Vol 10: GS-9219-VDC-1101 - a prodrug of the acyclic nucleotide PMEG has antitumor activity inspontaneous canine multiple myeloma.Reportar como inadecuado



 Vol 10: GS-9219-VDC-1101 - a prodrug of the acyclic nucleotide PMEG has antitumor activity inspontaneous canine multiple myeloma.


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This article is from BMC Veterinary Research, volume 10.AbstractBackground: Multiple myeloma (MM) is an important human and canine cancer for which novel therapies remain necessary. VDC-1101 (formerly GS-9219), a novel double prodrug of the anti-proliferative nucleotide analog 9-(2-phosphonylmethoxyethyl) guanine (PMEG), possesses potent cytotoxic activity in vitro in human lymphoblasts and leukemia cell lines and in vivo in spontaneous canine lymphoma. Given the similarity in lineage between lymphoma and MM, we hypothesized that VDC-1101 would be active against MM. Results: We evaluated the in vitro antiproliferative effects of VDC-1101 against 3 human MM cell lines, and we performed a phase-II clinical trial in 14 dogs with spontaneous MM. Each dog was treated with a maximum of 6 doses of VDC-1101 monotherapy over 10–15 weeks. Dose-dependent antiproliferative activity was observed in all evaluated cell lines. Major antitumor responses (reduction of serum paraprotein and resolution of hypercalcemia, peripheral cytopenias and bone marrow plasmacytosis) were observed in 9 of 11 evaluable dogs for a median of 172 days, including a durable stringent complete response (>1047 days) in a dog with melphalan-refractory disease. 2 dogs were euthanized due to presumed pulmonary fibrosis; there were no other dose-limiting toxicities encountered. Conclusions: In conclusion, VDC-1101 has significant anti-tumor activity at well-tolerated doses in spontaneous canine MM.



Autor: Thamm, Douglas H; Vail, David M; Kurzman, Ilene D; Babusis, Darius; Ray, Adrian S; Sousa-Powers, Noel; Tumas, Daniel B

Fuente: https://archive.org/







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