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SummaryBackgroundOral fluoropyrimidines, such as S-1, have been shown to have a role in controlling disease progression in metastatic breast cancer. We examined adjuvant treatment with S-1 in patients with oestrogen receptor (ER)-positive and HER2-negative primary breast cancer. MethodsWe did a multicentre, open-label, randomised, controlled, phase 3 trial in 139 sites (137 hospitals and two clinics). Eligible patients were women aged 20–75 years with histologically diagnosed stage I to IIIB invasive breast cancer (intermediate to high risk of recurrence). Patients were temporarily registered at participating institutions and biopsy or surgical samples were collected and sent for central pathological assessment. Patients received 5 years of standard adjuvant endocrine therapy (selective oestrogen receptor modulators with or without ovarian suppression and aromatase inhibitors) with or without 1 year of S-1. Oral S-1 80–120 mg/day was administered twice a day for 14 days with 7 days off. Randomisation (1:1) using the minimisation method was done with six stratification factors (age, axillary lymph node metastasis at surgery or sentinel lymph node biopsy, preoperative or postoperative (neoadjuvant or adjuvant) chemotherapy, preoperative endocrine therapy, proportion of ER-positive cells, and study site). The primary endpoint was invasive disease-free survival, in the full analysis set (all randomly assigned patients, excluding those with significant protocol deviations). The safety analysis set consisted of all patients who received at least one dose of study treatment. Here, we report the results from the interim analysis at the data cutoff date Jan 31, 2019. This trial is registered with Japan Registry of Clinical Trials, jRCTs051180057, and the University hospital Medical Information Network, UMIN000003969. FindingsBetween Feb 1, 2012, and Feb 1, 2016, 1930 patients were enrolled in the full analysis set, 957 (50%) received endocrine therapy plus S-1 and 973 (50%) received endocrine therapy alone. Median follow-up was 52·2 months (IQR 42·1–58·9). 155 (16%) patients in the endocrine therapy alone group and in 101 (11%) patients in the endocrine therapy plus S-1 group had invasive disease-free survival events (hazard ratio 0·63, 95% CI 0·49–0·81, p=0·0003). As the primary endpoint was met at interim analysis, the trial was terminated early. The most common grade 3 or worse adverse events were decreased neutrophil count (72 [8%] of 954 patients in the endocrine therapy plus S-1 group vs seven [<1%] of 970 patients in the endocrine therapy alone group), diarrhoea (18 [2%] vs none), decreased white blood cells (15 [2%] vs two [<1%]), and fatigue (six [<1%] vs none). Serious adverse events were reported in nine (<1%) of 970 patients in the endocrine therapy alone group and 23 (2%) of 954 patients in the endocrine therapy plus S-1 group. There was one (<1%) possible treatment-related death in the endocrine therapy plus S-1 group due to suspected pulmonary artery thrombosis. InterpretationThese data suggest that this combination of S-1 with endocrine therapy could be a potential treatment option for this intermediate and high-risk group of patients with ER-positive, HER2-negative primary breast cancer. FundingPublic Health Research Foundation (Japan), Taiho Pharmaceutical.

Women between 59 and 80 years of age with a bone mineral density T score of –2.5 or less at the femoral neck or spine received the selective estrogen-receptor modulator lasofoxifene (either 0.25 or 0.5 mg daily) or placebo for 5 years. Lasofoxifene was associated with lower risks of fractures, estrogen-receptor–positive breast cancer, coronary heart disease, and stroke, with no increase in endometrial cancer, but there was an increase in venous thromboembolic events. In women with osteoporosis, lasofoxifene was associated with lower risks of fractures, estrogen-receptor–positive breast cancer, coronary heart disease, and stroke, with no increase in endometrial cancer, but there was an increase in venous thromboembolic events. Lasofoxifene is a nonsteroidal selective estrogen-receptor modulator that decreases bone resorption, bone loss, and low-density- lipoprotein (LDL) cholesterol in postmenopausal women. 1 We conducted the Postmenopausal Evaluation and Risk-Reduction with Lasofoxifene (PEARL) trial to determine whether lasofoxifene would reduce the risk of fractures, estrogen receptor (ER)–positive breast cancer, and cardiovascular disease among postmenopausal women with osteoporosis. Methods Study Design The PEARL trial was an international, randomized, placebo-controlled trial. Subjects received 1 g of calcium and 400 to 800 IU of vitamin D and placebo during a 6- to 8-week run-in period; women who received 75% or more of these pills were . . .

Background and hypothesis Several studies suggest that raloxifene, a selective estrogen receptor modulator, improves symptoms and cognition in post-menopausal women with Schizophrenia-Spectrum Disorders (SSD). We aimed to assess the effects of adjunctive raloxifene in women and men with SSD. Study design This parallel, randomized, double-blind, placebo-controlled trial included adult SSD patients across the Netherlands and Belgium. Participants were stratified by age, sex, and global functioning and randomly assigned 1:1 to 12-week add-on raloxifene or placebo. Primary outcomes were symptom severity at 6, 12, and 38 weeks and cognition at 12 and 38 weeks, as measured with the Positive and Negative Syndrome Scale and the Brief Assessment of Cognition in Schizophrenia, respectively. Intention-to-treat analyses were performed using linear mixed-effect models. Study results We assessed 261 patients for eligibility, of which 102 (28% female) were assigned to raloxifene (n = 52) or placebo (n = 48). Although we found no main effect of raloxifene, secondary sex-specific analysis showed that in women, raloxifene had beneficial effects on negative symptoms at week 6 (LSM −2.92; adjusted P = 0.020) and week 12 (LSM −3.12; adjusted P = 0.030), and on working memory at week 38 (LSM 0.73; adjusted P = 0.040), while having negative effects on working memory at week 38 in men (LSM −0.53; adjusted P = 0.026). The number of adverse events was similar between groups. Conclusions Our results do not support the use of raloxifene in patients with SSD in general, but suggest female-specific beneficial effects of raloxifene on negative symptoms and working memory. Our findings encourage further research on sex-specific pharmacotherapeutic treatment.

Early improvements in disease-free survival have been noted when an aromatase inhibitor is given either instead of or sequentially after tamoxifen in postmenopausal women with oestrogen-receptor-positive early breast cancer. However, little information exists on the long-term effects of aromatase inhibitors after treatment, and whether these early improvements lead to real gains in survival. 4724 postmenopausal patients with unilateral invasive, oestrogen-receptor-positive or oestrogen-receptor-unknown breast cancer who were disease-free on 2–3 years of tamoxifen, were randomly assigned to switch to exemestane (n=2352) or to continue tamoxifen (n=2372) for the remainder of a 5-year endocrine treatment period. The primary endpoint was disease-free survival; overall survival was a secondary endpoint. Efficacy analyses were intention-to-treat. This study is registered as an International Standard Randomised Controlled Trial, number ISRCTN11883920. After a median follow-up of 55·7 months (range 0–89·7), 809 events contributing to the analysis of disease-free survival had been reported (354 exemestane, 455 tamoxifen); unadjusted hazard ratio 0·76 (95% CI 0·66–0·88, p=0·0001) in favour of exemestane, absolute benefit 3·3% (95% CI 1·6–4·9) by end of treatment (ie, 2·5 years after randomisation). 222 deaths occurred in the exemestane group compared with 261 deaths in the tamoxifen group; unadjusted hazard ratio 0·85 (95% CI 0·71–1·02, p=0·08), 0·83 (0·69–1·00, p=0·05) when 122 patients with oestrogen-receptor-negative disease were excluded. Our results suggest that early improvements in disease-free survival noted in patients who switch to exemestane after 2–3 years on tamoxifen persist after treatment, and translate into a modest improvement in overall survival.

In this multicenter, placebo-controlled, randomized trial of postmenopausal women at high risk for a coronary event, raloxifene had no significant effect on the risk of primary coronary events, reduced the risk of invasive breast cancer and vertebral fractures, and increased the risk of fatal stroke and venous thromboembolism. A decision whether to use raloxifene for the prevention of breast cancer or vertebral fractures should be individualized, weighing benefits against potential risks. In postmenopausal women at high risk for a coronary event, raloxifene had no significant effect on the risk of primary coronary events, reduced the risk of invasive breast cancer and vertebral fractures, and increased the risk of fatal stroke and venous thromboembolism. Raloxifene is a nonsteroidal selective estrogen-receptor modulator (SERM) that binds to the estrogen receptor, leading to estrogen-agonist effects in some tissues and estrogen-antagonist effects in others. 1 Raloxifene therapy has been associated with improvement in the levels of serum lipoprotein cholesterol, 2 , 3 fibrinogen, 3 and homocysteine. 4 The favorable effect of raloxifene on markers of cardiovascular risk, coupled with evidence from observational studies that treatment with estrogen was associated with a reduced risk of coronary heart disease (CHD) in postmenopausal women, 5 , 6 led to the design of the Raloxifene Use for The Heart (RUTH) trial to determine the effect of raloxifene on clinical . . .

Background Toremifene (TOR) is a selective oestrogen receptor modulator (SERM) and has comparable efficacy to that of tamoxifen (TAM) in breast cancer patients. Herein, we compared the safety of TOR to that of TAM in the adjuvant treatment of premenopausal breast cancer. Methods This was a prospective randomized and open-label clinical study. Premenopausal patients with hormonal receptor (HR)-positive early breast cancer were randomly assigned (1:1) to receive TOR) or TAM treatment. The follow-up period was 1 year. The primary end point was the incidence of ovarian cysts, and secondary end points were the incidence of endometrial thickening, changes in female hormones, the incidence of fatty liver, changes in the modified Kupperman index (mKMI) and changes in quality of life. Results There were 92 patients in the final analysis. The incidences of ovarian cysts were 42.6% in the TOR group and 51.1% in the TAM group ( p  = 0.441). Forty-one patients (87.2%) in the TOR group and 36 patients (80.0%) in the TAM group experienced endometrial thickening ( p  = 0.348). The proportions of patients with fatty liver were 31.9% in the TOR group and 26.7% in the TAM group ( p  = 0.581). No significant differences in the mKMI or quality of life were observed between the two groups. Conclusions TOR and TAM have similar side effects on the female genital system and quality of life in premenopausal early breast cancer patients. Trial registration ClinicalTrials.gov NCT02344940. Registered 26 January 2015 (retrospectively registered).

Low testosterone (T) levels are often found in obese men with impaired glucose tolerance (IGT) and overt type 2 diabetes (T2DM); however, the mechanisms underlying this condition and its correct therapy are still under debate. To evaluate the effectiveness of clomiphene citrate (CC) in increasing endogenous T levels in obese men with low serum T and with IGT or T2DM treated with metformin (MET). Cross-over, randomized, double-blind, placebo-controlled study. 24 obese men, aged 47.3 ±. 6.3 (range 35-55 years), with low T level (≤3 ng/mL) and naïve diagnosis of IGT or T2DM were included. Subjects were randomized to CC 25 mg/day or placebo (Plac) with MET 2 g/day for 3 months. After a 6-week wash-out period, subjects were moved to the alternative arm for additional 3 months. Clinical evaluation and blood exams performed prior to and at the end of treatment. Of 24 randomized, 21 were evaluable, classified as IGT (n = 11) or T2DM (n = 10). Compared to baseline levels, T levels increased significantly after 3 months of CC treatment (3.03±0.80 to 5.99±1.67 ng/mL P<0.001) but not after the Plac treatment (2.87±0.78 to 3.09±0.84 ng/mL P<0.001 between the treatments). T changes were similar in IGT and T2DM subjects. Gonadotropins as well raised significantly after CC treatment (LH 3.83±1.45 to 8.53±6.40 mU/mL; FSH 4.84±1.67 to 10.15±5.08 mU/mL P<0.001 respectively), whereas no changes for LH (3.51±1.59 to 3.63±1.39 mU/mL) but a smooth increased for FSH (4.61±2.49 to 5.39±2.65 mU/mL; P = 0.004) were shown after Plac treatment (LH P = 0.001 and FSH P = 0.002 between treatments). Furthermore, fasting glucose (106.8±23.2 to 101.1±25.7 mg/dL; P = 0.004), insulin (19.3±12.1 to 15.6±10.1 μU/mL; P = 0.010) and HOMA-IR (4.94±2.89 to 3.69±2.12; P = 0.001) decreased significantly during the CC treatment period, whereas no significant changes were observed in any of these parameters in the Plac treatment. A low dose of CC therapy was able to significantly increase serum T levels in all participants with mild modifications of clinical and metabolic parameters. EudraCT 2011-000439-10.

Summary In this 2-year extension of a 3-year study, bazedoxifene showed sustained efficacy in preventing new vertebral fractures in postmenopausal women with osteoporosis and in preventing non-vertebral fractures in higher-risk women. Bazedoxifene significantly increased bone mineral density and reduced bone turnover versus placebo and was generally safe and well tolerated. Introduction This study evaluated the efficacy and safety of bazedoxifene for the treatment of postmenopausal osteoporosis over 5 years. Methods A total of 4,216 postmenopausal women with osteoporosis were enrolled in this 2-year extension of a 3-year, randomized, double-blind, placebo-controlled, phase 3 trial. In the core study ( N  = 7,492), subjects received bazedoxifene 20 or 40 mg/day, raloxifene 60 mg/day, or placebo. The raloxifene arm was discontinued after 3 years; subjects receiving bazedoxifene 40 mg were transitioned to bazedoxifene 20 mg after 4 years. Five-year findings are reported for bazedoxifene 20 and 40/20 mg and placebo. Endpoints included incidence of new vertebral fractures (primary) and non-vertebral fractures, and changes in bone mineral density (BMD) and bone turnover markers. Results At 5 years, the incidence of new vertebral fractures in the intent-to-treat population was significantly lower with bazedoxifene 20 mg (4.5%) and 40/20 mg (3.9%) versus placebo (6.8%; P  < 0.05), with relative risk reductions of 35% and 40%, respectively. Non-vertebral fracture incidence was similar among groups. In a subgroup of higher-risk women ( n  = 1,324; femoral neck T-score ≤−3.0 and/or ≥1 moderate or severe or ≥2 mild vertebral fracture[s]), bazedoxifene 20 mg reduced non-vertebral fracture risk versus placebo (37%; P  = 0.06); combined data for bazedoxifene 20 and 40/20 mg reached statistical significance (34% reduction; P  < 0.05). Bazedoxifene significantly increased BMD and reduced bone turnover versus placebo ( P  < 0.05) and was generally safe and well tolerated. Conclusions The findings support a sustained anti-fracture effect of bazedoxifene on new vertebral fractures in postmenopausal osteoporotic women and on non-vertebral fractures in the higher-risk subgroup of women.

Summary Findings from this 5-year phase 3 study of postmenopausal women with osteoporosis showed that bazedoxifene was associated with an overall favorable safety and tolerability profile, with no evidence of endometrial or breast stimulation. Overall, the results at 5 years were consistent with those seen at 3 years. Introduction We report safety and tolerability findings from a 5-year randomized, double-blind, phase 3 study of bazedoxifene in postmenopausal women with osteoporosis. Methods In the core study, healthy postmenopausal women with osteoporosis (N = 7,492; mean age, 66.4 years) were randomized to daily doses of bazedoxifene 20 or 40 mg, raloxifene 60 mg, or placebo for 3 years. During the 2-year study extension, the raloxifene 60-mg treatment arm was discontinued after the 3-year database was finalized, and subjects receiving bazedoxifene 40 mg were transitioned in a blinded manner to bazedoxifene 20 mg (bazedoxifene 40-/20-mg group) after 4 years. Safety and tolerability data are reported for subjects in the bazedoxifene 20- and 40-/20-mg and placebo groups; efficacy findings are reported elsewhere. Results A total of 3,146 subjects in the bazedoxifene 20- and 40-mg and placebo groups were enrolled in the extension study (years 4 and 5). Overall, the 5-year incidence of adverse events (AEs), serious AEs, and discontinuations due to AEs were similar among groups. The incidence of hot flushes and leg cramps was higher with bazedoxifene compared with placebo. Venous thromboembolic events, primarily deep vein thrombosis, were more frequently reported in the bazedoxifene groups compared with the placebo group. Reports of cardiac disorders and cerebrovascular events were few and evenly distributed among groups. Bazedoxifene showed a neutral effect on the breast and endometrium. Conclusion Bazedoxifene was associated with an overall favorable safety and tolerability profile in postmenopausal women with osteoporosis over 5 years of therapy, consistent with findings at 3 years.

Background We report the safety findings from a 3-year phase 3 study (NCT00205777) of bazedoxifene, a novel selective estrogen receptor modulator under development for the prevention and treatment of postmenopausal osteoporosis. Methods Healthy postmenopausal osteoporotic women (N = 7,492; mean age, 66.4 years) were randomized to daily doses of bazedoxifene 20 or 40 mg, raloxifene 60 mg, or placebo for 3 years. Safety and tolerability were assessed by adverse event (AE) reporting and routine physical, gynecologic, and breast examination. Results Overall, the incidence of AEs, serious AEs, and discontinuations due to AEs in the bazedoxifene groups was not different from that seen in the placebo group. The incidence of hot flushes and leg cramps was higher with bazedoxifene or raloxifene compared with placebo. The rates of cardiac disorders and cerebrovascular events were low and evenly distributed among groups. Venous thromboembolic events, primarily deep vein thromboses, were more frequently reported in the active treatment groups compared with the placebo group; rates were similar with bazedoxifene and raloxifene. Bazedoxifene showed a neutral effect on the breast and an excellent endometrial safety profile. The incidence of fibrocystic breast disease was lower with bazedoxifene 20 and 40 mg versus raloxifene or placebo. Reductions in total and low-density lipoprotein levels and increases in high-density lipoprotein levels were seen with bazedoxifene versus placebo; similar results were seen with raloxifene. Triglyceride levels were similar among groups. Conclusion Bazedoxifene showed a favorable safety and tolerability profile in women with postmenopausal osteoporosis. Trial Registration Trial registration number : NCT00205777; Trial registration date : September 16, 2005