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Can a simple iron pill fix low hemoglobin in blood donors?

NCT ID NCT04250298

Disease control Sponsor: Medical University of Graz Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This pilot study looked at whether taking an iron supplement called sucrosomial iron for three months can raise hemoglobin levels in blood donors who have iron deficiency. Fifty donors with low iron took the supplement daily. Researchers measured changes in hemoglobin, ferritin, fatigue, sleep, and quality of life. The goal was to see if this supplement could help donors recover their iron stores and feel better.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
sucrosomial iron (a dietary supplement)
What this could lead to
If it works, this could help blood donors with low iron quickly restore healthy hemoglobin levels and feel better.
What could go wrong
This is a small pilot study with only 50 people, so results may not apply to everyone. The supplement might cause side effects like diarrhea.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

50 people

The number who actually took part.

Started

Nov 2019

Finished

Dec 2020

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 70 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Deferral from donation because of low capillary hemoglobin (Hb) \<12.5 g/dl (women) and Hb \<13 g/dl; * Otherwise eligibility for donation according to medical history; * Ferritin at the time of deferral \<30 ng/ml; * Last whole blood donation \>2 months prior to current hemoglobin level; * Written informed consent; * Venous Hb \<12.5 g/dl (females) and \<13.5 g/dl (men); Exclusion Criteria: * Lack of legal capacity or court-appointed representation; * Known pregnancy; * Lactation period; * Chronic diarrhea or known inclination for diarrhea; * Known or suspected fructose intolerance; * iron supplementation during the last three months; * continuous or expected blood loss (capillary oozing); * hypermenorrhea; * planned surgical intervention with relevant blood loss within the next 3-4 months (duration of study); * application of another iron supplementation during the next 3-4 months; * intended application of preparations for a systematic increase of red blood cell and hemoglobin concentration or production (e.g. erythropoietin preparations, packed red blood cells) for the duration of the study; * parallel participation in another clinical trial with insurance coverage; * foreseeable compliance issues; * foreseeable unavailability for the time of the final examination; * Incompatibility with any of the ingredients of the product; * Anemia requiring acute therapy: Hb \<8g/dl (as indication of an obligatory correction of the hemoglobin level to a clinically irrelevant or non-therapeutic value);

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Conditions

The condition(s) this trial relates to.

iron deficiency anemia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Iron-deficiency

Contacts and locations

Locations

  • Medical University of Graz

    Graz, Styria, 8036, Austria

More trials for these conditions

Other studies related to the condition(s) this trial covers.