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‹ Sat · 22 Aug 2026
Promising but preliminary

Use of selective serotonin reuptake inhibitors and risk of myeloid malignancy: A nationwide Danish case-control study.

Long-term Danish health records show no clear link between common antidepressants and blood cancer risk despite earlier laboratory concerns.

This large population-based Danish registry study examined whether selective serotonin reuptake inhibitor (SSRI) use influences myeloid malignancy risk across 22 years of follow-up. The scale and registry-linkage design provide high-quality pharmacoepidemiological evidence addressing preclinical signals that SSRIs may affect hematopoietic stem cell proliferation.

What the study was

Study design
Nationwide case-control study (Danish registry)
Population
22,293 myeloid malignancy cases + 445,860 controls, Denmark
Sample size
468153
Category
Diagnostics
Maturity
Validated
Journal
British journal of haematology

Why it surfaced

Large nationwide pharmacoepidemiological study (n>468K) addressing SSRI-myeloid malignancy risk; robust design with national registry data spanning 21 years.

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