scholarly journals LGG-03. LONG-TERM FOLLOW UP OF TARGETED THERAPY IN PEDIATRIC LOW-GRADE GLIOMAS: THE DANA-FARBER/BOSTON CHILDREN’S EXPERIENCE

2021 ◽  
Vol 23 (Supplement_1) ◽  
pp. i31-i31
Author(s):  
Jessica Tsai ◽  
Jayne Vogelzang ◽  
Cecilia Sousa ◽  
Kee Kiat Yeo ◽  
Keith Ligon ◽  
...  

Abstract Background Pediatric low grade gliomas (pLGGs) are the most common central nervous system (CNS) tumor in children and characterized by alterations in the MAPK pathway. Standard of care is not well defined, and treatment has evolved over the last decade to include molecular targeted therapies. The impact of targeted agents on the natural history of pLGGs remains unknown. We present a retrospective review of patients receiving targeted agents integrated with molecular profiling. Methods We performed an IRB-approved, retrospective chart review of pLGGs treated with off-label use of dabrafenib, vemurafenib, everolimus, and trametinib at Dana-Farber/Boston Children’s Cancer and Blood Disorders Center from 2010 to 2020. Results Forty-nine patients were identified (dabrafenib n=9, everolimus n=27, trametinib n=10, and vemurafenib n=3). All patients receiving BRAF inhibitors harbored BRAF V600E mutation. Targeted agent was used as first-line therapy for 25% of patients, while for 31% of patients, targeted agent was second-line therapy. The median time from diagnosis to targeted therapy initiation was 4.76 years (0.10 – 23.77), median duration of targeted therapy was 0.79 years (0.01 – 4.87), median time to subsequent therapy post first-line targeted therapy was 0.2 years (0.01 – 3.33), and overall median follow-up for the entire cohort was 3.09 years (0.36 – 11.87). The 1-year, 3-year, and 5-year EFS from targeted therapy initiation was 58.0%, 32.2%, and 26.9%, respectively. Survival analyses by molecular subgroup and agent were performed. Reasons for cessation of targeted therapy included toxicities, progression, and/or planned end of therapy. Conclusions Further efforts are ongoing to perform volumetric analysis of growth rates before, during, and after treatment. While targeted molecular therapies show great promise, it will be critical to understand how these agents alter the natural history of pLGGs, particularly in the context of genomic profiling.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. e15581-e15581
Author(s):  
Tomas Buchler ◽  
Zbynek Bortlicek ◽  
Alexandr Poprach ◽  
Katerina Kubackova ◽  
Igor Kiss ◽  
...  

e15581 Background: Sequential therapy with tyrosine kinase inhibitors (TKIs) and the mTOR inhibitor everolimus has been proposed for mRCC. The aim of the present retrospective analysis was to compare the efficacy of everolimus used after one versus two prior TKIs and to assess the progress of a defined cohort of patients (pts) through sequential lines of therapy. Methods: In the national database of mRCC pts treated with targeted agents 368 pts received everolimus as the 2nd (N=269) or 3rd (N=99) targeted agents following TKIs sunitinib or sorafenib. Survival was calculated using the Kaplan-Meier method, and the differences were assessed using the Log-rank test. Furthermore, the treatment course was evaluated in 331 mRCC pts starting 1st line therapy with sunitinib or sorafenib in 2010. The data cut-off date was October 8, 2012. Results: Progression-free survival (PFS) for everolimus in the 2nd versus the 3rd line of targeted therapy was 6.5 months (95% confidence interval [95% CI] 5.3-7.7 months) versus 6.1 months (95% CI 4.0-8.3 months), respectively (P=0.159). The incidence and profile of adverse events were similar in both lines. PFS from the start of the first targeted agent to progression on the third targeted agent was similar for pts receiving three lines of therapy using the TKI-TKI-mTOR (N=99) and TKI-mTOR-TKI (N=17) sequence: 28.5 months (95% CI 25.2-31.7 months) versus 27.2 months (95% CI 24.0-30.4 months), respectively (P=0.281). The median follow-up for the initial cohort of 331 pts treated with sunitinib or sorafenib was 20.1 months. 152 pts (46%) subsequently received a 2nd line therapy, and 82 pts (25%) died before reaching the 2nd line. Of the 152 pts receiving the 2nd line therapy, only 38 pts (11%) went on to the 3rd line, and 46 pts (14%) died before reaching the 3rd line of therapy. The remaining pts still continued on 1st line (N=50; 15%) or 2nd line therapy (N=34; 10%), were lost to follow-up (N=30; 9%), or were alive but not receiving antineoplastic treatment (N=51; 15%). Conclusions: Everolimus has similar efficacy and toxicity whether used in the 2nd or the 3rd line of targeted therapy for mRCC. A minority of mRCC pts starting the 1st line targeted treatment can be expected to reach the 3rd line therapy.


2021 ◽  
Vol 10 (2) ◽  
pp. 114-117
Author(s):  
Md Rezaul Karim Chowdhury ◽  
Md Haroon Ur Rashid ◽  
Md Mahbub Hossain ◽  
Shafayet Hossain Riyan

Evans syndrome is an uncommon haematological disorder characterised by autoimmune haemolytic anaemia (AIHA), immune thrombocytopenia (ITP) and/or immune neutropenia. It may occur in all ethnic groups, all ages and has no sex predilection. The direct antiglobulin test (DAT) is almost invariably positive. This condition generally runs a chronic course and is characterised by frequent exacerbations and remissions. Corticosteroids and/or intravenous immunoglobulin (IVIG) are the most commonly used first line therapy. Here we report a case of a female who presented with severe shortness of breath, palpitation and low grade fever and on examination she was found severely pale and mildly icteric. Her CBC and PBF showed pancytopenia. Indirect bilirubin and LDH were raised and direct Coomb’s test was positive. She was labeled as a case of Evans syndrome and responded to oral prednisolone. On subsequent follow-up her haematological profiles remained normal. J Enam Med Col 2020; 10(2): 114-117


2020 ◽  
Vol 12 ◽  
pp. 175883592093609
Author(s):  
Jiebai Zhou ◽  
Ning Ding ◽  
Xiaobo Xu ◽  
Yong Zhang ◽  
Maosong Ye ◽  
...  

Background: Lung cancer is now the leading cause of cancer mortality worldwide for both men and women. In non-small cell lung cancer (NSCLC), matching a specifically targeted drug to the identified driver mutation in each patient resulted in dramatically improved therapeutic efficacy, often in conjunction with decreased toxicity. Mutations in HER2 have been identified as an oncogenic driver gene for NSCLC. This retrospective study was conducted to better understand the clinical outcomes of advanced lung cancer patients harboring HER2 mutations treated with chemotherapies and HER2-targeted agents, as well as the optimal clinical choice. Methods: Patients who were diagnosed with advanced lung cancer (stage IIIB/IV) and had undergone molecular testing at Zhongshan Hospital, Fudan University, Shanghai, China from April 2016 to December 2018 were reviewed. For patients that had HER2 mutant advanced lung cancer, we analyzed their clinical and molecular features and clinical outcomes, including overall survival (OS), progression-free survival (PFS), disease control rate (DCR) and objective response rate (ORR). Results: We identified 44 patients harboring HER2 mutations. Their median age was 56 years, with the majority being women ( n = 24), never smokers ( n = 32), and having the adenocarcinoma genotype ( n = 42). Amongst the HER2 mutations present, a 12 base pair in-frame insertion in exon 20 with p.771insAYVM was the most common subtype in patients with known detail variants of HER2 mutation (9/27). The median OS from the date of advanced disease diagnosis was 9.9 months with 24 deaths, and a median follow-up of 12.7 months for survivors. For patients with a known HER2 exon 20 insertion mutation, OS tended to be superior (though not statistically) in the first-line HER2-TKI group to that in the group receiving chemotherapy (10.8 versus 9.8 months, p = 0.40). However, patients that received first-line chemotherapy had a median PFS of 5.9 months, numerically longer than that of the HER2-TKI group (4.6 months, p = 0.63). Patients who received HER2-targeted therapy as first-line therapy had an improved OS (10.8 versus 10.1 months, p = 0.30) and PFS (4.6 versus 2.8 months, p = 0.36) relative to those who received HER2-targeted therapy as subsequent-line therapy, although they did not meet the threshold for statistical significance. Furthermore, patients with AYVM mutation were associated with poor clinical outcomes. Conclusion: Pemetrexed-based chemotherapy remains an important component of care for patients with HER2-mutant NSCLC. HER2-TKI given as an initial therapy may bring more clinical benefits than when given as a subsequent-line therapy. Refining the patient population based on patterns of HER2 variants may help improve the efficacy of anti- HER2 treatment in lung cancer. Developing highly effective and tolerable HER2-targeted agents is urgently needed for this population.


Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 4084-4084
Author(s):  
Damianos Sotiropoulos ◽  
Argiris Symeonidis ◽  
Vassilios K Papadopoulos ◽  
Panagiotis Tsirigotis ◽  
Maria Pagoni ◽  
...  

Abstract The Greek Registry of Essential Thrombocythemia (ET) is implemented under the auspices of the Acute Leukemias and Myeloproliferative Neoplasms Study Group of the Hellenic Society of Haematology. Hereby, we present results after four years of retrospective data collection. The total number of patients included is 1078, from 14 Greek sites; ET was diagnosed between 1982 and 2012. The male to female ratio is 1:1.19. Median age at diagnosis is 63 years, median platelet counts (PLT) 826x109/L, hemoglobin (Hb) 13.6 g/dL, white blood cell counts (WBC) 9.4x109/L. The presenting symptoms were a thrombotic event in 6.8%, a hemorrhagic event in 1.5% of patients. In 79.8% of the patients the diagnosis was made after incidental finding of elevated platelet counts on routine laboratory investigation. Molecular studies were performed in 677 patients and 42.8% of them were positive for the JAK2-V617F mutation. The presence of JAK2-V617F mutation (mutant vs wild type allele) was associated with baseline platelet counts (757.5 vs 882 x109/L) and hemoglobin levels (14.4 vs 13.4 g/dL), p<0.001 (Mann-Whitney U-test). A history of thrombosis or hemorrhage was present in 18.6% and 6.6% of patients respectively. Chi-square test was performed to assess whether platelet counts at diagnosis (<600, 600-800, >800 x109/L), Hb<13.8g/dL, WBC>9.5x109/L, or splenomegaly are associated with thrombotic or hemorrhagic events in the past medical history or during the follow-up of ET patients. The only statistically significant difference was observed in the occurrence of thrombosis during the follow up: 10.1% of those with PLT between 600-800 x109/L, 4.5% in PLT<600 and 5.6% in PLT>800 x109/L. To assess for possible confounders the multivariable logistic regression model was used, with independent variables the PLT at diagnosis, age >60 years, history of thrombosis and first line therapy. The history of thrombosis was the only statistically significant risk factor with odds ratio (OR) 3.9 (p=0.0005), while PLT was not a statistically significant risk factor (OR=2.5, p=0.074). Antiplatelet therapy was offered in 80% of patients (aspirin in 59.1%, clopidogrel in 4.7%, and combination therapy in 6.5%); anticoagulants (low molecular weight heparin or warfarin) were given in 2.3%, while the remaining 17.8% of patients did not receive any antithrombotic therapy. During the first six months post diagnosis, 31.6% of patients did not need any cytoreductive therapy. The rest 68.4% of the patients received first line therapy (hydroxyurea 80.6%, anagrelide 11.4% and interferon 5.4%). The response rates were 89.9%, 82.1% and 85.7%, respectively. Second-line therapy was received by 25.8% of the patients (hydroxyurea 23%, anagrelide 44.6%, interferon 9.5%), while the off-label combination of hydroxyurea and anagrelide was administered to 21.2% of the patients. Of the 852 patients treated with hydroxyurea as first line therapy, 12.1% switched to anagrelide and 1.2% to interferon. Of those initially treated with anagrelide, 27.6% switched to hydroxyurea and 8.2% to interferon. During the follow up phase, secondary solid tumor occurred in 4% and hematological malignancy in 2.7% of the patients. The aim of the registry and the subsequent data analysis is to convey the practice of managing the disease. Moreover, useful conclusions can be reached regarding to the patients’ responsiveness to therapy and the minimization of thrombotic and hemorrhagic adverse events. Disclosures: Spanoudakis: Genesis Hellas: Honoraria. Kotsianidis:Genesis Hellas: Honoraria, Research Funding.


Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 333-333 ◽  
Author(s):  
Jurinovic Vindi ◽  
Robert Kridel ◽  
Annette M Staiger ◽  
Monika Szczepanowski ◽  
Heike Horn ◽  
...  

Abstract Background: Follicular lymphoma (FL) is the second most common nodal lymphoma worldwide and remains incurable for most patients (pts). FL is recognized to be a highly heterogeneous disease and a subset of pts experience remarkable poor outcome. In a recent study, 19-26% of pts receiving first-line R-CHOP experienced progression of disease (POD) within 24 months after diagnosis and had a 5-year (yr) overall survival (OS) of only 34-50%, as compared to a 5-yr OS of 90-94% for pts without POD within 24 months (Casulo et al., J Clin Oncol 2015). Consequently, event-free survival at 12 (EFS12) and 24 months (EFS24) have been suggested as novel surrogate endpoints for poor overall survival in clinical trials and useful for patient counseling (Maurer et al., ASH 2014). We have previously shown that a clinicogenetic risk model (m7-FLIPI) that includes the mutation status of seven genes (EZH2, ARID1A, MEF2B, EP300, FOXO1, CREBBP, and CARD11), the FL International Prognostic Index (FLIPI), and the Eastern Cooperative Oncology Group (ECOG) performance status, improves risk stratification for failure-free survival (FFS) and OS in pts with FL receiving first-line immunochemotherapy (Pastore et al., Lancet Oncology 2015). An online tool is available at: http://www.glsg.de/m7-flipi. It would be advantageous to determine prognosis prior to front-line therapy rather than after POD. Thus, we aimed to investigate the predictive utility of the m7-FLIPI for early POD. Patients and Methods: Clinical and mutation data were available from two independent cohorts: 151 pts who received R-CHOP and IFN maintenance as part of a randomized trial of the German Low-Grade Lymphoma Study Group (GLSG), and 107 pts from a population-based registry of the British Columbia Cancer Agency (BCCA) who received R-CVP. Among the latter, 93 (87%) received R-maintenance by intention to treat. All pts had symptomatic, advanced stage or bulky disease considered ineligible for curative radiotherapy, and a biopsy specimen obtained </=12 months prior to the initiation of first-line therapy. POD was defined as progression, relapse, or death due to any cause. POD12 and POD24 were defined based on POD status at 12 and 24 months after therapy initiation, respectively. Logistic regression analysis was performed to assess if m7-FLIPI was predictive of early POD using the statistical software R (version 3.1.2). Results: In the GLSG cohort, median age was 57 yrs (range 27-77), 51% had high-risk FLIPI, and 5-yr failure-free survival (FFS) and OS rates were 66% and 83%, respectively (median follow-up for OS 7.7 yrs). In the BCCA cohort, median age was higher (62 yrs, 37-83), but high-risk FLIPI was similarly frequent (50%); 5-yr FFS and OS rates were 58% and 74%, respectively (median follow-up for OS 6.7 yrs). A total of 43 GLSG (28%) and 24 BCCA pts (22%) were classified as high-risk by m7-FLIPI, with a 5-yr OS of 65% and 42%, respectively. In the GLSG cohort, 8 (5%) and 29 pts (19%) had POD within 12 and 24 months, respectively, 4 and 10 pts were censored before POD12 and POD24 (table). High-risk m7-FLIPI pts were significantly more likely to experience early POD with an Odds Ratio (OR) of 20.80 (95% confidence interval (CI) 3.53-395.96; p=0.0052) for POD12 and 6.33 (95% CI 2.67-15.69; p<0.0001) for POD24. Likewise, in the BCCA cohort, 16 (15%) and 28 pts (26%) experienced POD12 and POD24, respectively (table). The OR for high-risk m7-FLIPI pts was 4.69 (95% CI 1.52-14.65; p=0.0068) for POD12, and 5.36 (95% CI 2.03-14.60; p=0.0008) for POD24. In the GLSG and BCCA cohorts, the m7-FLIPI had a sensitivity of 88% and 50%, a specificity of 75% and 82%, a positive predictive value (PPV) of 16 and 33%, and a negative predictive value (NPV) of 96% and 90% to predict POD12. For POD24, sensitivity was 62% and 46%, specificity 79% and 86%, PPV 42% and 54%, and NPV 82% and 82%, respectively. Conclusion: We conclude that patients classified as high-risk m7-FLIPI are highly enriched among those with early progression of disease. However, approximately one-half of patients with progression by 24 months after therapy initiation are classified as low-risk m7-FLIPI. Thus, further efforts are needed to refine the m7-FLIPI and thereby capture additional cases that may benefit from innovative first-line approaches. Table. Population m7-FLIPI N POD12 POD24 GLSG Total 151 8/147* 29/141* High-risk 43 7 18 Low-risk 108 1 11 BCCA Total 107 16/107 28/107 High-risk 24 8 13 Low-risk 83 8 15 *Pts censored were removed Disclosures Ansell: Bristol-Myers Squibb: Research Funding; Celldex: Research Funding.


2010 ◽  
Vol 10 ◽  
pp. 586-589 ◽  
Author(s):  
Kelvin A. Moses ◽  
John J. DeCaro ◽  
Adeboye O. Osunkoya ◽  
Muta M. Issa

Tubulocystic carcinoma (TC) is a rare primary renal tumor that has been recently described in the pathology literature. Formerly termed low-grade collecting duct carcinoma, further molecular analysis has shown TC to be a distinct entity that is separate from the more aggressive collecting duct carcinoma. Previous series have described the microscopic and immunohistochemical features of this tumor. We describe the natural history of this tumor in a patient who was followed with active surveillance for several years and then underwent partial nephrectomy. Long-term follow-up has shown no evidence of disease. A review of the pertinent literature is performed.


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