Reported Reactions

Drugs › Kinase inhibitor

Brand name · Remibrutinib

Rhapsido: adverse event reports filed with FDA

848 reports list it as a suspect or interacting product, 2025–2026. Class: Kinase inhibitor.

848
reports as suspect product
0% of all reports · about 848 a year
848
reports, 12 months to June 2026
0 in the 12 months before
17.8%
marked serious by the reporter
70.8% across the class
0%
record death among outcomes, as reported
0 reports · not verified by FDA

Between August 2025 and June 2026, 848 adverse event reports received by FDA list the brand name Rhapsido (remibrutinib) as a suspect or interacting product. Reports that mention it only as a concomitant medication (38) are left out of every figure here.

In the 12 months to June 2026, 848 reports listed it, with none 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 848 reports a year and 0% of the 20,646,523 reports in the database, and 0.1% 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 petechiae (15.9%), urticaria (13%) and contusion (10.5%). A report can list several reactions, so shares add to more than 100%; 167 different terms appear across these reports. Petechiae is recorded in 15.9% of these reports, with no counterpart in the median kinase inhibitor drug (0%).

17.8% of the reports are marked serious by the reporter (70.8% across the class); 0% record death among the outcomes and 2% record hospitalisation, as reported. 43.9% of the reports came from consumers, and the largest patient age group is 18 to 44 (15.2%). 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

059117Jul 2021: 0Aug 2021: 0Sep 2021: 0Oct 2021: 0Nov 2021: 0Dec 2021: 02022Jan 2022: 0Feb 2022: 0Mar 2022: 0Apr 2022: 0May 2022: 0Jun 2022: 0Jul 2022: 0Aug 2022: 0Sep 2022: 0Oct 2022: 0Nov 2022: 0Dec 2022: 02023Jan 2023: 0Feb 2023: 0Mar 2023: 0Apr 2023: 0May 2023: 0Jun 2023: 0Jul 2023: 0Aug 2023: 0Sep 2023: 0Oct 2023: 0Nov 2023: 0Dec 2023: 02024Jan 2024: 0Feb 2024: 0Mar 2024: 0Apr 2024: 0May 2024: 0Jun 2024: 0Jul 2024: 0Aug 2024: 0Sep 2024: 0Oct 2024: 0Nov 2024: 0Dec 2024: 02025Jan 2025: 0Feb 2025: 0Mar 2025: 0Apr 2025: 0May 2025: 0Jun 2025: 0Jul 2025: 0Aug 2025: 1Sep 2025: 0Oct 2025: 9Nov 2025: 88Dec 2025: 962026Jan 2026: 108Feb 2026: 104Mar 2026: 109Apr 2026: 110May 2026: 117Jun 2026: 106

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

Reactions recorded in the reports

share of Rhapsido reports recording the termmedian drug in kinase inhibitor

  1. Petechiaetiny bleeding spots in the skin15.9%135
  2. Urticariahives13%110
  3. Contusiona bruise10.5%89
  4. Drug ineffectivethe medicine did not work as expected9.4%80
  5. Headachehead pain7.2%61
  6. Pruritusitching7%59
  7. Nauseafeeling sick4.5%38
  8. Off label useused for a purpose or in a way not on the label4.1%35
  9. Rashskin rash3.4%29
  10. Coughcough3.2%27
  11. Condition aggravatedthe condition being treated got worse3.1%26
  12. Fatiguetiredness2.9%25
  13. Product dose omission issuea dose was missed2.9%25
  14. Chronic spontaneous urticaria2.2%19
  15. Abdominal painstomach or belly pain2%17
  16. Throat clearing2%17
  17. Diarrhoealoose or frequent stools1.8%15
  18. Gingival bleedingbleeding gums1.7%14
  19. Rhinorrhoeaa runny nose1.7%14
  20. Oropharyngeal painsore throat1.5%13
  21. Vomitingbeing sick1.5%13
  22. Anxietyanxiety1.4%12
  23. Hypersensitivityan allergic-type reaction1.4%12
  24. Migrainemigraine1.4%12
  25. Anaphylactic reactiona severe, sudden allergic reaction1.3%11
  26. Confusional stateconfusion1.3%11
  27. Dizzinesslight-headedness or unsteadiness1.3%11
  28. Dyspnoeashortness of breath1.3%11
  29. Erythemaskin redness1.3%11

Top 30 of 167 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

Death0%0
Life-threatening0.6%5
Hospitalisation (initial or prolonged)2%17
Disability0.6%5
Congenital anomaly0%0
Other serious15.4%131
Not serious82.2%697

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 20.1%1
2 to 110.1%1
12 to 170.6%5
18 to 4415.2%129
45 to 649.8%83
65 to 743.8%32
75 and over1.4%12
Age not given69%585

Patient sex

Female77.2%655
Male18.8%159
Not given4%34

Who reported

Physician27.1%230
Pharmacist0.9%8
Other health professional27.7%235
Lawyer0%0
Consumer or non-health professional43.9%372
Not given0.4%3

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 99.6% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Chronic spontaneous urticaria44051.9%
Urticaria647.5%
Idiopathic urticaria303.5%
Urticaria chronic161.9%
Urticaria cholinergic30.4%
Pruritus20.2%

The indication field is filled in by the reporter and is often blank; shares are of all 848 reports.

In context

MeasureRhapsidoKinase inhibitorAll reports
Reports as suspect product848849,16120,646,523
Share of that pool—0.1%0%
Reports, latest 12 months848—1,332,454
Marked serious17.8%70.8%57.4%
Death recorded among outcomes, per 1,000 reports019091
Hospitalisation recorded, per 1,000 reports20264213
Consumer-filed share43.9%42.3%45.8%
Top term, share of reportsPetechiae 15.9%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 Rhapsido reports

How many adverse event reports has FDA received for Rhapsido?

848 reports list Rhapsido as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 848 of them arrived in the latest 12 months. Another 38 list it only as a concomitant medication.

What reactions are recorded in Rhapsido reports?

petechiae (15.9%), urticaria (13%), contusion (10.5%), drug ineffective (9.4%) and headache (7.2%). 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 Rhapsido was responsible.

How serious are the reports?

17.8% are marked serious by the reporter. Among the outcomes recorded, 0% of reports include death and 2% 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?

consumer or non-health professional (43.9%), other health professional (27.7%) and physician (27.1%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Rhapsido rising?

848 reports in the 12 months to June 2026, with none 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 Rhapsido 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 Rhapsido?

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 Rhapsido as a suspect or interacting product; reports listing it only as a concomitant medication (38) 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.