondary

Complete Blood Count in the Third Trimester

Complete blood count indices will be assessed by blood draw upon enrollment and approximately monthly until delivery

Time frame: 8-9 months after enrollment (third trimester of pregnancy)

Population: No data collected due to early termination.

Secondary

Gastrointestinal Side Effects After 2-4 Weeks of Treatment

Gastrointestinal side effects with treatment will be assessed by telephone survey using a validated questionnaire.

Time frame: 2-4 weeks after enrollment

Population: No data collected due to early termination.

Secondary

Level of Neonatal Bilirubin at Birth

Neonatal hyperbilirubinemia will be reviewed and recorded by chart review

Time frame: At completion of study, on average after 9 months

Population: No data collected due to early termination.

Secondary

Neonatal Apgar Scores

Neonatal Apgar scores will be reviewed and recorded by chart review. The Apgar score is a method used to describe a newborn's status at birth and response to resuscitation. The Apgar score comprises five components: 1) color, 2) heart rate, 3) reflexes, 4) muscle tone, and 5) respiration, each of which is given a score of 0, 1, or 2. The range of scores is 0 to 10. Higher scores indicate reassuring newborn status.

Time frame: At completion of study, on average after 9 months

Population: No data collected due to early termination.

Secondary

Neonatal Weight at Delivery

The weight of the baby (in grams) will be determined by chart review at the end of enrollment

Time frame: At completion of study, on average after 9 months

Population: No data collected due to early termination.

Secondary

Number of Newborns Who Are Admitted to the Neonatal Intensive Care Unit (NICU).

The need for Neonatal Intensive Care Unit (NICU) Admission, will be assessed

Time frame: At completion of study, on average after 9 months

Population: No data collected due to early termination.

Secondary

Number of Participants Who Receive a Blood Transfusion

By chart review, we will determine if the subject received a blood transfusion as part of the treatment for iron deficiency anemia

Time frame: At completion of study, on average after 9 months

Population: No data collected due to early termination.

Secondary

Number of Participants Who Receive Intravenous (IV) Iron Supplementation

By chart review, we will determine if the subject received parental (IV) iron supplementation as part of the treatment for iron deficiency anemia

Time frame: At completion of study, on average after 9 months

Population: No data collected due to early termination.

Secondary

Postpartum Hematocrit

Hematocrit levels after delivery will be recorded (if obtained as part of regular postpartum care)

Time frame: At completion of study, on average after 9 months

Population: No data collected due to early termination.

Secondary

Postpartum Hemoglobin

Hemoglobin levels after delivery will be recorded (if obtained as part of regular postpartum care)

Time frame: At completion of study, on average after 9 months

Population: No data collected due to early termination.

Secondary

Serum Ferritin at Time of Enrollment

Serum ferritin will assessed by blood draw at time of enrollment.

Time frame: Baseline only at time of enrollment

Population: No data collected due to early termination.

Secondary

Total Iron Binding Capacity at Time of Enrollment

Total iron binding capacity will assessed by blood draw at time of enrollment.

Time frame: Baseline only at time of enrollment

Population: No data collected due to early termination.

Secondary

Transferrin at Time of Enrollment

Transferrin levels will assessed by blood draw at time of enrollment.

Time frame: Baseline only at time of enrollment

Population: No data collected due to early termination.

Secondary

Weight Class at Time of Enrollment

At time of enrollment the weight of the subject will be assessed and assigned a weight class using the World Health Organization weight classification

Time frame: Baseline only at time of enrollment

Population: No data collected due to early termination.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026