Reported Reactions

Drugs › Kinase inhibitor

Brand name · Brigatinib

Alunbrig: adverse event reports filed with FDA

1,281 reports list it as a suspect or interacting product, 2017–2026. Class: Kinase inhibitor.

1,281
reports as suspect product
0% of all reports · about 141 a year
96
reports, 12 months to June 2026
173 in the 12 months before
81.6%
marked serious by the reporter
70.8% across the class
13.7%
record death among outcomes, as reported
176 reports · not verified by FDA

Between June 2017 and June 2026, 1,281 adverse event reports received by FDA list the brand name Alunbrig (brigatinib) as a suspect or interacting product. Reports that mention it only as a concomitant medication (45) are left out of every figure here.

In the 12 months to June 2026, 96 reports listed it, down 45% from 173 in the 12 months before. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases. Over its reporting history that is about 141 reports a year and 0% of the 20,646,523 reports in the database, and 0.2% of the reports for the kinase inhibitor class. How many people take it is not in the data, so a count is not a rate of occurrence.

Reporters most often recorded non-small cell lung cancer (10.9%), blood creatine phosphokinase increased (9.8%) and lung neoplasm malignant (9%). A report can list several reactions, so shares add to more than 100%; 214 different terms appear across these reports. Non-small cell lung cancer is recorded in 10.9% of these reports, with no counterpart in the median kinase inhibitor drug (0%).

81.6% of the reports are marked serious by the reporter (70.8% across the class); 13.7% record death among the outcomes and 22.5% record hospitalisation, as reported. 49.8% of the reports came from physicians, and the largest patient age group is 45 to 64 (27.2%). FDA states that "a causal relationship cannot be established between product and reactions listed in a report" and that for any given report "there is no certainty that a suspected drug caused the event."

Reports by month, five years

01733Jul 2021: 13Aug 2021: 18Sep 2021: 21Oct 2021: 24Nov 2021: 19Dec 2021: 262022Jan 2022: 16Feb 2022: 16Mar 2022: 19Apr 2022: 16May 2022: 17Jun 2022: 18Jul 2022: 19Aug 2022: 21Sep 2022: 26Oct 2022: 21Nov 2022: 20Dec 2022: 112023Jan 2023: 22Feb 2023: 17Mar 2023: 22Apr 2023: 15May 2023: 15Jun 2023: 21Jul 2023: 18Aug 2023: 22Sep 2023: 12Oct 2023: 22Nov 2023: 23Dec 2023: 122024Jan 2024: 16Feb 2024: 20Mar 2024: 29Apr 2024: 23May 2024: 24Jun 2024: 33Jul 2024: 30Aug 2024: 19Sep 2024: 12Oct 2024: 20Nov 2024: 14Dec 2024: 152025Jan 2025: 10Feb 2025: 16Mar 2025: 12Apr 2025: 11May 2025: 8Jun 2025: 6Jul 2025: 11Aug 2025: 7Sep 2025: 7Oct 2025: 6Nov 2025: 7Dec 2025: 92026Jan 2026: 12Feb 2026: 8Mar 2026: 10Apr 2026: 6May 2026: 8Jun 2026: 5

Reports by the month FDA received them. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases.

By year received

01282552017: 2320172018: 7820182019: 5920192020: 9120202021: 17520212022: 22020222023: 22120232024: 25520242025: 11020252026: 492026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Alunbrig reports recording the termmedian drug in kinase inhibitor

  1. Non-small cell lung cancer10.9%140
  2. Lung neoplasm malignantlung cancer9%115
  3. Diarrhoealoose or frequent stools5.8%74
  4. Off label useused for a purpose or in a way not on the label5.4%69
  5. Disease progressionthe disease advanced5.2%66
  6. Nauseafeeling sick5.1%65
  7. Deaththe patient died; cause not stated by this term4.6%59
  8. Drug ineffectivethe medicine did not work as expected3.9%50
  9. Hypertensionhigh blood pressure3.4%43
  10. Amylase increased3%39
  11. Rashskin rash3%39
  12. Fatiguetiredness2.8%36
  13. No adverse eventno adverse event was reported2.6%33
  14. Pleural effusionfluid around the lung2.4%31
  15. Decreased appetitereduced appetite2.3%29
  16. Renal impairmentreduced kidney function2.2%28
  17. Dyspnoeashortness of breath2%26
  18. Pyrexiafever2%26
  19. Coughcough2%25
  20. Aspartate aminotransferase increasedraised liver enzyme (AST)1.8%23
  21. Vomitingbeing sick1.8%23
  22. Headachehead pain1.6%21

Top 30 of 214 MedDRA preferred terms recorded across these reports, with a plain-language gloss where one is available. One report can record several terms. The hollow bar is the median share across the 100 drugs in the kinase inhibitor class; it describes the reports, not the patients. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic."

Outcomes recorded

Death13.7%176
Life-threatening2.3%29
Hospitalisation (initial or prolonged)22.5%288
Disability0.5%7
Congenital anomaly0%0
Other serious71.2%912
Not serious18.4%236

Outcome flags as the reporter set them; a report can carry several, and "other serious" is FDA's own category for serious reports outside the named outcomes. Grey bar: all 849,161 reports in the class. FDA has not verified any outcome and states that the reports "cannot be used to estimate the incidence of these events."

Patients and reporters

Patient age

Under 20%0
2 to 110.1%1
12 to 170.2%2
18 to 447.9%101
45 to 6427.2%348
65 to 7415%192
75 and over18.8%241
Age not given30.9%396

Patient sex

Female48.2%618
Male41%525
Not given10.8%138

Who reported

Physician49.8%638
Pharmacist14.1%180
Other health professional13.6%174
Lawyer0%0
Consumer or non-health professional22.2%284
Not given0.4%5

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 28.9% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Lung neoplasm malignant36428.4%
Non-small cell lung cancer33726.3%
Lung adenocarcinoma524.1%
Lung adenocarcinoma stage iv211.6%
Non-small cell lung cancer metastatic211.6%
Neoplasm malignant151.2%

The indication field is filled in by the reporter and is often blank; shares are of all 1,281 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Alunbrig reports
Lorbrena241.9%
Cisplatin221.7%
Paclitaxel221.7%
Capecitabine211.6%
Mitomycin211.6%
Oxaliplatin211.6%
Gemcitabine201.6%
Trastuzumab201.6%
Aspirin171.3%
Lorlatinib171.3%

Other products listed in reports where Alunbrig is a suspect product, whatever their own role. Co-listing means the two were recorded together; it says nothing about either product's part in the event. Only the 2,500 most-reported names are counted here.

In context

MeasureAlunbrigKinase inhibitorAll reports
Reports as suspect product1,281849,16120,646,523
Share of that pool—0.2%0%
Reports, latest 12 months96—1,332,454
Marked serious81.6%70.8%57.4%
Death recorded among outcomes, per 1,000 reports13719091
Hospitalisation recorded, per 1,000 reports225264213
Consumer-filed share22.2%42.3%45.8%
Top term, share of reportsNon-small cell lung cancer 10.9%median 0%0%

Shares are of reports, not of patients treated. The number of people taking a product is not in the data, so none of these figures is a rate, and differences between columns reflect who takes a product, who reports and how long it has been sold. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic."

Other drugs in the kinase inhibitor class

DrugName typeReportsLatest 12 monthsMarked serious
Ibrancebrand81,9122,38047.1%
Imbruvicabrand67,0392,28374.4%
Cabometyxbrand41,8184,90440.4%
Sutentbrand33,21517574.5%
Afinitorbrand30,70616171.3%
Sprycelbrand27,25555749.7%
Tasignabrand24,91132870.9%
Kisqalibrand24,6033,41379.2%
Ofevbrand23,9072,43466.9%
Gleevecbrand23,1328174.7%
Tagrissobrand23,0851,41092.3%
Lenvimabrand22,3502,64387.3%
Votrientbrand22,08411960.9%
Mekinistbrand17,07091664%
Inlytabrand15,69638860.9%

Ordered by report count for navigation only. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic." A brand and its generic are separate rows because reporters name them separately.

Questions about Alunbrig reports

How many adverse event reports has FDA received for Alunbrig?

1,281 reports list Alunbrig as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 96 of them arrived in the latest 12 months. Another 45 list it only as a concomitant medication.

What reactions are recorded in Alunbrig reports?

non-small cell lung cancer (10.9%), blood creatine phosphokinase increased (9.8%), lung neoplasm malignant (9%), metastases to central nervous system (7%) and diarrhoea (5.8%). These are MedDRA preferred terms coded from what the reporter described; a report can list several, and a term's presence is not a finding that Alunbrig was responsible.

How serious are the reports?

81.6% are marked serious by the reporter. Among the outcomes recorded, 13.7% of reports include death and 22.5% include hospitalisation. FDA has not verified these outcomes and states that the reports "cannot be used to estimate the incidence" of the events.

Who files these reports?

physician (49.8%), consumer or non-health professional (22.2%) and pharmacist (14.1%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Alunbrig rising?

96 reports in the 12 months to June 2026, down 45% from 173 in the 12 months before. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases. Counts also move with how many people take a product, its time on the market and publicity.

Do these reports show that Alunbrig was responsible for these reactions?

No. FDA states that "a causal relationship cannot be established between product and reactions listed in a report" and that for any given report "there is no certainty that a suspected drug caused the event." The reaction may relate to the condition being treated, to other medicines, or to something else.

Is this a list of the side effects of Alunbrig?

No. It is a count of what was reported to FDA. The adverse reactions observed in clinical studies are printed on the FDA-approved label, which a pharmacist or clinician can go through with you.

How do I report an adverse event?

Consumers and health professionals can report to FDA through MedWatch (Form FDA 3500 online, or 1-800-FDA-1088), or to the manufacturer, which must pass reports on. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Drug Adverse Event (FAERS) bulk export released 28 Sep 2026, which holds reports FDA received through 30 Jun 2026. Drug names are as reported, resolved to the brand or generic name on the FDA label where openFDA's harmonisation matched them; classes are the pharmacologic class (EPC) from the label and the National Drug Code Directory of 17 Sep 2026. A report counts here when it lists Alunbrig as a suspect or interacting product; reports listing it only as a concomitant medication (45) are excluded. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.