Efficacy of Tamoxifen Versus Toremifene in CYP2D6 IM/PM of Premenopausal Patients With ER-positive Early Breast Cancer
Multicenter Prospective, Parallel-controlled Phase III Clinical Study on Comparing Efficacy of Tamoxifen Versus Toremifene in CYP2D6 Intermediate/Poor Metabolizers of Premenopausal Patients With ER-positive Early Breast Cancer
1 other identifier
interventional
844
1 country
21
Brief Summary
This clinical trial is designed to be a multi-center prospective, parallel-controlled Phase III clinical study. In this study, the efficacy of tamoxifen versus toremifene shall be compared in CYP2D6 intermediate/poor metabolizers of premenopausal patients with estrogen receptor-positive early breast cancer.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Nov 2017
Longer than P75 for phase_3
21 active sites
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 Start
First participant enrolled
November 1, 2017
CompletedFirst Submitted
Initial submission to the registry
November 20, 2017
CompletedFirst Posted
Study publicly available on registry
November 22, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2025
CompletedNovember 22, 2017
November 1, 2017
8.1 years
November 20, 2017
November 20, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Disease-Free Survival
The time period from randomization to local or distant invasive cancer recurrence, contralateral invasive breast cancer, second (non-breast) primary invasive cancer and all-cause death
Within 5 years after randomization
Secondary Outcomes (3)
Overall Survival
Within 5 years after randomization
Adverse drug reaction
Within 5 years after administration
Serum drug concentration
Within 6 months after administration
Study Arms (2)
Tamoxifen treatment group
ACTIVE COMPARATORPatients in this group will receive tamoxifen treatment.
Toremifene treatment group
ACTIVE COMPARATORPatients in this group will receive Toremifene treatment.
Interventions
Patients will be given 10mg Tamoxifen twice a day.
Patients will be given 60mg Toremifene once a day.
Eligibility Criteria
You may qualify if:
- Premenopausal women aged 18-50 years;
- ECOG PS: 0-2 points;
- Invasive breast cancer confirmed by histology with ER ≥ 10% (all test results should be reviewed and confirmed by Department of Pathology of the participant institution);
- Participants have completed the standard local radical treatment (modified or conservative radical mastectomy) with or without neo-adjuvant/adjuvant chemotherapy or radiotherapy;
- Participants must be able to understand this study and are willing to participate, agree to genotype screening and sign informed consent form with good compliance and cooperation in follow-ups;
- Polymorphism analysis showed that patients are CYP2D6 \* 4, \* 5, \* 10, \* 14, \* 17, \* 41 allele carriers;
- Hemoglobin ≥ 90g/L, neutrophils ≥ 1.5 × 109/L, platelets ≥ 75 × 109/L, AST and ALT ≤ 2.5 times the upper limit of normal (ULN), serum creatinine and urea nitrogen ≤ ULN.
You may not qualify if:
- Patients have previously received neoadjuvant endocrine therapy or have started adjuvant endocrine therapy;
- There are any comorbidities that may increase the level of sex hormones: such as pituitary adenomas, ovarian tumors, thymic carcinomas, etc.;
- There are any comorbidities that may reduce the level of sex hormones such as hyperthyroidism, hypothyroidism, cirrhosis, severe malnutrition, Turner syndrome, lack of sex hormone synthetase, intracranial tumors, pituitary atrophy etc.;
- Patients have undergone or planned to conduct ovariectomy or ovarian function inhibition;
- Patients needs to take other medicines which can influence the activity of CYP2D6 (such as fluoxetine, paroxetine, quinidine, bupropion), CYP3A4 (such as erythromycin, acetylspiramycin, ritonavir, ketoconazole, nicardipine);
- Patients have been treated with other trial medications in the past 2 weeks;
- Pregnant or lactating women (women of childbearing age must have a negative pregnancy test within 14 days of the first dosing, and if pregnant, Patients are required for ultrasound examination to exclude pregnancy);
- Women of childbearing age who are not willing to take effective contraception during treatment;
- There are serious non-malignant tumor comorbidities that may affect long-term follow-up;
- Patients have family history of endometrial, ovarian or other gynecologic malignancies;
- Transvaginal ultrasound suggested more serious ovarian abnormalities or endometrial thickening;
- Patients have had thrombotic events such as cerebrovascular accident (including transient ischemic attack), deep venous thrombosis, and pulmonary embolism within 6 months prior to study initiation;
- Serious liver insufficiency with Child-Pugh C grade;
- Serious cardiac insufficiency with New York Heart Association (NYHA) grade ≥III;
- Patients are known severely allergic to study drug;
- +2 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Chinese Anti-Cancer Associationlead
- Fudan Universitycollaborator
- Henan Cancer Hospitalcollaborator
- The First Hospital of Jilin Universitycollaborator
- Southwest Hospital, Chinacollaborator
- First Hospital of China Medical Universitycollaborator
- Guangdong Provincial People's Hospitalcollaborator
- Harbin Medical Universitycollaborator
- First Affiliated Hospital of Chongqing Medical Universitycollaborator
- Sun Yat-Sen Memorial Hospital of Sun Yat-Sen Universitycollaborator
- Jiangsu Provincial People's Hospitalcollaborator
- Cancer Institute and Hospital, Chinese Academy of Medical Sciencescollaborator
- Zhejiang Cancer Hospitalcollaborator
- Tianjin Medical University Cancer Institute and Hospitalcollaborator
- Union hospital of Fujian Medical Universitycollaborator
- Hebei Tumor Hospitalcollaborator
- Hunan Cancer Hospitalcollaborator
- Affiliated Hospital of Qinghai Universitycollaborator
- Wuhan TongJi Hospitalcollaborator
- Hainan People's Hospitalcollaborator
- The Third Affiliated Hospital of Kunming Medical College.collaborator
- The Third Affiliated Hospital of Nanchang Universitycollaborator
Study Sites (21)
Cancer Institute and Hospital, Chinese Academy of Medical Sciences
Beijing, Beijing Municipality, China
First Affiliated Hospital of Chongqing Medical University
Chongqing, Chongqing Municipality, China
Southwest Hospital, China
Chongqing, Chongqing Municipality, China
Union hospital of Fujian Medical University
Fuzhou, Fujian, China
Guangdong Provincial People's Hospital
Guangzhou, Guangdong, China
Sun Yat-sen Memorial Hospital
Guangzhou, Guangdong, China
Hainan People's Hospital
Haikou, Hainan, China
Hebei Tumor Hospital
Shijiazhuang, Hebei, China
Harbin Medical University Cancer Hospital
Harbin, Heilongjiang, China
Henan Cancer Hospital
Zhengzhou, Henan, China
Wuhan Tongji Hospital
Wuhan, Hubei, China
Hunan Cancer Hospital
Changsha, Hunan, China
Jiangsu Provincial People's Hospital
Nanjing, Jiangsu, China
The Third Affiliated Hospital of Nanchang University
Nanchang, Jiangxi, China
First Hospital of Jilin University
Changchun, Jilin, China
First Hospital of China Medical University
Shenyang, Lining, China
First Affiliated Hospital of Qingdao University
Qingdao, Shandong, China
Fudan University Shanghai Cancer Center
Shanghai, Shanghai Municipality, China
Tianjin Medical University Cancer Institute and Hospital
Tianjin, Tianjin Municipality, China
The Third Affiliated Hospital of Kunming Medical College
Kunming, Yunnan, China
Zhejiang Cancer Hospital
Hangzhou, Zhejiang, China
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Zhimin Shao, Master
Fudan University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 20, 2017
First Posted
November 22, 2017
Study Start
November 1, 2017
Primary Completion
December 1, 2025
Study Completion
December 1, 2025
Last Updated
November 22, 2017
Record last verified: 2017-11
Data Sharing
- IPD Sharing
- Will not share