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A phase II study of tandutinib (MLN518), a selective inhibitor of type III tyrosine receptor kinases, in patients with metastatic renal cell carcinoma.

Abstract
Therapies which target VEGF and mTOR are now available for patients with metastatic renal cell carcinoma, but there is a continued need to develop agents for patients who become refractory to these initial agents. Tandutinib is a relatively selective inhibitor of type III tyrosine kinase receptor kinases with promising activity in some tumors. In this trial, 10 patients with metastatic renal cell carcinoma refractory to previous therapy with sunitinib or sorafenib (median age 61 years, 80% performance status 0, 60% intermediate MSKCC risk classification) received tandutinib 500 mg bid daily with RECIST-defined response as the primary endpoint and progression-free survival (PFS) and overall survival (OS) as secondary endpoints. No patient had more than 2 cycles of therapy and 50% of patients only received 1 cycle with 70% of patients discontinuing for progressive disease and 30% for toxicity. Tandutinib was not well tolerated with dose reduction in 60% of patients due to adverse events. The most common grade 3 toxicity was fatigue (30%). Tandutinib had no clinical activity and due to the excessive toxicity should not be developed further in patients with sunitinib or sorafenib-refractory metastatic renal cell carcinoma.
AuthorsDale R Shepard, Matthew M Cooney, Paul Elson, Ronald M Bukowski, Robert Dreicer, Brian I Rini, Jorge A Garcia
JournalInvestigational new drugs (Invest New Drugs) Vol. 30 Issue 1 Pg. 364-7 (Feb 2012) ISSN: 1573-0646 [Electronic] United States
PMID20711630 (Publication Type: Clinical Trial, Phase II, Journal Article)
Chemical References
  • Antineoplastic Agents
  • Piperazines
  • Protein Kinase Inhibitors
  • Quinazolines
  • tandutinib
  • Receptor Protein-Tyrosine Kinases
Topics
  • Aged
  • Antineoplastic Agents (administration & dosage, adverse effects, therapeutic use)
  • Carcinoma, Renal Cell (drug therapy, enzymology, mortality, secondary)
  • Disease-Free Survival
  • Female
  • Humans
  • Kaplan-Meier Estimate
  • Kidney Neoplasms (drug therapy, enzymology, mortality, pathology)
  • Male
  • Middle Aged
  • Ohio
  • Piperazines (administration & dosage, adverse effects, therapeutic use)
  • Protein Kinase Inhibitors (administration & dosage, adverse effects, therapeutic use)
  • Quinazolines (administration & dosage, adverse effects, therapeutic use)
  • Receptor Protein-Tyrosine Kinases (antagonists & inhibitors, metabolism)
  • Time Factors
  • Treatment Outcome

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