% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Kuznia:182558, author = {S. Kuznia$^*$ and D. Czock and A. Kopp-Schneider$^*$ and R. Caspari and H. Fischer and D. C. Laetsch and M. Slavic$^*$ and H. Brenner$^*$ and B. Schöttker$^*$}, title = {{E}fficacy and {S}afety of a {P}ersonalized {V}itamin {D}3 {L}oading {D}ose {F}ollowed by {D}aily 2000 {IU} in {C}olorectal {C}ancer {P}atients with {V}itamin {D} {I}nsufficiency: {I}nterim {A}nalysis of a {R}andomized {C}ontrolled {T}rial.}, journal = {Nutrients}, volume = {14}, number = {21}, issn = {2072-6643}, address = {Basel}, publisher = {MDPI}, reportid = {DKFZ-2022-02739}, pages = {4546}, year = {2022}, note = {#EA:C070#LA:C070#LA:C120#}, abstract = {A personalized vitamin D3 loading dose has not yet been tested in cancer patients. This interim analysis of the randomized, placebo-controlled VICTORIA trial analyzed the first recruited 74 German adults with nonmetastatic colorectal cancer, a tumor surgery within the past year, and 25-hydroxyvitamin D levels (25(OH)D) < 50 nmol/L. Study participants received a loading dose tailored for a baseline 25(OH)D level and BMI in the first 11 days, followed by a maintenance dose of 2000 IU of vitamin D3 daily until end of trial week 12. The mean 25(OH)D levels were 27.6, 31.0, and 34.1 nmol/L in the placebo group and 25.9, 63.1, and 75.5 nmol/L in the verum group during screening, visit 1 (end of loading dose), and visit 2 (end of maintenance dose), respectively. The prevalence of 25(OH)D) ≥ 50 nmol/L at visits 1 and 2 was $3.5\%$ and $17.4\%$ in the placebo group and $80.0\%$ and $100\%$ in the verum group. No events of 25(OH)D > 150 nmol/L or hypercalcemia were observed. Hypercalciuria events at visit 1 (n = 5 in verum and n = 1 in the placebo group; p = 0.209) receded after discontinuation of the study medication. The personalized loading dose effectively and safely increased the 25(OH)D levels, and 2000 IU of vitamin D3 daily sustained the achieved levels.}, keywords = {bolus (Other) / calcium (Other) / colorectal cancer (Other) / efficacy (Other) / loading dose (Other) / personalized medicine (Other) / randomized controlled trial (Other) / safety (Other) / treatment regimen (Other) / vitamin D (Other)}, cin = {C070 / C120 / HD01 / C060}, ddc = {610}, cid = {I:(DE-He78)C070-20160331 / I:(DE-He78)C120-20160331 / I:(DE-He78)HD01-20160331 / I:(DE-He78)C060-20160331}, pnm = {313 - Krebsrisikofaktoren und Prävention (POF4-313)}, pid = {G:(DE-HGF)POF4-313}, typ = {PUB:(DE-HGF)16}, pubmed = {pmid:36364809}, doi = {10.3390/nu14214546}, url = {https://inrepo02.dkfz.de/record/182558}, }