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Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Radioimmunotherapy for mantle cell lymphoma : 5-year follow-up of 90 patients from the international RIT registry
Get PDFTo assess the efficacy of radioimmunotherapy (RIT) wit
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Radioimmunotherapy Is Safe and Effective in Relapse after Stem Cell Transplantation for B-Cell Non Hodgkins Lymphoma, An Analysis of the International RIT-Network
No full textAppropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
An Exploratory Analysis of Brentuximab Vedotin Plus CHP (A+CHP) in the Frontline Treatment of Patients with CD30+ Peripheral T-Cell Lymphomas (ECHELON-2): Impact of Consolidative Stem Cell Transplant
No full textIntroduction The ECHELON-2 study (NCT01777152) demonstrated significantly longer progression-free survival (PFS) and overall survival with brentuximab vedotin plus cyclophosphamide, doxorubicin, and prednisone (A+CHP) versus CHOP in the frontline treatment of patients (pts) with sALCL or other CD30-expressing PTCL and supported the 2018 FDA approval in this setting. Consistent with current guidelines, pts could have received consolidative stem cell transplant (SCT) after treatment at the discretion of the treating investigator. In all pts treated with A+CHP, only 22% (50 of 226) underwent SCT. Herein, we present outcomes from an exploratory analysis of pts in a complete remission (CR) following A+CHP who received an SCT and those who did not. Methods CR rate was defined at the end of treatment (EOT) by independent review per the Revised Response Criteria for Malignant Lymphoma. ALK+ sALCL pts were excluded because they tend to have more favorable outcomes. Consolidative transplant was not considered a PFS event. A univariate analysis of SCT versus no SCT and multivariate analyses adjusting for region and age were performed. Results Sixty-seven percent (76/113 pts) of pts with ALK- sALCL on the A+CHP arm were in CR at EOT and 36% (27/76) of them received SCT. Pts who underwent SCT were younger, with a median age of 50 years (yr) (range 18-68) compared with 59 yr (range 20-85) in those without SCT. Median PFS for pts with SCT was not reached (95% CI 36.57, not estimable [NE]) versus 55.66 mos (95% CI 23.72, 55.66) for pts without SCT. Fifty-nine percent (38/64) of pts with non-sALCL on the A+CHP arm were in CR at EOT and 29% (11/38) of them received SCT. Pts who underwent SCT were younger than those without (median age 57 yr [35-73] vs 66 yr [49-77]). Median PFS for pts who did and did not receive SCT was not reached (95% CI 20.70, NE) versus 33.22 mos (95% CI 8.08, NE), respectively. Prior to treatment start, the intent to transplant in Asian countries among ALK- sALCL and non-ALCL pts was less frequent in comparison to non-Asian countries (13% and 29% vs 49% and 57%, respectively). The proportion of pts ultimately transplanted was also less frequent (13% and 12% in Asia versus 32% and 23% in non-Asian countries). Standard PFS and multivariate proportional hazards regression analyses favored the use of SCT in PTCL pts in a CR after A+CHP (Table). Conclusions Numerical PFS estimates favor the use of SCT in PTCL pts in a CR after A+CHP; however, sample sizes are small. It is also recognized that unknown confounders may impact this post-hoc analysis. We observed that use of SCT was infrequent in Asian countries, suggesting regional practice differences. The overall impact of consolidative SCT remains unconfirmed, including in patients treated with A+CHP. Further studies are needed to establish its role in this setting. Table Disclosures Savage: BMS, Merck, Novartis, Verastem, Abbvie, Servier, and Seattle Genetics: Consultancy, Honoraria; Seattle Genetics, Inc.: Consultancy, Honoraria, Research Funding. Horwitz:Millennium/Takeda: Consultancy, Research Funding; Infinity/Verastem: Consultancy, Research Funding; Trillium: Research Funding; Infinity/Verastem: Consultancy, Research Funding; Aileron: Research Funding; Kura: Consultancy; Affimed: Consultancy; Millennium/Takeda: Consultancy, Research Funding; Celgene: Consultancy, Research Funding; Trillium: Research Funding; Portola: Consultancy; Forty-Seven: Research Funding; Mundipharma: Consultancy; Celgene: Consultancy, Research Funding; ADCT Therapeutics: Research Funding; Astex: Consultancy; Astex: Consultancy; Celgene: Consultancy, Research Funding; Infinity/Verastem: Consultancy, Research Funding; Infinity/Verastem: Consultancy, Research Funding; Innate Pharma: Consultancy; Affimed: Consultancy; Affimed: Consultancy; Kura: Consultancy; ADCT Therapeutics: Research Funding; Kyowa Hakko Kirin: Consultancy; Corvus Pharmaceuticals: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Corvus Pharmaceuticals: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Kyowa Hakko Kirin: Consultancy; Astex: Consultancy; Miragen: Consultancy; Celgene: Consultancy, Research Funding; Mundipharma: Consultancy; Innate Pharma: Consultancy; Kura: Consultancy; Millennium/Takeda: Consultancy, Research Funding; Astex: Consultancy; ADCT Therapeutics: Research Funding; Affimed: Consultancy; Portola: Consultancy; Miragen: Consultancy; Aileron: Research Funding; Trillium: Research Funding; Seattle Genetics: Consultancy, Research Funding; Portola: Consultancy; Innate Pharma: Consultancy; Forty-Seven: Research Funding; Miragen: Consultancy; Kyowa Hakko Kirin: Consultancy; Aileron: Research Funding; Corvus Pharmaceuticals: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Seattle Genetics: Consultancy, Research Funding; Miragen: Consultancy; ADCT Therapeutics: Research Funding; Corvus Pharmaceuticals: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Millennium/Takeda: Consultancy, Research Funding; Kura: Consultancy; Innate Pharma: Consultancy; Seattle Genetics: Consultancy, Research Funding; Forty-Seven: Research Funding; Mundipharma: Consultancy; Seattle Genetics: Consultancy, Research Funding; Aileron: Research Funding; Kyowa Hakko Kirin: Consultancy; Trillium: Research Funding; Forty-Seven: Research Funding; Portola: Consultancy; Mundipharma: Consultancy. Advani:Regeneron: Research Funding; Pharmacyclics: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Gilead Sciences, Inc./Kite Pharma, Inc.: Consultancy, Membership on an entity's Board of Directors or advisory committees; Celmed: Consultancy, Membership on an entity's Board of Directors or advisory committees; Bristol-Myers Squibb: Membership on an entity's Board of Directors or advisory committees, Research Funding; Millennium: Research Funding; Forty-Seven: Research Funding; AstraZeneca: Consultancy, Membership on an entity's Board of Directors or advisory committees; Cell Medica, Ltd: Consultancy; Janssen: Research Funding; Merck: Research Funding; Bayer: Consultancy, Membership on an entity's Board of Directors or advisory committees; Infinity Pharma: Research Funding; Celgene: Research Funding; Kura: Research Funding; Roche/Genentech: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding; Kyowa Kirin Pharmaceutical Developments, Inc.: Consultancy; Takeda: Consultancy, Membership on an entity's Board of Directors or advisory committees; Autolus: Consultancy, Membership on an entity's Board of Directors or advisory committees; Stanford University: Employment, Equity Ownership; Seattle Genetics: Consultancy, Research Funding; Agensys: Research Funding. Domingo-Domenech:Roche: Other: Travel expenses; Seattle Genetics: Research Funding; Takeda: Consultancy, Membership on an entity's Board of Directors or advisory committees, Other: Travel expenses; Bristol-Myers Squibb: Other: Travel expenses. Rossi:Daiichi-Sankyo: Consultancy; Celgene: Membership on an entity's Board of Directors or advisory committees; Amgen: Membership on an entity's Board of Directors or advisory committees; Gilead: Membership on an entity's Board of Directors or advisory committees; Sanofi: Membership on an entity's Board of Directors or advisory committees; Abbvie: Membership on an entity's Board of Directors or advisory committees; Pfizer: Membership on an entity's Board of Directors or advisory committees; Jazz: Membership on an entity's Board of Directors or advisory committees; Astellas: Membership on an entity's Board of Directors or advisory committees; Novartis: Honoraria; Mundipharma: Honoraria; BMS: Honoraria; Sandoz: Honoraria; Roche: Membership on an entity's Board of Directors or advisory committees; Janssen: Membership on an entity's Board of Directors or advisory committees. Morschhauser:Roche: Honoraria, Membership on an entity's Board of Directors or advisory committees; Janssen: Honoraria; Gilead: Membership on an entity's Board of Directors or advisory committees; Epizyme: Membership on an entity's Board of Directors or advisory committees; Celgene: Membership on an entity's Board of Directors or advisory committees; Bristol-Myers Squibb: Membership on an entity's Board of Directors or advisory committees; Bayer: Membership on an entity's Board of Directors or advisory committees; Seattle Genetics: Research Funding. Alpdogan:Seattle Genetics, Inc.: Research Funding. Tobinai:Meiji Seika: Honoraria; Takeda Pharmaceutical: Consultancy, Honoraria, Research Funding; Mundi Pharma: Consultancy, Honoraria, Research Funding; AbbVie: Research Funding; Chugai Pharmaceutical: Honoraria, Research Funding; Eisai: Honoraria, Research Funding; Kyowa Kirin: Honoraria, Research Funding; Verastem: Honoraria; Zenyaku Kogyo: Consultancy, Honoraria; Yakult: Honoraria; Bristol-Myers Squibb: Honoraria; HUYA Bioscience: Consultancy, Honoraria; Janssen Pharmaceutical: Honoraria, Research Funding; Celgene: Consultancy, Honoraria, Research Funding; Solasia: Honoraria; Daiichi Sankyo: Consultancy, Honoraria; Ono Pharmaceutical: Consultancy, Honoraria, Research Funding. Shustov:Seattle Genetics, Inc.: Research Funding. Trneny:Roche: Consultancy, Honoraria; Bristol-Myers Squibb: Consultancy, Honoraria; Amgen: Consultancy, Honoraria; Abbvie: Consultancy, Honoraria; Incyte: Consultancy, Honoraria; Gilead sciences: Consultancy, Honoraria; Takeda: Consultancy, Honoraria; Janssen: Consultancy, Honoraria; Morphosys: Consultancy, Honoraria. Yuen:Seattle Genetics, Inc.: Other: Travel expenses, Research Funding. Zinzani:Verastem: Consultancy, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; MSD: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Eusapharma: Consultancy, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Sanofi: Consultancy; Celltrion: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Gilead: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Janssen-Cilag: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; BMS: Honoraria, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Servier: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Sandoz: Membership on an entity's Board of Directors or advisory committees; Immune Design: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Celgene: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Portola: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Roche: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Kyowa Kirin: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; TG Therapeutics: Honoraria, Speakers Bureau. Truemper:Janssen Oncology: Consultancy; Nordic Nanovector: Consultancy; Seattle Genetics, Inc.: Research Funding; Mundipharma: Research Funding; Roche: Research Funding; Takeda: Consultancy, Research Funding. Illidge:Div of Cancer Sciences, Faculty of Biology, Medicine and Health, Univ of Manchester, National Institutes of Health and Research Biomedical Research Center, Manchester Academic Health Sciences, Christie Hospital National Health Service Foundation Trust: Employment; Takeda: Consultancy, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Seattle Genetics, Inc.: Research Funding. O'Connor:Spectrum Pharma: Consultancy, Other: Travel expenses, Research Funding; Roche: Research Funding; Seattle Genetics, Inc.: Consultancy, Other: Travel expenses, Research Funding; Allos Therapeutics: Consultancy; Acetylon Pharma: Other: Travel expenses, Research Funding; Celgene: Research Funding; Millenium: Consultancy, Honoraria, Other: Travel expenses, Research Funding; Mundipharma: Consultancy, Honoraria, Other: Travel expenses, Research Funding; Novartis: Consultancy, Honoraria. Pro:Kyowa Hakka Kirin: Consultancy, Honoraria; Takeda: Consultancy, Honoraria, Other: Travel Expenses; Celgene: Consultancy, Honoraria; Seattle Genetics: Consultancy, Honoraria, Other: Travel Expenses, Research Funding. Little:Takeda Pharmaceuticals: Employment. Bunn:Takeda Pharmaceuticals: Employment. Fenton:Seattle Genetics, Inc.: Employment, Equity Ownership. Manley:Seattle Genetics: Employment, Equity Ownership. Iyer:Incyte: Research Funding; Bristol-Myers Squibb: Research Funding; Seattle Genetics, Inc.: Research Funding; Genentech/Roche: Research Funding; Novartis: Research Funding; Arog: Research Funding
Role of stem cell transplant in CD30+ PTCL following frontline brentuximab vedotin plus CHP or CHOP in ECHELON-2
No full textPeripheral T-cell lymphomas (PTCLs) are a heterogeneous group of aggressive non-Hodgkin lymphomas, the majority of which have a high relapse rate following standard therapy. Despite use of consolidative stem cell transplant (SCT) following frontline therapy, there remains no consensus on its utility. The double blind randomized phase 3 ECHELON-2 study (NCT01777152) demonstrated an improved progression-free survival (PFS) and overall survival with frontline brentuximab vedotin plus cyclophosphamide, doxorubicin, and prednisone (A+CHP). Herein, we conducted an exploratory subgroups analysis of the impact of consolidative SCT on PFS in patients with previously untreated, CD30-positive PTCL (ALK-negative anaplastic large cell lymphoma [ALCL] and non-ALCL) who were in complete response (CR) at end of treatment with frontline A+CHP or CHOP. Median PFS follow-up was 47.57 months (95% CI, 41.89-48.16). The PFS hazard ratio was 0.36 (95% CI, 0.17-0.77), equating to an 64% reduction in the risk of a PFS event in patients who underwent SCT. The median PFS in patients who underwent SCT was not reached (95% CI, 49.81, NA), versus 55.66 months (95% CI, 19.88, NA) in patients who did not undergo SCT. PFS results favored the use of SCT in both ALK-negative ALCL and non-ALCL subgroups. These data support the consideration of consolidative SCT in patients with CD30-positive PTCL who achieve a CR following treatment with A+CHP
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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