NCT05165069

Brief Summary

A multicenter, randomized, placebo-controlled, double-blind, phase III clinical trial will be conducted to explore the efficacy and safety of mecobalamin in the prevention of 2/3 HFS in patients with early breast cancer. 234 patients will be enrolled and will be randomized into mecobalamin group and placebo group at the ration of 1:1. The incidence of grade 2 / 3 HFS in the experimental group and the control group will be observed. This study is expected to provide evidence for clinical prevention of hand foot syndrome, improve clinical treatment guidelines for early breast cancer, and provide reference for other antitumor drugs for hand foot syndrome.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
234

participants targeted

Target at P25-P50 for phase_3

Timeline
57mo left

Started Jan 2022

Longer than P75 for phase_3

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress48%
Jan 2022Dec 2030

First Submitted

Initial submission to the registry

December 15, 2021

Completed
6 days until next milestone

First Posted

Study publicly available on registry

December 21, 2021

Completed
11 days until next milestone

Study Start

First participant enrolled

January 1, 2022

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 22, 2024

Completed
6.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2030

Expected
Last Updated

February 2, 2026

Status Verified

January 1, 2026

Enrollment Period

2.6 years

First QC Date

December 15, 2021

Last Update Submit

January 29, 2026

Conditions

Keywords

Hand-foot Syndrome, Mecobalamin, Capecitabine, Breast Cancer

Outcome Measures

Primary Outcomes (1)

  • The incidence of grade 2 / 3 hand foot syndrome

    The incidence equals the numbers of patients happens 2nd or 3rd level hand foot syndrome/the number of total patients in each group

    6 months

Secondary Outcomes (7)

  • The reduction or withdrawal rate of capecitabine

    6 months

  • Disease Free Survival

    5 years

  • Overall Survival

    5 year

  • The score of life quality questionnaire

    6 months

  • The score of life quality

    6 months

  • +2 more secondary outcomes

Study Arms (2)

Mecobalamin group

EXPERIMENTAL

Mecobalamin (0.5mg / time, 3 times / day) for 6 months

Drug: Mecobalamin 5 MG Disintegrating Oral Tablet

Placebo group

PLACEBO COMPARATOR

placebo (0.5mg / time, 3 times / day) for 6 months

Drug: placebo

Interventions

Mecobalamin 0.5mg / time, 3 times / day,was taken continuously for 6 months

Mecobalamin group

placebo 0.5mg / time, 3 times / day,was taken continuously for 6 months

Placebo group

Eligibility Criteria

Age18 Years - 70 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Female, aged 18 to 75
  • Her-2 negative patients with non metastatic breast cancer.
  • patients with early breast cancer who did not receive PCR after neoadjuvant chemotherapy or patients with lymph node metastasis after breast cancer surgery.
  • Prepare to receive postoperative adjuvant single drug capecitabine or capecitabine combined with endocrine therapy and / or radiotherapy
  • The Binbin dose is 1000mg / ㎡, bid (continuous oral administration for 14 days, stopping for 7 days, repeated every 21 days)
  • Eastern cancer cooperation group (ECoG) physical strength score 0-1;
  • During randomization, the toxicity related to previous treatment must be alleviated to NCI CTCAE (version 4.03) ≤ 1 degree (except hair loss or according to the research)
  • Other toxicity judged by the investigator that there is no risk to the safety of the patient);
  • Blood routine examination was basically normal within 4 weeks before enrollment: A. white blood cell count (WBC) ≥ 3.0 × 10 \^ 9 / L, B. medium
  • Sex granulocyte count (ANC) ≥ 1.5 × 10 \^ 9 / L, C. platelet count (PLT) ≥ 100 × 10\^9/L;
  • The liver and kidney function tests were basically normal within 4 weeks before enrollment (based on the normal values in the laboratories of each research center): a
  • Total bilirubin (TBIL) ≤ 1.5 × Upper limit of normal value (ULN), B. alanine aminotransferase and aspartate aminotransferase (ALT / AST)
  • ≤2.5 × ULN (patients with liver metastasis) ≤ 5 × ULN), C. serum creatinine ≤ 1.5 × ULN or creatinine clearance (CCR)
  • ≥60 ml/min;
  • Women of childbearing age must have a serum / urine pregnancy test 4 weeks before enrollment, and the result is negative, and are willing to participate in the study
  • +3 more criteria

You may not qualify if:

  • in the first 5 years of randomised allocation, there was a history of malignancy except for breast cancer, but the risk of metastasis or death was negligible.
  • Except for malignant tumors that can be cured after treatment (such as appropriately treated cervical carcinoma in situ, non melanoma skin cancer or stage I cancer)
  • Uterine cancer, thyroid cancer, etc.);
  • Any accompanying disease or condition that may interfere with the study, or any serious medical impairment that may affect the safety of the subject
  • (for example, uncontrollable heart disease, hypertension, active or uncontrollable infection, active hepatitis B virus infection);
  • there are diseases affecting skin: diabetes, dermatomyositis, sclerosing disease, lupus erythematosus and so on.
  • Known history of psychotropic substance abuse or drug abuse;
  • Pregnant or lactating patients;
  • Inability to swallow, intestinal obstruction or other factors affecting drug administration and absorption.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

Guangzhou, Guangdong, 510120, China

Location

Related Publications (1)

  • Xia Y, Zhu Y, Ling L, Xu F, Yang Y, Ye J, Tan W, Chen Z, Liu Q, Wei W, Zhang J, Zhang A, Zhang L, Song E, Gong C. Effect of methylcobalamin on capecitabine induced hand-foot syndrome in patients with HER2 negative early breast cancer: multicentre, double blind, randomised, placebo controlled, phase 3 trial. BMJ. 2025 Sep 11;390:e084290. doi: 10.1136/bmj-2025-084290.

MeSH Terms

Conditions

Hand-Foot SyndromeBreast Neoplasms

Interventions

mecobalamin

Condition Hierarchy (Ancestors)

Drug EruptionsDermatitisSkin DiseasesSkin and Connective Tissue DiseasesDrug HypersensitivityDrug-Related Side Effects and Adverse ReactionsChemically-Induced DisordersNeoplasms by SiteNeoplasmsBreast Diseases

Study Officials

  • Chang Gong

    Sun Yat-sen Memorial Hospital of Sun Yat-sen Univeristy

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

December 15, 2021

First Posted

December 21, 2021

Study Start

January 1, 2022

Primary Completion

August 22, 2024

Study Completion (Estimated)

December 31, 2030

Last Updated

February 2, 2026

Record last verified: 2026-01

Locations