Study of Vitamin D Supplementation Tailored to Vitamin D Deficiency in Breast Cancer Patients (VITACAL)
Breast Cancer
About this trial
This is an interventional treatment trial for Breast Cancer focused on measuring Breast cancer, Vitamin D supplementation, in neoadjuvant, adjuvant setting
Eligibility Criteria
Inclusion Criteria:
- Breast adenocarcinoma treated by neoadjuvant or adjuvant chemotherapy within 12 months prior to study enrollment
- WHO performance status 0-1
- Age ≥18 years old
- Affiliation to a social security regime or beneficiary of equivalent social protection
- Written informed consent provided before any study specific procedures
Complementary inclusion criterion for randomization
- Proved vitamin D deficiency as defined by serum vitamin D level lower than 30 ng/ml (75 nmol/L).
Exclusion Criteria:
- Metastatic disease
- History or presence of any other malignancy (except curatively treated nonmelanoma skin cancer or in situ cervix carcinoma) ………….
traités dans les 5 ans précédents.
- Contraindication to calcium or cholecalciferol
- Known severe hypersensitivity to vitamin D or to calcium supplementation or to one of the excipients.
- Disease and/or medical conditions accompanied by hypercalcaemia and/or hypercalciuria
- Calcium lithiasis and tissue calcification
- Hypervitaminosis D
Presence of significant comorbidities:
i) Uncontrolled endocrine disease ii) Known disorders of calcium phophorus laboratory testing iii) Proved osteopenia or osteoporosis requiring vitamin D and calcium supplements
- Concomitant treatment with other experimental products or another vitamin D calcium treatment
- Pregnancy, breastfeeding or of reproductive potential not using an effective contraceptive method
- Legal inability or restricted legal ability. Medical or psychological conditions not allowing proper study completion or informed consent signature
Sites / Locations
- CRLC Val d'Aurelle-Paul Lamarque
Arms of the Study
Arm 1
Arm 2
Active Comparator
Experimental
Conventional vitamin D and calcium supplementation
vitamin D supplementation tailored to vitamin D deficiency
Conventional vitamin D and calcium supplementation with 2 daily OROCAL VITAMINE D3® (500 mg calcium/200 IU cholecalciferol) tablets.
Conventional calcium supplementation with 2 daily OROCAL 500® (500 mg calcium) tablets to suck + vitamin D3 supplementation (UVÉDOSE®, cholecalciferol, 100 000 IU drinkable solution, 2 ml vial) whose schedule of administration depends on vitamin deficiency level: 100 000 IU of vitamin D3 at D1, D15, D28 and D43 if 25OHD level < 10 ng/mL 100 000 IU of vitamin D3 at D1, D15, D28 if 10 ng/mL ≤ 25OHD level < 20 ng/mL 100 000 IU of vitamin D3 at D1 if 20 ng/mL ≤ 25OHD level < 30 ng/mL