Sequential low-dose rate half-body irradiation and chemotherapy for the treatment of canine multicentric lymphoma

D. M. Lurie, I. K. Gordon, Alain P Theon, C. O. Rodriguez, S. E. Suter, Michael S Kent

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Background: Sequential half-body irradiation (HBI) combined with chemotherapy is feasible in treating canine lymphoma, but prolonged interradiation intervals may affect efficacy. A 2-week interradiation interval is possible in most dogs receiving low-dose rate irradiation (LDRI) protocols at 6 Gy dose levels. Hypothesis: LDRI incorporated into a cyclophosphamide, doxorubicin, vincritine, and prednisone (CHOP)-based chemotherapy protocol is effective for the treatment of lymphoma in dogs. Animals: Thirty-eight client-owned animals diagnosed with multicentric lymphoma. Methods: Retrospective study evaluating the efficacy and prognostic factors for the treatment of canine lymphoma with sequential HBI and chemotherapy. Results: The median 1st remission was 410 days (95% confidence interval [CI] 241-803 days). The 1-, 2-, and 3-year 1st remission rates were 54, 42, and 31%. The median overall survival was 684 days (95% CI 334-1,223 days). The 1-, 2-, and 3-year survival rates were 66, 47, and 44%. Conclusions and Clinical Relevance: Results of this study suggest that treatment intensification by a 2-week interradiation treatment interval coupled with interradiation chemotherapy is an effective treatment for dogs with lymphoma.

Original languageEnglish (US)
Pages (from-to)1064-1070
Number of pages7
JournalJournal of Veterinary Internal Medicine
Issue number5
StatePublished - Sep 2009


  • Combination therapy
  • Dogs
  • Efficacy

ASJC Scopus subject areas

  • veterinary(all)


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