Effect of Vitamin D Supplementation on Chemotherapy Side Effects After Adjuvant Chemotherapy for Breast Cancer
1 other identifier
interventional
100
1 country
2
Brief Summary
This randomized controlled Phase III trial was designed to evaluate the effect of vitamin D supplementation (VD) on chemotherapy side effects following adjuvant chemotherapy in breast cancer
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Dec 2024
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 13, 2024
CompletedFirst Posted
Study publicly available on registry
October 15, 2024
CompletedStudy Start
First participant enrolled
December 1, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 31, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
April 30, 2026
CompletedJanuary 17, 2025
October 1, 2024
1.2 years
October 13, 2024
January 16, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Incidence and proportion of treatment-related adverse events
The occurrence of side effects between the two groups from the first to the last chemotherapy
4-6months
Secondary Outcomes (3)
Evaluation of side effects associated with adjuvant therapy (CTCAE v5.0)
From the start of adjuvant therapy to 21 days after the last adjuvant therapy cycle.
Assessment of side effects associated with adjuvant therapy (EQ-5D Health Status Scale)
From the start of adjuvant therapy to 21 days after the last adjuvant therapy cycle.
Assessment of side effects associated with adjuvant therapy (Abbreviated Fatigue Scale)
From the start of adjuvant therapy to 21 days after the last adjuvant therapy cycle.
Study Arms (2)
Chemotherapy + vitamin D2
EXPERIMENTALBefore the start of treatment and every 3 weeks thereafter, participants will receive a 10-milligram dose of vitamin D2 injection until adjuvant chemotherapy is completed. They will receive a standard adjuvant chemotherapy regimen, which includes 10 mg of vitamin D2 injections per cycle during treatment. The dosage of adjuvant chemotherapy drugs can be customized according to the clinical judgment of the doctor.
chemotherapy
OTHERParticipants will receive a standard adjuvant chemotherapy regimen for each adjuvant chemotherapy cycle. The dosage of adjuvant chemotherapy drugs can be customized according to the clinical judgment of the doctor.
Interventions
Before the start of treatment and every 3 weeks thereafter, participants will receive a 10 mg dose of vitamin D2 injection until adjuvant chemotherapy is completed. They will receive a standard adjuvant chemotherapy regimen, which includes 10 mg of vitamin D2 injections per cycle during treatment. The dosage of adjuvant chemotherapy drugs can be customized according to the clinical judgment of the doctor.
Participants will receive a standard adjuvant chemotherapy treatment regimen for each adjuvant chemotherapy cycle. The dosage of adjuvant chemotherapy drugs can be customized according to the clinical judgment of the doctor.
Eligibility Criteria
You may qualify if:
- Age between 18 and 80 years, with an Eastern Cooperative Oncology Group (ECOG) performance status of 0-2.
- Primary diagnosis of breast cancer confirmed by preoperative pathological examination.
- Serum 25(OH)D levels less than 20 ng/ml (50 nmol/L).
- Patients who have not previously received chemotherapy and who plan to undergo at least 4 cycles of
- Patients with adjuvant chemotherapy or combined targeted therapy.
- Life expectancy of at least 6 months.
- No other uncontrolled benign diseases at the time of recruitment.
- All patients must have complete clinical medical records.
- Willingness to voluntarily sign an informed consent form.
You may not qualify if:
- History of invasive breast cancer.
- Prior systemic treatment for the treatment or prevention of breast cancer.
- Known allergic reactions to vitamin D or calcium compounds.
- Comorbidities that may affect vitamin D or calcium balance or bone health.
- Vitamin D or calcium supplementation in the past 3 months.
- Presence of other tumors.
- Pregnant or lactating women.
- Individuals who do not wish to participate in the study.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Jiuda Zhaolead
Study Sites (2)
Qinghai University Affiliated Hospital
Xining, Qinghai, 810000, China
Qinghai University Affiliated Hospital
Xining, Qinghai, 810000, China
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Breast Disease Diagnosis and Treatment Center
Study Record Dates
First Submitted
October 13, 2024
First Posted
October 15, 2024
Study Start
December 1, 2024
Primary Completion
January 31, 2026
Study Completion
April 30, 2026
Last Updated
January 17, 2025
Record last verified: 2024-10