Journal
INVESTIGATIONAL NEW DRUGS
Volume 30, Issue 4, Pages 1614-1620Publisher
SPRINGER
DOI: 10.1007/s10637-011-9708-3
Keywords
Pancreatic cancer; Phase II; MKC-1; Importin; Tubulin
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Funding
- NCI NIH HHS [K07 CA140790, K07 CA148894] Funding Source: Medline
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Background MKC-1 is an orally available cell cycle inhibitor with downstream targets that include tubulin and the importin-beta family. We conducted an open-label Phase II study with MKC-1 in patients with advanced pancreatic cancer. Methods Eligibility criteria included unresectable or metastatic pancreatic cancer, performance status of 1 or better, and failure of at least one prior regimen of chemotherapy. MKC-1 was administered orally, twice daily, initially at 100 mg/m(2) dosing for 14 consecutive days of a 28-day cycle. This schedule was modified during the trial to fixed and continuous dosing of 150 mg per day. Results 20 of an original target of 33 patients were accrued, with a median age of 61 (range 44-81). No objective responses were observed, with one patient demonstrating stable disease. Overall survival was 101 days from the start of MKC-1 administration, and median time to progression was 42 days. The most common adverse events listed as related or possibly related to MKC-1 administration were hematologic toxicities and fatigue. One patient developed grade 5 (fatal) pancytopenia. Grade 3 and 4 events included cytopenias (lymphopenia, anemia), hyperbilirubinemia, pneumonia, mucositis, fatigue, infusion reaction, anorexia, and hypoalbuminemia. Conclusions MKC-1 administration was associated with substantial toxicity and did not demonstrate sufficient activity in patients with advanced pancreatic cancer to justify further exploration in this patient population.
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