Assessment of temporal association of relapse of canine multicentric lymphoma with components of the CHOP protocol: Is cyclophosphamide the weakest link?

•Dogs with lymphoma relapsed significantly more frequently when cyclophosphamide was used as an induction agent.•New chemotherapy protocols which replace cyclophosphamide with other agent/s might improve outcomes.•The cumulative or synergistic effects of previously used drugs did not affect treatmen...

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Veröffentlicht in:The veterinary journal (1997) 2016-07, Vol.213, p.87-89
Hauptverfasser: Wang, Shang-Lin, Lee, Jih-Jong, Liao, Albert Taiching
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container_title The veterinary journal (1997)
container_volume 213
creator Wang, Shang-Lin
Lee, Jih-Jong
Liao, Albert Taiching
description •Dogs with lymphoma relapsed significantly more frequently when cyclophosphamide was used as an induction agent.•New chemotherapy protocols which replace cyclophosphamide with other agent/s might improve outcomes.•The cumulative or synergistic effects of previously used drugs did not affect treatment.•Relatively higher dose rates in small dogs may produce better responses and longer remission times. Combination chemotherapy, using cyclophosphamide, hydroxydaunorubicin, vincristine and prednisolone (CHOP), is the most commonly used treatment for canine lymphoma. Most affected dogs respond during the initial stages of chemotherapy, but many relapse. The aim of this study was to evaluate the relationship between the use of specific chemotherapy drugs and clinical relapse, using the modified Madison-Wisconsin, 25 week chemotherapy protocol. Forty-one of 68 dogs affected with multicentric lymphoma relapsed during the treatment period. Relapse occurred more frequently after the administration of cyclophosphamide (n = 24; P 
doi_str_mv 10.1016/j.tvjl.2016.04.013
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Combination chemotherapy, using cyclophosphamide, hydroxydaunorubicin, vincristine and prednisolone (CHOP), is the most commonly used treatment for canine lymphoma. Most affected dogs respond during the initial stages of chemotherapy, but many relapse. The aim of this study was to evaluate the relationship between the use of specific chemotherapy drugs and clinical relapse, using the modified Madison-Wisconsin, 25 week chemotherapy protocol. Forty-one of 68 dogs affected with multicentric lymphoma relapsed during the treatment period. Relapse occurred more frequently after the administration of cyclophosphamide (n = 24; P &lt; 0.01), compared with vincristine (n = 9) or doxorubicin (n = 5). 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Combination chemotherapy, using cyclophosphamide, hydroxydaunorubicin, vincristine and prednisolone (CHOP), is the most commonly used treatment for canine lymphoma. Most affected dogs respond during the initial stages of chemotherapy, but many relapse. The aim of this study was to evaluate the relationship between the use of specific chemotherapy drugs and clinical relapse, using the modified Madison-Wisconsin, 25 week chemotherapy protocol. Forty-one of 68 dogs affected with multicentric lymphoma relapsed during the treatment period. Relapse occurred more frequently after the administration of cyclophosphamide (n = 24; P &lt; 0.01), compared with vincristine (n = 9) or doxorubicin (n = 5). 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subjects Animals
Antineoplastic Combined Chemotherapy Protocols - therapeutic use
Canine
Chemotherapy
Cyclophosphamide
Cyclophosphamide - therapeutic use
Dog Diseases - drug therapy
Dogs
Doxorubicin - therapeutic use
Female
Lymphoma
Lymphoma - drug therapy
Lymphoma - veterinary
Male
Prednisone - therapeutic use
Recurrence
Relapse
Vincristine - therapeutic use
title Assessment of temporal association of relapse of canine multicentric lymphoma with components of the CHOP protocol: Is cyclophosphamide the weakest link?
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