Reaction

Hormone Receptor Positive Her2 Negative Breast Cancer reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 310 reports · 11 co-occurring drugs

As of the last recalculation, Hormone Receptor Positive Her2 Negative Breast Cancer appears in 310 FAERS reports alongside 11 co-occurring drug terms. The strongest observed disproportionality signal is RIBOCICLIB (PRR 1,147.9).

Important: FAERS is a spontaneous, voluntary, unverified reporting system. PRR and ROR identify reporting patterns for investigation; they are not incidence rates and do not establish causation.
DrugCo-reportsPRRROR
Ribociclib1971,147.91,155.2
Fulvestrant126430.8432.4
Letrozole Tablets134328.7329.6
Letrozole153328.4329.2
Alpelisib21173.4173.9
Goserelin1367.867.9
Abemaciclib1864.164.2
Zoledronic Acid3055.455.5
Exemestane1652.852.9
Everolimus Tablets1249.950.0
Palbociclib4234.034.1

Related reactions

Data source: openFDA FAERS. See the OpenPV methodology and limitations.