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Schlichting M, Sanz H, Williams P, Ballarini N, Rippin G, Pawar V. Investigating the trends in patient-reported outcomes pre-treatment and implications to efficacy analyses: A post-hoc analysis of a cancer clinical trial. Contemp Clin Trials Commun 2022; 30:101021. [DOI: 10.1016/j.conctc.2022.101021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 09/01/2022] [Accepted: 10/26/2022] [Indexed: 11/07/2022] Open
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Bergmann F, Wulkersdorfer B, Oesterreicher Z, Bauer M, Al Jalali V, Nussbaumer-Pröll A, Wölfl-Duchek M, Jorda A, Lackner E, Reiter B, Stimpfl T, Ballarini N, König F, Zeitlinger M. Comparison of pharmacokinetics and stability of generics of cefepime, linezolid and piperacillin/tazobactam with their respective originator drugs: an intravenous bioequivalence study in healthy volunteers. J Antimicrob Chemother 2022; 77:3086-3092. [PMID: 36039038 DOI: 10.1093/jac/dkac285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/28/2022] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES The efficacy and quality of generic antibacterial drug formulations are often questioned by both healthcare specialists and patients. Therefore, the present study investigated the interchangeability of generic drugs with their originators by comparing bioequivalence parameters and stability data of generic cefepime, linezolid and piperacillin/tazobactam with their respective originator drugs. METHODS In this open-label, randomized, crossover bioequivalence study, three groups of 12 healthy volunteers each received a single intravenous infusion of either 2 g of cefepime or 4.5 g of piperacillin/tazobactam and two generic formulations, or 600 mg of linezolid and one generic formulation. Plasma sampling was performed, with a 5 day washout period between study days. Stability was tested by storing reconstituted generic and originator products according to their own storage specifications and those of the comparator products. All concentrations were measured by LC-MS. RESULTS Similar ratios of generic/originator (90% CI) Cmax were observed for Cefepime-MIP/Maxipime [93.7 (88.4-99.4)], Cefepime Sandoz/Maxipime [95.9 (89.1-103.2)], Linezolid Kabi/Zyvoxid [104.5 (91.1-119.9)], Piperacillin Kabi/Tazobac [95.9 (90.4-101.7)], Piperacillin Aurobindo/Tazobac [99.7 (84.9-104.7)], Tazobactam Kabi/Tazobac [93.4 (87.4-99.8)] and Tazobactam Aurobindo/Tazobac [97.4 (89.7-105.8)]. Accordingly, similar ratios of AUC0-t were observed for Cefepime-MIP/Maxipime [91.1 (87.6-94.8)], Cefepime Sandoz/Maxipime [97.9 (92.5-103.5)], Linezolid Kabi/Zyvoxid [99.7 (93.3-106.6)], Piperacillin Kabi/Tazobac [92.2 (88.3-96.3)], Piperacillin Aurobindo/Tazobac [99.9 (97.0-102.8)], Tazobactam Kabi/Tazobac [91.4 (86.4-96.7)] and Tazobactam Aurobindo/Tazobac [98.8 (94.3-103.6)]. Stable and similar concentrations were measured for all contiguous substances, regardless of storage conditions. CONCLUSIONS Compared with their respective originator drugs, generic cefepime, linezolid and piperacillin/tazobactam met the predetermined bioequivalence criteria. All formulations were stable under the storage conditions of their respective comparators.
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Affiliation(s)
- Felix Bergmann
- Medical University of Vienna, Department of Clinical Pharmacology, Währinger Gürtel 18-20, 1090 Vienna, Austria.,Medical University of Vienna, Clinical Division of Plastic and Reconstructive Surgery, Department of Surgery, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Beatrix Wulkersdorfer
- Medical University of Vienna, Department of Clinical Pharmacology, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Zoe Oesterreicher
- Medical University of Vienna, Department of Internal Medicine I, Division of Infectious Diseases and Tropical Medicine, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Martin Bauer
- Medical University of Vienna, Department of Clinical Pharmacology, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Valentin Al Jalali
- Medical University of Vienna, Department of Clinical Pharmacology, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Alina Nussbaumer-Pröll
- Medical University of Vienna, Department of Clinical Pharmacology, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Michael Wölfl-Duchek
- Medical University of Vienna, Department of Clinical Pharmacology, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Anselm Jorda
- Medical University of Vienna, Department of Clinical Pharmacology, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Edith Lackner
- Medical University of Vienna, Department of Clinical Pharmacology, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Birgit Reiter
- Medical University of Vienna, Clinical Institute of Laboratory Medicine, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Thomas Stimpfl
- Medical University of Vienna, Clinical Institute of Laboratory Medicine, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Nicolas Ballarini
- Medical University of Vienna, Clinical Institute of Laboratory Medicine, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Franz König
- Medical University of Vienna, Center for Medical Statistics, Informatics, and Intelligent Systems, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Markus Zeitlinger
- Medical University of Vienna, Department of Clinical Pharmacology, Währinger Gürtel 18-20, 1090 Vienna, Austria
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Berghoff AS, Wippel C, Starzer AM, Ballarini N, Wolpert F, Bergen E, Wolf P, Steindl A, Widhalm G, Gatterbauer B, Marosi C, Dieckmann K, Bartsch R, Scherer T, Koenig F, Krebs M, Weller M, Preusser M. Hypothyroidism correlates with favourable survival prognosis in patients with brain metastatic cancer. Eur J Cancer 2020; 135:150-158. [PMID: 32603949 DOI: 10.1016/j.ejca.2020.05.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/29/2020] [Accepted: 05/10/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Several preclinical and epidemiologic studies have indicated tumour-promoting effects of thyroid hormones (THs). However, very limited knowledge exists on the prognostic impact of thyroid function in metastatic cancer. METHODS We compiled a discovery cohort of 1692 patients with newly diagnosed brain metastases (BMs) of solid cancers treated at the Medical University of Vienna and an independent validation cohort of 191 patients with newly diagnosed BMs treated at the University Hospital Zurich. RESULTS Hypothyroidism before diagnosis of cancer was evident in 133 of 1692 (7.9%) patients of the discovery, and in 18 of 191 (9.4%) patients of the validation cohort. In the discovery cohort, hypothyroidism was statistically significantly associated with favourable survival prognosis from diagnosis of cancer (31 vs. 21 months; p = 0.0026) and with survival prognosis from diagnosis of BMs (12 vs. 7 months; p = 0.0079). In multivariate analysis including the diagnosis-specific graded prognostic assessment score, primary tumour type and sex, hypothyroidism was an independent factor associated with survival after diagnosis of BMs (hazard ratio: 0.76; 95% confidence interval [CI]: (0.63; 0.91; p = 0.0034). In the validation cohort, the association of hypothyroidism and favourable survival prognosis from diagnosis of cancer (55 vs. 11 months; p = 0.00058), as well as from diagnosis of BMs (40 vs. 10 months; p = 0.0036) was confirmed. CONCLUSION Pre-existing hypothyroidism was strongly and independently associated with prognosis in patients with newly diagnosed BMs, supporting the evidence from preclinical data that THs may indeed have a tumour-promoting effect. Further investigation of the underlying pathobiological mechanism and potential therapeutic implications are required.
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Affiliation(s)
- Anna S Berghoff
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Austria; Comprehensive Cancer Center, Medical University of Vienna, Austria
| | - Christoph Wippel
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Austria; Comprehensive Cancer Center, Medical University of Vienna, Austria
| | - Angelika M Starzer
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Austria; Comprehensive Cancer Center, Medical University of Vienna, Austria
| | - Nicolas Ballarini
- Section for Medical Statistics, Center for Medical Statistics, Informatics, and Intelligent Systems, Medical University of Vienna, Austria
| | - Fabian Wolpert
- Department of Neurology and Brain Tumor Center, University Hospital and University of Zurich, Zurich, Switzerland
| | - Elisabeth Bergen
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Austria; Comprehensive Cancer Center, Medical University of Vienna, Austria
| | - Peter Wolf
- Department of Medicine III, Clinical Division of Endocrinology and Metabolism, Medical University of Vienna, Austria
| | - Ariane Steindl
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Austria; Comprehensive Cancer Center, Medical University of Vienna, Austria
| | - Georg Widhalm
- Comprehensive Cancer Center, Medical University of Vienna, Austria; Department of Neurosurgery, Medical University of Vienna, Austria
| | - Brigitte Gatterbauer
- Comprehensive Cancer Center, Medical University of Vienna, Austria; Department of Neurosurgery, Medical University of Vienna, Austria
| | - Christine Marosi
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Austria; Comprehensive Cancer Center, Medical University of Vienna, Austria
| | - Karin Dieckmann
- Comprehensive Cancer Center, Medical University of Vienna, Austria; Department of Radiotherapy, Medical University of Vienna, Austria
| | - Rupert Bartsch
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Austria; Comprehensive Cancer Center, Medical University of Vienna, Austria
| | - Thomas Scherer
- Department of Medicine III, Clinical Division of Endocrinology and Metabolism, Medical University of Vienna, Austria
| | - Franz Koenig
- Section for Medical Statistics, Center for Medical Statistics, Informatics, and Intelligent Systems, Medical University of Vienna, Austria
| | - Michael Krebs
- Department of Medicine III, Clinical Division of Endocrinology and Metabolism, Medical University of Vienna, Austria
| | - Michael Weller
- Department of Neurology and Brain Tumor Center, University Hospital and University of Zurich, Zurich, Switzerland
| | - Matthias Preusser
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Austria; Comprehensive Cancer Center, Medical University of Vienna, Austria.
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Gartlehner G, Affengruber L, Titscher V, Noel-Storr A, Dooley G, Ballarini N, König F. Single-reviewer abstract screening missed 13 percent of relevant studies: a crowd-based, randomized controlled trial. J Clin Epidemiol 2020; 121:20-28. [PMID: 31972274 DOI: 10.1016/j.jclinepi.2020.01.005] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/05/2020] [Accepted: 01/14/2020] [Indexed: 01/08/2023]
Abstract
OBJECTIVES To determine the accuracy of single-reviewer screening in correctly classifying abstracts as relevant or irrelevant for literature reviews. STUDY DESIGN AND SETTING We conducted a crowd-based, parallel-group randomized controlled trial. Using the Cochrane Crowd platform, we randomly assigned eligible participants to 100 abstracts each of a pharmacological or a public health topic. After completing a training exercise, participants screened abstracts online based on predefined inclusion and exclusion criteria. We calculated sensitivities and specificities of single- and dual-reviewer screening using two published systematic reviews as reference standards. RESULTS Two hundred and eighty participants made 24,942 screening decisions on 2,000 randomly selected abstracts from the reference standard reviews. On average, each abstract was screened 12 times. Overall, single-reviewer abstract screening missed 13% of relevant studies (sensitivity: 86.6%; 95% confidence interval [CI], 80.6%-91.2%). By comparison, dual-reviewer abstract screening missed 3% of relevant studies (sensitivity: 97.5%; 95% CI, 95.1%-98.8%). The corresponding specificities were 79.2% (95% CI, 77.4%-80.9%) and 68.7% (95% CI, 66.4%-71.0%), respectively. CONCLUSIONS Single-reviewer abstract screening does not appear to fulfill the high methodological standards that decisionmakers expect from systematic reviews. It may be a viable option for rapid reviews, which deliberately lower methodological standards to provide decision makers with accelerated evidence synthesis products.
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Affiliation(s)
- Gerald Gartlehner
- Department for Evidence-based Medicine and Evaluation, Cochrane Austria, Danube University Krems, Krems, Austria; RTI-University of North Carolina Evidence-based Practice Center, RTI International, Research Triangle Park, NC, USA.
| | - Lisa Affengruber
- Department for Evidence-based Medicine and Evaluation, Cochrane Austria, Danube University Krems, Krems, Austria; Department of Family Medicine, Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
| | - Viktoria Titscher
- Department for Evidence-based Medicine and Evaluation, Cochrane Austria, Danube University Krems, Krems, Austria
| | - Anna Noel-Storr
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | | | - Nicolas Ballarini
- Section of Medical Statistics, Medical University of Vienna, Vienna, Austria
| | - Franz König
- Section of Medical Statistics, Medical University of Vienna, Vienna, Austria
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Kaminski KS, Beechinor R, Lebovic R, Roth M, Bangdiwala A, Ballarini N, Ivanova A, Chong PP, Jamieson K, Shea TC, Rao KV. Evaluation of the Impact of Anti-Thymocyte Globulin (ATG) on Post-Hematopoietic Cell Transplant (HCT) Outcomes in Patients Undergoing Allogeneic HCT. Biol Blood Marrow Transplant 2015. [DOI: 10.1016/j.bbmt.2014.11.155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ballarini N, Brentari A, Cavani F, Luciani S, Cortelli C, Cruzzolin F, Leanza R. A revision of the mechanism of o-xylene oxidation to phthalic anhydride with V/Ti/O catalysts, and the role of the promoter Cs. Catal Today 2009. [DOI: 10.1016/j.cattod.2008.06.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Rossetti I, Fabbrini L, Ballarini N, Oliva C, Cavani F, Cericola A, Bonelli B, Piumetti M, Garrone E, Dyrbeck H, Blekkan E, Forni L. V–Al–O catalysts prepared by flame pyrolysis for the oxidative dehydrogenation of propane to propylene. Catal Today 2009. [DOI: 10.1016/j.cattod.2008.05.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ballarini N, Cavani F, Guidetti S, Maselli L, Montaletti A, Passeri S, Rovinetti S. A comparison of the reaction mechanism in acid-and in basic-catalysed gas-phase methylation of phenol. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/s0167-2991(08)80113-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
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Ballarini N, Battisti A, Cavani F, Cericola A, Lucarelli C, Racioppi S, Arpentinier P. The oxygen-assisted transformation of propane to COx/H2 through combined oxidation and WGS reactions catalyzed by vanadium oxide-based catalysts. Catal Today 2006. [DOI: 10.1016/j.cattod.2006.05.076] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Cavani F, Ballarini N, Cimini M, Trifirò F, Bañares M, Guerrero-Pérez M. Rutile-type metal (Cr, V) niobates as catalysts for propane ammoxidation to nitriles: In situ characterization and operando reactivity. Catal Today 2006. [DOI: 10.1016/j.cattod.2005.11.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ballarini N, Cavani F, Cortelli C, Gasparini F, Mignani A, Pierelli F, Trifirò F, Fumagalli C, Mazzoni G. The contribution of homogeneous and non-oxidative side reactions in the performance of vanadyl pyrophosphate, catalyst for the oxidation of n-butane to maleic anhydride, under hydrocarbon-rich conditions. Catal Today 2005. [DOI: 10.1016/j.cattod.2004.09.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Cimini M, Millet J, Ballarini N, Cavani F, Ciardelli C, Ferrari C. Synthesis, characterization and evaluation as catalysts for propane ammoxidation of VMoSbO systems with rutile-type structure. Catal Today 2004. [DOI: 10.1016/j.cattod.2004.03.059] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ballarini N, Cavani F, Ghisletti D, Catani R, Cornaro U. Cr/V/Sb mixed oxide catalysts for the ammoxidation of propane to acrylonitrile. Catal Today 2003. [DOI: 10.1016/s0920-5861(02)00347-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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