New treatment modalities and pharmacologic refinements for metatstatic breast cancer

In this thesis the results of clinical studies with new chemotherapeutic agents and pharmacokinetic studies on taxanes in breast cancer patients are reported. In metastatic breast cancer, endocrine and cytotoxic treatment often result in objective tumor responses, associated with relevant relief of symptoms. At present, however, metastatic breast cancer is still considered to be incurable even despite agressive multi-modality treatment options. Chemotherapy for metastatic breast cancer should therefore aim at a maximum of palliation and prolongation of life, at the cost of a minimal of toxicity

Use of neoadjuvant chemotherapy in locally advanced breast cancer in the Netherlands

Use of neoadjuvant chemotherapy in locally advanced breast cancer in the Netherlands P.E.R. Spronk1, A.C.M. Van Bommel1, S. Siesling2,3, M.J.T. Baas- Vrancken Peeters4, C.H. Smorenburg5. 1Leiden University Medical Centre, Surgery, Leiden, Netherlands; 2Comprehensive Cancer Centre the Netherlands IKNL, Epidemiology, Utrecht, Netherlands; 3University of Twente, MIRA Biomedical science and Technical Medicine, Twente, Netherlands; 4Netherlands Cancer Institute/Antoni van Leeuwenhoek, Surgery, Amsterdam, Netherlands; 5Netherlands Cancer Institute/Antoni van Leeuwenhoek, Medical Oncology, Amsterdam, Netherlands Background: Neoadjuvant chemotherapy (NAC) is the treatment of choice for patients with locally advanced breast cancer (LABC). The aim of this study is to examine the use of NAC for LABC in all Dutch hospitals participating in breast cancer care and to assess what patient, tumour and hospital characteristics influence its use. Material and Methods: Data were derived from the national multidisciplinary NABON Breast Cancer Audit (NBCA), regarding all women aged >18 years and newly diagnosed with LABC from January 2011 to September 2013. Multivariable logistic regression was used to assess the association between the use of NAC and patient, tumour and hospital related factors. Results: Of 1419 woman diagnosed with LABC, 70% were treated with NAC. This percentage varied from 12.5% to 90% between hospitals and did not increase over time. Factors associated with the use of NAC included young age, large tumour size, more advanced nodal disease and triple negative or hormone-receptor negative tumours. Also patients treated in hospitals with a multidisciplinary preoperative work-up and participation in neoadjuvant studies were more likely to receive NAC. However, considerable variation between hospitals remained after casemix correction. Table 1. Multivariable odds ratios (ORs) for receipt of NAC among 1419 stage III patients 2011 through 2013 OR 95% CI P-value Age 0.000 5 cm 5.68 2.34−13.79 Clinical nodal status 0.000 cNx/N0 ref. cN1 1.32 0.86−2.04 cN2 2.93 1.18−7.29 cN3 10.28 4.18−25.25 Receptor status 0.000 Triple negative 2.35 1.40−3.93 HR−, Her2+ 3.37 1.67−6.78 HR+, Her2+ 0.91 0.51−1.60 HR+, Her2− ref. Type of surgery 0.026 Breast conservation therapy 2.05 1.09−3.84 Mastectomy ref. Multidisciplinary team 0.021 Yes 1.98 1.11−3.53 No ref. Type of hospital 0.569 General 1.20 0.73−1.98 Top clinical ref. Academic 1.50 0.64−3.47 Hospital surgical volume 0.729 200 1.27 0.70−2.31 Study participation 0.005 Yes 1.80 1.20−2.70 No ref. Conclusions: There is considerable variation in the use of NAC for LABC in the Netherlands. Although various patient, tumor and institutional factors are associated with the use of NAC in LABC, these can only explain part of the observed variation in treatment patterns between hospitals

Efficacy of anastrozole after tamoxifen in early breast cancer patients with chemotherapy-induced ovarian function failure

The DATA study (NCT00301457) compared 6 and 3 years of anastrozole in postmenopausal women with hormone receptorpositive early breast cancer after 2–3 years of tamoxifen. Patients with chemotherapy-induced ovarian function failure (CIOFF) were also eligible, but could be at risk of ovarian function recovery (OFR). The current analysis compared the survival of women with CIOFF with definitely postmenopausal women and examined the influence of OFR on survival. Therefore, w

Cardiotoxicity during long-term trastuzumab use in patients with HER2-positive metastatic breast cancer: who needs cardiac monitoring?

Purpose: Patients with HER2-positive metastatic breast cancer (MBC) usually receive many years of trastuzumab treatment. It is unknown whether these patients require continuous left ventricular ejection fraction (LVEF) monitoring. We studied a real-world cohort to identify risk factors for cardiotoxicity to select patients in whom LVEF monitoring could be omitted. Methods: We included patients with HER2-positive MBC who received > 1 cycle of trastuzumab-based therapy in eight Dutch hospitals between 2000 and 2014. Cardiotoxicity was defined as LVEF 10%-points and was categorized into non-severe cardiotoxicity (LVEF 40–50%) and severe cardiotoxicity (LVEF 60% and no cardiotoxicity during prior neoadjuvant/adjuvant treatment, the cumulative incidence of severe cardiotoxicity was 3.1% after 4 years of trastuzumab. Despite continuing trastuzumab, LVEF decline was reversible in 56% of patients with non-severe cardiotoxicity and in 33% with severe cardiotoxicity. Conclusions: Serial cardiac monitoring can be safely omitted in non-smoking patients with baseline LVEF > 60% and without cardiotoxicity during prior neoadjuvant/adjuvant treatment

Factors Influencing the Effectiveness of Scalp Cooling in the Prevention of Chemotherapy-Induced Alopecia

Experimentele farmacotherapi

Optimal Pre-infusion Cooling Time in Patients Treated With Chemotherapy and Scalp Cooling

Clinical Oncolog

Efficacy of anastrozole after tamoxifen in early breast cancer patients with chemotherapy-induced ovarian function failure

Contains fulltext : 203571.pdf (publisher's version ) (Open Access

Evaluation of a Trichometer to Quantify the Prevention of Hair Loss by Scalp Cooling During Chemotherapy

Experimentele farmacotherapi

Patient-reported health problems and healthcare use after treatment for early-stage breast cancer.

Background: A clear picture of treatment-related health problems following breast cancer treatment is useful in anticipating the informational and other needs of patients during follow-up. This study aimed to identify treatment-related health problems in breast cancer patients up to five years after diagnosis. Secondly, the use of care associated with these health problems was identified. Methods: 876 surgically-treated female patients diagnosed between 2012 and 2016 with early-stage breast cancer were asked to complete an online survey about their current health problems and use of care. Multivariate logistic regression analyses were applied to determine the effect of patient and treatment characteristics on health problems. Results: 404 patients responded (46%). The median age was 62.0 years (SD:10.9). Apart from breast surgery, patients had been treated with radiotherapy (72%), chemotherapy (49%), anti-hormonal therapy (57%), and axillary dissection (21%). Ninety-three percent experienced one or more health problems. Over 50% of respondents experienced fatigue, psychological problems, and health problems regarding the breast, and/or musculoskeletal, central nervous, and reproductive system. Treatment with chemotherapy was significantly associated (p < 0.05) with an increased risk of health problems, respectively fatigue (OR:2.00), respiratory (OR:1.81), gastrointestinal (OR:1.87), central nervous (OR:3.40), and skin problems (OR:2.62). Use of healthcare for one or more health problems was reported by 64% of respondents. Discussion: Almost all patients experienced health problems up to five years after breast cancer diagnosis, with a range of complaints that were consistently present over time. Factors associated with the development of health problems are useful for better informing patients beforehand and targeting follow-up care