Publications by authors named "Manuel Gotti"

34 Publications

Cancer Immunotherapy Using Chimeric Antigen Receptor Expressing T-Cells: Present and Future Needs of Clinical Cancer Centers.

Front Immunol 2020 30;11:565236. Epub 2020 Oct 30.

ICMED, Sesto San Giovanni, Italy.

Chimeric Antigen Receptor-T cells (CAR-T) are considered novel biological agents, designed to selectively attack cancer cells expressing specific antigens, with demonstrated clinical activity in patients affected with relapsed/refractory B-cell malignancies. In consideration of their complexity, the use of CAR-T requires dedicated clinical setting and health care practitioners with expertise in the selection, treatment, and management of toxicities and side effects. Such issue appears particularly important when contextualized in the rapid progress of CAR-T cell treatment, translating into a constant need of updating and evolution. Moreover, the clinical grade manufacturing of CAR-T cells is complex and implies articulated regulatory and organizational aspects. The main goal of this review is to summarize and provide an accurate analysis of the clinical, logistic, and regulatory requirements of CAR-T cell centers. Finally, we describe a new occupational figure called "CAR-T specialist" devoted to the establishment and coordination of the required facilities and regulatory landscape in the context of cancer centers.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.3389/fimmu.2020.565236DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7662555PMC
October 2020

Hodgkin's lymphoma: post- autologous transplantation consolidation therapy.

Acta Biomed 2020 05 25;91(S-5):23-29. Epub 2020 May 25.

Onco-Hematology Division, IEO, European Institute of Oncology, IRCCS, Milan, Italy.

A first-line chemotherapy program based on the ABVD regimen is currently considered the golden standard by most hematologists, being able to achieve a cure without any need of subsequent therapies in >70% of patients with advanced-stage Hodgkin's lymphoma (HL). To increase this percentage, efforts in recent decades focused on the development of new therapeutic strategies. A first major effort was the introduction of the BEACOPP chemotherapy regimen, which is able to increase the response rate and to reduce the need of salvage therapies. However, this result did not demonstrate an advantage in terms of overall survival compared to ABVD, mainly due to an excess of non lymphoma-related events in the follow-up phase. Here we describe three clinical cases of young HL patients who had relapsed/refractory disease after the induction chemotherapy. These three clinical cases provide practical and real world evidence in favor of the use of BV in monotherapy as consolidation treatment after autologous stem cells transplantation in patients with relapsed/refractory HL.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.23750/abm.v91iS-5.9914DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7944651PMC
May 2020

Five-year results of the BEGEV salvage regimen in relapsed/refractory classical Hodgkin lymphoma.

Blood Adv 2020 01;4(1):136-140

Department of Hematology and Oncology, Humanitas Cancer Center, Humanitas Clinical and Research Center, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rozzano, Milan, Italy.

The complete remission (CR) rate achieved with induction chemotherapy prior to autologous stem cell transplantation (ASCT) represents the strongest prognostic factor in relapsed/refractory (R/R) classical Hodgkin lymphoma (cHL). By inducing a CR rate of 75%, the bendamustine, gemcitabine, vinorelbine (BEGEV) regimen represents an optimal chemotherapy regimen prior to ASCT. Presented here are the 5-year results of BEGEV followed by ASCT in R/R cHL. With a median follow-up of 5 years, progression-free survival (PFS) and overall survival (OS) for the whole series (n = 59) were 59% and 78%, respectively. ASCT was performed in 43 of 49 responding patients (73% by intention to treat [ITT]; 88% by response to BEGEV) and resulted in 33 with continuous CR (56% by ITT; 77% of transplanted patients), 7 with disease relapse, and 3 with nonrelapse mortality. For patients who received transplants, the 5-year PFS and OS were 77% and 91%, respectively, with no significant difference between relapsed and refractory patients. No patient experienced secondary leukemia or myelodysplasia. In summary, the long-term efficacy data, the benefits for both relapsed and refractory patients, and the excellent safety profile provide a strong rationale for further development of the BEGEV regimen. This trial was registered at EudraCT as #2010-022169-91 and at www.clinicaltrials.gov as #NCT01884441.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1182/bloodadvances.2019000984DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6960479PMC
January 2020

Clinical characteristics of interim-PET negative patients with a positive end PET from the prospective HD08-01 FIL study.

Ann Hematol 2020 Feb 23;99(2):283-291. Epub 2019 Dec 23.

Institute of Hematology "L. e A. Seràgnoli", University of Bologna, Bologna, Italy.

FDG-positron emission tomography (PET) performed early during therapy in advanced Hodgkin lymphoma patients has been confirmed as being important for progression-free survival. A group of patients with a negative interim-PET (i-PET) showed a positive end induction PET (e-PET). The aim of this study was to evaluate the clinical characteristics of patients with a positive e-PET as a secondary end point of the HD0801 study. A total of 519 patients with advanced-stage de novo Hodgkin lymphoma received initial treatment and underwent an i-PET. Patients with negative results continued the standard treatment. i-PET negative patients were then evaluated for response with an e-PET and those patients found to have a positive one were also then given a salvage therapy. Among 409 i-PET negative, 16 interrupted the therapy, 393 patients were evaluated with an e-PET, and 39 were positive. Sixteen out of 39 underwent a diagnostic biopsy and 15 were confirmed as HD. Seventeen out of 39 e-PET were reviewed according to the Deauville Score and, in sixteen, it was confirmed positive (10 DS 5, 6 DS 4). With the exception of high LDH value at diagnosis (p = 0.01; HR 95% CI 1.18-4.89), no clinical characteristics were significantly different in comparison with e-PET negative patients. Positive e-PET after a negative i-PET has a worse outcome when compared with i-PET positive patients salvaged with therapy intensification. It was not possible to identify clinical characteristics associated with a positive e-PET.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00277-019-03889-3DOI Listing
February 2020

Direct-Acting Antivirals in Hepatitis C Virus-Associated Diffuse Large B-cell Lymphomas.

Oncologist 2019 08 14;24(8):e720-e729. Epub 2018 Dec 14.

Department of Molecular Medicine, University of Pavia, Pavia, Italy.

Background: International guidelines suggest hepatitis C virus (HCV) eradication by direct-acting antivirals (DAAs) after first-line immunochemotherapy (I-CT) in patients with HCV-positive diffuse large B-cell lymphoma (DLBCL), although limited experiences substantiate this recommendation. Moreover, only a few data concerning concurrent administration of DAAs with I-CT have been reported.

Subjects, Materials, And Methods: We analyzed hematological and virological outcome and survival of 47 consecutive patients with HCV-positive DLBCL treated at 23 Italian and French centers with DAAs either concurrently (concurrent cohort []: = 9) or subsequently (sequential cohort []: = 38) to first-line I-CT (mainly rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone [R-CHOP]-like).

Results: Median age was 61 years, 89% of patients had stage III/IV, and 25% presented evidence of cirrhosis. Genotype was 1 in 56% and 2 in 34% of cases. Overall, 46 of 47 patients obtained complete response to I-CT. All patients received appropriate DAAs according to genotype, mainly sofosbuvir-based regimens ( = 45). Overall, 45 patients (96%) achieved sustained virological response, 8 of 9 in and 37 of 38 in . DAAs were well tolerated, with only 11 patients experiencing grade 1-2 adverse events. Twenty-three patients experienced hepatic toxicity (grade 3-4 in seven) following I-CT in compared to only one patient in . At a median follow-up of 2.8 years, two patients died (2-year overall survival, 97.4%) and three progressed (2-year progression-free survival, 93.1%).

Conclusion: Excellent outcome of this cohort of HCV-positive DLBCL suggests benefit of HCV eradication by DAAs either after or during I-CT. Moreover, concurrent DAAs and R-CHOP administration appeared feasible, effective, and ideally preferable to deferred administration of DAAs for the prevention of hepatic toxicity.

Implications For Practice: Hepatitis C virus (HCV)-associated diffuse large B-cell lymphomas (DLBCLs) represent a great therapeutic challenge, especially in terms of hepatic toxicity during immune-chemotherapy (I-CT) and long-term hepatic complications. The advent of highly effective and toxicity-free direct-acting antivirals (DAAs) created an exciting opportunity to easily eradicate HCV shortly after or in concomitance with first-line immunochemotherapy (usually R-CHOP). This retrospective international study reports the real-life use of the combination of these two therapeutic modalities either in the concurrent or sequential approach (DAAs after I-CT) in 47 patients. The favorable reported results on long-term outcome seem to support the eradication of HCV with DAAs in all patients with HCV-positive DLBCL. Moreover, the results from the concurrent approach were effective and safe and displayed an advantage in preventing hepatic toxicity during I-CT.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1634/theoncologist.2018-0331DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6693710PMC
August 2019

Italian real life experience with ibrutinib: results of a large observational study on 77 relapsed/refractory mantle cell lymphoma.

Oncotarget 2018 May 4;9(34):23443-23450. Epub 2018 May 4.

Institute of Hematology "L. e A. Seràgnoli", University of Bologna, Bologna, Italy.

Although sometimes presenting as an indolent lymphoma, mantle cell lymphoma (MCL) is an aggressive disease, hardly curable with standard chemo-immunotherapy. Current approaches have greatly improved patients' outcomes, nevertheless the disease is still characterized by high relapse rates. Before approval by EMA, Italian patients with relapsed/refractory MCL were granted ibrutinib early access through a Named Patient Program (NPP). An observational, retrospective, multicenter study was conducted. Seventy-seven heavily pretreated patients were enrolled. At the end of therapy there were 14 complete responses and 14 partial responses, leading to an overall response rate of 36.4%. At 40 months overall survival was 37.8% and progression free survival was 30%; disease free survival was 78.6% at 4 years: 11/14 patients are in continuous complete response with a median of 36 months of follow up. Hematological toxicities were manageable, and main extra-hematological toxicities were diarrhea (9.4%) and lung infections (9.0%). Overall, 4 (5.2%) atrial fibrillations and 3 (3.9%) hemorrhagic syndromes occurred. In conclusions, thrombocytopenia, diarrhea and lung infections are the relevant adverse events to be clinically focused on; regarding effectiveness, ibrutinib is confirmed to be a valid option for refractory/relapsed MCL also in a clinical setting mimicking the real world.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.18632/oncotarget.25215DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5955107PMC
May 2018

Rituximab-dose-dense chemotherapy with or without high-dose chemotherapy plus autologous stem-cell transplantation in high-risk diffuse large B-cell lymphoma (DLCL04): final results of a multicentre, open-label, randomised, controlled, phase 3 study.

Lancet Oncol 2017 08 28;18(8):1076-1088. Epub 2017 Jun 28.

Department of Haematology, Azienda Ospedaliero Universitaria Città della Salute e della Scienza di Torino, Turin, Italy.

Background: The prognosis of young patients with diffuse large B-cell lymphoma at high risk (age-adjusted International Prognostic Index [aa-IPI] score 2 or 3) treated with R-CHOP (rituximab, cyclophosphamide, vincristine, doxorubicin, and prednisone) is poor. The aim of this study was to investigate the possible benefit of intensification with high-dose chemotherapy and autologous stem-cell transplantation as part of first-line treatment in these patients.

Methods: We did a multicentre, open-label, randomised, controlled, phase 3 trial with a 2 × 2 factorial design to compare, at two different R-CHOP dose levels, a full course of rituximab-dose-dense chemotherapy (no transplantation group) versus an abbreviated course of rituximab-dose-dense chemotherapy followed by consolidation with R-MAD (rituximab plus high-dose cytarabine plus mitoxantrone plus dexamethasone) and high-dose BEAM chemotherapy (carmustine, etoposide, cytarabine, and melphalan) plus autologous stem-cell transplantation (transplantation group) in young patients (18-65 years) with untreated high-risk diffuse large B-cell lymphoma (aa-IPI score 2-3). At enrolment, patients were stratified according to aa-IPI score and randomly assigned (1:1:1:1) to receive R-CHOP (intravenous rituximab 375 mg/m, cyclophosphamide 750 mg/m, doxorubicin 50 mg/m, and vincristine 1·4 mg/m on day 1, plus oral prednisone 100 mg on days 1-5) delivered in a 14-day cycle (R-CHOP-14) for eight cycles; high-dose R-CHOP-14 (R-MegaCHOP-14; R-CHOP-14 except for cyclophosphamide 1200 mg/m and doxorubicin 70 mg/m) for six cycles; R-CHOP-14 for four cycles followed by R-MAD (intravenous rituximab 375 mg/m on day 1 or 4 plus intravenous cytarabine 2000 mg/m and dexamethasone 4 mg/m every 12 h on days 1-3 plus intravenous mitoxantrone 8 mg/m on days 1-3) plus BEAM (intravenous carmustine 300 mg/m on day -7, intravenous cytarabine 200 mg/m twice a day on days -6 to -3, intravenous etoposide 100 mg/m twice a day on days -6 to -3, plus intravenous melphalan 140 mg/m on day -2) and autologous stem-cell transplantation (day 0); or R-MegaCHOP-14 for four cycles followed by R-MAD plus BEAM and autologous stem-cell transplantation. The primary endpoint was failure-free survival at 2 years in the intention-to-treat population. This study is registered with EudraCT (2005-002181-14; 2007-000275-42) and with ClinicalTrials.gov, number NCT00499018.

Findings: Between Jan 10, 2006, and Sept 8, 2010, 399 patients were randomly assigned to receive transplantation (n=199) or no transplantation (n=200); 203 patients were assigned to receive R-CHOP-14 and 196 were assigned to receive R-MegaCHOP-14. With a median follow-up of 72 months (IQR 57-88), 2-year failure-free survival was 71% (95% CI 64-77) in the transplantation group versus 62% (95% CI 55-68) in the no transplantation group (hazard ratio [HR] 0·65 [95% CI 0·47-0·91]; stratified log-rank test p=0·012). No difference in 5-year overall survival was observed between these groups (78% [95% CI 71-83] versus 77% [71-83]; HR 0·98 [0·65-1·48]; stratified log-rank test p=0·91). Grade 3 or worse haematological adverse events were reported in 183 (92%) of 199 patients in the transplantation group versus 135 (68%) of 200 patients in the no transplantation group. Grade 3 or worse non-haematological adverse events were reported in 90 (45%) versus 31 (16%); the most common grade 3 or worse non-haematological adverse event was gastrointestinal (49 [25%] vs 19 [10%]). Treatment-related deaths occurred in 13 (3%) patients; eight in the transplantation group and five in the no transplantation group.

Interpretation: Abbreviated rituximab-dose-dense chemotherapy plus R-MAD plus BEAM and autologous stem-cell transplantation reduced the risk of treatment failure compared with full course rituximab-dose-dense chemotherapy in young patients with diffuse large B-cell lymphoma at high risk. However, these results might not be clinically meaningful, since this improvement did not reflect an improvement in overall survival. These results do not support further consideration of the use of intensification of R-CHOP as an upfront strategy in patients with diffuse large B-cell lymphoma with poor prognosis.

Funding: Fondazione Italiana Linfomi.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1016/S1470-2045(17)30444-8DOI Listing
August 2017

Prognostic models for primary mediastinal (thymic) B-cell lymphoma derived from 18-FDG PET/CT quantitative parameters in the International Extranodal Lymphoma Study Group (IELSG) 26 study.

Br J Haematol 2017 08 9;178(4):588-591. Epub 2017 May 9.

Cancer Research UK Centre, Southampton General Hospital, Southampton, United Kingdom.

The International Extranodal Lymphoma Study Group-26 study evaluated the prognostic role of 18-fluorodeoxyglucose positron-emission tomography (PET) in primary mediastinal large B-cell lymphoma. We assessed quantitative PET parameters at diagnosis and post-treatment in 100 patients. The end-of-therapy total lesion glycolysis (TLG) was the best individual outcome predictor, but the combination of baseline TLG and end-of-therapy visual analysis with Deauville Score (DS) showed a better positive predictive value. A model in which baseline TLG is combined with interim DS might identify patients with shorter progression-free survival. PET metrics combined with interim DS may allow early risk assessment and warrants further studies.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1111/bjh.14728DOI Listing
August 2017

Direct-acting antivirals during or after immunochemotherapy in hepatitis C virus-positive diffuse large B-cell lymphomas.

Hepatology 2017 10 26;66(4):1341-1343. Epub 2017 Aug 26.

Departement of Hematology Oncology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1002/hep.29198DOI Listing
October 2017

Early Positron Emission Tomography Response-Adapted Treatment in Stage I and II Hodgkin Lymphoma: Final Results of the Randomized EORTC/LYSA/FIL H10 Trial.

J Clin Oncol 2017 Jun 14;35(16):1786-1794. Epub 2017 Mar 14.

Marc P.E. André, Université Catholique de Louvain, Yvoir; Catherine Fortpied, Valeria Fiaccadori, and Tiana Raveloarivahy, European Organisation for Research and Treatment of Cancer, Brussels, Belgium; Théodore Girinsky and Christophe Fermé, Institut Gustave Roussy, Villejuif; Oumédaly Reman, Institut d'Hématologie de Basse Normandie, Centre Hospitalier Universitaire, Caen; Pauline Brice, Assistance Publique des Hopitaux de Paris Hôpital Saint-Louis; Richard Delarue, Assistance Publique des Hopitaux de Paris Hôpital Universitaire Necker-Enfants Maladies, Paris; Olivier Casasnovas, Centre Hospitalier Universitaire le Bocage and Institut National de la Santé et de la Recherche Médicale, Dijon; Véronique Edeline, Hôpital René Hugenin-Institut Curie, Saint Cloud; Réda Bouabdallah, Institut Paoli Calmette, Marseille; Catherine Sebban, Hematology Centre Léon Bérard, Lyon; Aspasia Stamatoullas, Centre Henri Becquerel, Rouen; Michel Meignan, Henri Mondor University Hospitals, Créteil, France; Massimo Federico and Monica Bellei, University of Modena and Reggio Emilia, Modena; Manuel Gotti, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Policlinico San Matteo, Pavia; Alessandro Re, Spedali Civili Hospital, Brescia; Francesco Merli and Annibale Versari, Arcispedale Santa Maria Nuova Istituto di Ricovero e Cura a Carattere Scientifico, Reggio Emilia, Italy; Richard van der Maazen and John Raemaekers, Radboud University Medical Center, Nijmegen; Gustaaf van Imhoff, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands; and Lena Specht and Martin Hutchings, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.

Purpose Patients who receive combined modality treatment for stage I and II Hodgkin lymphoma (HL) have an excellent outcome. Early response evaluation with positron emission tomography (PET) scan may improve selection of patients who need reduced or more intensive treatments. Methods We performed a randomized trial to evaluate treatment adaptation on the basis of early PET (ePET) after two cycles of doxorubicin, bleomycin, vinblastine, and dacarbazine (ABVD) in previously untreated-according to European Organisation for Research and Treatment of Cancer criteria favorable (F) and unfavorable (U)-stage I and II HL. The standard arm consisted of ABVD followed by involved-node radiotherapy (INRT), regardless of ePET result. In the experimental arm, ePET-negative patients received ABVD only (noninferiority design), whereas ePET-positive patients switched to two cycles of bleomycin, etoposide, doxorubicin, cyclophosphamide, vincristine, procarbazine, and prednisone (BEACOPPesc) and INRT (superiority design). Primary end point was progression-free survival (PFS). Results Of 1,950 randomly assigned patients, 1,925 received an ePET-361 patients (18.8%) were positive. In ePET-positive patients, 5-year PFS improved from 77.4% for standard ABVD + INRT to 90.6% for intensification to BEACOPPesc + INRT (hazard ratio [HR], 0.42; 95% CI, 0.23 to 0.74; P = .002). In ePET-negative patients, 5-year PFS rates in the F group were 99.0% versus 87.1% (HR, 15.8; 95% CI, 3.8 to 66.1) in favor of ABVD + INRT; the U group, 92.1% versus 89.6% (HR, 1.45; 95% CI, 0.8 to 2.5) in favor of ABVD + INRT. For both F and U groups, noninferiority of ABVD only compared with combined modality treatment could not be demonstrated. Conclusion In stage I and II HL, PET response after two cycles of ABVD allows for early treatment adaptation. When ePET is positive after two cycles of ABVD, switching to BEACOPPesc + INRT significantly improved 5-year PFS. In ePET-negative patients, noninferiority of ABVD only could not be demonstrated: risk of relapse is increased when INRT is omitted, especially in patients in the F group.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1200/JCO.2016.68.6394DOI Listing
June 2017

Antiviral therapies for managing viral hepatitis in lymphoma patients.

Expert Opin Pharmacother 2017 Mar 15;18(4):363-376. Epub 2017 Feb 15.

b Department of Hematology-Oncology , Fondazione IRCCS Policlinico San Matteo , Pavia , Italy.

Introduction: In patients with lymphoma the detection of positive hepatitis B or C viruses (HBV and HCV) serology involves crucial therapeutic consequences. In HBV-infected patients the serological profile of active (HBsAg-positive) or resolved (HBsAg-negative/anti-HBcAb-positive) infection is associated to differential risk of viral reactivation during rituximab-based therapy and require appropriate strategies of monitoring and of antiviral prophylaxis. In HCV-associated NHL patients consolidated data demonstrated that interferon (IFN)-based antiviral therapy (AT) is able to induce lymphoma regression strictly related to viral eradication, while preliminary data of the new direct-acting antivirals (DAAs) are very promising. Areas covered: This review summarizes current evidences about HBV reactivation risk in patients undergoing rituximab-based treatments and appropriate options of antiviral prophylaxis with lamivudine, entecavir or tenofovir, as well as pre-emptive strategy in HBsAg-negative/HBcAb-positive patients. Moreover previous experiences with IFN-based AT as well as recent studies with DAAs in HCV-associated indolent lymphomas or diffuse large B-cell lymphoma (DLBCL) are reviewed. Expert opinion: Entecavir or tenofovir prophylaxis is recommended for HBsAg-positive patients, while universal prophilaxis with lamivudine may be preferred in HBsAg-negative/anti-HBc-positive patients. In asymptomatic patients with HCV-associated indolent lymphoma DAA-based AT should be used as first-line option, while in DLBCL its deliver after immunochemotherapy-induced complete remission is suggested.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1080/14656566.2017.1288718DOI Listing
March 2017

Rituximab, bendamustine, and low-dose cytarabine as induction therapy in elderly patients with mantle cell lymphoma: a multicentre, phase 2 trial from Fondazione Italiana Linfomi.

Lancet Haematol 2017 Jan 5;4(1):e15-e23. Epub 2016 Dec 5.

Hematology, Citta' della salute e della scienza University Hospital, Torino, Italy.

Background: The combination of rituximab, bendamustine, and cytarabine (R-BAC) was highly active in a pilot trial of mantle cell lymphoma, but its use was restricted by high haematological toxicity. We aimed to assess the efficacy and safety of an R-BAC regimen with low-dose cytarabine (RBAC500).

Methods: In this multicentre, phase 2 trial, we recruited previously untreated patients with an established histological diagnosis of mantle cell lymphoma from 29 Fondazione Italiana Linfomi centres in Italy. Patients had to be older than 65 years and fit according to the comprehensive geriatric assessment, or aged 60-65 years if they were ineligible for high-dose chemotherapy plus autologous stem-cell transplantation and were fit or unfit. All patients received RBAC500 (rituximab 375 mg/m on day 1, bendamustine 70 mg/m on days 2 and 3, and cytarabine 500 mg/m on days 2-4; all administered intravenously) every 4 weeks for up to six cycles. Primary endpoints were the proportion of patients achieving complete response at the end of treatment and toxicity, defined as the occurrence of any of the stop treatment criteria or of any episode of relevant toxicity. All patients who started at least one cycle of RBAC500 were included in the primary and safety analyses. Using efficacy and toxicity as a composite primary endpoint, we considered the final conclusion positive if more than 28 of 57 patients achieve complete response and fewer than 18 of 57 patients report toxicities. This study is registered with EudraCT, number 2011-005739-23, and ClinicalTrials.gov, number NCT01662050, and is completed.

Findings: Between May 2, 2012, and Feb 25, 2014, we enrolled 57 patients (median age 71 years, IQR 67-75). 54 (95%) patients received at least four RBAC500 cycles (three discontinued because of toxicity), and 38 (67%) completed six cycles. Two (4%) had disease progression (one after the fourth cycle and one after the sixth cycle). All 52 (91%, lower limit of one-sided 95% CI 85%) remaining patients achieved complete response at the end of treatment. 23 (40%, upper limit of one-sided 95% CI 53%) of 57 patients had at least one episode of relevant toxicity. The most frequent grade 3-4 haematological toxicities were neutropenia (149 [49%] of 304 cycles) and thrombocytopenia (158 [52%]). Most treatment-related non-haematological adverse events were of grade 1-2, with the most frequent ones being fatigue (14 [25%] patients), nausea or vomiting (12 [21%]), and infusion-related reactions or tumour lysis syndrome (12 [21%]). 41 (72%) patients required a dose reduction. 12 patients died during the study, but no deaths were related to treatment.

Interpretation: RBAC500 is an effective treatment for elderly patients with mantle cell lymphoma and, despite not meeting our prespecified safety boundary, haematological toxicity was manageable with appropriate supportive care and dose reduction. Since maintenance therapy is not required, RBAC500 could be considered an option and should be studied in phase 3 trials.

Funding: Fondazione Italiana Linfomi and Mundipharma.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1016/S2352-3026(16)30185-5DOI Listing
January 2017

Bendamustine in Combination With Gemcitabine and Vinorelbine Is an Effective Regimen As Induction Chemotherapy Before Autologous Stem-Cell Transplantation for Relapsed or Refractory Hodgkin Lymphoma: Final Results of a Multicenter Phase II Study.

J Clin Oncol 2016 09 5;34(27):3293-9. Epub 2016 Jul 5.

Armando Santoro, Rita Mazza, Luca Castagna, Laura Giordano, and Carmelo Carlo-Stella, Humanitas Cancer Center; Armando Santoro, Humanitas University, Rozzano; Alessandro Pulsoni and Giorgia Annechini, Sapienza University, Rome; Alessandro Re, Antonella Anastasia, and Annalisa Peli, Spedali Civili, Brescia; Maurizio Bonfichi and Manuel Gotti, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo, Pavia; Vittorio Ruggero Zilioli, Niguarda Ca' Granda Hospital; Carmelo Carlo-Stella, University of Milano, Milan; Flavia Salvi, SS Antonio e Biagio Hospital, Alessandria; Francesco Merli, Arcispedale S. Maria Nuova/IRCCS, Reggio Emilia; Stefano Luminari, University of Modena and Reggio Emilia, Modena; Anna Marina Liberati, A.O. Santa Maria, Terni; and Nicola Di Renzo, Vito Fazzi Hospital, Lecce, Italy.

Purpose: This multicenter, open-label, phase II study evaluated the combination of bendamustine, gemcitabine, and vinorelbine (BeGEV) as induction therapy before autologous stem-cell transplantation (ASCT) in patients with relapsed or refractory Hodgkin lymphoma (HL).

Patients And Methods: Patients with HL who were refractory to or had relapsed after one previous chemotherapy line were eligible. The primary end point was complete response (CR) rate after four cycles of therapy. Secondary end points were: overall response rate, stem-cell mobilization activity, and toxicity. Progression-free and overall survival were also evaluated.

Results: In total, 59 patients were enrolled. After four cycles of therapy, 43 patients (73%) achieved CR, and six (10%) achieved partial response, for an overall response rate of 83%. The most common grade 3 to 4 nonhematologic toxicities included febrile neutropenia (n = 7) and infection (n = 4). Regarding hematologic toxicities, grade 3 to 4 thrombocytopenia and neutropenia were each experienced by eight patients (13.5%). CD34+ cells were successfully harvested in 55 of 57 evaluable patients, and 43 of 49 responding patients underwent ASCT. With a median follow-up of 29 months, the 2-year progression-free and overall survival rates for the total population were 62.2% and 77.6%, respectively. The same figures for patients undergoing autograft were 80.8% and 89.3%, respectively.

Conclusion: This phase II study demonstrates that BeGEV is an effective salvage regimen able to induce CR in a high proportion of patients with relapsed or refractory HL before ASCT. These data provide a strong rationale for further development of the BeGEV regimen.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1200/JCO.2016.66.4466DOI Listing
September 2016

LNK mutations in familial myeloproliferative neoplasms.

Blood 2016 07 23;128(1):144-5. Epub 2016 May 23.

Department of Hematology Oncology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Policlinico San Matteo, Pavia, Italy; Department of Molecular Medicine, University of Pavia, Pavia, Italy; and.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1182/blood-2016-04-711150DOI Listing
July 2016

Independent prognostic impact of tumour-infiltrating macrophages in early-stage Hodgkin's lymphoma.

Hematol Oncol 2017 Sep 6;35(3):296-302. Epub 2016 Apr 6.

Department of Hematology Oncology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.

Although patients with early-stage Hodgkin's lymphoma have a high rate of cure, a portion of these are resistant to or relapse after standard treatment. Current prognostic criteria based on clinical and laboratory parameters at diagnosis do not allow to accurately identify the subset of patients with less favourable clinical outcome. An increased number of tumour-infiltrating macrophages was found to be associated with shortened survival in patients with classic Hodgkin's Lymphoma. The aim of this study was to assess the clinical significance of the proportion of CD68-positive infiltrating macrophages in patients with early-stage classic Hodgkin's lymphoma. By using immunohistochemistry technique, we evaluated for CD68 expression diagnostic biopsies of 106 patients affected by supradiaphragmatic early-stage classic Hodgkin's lymphoma treated at our institution since 2000 to 2010. All patients were treated with adriamycin, bleomycin, vinblastine, and dacarbazine chemotherapy followed by radiotherapy in the majority. The 2-year overall survival and progression-free survival (PFS) in the entire cohort were 97% and 83% respectively. The 2-year PFS was statistically different between patients with favourable and those with unfavourable prognosis according to the European Organisation for Research and Treatment of Cancer (EORTC) risk criteria (96% vs 79%, p = 0.039) and between patients having less than 25% of CD68-positive infiltrating macrophages and those with more than 25% (85% vs 67%, p = 0.012). All patients with favourable EORTC criteria had CD68 expression lower than 25%. Within those with unfavourable EORTC criteria, patients with a CD68+ count greater than 25% had a worse 2-year PFS than patients having values lower than 25% (64% vs 82%, p = 0.03). Moreover, in multivariate analysis, after adjusting for CD68+ macrophages count and EORTC score, only CD68+ macrophages count higher than 25% retained a prognostic effect on PFS (hazard ratio = 2.8, 95%CI: 1.1-7.6, p = 0.038). Our data show that a proportion of tumour-infiltrating macrophages greater than 25% is associated with unfavourable clinical outcome in patients with early-stage Hodgkin's lymphoma Copyright © 2016 John Wiley & Sons, Ltd.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1002/hon.2295DOI Listing
September 2017

B-IGEV (bortezomib plus IGEV) versus IGEV before high-dose chemotherapy followed by autologous stem cell transplantation in relapsed or refractory Hodgkin lymphoma: a randomized, phase II trial of the Fondazione Italiana Linfomi (FIL).

Leuk Lymphoma 2016 10 15;57(10):2375-81. Epub 2016 Feb 15.

a Humanitas Cancer Center , Rozzano , Milan , Italy ;

This randomized, multicenter study evaluates the addition of bortezomib (13 mg/m(2)) to IGEV (B-IGEV) in patients with relapsed/refractory Hodgkin Lymphoma (HL). Patients received either four courses of IGEV alone (n = 40) or B-IGEV (n = 40). The primary endpoint was the complete response (CR) proportion, evaluated by FDG-PET, after induction chemotherapy. CR proportion was 39% with B-IGEV and 53% with IGEV. PFS and OS were similar between the two groups (two-year PFS: 58% vs 56%; two-year OS: 93% vs 81%). The PET-negative status after treatment was the only variable favorably influencing both PFS (two-year PFS: 77% vs 40%; p = 0.002) and OS (two-year OS: 100% vs 76%; p < 0.001). Toxicity was overall similar with the two regimens. The addition of bortezomib to IGEV does not improve response in relapsed/refractory HL patients. However, its favorable therapeutic and safety profile, and the prognostic role of pre-transplant PET negativity in patients receiving IGEV-based regimens are confirmed.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.3109/10428194.2016.1140161DOI Listing
October 2016

Methotrexate renal clearance by low-dose dopamine in severe nephrotoxicity.

Ren Fail 2016 4;38(3):362-3. Epub 2016 Jan 4.

a Nephrology, Dialysis, Transplantation , Fondazione I.R.C.C.S. Policlinico San Matteo , Pavia , Italy.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.3109/0886022X.2015.1128841DOI Listing
December 2016

Impact of mutational status on pregnancy outcome in patients with essential thrombocytemia.

Haematologica 2015 Nov 6;100(11):e443-5. Epub 2015 Aug 6.

Department of Hematology Oncology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo, Pavia, Italy Department of Molecular Medicine, University of Pavia, Pavia, Italy.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.3324/haematol.2015.131458DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4825313PMC
November 2015

Utility of baseline 18FDG-PET/CT functional parameters in defining prognosis of primary mediastinal (thymic) large B-cell lymphoma.

Blood 2015 Aug 18;126(8):950-6. Epub 2015 Jun 18.

Oncology Institute of Southern Switzerland, Bellinzona, Switzerland;

The International Extranodal Lymphoma Study Group (IELSG) 26 study was designed to evaluate the role of (18)F-fluorodeoxyglucose (18FDG) positron emission tomography/computed tomography (PET/CT) in the management of primary mediastinal (thymic) large B-cell lymphoma (PMBCL). We examined the prognostic impact of functional PET parameters at diagnosis. Metabolic activity defined by the maximum standardized uptake value (SUVmax), metabolic tumor volume (MTV), and total lesion glycolysis (TLG) was measured on baseline 18FDG PET/CT following a standard protocol in a prospectively enrolled cohort of 103 PMBCL patients. All received combination chemoimmunotherapy with doxorubicin- and rituximab-based regimens; 93 had consolidation radiotherapy. Cutoff values were determined using the receiver-operating characteristic curve. At a median follow-up of 36 months, progression-free survival (PFS) and overall survival (OS) were 87% and 94%, respectively. In univariate analysis, elevated MTV and TLG were significantly associated with worse PFS and OS. Only TLG retained statistical significance for both OS (P = .001) and PFS (P < .001) in multivariate analysis. At 5 years, OS was 100% for patients with low TLG vs 80% for those with high TLG (P = .0001), whereas PFS was 99% vs 64%, respectively (P < .0001). TLG on baseline PET appeared to be a powerful predictor of PMBCL outcomes and warrants further validation as a biomarker. The IELSG 26 study was registered at www.clinicaltrials.gov as #NCT00944567.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1182/blood-2014-12-616474DOI Listing
August 2015

The prognostic value of positron emission tomography performed after two courses (INTERIM-PET) of standard therapy on treatment outcome in early stage Hodgkin lymphoma: A multicentric study by the fondazione italiana linfomi (FIL).

Am J Hematol 2015 Jun 10;90(6):499-503. Epub 2015 May 10.

Department of Hematology, Azienda Ospedaliera S. Croce E Carle, Cuneo, Italy.

This retrospective study included 246 patients with a new diagnosis of Hodgkin Lymphoma (HL) with a localized-stage (IA-IIA), consecutively admitted from January 2002 to December 2008, by twelve Italian hematological centers on behalf of Fondazione Italiana Linfomi (FIL). Patients were staged at baseline and after two cycles of chemotherapy with PET. All patients were treated with four cycles of ABVD followed by involved-field radiotherapy. No treatment change, based on PET-2 results was allowed. Endpoint of the study was the predictive role of PET-2 on 2-y failure-free survival (FFS). PET-2 was positive in 36 patients (15%) and negative in 210. After a mean follow-up of 46 (3-105) months 19/36 PET-2 positive patients progressed or relapsed and 17 achieved and maintained a CCR. The positive and negative predictive value of a PET2 was 53% and 95%, respectively. The sensibility, specificity and accuracy of PET2 were 65.5%, 92% and 89%, respectively. PET-2 positive scans were centrally reviewed according to the recently defined Deauville Criteria. Upon review the PPV and NPV was 73% and 96% overall. Factors with prognostic significance for progression in univariate analysis were a positive PET-2 (P = 0.000) and the presence of bulky disease (P < 0.01). In a multivariate analysis the only factor that affected negatively FFS was a positive PET-2 (P = 0.000). This study confirms that interim-PET could be considered a prognostic test also in early stage HL, but is unlikely to be a factor that will justify the change of therapeutical approach.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1002/ajh.23994DOI Listing
June 2015

Autologous stem cell transplantation with in vivo purged progenitor cells shows long-term efficacy in relapsed/refractory follicular lymphoma.

Am J Hematol 2015 Mar;90(3):230-4

Department of Molecular Medicine, University of Pavia, Pavia, Italy; Department of Hematology and Oncology, Fondazione Istituto Di Ricovero E Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo, Pavia, Italy.

High-dose chemotherapy with autologous stem cell transplantation (ASCT) has been shown effective in the control of relapsed/refractory follicular lymphoma. We evaluate the long-term outcome of patients with relapsed or refractory follicular lymphoma treated with ASCT with in vivo purged progenitors cells. We report the long-term results of a prospective multicenter phase 2 trial on 124 relapsed/refractory follicular lymphoma patients treated with a program of anthracycline-based debulking chemotherapy, immunochemotherapy, mobilization of in vivo purged PBSC followed by ASCT. Median age was 52 years; 14% of patients had grade 3A histology. Debulking chemotherapy produced CR in 16% and PR in 71%, while 13% of patients progressed. After rituximab, cyclophosphamide, vincristine, prednisone (R-COP), CR was obtained in 60% and PR in 35%; 118 patients successfully mobilized PBSC and 117 proceeded to ASCT. The harvest in all the 32 molecularly informative patients was bcl-2 negative. TRM was 0%. The 5-year PFS was 54% and the 5-year OS was 83%. After a median f-up of 6.7 years (range 1.5-13.6), 54% are still in CR. These data show that prolonged PFS is achievable in relapsed/refractory patients with high dose autologous transplantation of in vivo purged progenitor cells.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1002/ajh.23919DOI Listing
March 2015

The NOTCH pathway is recurrently mutated in diffuse large B-cell lymphoma associated with hepatitis C virus infection.

Haematologica 2015 Feb 7;100(2):246-52. Epub 2014 Nov 7.

Department of Molecular Medicine, University of Pavia Department of Pathology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo, Pavia.

Hepatitis C virus has been found to be associated with B-cell non-Hodgkin lymphomas, mostly marginal zone lymphomas and diffuse large B-cell lymphoma. Deregulation of signaling pathways involved in normal marginal zone development (NOTCH pathway, NF-κB, and BCR signaling) has been demonstrated in splenic marginal zone lymphoma. We studied mutations of NOTCH pathway signaling in 46 patients with hepatitis C virus-positive diffuse large B-cell lymphoma and in 64 patients with diffuse large B-cell lymphoma unrelated to HCV. NOTCH2 mutations were detected in 9 of 46 (20%) hepatitis C virus-positive patients, and NOTCH1 mutations in 2 of 46 (4%). By contrast, only one of 64 HCV-negative patients had a NOTCH1 or NOTCH2 mutation. The frequency of the NOTCH pathway lesions was significantly higher in hepatitis C virus-positive patients (P=0.002). The 5-year overall survival was 27% (95%CI: 5%-56%) for hepatitis C virus-positive diffuse large B-cell lymphoma patients carrying a NOTCH pathway mutation versus 62% (95%CI: 42%-77%) for those without these genetic lesions. By univariate analysis, age over 60 years, NOTCH2 mutation, and any mutation of the NOTCH pathway (NOTCH2, NOTCH1, SPEN) were associated with shorter overall survival. Mutation of the NOTCH pathway retained an independent significance (P=0.029). In conclusion, a subset of patients with hepatitis C virus-positive diffuse large B-cell lymphoma displays a molecular signature of splenic marginal zone and has a worse clinical outcome.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.3324/haematol.2014.116855DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4803124PMC
February 2015

Omitting radiotherapy in early positron emission tomography-negative stage I/II Hodgkin lymphoma is associated with an increased risk of early relapse: Clinical results of the preplanned interim analysis of the randomized EORTC/LYSA/FIL H10 trial.

J Clin Oncol 2014 Apr 17;32(12):1188-94. Epub 2014 Mar 17.

John M.M. Raemaekers and Richard van der Maazen, Radboud University Medical Center, Nijmegen; Pieternella J. Lugtenburg, Erasmus University Medical Center, Rotterdam; Gustaaf van Imhoff, University Medical Centre Groningen, Groningen, the Netherlands; Marc P.E. André and Thierry van der Borght, Centre Hospitalier Universitaire (CHU) L'Université Catholique de Louvain Mont Godinne, Yvoir; Yolande Lievens, Ghent University Hospital, Ghent; Tiana Raveloarivahy and Catherine Fortpied, European Organisation for Research and Treatment of Cancer, Brussels, Belgium; Massimo Federico and Monica Bellei, University of Modena and Reggio Emilia, Modena; Ercole Brusamolino, Istituto Clinico Humanitas, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan; Manuel Gotti, Fondazione IRCCS Policlinico San Matteo, Pavia; Allessandro Re, Spedali Civili Hospital, Brescia; Elisabetta Abruzzese, San Eugenio Hospital, Tor Vergata University, Rome; Annibale Versari, Arcispedale Santa Maria Nuova, IRCCS di Reggio Emilia, Reggio Emilia, Italy; Theodore Girinsky and Christophe Fermé, Institut Gustave Roussy, Villejuif; Reman Oumedaly, CHU Caen; Stephane Bardet, Centre Francois Baclesse, Caen; Pauline Brice, Hôpital Saint-Louis, Paris; Reda Bouabdallah, Institut Paoli Calmette, Marseille; Catherine J. Sebban, Centre Léon Bérard, Lyon; Aspasia Stamatoullas, Centre Henri Becquerel, Rouen; Frank Morschhauser, CHU de Lille, Lille; Pierre Olivier, CHU Nancy, Nancy; Rene-Olivier Casasnovas, CHU de Dijon, Dijon; Michel Meignan, Hôpital Henri Mondor, Creteil, France; and Martin Hutchings, Rigshospitalet, Kopenhagen, Denmark.

Purpose: Combined-modality treatment is standard treatment for patients with clinical stage I/II Hodgkin lymphoma (HL). We hypothesized that an early positron emission tomography (PET) scan could be used to adapt treatment. Therefore, we started the randomized EORTC/LYSA/FIL Intergroup H10 trial evaluating whether involved-node radiotherapy (IN-RT) could be omitted without compromising progression-free survival in patients attaining a negative early PET scan after two cycles of ABVD (doxorubicin, bleomycin, vinblastine, and dacarbazine) as compared with standard combined-modality treatment.

Patients And Methods: Patients age 15 to 70 years with untreated clinical stage I/II HL were eligible. Here we report the clinical outcome of the preplanned interim futility analysis scheduled to occur after documentation of 34 events in the early PET-negative group. Because testing for futility in this noninferiority trial corresponds to testing the hypothesis of no difference, a one-sided superiority test was conducted.

Results: The analysis included 1,137 patients. In the favorable subgroup, 85.8% had a negative early PET scan (standard arm, one event v experimental arm, nine events). In the unfavorable subgroup, 74.8% had a negative early PET scan (standard arm, seven events v experimental arm, 16 events). The independent data monitoring committee concluded it was unlikely that we would show noninferiority in the final results for the experimental arm and advised stopping random assignment for early PET-negative patients.

Conclusion: On the basis of this analysis, combined-modality treatment resulted in fewer early progressions in clinical stage I/II HL, although early outcome was excellent in both arms. The final analysis will reveal whether this finding is maintained over time.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1200/JCO.2013.51.9298DOI Listing
April 2014

Outcome prediction of diffuse large B-cell lymphomas associated with hepatitis C virus infection: a study on behalf of the Fondazione Italiana Linfomi.

Haematologica 2014 Mar 22;99(3):489-96. Epub 2013 Nov 22.

A specific prognostication score for hepatitis C virus-positive diffuse large B-cell lymphomas is not available. For this purpose, the Fondazione Italiana Linfomi (FIL, Italian Lymphoma Foundation) carried out a multicenter retrospective study on a large consecutive series of patients with hepatitis C virus-associated diffuse large B-cell lymphoma to evaluate the prognostic impact of clinical and virological features and to develop a specific prognostic score for this subset of patients. All prognostic evaluations were performed on 535 patients treated with an anthracycline-based induction regimen (with rituximab in 255 cases). Severe hepatotoxicity was observed in 14% of patients. The use of rituximab was not associated with increased rate of severe hepatotoxicity. Three-year overall survival and progression-free survival were 71% and 55%, respectively. At multivariate analysis, ECOG performance status of 2 or over, serum albumin below 3.5 g/dL and HCV-RNA viral load over 1000 KIU/mL retained prognostic significance. We combined these 3 factors in a new "HCV Prognostic Score" able to discriminate 3 risk categories with different overall and progression-free survival (low=0; intermediate=1; high-risk ≥2 factors; P<0.001). This score retained prognostic value in the subgroups of patients treated with and without rituximab (P<0.001). The new score performed better than the International Prognostic Index at multivariate analysis and Harrel C-statistic. With the use of three readily available factors (performance status, albumin level and HCV-RNA viral load), the new "HCV Prognostic Score" is able to identify 3 risk categories with different survival, and may be a useful tool to predict the outcome of hepatitis C virus-associated diffuse large B-cell lymphomas.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.3324/haematol.2013.094318DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3943312PMC
March 2014

Clues to pathogenesis of Waldenström macroglobulinemia and immunoglobulin M monoclonal gammopathy of undetermined significance provided by analysis of immunoglobulin heavy chain gene rearrangement and clustering of B-cell receptors.

Leuk Lymphoma 2013 Nov 17;54(11):2485-9. Epub 2013 Apr 17.

Department of Hematology-Oncology, Fondazione IRCCS Policlinico San Matteo , Pavia , Italy.

We characterized immunoglobulin heavy chain (IGH) gene rearrangements and searched for clusters of stereotyped B-cell receptors in 123 patients with Waldenström macroglobulinemia (WM; n = 59) or immunoglobulin M monoclonal gammopathy of undetermined significance (IgM-MGUS) (n = 64). A productive monoclonal IGHV-D-J rearrangement was obtained in 99/123 patients (80%). Immunoglobulin heavy chain variable (IGHV) genes were mutated in 94/99 patients (95%) with a median somatic hypermutation rate of 6.7% (2.1-14.5). Compared with the normal B-cell repertoire, patients with WM/IgM-MGUS showed an over-representation of the IGHV3 subgroup (83% vs. 55%, p < 0.0001) and an under-representation of IGHV1 (7% vs. 14%, p = 0.04) and IGHV4 (7% vs. 23%, p = 0.0001) subgroups. At the gene level, in WM/IgM-MGUS there was an over-representation of IGHV3-23 (24% vs. 12%, p = 0.0003), IGHV3-64 (3% vs. < 1%, p = 0.003), IGHV3-7 (12% vs. 4%, p = 0.0001) and IGHV3-74 (9% vs. 2%, p < 0.0001), while IGHV4-39 was never used (0 vs. 5%, p = 0.03). Intra-WM/IgM-MGUS search for HCDR3 similarity showed no association fulfilling criteria for stereotyped receptors. WM/IgM-MGUS sequences were unrelated to known chronic lymphocytic leukemia (CLL), splenic marginal zone lymphoma (SMZL) or mantle cell lymphoma (MCL) subsets. In conclusion, the IGHV gene usage in WM and IgM-MGUS is remarkably biased as compared to the normal B-cell repertoire. WM and IgM-MGUS-specific HCDR3 clusters do not occur with a frequency detectable with currently available databases, not supporting a B-cell receptor-driven pathogenesis in WM and IgM-MGUS.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.3109/10428194.2013.779689DOI Listing
November 2013

Prevalence and clinical significance of the MYD88 (L265P) somatic mutation in Waldenstrom's macroglobulinemia and related lymphoid neoplasms.

Blood 2013 Mar 25;121(13):2522-8. Epub 2013 Jan 25.

Department of Hematology Oncology, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy.

A study has shown that MYD88 (L265P) is a recurring somatic mutation in Waldenström's macroglobulinemia (WM). We developed an allele-specific polymerase chain reaction (PCR) for this mutation, and analyzed bone marrow or peripheral blood samples from 58 patients with WM, 77 with IgM monoclonal gammopathy of undetermined significance (IgM-MGUS), 84 with splenic marginal zone lymphoma (SMZL), and 52 with B-cell chronic lymphoproliferative disorders (B-CLPD). MYD88 (L265P) was detected in 58/58 (100%) patients with WM, 36/77 (47%) with IgM-MGUS, 5/84 (6%) with SMZL, and 3/52 (4%) with B-CLPD. Compared to IgM-MGUS patients with wild-type MYD88, those carrying MYD88 (L265P) showed significantly higher levels of IgM (P < .0001) and presented Bence-Jones proteinuria more frequently at diagnosis (P = .002). During follow-up, 9 patients with IgM-MGUS progressed to WM or to marginal zone lymphoma. Using a case-control approach, the risk of evolution of patients carrying MYD88 (L265P) was significantly higher than that of patients with wild-type MYD88 (odds ratio 4.7, 95% confidence interval 0.8 to 48.7, P = .047). These findings indicate that the allele-specific PCR we developed is a useful diagnostic tool for patients with WM or IgM-MGUS. In this latter condition, MYD88 (L265P) is associated with greater disease burden and higher risk of disease progression, and the mutation may therefore also represent a useful prognostic marker.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1182/blood-2012-09-457101DOI Listing
March 2013

Indolent B-cell lymphomas associated with HCV infection: clinical and virological features and role of antiviral therapy.

Clin Dev Immunol 2012 26;2012:638185. Epub 2012 Aug 26.

Department of Hematology Oncology, University of Pavia, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy.

The association between hepatitis C virus (HCV) infection and B-cell non-Hodgkin's lymphomas (NHL) has been demonstrated by epidemiological studies, in particular in highly endemic geographical areas such as Italy, Japan, and southern parts of United States. In these countries, together with diffuse large B-cell lymphomas, marginal zone lymphomas are the histotypes most frequently associated with HCV infection; in Italy around 20-30% cases of marginal zone lymphomas are HCV positive. Recently, antiviral treatment with interferon with or without ribavirin has been proved to be effective in the treatment of HCV-positive patients affected by indolent lymphoma, prevalently of marginal zone origin. An increasing number of experiences confirmed the validity of this approach in marginal zone lymphomas and in other indolent NHL subtypes like lymphoplasmacytic lymphoma. Across different studies, overall response rate was approximately 75%. Hematological responses resulted significantly associated with the eradication of the virus. This is the strongest evidence of a causative link between HCV and lymphomas. The aim of this paper is to illustrate the relationship between HCV infection and different subtypes of indolent B-cell lymphomas and to systematically summarize the data from the therapeutic studies that reported the use of antiviral treatment as hematological therapy in patients with HCV-associated indolent lymphomas.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1155/2012/638185DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3432550PMC
October 2012