6 results on '"Larsen, Thomas S."'
Search Results
2. Pretreatment Hemoglobin Adds Prognostic Information To The NCCN-IPI In Patients With Diffuse Large B-Cell Lymphoma Treated With Anthracycline-Containing Chemotherapy.
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Clausen, Michael R, Maurer, Matthew J, Ulrichsen, Sinna Pilgaard, Larsen, Thomas S, Himmelstrup, Bodil, Rønnov-Jessen, Dorthe, Link, Brian K, Feldman, Andrew L, Slager, Susan L, Nowakowski, Grzegorz S, Thompson, Carrie A, Pedersen, Per Trøllund, Madsen, Jakob, Pedersen, Robert S, Gørløv, Jette Sønderskov, Cerhan, James R, Nørgaard, Mette, and D'Amore, Francesco
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HEMOGLOBINS ,LYMPHOMAS ,HODGKIN'S disease ,CANCER chemotherapy ,MOLECULAR epidemiology - Abstract
Background: Hemoglobin (Hgb) concentration at diagnosis is associated with outcome in cancer. In a recently reported simplified 3-factor prognostic score in Hodgkin lymphoma, Hgb, along with age and clinical stage, outperformed the classical International Prognostic Score with seven parameters. Methods: In the present study, we investigated if pretherapeutic Hgb concentration added prognostic information to the NCCN-IPI in diffuse large B-cell lymphoma. We included patients from the Danish Lymphoma Registry (LYFO; N = 3499) and from the Molecular Epidemiology Resource (MER; N = 1225), Mayo Clinic and University of Iowa. Four sex-specific Hgb groups were defined: below transfusion threshold, from transfusion threshold to below lower limit of normal, from lower limit of normal to the population mean, and above the mean. We used multivariable Cox regression to estimate the hazard rate ratios (HR) and 95% CIs for overall survival (OS) and event-free survival (EFS), adjusting for sex, NCCN-IPI, comorbidity, and rituximab treatment. Results: Approximately half of the patients had Hgb levels below the lower limit of normal. Compared to patients with Hgb levels above the mean, an inferior OS was directly correlated with lower pretreatment Hgb within the predefined groups (HR=1.23, HR=1.51, and HR=2.05, respectively). These findings were validated in the MER. Conclusion: Based on multivariable analysis, lower pretreatment Hgb, even within the normal range but below the mean, added prognostic information to established indices such as the NCCN-IPI and the Charlson comorbidity index. [ABSTRACT FROM AUTHOR]
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- 2019
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3. Real world data on rituximab maintenance therapy after frontline immunochemotherapy in grade 1–3a follicular lymphoma.
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Bech, Rie S., Nielsen, Kasper L., Larsen, Thomas S., Bentzen, Hans H., Lynggaard, Line S., Do, Trung H., Brændstrup, Peter, Brady, Jessica, Mikhaeel, N. George, Dybkær, Karen, Johnsen, Hans E., Jensen, Paw, Bøgsted, Martin, and El‐Galaly, Tarec C.
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RITUXIMAB ,LYMPHOMAS ,MEDICAL records ,CANCER chemotherapy ,ANTINEOPLASTIC agents - Abstract
The article examines impact of frontline rituximab maintenance for follicular lymphoma. Patients who had been consolidated with radioimmunotherapy or high-dose treatments were excluded from the study. The researchers evaluated the medical records and statistical tests were conducted by making use of R software.
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- 2018
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4. Uterine, but not ovarian, female reproductive organ involvement at presentation by diffuse large B-cell lymphoma is associated with poor outcomes and a high frequency of secondary CNS involvement.
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El ‐ Galaly, Tarec Christoffer, Cheah, Chan Y., Hutchings, Martin, Mikhaeel, Nabegh George, Savage, Kerry J., Sehn, Laurie H., Barrington, Sally, Hansen, Jakob W., Poulsen, Mette Ø., Smith, Daniel, Rady, Kirsty, Mylam, Karen J., Larsen, Thomas S., Holmberg, Staffan, Juul, Maja B., Cordua, Sabrina, Clausen, Michael R., Jensen, Kristina B., Bøgsted, Martin, and Johnsen, Hans E.
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B cells ,LYMPHOMAS ,UTERUS ,POSITRON emission tomography ,CENTRAL nervous system ,DISEASES - Abstract
Involvement of the internal female reproductive organs by diffuse large B-cell lymphoma ( DLBCL) is uncommon, and there are sparse data describing the outcomes of such cases. In total, 678 female patients with DLBCL staged with positron emission tomography/computed tomography and treated with rituximab-containing chemotherapy were identified from databases in Denmark, Great Britain, Australia, and Canada. Overall, 27/678 (4%) had internal reproductive organ involvement: uterus ( n = 14), ovaries ( n = 10) or both ( n = 3). In multivariate analysis, women with uterine DLBCL experienced inferior progression-free survival and overall survival compared to those without reproductive organ involvement, whereas ovarian DLBCL was not predictive of outcome. Secondary central nervous system ( CNS) involvement ( SCNS) occurred in 7/17 (41%) women with uterine DLBCL (two patients with concomitant ovarian DLBCL) and 0/10 women with ovarian DLBCL without concomitant uterine involvement. In multivariate analysis adjusted for other risk factors for SCNS, uterine involvement by DLBCL remained strongly associated with SCNS (Hazard ratio 14·13, 95% confidence interval 5·09-39·25, P < 0·001). Because involvement of the uterus by DLBCL appears to be associated with a high risk of SCNS, those patients should be considered for CNS staging and prophylaxis. However, more studies are needed to determine whether the increased risk of secondary CNS involvement also applies to women with localized reproductive organ DLBCL. [ABSTRACT FROM AUTHOR]
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- 2016
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5. Trends in hematological cancer in the elderly in Denmark, 1980–2012.
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Ocias, Lukas F., Larsen, Thomas S., Vestergaard, Hanne, Friis, Lone S., Abildgaard, Niels, and Frederiksen, Henrik
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AGE distribution , *CHRONIC lymphocytic leukemia , *LYMPHOMAS , *MULTIPLE myeloma , *ACUTE myeloid leukemia , *HEMATOLOGIC malignancies , *OLD age - Abstract
BackgroundThe number of hematological malignancies is expected to increase as the Danish population ages within the next few decades. Despite this, data on the course of hematological cancers among the oldest patients are sparse with many intervention studies focusing on younger age groups. The aim of this study is to present Danish incidence and mortality rates among older patients with non-Hodgkin lymphomas (NHL), multiple myeloma (MM), chronic lymphocytic leukemia (CLL), and acute myeloid leukemia (AML). Material and methodsNationwide population-based study presenting the incidence, prevalence and mortality rates of NHL, MM, and AML with a focus on the elderly population in Denmark during the last few decades. Data were drawn from the NORDCAN database. ResultsIncidence rates of NHL, MM, CLL and AML were 10–50 times higher among the population aged 70 years or more than among the younger population. An increasing incidence with stable or decreased mortality rates was seen mainly among elderly patients with NHL during the last few decades, leading to increased survival and a greater prevalence of patients with NHL. Increased relative survival and prevalence could also be seen among elderly patients with MM and CLL, while the trends of the incidence rates were inconclusive for these diseases. Survival among patients with AML improved most notably in those aged below 70 years leading to an increased prevalence of AML patients predominantly in this age group. ConclusionImprovements in diagnostics and treatment have led to increased survival and therefore prevalence of elderly patients with NHL, MM, CLL and AML during the past decades. [ABSTRACT FROM PUBLISHER]
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- 2016
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6. The number of extranodal sites assessed by PET/CT scan is a powerful predictor of CNS relapse for patients with diffuse large B-cell lymphoma: An international multicenter study of 1532 patients treated with chemoimmunotherapy.
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El-Galaly, Tarec Christoffer, Villa, Diego, Michaelsen, Thomas Yssing, Hutchings, Martin, Mikhaeel, Nabegh George, Savage, Kerry J., Sehn, Laurie H., Barrington, Sally, Hansen, Jakob W., Smith, Daniel, Rady, Kirsty, Mylam, Karen J., Larsen, Thomas S., Holmberg, Staffan, Juul, Maja B., Cordua, Sabrina, Clausen, Michael R., Jensen, Kristina B., Johnsen, Hans E., and Seymour, John F.
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COMPUTED tomography , *CONFIDENCE intervals , *IMMUNOTHERAPY , *LYMPHOMAS , *METASTASIS , *MULTIVARIATE analysis , *PROGNOSIS , *RISK assessment , *POSITRON emission tomography , *TUMOR classification , *RETROSPECTIVE studies ,CENTRAL nervous system tumors - Abstract
Purpose Development of secondary central nervous system involvement (SCNS) in patients with diffuse large B-cell lymphoma is associated with poor outcomes. The CNS International Prognostic Index (CNS-IPI) has been proposed for identifying patients at greatest risk, but the optimal model is unknown. Methods We retrospectively analysed patients with diffuse large B-cell lymphoma diagnosed between 2001 and 2013, staged with PET/CT and treated with R-CHOP(-like) regimens. Baseline clinicopathologic characteristics, treatments, and outcome data were collected from clinical databases and medical files. We evaluated the association between candidate prognostic factors and modelled different risk models for predicting SCNS. Results Of 1532 patients, 62 (4%) subsequently developed SCNS. By multivariate analysis, disease stage III/IV, elevated serum LDH, kidney/adrenal and uterine/testicular involvement were independently associated with SCNS. There was a strong correlation between absolute number of extranodal sites and risk of SCNS; the 144 patients (9%) with >2 extranodal sites had a 3-year cumulative incidence of SCNS of 15.2% (95% confidence interval [CI] 9.2–21.2%) compared with 2.6% (95% CI 1.7–3.5) among those with ≤2 sites ( P < 0.001). The 3-year cumulative risks of SCNS for CNS-IPI defined risk groups were 11.2%, 3.1% and 0.4% for high-, intermediate- and low-risk patients, respectively. All risk models analysed had high negative predictive values, but only modest positive predictive values. Conclusions Patients with >2 extranodal sites or high-risk disease according to the CNS-IPI should be considered for baseline CNS staging. Clinical risk prediction models suffer from limited positive predictive ability, highlighting the need for more sensitive biomarkers to identify patients at highest risk of this devastating complication. [ABSTRACT FROM AUTHOR]
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- 2017
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