BRANMOOR
THURSDAY · 14 MAY 2026

Bortezomib

FDA Adverse Event Reporting System · 2025 window

Rank #247 by volume 3,241 reports in 2025

2025 report counts

Total adverse-event reports
3,241
Classified as serious
3,117
Reports with fatal outcome
474
Fatality share of serious reports
15.2%
Rank in window (by total report volume)
#247 of 500

Top reported reactions (serious-only)

The 10 most-reported reactions among serious-classified FAERS reports for this drug in 2025. MedDRA preferred terms.

Reaction (MedDRA PT)2025 reports
Plasma Cell Myeloma 412
Off Label Use 383
Drug Ineffective 298
Neuropathy Peripheral 193
Thrombocytopenia 183
Neutropenia 171
Pneumonia 147
Death 121
Anaemia 115
Fatigue 112

Important caveats

FAERS report counts are a reporting signal, not a clinical assertion of causation. Higher report volumes correlate with: larger treated populations, established manufacturer pharmacovigilance infrastructure, sicker patient populations (specialty biologics for serious disease will always attract more reports than common over-the-counter agents), and reporter familiarity with the reporting workflow.

The paid FAERS Signal Surveillance product adds the disproportionality analysis (Information Component, Empirical Bayes Geometric Mean, Proportional Reporting Ratio) that normalizes these confounders and surfaces emerging signal against the FAERS baseline. See the product page.

For the canonical FDA record, see the FAERS Public Dashboard.

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