NCT06642441

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

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Dec 2024

Geographic Reach
1 country

2 active sites

Status
recruiting

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

Completed
2 days until next milestone

First Posted

Study publicly available on registry

October 15, 2024

Completed
2 months until next milestone

Study Start

First participant enrolled

December 1, 2024

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2026

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2026

Completed
Last Updated

January 17, 2025

Status Verified

October 1, 2024

Enrollment Period

1.2 years

First QC Date

October 13, 2024

Last Update Submit

January 16, 2025

Conditions

Keywords

Vitamin DBreast CancerAdverse Reaction

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

EXPERIMENTAL

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

chemotherapy

OTHER

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

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.

Chemotherapy + vitamin D2

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.

chemotherapy

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

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

Study Sites (2)

Qinghai University Affiliated Hospital

Xining, Qinghai, 810000, China

NOT YET RECRUITING

Qinghai University Affiliated Hospital

Xining, Qinghai, 810000, China

RECRUITING

MeSH Terms

Conditions

Breast Neoplasms

Interventions

Drug TherapyErgocalciferols

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

TherapeuticsCholestenesCholestanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSterolsVitamin DSecosteroidsMembrane LipidsLipids

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

Locations