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Causality assessment · Causality: well established

Tebentafusp and Cytokine Release Syndrome: is the FAERS signal real?

n=115 co-reports · PRR 219.1 · ROR 273.0
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

Tebentafusp ↔ Cytokine Release Syndrome

n=115 co-reports · PRR 219.1 · ROR 273.0

Tebentafusp is a CD3-bispecific molecule for melanoma. CRS is the expected on-target effect of T-cell engagement; the label carries a boxed warning. 191 co-reports (PRR 489.9) reflect near-universal occurrence.

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

Bradford Hill viewpointStatusNote
Temporality (necessary)metDocumented in label
StrengthmetPRR 489.9 with 191 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 Tebentafusp captured cytokine release syndrome as a tracked adverse event in a usable structure. CRS is tracked as primary AE in BiTE registration trials.