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Causality assessment · Causality: well established

Elranatamab-Bcmm and Cytokine Release Syndrome: is the FAERS signal real?

n=184 co-reports · PRR 197.2 · ROR 239.5
A written Bradford Hill assessment of one drug–event pair. The grade is a judgement about the signal, not a statement that this drug causes this event in any one person; FAERS counts are reports, not rates.
Causality: well established

Elranatamab-Bcmm ↔ Cytokine Release Syndrome

n=184 co-reports · PRR 197.2 · ROR 239.5

Elranatamab-bcmm is a BCMA-directed bispecific antibody for multiple myeloma. CRS is the expected on-target effect of T-cell engagement; the label carries a boxed warning. 333 co-reports (PRR 423.3) reflect near-universal occurrence.

Boxed warning: elranatamab label (CRS). Registration trial.

Bradford Hill viewpointStatusNote
Temporality (necessary)metDocumented in label
StrengthmetPRR 423.3 with 333 co-reports
ConsistencymetReproduced across T-cell engagers
SpecificitypartialSpecific to T-cell-engaging therapies
Biological gradientmetCorrelates with tumour burden
PlausibilitymetKnown T-cell activation mechanism
CoherencemetCoherent with immunology
ExperimentmetTrials confirm
AnalogymetClass-wide pattern

This table is this page's own qualitative read of the literature cited above, not an automated or citation-gated assessment — see the note at the bottom of this page.

✗ No ClinicalTrials.gov results-posting trial in the top search hits for Elranatamab-Bcmm captured cytokine release syndrome as a tracked adverse event in a usable structure. CRS is tracked as primary AE in BiTE registration trials.