Breast Neoplasms | Bone Loss Treatment From Adjuvant Zoledronate Efficacy

Breast Neoplasms research study

What is the primary objective of this study?

The main purpose of this study is to observe and assess the impact of adjuvant zoledronate on bone density in breast cancer patients. The second purposes: - The efficacy of adjuvant zoledronate - The safety of adjuvant zoledronate - The bone loss of breast cancer patients in Guangdong - The correlation between bone loss of breast cancer patients and treatment of disease in Guangdong

Who is eligible to participate?

Inclusion Criteria: - Female, age > 18. - Postoperative breast cancer patients who have finished adjuvant chemotherapy or unwilling to receive chemotherapy. - T score < -2.0, or -2.0 < T score <-1.0 with any 2 of the following risk factors: T score < -1.5, age > 65, BMI < 20kg/m^2, family history of hip fractures, age > 50 with brittle fracture history, oral steroid therapy > 6 months, receiving aromatase therapy. - ECOG(Eastern Cooperative Oncology Group) physical state score:0-2. - Breast cancer stage I-III confirmed by histological or cytological examination. - Patients received radical surgery with estimated survival time > 12 months. - Laboratory tests should be performed 1 week before enrollment and the results should meet the following criteria: neutrophil count ≥ 1.5×10^9/L, platelet count ≥ 100×10^9/L, hemoglobin ≥ 80g/L, serum bilirubin ≤ 1.0×ULN, AST and ALT ≤ 1.5×ULN, Serum creatinine ≤ 1.0×ULN. - Patients who never received intravenous bisphosphonate within 12 months before enrollment and did not receive oral bisphosphonate within 3 weeks before enrollment. - Informed consents should be signed by the participants or their guardians. All the participants should be aware of the purpose and procedure of this study and willing to participate in this study. - Contraception required for those reproductive-aged women. Exclusion Criteria: - Pregnant or lactating women. - Patients who have not signed informed consent. - Patients received medical treatment which can affect bone metabolism (such as calcitonin, mithramycin or gallium nitrate) within 2 weeks before enrollment. - Bone metabolic diseases such as Paget's disease, epiphyseal dysplasia and primary or secondary hyperthyroidism diagnosed within 12 months before enrollment. - Liver function impairment which is defined as 2.5-fold or more increase in ALT or AST levels compared with the upper limit of reference range. - Refuse appropriate contraception (appropriate contraceptive options include female sterilisation, intrauterine device, oral contraceptives and barrier contraception). - Active dental diseases including dental infection, mandibular pain and maxillary or mandibular trauma. Patients with mandibular osteonecrosis diagnosed currently or previously, exposed bone or slow healing after oral surgery. Patients who will receive dental or maxillofacial surgery (such as dental extraction and dental implant) in the first 6 weeks after enrollment. - Patients with dysgnosia or communication disorder who can't well understand our study, cooperate with our staff or operate glucose monitor correctly. - Combined with major organ dysfunction or other severe diseases such as severe coronary disease, cardiovascular disease, myocardial infarction occurred within 12 months before enrollment, severe neurological or psychiatric diseases, severe infection or active disseminated intravascular coagulation. - Alcoholics or drug addicts.

Which medical condition, disease, disorder, syndrome, illness, or injury is researched?

Breast Neoplasms

Bone Loss

Study Interventions

Interventions can include giving participants drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available or noninvasive approaches such as surveys, education, and interviews.

Drug:Zoledronate4mg, IV (in the vein) every 6 months. Number of Cycles: up to the researcher or until unacceptable toxicity develops.

Study Arms

Research studies and clinical trials typically have two or more research arms. An arm is a group of people who receive the same treatment in the study.


Study Status

Unknown status

Start Date: July 2011

Completed Date: June 2017

Phase: N/A

Type: Interventional


Primary Outcome: Change from Baseline in Bone Mineral Density

Secondary Outcome: Bone metastasis rate

Study sponsors, principal investigator, and references

Principal Investigator: Shenming Wang, MD, PhD

Lead Sponsor: First Affiliated Hospital, Sun Yat-Sen University


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