Effects of Vitamin D in Patients With Breast Cancer (OTT 12-06)
A Phase 2 Randomized, Double-blind, Window of Opportunity Trial Evaluating Clinical and Correlative Effects of Vitamin D in Patients With Breast Cancer. The ICARUS Trial
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
Ontario
-
Ottawa, Ontario, Canada
- The Ottawa Hospital Woman's Breast Health Centre
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-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Histologically confirmed female primary breast cancer patients whose surgery is planned for the next 2-8 weeks without neoadjuvant therapy as assessed by multidisciplinary team
- Age ≥18 years
- Clinically palpable tumour(s) (greater than or equal to 2 cm)
- Normal serum and urine calcium and serum PTH values at baseline (as defined by Ottawa Hospital)
- Written informed consent for study
Exclusion Criteria:
- Patients with recurrent or metastatic breast cancer
- History of neoadjuvant hormonal therapy, chemotherapy, or radiation therapy in the last 6 months for their breast cancer or any other cancer treatment
- ECOG performance Status > 2
- Hypercalciuria on initial baseline urine, defined as Ca/Creatinine Ratio> 1.0
- Current or previous history of urolithiasis or hyperparathyroidism
- Abnormal hepatic function according to Ottawa Hospital norms (Total Bilirubin >2x upper limit of normal, ALT/AST >3x upper limit of normal)and/or abnormal renal function (Creatinine > 150 µmol/L)
- History of granulomatous disease such as tuberculosis or sarcoidosis.
- Intake of Vitamin D (cholecalciferol) supplement ≥ 2000 IU/day within the last 2 months
- Inability to comply with a study protocol in the opinion of the investigator (such as abuse of alcohol, drugs or psychotic states).
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Vitamin D3
Vitamin D3 40,000 iu per day by mouth
|
Participants will take 4 capsules of Vitamin D which equals 40,000 IU by mouth daily during the wait time between diagnosis and surgery.
Other Names:
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Placebo Comparator: Placebo
Placebo taken daily by mouth
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Participants will take 4 capsules of placebo by mouth daily during the wait time between diagnosis and surgery.
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Pre and post vitamin D administration Ki67 levels and Caspase 3 levels (as assessed according to the apoptosis assay)
Time Frame: baseline and 2-8 weeks from baseline
|
Participants will have Ki67 and Caspase 3 levels performed on the tissue that was used to initially diagnose breast cancer.
Those levels will then be compared to the tissue acquired at the time of surgery which will occur 2-8 weeks from diagnosis.
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baseline and 2-8 weeks from baseline
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Serum levels of 25-0HD and in vivo breast (cancer and non cancer) tissue levels of 1,25(OH)
Time Frame: Baseline and 2-8 weeks from baseline at the time of surgery
|
Participant will have Serum levels of 25-0HD and in vivo breast cancer tissue levels of 1,25(OH) taken at baseline and surgery
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Baseline and 2-8 weeks from baseline at the time of surgery
|
Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Investigators
Investigators
- Principal Investigator: Angel Arnaout, Dr., The Ottawa Hospital
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- 20120362-2OH
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