JAKAFI
According to the FDA label: JAKAFI/JAKAFI XR is a kinase inhibitor indicated for treatment of: intermediate or high-risk myelofibrosis, including primary myelofibrosis, post-polycythemia vera myelofibrosis, and post-essential thrombocythemia myelofibrosis in adults. ( 1.1 ) polycythemia vera in adults who have had an inadequate response to or are intolerant of hydroxyurea. ( 1.2 ) steroid-refractory acute graft-versus-host disease in adult and pediatric patients 12 years and older.
65,338 adverse event reports submitted to the FDA (2012–2026)
Top Reported Adverse Events
The most frequently reported events in association with JAKAFI in the FAERS database. These are events reported by patients taking this medication — not necessarily caused by it. A single report may include multiple events.
Who Is Reporting
Demographics of patients in FAERS reports that included this information. Not all reports include patient demographics.
By Sex
By Age Group
Reported Outcomes
Outcomes recorded in FAERS reports that included JAKAFI. A single report may involve multiple reactions, each with a different outcome. These categories are defined by FDA reporting guidelines, not by PillSignal.
Report Volume Over Time
Number of FAERS reports received per quarter for JAKAFI. Changes in volume may reflect shifts in prescribing rates, media attention, or reporting behavior — not changes in the medication's safety profile.
Related Drugs
Other medications with similar adverse event profiles in FDA FAERS reports.
Data Source
This data is sourced from the FDA Adverse Event Reporting System (FAERS) via the OpenFDA API. PillSignal is not affiliated with the FDA.
View this data on the FDA website →