Reported Reactions

Drugs

Generic name

Apalutamide: adverse event reports filed with FDA

1,039 reports list it as a suspect or interacting product, 2015–2026.

1,039
reports as suspect product
0% of all reports · about 96 a year
152
reports, 12 months to June 2026
91 in the 12 months before
94%
marked serious by the reporter
57.4% across all reports
10.1%
record death among outcomes, as reported
105 reports · not verified by FDA

1,039 adverse event reports received by FDA list apalutamide, a generic name as a suspect or interacting product, from September 2015 to June 2026. A further 348 reports list it only as a concomitant medication, and those are not counted in the figures on this page.

In the 12 months to June 2026, 152 reports listed it, up 67% from 91 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 96 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 rash (7.4%), hot flush (6.7%) and fatigue (6.5%). A report can list several reactions, so shares add to more than 100%; 257 different terms appear across these reports. Rash is recorded in 7.4% of these reports, against 2.1% of all reports in the database.

94% of the reports are marked serious by the reporter; 10.1% record death among the outcomes and 42.1% record hospitalisation, as reported. 45.6% of the reports came from physicians, and the largest patient age group is 75 and over (38.3%). 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: 8Aug 2021: 9Sep 2021: 2Oct 2021: 3Nov 2021: 10Dec 2021: 52022Jan 2022: 7Feb 2022: 6Mar 2022: 33Apr 2022: 5May 2022: 11Jun 2022: 8Jul 2022: 18Aug 2022: 10Sep 2022: 16Oct 2022: 19Nov 2022: 19Dec 2022: 132023Jan 2023: 19Feb 2023: 13Mar 2023: 19Apr 2023: 21May 2023: 16Jun 2023: 13Jul 2023: 11Aug 2023: 12Sep 2023: 16Oct 2023: 21Nov 2023: 24Dec 2023: 172024Jan 2024: 16Feb 2024: 20Mar 2024: 17Apr 2024: 18May 2024: 19Jun 2024: 15Jul 2024: 9Aug 2024: 7Sep 2024: 9Oct 2024: 7Nov 2024: 9Dec 2024: 92025Jan 2025: 7Feb 2025: 2Mar 2025: 7Apr 2025: 6May 2025: 3Jun 2025: 16Jul 2025: 9Aug 2025: 12Sep 2025: 18Oct 2025: 5Nov 2025: 33Dec 2025: 282026Jan 2026: 5Feb 2026: 6Mar 2026: 12Apr 2026: 10May 2026: 6Jun 2026: 8

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

01012022015: 120152016: 42017: 520172018: 422019: 6520192020: 1342021: 7320212022: 1652023: 20220232024: 1552025: 14620252026: 47

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Apalutamide reports recording the termall reports in the database

  1. Rashskin rash7.4%77
  2. Hot flusha hot flush6.7%70
  3. Fatiguetiredness6.5%68
  4. Deaththe patient died; cause not stated by this term5.4%56
  5. Drug interactionan interaction between medicines4.8%50
  6. Product dose omission issuea dose was missed4.6%48
  7. Astheniaweakness or lack of energy4.1%43
  8. Falla fall3.5%36
  9. Hypertensionhigh blood pressure3.5%36
  10. Drug ineffectivethe medicine did not work as expected3.2%33
  11. Diarrhoealoose or frequent stools2.7%28
  12. Dizzinesslight-headedness or unsteadiness2.6%27
  13. Arthralgiajoint pain2.5%26
  14. Anaemialow red blood cells1.8%19
  15. Erectile dysfunctiondifficulty getting or keeping an erection1.8%19
  16. Off label useused for a purpose or in a way not on the label1.8%19
  17. Urinary tract infectionbladder or urinary infection1.7%18
  18. Neuropathy peripheralnerve damage in hands or feet1.6%17
  19. Pruritusitching1.6%17
  20. Weight decreasedweight loss1.6%17
  21. Blood pressure increaseda raised blood pressure reading1.5%16
  22. Atrial fibrillationan irregular heart rhythm1.4%15
  23. Headachehead pain1.4%15
  24. Hypothyroidismunderactive thyroid1.4%15
  25. Nauseafeeling sick1.4%15
  26. Pain in extremitypain in an arm or leg1.4%15
  27. Decreased appetitereduced appetite1.3%14
  28. Weight increasedweight gain1.3%13
  29. Chest painchest pain1.2%12

Top 30 of 257 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%105
Life-threatening6.6%69
Hospitalisation (initial or prolonged)42.1%437
Disability1.8%19
Congenital anomaly0%0
Other serious54.7%568
Not serious6%62

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%0
18 to 440.2%2
45 to 6412.1%126
65 to 7427.1%282
75 and over38.3%398
Age not given22.2%231

Patient sex

Female0.2%2
Male93.6%972
Not given6.3%65

Who reported

Physician45.6%474
Pharmacist5.2%54
Other health professional25.4%264
Lawyer0%0
Consumer or non-health professional22.3%232
Not given1.4%15

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 40.6% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Prostate cancer41039.5%
Prostate cancer metastatic15815.2%
Hormone-dependent prostate cancer13212.7%
Hormone-refractory prostate cancer807.7%
Prostate cancer stage 030.3%
Neoplasm malignant20.2%

The indication field is filled in by the reporter and is often blank; shares are of all 1,039 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Apalutamide reports
Abiraterone acetate12612.1%
Prednisone807.7%
Leuprolide acetate706.7%
Aspirin676.4%
Atorvastatin626%
Eligard605.8%
Amlodipine575.5%
Docetaxel424%
Abiraterone393.8%
Enzalutamide353.4%

Other products listed in reports where Apalutamide 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

MeasureApalutamideAll reports
Reports as suspect product1,03920,646,523
Share of that pool—0%
Reports, latest 12 months1521,332,454
Marked serious94%57.4%
Death recorded among outcomes, per 1,000 reports10191
Hospitalisation recorded, per 1,000 reports421213
Consumer-filed share22.3%45.8%
Top term, share of reportsRash 7.4%2.1%

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 Apalutamide reports

How many adverse event reports has FDA received for Apalutamide?

1,039 reports list Apalutamide as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 152 of them arrived in the latest 12 months. Another 348 list it only as a concomitant medication.

What reactions are recorded in Apalutamide reports?

rash (7.4%), hot flush (6.7%), fatigue (6.5%), death (5.4%) and drug interaction (4.8%). 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 Apalutamide was responsible.

How serious are the reports?

94% are marked serious by the reporter. Among the outcomes recorded, 10.1% of reports include death and 42.1% 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 (45.6%), other health professional (25.4%) and consumer or non-health professional (22.3%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Apalutamide rising?

152 reports in the 12 months to June 2026, up 67% from 91 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 Apalutamide 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 Apalutamide?

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 Apalutamide as a suspect or interacting product; reports listing it only as a concomitant medication (348) 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.