Sequential Phase II Studies of Flavopiridol by 72-Hour Continuous Infusion and 1-Hour Intravenous Bolus for the Treatment of Relapsed B-Cell Chronic Lymphocytic Leukemia: Results from CALGB Study 19805.

Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 3485-3485
Author(s):  
John C. Byrd ◽  
Bercedis L. Peterson ◽  
Janice L. Gabrilove ◽  
Olatoyosi M. Odenike ◽  
Michael R. Grever ◽  
...  
Keyword(s):  
Continuous Infusion ◽  
Phase Ii ◽  
Tumor Lysis Syndrome ◽  
Progression Free Survival ◽  
Lymphocytic Leukemia ◽  
Clinical Activity ◽  
Intravenous Bolus ◽  
Phase Ii Studies ◽  
Grade 3

Abstract Flavopiridol has in vitro activity in CLL and promotes apoptosis independent of p53 function or prior fludarabine exposure. We sought to determine if flavopiridol administered using two different schedules has activity in CLL. Patients with previously treated CLL were enrolled on two sequentially performed phase II studies. Patients in the first trial received flavopiridol (50 mg/m2 daily) as a continuous infusion (CI) over 72-hours every 2 weeks. Patients in the second trial received flavopiridol 50 mg/m2 as a 1-hour intravenous bolus (IVB) daily for three days repeated every 3 weeks. Patients received up to 6 (CI cohort) or 8 (IVB cohort) cycles of therapy. Fifteen patients enrolled in the 72-hour CI phase II trial; 6 (40%) had intermediate (Rai stage I or II) and 9 (60%) high (Rai stage III and IV) risk stages. No responses were noted in this group with 27% having stable disease (SD) and 73% progressive disease (PD). Thirty-six patients enrolled in the IVB study, with 13 (36%) having intermediate and 23 (64%) having high-risk disease. Four patients (11%) had partial responses, 19 (53%) SD, and 13 (36%) PD. The progression-free survivals for responders in the IVB study were 2.9, 3.2, 8.7, and 19.3 months. The median progression-free survival was 2.1 months (95% confidence interval [CI] 1.8 – 3.8) for patients in the CI study and 3.2 months (95% CI [2.5 – 7.4]) for the IVB study. The median overall survival was 27 months (95% CI [20–42]) for the CI study and 24 months (95% CI [18–31]) for the IVB study. Toxicity was manageable and included mainly myelosuppression (granulocytopenia and thrombocytopenia), infections, diarrhea and fatigue. Grade 3 and 4 toxicities were 20% and 27%, respectively, on the CI study and 39% and 33% on the IVB study. One patient on the IVB study had tumor lysis syndrome that was managed medically and did not require dialysis. There was one on-study death following a myocardial infarction on the IVB study. We conclude that flavopiridol has modest, schedule-dependent clinical activity in relapsed CLL and warrants future investigation utilizing alternative schedules of administration.

scholarly journals Functional and clinical relevance of VLA-4 (CD49d/CD29) in ibrutinib-treated chronic lymphocytic leukemia

2018 ◽  
Vol 215 (2) ◽  
pp. 681-697 ◽  
Author(s):  
Erika Tissino ◽  
Dania Benedetti ◽  
Sarah E.M. Herman ◽  
Elisa ten Hacken ◽  
Inhye E. Ahn ◽  
...  
Keyword(s):  
Chronic Lymphocytic Leukemia ◽  
Progression Free Survival ◽  
Cell Receptor ◽  
Lymphocytic Leukemia ◽  
Clinical Activity ◽  
Independent Manner ◽  
Btk Inhibitor

The Bruton’s tyrosine kinase (BTK) inhibitor ibrutinib, which antagonizes B cell receptor (BCR) signals, demonstrates remarkable clinical activity in chronic lymphocytic leukemia (CLL). The lymphocytosis experienced by most patients under ibrutinib has previously been attributed to inhibition of BTK-dependent integrin and chemokine cues operating to retain the tumor cells in nodal compartments. Here, we show that the VLA-4 integrin, as expressed by CD49d-positive CLL, can be inside-out activated upon BCR triggering, thus reinforcing the adhesive capacities of CLL cells. In vitro and in vivo ibrutinib treatment, although reducing the constitutive VLA-4 activation and cell adhesion, can be overcome by exogenous BCR triggering in a BTK-independent manner involving PI3K. Clinically, in three independent ibrutinib-treated CLL cohorts, CD49d expression identifies cases with reduced lymphocytosis and inferior nodal response and behaves as independent predictor of shorter progression-free survival, suggesting the retention of CD49d-expressing CLL cells in tissue sites via activated VLA-4. Evaluation of CD49d expression should be incorporated in the characterization of CLL undergoing therapy with BCR inhibitors.

Phase II Trial of Weekly Intravenous Gemcitabine With Continuous Infusion Fluorouracil in Patients With Metastatic Renal Cell Cancer

2000 ◽  
Vol 18 (12) ◽  
pp. 2419-2426 ◽  
Author(s):  
Brian I. Rini ◽  
Nicholas J. Vogelzang ◽  
Mary C. Dumas ◽  
James L. Wade ◽  
David A. Taber ◽  
...  
Keyword(s):  
Continuous Infusion ◽  
Phase Ii ◽  
Renal Cell ◽  
Response Rate ◽  
Cell Cancer ◽  
Objective Response ◽  
Progression Free Survival ◽  
Free Survival ◽  
Phase Ii Studies ◽  
Metastatic Rcc

PURPOSE: To determine the clinical response rate of the combination of weekly intravenous (IV) gemcitabine with continuous infusion fluorouracil (5-FU) in patients with metastatic renal cell carcinoma (RCC). PATIENTS AND METHODS: Between June 1998 and February 1999, 41 patients with metastatic RCC were enrolled onto this multi-institutional phase II study of gemcitabine 600 mg/m2 over 30 minutes on days 1, 8, and 15 and 5-FU 150 mg/m2/d via continuous IV infusion through a permanent catheter on days 1 to 21 of a 28-day cycle. Patients had a Cancer and Leukemia Group B performance status of 0 or 1, with a median time since diagnosis of metastatic disease of 10 months (range, 0 to 129 months). Thirty-three patients (80%) had multiple metastatic sites, and 34 patients (83%) had prior chemotherapy or immunotherapy. RESULTS: Of the 39 assessable patients, there were no complete responses but seven partial responses (objective response rate = 17%; 95% confidence interval, 8% to 34%). Five minor responses (25% to 50% decreased tumor size) were also observed. The duration of response for the seven partial responders was 2, 3, 7, 8, 10, 11, and 14 months. Median progression-free survival for the gemcitabine/5-FU group was 28.7 weeks versus 8 weeks for a similar cohort of patients treated on previous phase II studies at the University of Chicago (P = .008). The regimen was well tolerated, with fatigue, mucositis, nausea/vomiting, and grade 2 hematologic toxicities being most common. CONCLUSION: Weekly gemcitabine with continuous infusion 5-FU is an active combination in patients with metastatic RCC. Therapy was well tolerated and produced an improvement in progression-free survival over historical controls.

A Phase II Study of the TNF-α Inhibitor Etanercept and Thrice Weekly Rituximab: Evidence of Clinical Activity in the Absence of del(17p13.1) Genomic Abnormalities.

Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 3469-3469 ◽  
Author(s):  
Thomas S. Lin ◽  
Nyla A. Heerema ◽  
Jennifer Swenor ◽  
Margaret S. Lucas ◽  
Mollie E. Moran ◽  
...  
Keyword(s):  
Phase Ii ◽  
Antibody Therapy ◽  
P53 Gene ◽  
Lymphocytic Leukemia ◽  
Clinical Activity ◽  
Tnf Α ◽  
Grade 3 ◽  
Induced Apoptosis ◽  
Anti Cd20 ◽  
Necrosis Factor

Abstract The monoclonal anti-CD20 antibody rituximab (Rituxan) induces the death of chronic lymphocytic leukemia (CLL) cells in part through apoptosis. Tumor necrosis factor (TNF)-α and other cytokines up-regulate bcl-2 and other anti-apoptotic proteins, thereby inhibiting apoptosis. In addition, TNF-α may play a role in the cytokine release syndrome and infusion toxicity associated with monoclonal antibody therapy. Therefore, antagonists of TNF-α represent potential therapeutic agents that may be able to decrease infusion toxicity and enhance rituximab-induced apoptosis. We initiated a phase II trial of etanercept in combination with rituximab in patients (pts) with relapsed CLL or small lymphocytic lymphoma (SLL), with the goals of increasing clinical activity of rituximab and reducing infusion toxicity through neutralization of TNF-α. Pts received etanercept 25 mg subcutaneously (SC) twice weekly during weeks 1–5 and rituximab 375 mg/m2 intravenously (IV) three times weekly during weeks 2–5. Stepped up dosing of rituximab was used with the first two rituximab treatments. From 12/02 to 10/03, 19 pts (14 male) with a median of 2 prior therapies (range 1–8) were enrolled. Therapy was generally well tolerated, although 5 pts developed grade 4 neutropenia and 5 pts developed grade 3–4 infection or neutropenic fever. Four of 19 pts achieved an NCI 96 partial response, with no responses in 8 pts with del(17p13.1), corresponding to loss of the p53 gene. In contrast, 4 of 11 pts without del(17p13.1) achieved a PR, including 1 pt with a complex karyotype. This study was stopped for interim analysis and has reopened, with the exclusion of patients with a del(17p13.1) based upon the response outcome above and a previous preliminary report by our group demonstrating that rituximab was ineffective for del(17p13.1) CLL (Cancer Res63:36, 2003). We conclude that the combination of rituximab and etanercept has clinical activity in heavily treated, relapsed CLL pts without del(17p13.1), irrespective of prior rituximab treatment. Accrual to this study continues, and the results will be updated at the 2004 ASH meeting.

A phase I study of the pan-Bcl2 family inhibitor GX15–070, administered as a 3-hour weekly infusion in patients with refractory solid tumors or lymphomas

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 3081-3081 ◽  
Author(s):  
K. Firozvi ◽  
J. Hwang ◽  
N. Hansen ◽  
S. Malik ◽  
M. Maclean ◽  
...  
Keyword(s):  
Median Number ◽  
Initial Distribution ◽  
Lymphocytic Leukemia ◽  
Response To Treatment ◽  
Clinical Activity ◽  
Elimination Kinetics ◽  
Bcl2 Family ◽  
Best Response ◽  
Grade 3

3081 Background: GX15–070 is an antagonist of the BH3-binding groove of the bcl-2 family of anti apoptotic proteins. GX15–070 activates apoptosis in vitro and exhibits clinical activity in chronic lymphocytic leukemia (O’Brien et al, ASH 2005) with a recommended phase II dose of 28 mg/m2 every 3 weeks with DLT of grade 3 infusional CNS toxicities. Methods: In a standard titration design, 4 cohorts of 3 patients (pt) were treated with 5mg/m2 - 14 mg/m2 IV infused over 3 hours, weekly. Each cycle of therapy consisted of 4 weekly infusions. Pharmacokinetics (PK) and pharmacodynamic (PD) response based on plasma oligonucleosomal DNA levels were evaluated. Results: N=15 pts were treated. Median age was 58 (range 24–71). Median number of prior regimens was 4 (range 1–11). A total of 105 infusions (26 cycles) was administered. GX15–070 underwent first order elimination kinetics with a short initial distribution phase (α t1/2=0.6 h), followed by a longer elimination γphase (t1/2=43.8 h). At the 14 mg/m2 dose level, median C max and AUC values were 98 ng/ml and 276 ng.hr/ml, respectively. The coefficient of variation was low at 38%. Adverse events have mostly been observed during or shortly after the infusion and have been transient. The most common pertain to the central nervous and gastro-intestinal system (drowsiness, euphoria, ataxia, and abdominal pain). Most toxicities were mild to moderate, with the exception of grade 3 pain experienced by 2/2 pts with Hodgkin’s disease, that resolved rapidly but resulted in treatment discontinuation in 1 patient. One episode of Grade 3 infusional CNS toxicity was reported at 14 mg/m2 requiring the inclusion of 6 patients with no further DLT. No neutropenia, thrombocytopenia or lymphopenia have been reported. The MTD has not been reached. Mean increase in plasma oligonucleosomal DNA was 36 fold (range 0–182 fold) over baseline. Best response to treatment to date : SD ≥ 8 weeks (4); PD (5); too early (6). Conclusion: Weekly GX15–070 as been well tolerated at doses showing biological activity. Dose escalation will be pursued up to 28 mg/m2 weekly. No significant financial relationships to disclose.

A phase I and pharmacokinetic/pharmacodynamic study of vorinostat (suberoylanilide hydroxamic acid, SAHA) in Japanese patients with solid tumor

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 14015-14015 ◽  
Author(s):  
Y. Fujiwara ◽  
N. Yamamoto ◽  
K. Yamada ◽  
Y. Yamada ◽  
T. Shimoyama ◽  
...  
Keyword(s):  
Phase I ◽  
Solid Tumor ◽  
International Workshop ◽  
Japanese Patients ◽  
Cancer Center ◽  
Tumor Growth Inhibition ◽  
Clinical Activity ◽  
Phase Ii Studies ◽  
Grade 3

14015 Background: Vorinostat (Zolinza™), a potent inhibitor of histone deacetylase (HDAC), induces tumor growth inhibition, differentiation, and apoptosis in vitro. Increasing evidence has revealed clinical activity of vorinostat in patients (pts) with various types of cancer including cutaneous T-cell lymphoma. Methods: Japanese pts with solid tumor who failed standard therapy were enrolled in a single institution, National Cancer Center hospital, Phase I study. Pts were dosed with vorinostat BID for 14 consecutive days followed by 7 day-rest starting at 100 mg and escalated by 100 mg BID until MTD was established. Subsequently single daily dosing was tested at 400 and 500 mg. PK was measured at total of 41 timepoints. Response was also evaluated according to the international workshop criteria. Results: MTD was established as 200 mg BID and 500 mg QD for 14 consecutive days followed by a 7 day-rest. All 18 enrolled pts were assessed for safety and PK. Median age was 58 yrs [25–72]. Ten of 18 pts had lung cancer. Two of 6 pts receiving 200 mg BID experienced DLTs: Grade 4 thrombocytopenia, and Grade 4 thrombocytopenia and Grade 3 anorexia. None of 3 pts receiving 400 mg QD experienced DLT. One of 6 pts receiving 500 mg QD experienced Grade 3 anorexia and fatigue. AUC of vorinostat increased generally proportional to dose in the range of 100–500 mg. PK was not greatly affected by multiple doses. Intact drug was hardly excreted in urine (<1% of dose). PK profile is similar to that established in US pts. As of Dec 2006, 1 pt with invasive thymoma received 200 mg BID for 1 yr. Nine pts achieved SD as best response. Conclusions: This study demonstrates the safety of vorinostat 200 mg BID and 500 mg QD for 14 consecutive days followed by 7 day-rest. These would be the RD for Phase II studies on this schedule. No significant financial relationships to disclose.

X-TRAP: Phase I/II study of capecitabine (X) plus ziv-aflibercept (TRAP) in metastatic colorectal cancer (mCRC).

2016 ◽  
Vol 34 (4_suppl) ◽  
pp. 687-687 ◽  
Author(s):  
John H. Strickler ◽  
Fatima A. Rangwala ◽  
Christel Rushing ◽  
Donna Niedzwiecki ◽  
Ivy Altomare ◽  
...  
Keyword(s):  
Phase I ◽  
Phase Ii ◽  
Oral Mucositis ◽  
Progression Free Survival ◽  
Response Assessment ◽  
Clinical Activity ◽  
Combination Methods ◽  
Grade 3 ◽  
Recommended Phase Ii Dose ◽  
Expansion Cohort

687 Background: Patients (pts) with chemotherapy refractory mCRC have a poor prognosis, with a median survival of approximately 6 months (mos). Ziv-aflibercept is FDA-approved in combination with FOLFIRI for the 2nd line treatment of mCRC, but its tolerability and activity in pts with chemotherapy refractory disease is unknown. We designed a phase I/II study of X+TRAP to define the recommended phase II dose (RPTD), and assess the safety, tolerability, and clinical activity for the combination. Methods: Eligible pts with refractory, advanced solid tumors were enrolled in a 3+3 dose escalation cohort (ESC) to identify the RPTD. Cycle length was 21 days. Radiographic assessment occurred every 3 cycles. X was administered po bid on days 1-14. The dose of X was 850 mg/m2 bid in ESC cohort 1 and 1,000 mg/m2 bid in ESC cohort 2. TRAP was administered on day 1 of each cycle (6 mg/kg IV). Pts with mCRC that had progressed on all standard therapies were then enrolled in a single-arm, phase II expansion cohort (EXP) and treated at the RPTD. The primary endpoint was progression free survival (PFS). Secondary endpoints included response rate (RR) and overall survival (OS). Results: As of 6/19/2015, 55 pts were evaluable for toxicity (13 ESC; 42 EXP) and 47 pts were evaluable efficacy (12 ESC; 35 EXP). In the phase I ESC cohorts, 3 DLTs occurred (1/6 cohort 1; 2/6 cohort 2): GI perforation (1), oral mucositis (1), and fatigue (1). The RPTD was X (850 mg/m2 po bid, days 1-14) and TRAP (6 mg/kg IV, day 1). In the ESC and EXP cohorts, there were no treatment related grade 4/5 adverse events (AEs). The most frequently reported treatment related AEs (grades 2+3; grade 3) were palmar-plantar erythrodysesthesia (36%; 5%), hypertension (29%; 20%), and oral mucositis (18%; 4%). Median follow up in the phase II EXP cohort was 9.3 mos (95% C.I., 6.5–11.1). Median PFS was 4.1 mos (95% C.I., 2.3-4.8). Response assessment in 35 pts (n; %): partial response (PR) (2; 6%); stable disease (SD) (12; 34%); SD > 6 mos (2; 6%). Median OS was 9.3 mos (95% C.I., 6.2–n/a). Conclusions: The combination of X+TRAP demonstrated an acceptable safety profile, with encouraging clinical activity at the RPTD. Recruitment for the phase II EXP cohort is now complete. Clinical trial information: NCT01661972.

Bendamustine in Combination with Rituximab (BR) for Patients with Relapsed Chronic Lymphocytic Leukemia (CLL): A Multicentre Phase II Trial of the German CLL Study Group (GCLLSG).

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 3106-3106 ◽  
Author(s):  
Kirsten Fischer ◽  
Stephan Stilgenbauer ◽  
Carmen D. Schweighofer ◽  
Jasmin Renschler ◽  
Raymonde Busch ◽  
...  
Keyword(s):  
Phase Ii ◽  
Phase Ii Trial ◽  
Residual Disease ◽  
Ex Vivo ◽  
Lymphocytic Leukemia ◽  
Fish Analysis ◽  
Entire Study ◽  
Mutational Status ◽  
Grade 3

Abstract Introduction: Bendamustine has shown considerable activity in monotherapy for solid and lymphoid malignancies including CLL and has been used for more than 30 years in anti-cancer treatment. In vitro and ex vivo studies have demonstrated synergistic pro-apoptotic effects of bendamustine and the CD20 antibody rituximab (BR) in primary B-CLL cells. Encouraging clinical results have been obtained using BR combination treatment in relapsed/refractory NHL or mantle cell lymphoma. The present phase II trial represents the first study assessing efficacy and toxicity of bendamustine in combination with rituximab in pts with relapsed/refractory B-CLL. Patients and Methods: Between March 2006 and June 2007 81 pts with relapsed/refractory B-CLL and a median number of 2 pretreatments were enrolled into this trial. Bendamustine was given at a dose of 70 mg/m2 on day 1 and 2, combined with 375mg/m2 rituximab for the first cycle and 500 mg/m2 for the second and subsequent cycles. BR treatment was administered every 28 days up to 6 courses. Blood samples were taken for molecular cytogenetics by fluorescence in situ hybridization (FISH), analysis of the IgVH mutational status and expression of ZAP70/CD38. Assessment of minimal residual disease (MRD) was evaluated in peripheral blood and bone marrow by 4-colour flow cytometry. Results: So far data of 31 pts (median age 66 years) with a total of 126 treatment cycles are available for analysis. There was notable toxicity with 48 reported CTC grade 3/4 adverse events, particularly myelosuppression and infections: grade 3/4 anemia occurred in 6.3.%, leukopenia/neutropenia in 10.8% and thrombocytopenia in 11.9% of all courses. 6 episodes of CTC grade 3/4 infections were documented: 1 sinusitis maxillaris, 1 FUO and 1 abscess, all of them being reversible after antibiotics. However, 3 pts died due to severe infections including 2 fatal pneumonias and 1 urosepsis. One pt died due to myocardial infarction. Regarding efficacy, 23 pts were evaluable for response: The overall response rate (ORR) was 65.2% with a CR rate of 13.0% (3 pts) and a PR rate of 52.2% (12 pts). No molecular remission was observed by 4-colour cytometry. Stable disease (SD) was achieved in 26.1% (6 pts) whereas 2 pts had progressive CLL (PD, 8.7%). Responses were observed in the majority of pts with genomic aberrations 11q deletion (ORR: 4/5) and trisomy 12 (ORR: 2/3), while none of the pts with 17p deletion (ORR: 0/4) was responsive (P=0.006). Conclusion: Bendamustine plus rituximab is an effective regimen in refractory/relapsed B-CLL. Major treatment toxicities were myelosuppression and infections. Updated data with respect to toxicity and efficacy based on the entire study population will be available for the Meeting.

scholarly journals Final Analysis of the RO-CHOP Phase Ib/II Study: Romidepsin in Association with CHOP in Patients with Peripheral T-Cell Lymphoma (PTCL)

Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 504-504 ◽  
Author(s):  
Jehan Dupuis ◽  
Franck Morschhauser ◽  
Herve Ghesquieres ◽  
Herve Tilly ◽  
Olivier Casasnovas ◽  
...  
Keyword(s):  
T Cell ◽  
Phase Ii ◽  
Cell Lymphoma ◽  
Progression Free Survival ◽  
T Cell Lymphoma ◽  
Phase Iii ◽  
Hematological Toxicity ◽  
Phase Ib ◽  
Phase Ii Studies ◽  
Grade 3

Abstract Background: Romidepsin is a histone deacetylase inhibitor approved by the FDA for patients with cutaneous T-cell lymphoma and PTCL who have received at least 1 prior therapy. In recurrent/refractory PTCL, it has been evaluated as a single agent in 2 phase II studies with overall response rates of 25-38%(Piekarz, Blood 2011 & Coiffier, J Clin Oncol 2012). Toxicity is mainly hematologic and digestive. We here present the final analysis of a phase Ib/II trial aiming to evaluate the safety, tolerability and efficacy of romidepsin in association with CHOP in patients with previously untreated PTCL. Patients & methods: Patients with PTCL were planned to receive 8 cycles of CHOP (cyclophosphamide 750 mg/m2 day 1, doxorubicin 50 mg/m2 day 1, vincristine 1,4 mg/m2 day 1, prednisone 40 mg/m2 days 1 – 5) in association with varying doses of romidepsin. Based on pharmacokinetic data and results of previous phase II studies, the starting dose of 10 mg/m2 days 1 & 8 was chosen. The dose-variation scheme followed a traditional “3+3” design. Dose-limiting toxicities (DLT) were considered during the first 2 cycles. DLT was initially defined as: Non hematological toxicity grade 3-4 or hematological toxicity grade 3 lasting more than 7 days or grade 4 lasting more than 3 days. The protocol was subsequently amended to tolerate if lasting less than 10 (grade 3) or 7 days (grade 4). Results: Eighteen patients have been treated in phase Ib of the study (Dupuis, Hematol Oncol 2013). Significant, albeit tolerable hematological toxicity having been observed in the first two cohorts, the definition of DLT was modified during the course of the study. The dose of 12 mg/m2 was chosen as the recommended dose for phase II. Nineteen patients were treated in the phase II part of the study. Two patients had an early cardiac event (myocardial infarction) and were excluded from the efficacy analysis. A third patient had a cardiac event (acute cardiac failure) after cycle 1 day one and continued on CHOP alone. There were no deaths attributable to toxicity. Late hematological toxicity was observed, thus some cycles after cycle 2 were delivered with only one administration of romidepsin at day 1: Among 509 planned romidepsin administrations, 93 (18%) were cancelled on decision of the investigator, mainly during the last 2 cycles and mainly because of hematological toxicity. Sixty-seven percent of patients had at least on serious adverse event (SAE). The most frequent SAEs were: Febrile neutropenia (13.5%), general physical health deterioration (13.5%), lung infection (10.8%), vomiting (8%). Thirty-eight percent of patients had Grade 3-4 neutropenia at any time of the study, 19% grade 3-4 thrombocytopenia, 8% grade 3-4 anemia. Observed response rates (IHP 2007 criteria) were (n=35): Complete response 51%, partial response 17%, and progressive disease 25%. With a median follow-up of 17.5 months, the estimated progression-free survival is 57% at 18 months with 5 progressions among the 24 responding patients. The overall survival rate at 18 months is 76,5%. Longer follow-up will be presented during the meeting. Conclusion: Romidepsin can be combined with CHOP at the price of foreseeable hematological toxicity. Some cardiovascular events have been observed but the relationship with romidepsin is questionable. The progression-free survival rates seem promising, and the combination of romidepsin and CHOP is actually compared with CHOP alone in the setting of a phase III randomized trial (phase III RO-CHOP study). References : 1. Piekarz R, Blood. 2011;117(22):5827-34. 2. Coiffier B, J Clin Oncol. 2012;30(6):631-6 3. Dupuis J, Hematological Oncology 2013;31(Suppl.1):96-150 Disclosures Off Label Use: Romidepsin in association with CHOP for first line treatment of peripheral T-cell lymphoma. Morschhauser:Celgene: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees. Tilly:Celgene: Research Funding. Coiffier:Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees.

Results of Phase II Study of Lenalidomide (L) {Revlimid®} in Patients with Relapsed or Refractory Chronic Lymphocytic Leukemia (CLL).

Blood ◽  
2005 ◽  
Vol 106 (11) ◽  
pp. 447-447 ◽  
Author(s):  
Asher Alban Chanan-Khan ◽  
Kena C. Miller ◽  
Laurie DiMiceli ◽  
Swaminathan Padmanabhan ◽  
David Lawrence ◽  
...  
Keyword(s):  
Phase Ii ◽  
Stable Disease ◽  
Phase Ii Study ◽  
Tumor Lysis Syndrome ◽  
Response Assessment ◽  
Lymphocytic Leukemia ◽  
Clinical Activity ◽  
Absolute Lymphocyte Counts ◽  
Intent To Treat ◽  
Almost All

Abstract Introduction: Lenalidomide (L) is a compound in a new group of drugs called ImiDs® which have Immunomodulatory properties and with anti-tumor activity reported in multiple myeloma and MDS. Although the exact mechanism of action of L is unknown, they are reported to affect the tumor microenvironment through modulation of critical cytokines such as TNF-a, VEGF and IL-6. These cytokines also play an important role in pathogenesis of CLL. Based on these properties we have investigated and previously reported on the anti-leukemic activity of thalidomide in CLL. We subsequently conducted a phase II study with L, to evaluate its clinical activity in pts with relapse (rel) or refractory (ref) CLL. Here we present the results of this study. Patients and Methods: CLL pts with rel or ref disease were eligible. L was given at 25mg PO QD x 21 days followed by 7 days rest on a 28 day cycle. Absolute lymphocyte counts (ALC) were measured at Day 0, 7 and 30. Response was assessed at day 30 and monthly thereafter using the NCI-WG 1996 criteria. Pts with stable disease (SD) or better response were continued on therapy for a maximum of 12 months while those with progressive disease (PD) were to receive rituximab (R) (375mg/m2) added to L. Pts were considered evaluable for response if they completed at least 2 months of treatment. Target enrollment is 29 patients. Results: Twenty nine pts, median age of 64 years (range: 47–75) were enrolled. All pts are available for toxicity and 17 out of 29 pts available for response evaluation. Three pts on treatment are too early for response assessment while 9 pts are off study (2 withdrew consent and 5 got < 2 months of therapy due to toxicity). Response is reported based on evaluable pts. Complete remission (CR) was noted in 2/17 (11.7%) pts while partial remission (PR) was noted in 9/17 (52.9%) pts. Additional 5/17 (29.4%) pts, currently on treatment, achieved stable disease (SD). ORR (CR+PR) in the intent to treat population is 42.3% (11/26, excluding pts currently too early for response assessment). To date only 1 pt has PD after 3 months of L and is on LR per protocol. Toxicity: Flare reaction (tender swelling of lymph nodes and/or rash) was the most common SE noted in almost all pts. Other important SE were tumor lysis syndrome (n=2); grade 3/4 hematologic toxicities (n=7) and febrile neutropenia (n=3). Conclusion: This is the first study to report the clinical activity of L in pts with CLL. Our findings are encouraging and provide evidence of the anti-CLL activity of L. Although some of the pts did achieve a CR, longer follow-up will determine the durability of responses noted to date. Update results of this study along with toxicity profile of L in CLL will be presented at the meeting.

scholarly journals Substantial Susceptibility of Chronic Lymphocytic Leukemia to BCL2 Inhibition: Results of a Phase I Study of Navitoclax in Patients With Relapsed or Refractory Disease

2012 ◽  
Vol 30 (5) ◽  
pp. 488-496 ◽  
Author(s):  
Andrew W. Roberts ◽  
John F. Seymour ◽  
Jennifer R. Brown ◽  
William G. Wierda ◽  
Thomas J. Kipps ◽  
...  
Keyword(s):  
Chronic Lymphocytic Leukemia ◽  
Phase I ◽  
Progression Free Survival ◽  
Lymphocytic Leukemia ◽  
Leukemic Cells ◽  
Refractory Disease ◽  
Phase Ii Studies ◽  
Continual Reassessment ◽  
Related Proteins

Purpose BCL2 overexpression is a hallmark of chronic lymphocytic leukemia (CLL). The novel BH3 mimetic navitoclax (ABT-263) specifically inhibits BCL2 and related proteins BCL-xl and BCL-w, potently inducing apoptosis of CLL cells in vitro. A phase I trial in patients with CLL was conducted to evaluate the safety, pharmacokinetics, and biologic activity of oral navitoclax. Patients and Methods Twenty-nine patients with relapsed or refractory CLL received daily navitoclax for 14 days (10, 110, 200, or 250 mg/d; n = 15) or 21 days (125, 200, 250, or 300 mg/d; n = 14) of each 21-day cycle. Dose escalation decisions were informed by continual reassessment methodology. Results Lymphocytosis was reduced by more than 50% in 19 of 21 patients with baseline lymphocytosis. Among 26 patients treated with navitoclax ≥ 110 mg/d, nine (35%) achieved a partial response and seven maintained stable disease for more than 6 months. Median treatment duration was 7 months (range, 1 to ≥ 29 months). Median progression-free survival was 25 months. Activity was observed in patients with fludarabine-refractory disease, bulky adenopathy, and del(17p) CLL. Thrombocytopenia due to BCL-xl inhibition was the major dose-limiting toxicity and was dose-related. Low MCL1 expression and high BIM:MCL1 or BIM:BCL2 ratios in leukemic cells correlated with response. We determined that the navitoclax dose of 250 mg/d in a continuous dosing schedule was optimal for phase II studies. Conclusion BCL2 is a valid therapeutic target in CLL, and its inhibition by navitoclax warrants further evaluation as monotherapy and in combination in this disease.

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