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Li M, Mindt S, Lück A, Hutzschenreuter U, Kollendt M, Lathan B, Zöller T, Frank-Gleich S, Lorentz C, Lamberti C, Sick C, Zingerle M, Tesch H, Stein W, Hebart H, Stosiek C, Sandner R, Fries S, Burkholder I, Hofheinz RD. Drug monitoring detects under- and overdosing in patients receiving 5-fluorouracil-containing chemotherapy-results of a prospective, multicenter German observational study. ESMO Open 2023; 8:101201. [PMID: 36965262 PMCID: PMC10073640 DOI: 10.1016/j.esmoop.2023.101201] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 01/23/2023] [Revised: 02/22/2023] [Accepted: 02/26/2023] [Indexed: 03/27/2023] Open
Abstract
INTRODUCTION Body surface area (BSA)-based dosing of 5-fluorouracil (5-FU) results in marked inter-individual variability in drug levels, whereas determination of plasma 5-FU concentration and area under the curve (AUC) is a more precise dosing method but has not been integrated into clinical routine. We conducted a multicenter, prospective study to study 5-FU AUC distributions and assess clinical factors predicting therapeutic dosing in patients receiving BSA-dosed 5-FU. METHODS Between June 2017 and January 2018, a total of 434 patients receiving continuous, infusional BSA-dosed 5-FU from 37 sites in Germany were included. Plasma 5-FU concentration and AUC were measured in venous blood samples at steady state. The primary objective was to determine 5-FU AUC distributions in relation to the target range, which is defined as 20-30 mg × h/l. The second objective was to explore clinical parameters that correlate with achievement of 5-FU AUC target range. RESULTS The primary tumor was mainly located in the gastrointestinal tract (96.3%), with colorectal cancer being the most common (71.2%) tumor entity. 5-FU was administered as monotherapy (8.1%) or as part of FOLFOX (33.2%), FOLFIRI (26.3%), or other regimens (12.4%). Treatment setting was adjuvant (31.3%) or metastatic (64.5%). The median AUC was 16 mg × h/l. Only 20.3% of patients received 5-FU treatment within the target range, whereas the majority of patients (60.6%) were underdosed and 19.1% of patients were overdosed. In the univariate logistic regression, treatment setting was the only clinical parameter that significantly correlated with achievement of the target range. Patients treated in the metastatic setting had a 2.1 (95% confidence interval 1.186-3.776, P = 0.011) higher odds to reach the target range compared with patients treated in the adjuvant setting. CONCLUSIONS The majority of patients received suboptimal doses of 5-FU using BSA dosing. Therapeutic drug monitoring of 5-FU is an option for optimized individualized cancer therapy and should be integrated into the clinical practice.
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Affiliation(s)
- M Li
- Department of Medicine II, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - S Mindt
- Institut für Labor- und Transfusionsmedizin, Klinikum Passau, Passau, Germany
| | - A Lück
- Facharztpraxis für Hämatologie, Onkologie und Innere Medizin, Rostock, Germany
| | - U Hutzschenreuter
- Hämatologisch-Onkologische Gemeinschaftspraxis Nordhorn, Nordhorn, Germany
| | - M Kollendt
- Praxis am Volkspark, Schwerpunktpraxis für Hämatologie und Onkologie, Berlin, Germany
| | - B Lathan
- Gemeinschaftspraxis für Hämatologie und Onkologie, Dortmund, Germany
| | - T Zöller
- Schwerpunktpraxis für Hämatologie und Internistische Onkologie, Coburg, Germany
| | - S Frank-Gleich
- Gemeinschaftspraxis und Tagesklinik Innere Medizin, Hämatologie, Onkologie, Gastroenterologie, Halle, Germany
| | - C Lorentz
- Onkologische Schwerpunkt-Praxis Worms, Worms, Germany
| | - C Lamberti
- Klinik für Hämatologie und Onkologie, Klinikum Coburg, Coburg, Germany
| | - C Sick
- Gemeinschaftspraxis Onkologie und Infektiologie, Bremen, Germany
| | - M Zingerle
- Hämato-Onkologische überörtliche Gemeinschaftspraxis Pasing und Fürstenfeldbruck, Munich, Germany
| | - H Tesch
- CHOP GmbH Comprehensive Haematology and Oncology Practice, Hämatologisch-Onkologische Gemeinschaftspraxis, Wiesbaden, Germany
| | - W Stein
- Medizinische Klinik, Klinikum Frankfurt (Oder), Frankfurt (Oder), Germany
| | - H Hebart
- Zentrum für Innere Medizin, Kliniken Ostalb, Stauferklinikum, Mutlangen, Germany
| | - C Stosiek
- Gemeinschaftspraxis Dr. med. Alexander Kröber und Dr. med. Catarina Stosiek, Regensburg, Germany
| | - R Sandner
- Passauer onkolologische Praxis Dres, Siegfried D. Prenninger und Reiner Sandner, Passau, Germany
| | - S Fries
- Onkologische Schwerpunktpraxis Bamberg, Bamberg, Germany
| | - I Burkholder
- Department of Nursing and Health, University of Applied Sciences of the Saarland, Saarbrücken, Germany
| | - R-D Hofheinz
- Mannheim Cancer Center, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
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Geßner C, Fietz T, Losem C, Lück A, Schulz H, Niemeier B, Groschek M, Eschenburg H, Weide R, Kretzschmar A, Frost N, Hipp J, Harde J, Matillon CD, Grebhardt S, Potthoff K. Prophylaxis of chemotherapy-induced neutropenia with lipegfilgrastim in patients with lung cancer: final results from the non-interventional study NADIR. Curr Med Res Opin 2022; 38:2191-2199. [PMID: 36047998 DOI: 10.1080/03007995.2022.2113693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Real-world evidence on the application of the granulocyte colony-stimulating factor lipegfilgrastim for the reduction of chemotherapy-induced neutropenia and febrile neutropenia (FN) is limited. The NADIR study aimed to evaluate effectiveness and safety of lipegfilgrastim as primary or secondary prophylaxis in patients with lung cancer undergoing chemotherapy in routine clinical practice. METHODS The non-interventional study NADIR (German Clinical Trials Register (DRKS) Number DRKS00005711) enrolled 156 patients with small-cell lung cancer (SCLC) and 145 patients with non-small-cell lung cancer (NSCLC), who received lipegfilgrastim during chemotherapy. Primary endpoint was the incidence of severe neutropenia (CTCAE grade 3/4) and FN. The analysis was stratified for age groups (≤65 years vs. >65 years). RESULTS Approximately half of the patients were aged >65 years (SCLC 54.5%; NSCLC 46.9%). Intention of antineoplastic treatment was mostly palliative (SCLC 89.1%; NSCLC 73.1%). Patients with high FN risk (SCLC 44.9%; NSCLC 28.3%) mostly received lipegfilgrastim for primary prophylaxis (SCLC 81.4%; NSCLC 70.7%). FN was reported in 1.9% SCLC and 1.4% NSCLC patients. At least one severe neutropenia was documented in 30.1% SCLC and 17.9% NSCLC patients. For NSCLC patients aged >65 years, less severe neutropenia was reported as compared to younger patients (14.7% vs. 20.8%). Lipegfilgrastim-related adverse events were reported in 10.3% SCLC and 7.7% NSCLC patients. CONCLUSION Lipegfilgrastim in routine clinical practice of patients with lung cancer showed similar effectiveness and safety as compared to the pivotal trial. Interestingly, in older patients severe neutropenia was reported less frequently. While most patients with high FN risk received lipegfilgrastim for primary prophylaxis as recommended, there are still 20-30% of patients at high FN risk without primary prophylaxis who could benefit from better adherence to guidelines.
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Affiliation(s)
| | - Thomas Fietz
- Outpatient Center for Hematology, Oncology and Gastroenterology, Singen, Germany
| | - Christoph Losem
- Outpatient Center for Hematology and Oncology, Neuss, Germany
| | - Andreas Lück
- Outpatient Center for Urology and Oncology, Rostock, Germany
| | - Holger Schulz
- Outpatient Center for Internal Oncology and Hematology, Frechen, Germany
| | | | | | - Henning Eschenburg
- Outpatient Center for Internal Medicine, Hematology and Oncology, Güstrow, Germany
| | - Rudolf Weide
- Outpatient Center for Hematology and Oncology, Koblenz, Germany
| | - Albrecht Kretzschmar
- Outpatient Center for Internal Medicine, Hematology and Oncology, Leipzig, Germany
| | - Nikolaj Frost
- Department of Infectious Diseases and Pulmonary Medicine, Charité-Universitätsmedizin, Berlin, Germany
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Fietz T, Lück A, Schulz H, Harde J, Losem C, Grebhardt S, Wolff T, Potthoff K, Müller U, Zaiss M, Kurbacher CM. Prophylaxis of chemotherapy-induced neutropenia and febrile neutropenia with lipegfilgrastim in 2489 cancer patients: final results from the non-interventional study NADIR. Curr Med Res Opin 2019; 35:1127-1138. [PMID: 30557099 DOI: 10.1080/03007995.2018.1560200] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objectives: The non-interventional study (NIS) NADIR (DRKS00005711) evaluated the effectiveness and safety of prophylaxis with lipegfilgrastim, a glycopegylated granulocyte-colony stimulating factor, in 2500 patients undergoing chemotherapy in routine clinical practice. Primary objective was the incidence of chemotherapy-induced severe neutropenia, febrile neutropenia (FN), and neutropenia-associated complications. Methods: NADIR was a prospective NIS conducted in 201 study centers in Germany. Results: The analysis included 2489 patients. Main tumor types were breast cancer (n = 1198, 48.1%), lung cancer (n = 303, 12.2%), non-Hodgkin lymphoma (NHL; n = 337, 13.5%), and prostate cancer (n = 111, 4.5%). Nine hundred and ten (36.6%) patients were aged ≥65 years (regarded as "elderly" patients). Severe neutropenia (CTCAE grade 3/4) was reported in 26.8% (n = 666) and 25.2% (n = 229) of the total population and elderly patients, respectively. FN was documented in 2.7% (n = 68) of the total population vs 3.0% (n = 27) of elderly patients. Primary prophylaxis with lipegfilgrastim among patients with high risk of FN (>20%) was documented in 83.5% of the total population and 75.1% of elderly patients. Infections (CTCAE grade 3/4) were documented in 99 patients (4.0%) in the total population vs 47 (5.1%) elderly patients. Fatal infections were reported in 14 (0.6%) patients in the total population vs 11 (1.2%) elderly patients. Overall, most frequent lipegfilgrastim-related adverse events (AEs) included bone pain (8.0%), anemia (3.2%), leucocytosis (2.7%), and thrombocytopenia (2.5%). Of the patients, 18.0% had ≥1 documented serious AE; none of the fatal events (2.7%) was lipegfilgrastim-related. Conclusions: Lipegfilgrastim administered to patients with solid tumor/NHL undergoing chemotherapy in routine clinical practice showed similar effectiveness and safety compared to the pivotal trials.
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Affiliation(s)
- Thomas Fietz
- a Outpatient Center for Hematology, Oncology and Gastroenterology , Singen , Germany
| | - Andreas Lück
- b Outpatient Center for Oncology and Urology , Rostock , Germany
| | - Holger Schulz
- c Outpatient Center for Internal Oncology and Hematology , Frechen , Germany
| | - Johanna Harde
- d iOMEDICO AG, Departments of Statistics and Clinical Operations, and Medical Department , Freiburg i.Br. , Germany
| | - Christoph Losem
- e Outpatient Center for Hematology and Oncology , Neuss , Germany
| | - Sina Grebhardt
- d iOMEDICO AG, Departments of Statistics and Clinical Operations, and Medical Department , Freiburg i.Br. , Germany
| | - Thomas Wolff
- f Outpatient Center for Oncology Lerchenfeld , Hamburg , Germany
| | - Karin Potthoff
- d iOMEDICO AG, Departments of Statistics and Clinical Operations, and Medical Department , Freiburg i.Br. , Germany
| | - Udo Müller
- g Department of Medical Oncology, TEVA GmbH , Ulm , Germany
| | - Matthias Zaiss
- h Outpatient Center for Interdisciplinary Hematology and Oncology , Freiburg i.Br. , Germany
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Dührsen U, Broszeit-Luft S, Dieing A, Lück A, Porowski P, Reiser M, Schwinger U, Klawitter S, Krumm K, Jentsch-Ullrich K. Rituximab maintenance therapy of follicular lymphoma in clinical practice. Cancer Med 2018; 7:2903-2912. [PMID: 29761908 PMCID: PMC6051161 DOI: 10.1002/cam4.1549] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 04/10/2018] [Accepted: 04/19/2018] [Indexed: 12/11/2022] Open
Abstract
Standard of care for patients with symptomatic, advanced‐stage follicular lymphoma (FL) is rituximab‐containing chemoimmunotherapy followed by rituximab maintenance. This prospective, multicenter, noninterventional study analyzed how efficacy and safety data from randomized controlled trials translate into clinical practice in Germany. Both treatment‐naïve and relapsed/refractory patients with FL, who responded to rituximab‐containing induction and were scheduled for rituximab maintenance, were observed for 24 months. Effectiveness was measured by response and Kaplan‐Meier survival analysis. In addition, treatment patterns of induction and maintenance, as well as adverse events, were documented. The evaluable study population consisted of 310 first‐line patients and 173 relapsed/refractory patients, including 116 patients with initial Ann‐Arbor stage I/II and 20 patients with FL grade 3B. Regarding first‐line induction, a shift from R‐CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, prednisone) to R‐bendamustine was observed over time, as well as a decline in radiotherapy. 2‐year progression‐free survival rates were 88.3% (95% confidence interval [CI] 84.0‐92.6) for first‐line patients and 76.0% (95% CI: 68.8‐83.3) for relapsed/refractory patients. Conversion from partial to complete remission (PR, CR) occurred in 53.4% of analyzed first‐line patients with PR, resulting in 69.4% CRs at study end (relapsed/refractory: conversion in 42.9%, final CRs 57.9%). Safety results were consistent with the known safety profile of rituximab in this setting. Both treatment‐naïve and relapsed/refractory patients with FL show favorable 2‐year PFS rates and improvements in the remission status with postinduction rituximab monotherapy as maintenance and consolidation therapy.
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Affiliation(s)
- Ulrich Dührsen
- Department of Hematology, University Hospital Essen, Essen, Germany
| | | | | | - Andreas Lück
- Center for Oncology and Urology at Rostock, Rostock, Germany
| | | | - Marcel Reiser
- Practice for Internal Oncology and Hematology, Cologne, Germany
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Kurbacher CM, Fietz T, Diel IJ, Egert M, Hurtz HJ, Lück A, Weide R, Salat C, Wolff T, Zaiss M, Klare P, Losem C, Illmer T, Weißenborn G, Steffens CC, Schulze M, Tesch H, Oskay-Oezcelik G, Teichmann B, Harde J, Scheuerlein RW. NADIR: A Non-Interventional Study on the Prophylaxis of Chemotherapy-Induced Neutropenia Using Lipegfilgrastim - First Interim Analysis. Oncol Res Treat 2015; 38:221-9. [PMID: 25966769 DOI: 10.1159/000381631] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 03/12/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND The non-interventional study (NIS) NADIR was designed to assess the effectiveness and safety of lipegfilgrastim, a novel glycopegylated granulocyte-colony stimulating factor, in reducing the risk of both febrile and severe neutropenia. METHODS Here, the interim analysis of NIS Nadir performed under real-world conditions at 80 oncology practices across Germany is reported. For a patient to be included, lipegfilgrastim at a subcutaneous single dose of 6 mg had to be administered during at least 1 cycle of the chemotherapy under consideration. RESULTS The interim analysis included 224 patients. Median patient age was 61.1 years (interquartile range 51.2-70.2 years). Main tumor type was breast cancer followed by lung cancer, and non-Hodgkin's lymphoma (46.0, 13.4, and 10.7%, respectively). When lipegfilgrastim was given as primary prophylaxis, no patient developed febrile neutropenia (FN). 1.3% of patients developed FN when primary prophylaxis was withheld. Only 68.6% of patients undergoing chemotherapy and at high risk (> 20%) of developing FN were treated with lipegfilgrastim during the first cycle, exposing disparity between real-world practices and current treatment guidelines. Lipegfilgrastim was well tolerated. The only grade 3/4 treatment-related adverse event was anemia in 1 patient. CONCLUSION Lipegfilgrastim was effective and safe when administered for the prevention of chemotherapy-induced neutropenia under real-world conditions.
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Nolte F, Höchsmann B, Lübbert M, Platzbecker U, Haase D, Lück A, Gattermann N, Giagounidis A, Leismann O, Junkes A, Schumann C, Hofmann WK, Schrezenmeier H. 347 Successful treatment of transfusional iron overload in MDS patients with deferasirox as indicated by Liver-MRI: A German, multi-center trial. Leuk Res 2011. [DOI: 10.1016/s0145-2126(11)70349-6] [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: 10/18/2022]
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Wittmer IK, Bader HP, Scheidegger R, Singer H, Lück A, Hanke I, Carlsson C, Stamm C. Significance of urban and agricultural land use for biocide and pesticide dynamics in surface waters. Water Res 2010; 44:2850-62. [PMID: 20188390 DOI: 10.1016/j.watres.2010.01.030] [Citation(s) in RCA: 149] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2009] [Revised: 01/07/2010] [Accepted: 01/26/2010] [Indexed: 05/18/2023]
Abstract
Biocides and pesticides are designed to control the occurrence of unwanted organisms. From their point of application, these substances can be mobilized and transported to surface waters posing a threat to the aquatic environment. Historically, agricultural pesticides have received substantially more attention than biocidal compounds from urban use, despite being used in similar quantities. This study aims at improving our understanding of the influence of mixed urban and agricultural land use on the overall concentration dynamics of biocides and pesticides during rain events throughout the year. A comprehensive field study was conducted in a catchment within the Swiss plateau (25 km(2)). Four surface water sampling sites represented varying combinations of urban and agricultural sources. Additionally, the urban drainage system was studied by sampling the only wastewater treatment plant (WWTP) in the catchment, a combined sewer overflow (CSO), and a storm sewer (SS). High temporal resolution sampling was carried out during rain events from March to November 2007. The results, based on more than 600 samples analyzed for 23 substances, revealed distinct and complex concentration patterns for different compounds and sources. Five types of concentration patterns can be distinguished: a) compounds that showed elevated background concentrations throughout the year (e.g. diazinon >50 ng L(-1)), indicating a constant household source; b) compounds that showed elevated concentrations driven by rain events throughout the year (e.g. diuron 100-300 ng L(-1)), indicating a constant urban outdoor source such as facades; c) compounds with seasonal peak concentrations driven by rain events from urban and agricultural areas (e.g. mecoprop 1600 ng L(-1) and atrazine 2500 ng L(-1) respectively); d) compounds that showed unpredictably sharp peaks (e.g. atrazine 10,000 ng L(-1), diazinon 2500 ng L(-1)), which were most probably due to improper handling or even disposal of products; and finally, e) compounds that were used in high amounts but were not detected in surface waters (e.g. isothiazolinones). It can be safely concluded that in catchments of mixed land use, the contributions of biocide and pesticide inputs into surface waters from urban areas are at least as important as those from agricultural areas.
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Affiliation(s)
- I K Wittmer
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland.
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Mentzel F, Augstein P, Hille W, Lück A, Salzsieder E, Vogt L. TeleMotiv – eHealth Behavior Management Model zur Motivation von Diabetikern. DIABETOL STOFFWECHS 2006. [DOI: 10.1055/s-2006-943985] [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: 10/19/2022]
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Casper J, Wilhelm S, Steiner B, Wolff D, Grobe N, Hähling D, Hartung G, Hilgendorf I, Lück A, Junghanss C, Kahl C, Baumgart J, Pichlmeier U, Freund M. Allogene Blutstammzelltransplantation von Risikopatienten nach Konditionierung mit Treosulfan und Fludarabin. Dtsch Med Wochenschr 2005; 130:2125-9. [PMID: 16172951 DOI: 10.1055/s-2005-916351] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND AND OBJECTIVE Allogeneic transplantation can not be offered to many patients due to potential side-effects of conventional conditioning. Dose-reduced conditioning approaches improve tolerability, however, treatment efficacy may be reduced as well. We have, therefore, developed a dose intense but toxicity reduced conditioning regimen based on treosulfan and fludarabine and report first results. PATIENTS AND METHODS 65 patients with a median age of 50 years were transplanted from related (n = 21) or unrelated donors (n = 44) after conditioning with treosulfan (3 x 10, 3 x 12 or 3 x 14 g/m(2) i. v.) and fludarabine (5 x 30 mg/m(2) i. v.). 21 patients were in complete remission (CR) and 44 patients had not reached a CR at the time of transplantation. 59 of 65 patients were considered unfit for a conventional conditioning regimen. RESULTS The actuarial overall survival after 3 years is 59.2 %, the event-free survival 40.1 %. Patients with a related donor or transplantation in CR had a better overall (85.4 resp. 74.2 %) and event-free survival (52.2 % resp. 61.9 %). The cumulative incidence of relapse at 3 years was 26.2 %. Non-relapse mortality at day 100 is 17.4 % (cumulative incidence). In stepwise Cox regression analyses for overall survival, event-free survival and non-relapse mortality the covariables transplantation in CR vs. not in CR and the donor status were shown to be influential. CONCLUSIONS These results with a conditioning therapy of treosulfan and fludarabine indicate that patients despite higher age, concomitant disease or after intensive pretreatment can be successfully transplanted without increased treatment-related mortality.
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Affiliation(s)
- J Casper
- Abteilung Hämatologie und Onkologie der Medizinischen Fakultät der Universität Rostock.
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Rimek D, Haase G, Lück A, Casper J, Podbielski A. First report of a case of meningitis caused by Cryptococcus adeliensis in a patient with acute myeloid leukemia. J Clin Microbiol 2004; 42:481-3. [PMID: 14715811 PMCID: PMC321734 DOI: 10.1128/jcm.42.1.481-483.2004] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2003] [Revised: 09/20/2003] [Accepted: 10/12/2003] [Indexed: 11/20/2022] Open
Abstract
Cryptococcus adeliensis is a recently described new fungal species which has been isolated from decaying algae in Terre Adelie, Antarctica. We report the first known case of meningitis caused by C. adeliensis in a patient with acute myeloid leukemia undergoing allogeneic peripheral blood stem cell transplantation.
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Affiliation(s)
- Dagmar Rimek
- Department of Medical Microbiology and Hospital Hygiene, University of Rostock, Rostock, Germany.
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Sterzik K, Abt M, Lück A, Strehler E. Does Cigarette Smoking in Subfertile Male Patients Impair Fertilization Rates in IVF Cycles? Fertil Steril 2000. [DOI: 10.1016/s0015-0282(00)01016-5] [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: 10/18/2022]
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Abstract
The tail muscle of the lobster Homarus americanus contains an actin-binding protein with an apparent molecular mass of 105 kDa determined by SDS/PAGE and gelsolin-like properties. We isolated this protein and peptide sequences were obtained after limited proteolysis with chymotrypsin. A tail-muscle-specific cDNA library was constructed in a lambda expression vector and a full-length clone was obtained by screening with a polyclonal anti-(crustacean gelsolin) antibody. The cDNA insert of approx. 3.2 kb length was sequenced. The cDNA contained an open reading frame of 2.265 kb, and the deduced amino acid sequence of 754 residues (83,469 Da) identified the protein as a cytoplasmic member of the gelsolin/villin protein family. Comparison of the lobster gelsolin amino acid sequence with other members of this protein family revealed the characteristic 6-fold repeated segmental structure as well as the three conserved sequence motifs typical of each segment [Way and Weeds (1988) J. Mol. Biol. 203, 1127-1133]. Strong homologies were found with Drosophila gelsolin, human gelsolin, villin core, Dictyostelium severin and Physarum fragmin. In addition, the gelsolin-like protein from lobster muscle revealed motifs that were clearly similar to the actin-bundling region of human villin headpiece although it did not itself contain a distinct headpiece domain. The recombinant lobster gelsolin-like protein, expressed in Escherichia coli as a fusion protein, was purified from inclusion bodies and renatured as a functional protein. There were no significant differences in the biological activity tested between the recombinant and the native protein isolated from lobster muscle.
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Affiliation(s)
- A Lück
- Biochemical Cell Biology Group, University of Bielefeld, Federal Republic of Germany
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Silberklang M, RajBhandary UL, Lück A, Erdmann VA. Chemical reactivity of E. coli 5S RNA in situ in the 50S ribosomal subunit. Nucleic Acids Res 1983; 11:605-17. [PMID: 6340064 PMCID: PMC325740 DOI: 10.1093/nar/11.3.605] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
E. coli 50S ribosomal subunits were reacted with monoperphthalic acid under conditions in which non-base paired adenines are modified to their 1-N-oxides. 5S RNA was isolated from such chemically reacted subunits and the two modified adenines were identified as A73 and A99. The modified 5S RNA, when used in reconstitution of 50S subunits, yielded particles with reduced biological activity (50%). The results are discussed with respect to a recently proposed three-dimensional structure for 5S RNA, the interaction of the RNA with proteins E-L5, E-L18 and E-L25 and previously proposed interactions of 5S RNA with tRNA, 16S and 23S ribosomal RNAs.
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