Tamoxifen Treatment After Adjuvant Chemotherapy Has Opposite Effects on Bone Mineral Density in Premenopausal Patients Depending on Menstrual Status

2006 ◽  
Vol 24 (4) ◽  
pp. 675-680 ◽  
Author(s):  
Leena Vehmanen ◽  
Inkeri Elomaa ◽  
Carl Blomqvist ◽  
Tiina Saarto

Purpose Adjuvant chemotherapy followed by tamoxifen is a standard treatment option for women with intermediate or high-risk hormone receptor–positive breast cancer. Premenopausal women treated with chemotherapy often develop early menopause and thus, enter a period of accelerated bone loss. We conducted a prospective study of the effect of sequential adjuvant therapy with chemotherapy followed by tamoxifen on bone mineral density (BMD) in premenopausal patients. Patients and Methods One hundred eleven premenopausal women with early breast cancer were treated with adjuvant chemotherapy. Patients with hormone receptor–positive tumors went on to tamoxifen 6 months after the beginning of the chemotherapy (tamoxifen group), while those with hormone receptor–negative tumors received no further therapy (control group). The effect of tamoxifen and menstrual status on BMD was studied. Results Tamoxifen treatment and menopausal status correlated significantly with the changes in lumbar spine BMD (P < .0001). A significant bone loss was noted in those tamoxifen-treated patients who continued to menstruate after chemotherapy. At 3 years of follow-up, menstruating patients on tamoxifen had lost −4.6% of their baseline BMD values, while a modest gain of +0.6% was noted in the control group. In contrast, bone loss was reduced among tamoxifen-treated women as compared with controls in patients who developed chemotherapy-induced early menopause. In amenorrheic patients, the lumbar spine BMD values decreased −6.8% in tamoxifen users and −9.5% in the controls, respectively. Conclusion We conclude that tamoxifen usage was associated with bone loss in patients who continued to menstruate after adjuvant chemotherapy. On the contrary, tamoxifen decreased bone loss in those women who developed chemotherapy-induced amenorrhea.

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 562-562
Author(s):  
D. L. Hershman ◽  
D. McMahon ◽  
K. D. Crew ◽  
T. Shao ◽  
S. Cremers ◽  
...  

562 Background: Adjuvant chemotherapy is associated with a significant reduction in bone mineral density (BMD) in premenopausal women with breast cancer (BC). We previously showed that this loss of BMD can be prevented with zoledronic acid (ZA) every 3 months for a year. Since bone loss in women with osteoporosis is prevented with annual ZA, we examined whether protection from bone loss by ZA in women with BC persists following discontinuation of ZA. Methods: A randomized, double-blind, multicenter, phase III trial comparing ZA (4 mg every 3 months) versus placebo for 1 year in premenopausal women with BC undergoing adjuvant chemotherapy was conducted. Patients had serial BMD measurement at 0 (after surgery and before chemotherapy), 6, 12 and 24 months. Demographic, clinical, and tumor characteristics were collected. Serum was stored at -70°C and analyzed in batches. The secondary outcome of percent change in BMD at 24 months, one year following the last ZA/placebo, is presented. Intention-to-treat analyses with linear mixed models were performed using SAS version 9. Results: Of 101 patients randomized, 85 completed 12 month, and 62 completed 24 month evaluations; mean age 41 (SD 5.2). Demographic and baseline characteristics were similar between treatment groups. By 24 months, 38 (61%) had not regained their menses; 22 patients were on tamoxifen, 25 were on an aromatase inhibitor. Chemotherapy without ZA was associated with a significant decline from baseline in lumbar spine (LS) BMD after both 12 (-5.4%) and 24 (-6.3%) months. Similarly total hip (TH) and femoral neck (FN) BMD declined by 2.6% and 2.4% by 24 months, respectively. In contrast, BMD remained stable in ZA-treated patients (p < 0.0001 vs placebo). Patients who received ZA had stable BMD at 24 months (LS -0.58%, TH 0.83%, FN 0.04%). Analysis of bone turnover markers is ongoing. Conclusions: Premenopausal women receiving adjuvant chemotherapy for BC had significant bone loss in the first year that persisted in the second year. ZA every 3 months for a year effectively prevented bone loss during the first year and 1 year after completion of ZA treatment. One year of ZA maintains BMD in premenopausal BC patients for an additional year after discontinuation of ZA. [Table: see text]


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e12500-e12500
Author(s):  
Chihwan Cha ◽  
Soo Jin Lee ◽  
Hanpyo Hong ◽  
Yun Young Choi ◽  
Min Sung Chung

e12500 Background: It is well known that adjuvant tamoxifen treatment for breast cancer in postmenopausal women decreases bone loss. However, the adverse effect of adjuvant tamoxifen therapy for bone mineral density (BMD) in premenopausal breast cancer patients remains uncertain. This meta-analysis aimed to assess the effects of adjuvant tamoxifen therapy on BMD changes in premenopausal women with primary breast cancer. Methods: Through April 2020, studies reporting BMD changes of lumbar spine or hip in premenopausal women with primary breast cancer treated with adjuvant tamoxifen were collected from EMBASE and PubMed. The pooled analysis was performed using random effects model of the standardized mean difference (SMD) of BMD in patients. Results: A total of 1,432 premenopausal patients from eight studies were included in the pooled analysis. After 3 years of median follow up, adjuvant tamoxifen therapy decreased BMD by as much as SMD of -0.79 [95% confidence interval (CI); -1.25 to -0.33, P < 0.01] at lumbar spines and -0.38 at hip (95%CI; -0.88 to 0.12, P > 0.05). Compared with patients received tamoxifen alone, patients who received combination therapy with chemotherapy or ovarian function suppression (OFS) showed decreased bone loss at lumbar spine (SMD -1.17 with 95%CI -1.59 to -0.75, -0.43 with 95%CI -2.26 to 1.40, and -0.75 with 95%CI -1.38 to -0.13, respectively). Conclusions: Our meta-analysis revealed that premenopausal women who received adjuvant tamoxifen treatment showed significant bone loss over a period of time, especially at lumbar spine. However, tamoxifen attenuated bone loss in those who received tamoxifen after chemotherapy or along with OFS.[Table: see text]


2008 ◽  
Vol 26 (29) ◽  
pp. 4739-4745 ◽  
Author(s):  
Dawn L. Hershman ◽  
Donald J. McMahon ◽  
Katherine D. Crew ◽  
Serge Cremers ◽  
Dinaz Irani ◽  
...  

Purpose Adjuvant chemotherapy for breast cancer (BC) may be associated with increased rates of bone loss and decreased bone mineral density (BMD) and may lead to premature osteoporosis and increased fracture risk. We examined whether zoledronic acid (ZA) prevents bone loss in premenopausal women receiving chemotherapy for early-stage BC. Patients and Methods This study is a randomized, double-blind, multicenter, phase III trial comparing ZA (4 mg intravenously every 3 months) versus placebo for 1 year. Premenopausal women underwent serial BMD measurements before initiating chemotherapy and at 6 and 12 months. The primary outcome was percent change in lumbar spine (LS) BMD at 6 months. Secondary outcomes were percent change at any BMD site and markers of bone turnover at 12 months. Linear mixed model analysis for repeated measures was performed. Results Of 101 women who were randomly assigned and completed baseline evaluation, 96 completed the 6-month evaluation, and 85 completed the 12-month evaluation. Baseline characteristics were comparable between the groups. Mean age was 42 years. Placebo was associated with significant decline in LS BMD at both 6 (2.4%) and 12 (4.1%) months. Similarly, total hip BMD declined by 0.8% at 6 months and 2.6% at 12 months. In contrast, BMD remained stable in ZA patients (P < .0001 compared with placebo). Conclusion Premenopausal women receiving chemotherapy for BC sustained significant bone loss at the LS and hip, whereas BMD remained stable in women who received ZA. Administration of ZA during the first year of chemotherapy is an effective and well-tolerated strategy for preventing bone loss.


Breast Cancer ◽  
2018 ◽  
Vol 25 (3) ◽  
pp. 343-349 ◽  
Author(s):  
Yukinori Ozaki ◽  
Yuko Tanabe ◽  
Nobuko Tamura ◽  
Takuya Ogura ◽  
Chihiro Kondoh ◽  
...  

Abstract Introduction Although tamoxifen (TAM) plus ovarian function suppression (OFS) is considered as a standard adjuvant treatment for premenopausal women with hormone receptor-positive breast cancer, the optimal duration of OFS has not yet been established. This retrospective study was designed to assess the duration of OFS and the impact of the duration of OFS on the DFS in these patients. Methods We retrospectively reviewed the data of premenopausal patients with breast cancer who received TAM + OFS (goserelin or leuprorelin) as adjuvant therapy between February 2004 and June 2015. The primary analysis was a comparison of the disease-free survival (DFS) between patients who received OFS for 3 years or less (OFS ≤ 3 years group) and those who received OFS for longer than 3 years (OFS > 3 years group). Results We analyzed the data of 215 premenopausal patients diagnosed as having hormone receptor-positive breast cancer. A propensity score-matched model showed the absence of any significant difference in the DFS between the OFS ≤ 3 years group and OFS > 3 years group (6-year DFS rate, 93.2 vs. 94.0%; log-rank test p = 0.767). Conclusions Our data showed that among premenopausal women with hormone receptor-positive breast cancer who received TAM + OFS as adjuvant endocrine therapy, there was no significant difference in the DFS between the OFS ≤ 3-year group and OFS > 3-year group. A randomized trial is needed to establish the optimal duration of OFS for these patients.


2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 552-552
Author(s):  
Katsuhiko Nakatsukasa ◽  
Takayuki Matsuda ◽  
Tetsuya Taguchi

552 Background: Adjuvant aromatase inhibitor (AI) therapy is well established in postmenopausal women with hormone receptor-positive breast cancer, but such therapy is associated with bone loss and increased fracture risk. Denosumab, a fully human monoclonal antibody against receptor of nuclear-κB ligand, was previously proven to protect against AI-induced bone loss. In Japan, however, the efficacy of denosumab in the treatment of AI-associated bone loss has not been proven in a prospective study. Methods: This non-randomized prospective study was conducted at four institutions in Japan. we prospectively evaluated the bone mineral density (BMD) of the lumbar spine and bilateral femoral neck in hormone-receptor positive clinical stageⅠ–ⅢA, postoperative postmenopausal breast cancer patients who were scheduled for treatment with AI as adjuvant endocrine therapy or during AI adjuvant therapy. They received supplemental calcium, vitamin D and subcutaneous denosumab 60mg (n=103) every six months. At enrollment, all patients were required to have evidence of low bone mass, excluding osteoporosis. The primary endpoint was percentage change in lumbar spine BMD from baseline to month 12. The secondary endpoint was percentage change in bilateral femoral neck BMD from baseline to month 12. This is the first trial where the right and left femoral neck BMD are measured separately. Results: We enrolled 103 patients between November, 2014 to October, 2016. At 12 months, lumber spine BMD increased by 4.7 %. The patients who were administered prior AI therapy (n=60) had a 4.8 % increase, and the patients without prior AI therapy (n=40) had a 4.6 % increase. At 12 months, the right and left femoral neck BMD increased by 2.9 % and 2.0 %, respectively. Hypocalcemia ≥ grade2, osteonecrosis of the jaw (ONJ) and non-traumatic clinical fracture were absent in this study. Conclusions: Twice-yearly treatment with denosumab was associated with consistently greater gains in BMD among Japanese women receiving adjuvant AI therapy, regardless of whether prior AI therapy was administered. Clinical trial information: UMIN000013863.


Author(s):  
Simon Peter Gampenrieder ◽  
Gabriel Rinnerthaler ◽  
Richard Greil

SummaryThe three top abstracts at the 2020 virtual San Antonio Breast Cancer Symposium regarding hormone-receptor-positive early breast cancer, from our point of view, were the long-awaited results from PenelopeB and RxPONDER as well as the data from the ADAPT trial of the West German Study Group. PenelopeB failed to show any benefit by adjuvant palbociclib when added to standard endocrine therapy in patients without pathologic complete response after neoadjuvant chemotherapy. RxPONDER demonstrated that postmenopausal patients with early hormone receptor positive (HR+)/human epidermal growth factor receptor 2 negative (HER2−) breast cancer, 1–3 positive lymph nodes and an Oncotype DX Recurrence Score of less than 26 can safely be treated with endocrine therapy alone. In contrast, in premenopausal women with positive nodes, adjuvant chemotherapy plays still a role even in case of low genomic risk. Whether the benefit by chemotherapy is mainly an indirect endocrine effect and if ovarian function suppression would be similarly effective, is still a matter of debate. The HR+/HER2− part of the ADAPT umbrella trial investigated the role of a Ki-67 response to a short endocrine therapy before surgery in addition to Oncotype DX—performed on the pretreatment biopsy—to identify low-risk patients who can safely forgo adjuvant chemotherapy irrespective of menopausal status.


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