Annette Sander

Hannover Medical School, Hannover, Lower Saxony, Germany

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Publications (13)87.47 Total impact

  • [show abstract] [hide abstract]
    ABSTRACT: Outcome of adult and pediatric patients with AML improved significantly by intensification of induction treatment. To further intensify anthracycline-dosage without increasing cardiotoxicity, we compared the potentially less cardiotoxic liposomal daunorubicin (L-DNR) at a higher than equivalent dose (80mg/m(2)/day/x3) to idarubicin (12mg/m(2)/day/x3) during induction. In study AML-BFM 2004, 521/611 pediatric patients (85%) were randomly assigned to L-DNR or idarubicin induction. Five-year results in both treatment arms were similar (overall survival: 76%±3% [L-DNR] vs. 75%±3% [idarubicin], plogrank=.65, event-free survival [pEFS]: 59%±3% vs. 53%±3%, plogrank=.25; cumulative incidence of relapse: 29%±3% vs. 31%±3%, p(Gray)=0.75), as were EFS results for standard (72%±5% vs. 68%±5%, plogrank=.47) and high-risk patients (51%±4% vs. 46%±4%, plogrank=.45). L-DNR resulted in significantly better pEFS in t(8;21) patients. Overall, treatment-related mortality (TRM), was lower in the L-DNR- than in the idarubicin-group (2/257 vs. 10/264 patients, p=.04). Grade III/IV cardiotoxicity was rare after induction (4 L-DNR- vs. 5 idarubicin-patients). Only one L-DNR- and 3 idarubicin-patients presented with subclinical or mild cardiomyopathy during follow-up. We conclude that L-DNR has - at the given dose - an overall anti-leukemic activity comparable to idarubicin, promises to be more active in subgroups, and causes less TRM. These results with high survival rates support its use in the forthcoming AML-BFM trial. ClinicalTrials.gov Identifier: NCT00111345.
    Blood 05/2013; · 9.06 Impact Factor
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    ABSTRACT: BACKGROUND: In 2007, the patient's right to specialised palliative home care became law in Germany. However, childhood palliative care in territorial states with low patient numbers and long distances requires adapted models to ensure an area-wide maintenance. Actually, general paediatricians are the basic care providers for children and adolescents. They also provide home care. The aim of this study was to improve the knowledge about general paediatrician's involvement in and contribution to palliative care in children. FINDINGS: To evaluate the current status of palliative home care provided by general paediatricians and their cooperation with other paediatric palliative care providers, a questionnaire survey was disseminated to general paediatricians in Lower Saxony, a German federal state with nearly eight million inhabitants and a predominantly rural infrastructure. Data analysis was descriptive.One hundred forty one of 157 included general paediatricians completed the questionnaire (response rate: 89.8%). A total of 792 children and adolescents suffering from life-limiting conditions were cared for by these general paediatricians in 2008. Severe cerebral palsy was the most prevalent diagnosis. Eighty-nine per cent of the general paediatricians stated that they had professional experience with paediatric palliative care.Collaboration of general paediatricians and other palliative care providers was stated as not well developed. The support by a specialised team including 24-hour on-call duty and the intensification of educational programs were emphasised. CONCLUSIONS: The current regional infrastructure of palliative home care in Lower Saxony can benefit from the establishment of a coordinated network of palliative home care providers.
    BMC Research Notes 09/2012; 5(1):498.
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    ABSTRACT: The survival rate of children and adolescents suffering acute myeloid leukemia (AML) has been significantly improved within the last decades. This has been achieved by a continuously intensified therapy and progress in supportive care to prevent and treat complications. In Germany, the AML-BFM trials 98 (n=413) and 2004 (n=499) enrolled 912 children and adolescents as protocol patients (1998-2010). The 5-year-overall survival was 71±2%. In the previous studies prognosis and subsequent treatment stratification based on morphology, cytochemistry and white blood cell count. Today, the identification of new genetic aberrations in AML enables a genetically determined estimation of prognosis, although treatment response must be considered for treatment stratification. The group with a favorable prognosis summarized AML with t(8;21), inv(16), t(15;17), t(1;11), and AML with normal karyotype and NPM1-mutation (n=253; EFS 74±3%, OS 88±2%). A poor prognosis (HR-group) must be expected in AML with t(4;11), t(5;11), t(6;11), t(6;9), t(7;12), t(9;22), Monosomy 7, combined FLT3/WT1-mutation, and AML with der(12p)-aberration (n=101; EFS 30±5%; OS 56±5%). The intermediate group summarizes all other subgroups especially AML with normal karyotyp, AML with FLT3-ITD or t(9;11) (n=558; EFS 43±2%; OS 64±2%). The validation of the internationally identified, genetically determined prognostic factors within the AML-BFM (Germany) study population will support treatment recommendations.
    Klinische Pädiatrie 07/2012; · 1.90 Impact Factor
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    ABSTRACT: Mutations of the hematopoietic transcription factor GATA1 (GATA1s) are pathognomonic in newborn with transient leukemia and children with Down syndrome and myeloid leukemia (ML-DS). Both TL and ML-DS can also occur in children with trisomy 21 mosaic.Between 2002 and 2011, 15 newborns and infants were diagnosed with DS mosaic. 9 of them presented with TL and 8 children suffered from ML-DS; 2 of them with a history of TL. In children without stigmata the special morphology and immunophenotype of blasts triggered the screening for GATA1 mutation and trisomy 21 mosaic.All newborns with TL achieved complete remission (CR). Due to clinical symptoms caused by the leukemic blasts, in 3 children low-dose cytarabine was applied. 1 patient died due to cardiac defect. In all patients GATA 1 s was confirmed. 6 children with ML-DS were initially treated according the AML-BFM protocol. After ML-DS was confirmed, therapy was continued with the intensity reduced schedule according to the ML-DS 2006 protocol. All children are still in CR (follow-up 1.8-7 years, median 2.7 yrs). 2 children with unknown trisomy 21 mosaic were diagnosed as acute megakaryoblastic leukemia (AMKL) and treated according the high risk arm of the AML-BFM 2004 including allogeneic stem cell transplantation in one child). GATA1 mutation was identified retrospectively. Both children are alive in CR.GATA1s associated leukemia has to be excluded in all young children with AMKL (<5 years old) to prevent overtreatment. Treatment with reduced intensity seems sufficient in children trisomy 21 mosaic and ML-DS.
    Klinische Pädiatrie 04/2012; 224(3):153-5. · 1.90 Impact Factor
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    ABSTRACT: Infants <1 year of age have a high prevalence of prognostically unfavorable leukemias and a presumed susceptibility to treatment-related toxicities. A total of 125 infants with acute myeloid leukemia (AML) were treated in studies AML-BFM-98 (n = 59) and -2004 (n = 66). Treatment regimens of both studies were comparable, consisting of intensive induction followed by four courses (mainly high-dose cytarabine and anthracyclines). Allogeneic-hematopoietic stem-cell-transplantation (allo-HSCT) in 1st remission was optional for high-risk (HR) patients. Most infants (120/125=96%) were HR patients according to morphological, cytogenetic/molecular genetic and response criteria. Five-year overall survival was 66 ± 4%, and improved from 61 ± 6% in study-98 to 75 ± 6% in study-2004 (P(logrank) 0.14) and event-free survival rates were 44 ± 6% and 51 ± 6% (P(logrank) 0.66), respectively. Results in HR infants were similar to those of older HR children (1-<2- or 2-<10-year olds, P(logrank) 0.90 for survival). Survival rates of HSCT in 1st remission, initial partial response and after relapse were high (13/14, 2/8 and 20/30 patients, respectively). The latter contributes to excellent 5-year survival after relapse (50±8%). Despite more severe infections and pulmonary toxicities in infants, treatment-related death rate was identical to that of older children (3%). Our data indicate that intensive frontline and relapse AML treatment is feasible in infants, toxicities are manageable, and outcome is favorable.
    Leukemia: official journal of the Leukemia Society of America, Leukemia Research Fund, U.K 10/2011; 26(4):654-61. · 10.16 Impact Factor
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    ABSTRACT: Patients with core binding factor acute myeloid leukemia (CBF-AML) benefit from more intensive chemotherapy, but whether both the t(8;21) and inv(16)/t (16;16) subtypes requires intensification remained to be determined. In the 2 successive studies (AML-BFM-1998 and AML-BFM-2004), 220 CBF-AML patients were treated using the same chemotherapy backbone, whereby reinduction with high-dose cytarabine and mitoxantrone (HAM) was scheduled for these cohorts only in study AML-BFM-1998 but not in AML-BFM-2004 against the background to minimize overtreatment. Five-year overall survival (OS) and event-free survival (EFS) were significantly higher and the cumulative incidence of relapse (CIR) lower in t(8;21) patients treated with HAM (n = 78) compared with without HAM (n = 53): OS 92% ± 3% versus 80% ± 6%, p(logrank)0.047, EFS 84% ± 4% versus 59% ± 7%, p(logrank)0.001, and CIR 14% ± 4% versus 34% ± 7%, p((gray))0.006. These differences were not seen for inv(16) (n = 43 and 46, respectively): OS 93% ± 4% versus 94% ± 4%, EFS 75% ± 7% versus 71% ± 9% and CIR 15% ± 6% versus 23% ± 8% (not significant). The subtype t(8;21), but not inv(16), was an independent predictor of worse outcome without HAM reinduction. Based on our data, a 5-year OS of > 90% can be expected for CBF-AML, when stratifying t(8;21), but not inv(16), patients to high-risk chemotherapy, including HAM reinduction.
    Blood 09/2011; 118(20):5409-15. · 9.06 Impact Factor
  • Kinderkrankenschwester: Organ der Sektion Kinderkrankenpflege / Deutsche Gesellschaft fur Sozialpadiatrie und Deutsche Gesellschaft fur Kinderheilkunde 10/2010; 29(10):419-23.
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    ABSTRACT: Relapse remains the major cause of treatment failure in pediatric acute myeloid leukemia (AML). We analyzed the clinical characteristics, treatment response to relapse treatment and overall survival (OS) of 379 children with AML relapse treated according to three consecutive frontline protocols of the AML-Berlin/Frankfurt/Muenster study group (AML-BFM-87/-93/-98). Of 313 treated patients with data on remission status, 198 children (63%) achieved a second complete remission (CR2). There were no significant differences in remission rates and OS for the intensive reinduction treatment schedules used. The 5-year OS rate was 23% for the total group and 29% for patients treated with curative intent. OS rates increased with study periods from 18 to 34% (P(log rank)=0.012), whereas the proportion of patients receiving only palliative treatment decreased from 23 to 11% (P(CMH)=0.005). Late relapse, no allogeneic stem cell transplantation (SCT) in CR1, age <10 years and favorable cytogenetics were independent favorable prognostic factors for survival. Achievement of CR2 was the most important prognostic factor (OS 44 vs 3%; P(log rank)<0.0001). Overall, one-third of children with relapsed AML can be cured today. SCT in CR2 is recommended for most patients, although its impact on CR2 is discussed.
    Leukemia: official journal of the Leukemia Society of America, Leukemia Research Fund, U.K 08/2010; 24(8):1422-8. · 10.16 Impact Factor
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    ABSTRACT: Times Cited: 0 Meeting Abstract English 0067 Cited References Count: 0 614IY VIA GIUSEPPE BELLI 4, 27100 PAVIA, ITALY PAVIA Suppl. 2
    Haematologica-the Hematology Journal. 06/2010; 95:27.
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    ABSTRACT: Because cytogenetic data are essential for risk stratification of childhood acute myeloid leukemia (AML), the impact of chromosomal aberrations is crucial. Data of a large group of patients younger than 18 years treated according to study AML-Berlin-Frankfurt-Münster (BFM) 98 (n = 454), including their cytogenetics, were analyzed. The favorable outcome in the subgroups of patients with t(8;21), inv(16), and t(15;17), with an overall survival of 91% (SE, 4%), 92% (SE, 6%), and 87% (SE, 5%), respectively, was confirmed. Within this group, the 5-year probability of event-free survival (pEFS) of all 17 children with t(8;21) and additional aberrations apart from del(9q) or -X/-Y was 100%. As expected, the cytogenetic finding of a complex karyotype (n = 35; pEFS, 33%; SE, 8%) or a monosomy 7 (n = 12; pEFS, 17%; SE, 11%) was associated with a poor outcome. Compared with remaining patients with cytogenetic data (pEFS, 48%; SE, 2%), prognosis in patients with an MLL rearrangement (n = 91) was inferior (pEFS, 34%; SE, 5%; P = .0005). Particularly, children with t(9;11) and additional aberrations (n = 13; pEFS, 31%; SE, 14%) and MLL rearrangements other than t(9;11) and t(11;19) (n = 41; pEFS, 24%; SE, 7%) had an unfavorable outcome. Nine patients with aberrations in 12p showed an adverse prognosis (pEFS, 11%; SE, 10%). The outcome of patients with aberrations of chromosome 5 (n = 13) was better than expected (pEFS, 50%; SE, 13%). Because the prognostic value of rare recurrent chromosomal aberrations still has to be elucidated, these data will contribute to future risk stratification for the treatment of pediatric AML.
    Journal of Clinical Oncology 06/2010; 28(16):2682-9. · 18.04 Impact Factor
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    ABSTRACT: Times Cited: 0 Meeting Abstract English Cited References Count: 0 532DS 1900 M STREET. NW SUITE 200, WASHINGTON, DC 20036 USA WASHINGTON
    Blood 11/2009; 114(22):198-199. · 9.06 Impact Factor
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    ABSTRACT: Times Cited: 0 Meeting Abstract English Cited References Count: 0 389OP 1900 M STREET. NW SUITE 200, WASHINGTON, DC 20036 USA WASHINGTON
    Blood 11/2008; 112(11):342. · 9.06 Impact Factor
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    ABSTRACT: Times Cited: 0 Meeting Abstract English Cited References Count: 0 389OP 1900 M STREET. NW SUITE 200, WASHINGTON, DC 20036 USA WASHINGTON
    Blood 11/2008; 112(11):354. · 9.06 Impact Factor

Publication Stats

66 Citations
87.47 Total Impact Points

Institutions

  • 2013
    • Hannover Medical School
      • Department of Paediatric Haematology and Oncology
      Hannover, Lower Saxony, Germany
  • 2011
    • Universitätsklinikum Münster
      • Klinik und Poliklinik für Kinder- und Jugendmedizin - Pädiatrische Hämatologie und Onkologie
      Muenster, North Rhine-Westphalia, Germany
  • 2008
    • VU University Amsterdam
      • Department of Pediatric Hematology/Oncology
      Amsterdamo, North Holland, Netherlands
    • Charles University in Prague
      Praha, Praha, Czech Republic