Evidence map›Paper›PMID 39839869›Full record

SynthesisFrontiers in neurology2024

Efficacy and safety of intravenous ferric carboxymaltose in the treatment of Restless Legs Syndrome: a systematic review and meta-analysis.

Ayesha Khan, Harsh Kumar, Kuldeep Dalpat Rai, Anzel Saeed, Jawad Ishtiaq, Muhammad Tanveer Alam, Sakshi Chawla, Md Ariful Haque

Abstract readSystematic Review
In one paragraph

Synthesis in Frontiers in neurology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. KDIGO 2026 Clinical Practice Guideline for Anemia in Chronic Kidney Disease (CKD): a commentary from the European Renal Best Practice (ERBP).Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2026
    Article
  2. Iron therapy & restless legs syndrome: a narrative review.Sleep & breathing = Schlaf & Atmung · 2026
    Review
  3. Review
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Ayesha KhanDepartment of Medicine, Dow University of Health Sciences, Karachi, Pakistan.
Harsh KumarDepartment of Medicine, Dow University of Health Sciences, Karachi, Pakistan.
Kuldeep Dalpat RaiDepartment of Medicine, Dow University of Health Sciences, Karachi, Pakistan.
Anzel SaeedDepartment of Medicine, Dow University of Health Sciences, Karachi, Pakistan.
Jawad IshtiaqDepartment of Medicine, Dow University of Health Sciences, Karachi, Pakistan.
Muhammad Tanveer AlamDepartment of Medicine, Dow University of Health Sciences, Karachi, Pakistan.
Sakshi ChawlaDepartment of Medicine, Dow University of Health Sciences, Karachi, Pakistan.
Md Ariful HaqueDepartment of Public Health, Atish Dipankar University of Science and Technology, Dhaka, Bangladesh.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Restless Legs Syndrome (RLS), also known as Willis-Ekbom Disease (WED), is a sensorimotor disorder characterized by an uncontrollable urge to move the legs, typically accompanied by discomfort. Low iron levels, pregnancy, and age are some identified risk factors. RLS is treated using various pharmacological options, including dopamine agonists, benzodiazepines, anticonvulsants, opioids, and bupropion. Iron supplementation, particularly with intravenous Ferric carboxymaltose (FCM), has gained attention due to the role of iron deficiency in RLS pathophysiology. This meta-analysis evaluates the efficacy and safety of FCM in treating RLS symptoms. Materials and methods: A systematic review and meta-analysis were conducted following the PRISMA guidelines, using databases such as PubMed, Google Scholar, and Cochrane. Studies involving intravenous FCM in patients diagnosed with RLS were included. Statistical analysis was performed using Review Manager 5.4. Results: Seven studies involving 539 participants were analyzed. FCM significantly reduced IRLS scores (WMD = -5.77; 95% CI = [-8.85, -2.70]; Conclusion: In conclusion, intravenous ferric carboxymaltose significantly reduces Restless Legs Syndrome symptoms, especially in patients with confirmed iron deficiency. The treatment appears generally well-tolerated, with adverse effects being manageable. However, further long-term studies are needed to fully assess the safety profile and confirm sustained symptom improvement in a broader population. Systematic review registration: https://www.crd.york.ac.uk/prospero/, identifier: CRD42024585233.

Indexed as

ferric carboxymaltoseiron therapyneuromuscular disorderRestless Legs SyndromeWillis-Ekbom Disease

Identifiers

PMID39839869
PMCPMC11746117

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.