First-LINE Treatment With High-Dose Dexamethasone Terapy For Adult Primary Inmune Thrombocytopenia

Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 1081-1081
Author(s):  
Dana Diaz-Canales ◽  
Maria Rosario Prieto-Bonilla ◽  
Maria Eva Mingot-Castellano ◽  
Ana Isabel Heiniger Mazo
Keyword(s):  
High Risk ◽  
Median Time ◽  
High Dose ◽  
Similar Response ◽  
Line Treatment ◽  
First Line ◽  
High Dose Dexamethasone ◽  
Number Of Patients ◽  
First Line Treatment

Abstract Introduction Primary immune thrombocytopenia (ITP) is an acquired autoimmune disorder with a very variable outcome. Bleeding manifestations and platelets count are considered the main criteria to start treatment in these patients. The initial recommended therapy are corticosteroids and intravenous immunoglobulin (IgsIV). The aim of our study is the description of efficacy and safety of high-dose dexamethasone (Dx) used as frontline therapy in newly diagnosed ITP patients. Methods A series of patients diagnosed in our centre from March 2009 to August 2012 has been studied. They have received first-line treatment with Dx (40 mg/d four consecutive days every 2 or 4 weeks) for 1 to 6 courses. Sex, age, cardiovascular risk factors, reasons to treat, response, courses of treatment, complications and relapse rate were recorded and analyzed. Results Our series of twenty-nine patients, 18 women (62%) and 11 men (38%), had a median age of 54 years (range 16-92 years). Twenty-five patients (86%) were treated after low platelet counts (30x 10e9 / L) with or without clinical bleeding, whereas the other four patients were treated as a surgery preparation. One patient received a reduced dose of Dx (20 mg/d x 4 days) because of comorbidities and high risk of infection. In thirteen patients, IgsIV were added to Dx in the first course (1g/kg/d x 2 days), because of high bleeding risk or more severe bleeding at diagnosis. Platelets count at baseline was 15x109/ L (range 1-29 x109/ L). Ninety-three percent of patients responded after the first course of Dx (69% complete response CR, 24% partial response PR), and 45% of the patients did not require additional Dx treatment. The median time to reach a response was 5 days since the first day of treatment (range 2-60). The sixteen patients who need more than one course received a median of 4 (range 2-10), all of them without IgsIV. After a median follow-up of 14 months (range 2-45), 69% of these patients maintained the response without further treatment. Therefore, the overall response of the series reaches 83%. After 6 courses of treatment, 5 subjects did not achieved response and were classify as corticosteroid dependent. Of these, one patient was splenectomized and at present he remains at CR after 30 months of follow up. Another patient is waiting for splenectomy, and other three received thrombopoietin analogs, remaining all them in CR under treatment. Thirteen patients received a combination of Igs and Dx in the first course due to high risk of bleeding (platelets less than 20 x 10e9/L and hemorrhagic manifestations). Eleven of them (81%) achieved response (4 PR, 7CR) at a median time of 4 days (range 2–60). After the first course of treatment, 61% (8 of 13) of patients receiving both IgsIV and Dx responded, vs 35% (5 of 16) of those treated only with Dx. This difference was not statistically significant, probably because of the small number of patients in our series. All patients treated with IgsIV and Dx in the first course got the best response after 4 cycles of dexamethasone, compared to 75% of subjects treated with Dx for 4 to 6 courses. Dx was usually well tolerated, since only 13% of the patients experienced side effects: one case of hypertension, another patient developed hyperglycemia associated to corticosteroids and other two presented mild transient steroid psychosis episodes. Infectious events were not observed. Conclusions Treatment with high-dose dexamethasone as first-line treatment for ITP is a good alternative to prednisone because it shows a high efficacy and a good safety profile. In our experience, the association of IgsIV and Dx in the first course may improve the response rate and decrease the total dose of steroids needed to achieve a similar response. Disclosures: No relevant conflicts of interest to declare.

Eltrombopag and High-Dose Dexamethasone As First Line Treatment For ITP

Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 3544-3544
Author(s):  
David Gomez-Almaguer ◽  
Miguel Angel Herrera-Rojas ◽  
Andres Gomez-de Leon ◽  
Olga Graciela Cantú-Rodríguez ◽  
Cesar H Gutiérrez-Aguirre ◽  
...  
Keyword(s):  
Platelet Count ◽  
Immune Thrombocytopenia ◽  
High Dose ◽  
Line Treatment ◽  
Front Line ◽  
First Line ◽  
High Dose Dexamethasone ◽  
Line Therapy ◽  
First Line Treatment

Abstract Introduction Primary immune thrombocytopenia (ITP) is an acquired autoimmune disorder that involves antibody and cell mediated destruction of platelets as well as suppression of their production. Prednisone is the initial standard therapy in adults1. High-dose dexamethasone as front-line therapy given as pulses of 40 mg per day for 4 consecutive days, was effective in 85% of patients, nevertheless, 50% relapsed within six months2. The prices of ITP drugs for 1 month of treatment in an adult range from prednisone; $16, eltrombopag; $5,934, intravenous immune globulin (IVIG) (80 g); $9,648, to rituximab (2 g); $15,5963. Only prednisone/dexamethasone and eltrombopag are available in oral presentation, for this reason, ambulatory treatment is an alternative for these patients. The trombopoietin receptor agonists are effective for the treatment of patients with chronic ITP, although response is dependent on continued administration. Eltrombopag is a small molecule agonist of the c-mpl (TpoR) receptor, which is the physiological target of thrombopoietin. This drug effectively raises the platelet count in adult patients (aged 18 years and over) as second/third line therapy, that is for patients refractory to corticosteroids and IVIG who have had their spleen removed or when splenectomy is not an option4. Our group, as well as others, has previously sought to improve response rates in these patients, particularly with the use of rituximab5, 6. To our knowledge neither eltrombopag nor romiplostim have been used as front line therapy in ITP, therefore the purpose of this study was to assess the efficacy of eltrombopag and dexamethasone in this setting. Patients and Methods This was a prospective, phase 2 study, using the combination of eltrombopag (50 mg PO once a day for 4 weeks) and high-dose dexamethasone (40 mg PO days 1,2,3,4) in untreated adult patients with immune thrombocytopenia or in patients with less than 7 days of treatment with corticosteroids. Complete response (CR) was defined as an increase in platelet count >100×109/L. Partial response (PR) was defined as an increase in the platelet count greater to 30 ×109/L according to standard criteria. Duration of response was considered from the day of initial administration to the first time of relapse (platelet count <30×109/L). Results Twelve consecutive patients were enrolled from June 2012 to June 2013, 6 women and 6 men. The median age at diagnosis was 50 years (range, 20 - 80 years). The median platelet count at diagnosis was 7 x 109/L (range, 2 - 29 x 109/L). Patients were followed for a median of 2.5 months (range 1.1 - 13). After steroid treatment at day +5, ten patients had responded (83.3%), five had achieved CR (41.7%), and five PR. After completing treatment with eltrombopag at day +34, all patients responded (100%), nine patients achieved CR (75%) and three PR (25%). Two patients relapsed in a median time of 39.5 days (range, 30.1 - 49), both regaining CR after treatment with another high-dose dexamethasone course and low-dose rituximab (4 doses of 100 mg every week). At 3 months follow-up 66.7% remained in CR and 33.3% in PR (n=6). At 6 months follow-up two patients remained in CR and two in PR (n=4). Time to best response achieved was 34 days from diagnosis (range, 19 – 64.1). At the end of follow-up 9 patients (75%) remained in CR and 3 patients in PR (25%). Total treatment cost per patient was $1,640 approximately. Conclusion Currently the initial treatment of ITP patients is based on prednisone or high dose dexamethasone with or without IVIG. This approach is associated with high cost and high relapse rate. The results from our pilot study suggest that high dose dexamethasone and eltrombopag are very effective as first line treatment for acute ITP in adults. This treatment is ambulatory, affordable and well tolerated; however, we still don't know if this approach will have a favorable impact on the relapse rate of this disease. Disclosures: Off Label Use: Eltrombopag as first line treatment for ITP.

scholarly journals The Outcome of Mantle Cell Lymphoma patients after Treatment Failure and Prognostic value of Secondary Mantle Cell International Prognostic Index (sec MIPI)

Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 4425-4425 ◽  
Author(s):  
Marek Trneny ◽  
Pavel Klener ◽  
David Belada ◽  
Heidi Mocikova ◽  
Vit Prochazka ◽  
...  
Keyword(s):  
High Risk ◽  
Treatment Failure ◽  
Prognostic Value ◽  
High Dose ◽  
Line Treatment ◽  
First Line ◽  
Single Drug ◽  
Mantle Cell ◽  
First Line Treatment

Abstract Background: MCL is a distinct lymphoma entity with improved outcome achieved by the introduction of rituximab, high dose Ara-C and autologous stem cell transplantation (ASCT) into the first line therapy. The outcome of the relapsed patients (pts) remain however poor and there is little data on the outcome after subsequent relapses and there is no information on secondary MIPI prognostic value. Aim: To analyze the outcome of the MCL patients after first line treatment failure and to evaluate the prognostic role of the sec MIPI which is MIPI calculated at the time of relapse/progression. Methods: This analysis is a part of the Lymphoma project in which consecutive lymphoma patients are registered since the year 1999. Altogether 519 newly diagnosed MCL patients were registered in 5 university centers and 9 regional departments between 1999 and 2011. Patients who were treated with rituximab as part of the first line treatment (n=388) were included into the analysis. The diagnoses were confirmed according to WHO classification in the reference pathology centers. The median follow up is 4.5 years. Results: The whole cohort consists of 261 males and 127 females (2.1:1) with median age 65 y (28-87), the majority of pts had advanced disease (CS IV in 81.6% pts), PS ECOG ≥ 2 in 23.6% pts, elevated LDH in 52.5% of pts. The MIPI risk profile was as follows: low risk 21.7%, intermediate risk 27.2% and high risk in 51.1%. All pts received rituximab as part of the induction, 48.7% pts received CHOP, 5.7% alternation of CHOP and HD Ara-C, 26.2% intensive induction with HD Ara-C, 10.3% CVP, 6.4% FC. High dose therapy with ASCT was performed in 23.9% of pts. The ORR was 89.0% with 63.8 CR/CRu, 6.3% had stable disease and 4.9% were primary progressive. The PFS and OS were 2.9 y and 5.5 y with significant impact of MIPI risk (p<0.0001) for both PFS and OS. There were observed 179 relapses/progressions (R/P) and 70 deaths not related to subsequent progression. The cohort of patients with 1st R/P consisted out of 125 males and 54 females (2.3:1) with median age 68 years (38-89). The sed MIPI at the time of 1st R/P was low in 12.7% pts, intermediate in 32.1% and high 59.8% pts. Rituximab was used in 69.5% of patients, DHAP or ESHAP was used in 25.1% cases, FC in 22.8% of cases, CHOP like regimen in 9.4%, HD Ara-C in 11.8%, only 4.7% were treated with targeted therapy temsirolimus or lenalidomide. Altogether 77.2% pts were treated with the polychemotherapy and 22.8 with monotherapy. ASCT and AlloSCT were performed in 5.5% and 8.7% pts resp. During follow up there were observed 74 deaths not related to subsequent progression and 53 2nd R/Ps. The median of 2nd PFS and 2nd OS from the date of 1st R/P was 1.0 and 1.3 years resp. The sec MIPI low vs. intermediate vs. high risk had significant prognostic impact on 2nd PFS: 5.8 vs 1.7 vs 0.9 years (p<0.0001) (fig 1) as well as on OS : 5.8 vs 3.4 vs 1.1 years (p<0.0001) (fig 2). The cohort of 53 pts with 2nd R/P had median age 68 (38-85) yers, male/female ratio was 1.4. Rituximab was used in 45.9% of treated patients and 48.3% of pts were treated with single drug. During follow up 11 pts developed 3rd R/P and other 30 pts died due to current progression, toxicity or in remission. The median of 3rd PFS from the time of 2nd R/P was 6.8 m and OS 7.4 months. Pts who were treated for 3rd R/P recieved rituximab in 50% of cases and the majority (81.2%) were treated with other single drug. The median of 4th PFS from 3rdR/P was 4.9 m and OS 5.5 months . Conclusions: Our analysis of relapsed MCL patients shows that 1: Median PFS from the Dg was 2.9 y but each subsequent relapse resulted in significantly shorter PFS median 12.1, 6.8 and 4.9 months resp. 2: The median OS from Dg was 5.5y but after each relapse it became shorter - 15.7 m, 7.4 m and 5.5 months resp. 3: The sec MIPI at the time of relapse discriminates the groups with significantly different prognosis. Disclosures No relevant conflicts of interest to declare.

scholarly journals Tacrolimus Plus High-Dose Dexamethasone Versus High-Dose Dexamethasone Alone As First-Line Treatment for Adult Immune Thrombocytopenia: The Phase 2, Open Label, Randomized Trial (TARGET 020)

Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 13-13
Author(s):  
Zhuo-Yu An ◽  
Ye-Jun Wu ◽  
Yun He ◽  
Xiao-Lu Zhu ◽  
Hong-Xia Shi ◽  
...  
Keyword(s):  
Platelet Count ◽  
Combination Group ◽  
High Dose ◽  
Line Treatment ◽  
Monotherapy Group ◽  
First Line ◽  
Open Label ◽  
High Dose Dexamethasone ◽  
First Line Treatment

Abstract Introduction Immune thrombocytopenia (ITP) is an acquired, organ-specific, autoimmune disease and one of the most common bleeding disorders seriously endangering human health. Glucocorticoids and intravenous immunoglobulin are first-line treatments recommended by guidelines for patients with ITP. However, approximately 50%-85% of patients relapse during the first year of treatment. In addition, long-term use of glucocorticoids increases the risk for dose- and time-dependent glucocorticoid-related complications and serious side effects. Therefore, in-depth studies investigating new solutions for the first-line treatment of ITP are urgently needed. Tacrolimus is a calcineurin inhibitor, which forms a complex by binding to FK506-binding protein. It is currently widely used in the prevention of graft-versus-host disease for organ transplantation as well as for the treatment of autoimmune diseases. In addition to recent retrospective studies and case reports demonstrating its effectiveness in ITP, tacrolimus has been shown to improve anti-platelet antibody-mediated thrombocytopenia in mice, suggesting it may be a potential treatment for ITP. The aim of this study was to compare two first-line treatment options for ITP-a standard glucocorticoid-only regimen versus tacrolimus in combination with a standard glucocorticoid regimen-to determine which could help patients achieve stable platelet counts faster and experience a longer duration of remission. Methods This open-label, randomized, phase 2 trial, enrolled adult ITP patients from seven different tertiary medical centers in China. Elderly patients had confirmed, newly diagnosed, treatment-naive ITP, platelet counts &lt;30×10 9/L, or &lt; 50×10 9/L and significant bleeding symptoms (World Health Organization bleeding scale ≥ 2). Eligible patients were randomly assigned 1:1 with an interactive web-based response system to receive either oral tacrolimus (initial 0.03 mg/kg/day and maintain blood concentration at 3-5 ng/mL for 12 weeks) plus high-dose dexamethasone (HD-DXM) or HD-DXM monotherapy for 12 weeks. DXM (40 mg) was administered orally daily for 4 consecutive days to both study arms. The 4-day course of DXM was repeated on days 11-14 in patients who lacked response by day 10. The primary endpoint was 6-month sustained response (SR), defined as platelet count maintained &gt;50×10 9/L without any additional ITP-modifying therapy at the 6-month follow-up. Key secondary endpoints included initial response by day 14 (OR, platelet count ≥30×10 9/L and at least 2-fold increase in baseline platelet count and absence of bleeding; and CR, platelet count ≥ 100×10 9/L), duration of response, bleeding scores, and adverse events (AEs). This trial was registered with ClinicalTrials.gov (NCT04747080). Results Total 140 patients newly diagnosed with ITP were randomly assigned to either the tacrolimus plus HD-DXM (n=72) or HD-DXM monotherapy (n=68) groups. At the 6-month follow-up, the proportion of patients exhibiting SR was significantly higher in the tacrolimus plus HD-DXM group than in the HD-DXM monotherapy group (65.3% vs 42.6%, p= 0.007). Of the 140 patients with ITP (males accounted for 48.6%), the mean age was 32.8 years, the mean platelet count was 16.7×10 9/L. The combination group exhibited a higher 14-day early remission rate than the monotherapy group (76.4% vs 55.9%, P=0.001). Significantly fewer treatment failures occurred in patients randomly assigned to the combination group(19.4% vs 38.2%, P=0.0014). During the follow-up period, fewer patients in the combination group experienced relapse than in the monotherapy group; the median time to relapse was 77 days (Tacrolimus+HD-DXM) vs 36 days (HD-DXM). The combination group exhibited a lower proportion of bleeding events and a lower bleeding score. The incidence of serious AEs, rescue therapy, and treatment side effects were similar between the two groups, and treatment was well tolerated by all patients, with no grade 4 AEs or treatment-related deaths reported. There was no statistically significant difference in the incidence of treatment-related AEs between the two groups. Conclusions Low-dose tacrolimus plus HD-DXM was an effective and safe treatment for ITP as first-line therapy and elicited a sustained prolonged response in adults. This therapy may be a new treatment option for adult patients with ITP. Disclosures No relevant conflicts of interest to declare. OffLabel Disclosure: It includes information or discussion of off-label drug use of tacrilimus.

Bing Neel Syndrome: The French Experience

Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 3068-3068
Author(s):  
Laurence Simon ◽  
Xavier Leleu ◽  
Jehan Dupuis ◽  
Therese Aurran ◽  
Lauris Gastaud ◽  
...  
Keyword(s):  
Median Time ◽  
Systemic Chemotherapy ◽  
Conflicts Of Interest ◽  
Cauda Equina ◽  
Treatment Strategies ◽  
High Dose ◽  
Line Treatment ◽  
First Line ◽  
Csf Analysis ◽  
First Line Treatment

Abstract Background: Bing-Neel syndrome (BNS) is a rare complication of Waldenström Macroglobulinemia (WM) defined as the direct involvement of central nervous system (CNS) by neoplastic cells. Because of its rarity, few data are currently available in the literature, which is mostly based on case-reports descriptions. The management of these patients is challenging with no consensus about the best treatment strategies to use. Patients and Methods: We retrospectively analyzed 37 patients out of 15 French centers databases, treated for a BNS between 1995 and 2014. Results: At the time of BNS diagnosis, the median age was 64 years. In 13 cases (35%), BNS was the first manifestation of WM. In others cases, median time between WM diagnosis and BNS was 96 months (range 2-300).BNS occurrence was correlated with a systemic progression of WM in 30% of cases. For the others patients with no systemic progression of WM, median time between the end of the last treatment of WM and BNS diagnosis was 30 months (range 10-72). The median IgM level was 11.25 g/L (range 0.35-60.8) at the time of BNS onset. Clinical manifestations: the most frequent symptoms at the time of BNS diagnosis were cognitive impairment (32%), motor or sensory deficits (30% and 16% respectively), pain (16%), cranial nerves involvement (30%), headache (21%), poor performance status (32%) and cauda equina syndrome (18%). The median interval between appearance of neurological symptoms and diagnosis of BNS was 4 months. Cerebrospinal fluid (CSF) analysis showed a lymphocytic meningitis in 81% of cases with a median of 33 cells/mm3 (range 7-3900), all with monoclonal B-cell population when phenotyping was available (except one case). Protein level was elevated in 94% (1,77 g/L in median, range 0,52-7,23). Magnetic resonance imaging (MRI) showed abnormalities in 83% (n=29/35) of cases. Meningeal enhancement was present in 52% of cases with conus medullaris infiltration in half of these patients. Cerebral enhancement was present in 45 % of cases and a normal pressure hydrocephalus in 3 cases. In 17% of cases, MRI was normal. Based on MRI results and CSF analysis, the majority of patients (81%, n=30/37) had an infiltrative form with only 7 patients presenting with a pseudotumoral involvement of brain parenchyma. The diagnosis was made on CSF analysis in the majority of cases (82%, n= 28/34). In four cases the diagnosis required a brain biopsy. First-line treatment comprised systemic chemotherapy in 89% (n=33/37) of cases. Treatment of CNS involvement was based on high-dose chemotherapy in 17 cases (methotrexate and/or aracytine). Intra-thecal chemotherapy was used in 70% of cases, and rituximab in 58% of cases. Autologous stem-cell transplantation (ASCT) in first-line was performed in 4 cases. 4 patients were treated up-front by whole-brain radiotherapy (in combination with systemic chemotherapy by fludarabine, cyclophosphamide and rituximab in 1 case). Outcome: 31 patients were assessable for first-line treatment response: overall response rate (ORR) was 68% (n=21/31) including 7 complete remissions; 7 patients had a progressive disease. 9 patients died. Median follow-up of alive patients was 23 months. At 5 years after BNS diagnosis, 79% of the patients were alive. Conclusion: Up to now, this is the most important retrospective cohort of patients presenting with Bing-Neel syndrome. In more than one third of the cases, BNS was the first manifestation of WM disease. Noteworthy is the late occurrence of some cases, up to 25 years. No correlation was observed between systemic progression of WM and BNS occurrence. BNS should be considered even in the context of a stable WM disease. In order to define the best treatment strategies, collection of additional cases is currently ongoing, and data will be up-dated at time of the meeting. Disclosures No relevant conflicts of interest to declare.

scholarly journals Zanubrutinib, Lenalidomide Plus R-CHOP (ZR 2-CHOP) As the First-Line Treatment for Diffused Large B-Cell Lymphoma (DLBCL)

Blood ◽  
2021 ◽  
Vol 138 (Supplement 1) ◽  
pp. 3559-3559
Author(s):  
Huayuan Zhu ◽  
Yeqin Sha ◽  
Wei Wu ◽  
Jingyan Qiu ◽  
Yilian Yang ◽  
...  
Keyword(s):  
High Risk ◽  
Physical Condition ◽  
Hematological Toxicity ◽  
Line Treatment ◽  
First Line ◽  
Pet Ct ◽  
Treatment Naïve ◽  
To Receive ◽  
First Line Treatment

Abstract Introduction To evaluate the safety and efficacy of zanubrutinib, lenalidomide plus R-CHOP (ZR 2-CHOP) as the first-line treatment for DLBCL patients, we conducted this single-arm retrospective observational study. Methods Treatment-naïve patients with DLBCL(including but not limited to double-hit, double expression) aged 18 to 75 years were enrolled.ZR 2-CHOP was given as follows, Oral zanubrutinib was given continuously (160 mg twice daily) from Day 0, lenalidomide 25 mg daily Day 1-7. Patients were administered intravenously rituximab (375 mg/m 2 Day 0), cyclophosphamide (750 mg/m 2 Day 1), doxorubicin (50 mg/m 2 Day 1), vincristine (1.4 mg/m 2 Day 1), and oral prednisone (100 mg Day 1-5). All patients were recommended to receive 6 cycles of ZR 2-CHOP (R-CHOP or R 2-CHOP were allowed in cycle 1-2 due to poor physical condition at treatment) and patients older than 70 years old were administered ZR 2-miniCHOP (Figure 1). CT or PET-CT scans were applied to mid-term efficacy and PET-CT scan was conducted after 6 cycles. ctDNA was dynamically detected before treatment, after 3 and 6 cycles to evaluate tumor mutational burden. The primary endpoint was complete response ratio (CRR) at mid-term and after 6 cycles. The secondary endpoint was overall response rate (ORR), ctDNA dynamics and adverse events (AE). AEs were graded based on CTCAE (version 5.0). Results 12 treatment-naïve DLBCL patients diagnosed in Pukou CLL Center were enrolled in this cohort between July 2020 and June 2021. The median age was 56 years old and all patients had ECOG-PS ≤2. 1 patient (1/12) was diagnosed as double-hit DLBCL and 9 patients (9/12) as double-expression. 10 patients were non-GCB and 2 were GCB. 7 patients were classified as high-intermediate and high-risk group according to NCCN-IPI (Table 1). At data cutoff (1st July, 2021), the median follow-up was 8 months (3-12 months) with all patients have completed at least 3 cycles and mid-term assessment has been conducted. The ORR was 100.0%, with 10 patients achieved CR and 2 patients achieved PR (both two patients received R-CHOP regimen in cycle 1/cycle 1-2 due to poor physical condition at initial treatment, Figure 1). 10 patients have received 6 cycles, all of them achieved CR (Figure 2). ctDNA was dynamically detected in six patients. The median number of detectable ctDNA mutation among six patients was 8 (0-12) with two patients classified as MCD subtype and one patients as EZB subtype. All six patients showed undetectable ctDNA after 3 cycles. During end of treatment follow-up, one patient (triple-hit, EZB) who scheduled to receive auto-SCT underwent disease progression 4 months later and reemergence of ctDNA showed previous homologous clones. The most common hematological toxicity events were lymphocytes count decreased, neutrophil count decreased, thrombocytopenia and anemia, with 3-4 level occurrence rate was 66.7%, 25.0%, 25.0% and 16.7%. The most common non-hematological toxicity events were nausea, fatigue and anorexia. One patients discontinued oral zanubrutinib and lenalidomide in last two cycles due to drug rash. Conclusion ZR 2-CHOP could attain high CR rate and ctDNA clearance in TN DLBCL, including patients with DEL and/or high-risk. The overall tolerability was manageable. ZR 2-CHOP could be one of the promising choice for TN DLBCL. Figure 1 Figure 1. Disclosures No relevant conflicts of interest to declare. OffLabel Disclosure: Zanubrutinib was used in the initial treatment of high-risk DLBCL.

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