Evidence map›Paper›PMID 40544472›Full record

SynthesisAnnals of medicine2025

Risk of cancer in patients with thalassemia and sickle cell disease: a systematic review.

Lucia Merolle, Luca Ghirotto, Davide Schiroli, Giulietta Luul Balestra, Francesco Venturelli, Maria Chiara Bassi, Erminia Di Bartolomeo, Roberto Baricchi, Chiara Marraccini

Abstract readSystematic Review
In one paragraph

Synthesis in Annals of medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
–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 synthesis or guideline pooled it.

  1. Guideline
  2. Review
  3. Review
  4. Review
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

9 authors.

Lucia MerolleTransfusion Medicine Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.ORCID 0000-0001-5712-4272
Luca GhirottoQualitative Research Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.ORCID 0000-0001-7632-1271
Davide SchiroliTransfusion Medicine Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.ORCID 0000-0001-7639-0015
Giulietta Luul BalestraQualitative Research Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.ORCID 0000-0001-5565-195X
Francesco VenturelliEpidemiology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.ORCID 0000-0002-9190-8668
Maria Chiara BassiBiomedical Library, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.ORCID 0000-0002-5418-2837
Erminia Di BartolomeoTransfusion Medicine Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.ORCID 0000-0001-6001-5843
Roberto BaricchiTransfusion Medicine Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.ORCID 0000-0002-1658-0666
Chiara MarracciniTransfusion Medicine Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.ORCID 0000-0002-8053-498X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIndividuals with thalassemia or sickle cell disease (SCD) are at an elevated risk of developing cancer, yet the full extent of this risk remains inadequately characterised.

methodsWe conducted a systematic review using three databases (MEDLINE, EMBASE and Scopus) to compare the cancer risk in patients with thalassemia and SCD with that of the general population. Secondly, we assessed the impact of other putative risk factors in patients with thalassemia and SCD on cancer risk.

resultsFive studies from four countries were included, encompassing a total of 24,439 individuals overall. The risk estimates of developing cancer were highly variable, being affected by study design, population and comparators recruited, and type of cancer. The results showed an elevated cancer risk in SCD and thalassemia patient groups, with the highest incidence observed for hematologic malignancies (especially myeloid leukaemia in SCD patients). Patients with transfusion-dependent thalassemia had a significantly higher overall cancer risk, particularly hepatocellular carcinoma, compared to both non-transfusion-dependent patients and the general population. Other key factors seem to contribute to the increased cancer risk besides transfusion dependency, viral infections, and use of iron chelators. However, people with hemoglobinopathies appeared to be at lower risk of breast and prostate cancer compared to the general population. DISCUSSION: The findings are limited by variability among studies, including differences in control groups, inconsistent reporting of outcomes, and missing assessments of confounding factors. Therefore, future research with robust methods is essential to improve cancer surveillance and develop targeted prevention strategies for high-risk populations.

Indexed as

Anemia, Sickle CellNeoplasmsThalassemiaBlood TransfusionFemaleHumansIncidenceMaleRisk Factorscancer incidencesickle cell diseasesystematic reviewThalassemia

Identifiers

PMID40544472
PMCPMC12931313

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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.