Reaction profile

The FDA adverse-event record for haemangiosarcoma

215 FDA adverse-event reports reference haemangiosarcoma (VeDDRA 2072). Plate codes and volume neighbourhood below; species, breeds, and drugs follow.

#991 of 2,481
by report volume (all reactions)
215
reports citing this reaction
61.9%
death-coded share
Dog
most-affected species

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Haemangiosarcoma has 215 reports now versus 211 in that prior snapshot: 4 more (1.9%).

Report change
+4
Death-coded reports
+2
Death-coded share
−0.2 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Haemangiosarcoma changes

FDA AER · VeDDRA plate

Code 2072 VOL-LOW

VOL-LOW · DEATH-HOT · MID-PACK · PHOTO-FINISH · SPECIES-DOG · DRUG-LEAD · DESK-WIDE · BOOK-FULL

  • VOL-LOW 215 reports
  • DEATH-HOT 61.9%
  • MID-PACK #991/2481
  • PHOTO-FINISH Small intestine ulcer
  • SPECIES-DOG Dog · 209
  • DRUG-LEAD Oclacitinib Malea… · 55
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Small intestine ulcer (±0 reports)

Upper-third death-coded share drives the outcome stamps on this plate; volume band, corpus rank, and co-report peers follow. Not a clinical diagnosis.

Report-volume neighbourhood around Haemangiosarcoma

Highest and lowest poles plus nearest volume peers, not a full 2,500-reaction corpus board reprint.

Vomiting · highest174348Bradypnoea · near217Genital tract licking · near216Haemangiosarcoma · this reac…215Small intestine ulcer · near215Injection site mass N… · near214Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Haemangiosarcoma

Haemangiosarcoma: high death-coded share in the FDA AER plate

Signature read: Haemangiosarcoma's 61.9% death-coded share is among the highest in the openFDA reaction corpus. Report volume sits in the middle third of the reaction corpus. Death-coded share is upper-third: 133 of 215 reports (61.9% of named reports). Nearest volume peer: Small intestine ulcer (±0 reports). Lead species Dog (209). Lead co-reported drug Oclacitinib Maleate (55).

Read these counts as reporting volume, not risk: per our methodology, A high death-coded share in FDA filings does not prove causation; co-reporting is voluntary temporal association only. Browse the full reactions index or the about page for how PlainBreed frames FDA CVM extracts.

Species Most Affected

Dog 209
Cat 6

Breeds Most Affected

Retriever - Labrador 28
Retriever - Golden 26
Crossbred Canine/dog 16
Dog (unknown) 16
Shepherd Dog - German 14
Terrier - Bull - American Pit 11
Shepherd Dog - Australian 9
Beagle 6
Domestic Shorthair 5
Siberian Husky 5

Associated Drugs

Oclacitinib Maleate 55
Milbemycin Oxime + Spinosad 32
Carprofen 19
Milbemycin Oxime + Praziquantel 14
Trilostane 11
Maropitant Citrate 11
Polysulfated Glycosaminoglycan 10
Cyclosporine 10
Gabapentin 8
Afoxolaner 8
Grapiprant 8
Anti-Il31 Mab Mcs Lot #1283563 7
Fluralaner 13.64% 12-Week Chew 7
Bedinvetmab 7
Cyclosporine A 6
Fluralaner Chew Tablets 6
Ivermectin + Pyrantel As Pamoate Salt 6
Spinosad 5
Metronidazole 5
Firocoxib 227 Mg Chewable 4

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Haemangiosarcoma, both floored at ≥50 reports so the neighborhoods stay in the advertised mass (the volume chart above is the unfloored photo-finish strip).

Similar report volume

Nearest other reactions by FDA report count (215 here).

Similar death-coded share

Nearest other reactions by death-coded share (61.9% here), distinct from the volume row.

What to do with this reaction

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Haemangiosarcoma (#991 of 2,481 by report volume); death-coded 61.9%. PlainBreed reaction plate · death-coded share stamp 61.9% · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →