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Bania A, Adamou A, Saloustros E. Racial and Ethnic Disparities in European Breast Cancer Clinical Trials. Cancers (Basel) 2024; 16:1726. [PMID: 38730678 PMCID: PMC11082959 DOI: 10.3390/cancers16091726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/26/2024] [Accepted: 04/27/2024] [Indexed: 05/13/2024] Open
Abstract
Breast cancer is the most prevalent female cancer worldwide with known correlations between the race and tumor characteristics of the patients and prognosis. International and US-based studies, however, have reported a disproportionate representation of Black and Hispanic patients in clinical trials. This is the first study assessing race and ethnicity reporting trends and inclusion in European breast cancer trials. The PubMed and ClinicalTrials.gov databases were systematically searched for trials on breast cancer treatment conducted exclusively in Europe between 2010 and 2022. Of the 97 identified trials, race was reported in 10.31%. Multinational participation, but not the study size or trial phase, was significantly associated with higher race reporting trends. These 10 trials featured a White-predominant population, with 1.08% Asian and 0.88% Black patients included. The acquisition of the race and ethnicity data of patients in European trials is lower compared to the U.S. or worldwide studies and does not permit extensive analysis of minority participation. In a limited analysis, the low rates of minority participation are concerning, based on population-based data on minorities in select European countries. These observations should encourage race reporting practices in European breast cancer trials and adequate minority participation to support the generalizability of the results of the studies and promote healthcare equity.
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Affiliation(s)
- Angelina Bania
- Faculty of Medicine, School of Health Sciences, University of Patras, 26504 Patras, Greece;
| | - Antonis Adamou
- Institute of Diagnostic and Interventional Neuroradiology, Hannover Medical School, 30625 Hannover, Germany;
| | - Emmanouil Saloustros
- Division of Oncology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41110 Larissa, Greece
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2
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Bekes I, Eichler M, Singer S, Friedl TWP, Harbeck N, Rack B, Forstbauer H, Dannecker C, Huober J, Kiechle M, Lato K, Janni W, Fink V. Impact of Granulocyte Colony-Stimulating Factor (G-CSF) and Epoetin (EPO) on Hematologic Toxicities and Quality of Life in Patients During Adjuvant Chemotherapy in Early Breast Cancer: Results From the Multi-Center Randomized ADEBAR Trial. Clin Breast Cancer 2020; 20:439-447. [PMID: 32800493 DOI: 10.1016/j.clbc.2020.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/26/2020] [Accepted: 03/23/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND Hematologic toxicities are one of the greatest challenges in adjuvant chemotherapy for breast cancer. This analysis of the ADEBAR trial aims to evaluate application and effect of granulocyte colony-stimulating factor (G-CSF) and epoetin alfa (EPO) on hematologic parameters and fatigue in patients with breast cancer during chemotherapy. PATIENTS AND METHODS In the ADEBAR trial, 1493 patients with node-positive primary breast cancer were randomized to either 6 × 5-fluorouracil, epirubicin, and cyclophosphamide (FEC120) or 4 × epirubicin and cyclophosphamide followed by 4 × docetaxel (EC-DOC). Co-medication with G-CSF or EPO was applied to treat chemotherapy-induced leukopenia or anemia. Fatigue was assessed at baseline and after one-half of the chemotherapy. RESULTS In total, 899 patients could be included in the analysis. There was no evidence for an association between leucocyte or hemoglobin levels and application of G-CSF and EPO in the preceding cycle, respectively. Hemoglobin levels (B = -0.41; P < .001) were affected by treatment regimen. Fatigue during chemotherapy was mostly affected by the level of fatigue before the start of chemotherapy (B = 0.41; P < .001). Patients with G-CSF application in the preceding cycle showed an increased fatigue score (B = 5.43; P = .02). CONCLUSION We showed that fatigue during adjuvant chemotherapy was mostly affected by the level of fatigue present before the start of chemotherapy. This result suggests that the level of fatigue before the start of treatment should be included as an important factor when deciding on type and toxicity of chemotherapy in early breast cancer.
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Affiliation(s)
- Inga Bekes
- Department of Gynecology and Obstetrics, University Hospital Ulm, Ulm, Germany.
| | - Martin Eichler
- Department of Internal Medicine I, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Susanne Singer
- Insitute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Centre Mainz, Mainz, Germany
| | - Thomas W P Friedl
- Department of Gynecology and Obstetrics, University Hospital Ulm, Ulm, Germany
| | - Nadia Harbeck
- Breast Cancer Center, Department of Obstetrics and Gynecology, University of Munich, Munich, Germany
| | - Brigitte Rack
- Department of Gynecology and Obstetrics, University Hospital Ulm, Ulm, Germany
| | - Helmut Forstbauer
- Hemato-Oncological Practice Dres Forstbauer and Ziske, Troisdorf, Germany
| | - Christian Dannecker
- Department of Gynecology and Obstetrics, University Hospital Augsburg, Augsburg, Germany
| | - Jens Huober
- Department of Gynecology and Obstetrics, University Hospital Ulm, Ulm, Germany
| | - Marion Kiechle
- Department of Obstetrics and Gynecology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Krisztian Lato
- Department of Gynecology and Obstetrics, University Hospital Ulm, Ulm, Germany
| | - Wolfgang Janni
- Department of Gynecology and Obstetrics, University Hospital Ulm, Ulm, Germany
| | - Visnja Fink
- Department of Gynecology and Obstetrics, University Hospital Ulm, Ulm, Germany
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Komorowski AS, MacKay HJ, Pezo RC. Quality of adverse event reporting in phase III randomized controlled trials of breast and colorectal cancer: A systematic review. Cancer Med 2020; 9:5035-5050. [PMID: 32452660 PMCID: PMC7367648 DOI: 10.1002/cam4.3095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 04/11/2020] [Accepted: 04/13/2020] [Indexed: 12/19/2022] Open
Abstract
Background Clinical trial reports often emphasize efficacy over harms, leading to misinterpretation of the risk‐to‐benefit ratio of new therapies. Clear and sufficiently detailed reporting of methods and results is especially important in the abstracts of trial reports, as readers often base their assessment of a trial on such information. In this study, we evaluated the quality of adverse event (AE) reporting and abstract quality in phase III randomized controlled trials (RCTs) of systemic therapies in breast and colorectal cancer. Methods Medline, EMBASE, Cochrane Database of RCTs, and Cochrane Database of Systematic Reviews were searched from November 2005 to September 2018. Phase III RCTs evaluating systemic therapies in breast or colorectal cancer were included. Each article was independently reviewed by two investigators using a standardized data extraction form based on guidelines developed by the Consolidated Standards of Reporting Trials (CONSORT) group. Descriptive statistics, bivariate analysis, and multivariable linear regression were used to analyze data. All statistical tests were two‐sided. Results Of 166 RCTs identified, 99.4% reported harms in the manuscript body, and 59.6% reported harms in the abstract. Reporting was restricted to severe harms in 15.6% of RCTs. Statistical comparison of AE rates went unreported in 59.0% of studies. Information regarding AEs leading to dose reductions, treatment discontinuations, or study withdrawals went unreported in 59.3%, 18.7%, and 86.8% of studies, respectively. Recently published RCTs (P = .009) and those sponsored at least partially by for‐profit companies (P = .003) had higher abstract quality scores. Conclusions Breast and colorectal cancer phase III RCTs inadequately report CONSORT‐compliant AE data. Improved guideline adherence and abstract reporting is required to properly weigh benefits and harms of new oncologic therapies. Systematic Review Registration Number CRD42019140673.
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Affiliation(s)
- Adam S Komorowski
- Division of Medical Microbiology, McMaster University, Hamilton, ON, Canada.,Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Helen J MacKay
- Division of Medical Oncology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.,Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Rossanna C Pezo
- Division of Medical Oncology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.,Department of Medicine, University of Toronto, Toronto, ON, Canada
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Biomimetic nanovesicles made from iPS cell-derived mesenchymal stem cells for targeted therapy of triple-negative breast cancer. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2020; 24:102146. [DOI: 10.1016/j.nano.2019.102146] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 11/05/2019] [Accepted: 12/11/2019] [Indexed: 12/28/2022]
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Willson ML, Burke L, Ferguson T, Ghersi D, Nowak AK, Wilcken N. Taxanes for adjuvant treatment of early breast cancer. Cochrane Database Syst Rev 2019; 9:CD004421. [PMID: 31476253 PMCID: PMC6718224 DOI: 10.1002/14651858.cd004421.pub3] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Adjuvant chemotherapy improves survival in premenopausal and postmenopausal women with early breast cancer. Taxanes are highly active chemotherapy agents used in metastatic breast cancer. Review authors examined their role in early breast cancer. This review is an update of a Cochrane Review first published in 2007. OBJECTIVES To assess the effects of taxane-containing adjuvant chemotherapy regimens for treatment of women with operable early breast cancer. SEARCH METHODS For this review update, we searched the Specialised Register of the Cochrane Breast Cancer Group, MEDLINE, Embase, CENTRAL (2018, Issue 6), the WHO International Clinical Trials Registry Platform (ICTRP), and ClinicalTrials.gov on 16 July 2018, using key words such as 'early breast cancer' and 'taxanes'. We screened reference lists of other related literature reviews and articles, contacted trial authors, and applied no language restrictions. SELECTION CRITERIA Randomised trials comparing taxane-containing regimens versus non-taxane-containing regimens in women with operable breast cancer were included. Studies of women receiving neoadjuvant chemotherapy were excluded. DATA COLLECTION AND ANALYSIS Two review authors independently extracted data and assessed risk of bias and quality of the evidence using the GRADE approach. Hazard ratios (HRs) were derived for time-to-event outcomes, and meta-analysis was performed using a fixed-effect model. The primary outcome measure was overall survival (OS); disease-free survival (DFS) was a secondary outcome measure. Toxicity was represented as odds ratios (ORs), and quality of life (QoL) data were extracted when present. MAIN RESULTS This review included 29 studies (27 full-text publications and 2 abstracts or online theses). The updated analysis included 41,911 randomised women; the original review included 21,191 women. Taxane-containing regimens improved OS (HR 0.87, 95% confidence interval (CI) 0.83 to 0.92; high-certainty evidence; 27 studies; 39,180 women; 6501 deaths) and DFS (HR, 0.88, 95% CI 0.85 to 0.92; high-certainty evidence; 29 studies; 41,909 women; 10,271 reported events) compared to chemotherapy without a taxane. There was moderate to substantial heterogeneity across studies for OS and DFS (respectively).When a taxane-containing regimen was compared with the same regimen without a taxane, the beneficial effects of taxanes persisted for OS (HR 0.84, 95% CI 0.77 to 0.92; P < 0.001; 7 studies; 10,842 women) and for DFS (HR 0.84, 95% CI 0.78 to 0.90; P < 0.001; 7 studies; 10,842 women). When a taxane-containing regimen was compared with the same regimen with another drug or drugs that were substituted for the taxane, a beneficial effect was observed for OS and DFS with the taxane-containing regimen (OS: HR 0.80, 95% CI 0.74 to 0.86; P < 0.001; 13 studies; 16,196 women; DFS: HR 0.83, 95% CI 0.78 to 0.88; P < 0.001; 14 studies; 16,823 women). Preliminary subgroup analysis by lymph node status showed a survival benefit with taxane-containing regimens in studies of women with lymph node-positive disease only (HR 0.83, 95% CI 0.78 to 0.88; P < 0.001; 17 studies; 22,055 women) but less benefit in studies of women both with and without lymph node metastases or with no lymph node metastases. Taxane-containing regimens also improved DFS in women with lymph node-positive disease (HR 0.84, 95% CI 0.80 to 0.88; P < 0.001; 17 studies; 22,055 women), although the benefit was marginal in studies of women both with and without lymph node-positive disease (HR 0.95, 95% CI 0.88 to 1.02; 9 studies; 12,998 women) and was not apparent in studies of women with lymph node-negative disease (HR 0.99, 95% CI 0.86 to 1.14; 3 studies; 6856 women).Taxanes probably result in a small increase in risk of febrile neutropenia (odds ratio (OR) 1.55, 95% CI 0.96 to 2.49; moderate-certainty evidence; 24 studies; 33,763 women) and likely lead to a large increase in grade 3/4 neuropathy (OR 6.89, 95% CI 3.23 to 14.71; P < 0.001; moderate-certainty evidence; 22 studies; 31,033 women). Taxanes probably cause little or no difference in cardiotoxicity compared to regimens without a taxane (OR 0.87, 95% CI 0.56 to 1.33; moderate-certainty evidence; 23 studies; 32,894 women). Seven studies reported low-quality evidence for QoL; overall, taxanes may make little or no difference in QoL compared to chemotherapy without a taxane during the follow-up period; however, the duration of follow-up differed across studies. Only one study, which was conducted in Europe, provided cost-effectiveness data. AUTHORS' CONCLUSIONS This review of studies supports the use of taxane-containing adjuvant chemotherapy regimens, with improvement in overall survival and disease-free survival for women with operable early breast cancer. This benefit persisted when analyses strictly compared a taxane-containing regimen versus the same regimen without a taxane or the same regimen with another drug that was substituted for the taxane. Preliminary evidence suggests that taxanes are more effective for women with lymph node-positive disease than for those with lymph node-negative disease. Considerable heterogeneity across studies probably reflects the varying efficacy of the chemotherapy backbones of the comparator regimens used in these studies. This review update reports results that are remarkably consistent with those of the original review, and it is highly unlikely that this review will be updated, as new trials are assessing treatments based on more detailed breast cancer biology.
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Affiliation(s)
- Melina L Willson
- NHMRC Clinical Trials Centre, The University of SydneySystematic Reviews and Health Technology AssessmentsLocked Bag 77SydneyNSWAustralia1450
| | - Lucinda Burke
- Chris O'Brien LifehouseDepartment of Radiation OncologySydneyAustralia
| | - Thomas Ferguson
- Royal Perth HospitalDepartment of Medical OncologyWellington StPerthWAAustralia6010
| | - Davina Ghersi
- National Health and Medical Research CouncilResearch Policy and Translation16 Marcus Clarke StreetCanberraACTAustralia2601
- The University of SydneySydney Medical SchoolSydneyAustralia
| | - Anna K Nowak
- Sir Charles Gairdiner Hospital and University of Western AustraliaDepartment of Medical OncologyB Block, Hospital AvenueNedlandsPerthWAAustralia6099
| | - Nicholas Wilcken
- The University of SydneySydney Medical SchoolSydneyAustralia
- Crown Princess Mary Cancer CentreMedical OncologyWestmeadNSWAustralia2145
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Moreno-Vega A, Vega-Riveroll L, Ayala T, Peralta G, Torres-Martel JM, Rojas J, Mondragón P, Domínguez A, De Obaldía R, Avecilla-Guerrero C, Anguiano B, Delgado-González E, Zambrano-Estrada X, Cuenca-Micó O, De La Puente Flores O, Varela-Echavarría A, Aceves C. Adjuvant Effect of Molecular Iodine in Conventional Chemotherapy for Breast Cancer. Randomized Pilot Study. Nutrients 2019; 11:nu11071623. [PMID: 31319484 PMCID: PMC6682905 DOI: 10.3390/nu11071623] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 07/08/2019] [Accepted: 07/09/2019] [Indexed: 12/17/2022] Open
Abstract
This study analyzes an oral supplement of molecular iodine (I2), alone and in combination with the neoadjuvant therapy 5-fluorouracil/epirubicin/cyclophosphamide or taxotere/epirubicin (FEC/TE) in women with Early (stage II) and Advanced (stage III) breast cancer. In the Early group, 30 women were treated with I2 (5 mg/day) or placebo (colored water) for 7–35 days before surgery. For the Advanced group, 30 patients received I2 or placebo, along with FEC/TE treatment. After surgery, all patients received FEC/TE + I2 for 170 days. I2 supplementation showed a significant attenuation of the side effects and an absence of tumor chemoresistance. The control, I2, FEC/TE, and FEC/TE + I2 groups exhibited response rates of 0, 33%, 73%, and 100%, respectively, and a pathologic complete response of 18%, and 36% in the last two groups. Five-year disease-free survival rate was significantly higher in patients treated with the I2 supplement before and after surgery compared to those receiving the supplement only after surgery (82% versus 46%). I2-treated tumors exhibit less invasive potential, and significant increases in apoptosis, estrogen receptor expression, and immune cell infiltration. Transcriptomic analysis indicated activation of the antitumoral immune response. The results led us to register a phase III clinical trial to analyze chemotherapy + I2 treatment for advanced breast cancer.
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Affiliation(s)
- Aura Moreno-Vega
- Instituto de Neurobiología UNAM-Juriquilla, Querétaro 76230, Mexico
| | | | - Tonatiuh Ayala
- Instituto de Neurobiología UNAM-Juriquilla, Querétaro 76230, Mexico
| | | | | | - Joel Rojas
- Hospital General Regional #1 IMSS, Querétaro 76000, Mexico
| | - Perla Mondragón
- Instituto de Neurobiología UNAM-Juriquilla, Querétaro 76230, Mexico
| | | | | | | | - Brenda Anguiano
- Instituto de Neurobiología UNAM-Juriquilla, Querétaro 76230, Mexico
| | | | | | - Olga Cuenca-Micó
- Instituto de Neurobiología UNAM-Juriquilla, Querétaro 76230, Mexico
| | | | | | - Carmen Aceves
- Instituto de Neurobiología UNAM-Juriquilla, Querétaro 76230, Mexico.
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Herr D, Wischnewsky M, Joukhadar R, Chow O, Janni W, Leinert E, Fink V, Stüber T, Curtaz C, Kreienberg R, Blettner M, Wollschläger D, Wöckel A. Does chemotherapy improve survival in patients with nodal positive luminal A breast cancer? A retrospective Multicenter Study. PLoS One 2019; 14:e0218434. [PMID: 31283775 PMCID: PMC6613686 DOI: 10.1371/journal.pone.0218434] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 06/02/2019] [Indexed: 12/15/2022] Open
Abstract
Background In this study based on the BRENDA data, we investigated the impact of endocrine ± chemotherapy for luminal A, nodal positive breast cancer on recurrence free (RFS) and overall survival (OS). In addition, we analysed if tumor size of luminal A breast cancer influences survival in patients with the same number of positive lymph nodes. Methods In this retrospective multi-centre cohort study data of 1376 nodal-positive patients with primary diagnosis of luminal A breast cancer during 2001–2008 were analysed. The results were stratified by therapy and adjusted by age, tumor size and number of affected lymph nodes. Results In our study population, patients had a good to excellent prognosis (5-year RFS: 91% and tumorspecific 5-year OS 96.5%). There was no significant difference in RFS stratified by patients with only endocrine therapy and with endocrine plus chemo-therapy. Patients with 1–3 affected lymph nodes had no significant differences in OS treated only with endocrine therapy or with endocrine plus chemotherapy, independent of tumor size. Patients with large tumors and more than 3 affected lymph nodes had a significant worse survival as compared to the small tumors. However, despite the worse prognosis of those, adjuvant chemotherapy failed in order to improve RFS. Conclusions According to our data, nodal positive patients with luminal A breast cancer have, if any, a limited benefit of adjuvant chemotherapy. Tumor size and nodal status seem to be of prognostic value in terms of survival, however both tumor size as well as nodal status were not predictive for a benefit of adjuvant chemotherapy.
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Affiliation(s)
- Daniel Herr
- Department of Obstetrics and Gynaecology, Würzburg University Medical Centre, Würzburg, Germany
- * E-mail:
| | - Manfred Wischnewsky
- Faculty of Mathematics and Computer Science, University of Bremen, Bremen, Germany
| | - Ralf Joukhadar
- Department of Obstetrics and Gynaecology, Würzburg University Medical Centre, Würzburg, Germany
| | - Olivia Chow
- Department of Obstetrics and Gynaecology, Würzburg University Medical Centre, Würzburg, Germany
| | - Wolfgang Janni
- Department of Obstetrics and Gynaecology, Ulm University Medical Centre, Ulm, Germany
| | - Elena Leinert
- Department of Obstetrics and Gynaecology, Ulm University Medical Centre, Ulm, Germany
| | - Visnja Fink
- Department of Obstetrics and Gynaecology, Ulm University Medical Centre, Ulm, Germany
| | - Tanja Stüber
- Department of Obstetrics and Gynaecology, Würzburg University Medical Centre, Würzburg, Germany
| | - Carolin Curtaz
- Department of Obstetrics and Gynaecology, Würzburg University Medical Centre, Würzburg, Germany
| | - Rolf Kreienberg
- Department of Obstetrics and Gynaecology, Ulm University Medical Centre, Ulm, Germany
| | - Maria Blettner
- Institute of Medical Biostatistics, Epidemiology and Informatics, University Medical Center, Mainz, Germany
| | - Daniel Wollschläger
- Institute of Medical Biostatistics, Epidemiology and Informatics, University Medical Center, Mainz, Germany
| | - Achim Wöckel
- Department of Obstetrics and Gynaecology, Würzburg University Medical Centre, Würzburg, Germany
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Goldvaser H, Ribnikar D, Majeed H, Ocaña A, Amir E. Absolute benefit from adjuvant chemotherapy in contemporary clinical trials: A systemic review and meta-analysis. Cancer Treat Rev 2018; 71:68-75. [PMID: 30366201 DOI: 10.1016/j.ctrv.2018.10.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 10/13/2018] [Accepted: 10/15/2018] [Indexed: 12/25/2022]
Abstract
BACKGROUND Many adjuvant breast cancer trials have observed smaller than anticipated differences between experimental and control groups. Accurate estimation of the absolute benefits of treatment is essential for the planning of clinical trials. METHODS We searched PubMed to identify contemporary randomized trials comparing different adjuvant chemotherapy regimens in breast cancer. The absolute difference in 5-year disease-free survival (DFS) and overall-survival between experimental and control groups were extracted, weighted by individual study sample size and pooled. Analyses were performed for estrogen receptor (ER) negative and ER-positive disease. Meta-regression explored the influence of patients and tumor characteristics and median follow-up on the benefit from treatment. RESULTS Analysis included 19 studies comprising 41,564 patients. Studies comparing chemotherapy regimens of different generations showed the largest difference in 5-year DFS (+7.4% for 3rd vs. 2nd generation and +5.9% for 2nd vs. 1st generation for ER-negative disease, and +2.3% for 3rd vs. 2nd generation and +1.8% for 2nd vs. 1st generation for ER-positive disease). Studies comparing chemotherapy regimens from the same generation showed smaller differences in DFS in both subgroups. Meta-regression showed that larger tumors and nodal involvement had significant greater magnitude of effect on 5-year DFS for ER-negative, but not ER-positive disease. Age and menopausal status had no effect in either subgroup. CONCLUSIONS Absolute differences between adjuvant chemotherapy regimens of the same generation are small even in ER-negative disease. Enrichment of trials for patients with poor clinical features results in larger magnitudes of benefit from treatment at 5 years in ER-negative, but not ER-positive disease.
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Affiliation(s)
- Hadar Goldvaser
- Division of Medical Oncology, University of Toronto and Princess Margaret Cancer Centre, 610 University Ave, Toronto, ON M5G 2M9, Canada; Sackler Faculty of Medicine, Tel Aviv University, POB 39040, Tel Aviv 6997801, Israel
| | - Domen Ribnikar
- Division of Medical Oncology, University of Toronto and Princess Margaret Cancer Centre, 610 University Ave, Toronto, ON M5G 2M9, Canada.
| | - Habeeb Majeed
- Division of Medical Oncology, University of Toronto and Princess Margaret Cancer Centre, 610 University Ave, Toronto, ON M5G 2M9, Canada.
| | - Alberto Ocaña
- Translational Research Unit, Centro Regional de Investigaciones Biomedicas Universidad de Castilla La Mancha, Albacete University Hospital, calle Francisco Javier de Moya, 02006 Albacete, Spain
| | - Eitan Amir
- Division of Medical Oncology, University of Toronto and Princess Margaret Cancer Centre, 610 University Ave, Toronto, ON M5G 2M9, Canada.
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9
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Mutschler NS, Scholz C, Friedl TW, Zwingers T, Fasching PA, Beckmann MW, Fehm T, Mohrmann S, Salmen J, Ziegler C, Jäger B, Widschwendter P, de Gregorio N, Schochter F, Mahner S, Harbeck N, Weissenbacher T, Jückstock J, Janni W, Rack B. Prognostic Impact of Weight Change During Adjuvant Chemotherapy in Patients With High-Risk Early Breast Cancer: Results From the ADEBAR Study. Clin Breast Cancer 2018; 18:175-183. [DOI: 10.1016/j.clbc.2018.01.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 12/23/2017] [Accepted: 01/22/2018] [Indexed: 10/18/2022]
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Li L, An X. A novel combined method of thin-film evaporation and a supercritical carbon dioxide technique to prepare a fluorescent siRNA-liposome. RSC Adv 2016. [DOI: 10.1039/c6ra19751e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel folate-DTX/siRNA-liposome (FDSL) was prepared by a combined method of thin-film evaporation and supercritical carbon dioxide technique.
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Affiliation(s)
- Lielie Li
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Xueqin An
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai
- China
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