Intravenous iron to help people regain mobility after hip fracture surgery

The Effects of Intravenous Iron on Mobility in Elderly Patients Following Hip Fracture Surgery: a Multicentre, Parallel Group, Randomised Controlled Trial

Phase 4 Interventional University Hospital Bispebjerg and Frederiksberg · NCT06898814

This trial will test whether a single infusion of intravenous iron given soon after hip fracture surgery helps people aged 65 and older regain their walking ability.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment210 (estimated)
Ages65 Years and up
SexAll
SponsorUniversity Hospital Bispebjerg and Frederiksberg Academic / other
Locations3 sites (Copenhagen NV and 2 other locations)
Trial IDNCT06898814 on ClinicalTrials.gov

What this trial studies

This randomized, placebo-controlled Phase 4 trial gives a single dose of ferric derisomaltose (20 mg/kg) or saline 1–5 days after hip fracture surgery to about 210 patients across three Danish hospitals. The primary outcome is change in the New Mobility Score from pre-fracture baseline, with secondary measures including hemoglobin, fatigue, and markers of skeletal muscle recovery over weeks to months. Eligible participants are aged 65 or older, had acute proximal femur fracture surgery, have postoperative hemoglobin ≤10.5 g/dL, and were independently walking indoors before the fracture. The trial tests whether early correction of iron deficiency improves functional recovery after hip fracture.

Who should consider this trial

Good fit: Ideal candidates are people 65 or older who had hip fracture surgery, have postoperative hemoglobin ≤10.5 g/dL within 1–5 days, were independently walking indoors before the fracture, speak Danish, and can give consent.

Not a fit: Patients without postoperative anemia or with contraindications to IV iron (such as iron-overload disorders, severe liver disease, recent IV iron, permanent nursing-home residency, or severe dementia) are unlikely to benefit.

Why it matters

Potential benefit: If successful, the treatment could speed recovery of walking ability, raise hemoglobin, and reduce fatigue after hip fracture surgery.

How similar studies have performed: Previous surgical and orthopedic trials have shown perioperative IV iron reliably increases hemoglobin but have produced mixed results on improving functional recovery and mobility.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. 65 years of age or older
2. Acute proximal femur fracture surgery
3. A hemoglobin measurement ≤6.5 mmol/L (10.5 g/dL) on day 1 to 5 postoperatively
4. Independent prefracture indoor walking ability, indoor NMS ≥ 2
5. Ability to speak and understand Danish
6. Able to provide informed consent on the participants own behalf

Exclusion Criteria:

1. Known allergy to intravenous iron
2. Residing permanently at a nursing home
3. Hematological conditions with a risk of iron overload e.g. haemochromatosis, hemosiderosis, or where alternative treatments are necessary e.g. haematological malignancies
4. Other contraindication to iron treatment, e.g. severe liver cirrhosis and hepatitis
5. Severe uncontrolled infection as assessed by the responsible clinician (e.g. bacteraemia or sepsis)
6. Plasma sodium levels below 125 or above 150 mmol/L on the day of inclusion
7. Renal replacement therapy
8. Severe dementia assessed by physician
9. Recent intravenous iron injection, 4 weeks prior to surgery
10. Patient declared terminally ill
11. Pathologic Fracture

Where this trial is running

Copenhagen NV and 2 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Hip FractureAnemiaHip fractureIV IronMobilityPerioperative optimisationRandomized Controlled Trial
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.