Brentuximab Vedotin Followed By ABVD in Patients with Previously Untreated Hodgkin Lymphoma. a Pilot Phase II Study

Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 3088-3088 ◽  
Author(s):  
Pier Luigi Zinzani ◽  
Stefano Luminari ◽  
Francesco Merli ◽  
Emanuela Anna Pesce ◽  
Stephane Chauvie ◽  
...  

Abstract active and well tolerated single agent in the treatment of heavily pretreated Hodgkin lymphoma patients. In this pilot phase II study patients with previously untreated HL underwent sequential regimen consisting in 2 cycles of BV before doxorubicin, bleomycin, vinblastine and dacarbazine (ABVD) +/- radiotherapy (RT). The primary endpoint of the study was the response to BV assessed by positron emission tomography (PET) after the 2 cycles (PET2), defined as reduction of Deauville score or, in case of no change in Deauville score, as any reduction in standard uptake value (SUV) intensity compared to basal SUV. Between April and October 2013, 12 patients with a median age at diagnosis of 36 years (range, 19-70), 11 stage I-IIA and 1 stage IIIA, were enrolled. BV was administered as scheduled and at the full dose of 1.8 mg/kg in all patients. After the 2 cycles of BV, the overall response rate was 91%, comprising of ten (83%) complete responses and one (8%) partial metabolic response. The non responding patient had stage III and showed a new lesion at PET2. After ABVD +/- RT, the overall response rate was 100% with 11 complete responses and 1 partial response (converting from progression disease). At a median follow up of 8 months, all 11 patients are still in complete response, while the remaining one relapsed. During BV therapy, the only grade 3 adverse events were transient and asymptomatic increase in liver transaminases (n=3, 25%) and gamma glutamyl transpeptidase (n=2, 17%). During ABVD +/- RT grade III-IV neutropenia occurred in 9 (75%) patients. All toxicities were transient and resolved with growth factor support. Two cycles of BV as first line-treatment in limited stage HL induced an outstanding complete response rate with limited toxicity and reducing the need of chemotherapy. Waiting for a longer follow up to assess the duration of response, our data (sequential administration of immunotherapy and chemotherapy) should be considered the starting point for further studies in first line therapy for limited stage HL patients. Disclosures No relevant conflicts of interest to declare.

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e15592-e15592
Author(s):  
J. Fahlke ◽  
K. Ridwelski ◽  
A. Florschuetz ◽  
E. Kettner ◽  
M. Leithaeuser ◽  
...  

e15592 Background: Based on promising published data, this multicenter, phase II study was initiated to investigate a combined treatment using DC and cetuximab in the first-line setting for patients with gastric cancer. Methods: Patients aged 18–75 years with stage III (T4, nonresectable) or stage IV gastric cancer, ECOG performance status (PS) ≤2, and life expectancy ≥3 months were recruited to receive cetuximab (400 mg/m2 on day 1 then 250 mg/m2 q1w) and DC (D 75 mg/m2 and C 75 mg/m2; both as 1-h infusions on day 1 and then q3w). Treatment was stopped in the event of disease progression, intolerable toxicity, or consent withdrawal. Tumor staging was performed after cycle 3 and then every 12 weeks. The primary endpoint was overall response rate and secondary endpoints included time to progression, overall survival and toxicity. Planned accrual was 79 patients. A per-protocol interim response analysis was planned for the initial 20 evaluable patients. Results: Preliminary data are available for 30 patients; median age 64 [range: 40–73] years; median ECOG PS 1 [range: 0–2]; adenocarcinoma 87%. Median cycles administered were 3 [range: 1–14] and the median follow-up was 1.63 months. The overall response rate was 27.3% (complete response, n=1; partial response, n=5). Stable disease was observed in 10 patients, and disease progression in 6 patients. The most relevant NCI-CTC grade 3–4 hematologic events per patient were leukopenia and neutropenia (73%), anemia (13%), and febrile neutropenia (10%). Major grade 3–4 nonhematologic toxicities were nausea (30%), vomiting (20%), diarrhea (13%), acne (13%), and fatigue (13%). Conclusions: DC and cetuximab were well tolerated and resulted in promising response rates and a predictable toxicity profile. The study is ongoing. No significant financial relationships to disclose.


2020 ◽  
Vol 4 (17) ◽  
pp. 4091-4101
Author(s):  
Arne Kolstad ◽  
Tim Illidge ◽  
Nils Bolstad ◽  
Signe Spetalen ◽  
Ulf Madsbu ◽  
...  

Abstract For patients with indolent non-Hodgkin lymphoma who fail initial anti-CD20–based immunochemotherapy or develop relapsed or refractory disease, there remains a significant unmet clinical need for new therapeutic approaches to improve outcomes and quality of life. 177Lu-lilotomab satetraxetan is a next-generation single-dose CD37-directed radioimmunotherapy (RIT) which was investigated in a phase 1/2a study in 74 patients with relapsed/refractory indolent non-Hodgkin B-cell lymphoma, including 57 patients with follicular lymphoma (FL). To improve targeting of 177Lu-lilotomab satetraxetan to tumor tissue and decrease hematologic toxicity, its administration was preceded by the anti-CD20 monoclonal antibody rituximab and the “cold” anti-CD37 antibody lilotomab. The most common adverse events (AEs) were reversible grade 3/4 neutropenia (31.6%) and thrombocytopenia (26.3%) with neutrophil and platelet count nadirs 5 to 7 weeks after RIT. The most frequent nonhematologic AE was grade 1/2 nausea (15.8%). With a single administration, the overall response rate was 61% (65% in patients with FL), including 30% complete responses. For FL with ≥2 prior therapies (n = 37), the overall response rate was 70%, including 32% complete responses. For patients with rituximab-refractory FL ≥2 prior therapies (n = 21), the overall response rate was 67%, and the complete response rate was 24%. The overall median duration of response was 13.6 months (32.0 months for patients with a complete response). 177Lu-lilotomab satetraxetan may provide a valuable alternative treatment approach in relapsed/refractory non-Hodgkin lymphoma, particularly in patients with comorbidities unsuitable for more intensive approaches. This trial was registered at www.clinicaltrials.gov as #NCT01796171.


Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 228-228 ◽  
Author(s):  
Jean-Pierre Issa ◽  
Ryan Castoro ◽  
Farhad Ravandi-Kashani ◽  
Stefan Faderl ◽  
Xuelin Huang ◽  
...  

Abstract Introduction: Inhibition of DNA methylation (DNMTi) by decitabine (DAC) or azacitidine is a form of epigenetic therapy that is clinically effective in the treatment of MDS and AML. In-vitro, histone deacetylase inhibition (HDACi) following DNA hypomethylation induction results in synergistic enhancement of gene expression activation, but the effects of HDACi on the cell cycle can also interfere with DNTMi activity, resulting in schedule dependent antagonism. Phase I/II studies of the combination of DNMTi and HDACi have shown some promise, triggering randomized studies. Methods: We conducted a randomized phase II study of DAC at 20 mg/m2 IV/1 hour daily ×5 q4 weeks vs. DAC at a similar dose + Valproic acid (VPA) 50 mg/kg PO daily ×7 starting on day 1 of DAC. Eligibility included MDS (FAB), IPSS>0 or AML, age >60 (excluding APL and CBF AML). An adaptive randomization design based on a composite score of CR, response and survival was used after the 40th patient to assign patients to the superior arm. DNA methylation was measured by bisulfite pyrosequencing on peripheral blood mononuclear cells prior to and during treatment. Results: 76 patients were enrolled on the study, 2 of whom received no therapy and are excluded from analysis. These included 8 patients with CMML (median age 72), 23 patients with AML (median age 71 (63–81), median BM blasts 40% (30–87), median WBCs 5.4 (1.1–97)) and 43 patients with MDS (median age 66 (36–89), IPSS Int1 (10), Int2 (19) and high (14)). Cytogenetics were abnormal in 40 patients (54%), most with complex or poor risk karyotypes. 42 patients (57%) were randomized to DAC alone. Overall, the median number of courses given so far is 4 (1–17) and 27 patients (36%) remain on therapy, at a median follow-up of 14 months. Response data are available for 67 patients (7 are too early). Overall, responses were seen in 31 patients (46%), with CR in 23 (34%) and other responses in 8 (12%). Overall response rate was 39% in AML, 71% in CMML and 46% in MDS. In patients receiving decitabine alone, the overall response rate was 17/40 (43%), compared to 14/27 (52%) in those randomized to DAC+VPA (p=NS). Median time to first response was 64 days (18–194) with DAC alone compared to 57 days (23–123) with DAC+VPA (p=NS). VPA added significant neurotoxicity to the regimen, with several patients discontinuing the drug due to somnolence or confusion. Median survival was 8.7 months in AML and 14.9 months in MDS (p=0.04). Kaplan-Meier analysis showed no difference in survival between DAC and DAC+VPA in the first year after therapy. DNA methylation analysis showed a similar degree of LINE demethylation in both arms, Conclusions: Preliminary analysis of this randomized study suggests that adding VPA to DAC only marginally improves response rate and time to first response and has no impact on survival in MDS and AML. It remains to be seen (in randomized studies) whether more potent HDACi will show greater evidence of clinical synergy with DNMTi.


Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 1661-1661 ◽  
Author(s):  
Brad S Kahl ◽  
Hailun Li ◽  
Mitchell R Smith ◽  
Randy D. Gascoyne ◽  
Elisabeth Paietta ◽  
...  

Abstract Abstract 1661 Poster Board I-687 Introduction One approach to improving outcomes in Mantle Cell Lymphoma (MCL) is to incorporate newer targeted agents into standard chemotherapy regimens. As the proteasome inhibitor bortezomib (Velcade‘) achieved a 33% response rate in relapsed MCL, we hypothesized that the incorporation of Velcade (Vc) into a modified R-hyperCVAD chemotherapy backbone would result in a high complete response rate (CR). The new regimen, VcR-CVAD, was tested for safety and efficacy in a phase II study within the Wisconsin Oncology Network (UW) and demonstrated a CR rate of 77% (Kahl, ASH 2008). To determine the safety and efficacy of this regimen in a cooperative group setting, we initiated E1405: a phase II study of VcR-CVAD with maintenance rituximab (MR) for untreated MCL. Methods Eligible patients had histologically confirmed, previously untreated MCL, PS 0-2, and adequate end organ function. The treatment plan included: Velcade 1.3 mg/m2 days 1 and 4, rituximab 375 mg/m2 IV day 1, cyclophosphamide 300 mg/m2 IV over 3 hrs q 12 hrs X 6 doses days 1-3, doxorubicin 50 mg/m2 continuous infusion over 48 hrs days 1-2, vincristine 1 mg IV day 3, dexamethasone 40 mg po days 1-4. Cycles were repeated every 21 days for 6 cycles and all patients received G-CSF support. Patients achieving SD, PR, or CR received MR administered as 4 weekly treatments every 6 months for 2 years (protocol therapy). Patients had an option to receive high dose chemotherapy and autologous stem cell transplantation (off protocol) rather than MR. The primary endpoint of the trial was the CR rate, incorporating PET imaging, to VcR-CVAD induction therapy. Results Seventy-six eligible patients were enrolled between 5/07 and 10/08. Baseline characteristics include median age 62 (40-76), 59M:17F, 91% stage III/IV, and 39% with elevated LDH. Sixty-four patients (84%) completed VcR-CVAD induction therapy. Reasons for treatment discontinuation included PD (1), toxicity (4), patient preference (2), and other/unknown (5). Response information is available on 74 patients while data is outstanding on 2 patients. The ORR was 96% (73/76; 95% CI, 89%-99%), CR rate 75% (57/76; 95% CI, 64%-84%) and the PR rate 21% (16/76; 95% CI, 13%-32%). Six of the PR patients were coded as such because of protocol violations in which a post-treatment bone marrow biopsy or PET scan was not obtained. The CR rate in the 68 completely restaged patients was 84%. Forty-four patients proceeded to planned MR while 21 patients went off protocol to SCT consolidation. Median follow up is currently too short (9 months) to assess PFS and OS. The major toxicity of the treatment regimen was expected myelosuppression. Grade 3-4 non hematologic toxicities were rare. No patients developed grade 3-4 neuropathy. There were no treatment related deaths. Conclusion The VcR-CVAD induction produced high overall response (96%) and CR rate (75%) in a representative MCL patient population treated on a cooperative group protocol. The CR rate was high and comparable to the UW pilot study (77%). No episodes of severe painful peripheral neuropathy were reported using the reduced vincristine dosage and the overall toxicity profile was very acceptable. Longer follow up is needed to determine if the high CR rate will translate into improved PFS and OS. Disclosures Kahl: Genentech: Consultancy, Research Funding; Millennium: Consultancy, Research Funding. Off Label Use: Bortezomib as front line treatment in MCL. Smith:Genentech: Research Funding; Millennium: Research Funding. Advani:Seattle Genetics, Inc.: Research Funding. Horning:Genentech: Honoraria, Research Funding.


2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 7093-7093 ◽  
Author(s):  
B. Castagneto ◽  
M. Mencoboni ◽  
D. Degiovanni ◽  
A. Muzio ◽  
L. Giaretto ◽  
...  

7093 Background: Aim of this study was to evaluate the activity and toxicity of MTA and CBDCA combination as first line chemotherapy in advanced MPM. Methods: Chemonaive patients (pts) with histologically proven, an ECOG performance status (PS) 0–2, and measurable advanced MPM were considered. The schedule of administration was: pemetrexed 500 mg/m2 in combination with CBDA AUC 5, once every 21 days for 8 cycles. Results: From July 2003 to March 2005 76 pts (54 male and 22 female) have been treated with this combination chemotherapy. Median age was 62.7 years (range 40–70); median PS 0 (range 0–3); epithelial histologic findings were in 57 (75%), mixed in 13 (17.1%), sarcomatous in 3 (3.9%), and unspecified in 3 (3.9%) pts. A total of 537 cycles was administered (median 7, range 1 to 13). Grade 3 hematologic toxicity according to WHO criteria was seen in 43 (56.6%) pts (neutropenia in 30, thrombocytopenia in 8, and anemia in 5); grade 4 hematologic toxicity in 5 (6.6%) pts. The most common nonhematologic events were grade 3 nausea/vomiting in 10 (13.1%), and fever in 4 (5.3%) pts. 74 pts were evaluable for clinical response. There were 16 (21.%) partial responses (PR) and 3 (3.9%) complete responses (CR), for an overall response rate of 23.9%. 29 (38.2%) pts reported stable disease (SD). The overall survival was considered from date of diagnosis to date of death from any cause or to date of last follow-up. The median survival time for the entire group was estimated at 23 months. Conclusions: The results of this phase II study indicate that, at this dose and schedule, the combination of CBDCA and MTA is moderately active and that the profile of toxicity is acceptable in pts with advanced MPM. No significant financial relationships to disclose.


2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 2053-2053 ◽  
Author(s):  
Marshall W. Pitz ◽  
Elizabeth A. Eisenhauer ◽  
Mary Valeria MacNeil ◽  
Brian Thiessen ◽  
David R. Macdonald ◽  
...  

2053 Background: Glioblastoma (GBM) is the most aggressive malignancy of the central nervous system. The majority have genetic changes that increase the activity of the phosphatidylinositol-3-OH kinase (PI3K) signal transduction pathway, critical for cell motility, proliferation, and survival. We present the results of PX-866, an oral PI3K inhibitor, in patients (pts) with recurrent GBM. Methods: A multinomial design of response and early progression (< 8 weeks on study) was used. In stage 1 (15 pts), 0 responses and ≥ 10 early progressions would stop accrual; after full accrual, ≥ 4 responses OR ≤ 13 early progressions was prespecified as of interest. Pts with histologically confirmed GBM, at first recurrence after chemoradiation and adjuvant temozolomide were given PX-866 8 mg daily on this single-arm phase II study. MRI and clinical exam were done every cycle (8 weeks). Tumour tissue was collected for analysis of potential markers of PI3K inhibitory activity (PTEN, EGFRviii, PIK3CA mutations). Results: A total of 33 pts were enrolled, eligible and evaluable. Median age was 56 (range 35-78), 12 were female; 29 had performance status (PS) 0-1 and 4 had PS 2. Median time from initial diagnosis to enrolment was 308 days (range 141-1256). Median number of cycles was 1 (range 1-7). Thirty-two pts have discontinued therapy, 26 due to disease/symptomatic progression and 6 due to toxicity (5 LFT elevation and 1 allergic reaction). Other adverse effects (AE): fatigue (16 pts/2 grade 3), diarrhea (11 pts/5 grade 3), nausea (19 pts/1 grade 3), vomiting (11 pts/1 grade 3) and lymphopenia (29 pts/7 grade 3/4). Five pts had related serious AEs (1 LFTs, 1 GI and 3 venous thromboembolism) All pts were evaluable for response; 25 had a best response of progression, 1 had partial response (overall response rate 3%) and seven (21%) had stable disease (SD, median 7.3 months; range 3.1-13.6). Six month PFS was 17%. In preliminary analyses, no statistical association was found between SD and PTEN or EGFRviii status (results pending in 16 pts). Conclusions: PX-866 was relatively well tolerated. Overall response rate was low, and the study did not meet its primary endpoint; however, 21% of pts obtained durable stable disease. Further correlative work is required to identify the predictor of this effect. Clinical trial information: NCT01259869.


Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. 5020-5020
Author(s):  
Wenrui Yang ◽  
Bing Han ◽  
Hong Chang ◽  
Bingyi Wu ◽  
Fankai Meng ◽  
...  

Immunosuppressive therapy (IST) based on antithymoglobin (ATG) and cyclosporin (CsA) is the first-line treatment for severe aplastic anemia (SAA) patients who are unfit for transplantation,and the overall response rate (ORR) is about 70%.The utility of eltrombopag (EPAG),a TPO receptor agonist, achieved robust hematologic response in refractory and treatment-naïve SAA patients in clinical trials and some other studies. However, only a few data came from Asia countries where higher incidence of AA has been reported. A retrospective study on the use of EPAG in AA was conducted in mainland China. Aplastic anemia (transfusion dependent non-severe, severe, and very severe) patients who started eltrombopag before Feb 2019 and continued for at least 3 months either as first-line treatment or as rescue treatment, were enrolled. The maximum daily dosage of EPAG used continuously for at least 2 weeks is defined as the stable dosage. Response criteria were referred to that used in previous reports (Townsley DM, NEJM 2017; BCSH, BJH 2016). Fifty-six patients from eleven centers were enrolled in this study, including 26 males and 30 females at the median age of 39 (7-80) years. All patients were transfusion-dependent by the time of EPAG administration, and there were 14 VSAA, 24 SAA and 18 transfusion dependent non-severe aplastic anemia (TD-NSAA). Nineteen treatment-naïve patients received EPAG and IST (ATG+CsA, n=10; CsA/CsA+androgen, n=9) as first-line treatment. Thirty-seven patients were refractory to IST. Eltrombopag was administered at a median dose of 75 (25-150) mg per day for 7 (3-31) month. The median follow-up time was 9 (3-40) months. The overall response rate in patients receiving EPAG as first-line therapy was 78.9% (15/19), and most patients achieved complete response (CR) (10/15). Among the 10 patients receiving ATG+CsA, 6 patients achieved hematologic response (HR) at 3 months post-treatment, including 3 CR. Six patients were diagnosed as VSAA and three achieved HR. For the 9 patients treated with CsA/CsA+androgen, 8 achieved HR (88.9%) and 4 were CR (44.4%) at 3 months. By last follow-up, the cumulative HR rate was 70% in ATG+CsA group and 89% in CsA/CsA+ androgen group. Among the 14 responders, 11 patients receiving EPAG at a stable dosage ≤75mg/d and achieved HR at 3 months. The overall response rate in IST-refractory patients was 46% (17/37), with trilineage response in 27% patients at 3 months. For the 18 ATG+CsA refractory SAA patients,trilineage HR occurred in 4 patients (22.2%, 4/18), bi-lineage HR in one patient and single lineage HR in one patient. Thus, the total HR was 33.3% (6/18) at 3 months and increased to 44% (8/18) by last follow-up. Among the 19 CsA/CsA+ androgen refractory patients, 6 (31.5%, 6/19) achieved trilineage HR, one achieved bi-lineage HR and 4 achieved single lineage response. Total HR rate was 57.9% (11/19) at 3 months after EPAG initiation and 68% (13/19) by last follow-up, including 9 patients with trilineage HR. Among 17 responders, 13 received a stable EPAG dose of≤75mg/d. Most patients tolerated EPAG well. Adverse events occurred in 29 patients (52%) and most were mild to moderate, including gastrointestinal symptom (n=15, e.g. abdominal pain, nausea), impaired liver function (n=5), skin changes (n=7, e.g. skin pruritus and rash) and musculoskeletal pain (n=6), and venous thrombus (n=2). Eltrombopag dosage was reduced in 2 patients due to severe digestive symptoms at 100 mg/d and discontinued in one patient who suffered from upper limb venous thrombus. In conclusion, EPAG is effective and safe in treating Chinese AA patients at a daily dose of 75mg and less. The real-world result of EPAG in Chinese patients is similar to those reported in Western countries. Disclosures No relevant conflicts of interest to declare.


2017 ◽  
Vol 35 (19) ◽  
pp. 2125-2132 ◽  
Author(s):  
Robert Chen ◽  
Pier Luigi Zinzani ◽  
Michelle A. Fanale ◽  
Philippe Armand ◽  
Nathalie A. Johnson ◽  
...  

Purpose Hodgkin Reed-Sternberg cells harbor alterations in chromosome 9p24.1, leading to overexpression of programmed death-ligand 1 (PD-L1) and PD-L2. Pembrolizumab, a programmed death 1–blocking antibody, demonstrated a high overall response rate (ORR) in patients with relapsed or refractory classic Hodgkin lymphoma (rrHL) in phase I testing. Methods KEYNOTE-087 ( ClinicalTrials.gov identifier, NCT02453594) was a single-arm phase II study of pembrolizumab in three cohorts of patients with rrHL, defined on the basis of lymphoma progression after (1) autologous stem cell transplantation (ASCT) and subsequent brentuximab vedotin (BV); (2) salvage chemotherapy and BV, and thus, ineligible for ASCT because of chemoresistant disease; and (3) ASCT, but without BV after transplantation. Patients received pembrolizumab 200 mg once every 3 weeks. Response was assessed every 12 weeks. The primary end points were ORR by central review and safety. Results A total of 210 patients were enrolled and treated (69 in cohort 1, 81 in cohort 2, and 60 in cohort 3). At the time of analysis, patients received a median of 13 treatment cycles. Per central review, the ORR was 69.0% (95% CI, 62.3% to 75.2%), and the complete response rate was 22.4% (95% CI, 16.9% to 28.6%). By cohort, ORRs were 73.9% for cohort 1, 64.2% for cohort 2, and 70.0% for cohort 3. Thirty-one patients had a response ≥ 6 months. The safety profile was largely consistent with previous pembrolizumab studies. Conclusion Pembrolizumab was associated with high response rates and an acceptable safety profile in patients with rrHL, offering a new treatment paradigm for this disease.


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e15066-e15066
Author(s):  
P. Fedele ◽  
G. Di Maggio ◽  
S. Leo ◽  
L. Nanni ◽  
F. Giuliani ◽  
...  

e15066 Introduction: FOLFOX regimen represents a standard first-line therapy for ACRC pts. Oral capecitabine (XEL) has been shown to be a convenient and well tolerated alternative to intravenous 5-fluorouracil (5-FU) in the treatment of ACRC. Experimental data demonstrated the synergism of XEL with Oxaliplatin (OHP), but the questions about the most appropriate dosage and schedule of capecitabine have not yet been completely resolved. Taking into account these data the GOIM started a phase II study to evaluate the activity and the toxicity of biweekly administration of XEL plus OHP (XELOX-2) in ACRC pts. Methods: Previously untreated pts with histological diagnosis of metastatic colorectal cancer, measurable disease, ECOG PS<2, and age 18–75 yrs entered into this trial. The schedule of treatment was as follows: OHP at 100 mg/mq i.v. on days 1 and XEL at 2,000 mg/mq p.o. in two daily administrations from the 1 to the 7 day, every 2 weeks. RECIST and NCI criteria were employed to determine the activity and the toxicity of this regimen. Results: Fifty-one pts have been enrolled and up to now forty-seven are evaluable for activity and toxicity. The main characteristics of the entered pts were: sex (M/F) 38/13, median age 66,5 yrs (range 54–75 yrs), 28 (55%) single and 23 (45%) multiple site of disease. The main site of disease were liver in 38 pts (75%), lymph-nodes in 17 (33%), lung in 9 (18%). Two CR (4%) and 22 PR (47%), 13 SD (28%) and 10 PD (21%) were observed, with an overall response rate of 51% and a disease control rate (CR+PR+SD) of 79%. Median TTP was 5+ months (range 2–19). A total of 413 cycles were administered. In the evaluable pts the main toxicity rate (G1- 2 vs G3–4) were as follows: thrombocytopenia 51/6, anemia 42/0, neutropenia 15/0, nausea/vomiting 30/2, diarrhea 19/2, neurotoxicity 57/0 and asthenia 30/2. Only one pts presented G4 toxicity (diarrhea). Conclusions: These preliminary data show that the combination of XEL and OHP with a biweekly administration is active and well tolerated in ACRC pts. No significant financial relationships to disclose.


Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 1102-1102
Author(s):  
Henry Y. Dong

Abstract Classical hairy cell leukemia (HCL) coexpressing both CD25 and CD103 is highly responsive to the treatment with cladribine and pentostatin (complete response rate, 75–95%; overall response rate, 86–100%). HCL variant in the literature is characterized by HCL-like morphology, lack of CD25 coexpression, and variable immunophenotypes indistinguishable from those of splenic marginal zone B cell lymphoma (Matutes, et al. Leukemia2001; 15:184). Importantly, HCL variant is associated with a poor response to standard therapy. It is unclear if HCL cases lacking CD25 but otherwise phenotypically identical to classical HCL belong to HCL or HCL variant, and if the standard therapy is effective in these patients. To further delineate features of HCL and its variants, we analyzed immunophenotyping data, by flow cytometry or immunohistochemistry, or by both when feasible, in 260 consecutive patients with HCL (Dong, et al. Mod Pathol2003; 16:230A). The diagnosis was established by hairy cell morphology together with coexpression of strong CD20 and CD22, bright CD11c, and CD103. Clinical data were obtained for a subset of cases in which expression of CD25 was distinctly absent. Our results were consistent with the literature in that HCL has a consistent and unique immunophenotypic profile, which allowed detection of residual HCL by flow cytometry at levels as low as 0.1% of total cells. In addition, approximately 20% and 37% of classical HCL coexpressed CD10 and BCL-1 respectively, which may significantly confuse the diagnosis in an incomplete work-up. Interestingly, there were 43 cases (20% of all CD103+ cases) that lacked CD25 but were otherwise identical to classical HCL in their uniform phenotypic profiles. Compared with classical HCL, patients with the CD25- HCL were generally older (medium age: 59yrs vs. 79yrs; p=0.001) and frequently had leukocytosis (medium WBC: 3.0x109/L vs. 24.5x109/L; p=0.014). Among 14 patients with follow up data, 7 were treated with cladribine or pentostatin. The complete response (CR) rate was 14.3% (1/7) and the overall response rate was 57.1% (4/7). Three patients had no response. One patient who had an initial partial response (PR) to pentostatin died of the disease 10 months after the diagnosis. Of others, an additional two patients achieved CR and PR upon initial treatment with fludarabine and Rituxamab respectively. Four patients were untreated and were alive with disease (follow up, 21–41 months). One patient died of the disease in 2 years and treatment for this patient was unknown. These clinical features overlapped with those of HCL variant in the literature. However, unlike the HCL variant that has significant phenotypic heterogeneity, including lack of CD11c and CD103 in a substantial number of cases, the CD25- HCL was remarkably uniform in phenotype and can be easily identified by immunophenotyping. In conclusion, these results suggest that lack of CD25 in HCL defines a clinically distinct chronic lymphoproliferative disorder, which appears to require different clinical management.


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