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Invest New Drugs. 2009 Aug;27(4):374-8. doi: 10.1007/s10637-008-9184-6. Epub 2008 Oct 9.

Phase II study of calcitriol-enhanced docetaxel in patients with previously untreated metastatic or locally advanced pancreatic cancer.

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  • 1British Columbia Cancer Agency and University of British Columbia, BC, Canada.



To determine the safety and efficacy of weekly high-dose oral calcitriol and docetaxel, given to patients with non-resectable, incurable pancreatic cancer.


Twenty-five patients were enrolled onto this phase II study. Patients were treated with oral calcitriol 0.5 microg/kg on day 1, followed by docetaxel 36 mg/m(2) IV on day 2, administered weekly for three consecutive weeks, followed by 1 week without treatment. Patients followed a low-calcium diet and increased their hydration. The primary end-point of the trial was time-to-progression.


Three of 25 patients attained a partial response (12%, 95% CI 3 to 31) and seven (28%) achieved stable disease. Median time-to-progression was 15 weeks, and median overall survival was 24 weeks. Toxicities observed (hyperglycemia, fatigue) were mostly attributable to the docetaxel or its pre-treatment.


This regimen of high-dose calcitriol with docetaxel may have activity in incurable pancreatic cancer, with a modest increase in TTP when compared to historical findings using single-agent docetaxel. However, results do not appear superior to those seen with gemcitabine, with or without erlotinib.

[PubMed - indexed for MEDLINE]
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