Obinutuzumab does not improve complete methabolic response but does not compromise mobilization or engraftment of autologous peripheral blood stem cells in diffuse large B cell lymphoma: Results from a fondazione italiana linfomi prospective phase II study (the GIOTTO study).

Salvage immunochemotherapy and transplant consolidation is the standard treatment for relapsed or refractory (R/R) diffuse large B-cell lymphoma (DLBCL). We tested a combination of Obinutuzumab and DHAP for treating R/R DLBCL. The primary end point was the rate of complete metabolic response (CMR). Secondary end points were stem cell mobilization, stem cell engraftment, overall survival, and feasibility. In this prospective, phase-2, single-arm trial (EudraCT 2014-004014-17) patients received the standard three doses of Obinutuzumab for the first cycle, and then one dose. Patients with CMR were consolidated with an autologous stem cell transplantation (ASCT). An interim analysis was provided after the first 29 patients to confirm the initial null hypothesis that at least 10/29 patients would achieve CMR. Among the 29 patients evaluated for the first stage only six patients (6/29, 21%) achieved CMR, thus, study enrollment was stopped. Nine patients exhibited extra-hematologic toxicities ≥ grade 3. Among the 19 patients that started stem cell mobilization, one failed (5%) and 18 achieved mobilization (95%). Of these 18 patients, nine were reinfused. Mobilization was observed in 16 patients (89%) after one or two apheresis rounds. The mean number of CD34 + cells mobilized was 5.8 × 106 /Kg (median: 5.5, IQR: 5-6.75). The mean number of reinfused CD34 + cells in the nine patients was 4.1 × 106 /Kg (median: 4.1, IQR: 3.5-5). Obinutuzumab combined with DHAP did not compromise stem cell mobilization or engraftment after ASCT in patients with DLBCL. However, Obinutuzumab + DHAP provided a lower CMR rate than expected.

Treatment and prognosis of primary pulmonary lymphoma: A long-term follow-up study.

Primary pulmonary lymphoma (PPL) is a rare disease with not well-defined optimal treatment. Outcomes and follow-up are variable in published data. OBJECTIVES: To define the outcome and optimal treatment strategies in PPL. METHODS: We reviewed the medical records of 49 patients with PPL treated in three Italian Hematological Institutions between 2002 and 2018. RESULTS: Thirty-eight (77.5%) cases were indolent PPL, and 11 (22.5%) cases were aggressive PPL. The majority of patients were asymptomatic at diagnosis, early stages (stages IE-IIE), normal serum LDH, no bone marrow involvement, and low or low-intermediate risks of IPI. Local therapy ± immunotherapy or immuno-chemotherapy was possible in 18/49 (37%) patients. Twenty-eight (57%) patients were treated with immuno-chemotherapy after biopsy. Waiting and watching were reported in 3 (6%) patients. Overall, the CR and ORR were 83.7% and 95.9%. With a median follow-up of 62.5 months (range 0.8-199 months), the estimated 5- and 10-year OS rates were 85% and 72.3% for all patients, 89.2% and 80.3% for indolent PPL, and 70.7% and 47.1% for aggressive PPL. Aggressive PPL tended to have a high risk of progression in the first months (P = .056). No advantages were found for indolent PPL who received immuno-chemotherapy or more conservative approaches. CONCLUSION: Our studies confirm the epidemiological and favorable survival of patients with PPL, suggesting a very conservative approach, particularly in indolent subtypes.

Prolonged survival in the absence of disease-recurrence in advanced-stage follicular lymphoma following chemo-immunotherapy: 13-year update of the prospective, multicenter randomized GITMO-IIL trial.

A prospective trial conducted in the period 2000-2005 showed no survival advantage for high-dose chemotherapy with rituximab and autograft (R-HDS) versus conventional chemotherapy with rituximab (CHOP-R) as first-line therapy in 134 high-risk follicular lymphoma patients aged <60 years. The study has been updated at the 13-year median follow up. As of February 2017, 88 (66%) patients were alive, with overall survival of 66.4% at 13 years, without a significant difference between R-HDS (64.5%) and CHOP-R (68.5%). To date, 46 patients have died, mainly because of disease progression (47.8% of all deaths), secondary malignancies (3 solid tumor, 9 myelodysplasia/acute leukemia; 26.1% of all deaths), and other toxicities (21.7% of all deaths). Complete remission was documented in 98 (73.1%) patients and associated with overall survival, with 13-year estimates of 77.0% and 36.8% for complete remission versus no-complete remission, respectively. Molecular remission was documented in 39 (65%) out of 60 evaluable patients and associated with improved survival. In multivariate analysis, complete remission achievement had the strongest effect on survival (P<0.001), along with younger age (P=0.002) and female sex (P=0.013). Overall, 50 patients (37.3%) survived with no disease recurrence (18 CHOP-R, 32 R-HDS). This follow up is the longest reported on follicular lymphoma treated upfront with rituximab-chemotherapy and demonstrates an unprecedented improvement in survival compared to the pre-rituximab era, regardless of the use of intensified or conventional treatment. Complete remission was the most important factor for prolonged survival and a high proportion of patients had prolonged survival in their first remission, raising the issue of curability in follicular lymphoma. (Registered at clinicaltrials.gov identifier: 00435955).

Resolution of primary hepatic marginal zone lymphoma in a hepatitis C virus-infected patient treated with a direct-acting antiviral.

The favorable impact of antiviral therapy on low-grade hepatitis C virus (HCV)-related non-Hodgkin lymphoma manifesting as marginal zone lymphoma (MZL) has been reported in some clinical studies. However, primary HCV-related marginal zone lymphomas (MZLs) confined to the liver have not been described in the literature nor have the resolution of liver lymphoma through anti-HCV eradication treatment. The authors report a genotype 1b HCV-positive patient with chronic hepatitis who exhibited lesions involving both hepatic lobes resembling hepatocellular carcinoma. Liver biopsy revealed an MZL of the liver. Antiviral treatment using sofosbuvir associated with simeprevir as unique treatment was started and resulted in complete haematological response. In HCV-related MZL isolated to the liver, antiviral treatment has led to the eradication of viral infection and a complete haematological response. Antiviral therapy should be considered as a first-line treatment for HCV-related primary MZLs of the liver.

The neutrophil to lymphocyte ratio (NLR) and the presence of large nodal mass are independent predictors of early response: A subanalysis of the prospective phase II PET-2-adapted HD0607 trial.

BACKGROUND: The neutrophil to lymphocyte ratio (NLR) and the lymphocyte to monocyte ratio (LMR) can reflect both the myeloid dysfunction and T-cell immune suppression and have prognostic significance. METHODS: In 771 newly diagnosed advanced-stage Hodgkin Lymphoma (HL) patients we evaluated the baseline values of NLR and LMR as predictors of clinical outcome. According to the multicenter prospective phase II GITIL-HD0607 trial, all patients received two ABVD courses and if PET-2 negative received four additional ABVD cycles while if PET-2-positive patients were randomized to either BEACOPP escalated (Be) plus BEACOPP baseline (Bb) (4 + 4 courses) or Be + Bb (4 + 4) and Rituximab. PET scans were centrally reviewed by an expert panel by Blinded Independent Central Review. RESULTS: Higher NLR and lower LMR were associated with a PET-2 positivity and failure to achieve long-term disease control, respectively. By univariate and multivariate analysis, large nodal mass (>7 cm), IPS ≥ 3, NLR > 6 were strong independent predictors of early PET-2 response after ABVD. Only NLR > 6 and IPS ≥ 3 were strong independent predictors of outcome at diagnosis; however, when PET-2 status was added, only PET-2-positive status and IPS ≥ 3 were independent predictors of PFS. Focusing on PET-2-negative patients, those with NLR > 6 had an inferior 3-year PFS compared to patients with NLR ≤ 6 (84% vs 89% months, P = .03). CONCLUSION: In advanced-stage HL patients treated with a PET-2-driven strategy, IPS ≥ 3 and NLR > 6 are independent predictors of outcome at diagnosis while the presence of large nodal mass, IPS ≥ 3, and NLR > 6 at diagnosis are independent predictors of early ABVD response.

Antiviral therapy in hepatitis C-infected patients prevents relapse of diffuse large B cell lymphoma.

INTRODUCTION: Hepatitis C infection (HCV) is highly prevalent worldwide and has a well-known association with B-cell lymphoid malignancies. While several studies have demonstrated that antiviral therapy (AT) is effective to induce a complete hematological response in HCV-related low-grade B cell lymphoma, in HCV-related high-grade B cell non-Hodgkin lymphomas such as diffuse large B cell lymphoma (DLBCL) chemotherapy is the only possible choice. However, the role of AT to reduce relapse of DLBCL after an effective chemotherapy containing rituximab (CT-R) has not been analyzed in previous studies. Therefore we analyzed whether patients with a sustained virological response (SVR) to AT had over time a reduction of lymphoma relapse compared to no-SVR patients. MATERIAL AND METHODS: The study included 21 consecutive HCV-infected patients affected by DLBCL. The patients were treated with AT (direct-acting antivirals or pegylated interferon alfa plus ribavirin) concomitantly or after CT-R. Over time, we evaluated relapse of DLBCL in patients treated with CT-R according to response to AT. RESULTS: An SVR was achieved in 16 of 21 patients. Five patients relapsed on AT with PegIFN/R (pegylated interferon plus ribavirin). Over time lymphoma relapse was more frequent in patients without a virological response compared with patients with an SVR (RR = 12.0, 95% CI: 1.66-86, p < 0.01 Fisher's exact test). CONCLUSIONS: AT during or after CT-R is an important strategy to prevent relapse of DLBCL in HCV patients when the patients have achieved an SVR. Our results suggest that eradication of HCV infection may result in long-term prevention of B-cell non-Hodgkin's lymphoma relapse.

Randomized Trial Comparing R-CHOP Versus High-Dose Sequential Chemotherapy in High-Risk Patients With Diffuse Large B-Cell Lymphomas.

Purpose The benefit of high-dose chemotherapy with autologous stem-cell transplantation (ASCT) as first-line treatment in patients with diffuse large B-cell lymphomas is still a matter of debate. To address this point, we designed a randomized phase III trial to compare rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP)-14 (eight cycles) with rituximab plus high-dose sequential chemotherapy (R-HDS) with ASCT. Patients and Methods From June 2005 to June 2011, 246 high-risk patients with a high-intermediate (56%) or high (44%) International Prognostic Index score were randomly assigned to the R-CHOP or R-HDS arm, and 235 were analyzed by intent to treat. The primary efficacy end point of the study was 3-year event-free survival, and results were analyzed on an intent-to-treat basis. Results Clinical response (complete response, 78% v 76%; partial response, 5% v 9%) and failures (no response, 15% v 11%; and early treatment-related mortality, 2% v 3%) were similar after R-CHOP versus R-HDS, respectively. After a median follow-up of 5 years, the 3-year event-free survival was 62% versus 65% ( P = .83). At 3 years, compared with the R-CHOP arm, the R-HDS arm had better disease-free survival (79% v 91%, respectively; P = .034), but this subsequently vanished because of late-occurring treatment-related deaths. No difference was detected in terms of progression-free survival (65% v 75%, respectively; P = .12), or overall survival (74% v 77%, respectively; P = .64). Significantly higher hematologic toxicity ( P < .001) and more infectious complications ( P < .001) were observed in the R-HDS arm. Conclusion In this study, front-line intensive R-HDS chemotherapy with ASCT did not improve the outcome of high-risk patients with diffuse large B-cell lymphomas.

Primary cardiac lymphoma: report of two cases occurring in immunocompetent subjects.

Primary cardiac lymphomas (PCLs), involving solely heart and/or pericardium at presentation, are rare events. They are frequently recognized at autopsy and generally carry a poor prognosis due either to a delay in the diagnosis or to infiltration of heart structures. We report here on two patients with large B-cell PCL. One is a 52-year-old man who presented with multiple cardiac tumors infiltrating mainly the right atrium and the inter-atrial septum. Diagnosis was established by ultrasound-assisted transesophageal biopsy of the intra-atrial multilobated tumor mass. He was treated with Rituximab-implemented high-dose sequential (R-HDS) chemotherapy followed by autologous peripheral blood stem cell transplantation, attaining complete response. He had no evidence of disease 24 months from onset. The second patient was a 70-year-old woman who presented with pericardial tamponade and low-output cardiac failure. Despite prompt pericadiocentesis and chemotherapy with cyclophosphamide and vincristine, she died 2 weeks later. Postmortem examination revealed large B-cell lymphoma proliferation confined to the heart. Whether primitive heart localizations represent an independent prognostic factor, and what specific measures should be adopted in patients with this rare presentation is the subject of the present report and review of the literature.

Fludarabine, cyclophosphamide and mitoxantrone for untreated follicular lymphoma: a report from the non-Hodgkin's lymphoma co-operative study group.

The aim of the study was to determine the safety and efficacy of the combination of fludarabine (FLU), cyclophosphamide (CY) and mitoxantrone (FLU/CY/MITO) in untreated follicular lymphomas (FL), Sixty patients with newly diagnosed stage II bulky to IV FL, median age 59 years (range 36-70), received FLU/CY/MITO regimen (FLU 25 mg/m2 days 1-3, CY 300 mg/m2 days 1-3, Mito 10 mg/m2 day 1). Patients received antibiotic oral prophylaxis during all treatments, and growth factors (G-CSF) when grade III granulocytopenia (WHO) occurred. The overall response rate was 87%: 46 patients achieved complete response (CR) (77%), 6 a partial response (10%) and 8 were non-responders. Fifty patients are surviving with a median observation time of 31 months. The 4-year estimated probability of overall survival and failure-free survival were 78.2% and 45% respectively. Thirty-five patients (58%) are still in CR. Sixty percent of patients experienced grade III-IV granulocytopenia. Two patients suffered grade III pulmonary infection and one grade III liver toxicity. In a subset of 46 patients, bcl-2 translocation was positive in bone marrow (BM) and/or peripheral blood (PB) of 36 patients. At the end of treatment, 25 of these patients had CR and 19 (76%) converted to polymerase chain reaction (PCR) negativity. FLU/CY/MITO regimen showed a high level of activity in follicular lymphoma. Toxicity, mainly hematological, was acceptable and the treatment was made feasible by the use of antibiotic prophylaxis and G-CSF. Significant non-hematological toxicities were seen, but no patients died. The conversion of bcl-2 from positive to negative by PCR in BM and/or PB suggests a possible role for this treatment in clearing minimal residual disease and improving patients' outcome.

Hepatitis C virus-related B cell subtypes in non Hodgkin's lymphoma.

AIM: To evaluate if indolent B cell-non Hodgkin's lymphoma (B-NHL) and diffuse large B-cell lymphoma (DLBCL) in hepatitis C virus (HCV) positive patients could have different biological and clinical characteristics requiring different management strategies. METHODS: A group of 24 HCV related B-NHL patients (11 indolent, 13 DLBCL) in whom the biological and clinical characteristics were described and confronted. Patients with DLBCL were managed with the standard of care of treatment. Patients with indolent HCV-related B-NHL were managed with antiviral treatment pegylated interferon plus ribavirin and their course observed. The outcomes of the different approaches were compared. RESULTS: Patients with DLBCL had a shorter duration of HCV infection and a higher prevalence of HCV genotype 1 compared to patients with indolent B-NHL in which HCV genotype 2 was the more frequent genotype. Five of the 9 patients with indolent HCV-related B-NHL treated with only antiviral therapy, achieved a complete response of their onco-haematological disease (55%). Seven of the 13 DLBCL patients treated with immunochemotheraphy obtained a complete response (54%). CONCLUSION: HCV genotypes and duration of HCV infection differed between B-NHL subtypes. Indolent lymphomas can be managed with antiviral treatment, while DLBCL is not affected by the HCV infection.

Risk factors for the development of secondary malignancy after high-dose chemotherapy and autograft, with or without rituximab: a 20-year retrospective follow-up study in patients with lymphoma.

PURPOSE: High-dose chemotherapy with peripheral blood progenitor cell (PBPC) autograft is effective in high-risk lymphoma, particularly with the addition of rituximab; however, it is associated with risk of secondary malignancy. These issues have been addressed in a series of 1,347 patients with lymphoma treated with a high-dose sequential (HDS) program. PATIENTS AND METHODS: A total of 1,024 patients with B-cell lymphoma, 234 patients with Hodgkin's lymphoma, and 89 patients with T-cell lymphoma were treated with HDS between 1985 and 2005 at 11 Gruppo Italiano Terapie Innovative Linfomi centers. HDS was given as salvage treatment to 707 patients (52%); 655 patients (49%) received a modified HDS, with high-dose cytarabine and two consecutive PBPC harvests. Rituximab-supplemented HDS was given to 523 patients (39%). RESULTS: At a median follow-up of 7 years, the median overall survival (OS) was 16.2 years; in B-cell lymphoma the OS was significantly superior with rituximab HDS compared to HDS alone. The cumulative incidence at 5 and 10 years of secondary myelodysplasia/acute leukemia (sMDS/AL) were 3.09% and 4.52%, respectively, that of solid tumors were 2.54% and 6.79%, respectively. Factors associated with sMDS/AL were male sex and use of the second harvest PBPC for the graft; factors found to be associated with solid tumor were advanced age, post-HDS radiotherapy, and rituximab addition to HDS. Despite the increased risk of solid tumors, rituximab addition to HDS was still associated with survival advantages. CONCLUSION: This analysis has relevant implications for the design and use of intensive chemoimmunotherapy with autograft. In addition, it offers useful insights toward the understanding and prevention of tumor development.

Alemtuzumab (Campath-1H) and CHOP chemotherapy as first-line treatment of peripheral T-cell lymphoma: results of a GITIL (Gruppo Italiano Terapie Innovative nei Linfomi) prospective multicenter trial.

To evaluate in a prospective multicenter trial the feasibility and clinical efficacy of the combination of alemtuzumab (Campath-1H) with the cyclophosphamide/doxorubicin/vincristine/prednisone (CHOP) regimen (CHOP-C) as the primary treatment for patients with peripheral T-cell lymphoma (PTCL), between January 2003 and December 2005, 24 consecutive patients with PTCL entered the study and received 8 CHOP courses. Alemtuzumab was added at 30 mg subcutaneously at day -1 initially to the first 4 courses (4 patients), and then to all 8 courses (20 patients). Complete remission (CR) was achieved in 17 (71%) patients, 1 had partial remission, and 6 had stable/progressive disease. At a median follow-up of 16 months (range, 5-42 months), 14 patients were alive, 9 had died from progressive disease, and 1 had died from pneumonia at day +198 while in CR. So far, 13 are disease-free, with an overall median duration of response of 11 months. The most frequent side effects were grade 4 neutropenia and cytomegalovirus (CMV) reactivation. Major infections were Jacob-Creutzfeldt (J-C) virus reactivation, pulmonary invasive aspergillosis, Staphylococcus sepsis, and pneumonia. This study shows that CHOP-C: (1) is a feasible chemoimmunotherapy regimen; (2) is effective in PTCL with a high rate of CR achievement; and (3) is associated with mostly manageable infectious complications. This clinical trial was registered with the Osservatorio Nazionale sulla Sperimentazione cinica as ID no. 141202.