Vitamin D3 Supplementation in Acute Myeloid Leukemia: Pharmacokinetic Study
PRIMARY OBJECTIVES: I. To assess patients with regards to changes in 25(OH)-D3 changes after
supplementation. II. To develop a pharmacokinetic model to describe the time course of the
relationship of vitamin D3 (cholecalciferol) supplementation that drives the levels of
25(OH)-D3 during the intensive induction chemotherapy. III. To determine the safety and
toxicity of vitamin D3 supplementation in AML patients undergoing intensive induction
chemotherapy. SECONDARY OBJECTIVES: I. To explore whether rapid (loading dose of vitamin
D3) normalization of 25(OH)-D3 levels will have an effect on the progression free and
overall survival. II. To explore whether a relationship exists between the pharmacokinetics
of the 25-hydroxy-vitamin D3 and white blood cell count. OUTLINE: Patients with
pretreatment 25(OH)-D3 levels 20-31.9 ng/mL (insufficient levels) are randomized to 1 of 2
treatment arms. ARM I: Patients receive a loading dose of cholecalciferol orally (PO) on
day 1. Patients then receive lower-dose cholecalciferol PO beginning on day 8. ARM II:
Patients receive a loading dose of cholecalciferol PO on day 1. Patients then receive
higher-dose cholecalciferol PO beginning on day 8. Patients with pretreatment 25(OH)-D3
levels < 20 ng/mL (deficient levels) receive a loading dose of cholecalciferol PO on days 1
and 8. Patients then receive lower-dose cholecalciferol PO beginning on day 15. For all
patients, treatment continues in the absence of disease progression or unacceptable
toxicity. After completion of study treatment, patients are followed up at 30 days.
Interventional
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Supportive Care
Changes in 25(OH)-D3 levels after supplementation
The within-group pre- and post-supplementation levels will be summarized separately and the within-subject change will also be computed. To assess within-arm treatment effects the sign test will be used.
From baseline to monthly for the first 3 months and then every 3 months
No
Meir Wetzler
Principal Investigator
Roswell Park Cancer Institute
United States: Food and Drug Administration
I 201311
NCT01521936
December 2011
Name | Location |
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Roswell Park Cancer Institute | Buffalo, New York 14263 |