scholarly journals Imaging of Chemokine Receptor-4 Targeted PET/CT with 68Ga-Pentixafor in Non-Hodgkin Lymphoma: Comparison to 18F-FDG

2020 ◽  
Author(s):  
Qingqing Pan ◽  
Yaping Luo ◽  
Yan Zhang ◽  
Long Chang ◽  
Ji Li ◽  
...  
Keyword(s):  
T Cell ◽  
B Cell ◽  
Hodgkin Lymphoma ◽  
Marginal Zone ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
T Cell Lymphoma ◽  
Lymphoplasmacytic Lymphoma ◽  
Non Hodgkin Lymphoma ◽  
Pet Ct

Abstract Background: In order to study the CXCR4 expression with 68Ga-Pentixafor PET in different types of non-Hodgkin lymphoma, we performed a retrospective study to describe the 68Ga-Pentixafor PET/CT imaging in a spectrum of lymphomas and to compare it with 18F-FDG PET/CT. Results: Twenty-seven patients with newly diagnosed non-Hodgkin lymphoma were recruited retrospectively. 68Ga-Pentixafor PET showed increased radioactivity in lymphoplasmacytic lymphoma (n = 8), marginal zone lymphoma (n = 4), diffuse large B cell lymphoma (n = 3), follicular lymphoma (n = 2), mantle cell lymphoma (n = 1), unclassified indolent B cell lymphoma (n = 3) and enteropathy associated T cell lymphoma (n = 3). However, peripheral T cell lymphoma, not otherwise specified (n = 1), and NK/T cell lymphoma (n = 2) were not avid for 68Ga-Pentixafor. In comparison to 18F-FDG PET, 68Ga-Pentixafor PET demonstrated more extensive disease and higher radioactivity in lymphoplasmacytic lymphoma and marginal zone lymphoma. Conclusion: CXCR4 expression varies in different types of non-Hodgkin lymphoma. Overexpression of CXCR4 was detected with 68Ga-Pentixafor PET/CT in lymphoplasmacytic lymphoma, marginal zone lymphoma, diffuse large B cell lymphoma, follicular lymphoma, mantle cell lymphoma, unclassified indolent B cell lymphoma, and enteropathy associated T cell lymphoma.

scholarly journals Preliminary evidence of imaging of chemokine receptor-4 targeted PET/CT with [68Ga]pentixafor in non-Hodgkin lymphoma: comparison to [18F]FDG

2020 ◽  
Author(s):  
Qingqing Pan ◽  
Yaping Luo ◽  
Yan Zhang ◽  
Long Chang ◽  
Ji Li ◽  
...  
Keyword(s):  
T Cell ◽  
B Cell ◽  
Marginal Zone ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Marginal Zone Lymphoma ◽  
Lymphoplasmacytic Lymphoma ◽  
Non Hodgkin Lymphoma ◽  
Pet Ct ◽  
18F Fdg

Abstract Background: In order to study the CXCR4 expression with [68Ga]pentixafor PET in different types of non-Hodgkin lymphoma, we performed a retrospective study to describe the [68Ga]pentixafor PET/CT imaging in a spectrum of lymphomas and to compare it with [18F]FDG PET/CT. Results: Twenty-seven patients with newly diagnosed non-Hodgkin lymphoma were recruited retrospectively. [68Ga]pentixafor PET showed increased radioactivity in lymphoplasmacytic lymphoma (n = 8), marginal zone lymphoma (n = 4), diffuse large B cell lymphoma (n = 3), follicular lymphoma (n = 2), mantle cell lymphoma (n = 1), unclassified indolent B cell lymphoma (n = 3) and enteropathy associated T cell lymphoma (n = 3). However, peripheral T cell lymphoma, not otherwise specified (n = 1), and NK/T cell lymphoma (n = 2) were not avid for [68Ga]pentixafor. In comparison to [18F]FDG PET, [68Ga]pentixafor PET demonstrated more extensive disease and higher radioactivity in lymphoplasmacytic lymphoma and marginal zone lymphoma. Conclusion: CXCR4 expression varies in different types of non-Hodgkin lymphoma. Overexpression of CXCR4 was detected with [68Ga]pentixafor PET/CT in lymphoplasmacytic lymphoma, marginal zone lymphoma, diffuse large B cell lymphoma, follicular lymphoma, mantle cell lymphoma, unclassified indolent B cell lymphoma, and enteropathy associated T cell lymphoma. The uptake of [68Ga]pentixafor was higher than [18F]FDG in lymphoplasmacytic lymphoma and marginal zone lymphoma.

Clinical Applications of the Genomic Landscape of Aggressive Non-Hodgkin Lymphoma

2017 ◽  
Vol 35 (9) ◽  
pp. 955-962 ◽  
Author(s):  
Andrea B. Moffitt ◽  
Sandeep S. Dave
Keyword(s):  
T Cell ◽  
B Cell ◽  
Hodgkin Lymphoma ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Large Cell ◽  
T Cell Lymphoma ◽  
Adult T Cell Leukemia ◽  
Non Hodgkin Lymphoma ◽  
T Cell Lymphomas

In this review, we examine the genomic landscapes of lymphomas that arise from B, T, and natural killer cells. Lymphomas represent a striking spectrum of clinical behaviors. Although some lymphomas are curable with standard therapy, the majority of the affected patients succumb to their disease. Here, the genetic underpinnings of these heterogeneous entities are reviewed. We consider B-cell lymphomas, including Burkitt lymphoma, diffuse large B-cell lymphoma, Hodgkin lymphoma, and primary mediastinal B-cell lymphoma. We also examine T-cell lymphomas, including anaplastic large-cell lymphoma, angioimmunoblastic T-cell lymphoma, cutaneous T-cell lymphoma, adult T-cell leukemia/lymphoma, and other peripheral T-cell lymphomas. Together, these malignancies make up most lymphomas diagnosed around the world. Genomic technologies, including microarrays and next-generation sequencing, have enabled a better understanding of the molecular underpinnings of these cancers. We describe the broad genomics findings that characterize these lymphoma types and discuss new therapeutic opportunities that arise from these findings.

Comparison of Autologous Vs. Allogeneic Stem Cell Transplantation for Non-Hodgkin Lymphoma

Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 2036-2036
Author(s):  
Nishitha M. Reddy ◽  
Olalekan O Oluwole ◽  
John P Greer ◽  
David S Morgan ◽  
Stacey Goodman ◽  
...  
Keyword(s):  
Stem Cell ◽  
T Cell ◽  
Stem Cell Transplantation ◽  
B Cell ◽  
Hodgkin Lymphoma ◽  
Cell Lymphoma ◽  
Conditioning Regimen ◽  
B Cell Lymphoma ◽  
T Cell Lymphoma ◽  
Non Hodgkin Lymphoma

Abstract Abstract 2036 Background: Stem cell transplantation (SCT) is a common indication for patients with Non-Hodgkin lymphoma (NHL). Auto-SCT is recommended for patients with relapsed NHL or as consolidative therapy in first remission. Allo-SCT is reserved for pts with either relapsed or primary refractory disease. The outcomes of these pts in large prospective studies are lacking and current recommendations and timing of selection of auto vs. allo-SCT are influenced by variety of factors including physician bias. Transplant outcomes of auto or allo-SCT have not been elucidated as a single cohort. Methods: We report a retrospective analysis of 270 pts with NHL who underwent auto-SCT or allo-SCT between January 2000- December 2010 after obtaining institutional IRB approval. Data were analyzed using SPSS.19. Results: Of the 270 pts, 238 patients underwent SCT for B-cell lymphoma (178 auto, 60 allo-SCT), and 32 for T-cell lymphoma (21 auto and 11 allo-SCT). Fifteen pts (6%) received prior auto-SCT. The median age of transplant was 52 years for the entire group. For those who underwent allo-SCT, median age was 47 (range 22–65 yrs) and 54 yrs (range 22–77) for auto-SCT. One hundred seventy (62%) were male. Majority of pts (76%) had advanced stage disease (stages III and IV). Fifty four (20%) received radiation therapy either before or after transplantation. The median number of prior regimens for allo-SCT were 3 (range 1–5) and 2 for auto-SCT (range 1 to 4). Within the allo-SCT group (n=71), 45 received matched-related donor transplants, and 26 unrelated donor transplants; majority of pts (n=47) received reduced intensity conditioning regimen. The auto-SCT group predominantly received CBV as their conditioning regimen. Median time from diagnosis to allo-SCT or auto-SCT was 1.4 yrs (range 0.32–13.1 yrs) and 1.69 (range 0.38–13.7 yrs), respectively. The median follow up time for the entire cohort was 6.2 yrs. The overall survival (OS) rates for the B- cell and T-cell NHL were 58% and 50% respectively (allo-SCT 51% vs. 54% for B and T-cell NHL, and auto-SCT 60% vs. 47% for B and T-cell lymphoma, respectively) (p=0.26). Within the allo-SCT group the relapse and non-relapse mortalities were 45% and 16%, respectively. In the auto-SCT group, the relapse and non-relapse mortality were 46% and 7% respectively. In B-cell lymphoma the relapse rate was 48% and 45% for auto and allo-SCT respectively (p=0.80). In T-cell lymphoma the relapse rate was 40% and 45% for auto and allo-SCT (p=0.67). Multivariate analysis of pts receiving auto vs. allo-SCT in NHL will be presented. Conclusions: We conclude that in this highly selected patient population with otherwise minimal comorbidities but chemo-sensitive aggressive lymphomas, about 50% of patients achieve long term survival after either an auto or allo-SCT approach. Despite recent evidence, there are intricate difficulties in patient selection for allo vs. auto-SCT and outcome of either approach is not satisfactory. Post transplant relapse is the most common cause of post-SCT failure. Tandem auto followed by allo-SCT and maintenance strategies need to be explored. We propose a larger prospective analysis on transplant outcomes in both B and T-cell lymphoma and improve strategies to prevent relapses after SCT. Disclosures: No relevant conflicts of interest to declare.

A Phase II Clinical Study of Rituximab and High-Dose Biweekly THP-COP (Pirarubicin, Cyclophosphamide, Vincristine and Predonisolone) with G-CSF for Non-Hodgkin Lymphoma: Results of a Multicentric Study of NMLSG (Niigata Malignant Lymphoma Study Group).

Blood ◽  
2005 ◽  
Vol 106 (11) ◽  
pp. 4734-4734
Author(s):  
Jun Takizawa ◽  
Sadao Aoki ◽  
Kazue Takai ◽  
Tohri Kurasaki ◽  
Keiichiro Honma ◽  
...  
Keyword(s):  
Clinical Study ◽  
T Cell ◽  
B Cell ◽  
Hodgkin Lymphoma ◽  
Phase Ii ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
High Dose ◽  
Histological Subtypes ◽  
Non Hodgkin Lymphoma

Abstract Introduction CHOP chemotherapy has been accepted as the standard treatment for patients with non-Hodgkin lymphoma (NHL), but in some histological or clinical subtypes the results are not satisfactory. We have shown the efficacy and safety of high-dose biweekly THP-COP with G-CSF support (HDBW-TCOP(G)) for NHL. In this regimen, we choose pirarubicin in stead of doxorubicin because it was proven high efficacy against NHL and the lower toxicity than doxorubicin. Recently, the combination of rituximab and standard CHOP has been shown to have a synergistic effect for NHL. We performed a phase II multicentric clinical study to assessed the feasibility and toxicity of the combination chemotherapy of rituximab and HDBW-TCOP(G) (HDBW-R-TCOP(G)) compared with those of HDBW-TCOP(G). Patients and methods Between August 1998 and December 2004, Forty-one Japanese patients with previously untreated NHL from whom informed consent was obtained were included in this study. Median age was 45 (range 19–63) years. There were 19 males and 22 females. According to WHO-classification diagnoses, histological subtypes included follicular lymphoma (FL) 15(37%); nodal marginal zone B-cell lymphoma (NMZBCL) 2(5%); mantle cell lymphoma (MCL) 3(7%); anaplastic large cell lymphoma (ALCL) 1(2%), diffuse large B-cell lymphoma (DLBCL) 18(44%); peripheral T-cell lymphoma (PTCL) 1(2%), angioimmunoblastic T-cell lymphoma (AILT) 1(2%). Of 41 patients, one patient was stage 1, stage 2, 11 stage 3 and 16 stage 4. International prognostic index (IPI) included L 6; LI 22; HI 7; H 6. HDBW-TCOP(G) consisted of pirarubicin 70 mg/m2 on day 1; cyclophosphamide 1000 mg/m2 on day 1; vincristine 1.4 mg/m2 on day 1; predonisolone 50 mg/m2 orally from day 1 to 5; lenograstim 2.0 μg/kg/day from day 3. Fifteen patients who enrolled after rituximab was approved in Japan received therapy combined HDBW-TCOP(G) with rituximab 375mg/ m2 on day -2 (HDBW-R-TCOP(G)). Six cycles were administered at intervals of two weeks. Results Of the 41 patients treated, 32 (78.0%) achieved a complete remission (CR) and nine (22.0%) achieved a partial remission (PR), for an overall response rate of 100%. After median follow-up of 36 months (range 2.9– 81.8), progression free survival (PFS) and overall survival (OS) were 68.2% and 97.5%, respectively. PFS was 90.9% for HDBW-R-TCOP(G), and 69.5% for HDBW-TCOP(G), but no significant differences was found among two regimen. There was no significant difference in the PFS and OS between aggressive and indolent histological subtypes. 76% of patients developed Grade4 leukopenia (according to NCI criteria) but no patients experienced febrile neutropenia. 15% of patients developed G4 anemia and 17% of patients G4 thrombocytopenia. Other adverse effects were minimal. Conclusion Both HDBW-TCOP(G) and HDBW-R-TCOP(G) are feasible for NHL with acceptable toxicity. The excellent result suggests they are effective for aggressive NHL patients with poor prognostic factors and advanced stage indolent NHL.

Clinical Outcome of 119 Children with Non-Hodgkin Lymphoma Treated in a Single Center in China

Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 5299-5299
Author(s):  
Yonghong Zhang ◽  
Ling Jin ◽  
Jing Yang ◽  
Yanlong Duan ◽  
Chunjv Zhou ◽  
...  
Keyword(s):  
Bone Marrow ◽  
T Cell ◽  
B Cell ◽  
Hodgkin Lymphoma ◽  
Nk Cell ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Lymphoblastic Lymphoma ◽  
Non Hodgkin Lymphoma ◽  
Pathologic Classification

Abstract One hundred and nineteen children with non-Hodgkin lymphoma were treated between February 2003 and December 2006 in Beijing Children’s Hospital on BCH-2003-NHL protocol. The diagnosis was made by histopathology of the biopsied tissue and/or bone marrow, and disease was classified according to WHO-2001 pathologic classification. We applied modified LMB89 protocol to cases with B-cell lymphoma; modified BFM90-ALL protocol for lymphoblastic lymphoma and cutaneous T-cell/NK cell lymphoma; and modified BFM90-ALCL protocol for anaplastic large-cell lymphoma (ALCL). There were 50 cases (42%) of B cell lymphoma including 32 cases of Burkitt¡’s lymphoma, 10 cases of Burkitt-like lymphoma and 8 cases of diffuse large B cell lymphoma; 44 cases (37%) of lymphoblastic lymphoma; 19 cases (16%) of ALCL; and 6 cases (5%) of cutaneous T-cell/NK cell lymphoma. The 85 boys and 34 girls (ratio, 2.5:1) ranged in age from 2 to 15 years (median, 7.8 years) at diagnosis. B cell lymphoma typically presented as abdomen mass and acute abdomen; nasopharynx and tonsil were also common sites of involvement. Lymphoblastic lymphoma generally presented with mediastinal mass and bone marrow involvement. There was no typical presentation for ALCL. According to the St. Jude staging system, 19 cases had stage I–II, and 94 cases stage III–VI diseases (exclude 6 cases of cutaneous T-cell/NK cell lymphoma). Seven cases had CNS involvement and 25 cases involved bone marrow. The treatment duration was 2 to 8 months for B-cell lymphoma, 2.5 to 3 years for lymphoblastic lymphoma and 1 to 1.5 years for ALCL. The follow-up rate was 100% and median observation period was 23 months. The overall survival (OS) at 3 years was 90.7% and the 3-year event-free survival (EFS) estimate was 82.3%. For B-cell lymphoma, 3-year OS was 88.68% and 3-year EFS was 81.8%. For lymphoblastoma lymphoma, the rates were 89.3% and 69.4%, respectively. All cases of ALCL are alive with on undergoing treatment for relapse. Patients with ALCL achieved the best 3-year OS (100%) and had 3-year EFS of 94.2%. Grade 3 or 4 bone marrow suppression occurred in 97.5% of patients with B-cell lymphoma, 100% of those with lymphoblastic lymphoma and 89.5% of cases with ALCL. As of to date, 11 patients have died, the causes of death include infection (n=4), abandonment of therapy (n=6) and relapse (n=1). Univarate analysis showed that stage IV disease, failure to achieve complete remission after 3 months of treatment, and bulky mass are were associated with poor prognosis £all P values <0.05£©. In summary, we have achieved excellent treatment results using modified international protocols. Infection and financial problem remained the main reasons of treatment failure.

Clinicopathologic features and treatment outcome of primary intestinal non-Hodgkin lymphoma: A single center experience.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. e19523-e19523
Author(s):  
Wei-Hsun Hsu ◽  
Kun-Huei Yeh ◽  
Chung-Wu Lin ◽  
Chih-Hung Hsu ◽  
Ann-Lii Cheng ◽  
...  
Keyword(s):  
Small Intestine ◽  
Treatment Outcome ◽  
T Cell ◽  
B Cell ◽  
Hodgkin Lymphoma ◽  
Cell Lymphoma ◽  
Univariate Analysis ◽  
B Cell Lymphoma ◽  
Clinicopathologic Features ◽  
Non Hodgkin Lymphoma

e19523 Background: Primary intestinal non-Hodgkin lymphoma (NHL) is a rare but heterogeneous disease in East Asia. However, the benefit of multidisciplinary treatment is still in debate. We characterized the clinicopathologic features, and treatment outcome in a single institute database. Methods: Patients with NHL primarily involving the intestine and treated during 1992 to 2008 were selected from the Cancer Registry of National Taiwan University Hospital. The medical charts and pathology records were carefully reviewed. Results: There were 64 men and 17 women with a median age of 51.5 years. Sites involved were colon/rectum (53.2%), small intestine (30.9%), and duodenum (13%). Histopathology subclassification included diffuse large B-cell lymphoma (DLBCL) (61.7%), mucosa-associated lymphoid tissue lymphoma (11.1%), Burkitt’s lymphoma (8.6%), T cell lymphoma (6.2%), follicular lymphoma (2.5%), mantle cell lymphoma (1.2 %) and others (8.6%). Ann Arbor stage IE to IIE accounted for 61.7%, whereas lower IPI score (1-2) were 54.8%. Among them, 27 patients received surgery plus chemotherapy, 60 received chemotherapy, and 4 had radiotherapy. At average follow-up of 48.7 months, 5 year survival rate were 59%, 43% and 51% for colon/rectum, small intestine, and duodenal NHL, respectively (p=0.45). Surgery plus chemotherapy versus chemotherapy alone showed no survival benefit in lower IPI group (p=0.682) nor in higher IPI (3-5) group (p=0.939). A trend of better median overall survival (mOS) was seen in rituximab group than in non-rituximab group in DLBCL subtypes (not reach vs. 39.8mo, p=0.075). In univariate analysis, stage III/IV (p=0.008), IPI score greater than 2 (p=0.011), and T cell histology (p<0.001) were significant prognostic factors for poor OS. In multivariate analysis, T cell histology remained the independent prognostic factor for inferior OS (p<0.001, HR: 20.3, 95% CI: 5.1-80.4). Conclusions: Although B cell NHL was the majority of primary intestinal NHL in our institute, T cell histology has significant inferior survival. Chemotherapy is still the backbone of treatment for primary intestinal NHL. The benefit of rituximab to intestinal DLBCL needs further confirmation.

scholarly journals Lymphoma of the Uvula: Clinical, Morphological, Histopathological, and Genetic Characterization. A Nationwide Danish Study From 1980 to 2019

2021 ◽  
Vol 8 ◽  
Author(s):  
Lars Iversen ◽  
Patrick Rene Gerhard Eriksen ◽  
Simon Andreasen ◽  
Erik Clasen-Linde ◽  
Preben Homøe ◽  
...  
Keyword(s):  
T Cell ◽  
B Cell ◽  
Marginal Zone ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
T Cell Lymphoma ◽  
B Cell Lymphomas ◽  
Peripheral T Cell Lymphoma ◽  
Presenting Symptoms ◽  
Danish Study

Background: In the head and neck region the uvula is a rare site for extranodal lymphomas to develop. In this national study, we present six cases and provide an overview of the current literature, characterizing the clinical and histopathological features of lymphomas involving this location.Materials and Methods: Clinical information was obtained retrospectively from patient records in a nationwide Danish study covering from 1980 through 2019. In order to validate the diagnoses, uvular tissue specimens were examined histologically and immunohistochemically and if relevant for subtyping, cytogenetic rearrangements were investigated.Results: We present six cases of lymphomas involving the uvula, of which four of the cases were diagnosed with a B-cell lymphoma (two diffuse large B-cell lymphomas, one extranodal marginal zone B-cell lymphoma and one Mantle cell lymphoma), while two were diagnosed with a T-cell lymphoma (one peripheral T-cell lymphoma and one natural killer/T-cell lymphoma). Presenting symptoms included swelling, pain and ulceration of the uvula. Treatment was comprised of radiotherapy and/or chemotherapy, with T-cell lymphomas showing a poorer outcome than B-cell lymphomas.Conclusion: Lymphoma of the uvula is rare, with few case reports being reported in the literature. The most frequent histological subtypes reported are extranodal marginal zone B-cell lymphoma and peripheral T-cell lymphoma. When encountering a swollen, painful and/or ulcerated uvula, the clinician should always consider malignancy as a possible cause. Lymphoma of the uvula is a possible diagnosis and if this is the case, there is a high risk of disseminated disease at the time of diagnosis.

scholarly journals Histo-morphologic Spectrum of Non-Hodgkin Lymphoma According to WHO Classification 2016: A Cross-Sectional Study

2018 ◽  
Vol 8 (3) ◽  
pp. 215-222
Author(s):  
Shamoli Yasmin ◽  
Wasim Selimul Haque ◽  
SK Md Jaynul Islam ◽  
Ishtyaq Ahmed ◽  
Sowkat Hossain ◽  
...  
Keyword(s):  
T Cell ◽  
B Cell ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Cross Sectional Study ◽  
T Cell Lymphoma ◽  
Cross Sectional ◽  
Female Ratio ◽  
Non Hodgkin Lymphoma ◽  
Who Classification 2016

Background: Geographic variations with regard to incidence and histological subtypes are known to occur in Non-Hodgkin lymphoma (NHL). This study was aimed to see the incidence and subtypes of NHL in a group of Bangladeshi population.Methods: This cross sectional study was carried out in Armed Forces Institute of Pathology (AFIP) Bangladesh, from 1st April 2017 to 31st March 2018. All nodal and extranodal tissues which were morphologically diagnosed as NHL were included in the study and immunohistochemistry was done for sub-classification according to WHO classification 2016. Bone marrow trephine biopsy samples were excluded.Results: Total cases: 106, mean age: 48.5 years ± 18.5 (range 2Y 9 M –82 years), male-female ratio: 2.2:1. Total subject of B cell Lymphoma (BNHL): 83 (78.3%) and T cell lymphoma (TNHL): 23 (21.7%). Among BNHL, total subjects of diffuse large B cell lymphoma (DLBCL) 50 (60%), follicular lymphoma 9 (11%), marginal zone lymphoma 8 (10%), small cell lymphoma and mantle cell lymphoma 5 (6%) each, Burkitt lymphoma 4 (5%) and B cell lymphoblastic lymphoma 2 (1.89%) in number. Among TNHL peripheral T-cell lymphoma NOS 11 (48%), anaplastic large cell lymphoma (ALCL) 5 (22%), T cell lymphoblastic lymphoma 4 (17%), and angio-immunoblastic T cell lymphoma 3 (13%) in number. Among 5 ALCL, 4 ALK positive and 1 ALK negative. Number of primary extra-nodal NHL were 29 (27%) with most common involved organ system being GIT and most common histological subtype being DLBCL.Conclusion: Quite similar pattern of age range with mean age, male to female ratio, subtypes and extra nodal NHL distribution prevailing in our subcontinent is found in our population with subtle increased incidence of TNHL indicating the necessity of further large epidemiological study.Birdem Med J 2018; 8(3): 215-222

Response to brentuximab vedotin by CD30 expression: Results from five trials in PTCL, CTCL, and B-cell lymphomas.

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 7543-7543
Author(s):  
Deepa Jagadeesh ◽  
Steven M. Horwitz ◽  
Nancy L. Bartlett ◽  
Ranjana H. Advani ◽  
Eric D. Jacobsen ◽  
...  
Keyword(s):  
T Cell ◽  
B Cell ◽  
Cell Lymphoma ◽  
Objective Response ◽  
B Cell Lymphoma ◽  
Large Cell ◽  
Brentuximab Vedotin ◽  
T Cell Lymphoma ◽  
Antibody Drug Conjugate ◽  
Non Hodgkin Lymphoma

7543 Background: Brentuximab vedotin (BV), an antibody-drug conjugate targeting CD30, has been evaluated in multiple trials in patients (pts) with peripheral T-cell lymphoma (PTCL), cutaneous T-cell lymphoma (CTCL), or B-cell lymphoma. We examined the ability of CD30 expression level to predict response to BV across these patient populations. Methods: Data were integrated from 275 pts with PTCL, CTCL, and B-cell lymphoma treated with BV from 5 prospective clinical trials. Study SGN35-012 evaluated BV plus rituximab or BV monotherapy in pts with relapsed/refractory non-Hodgkin lymphoma. The ALCANZA study compared BV to physician’s choice of methotrexate or bexarotene in pts with mycosis fungoides (MF) or primary cutaneous anaplastic large cell lymphoma (pcALCL). Three investigator-sponsored trials evaluated BV monotherapy in pts with relapsed PTCL, MF, and pcALCL (35-IST-030, 35-IST-001, 35-IST-002). Exploratory analyses were conducted to examine the relationship between CD30 expression and objective response rate (ORR) for pts with CD30 expression ≥10%, <10%, or undetectable (0%) by IHC (malignant cells or lymphoid infiltrate; local review). Results: 143 pts had tumors with CD30 <10%, including 58/143 with undetectable CD30. Activity with BV was observed at all levels of CD30 expression, including CD30=0 (Table). Analysis of the interaction between CD30 and duration of response is ongoing and will be presented in the final poster. ORR by CD30 expression, n/N (%). Clinical trial information: NCT01421667, NCT02588651, NCT01578499, NCT01352520, NCT01396070. Conclusions: CD30 expression levels ≥10%, <10%, or undetectable did not predict response to BV in a range of CD30-expressing lymphomas: Clinical responses occurred in pts with CD30 low and CD30 undetectable lymphomas. Limitations of IHC, the dynamic nature and heterogeneity of cell-surface CD30 expression, and multiple mechanisms of action of BV may all contribute to this observation.[Table: see text]

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