Evidence map›Paper›PMID 18298856›Full record

Trial reportJournal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance2008

Combined chelation therapy in thalassemia major for the treatment of severe myocardial siderosis with left ventricular dysfunction.

Mark A Tanner, Renzo Galanello, Carlo Dessi, Gillian C Smith, Mark A Westwood, Annalisa Agus, Martina Pibiri, Sunil V Nair, J Malcolm Walker, Dudley J Pennell

Registry-linked trialOpen access · goldAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00103753 (A Randomized, Placebo Controlled, Double Blind Trial of the Effect of Combined Therapy With Deferoxamine and Deferiprone on Myocardial Iron in Thalassemia Major Using Cardiovascular Magnetic Resonance), which is not on this map. Cited by 85 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed, 2 pooled it
11.0field-weighted citation impact, top 1% of its field
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.

NCT00103753 phase4unknown statusnot on this map

A Randomized, Placebo Controlled, Double Blind Trial of the Effect of Combined Therapy With Deferoxamine and Deferiprone on Myocardial Iron in Thalassemia Major Using Cardiovascular Magnetic Resonance

TypeinterventionalSponsorRoyal Brompton & Harefield NHS Foundation TrustRan2004 to 2005Enrolled65ConditionsBeta-ThalassemiaArmsdeferiprone
3 · Its place in the literature

Who cites it

85 citing papers in PubMed, 2 syntheses or guidelines pooled it, 234 citations in OpenAlex.

  1. Pooled it
  2. Oral deferiprone for iron chelation in people with thalassaemia.The Cochrane database of systematic reviews · 2013
    Pooled it
  3. Trial
  4. Trial
  5. Treatment of heart failure in adults with thalassemia major: response in patients randomised to deferoxamine with or without deferiprone.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2013
    Trial
  6. Trial
  7. Trial
  8. Trial
  9. Iron overload cardiomyopathy.Heart failure reviews · 2026
    Review
  10. Article
  11. Article
  12. Review
  13. Iron chelators: as therapeutic agents in diseases.Annals of medicine and surgery (2012) · 2024
    Review
  14. Article
  15. Review
  16. Review
  17. Article
  18. Review
  19. Review
  20. Article

25 more citing papers are in PubMed but not listed here.

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

10 authors at 4 institutions in 2 countries.

Mark A TannerCardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, London, UK. mark.tanner@imperial.nhs.uk
Renzo Galanello
Carlo Dessi
Gillian C Smith
Mark A Westwood
Annalisa Agus
Martina Pibiri
Sunil V Nair
J Malcolm Walker
Dudley J Pennell
Ospedale Microcitemico · ITRoyal Brompton Hospital · GBUniversity College Hospital · GBUniversity College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn thalassemia major (TM), severe cardiac siderosis can be treated by continuous parenteral deferoxamine, but poor compliance, complications and deaths occur. Combined chelation therapy with deferiprone and deferoxamine is effective for moderate myocardial siderosis, but has not been prospectively examined in severe myocardial siderosis.

methodsT2* cardiovascular magnetic resonance (CMR) was performed in 167 TM patients receiving standard subcutaneous deferoxamine monotherapy, and 22 had severe myocardial siderosis (T2* < 8 ms) with impaired left ventricular (LV) function. Fifteen of these patients received combination therapy with subcutaneous deferoxamine and oral deferiprone with CMR follow-up.

resultsAt baseline, deferoxamine was prescribed at 38 +/- 10.2 mg/kg for 5.3 days/week, and deferiprone at 73.9 +/- 4.0 mg/kg/day. All patients continued both deferiprone and deferoxamine for 12 months. There were no deaths or new cardiovascular complications. The myocardial T2* improved (5.7 +/- 0.98 ms to 7.9 +/- 2.47 ms; p = 0.010), with concomitant improvement in LV ejection fraction (51.2 +/- 10.9% to 65.6 +/- 6.7%; p < 0.001). Serum ferritin improved from 2057 (CV 7.6%) to 666 (CV 13.2%) microg/L (p < 0.001), and liver iron improved (liver T2*: 3.7 +/- 2.9 ms to 10.8 +/- 7.3 ms; p = 0.006).

conclusionIn patients with severe myocardial siderosis and impaired LV function, combined chelation therapy with subcutaneous deferoxamine and oral deferiprone reduces myocardial iron and improves cardiac function. This treatment is considerably less onerous for the patient than conventional high dose continuous subcutaneous or intravenous deferoxamine monotherapy, and may be considered as an alternative. Very prolonged tailored treatment with iron chelation is necessary to clear myocardial iron, and alterations in chelation must be guided by repeated myocardial T2* scans.

trial registrationThis trial is registered as NCT00103753.

Indexed as

Administration, OralAdultbeta-ThalassemiaCardiomyopathiesDeferiproneDeferoxamineDrug Therapy, CombinationFemaleFerritinsHumansInjections, SubcutaneousIronIron Chelating AgentsItalyLiverMagnetic Resonance ImagingDeferiproneDeferoxamineFerritinsIronIron Chelating AgentsNatriuretic Peptide, BrainPyridones

Identifiers

PMID18298856
PMCPMC2289829
OpenAlexW2020966580

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.