An interventional study of Chemotherapy + vitamin D2 and Chemotherapy in Vitamin D, Chemotherapy and Breast Cancer, sponsored by Jiuda Zhao. Recruiting at 2 sites in China. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2025-01-17.
Sponsored by Jiuda Zhao · Not applicable, Interventional, and Treatment
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
This is a parallel group, open-label randomized controlled trial to investigate the occurrence of side effects of vitamin D supplementation (VD) in adjuvant chemotherapy in patients with breast cancer. Both groups will receive standard adjuvant chemotherapy on day 1 and each subsequent cycle. In addition, vitamin D2 will be given randomly to both groups. Blood samples and imaging results were collected and analyzed before initiation of adjuvant chemotherapy and after every two cycles. The primary outcome to be documented was associated grade III or higher adverse events during adjuvant chemotherapy. Primary and secondary study findings and adverse events will be thoroughly evaluated.
Exclusion Criteria:
Before 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.
Drug: Chemotherapy + vitamin D2
Participants 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.
Drug: Chemotherapy
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.
Incidence and proportion of treatment-related adverse events
The occurrence of side effects between the two groups from the first to the last chemotherapy
Time frame: 4-6months
Evaluation of side effects associated with adjuvant therapy (CTCAE v5.0)
Side effects of adjuvant therapy were evaluated according to CTCAE v5.0 criteria. CTCAE v5.0 was used to evaluate the degree of adverse events after patients received adjuvant chemotherapy. The level of adverse events was divided into 1-5 grades. The higher the level, the more serious the degree of adverse reactions after patients received chemotherapy, and active intervention was required.
Time frame: 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)
Side effects of adjuvant therapy will be assessed according to the EQ-5D Health Status Scale criteria. The EQ-5D health status scale was used to evaluate the health status of patients after chemotherapy. The scale score was between 0 and 1, and the higher the scale score was, the better the health status of patients was reflected
Time frame: 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)
The side effects of adjuvant therapy will be assessed according to the Concise Fatigue Scale (BFI) criteria, with a score between 0 and 10, with a lower score indicating less fatigue
Time frame: From the start of adjuvant therapy to 21 days after the last adjuvant therapy cycle.
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Jiuda Zhao