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. 2017 Oct;58(10):1059-1064.

Retrospective evaluation of toceranib (Palladia) treatment for canine metastatic appendicular osteosarcoma

Changseok Kim  1 , Arata Matsuyama  1 , Anthony J Mutsaers  1 , J Paul Woods  1
Affiliations

Retrospective evaluation of toceranib (Palladia) treatment for canine metastatic appendicular osteosarcoma

Changseok Kim et al. Can Vet J. 2017 Oct.

Abstract
in English, French

This retrospective study evaluated the outcomes of dogs with macroscopic pulmonary metastasis of appendicular osteosarcoma (OSA) treated with toceranib. Medical records of 20 dogs with macroscopic pulmonary metastasis of OSA that received toceranib were reviewed. The median dose and duration of toceranib administration were 2.52 mg/kg (range: 2.12 to 2.72 mg/kg) and 60 days (range: 17 to 231 days). The median progression free survival (PFS) and overall survival (OS) were 36 days (range: 17 to 231 days) and 90 days (range: 17 to 433 days), respectively. The clinical benefit rate was 10% (2/20; 1 partial response and 1 stable disease). The longest length of initial pulmonary nodules had significant impact on both PFS (P = 0.01) and OS (P = 0.02). The prognosis for dogs with metastatic OSA was poor with only 10% of dogs showing clinical benefit from toceranib. These results suggest that toceranib may not improve outcome in dogs with macroscopic pulmonary metastasis of OSA.

Évaluation rétrospective du traitement avec tocéranib (Palladia) pour l’ostéosarcome appendiculaire métastatique canin. Cette étude rétrospective a évalué les résultats des chiens souffrant de métastase pulmonaire macroscopique de l’ostéosarcome appendiculaire (OSE) traité avec tocéranib. Les dossiers médicaux de 20 chiens atteints de métastase pulmonaire macroscopique d’OSE qui ont reçu tocéranib ont été évalués. La dose médiane et la durée de l’administration de tocéranib étaient de 2,52 mg/kg (étendue de 2,12 à 2,72 mg/kg) et de 60 jours (étendue de 17 à 231 jours). La progression de survie libre (PSL) médiane et la survie totale (ST) étaient de 36 jours (étendue de 17 à 231 jours) et de 90 jours (étendue de 17 à 433 jours), respectivement. Le taux de bienfaits cliniques étaient de 10 % (2/20; 1 réponse partielle et 1 maladie stable). Le plus long intervalle avant l’apparition des nodules pulmonaires initiaux avait un impact important sur la PSL (P = 0,01) et la ST (P = 0,02). Le pronostic pour les chiens atteints d’OSE métastatique était mauvais et seulement 10 % des chiens ont manifesté des bienfaits cliniques lors de l’usage de tocéranib. Ces résultats suggèrent que le tocéranib pourraient ne pas améliorer les résultats cliniques chez les chiens souffrant de métastase pulmonaire macroscopique causée par OSE.(Traduit par Isabelle Vallières).

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Figures

Figure 1
Figure 1
Kaplan-Meier progression free survival (PFS) curve for dogs with macroscopic pulmonary metastasis of appendicular OSA treated with toceranib (n = 20). The median PFS was 36 days.
Figure 2
Figure 2
Kaplan-Meier overall survival (OS) curve for dogs with macroscopic pulmonary metastasis of appendicular OSA treated with toceranib (n = 20). One dog alive at the end of study was censored (+ mark). The median OS was 90 days.
See this image and copyright information in PMC

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