Reported Reactions

Drugs

Generic name

Encorafenib: adverse event reports filed with FDA

1,626 reports list it as a suspect or interacting product, 2017–2026.

1,626
reports as suspect product
0% of all reports · about 190 a year
220
reports, 12 months to June 2026
244 in the 12 months before
86.7%
marked serious by the reporter
57.4% across all reports
10.1%
record death among outcomes, as reported
164 reports · not verified by FDA

Between December 2017 and June 2026, 1,626 adverse event reports received by FDA list encorafenib, a generic name as a suspect or interacting product. Reports that mention it only as a concomitant medication (229) are left out of every figure here.

In the 12 months to June 2026, 220 reports listed it, down 10% from 244 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 190 reports a year and 0% of the 20,646,523 reports in the database. How many people take it is not in the data, so a count is not a rate of occurrence.

Reporters most often recorded off label use (8.2%), nausea (7.9%) and diarrhoea (7.6%). A report can list several reactions, so shares add to more than 100%; 358 different terms appear across these reports. Off label use is recorded in 8.2% of these reports, against 4.1% of all reports in the database.

86.7% of the reports are marked serious by the reporter; 10.1% record death among the outcomes and 43.3% record hospitalisation, as reported. 46.7% of the reports came from physicians, and the largest patient age group is 45 to 64 (28.2%). 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

01836Jul 2021: 22Aug 2021: 16Sep 2021: 28Oct 2021: 26Nov 2021: 17Dec 2021: 172022Jan 2022: 14Feb 2022: 20Mar 2022: 16Apr 2022: 16May 2022: 27Jun 2022: 23Jul 2022: 27Aug 2022: 21Sep 2022: 29Oct 2022: 36Nov 2022: 27Dec 2022: 242023Jan 2023: 34Feb 2023: 26Mar 2023: 25Apr 2023: 25May 2023: 31Jun 2023: 27Jul 2023: 19Aug 2023: 28Sep 2023: 31Oct 2023: 33Nov 2023: 25Dec 2023: 262024Jan 2024: 23Feb 2024: 19Mar 2024: 31Apr 2024: 30May 2024: 27Jun 2024: 16Jul 2024: 26Aug 2024: 19Sep 2024: 25Oct 2024: 23Nov 2024: 17Dec 2024: 152025Jan 2025: 11Feb 2025: 23Mar 2025: 21Apr 2025: 23May 2025: 13Jun 2025: 28Jul 2025: 16Aug 2025: 15Sep 2025: 22Oct 2025: 14Nov 2025: 23Dec 2025: 222026Jan 2026: 24Feb 2026: 22Mar 2026: 15Apr 2026: 14May 2026: 14Jun 2026: 19

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

01653302017: 120172018: 1020182019: 1920192020: 15520202021: 22120212022: 28020222023: 33020232024: 27120242025: 23120252026: 1082026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Encorafenib reports recording the termall reports in the database

  1. Off label useused for a purpose or in a way not on the label8.2%134
  2. Nauseafeeling sick7.9%128
  3. Diarrhoealoose or frequent stools7.6%123
  4. Fatiguetiredness6.8%111
  5. Pyrexiafever6.1%99
  6. Acute kidney injurysudden loss of kidney function5.2%84
  7. Anaemialow red blood cells4.1%67
  8. Rashskin rash4.1%67
  9. Vomitingbeing sick4.1%66
  10. Deaththe patient died; cause not stated by this term3.4%55
  11. Colitisinflamed bowel3.1%50
  12. Arthralgiajoint pain2.8%45
  13. Decreased appetitereduced appetite2.8%45
  14. Astheniaweakness or lack of energy2.6%43
  15. Alanine aminotransferase increasedraised liver enzyme (ALT)2.6%42
  16. Aspartate aminotransferase increasedraised liver enzyme (AST)2.4%39
  17. Constipationconstipation2.4%39
  18. Serous retinal detachment2.4%39
  19. Dyspnoeashortness of breath2.3%38
  20. General physical health deteriorationgeneral decline in health2.3%37
  21. Product use issuea problem in how the product was used2.2%36
  22. Drug ineffectivethe medicine did not work as expected2.2%35
  23. Rash maculo-papulara rash of flat and raised spots2.1%34
  24. Abdominal painstomach or belly pain2%32
  25. Myalgiamuscle pain1.9%31
  26. Sepsisa severe body-wide response to infection1.9%31

Top 30 of 358 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 share of all reports in the database; 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

Death10.1%164
Life-threatening5.1%83
Hospitalisation (initial or prolonged)43.3%704
Disability0.9%14
Congenital anomaly0.1%1
Other serious61.3%996
Not serious13.3%216

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 20,646,523 reports. 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%0
12 to 170.1%2
18 to 449.2%149
45 to 6428.2%459
65 to 7423%374
75 and over12.9%210
Age not given26.6%432

Patient sex

Female39.8%647
Male45.8%744
Not given14.5%235

Who reported

Physician46.7%760
Pharmacist5%81
Other health professional41%667
Lawyer0%0
Consumer or non-health professional6.6%108
Not given0.6%10

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 25.3% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Malignant melanoma49730.6%
Metastatic malignant melanoma24114.8%
Colorectal cancer metastatic17010.5%
Colon cancer885.4%
Colorectal cancer744.6%
Non-small cell lung cancer503.1%

The indication field is filled in by the reporter and is often blank; shares are of all 1,626 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Encorafenib reports
Binimetinib1,13769.9%
Cetuximab33720.7%
Fluorouracil1489.1%
Nivolumab1368.4%
Oxaliplatin1177.2%
Erbitux955.8%
Ipilimumab925.7%
Pantoprazole sodium835.1%
Leucovorin804.9%
Dexamethasone774.7%

Other products listed in reports where Encorafenib 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

MeasureEncorafenibAll reports
Reports as suspect product1,62620,646,523
Share of that pool—0%
Reports, latest 12 months2201,332,454
Marked serious86.7%57.4%
Death recorded among outcomes, per 1,000 reports10191
Hospitalisation recorded, per 1,000 reports433213
Consumer-filed share6.6%45.8%
Top term, share of reportsOff label use 8.2%4.1%

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."

Questions about Encorafenib reports

How many adverse event reports has FDA received for Encorafenib?

1,626 reports list Encorafenib as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 220 of them arrived in the latest 12 months. Another 229 list it only as a concomitant medication.

What reactions are recorded in Encorafenib reports?

off label use (8.2%), nausea (7.9%), diarrhoea (7.6%), fatigue (6.8%) and pyrexia (6.1%). 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 Encorafenib was responsible.

How serious are the reports?

86.7% are marked serious by the reporter. Among the outcomes recorded, 10.1% of reports include death and 43.3% 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 (46.7%), other health professional (41%) and consumer or non-health professional (6.6%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Encorafenib rising?

220 reports in the 12 months to June 2026, down 10% from 244 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 Encorafenib 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 Encorafenib?

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 Encorafenib as a suspect or interacting product; reports listing it only as a concomitant medication (229) 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.