Phase I/II study of sorefenib and erlotinib for patients with recurrent glioblastoma (GBM) (NABTC 05–02)

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 2005-2005
Author(s):  
M. Prados ◽  
M. Gilbert ◽  
J. Kuhn ◽  
K. Lamborn ◽  
T. Cloughesy ◽  
...  
Keyword(s):  
Phase I ◽  
Phase Ii ◽  
Single Agent ◽  
Outcome Data ◽  
Recurrent Glioblastoma ◽  
Dose Finding ◽  
Pharmacokinetic Studies ◽  
Eligibility Criteria ◽  
Prior Chemotherapy ◽  
Grade 3

2005 Background: Single agent targeted therapy has been disappointing in GBM. Combination therapy simultaneously targeting both EGFR and the MAP kinase pathway may be more effective. Methods: The NABTC conducted a phase I/II study of sorafenib (VEGFR/PDGFR/Raf inhibitor) in combination with erlotinib (EGFR inhibitor) in recurrent GBM. Eligibility criteria included histologically proven GBM, radiologic progression, > 18 yrs old, KPS > 60, adequate bone marrow reserve, and organ function. There was no limit on the number of prior therapies for phase I and no more than two prior relapses for phase II. No enzyme-inducing antiepileptic drugs were allowed. Dose-finding used a standard 3 + 3 design and the MTD was defined as the dose with DLTs in 1/6 or fewer patients. The primary endpoint for the phase II component was PFS6 (p0 = 15%; p1 = 35%). A 2-stage design was used. If > 4 of the initial 19 patients achieved PFS6, an additional 14 patients would be accrued for a total of 33 patients. Results: In phase I, 17 patients were enrolled. Median age 50 years (35–69); median prior chemotherapy 1 (1–3). The initial doses were sorafenib 200 mg bid and erlotinib 100mg qd. MTD was 400 mg bid of sorafenib daily combined with 100 mg of erlotinib daily. At this dose 1/6 evaluable patients had a DLT (grade 4 lipase). Other grade 3 or 4 toxicities included transaminitis, hypertension, hypophosphatemia, and increased lipase. Pharmacokinetic studies showed no alterations in sorafenib PK, but no accumulation of erlotinib, suggesting a drug-drug interaction with sorafenib altering erlotinib metabolism or clearance. In phase II, 19 patients were accrued to stage I. Median age 51 years (30–75); median prior chemotherapy 2 (range 1–3). Phase II toxicity and outcome data are not yet mature but will be available at the time of presentation. Conclusions: This combination was moderately well-tolerated. MTD was below other combination phase I studies. Sorafenib affected the PK of erlotinib preventing drug accumulation. Phase II toxicity and outcome data will be reported. [Table: see text]

Phase I/II study of sorafenib and temsirolimus for patients with recurrent glioblastoma (GBM) (NABTC 05–02)

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 2006-2006 ◽  
Author(s):  
P. Y. Wen ◽  
T. Cloughesy ◽  
J. Kuhn ◽  
K. Lamborn ◽  
L. E. Abrey ◽  
...  
Keyword(s):  
Phase I ◽  
Phase Ii ◽  
Single Agent ◽  
Recurrent Glioblastoma ◽  
Molecular Therapy ◽  
Dose Finding ◽  
Pharmacokinetic Data ◽  
Eligibility Criteria ◽  
Grade 3 ◽  
Recurrent Gbm

2006 Background: The activity of targeted molecular therapy with single agents has been disappointing in GBM. Combination therapy simultaneously targeting both the PI3k/Akt/mTOR and the MAP kinase pathway may be more effective. Methods: The North American Brain Tumor Consortium conducted a phase I/II study of sorafenib (VEGFR/PDGFR/Raf inhibitor) in combination with temsirolimus (mTOR inhibitor) in recurrent GBM. Eligibility criteria included histologically proven GBM, radiologic progression, > 18 years old, KPS > 60, adequate bone marrow reserve, and organ function. There was no limit on the number of prior relapses for phase I and no more than two prior relapses for phase II. No enzyme-inducing antiepileptic drugs were allowed. Dose-finding used a standard 3 + 3 design with the MTD defined as the dose with DLTs in 1/6 or fewer patients. The primary endpoint for the phase II component was PFS6 (p0 = 15%; p1 = 35%). A 2-stage design was used. If > 4 of the initial 19 patients achieved PFS6, an additional 14 patients would be accrued for a total of 33 patients. Results: In phase I, 13 patients were enrolled. Median age was 50 years (32–59); median prior chemotherapy 1 (1–3). The initial doses were sorafenib 200 mg bid and temsirolimus 25 mg intravenously once weekly. The MTD was 400 mg bid of sorafenib daily combined with 25 mg of temsirolimus weekly. At this dose 1/6 patients had a DLT (grade 3 thrombocytopenia). Other grade 3 or 4 toxicities included transaminitis, hypophosphatemia, fatigue, diarrhea, and hyperlipidemia. Pharmacokinetic data were similar to that for single agent sorafenib and temsirolimus suggesting that there were no significant interaction between the two drugs. In phase II, 19 patients were accrued to stage I. Median age 50 years (24–64); median prior relapses 1 (range 1–2). One patient was found not to have GBM on central review. No patient remained progression free at 6 months, although two patients stopped treatment prior to 26 weeks for other than progression (alternative therapy, cerebral ischemia). As result, the study was terminated and did not proceed to the second stage. Conclusions: The combination of sorafenib and temsirolimus was moderately well-tolerated but did not demonstrate sufficient efficacy in recurrent GBM to warrant further investigation. No significant financial relationships to disclose.

Phase II study of cabazitaxel (CAB) plus enzalutamide (ENZ) in metastatic castration-resistant prostate cancer (mCRPC).

2020 ◽  
Vol 38 (6_suppl) ◽  
pp. 86-86
Author(s):  
Julie Nicole Graff ◽  
Heather H. Cheng ◽  
Jacqueline Vuky ◽  
Joshi J. Alumkal ◽  
Dustin Kreitner ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Phase I ◽  
Phase Ii ◽  
Single Agent ◽  
Failure To Thrive ◽  
Castration Resistant Prostate Cancer ◽  
Eligibility Criteria ◽  
Psa Response ◽  
Pre Treatment ◽  
Grade 3

86 Background: There are six agents that improve survival in mCRPC, each administered as a single agent. Combinations of agents with distinct mechanisms of action have the potential to improve outcomes. Methods: We performed a multi-institution phase I/II study to examine safety and efficacy of CAB plus ENZ with mandatory granulocyte-colony stimulating factor support in mCRPC. Results: A sample size of 3 to 12 subjects for the phase I portion and 33 for the phase II portion provided 82% power to detect PSA response rate (decrease ≥90%) of 50% compared to the null hypothesis of 24%. The main eligibility criteria allowed prior abiraterone/prednisone (AAP) and docetaxel (in the metastatic hormone sensitive setting). Baseline characteristics: median age 69 years (47 - 82), median PSA 20.2 ng/dl (0.2 - 966.3); 7 subjects had visceral disease, 10 received prior AAP, and 8 received prior docetaxel. In the phase I portion, there were no dose limiting toxicities using CAB 25 mg/m2 IV Q3wks up to 10 cycles and ENZ 160 mg PO QD, hence this dosing was used for the phase II portion. 33 men with mCRPC were treated with CAB plus ENZ in the phase II arm. PSA response rates are listed in Table. Prior exposure to AAP decreased PSA response, but subjects who had prior AAP also had higher pre-treatment PSA. There were no treatment related deaths. Dose reduction of CAB to 20 mg/m2 was needed in 7 subjects. Over the course of the study, 14 Grade 3 adverse events occurred that were deemed possibly related to treatment: fatigue (n=2, 6%), febrile neutropenia (n=2, 6%), leukopenia (n=2, 6%), thrombocytopenia (n=2, 6%), anemia (n=1, 3%), hypertension (n=1, 3%), leukocytosis (n=2, 6%), fracture (n=1, 3%), failure to thrive (n=1, 3%). Conclusions: CAB plus ENZ was tolerable and associated with promising anti-tumor activity, particularly in abiraterone-naïve subjects. Further evaluation of this regimen is warranted. This project was managed by the Prostate Cancer Clinical Trials Consortium and funded by Astellas Inc. and Sanofi. Clinical trial information: NCT02522715. [Table: see text]

scholarly journals EPCT-19. A PHASE I STUDY OF RIBOCICLIB AND EVEROLIMUS FOLLOWING RADIATION THERAPY IN CHILDREN WITH NEWLY DIAGNOSED NON-BIOPSIED DIFFUSE PONTINE GLIOMAS (DIPG) AND RB+ BIOPSIED DIPG AND HIGH GRADE GLIOMAS (HGG)

2020 ◽  
Vol 22 (Supplement_3) ◽  
pp. iii307-iii307
Author(s):  
Mariko DeWire ◽  
James Leach ◽  
Christine Fuller ◽  
Peter de Blank ◽  
Trent Hummel ◽  
...  
Keyword(s):  
Phase I ◽  
Phase I Study ◽  
Single Agent ◽  
Maximum Tolerated Dose ◽  
Pharmacokinetic Studies ◽  
High Grade ◽  
Newly Diagnosed ◽  
High Grade Gliomas ◽  
Grade 3 ◽  
Expansion Cohort

Abstract Genomic aberrations in the cell cycle and mTOR pathways have been reported in diffuse pontine gliomas (DIPG) and high-grade gliomas (HGG). Dual inhibition of CDK4/6 (ribociclib) and mTOR (everolimus) has strong biologic rationale, non-overlapping single-agent toxicities, and adult clinical experience. The maximum tolerated dose (MTD) and/or recommended phase two dose (RP2D) of ribociclib and everolimus administered during maintenance therapy following radiotherapy was determined in the phase I study as a rolling 6 design. Ribociclib and everolimus were administered once daily for 21 days and 28 days, respectively starting two-four weeks post completion of radiotherapy. All HGG patients and any DIPG patient who had undergone biopsy were screened for RB protein by immunohistochemistry. Eighteen eligible patients enrolled (median age 8 years; range: 2–18). Six patients enrolled at dose levels 1,2, and 3 without dose limiting toxicities (DLT). Currently, five patients are enrolled at dose level 3 expansion cohort. The median number of cycles are 4.5 (range: 1–20+). Among the expansion cohort, one dose limiting toxicity included a grade 3 infection and one patient required a dose reduction in course 3 due to grade 3 ALT and grade 4 hypokalemia. The most common grade 3/4 adverse events included neutropenia. Preliminary pharmacokinetic studies on 12 patients suggest an impact of ribociclib on everolimus pharmacokinetics. The MTD/RP2D of ribociclib and everolimus following radiotherapy in newly diagnosed DIPG and HGG is anticipated to be 170 mg/m2/day x 21 days and 1.5 mg/ m2/day every 28 days which is equivalent to the adult RP2D.

A Phase II Multicenter Study of the Histone Deacetylase Inhibitor (HDACi) Abexinostat (PCI-24781) in Relapsed/Refractory Follicular Lymphoma (FL) and Mantle Cell Lymphoma (MCL)

Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 55-55 ◽  
Author(s):  
Andrew M. Evens ◽  
Julie M Vose ◽  
Wael Harb ◽  
Leo I. Gordon ◽  
Robert Langdon ◽  
...  
Keyword(s):  
Phase I ◽  
Phase Ii ◽  
Safety Profile ◽  
Tumor Size ◽  
Phase Ii Study ◽  
Cell Lymphoma ◽  
Single Agent ◽  
Employment Equity ◽  
Equity Ownership ◽  
Grade 3

Abstract Abstract 55 Background: Abexinostat (PCI-24781) is a novel oral pan-HDACi that has previously demonstrated potent preclinical activity in lymphoma cell lines and animal models (Evens et al, Clin Ca Res 2009) as well as a tolerable safety profile in phase I solid tumor clinical studies (Undevia et al, ASCO 2008). In a phase I single-agent clinical trial in patients (pts) with multiply relapsed/refractory lymphoma and leukemia, anti-tumor activity was noted in FL and MCL; 4/4 FL pts showed durable clinical benefit with median time on treatment of >8 months; 1 of 2 MCL pts had a complete remission (CR) and remains on treatment for >3 years. Based on these encouraging single-agent abexinostat data, a phase II extension study was completed in relapsed/refractory FL and MCL. Methods: The primary objective of this phase II study was objective response rate (ORR, complete [CR] and partial remission [PR]), while reduction in tumor size (CR + PR + stable disease) and safety were also examined. Abexinostat was given orally twice daily at 45mg/m2 on a 4-week cycle for 7 days/week every other week, which is the previously established dose and schedule identified in the phase I study. For pharmacodynamic correlative analyses, tubulin and histone acetylation were measured in peripheral blood mononuclear cells (PBMCs) at pre-dose and 4 hours after the first dose of abexinostat. Results: A total of 30 pts were enrolled (n=16 FL and n=14 MCL pts) of which 25 were response-evaluable. The median age was 67 years (36–81) and the median prior therapies were 3 (1–5), 77% of which were rituximab-containing and one-third (33%) had undergone prior autologous stem cell transplant (31% FL, 36% MCL). The ORR in all pts was 48% (12/25). A reduction in tumor size was observed in 86% (12/14) of FL pts, while the ORR in FL was 64% (9/14); the FL intent-to-treat ORR was 56%. With a median follow-up of 10.3 months (1.2–20.9), the progression-free probability was 86% in FL pts. Furthermore, the median duration of response (DOR) in FL pts has not been reached, as 5 responders remain on study. Notably, 4 FL pts were on treatment for over 16 months. Among MCL pts, reduction in tumor size was noted in 27% (3/11), while the ORR was similar at 27% (3/11). The median progression-free survival (PFS) in MCL pts was 4 months (1–12), while the DOR in the 3 responding patients were 2+, 3, and 6+ months. Therapy was overall well tolerated. The most common treatment-related adverse events (AEs) of any grade (> 20% incidence) include: nausea (60%), fatigue (57%), diarrhea (50%), thrombocytopenia (37%), vomiting (30%), anemia (27%), decreased appetite (23%), dysgeusia (20%) and neutropenia (20%). The most common grade 3/4 related AEs (> 5% incidence) were thrombocytopenia (17%), neutropenia (13%), fatigue (13%), and anemia (7%). There were no deaths reported on the study. Pharmacodynamic analyses revealed that a majority of pts had increased tubulin acetylation in PBMCs, however this finding did not correlate with response or toxicity. Conclusion: In this phase II study, the novel pan-HDACi, abexinostat, was clinically active and overall well tolerated in relapsed/refractory B-cell lymphoma. The safety profile was consistent with this class of agents with <20% of subjects experiencing grade 3/4 cytopenias (during the course of prolonged treatments). Moreover, there was significant clinical activity noted in FL with an ORR of 64%, which included several durable responses in this multiply-relapsed pt population. Further examination of single-agent abexinostat in FL is warranted. Disclosures: Off Label Use: PCI24781 is not FDA approved; it is an investigational agent. Plasencia:Pharmacyclics: Employment, Equity Ownership. Sirisawad:Pharmacyclics: Employment, Equity Ownership. Yue:Pharmacyclics: Employment, Equity Ownership. Luan:Pharmacyclics: Employment, Equity Ownership. Siek:Pharmacyclics: Employment, Equity Ownership. Zhou:Pharmacyclics: Consultancy. Balasubramanian:Pharmacyclics: Employment, Equity Ownership.

Final Results of ECOG1100: A phase I/II study of combined blockade of the ErbB receptor network in patients with HER2- overexpressing metastatic breast cancer (MBC)

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 1033-1033 ◽  
Author(s):  
S. L. Moulder ◽  
A. O’Neill ◽  
C. Arteaga ◽  
M. Pins ◽  
J. Sparano ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Phase I ◽  
Cell Lines ◽  
Dose Level ◽  
Phase Ii ◽  
Prior Exposure ◽  
Prior Chemotherapy ◽  
Group 2 ◽  
Grade 3 ◽  
Group 1

1033 Background: Activation of EGF receptor has been associated with resistance to trastuzumab in breast cancer cell lines. EGFR tyrosine kinase inhibitors inhibit HER2 phosphorylation and synergize with trastuzumab in HER2+ cell lines that co-express EGFR. Methods: Pts with MBC and HER2 overexpression by immunohistochemistry (3+) and/or HER2 gene-amplification by FISH, 0–2 prior chemotherapy regimens for met disease, LVEF 50%, and no prior trastuzumab were treated with trastuzumab 2 mg/kg/wk and gefitinib 250- 500 mg/day until disease progression, unacceptable toxicity or withdrawal of consent. The phase I portion of the trial used a 3+3 design to determine MTD. In the phase II portion of the trial, patients were stratified based upon prior chemotherapy exposure (Group 1= no prior exposure to chemotherapy, Group 2= prior exposure to 1–2 chemotherapy regimens). Response measured using RECIST criteria. The primary endpoint was to increase proportion progression free from 50 to 65% at 6 months in Group 1 and from 50 to 70% at 3 months in Group 2. Results: Phase I: DLT (Grade 3 diarrhea) occurred in 2/3 patients treated at the 500 mg/day dose level of gefitinib in combination with weekly trastuzumab. 0/3 patients treated at the 250 mg/day dose level experienced DLT. This was considered MTD and was the dose selected for the Phase II portion of the trial. Phase II: 36 eligible pts were enrolled. Most patients were ECOG PS of 0 and had visceral organ involvement. Of the patients enrolled in Group 1, one pt achieved a CR, one PR and 7 had SD (≥ 24 weeks). Median time to progression (TTP) was 2.9 months (95% CI, 2.5–4). In Group 2 no responses were observed with a median TTP of 2.5 months (95% CI, 1.5- 2.7). Most common severe toxicities were rash (grade 3, 14%) and diarrhea (grade 3, 30%). No grade 3 cardiac toxicity was encountered. Conclusions: Trastuzumab in combination with gefitinib at doses of 250 mg/day demonstrated an acceptable toxicity profile; however, during planned interim analysis, the TTP did not meet predetermined statistical endpoints required for study continuation. These results do not support the further use of this combination and have implications for other trials using trastuzumab and EGFR TK inhibitors simultaneously. [Table: see text]

Phase II trial of oral gimatecan in adults with recurrent glioblastoma

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 2009-2009
Author(s):  
J. Hu ◽  
P. Y. Wen ◽  
L. E. Abrey ◽  
C. Fadul ◽  
J. Drappatz ◽  
...  
Keyword(s):  
Phase Ii ◽  
Phase Ii Trial ◽  
Performance Status ◽  
Single Agent ◽  
Recurrent Glioblastoma ◽  
Hematologic Toxicity ◽  
Radiographic Response ◽  
Daily Dose ◽  
Grade 3 ◽  
Experienced Grade

2009 Background: Gimatecan is a highly lipophilic oral camptothecin analogue with impressive preclinical activity in glioma models. Methods: We conducted a multicenter two-stage phase II trial to evaluate the efficacy of gimatecan in adults with recurrent glioblastoma. Eligibility criteria included ≤1 prior treatment for recurrent disease, age ≥18, ECOG performance status 0 or 1, and normal organ function. Patients taking enzyme-inducing anti-seizure medications were excluded. Gimatecan 1.22 mg/m2 was given orally once daily for 5 consecutive days during each 28-day cycle. Radiographic response was evaluated by MRI after every second cycle. The primary endpoint of the study was 6 months PFS. A Simon's 2-stage design was used in which 19 patients were evaluated in the first stage, with an additional 36 patients accrued if > 4 patients in stage 1 achieved 6 month PFS. Results: A total of 29 patients were enrolled in the study, with median age of 58 years (range, 25–77 years); 58.6% female; all of whom had received prior surgery, radiation therapy, and at least one regimen of chemotherapy. The daily dose was reduced to 1.0 mg/m2 after four of the first 10 patients experienced grade 4 hematologic toxicity. One patient was removed from trial due to toxicity (grade 3 leukopenia and thrombocytopenia). Treatment delay occurred in 11 patients (38%) and dose reduction was necessary in eight patients (28%). Treatment-related grade 3/4 toxicities included thrombocytopenia (17.2%), leukopenia (17.2%), and neutropenia (10.3%). Only 1/19 patients treated with 1.0 mg/m2/day experienced grade 3/4 hematologic toxicity. The 18% reduction in the daily dose resulted in a 19% decrease in the concentration of total gimatecan in plasma prior to administration of the fifth daily dose (56 ± 23 vs. 45 ± 20 ng/mL) and a 33% decrease in the AUC for dose 5 (8.0±4.8 vs. 5.3±4.2 ng*h/mL). Only one patient had a partial radiographic response by the modified Macdonald criteria and stable disease was the best response in 13 patients. All other patients had progressive disease after two cycles of therapy. Only three patients (12%) were progression-free at 6 months. Median time to progression was 12.0 weeks (95% CI: 7.0, 17.0). Conclusions: Treatment with single-agent gimatecan 1.0 mg/m2/day for 5 days, repeated every 28-days showed minimal efficacy. [Table: see text]

Phase I/II study of erlotinib and temsirolimus for patients with recurrent malignant gliomas (MG) (NABTC 04–02)

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 2004-2004
Author(s):  
S. M. Chang ◽  
J. Kuhn ◽  
K. Lamborn ◽  
T. Cloughesy ◽  
I. Robins ◽  
...  
Keyword(s):  
Phase I ◽  
Phase Ii ◽  
Single Agent ◽  
Malignant Gliomas ◽  
Mtor Inhibitors ◽  
Pharmacokinetic Data ◽  
Eligibility Criteria ◽  
Egfr Amplification ◽  
The North ◽  
Anaplastic Gliomas

2004 Background: Glioblastomas (GBM) frequently have EGFR amplification/mutations and inactivation of PTEN. Although single agent EGFR and mTOR inhibitors have limited activity, combinations of these agents may be more effective. Methods: The North American Brain Tumor Consortium conducted a phase I/II study of the EGFR inhibitor erlotinib in combination with the mTOR inhibitor temsirolimus in recurrent MG. Eligibility criteria were histologically proven GBM and anaplastic gliomas (AG), radiologic progression, >18 years old, KPS >60, adequate bone marrow and organ function. There was no limit on the number of prior relapses for phase I and no more than two prior relapses for phase II. Patients must not be receiving enzyme-inducing antiepileptic drugs. The dose of erlotinib was 150 mg/d in phase I and titrated up to maximum of 200mg/d in phase II depending on tolerability. Patients initially received temsirolimus 50 mg i.v. once weekly and the dose adjusted based on toxicities. Escalation was performed in groups of three. MTD was defined as the dose with 1/6 or fewer patients with dose-limiting toxicities (DLTs). Primary endpoint for the phase II component was PFS6. Results: In phase I, 22 patients were enrolled (15 GBM; 7 AG). Median age was 54 years (26–74); median KPS 90 (70–100); median prior relapses 1 (0–3). The MTD was determined to be 150 mg of erlotinib daily combined with 15 mg of temsirolimus weekly. DLTs were rash, mucositis, and liver function abnormalities. Pharmacokinetic data were similar to that for single agent erlotinib and temsirolimus; there was no interaction between the two drugs. AUC accumulation ratios between cycle 1 and 2 for erlotinib and OSI-420 were 3.6 and 4.6, respectively. In phase II, there were 56 patients (including 12 phase I patients treated at the MTD): 40 GBM; 16 AG, median age 47 years (20–72); median KPS 90 (range 60–100), median prior relapses 1 (range 1–3). Six patients discontinued therapy as a result of toxicities. For GBM patients, there was no PR, 30% SD, and PFS6 was 12.5%. For AG patients there was 12.5% PR, 12.5% SD, and PFS6 was 6.25%. Conclusions: The combination of erlotinib and temsirolimus was associated with a higher than expected incidence of toxicities and had minimal activity in recurrent MG. [Table: see text]

Updated phase I results of a phase I/II trial of BNC105P with everolimus in patients with metastatic renal cell carcinoma (mRCC).

2013 ◽  
Vol 31 (6_suppl) ◽  
pp. 397-397
Author(s):  
Thomas E. Hutson ◽  
Long H. Dang ◽  
Richard C. Lauer ◽  
Alexander Starodub ◽  
Ralph J. Hauke ◽  
...  
Keyword(s):  
Phase I ◽  
Phase Ii ◽  
Cellular Response ◽  
Kinase Inhibitors ◽  
Single Agent ◽  
Sequential Approach ◽  
Randomized Phase Ii ◽  
Disease Stabilization ◽  
Grade 3

397 Background: BNC105P is an inhibitor of tubulin polymerization. In vivo exposure to BNC105P leads to selective damage of tumor vasculature in both primary and metastatic lesions, causing disruption of blood flow to tumors, hypoxia and associated tumor necrosis. BNC105P also has a direct anti-proliferative action on cancer cells. Up regulation of the mTOR pathway has been identified as a cellular response to hypoxic stress. The combined use of BNC105P with an agent active against mTOR may improve clinical outcome in patients with progressive mRCC who are refractory to VEGFR-directed tyrosine kinase inhibitors (TKI). Methods: A phase I/II study in mRCC patients who have received 1-2 prior TKIs was undertaken. The phase I component enrolled 12 subjects at 4 dose levels of BNC105P (4.2, 8.4, 12.6, 16 mg/m2; IV infusion Days 1 and 8, 21-day repeating cycle). Everolimus was administered concurrently (10 mg p.o.). PK analysis was performed during cycle 1. Results: Updated results from the completed phase I component confirm the BNC105P/everolimus combination was well tolerated. No DLTs (drug-related, during cycle 1) were observed in any of the phase I subjects. Toxicities on study deemed to be drug-related (either single agent or combination) included single grade 3 events of anemia and pericardial effusion. Grade 2 events (more than 1 occurrence) of fatigue, anemia, and oral mucositis were also observed. 8 of the 12 phase I subjects achieved disease stabilization (7 of these subjects had a minimum time on therapy of 18 weeks, 6 cycles). Across all subjects a median of 6 cycles (range: 1-21) was administered, with removal from study predominantly due to disease progression. PK analysis confirmed no drug-drug interaction. The randomized phase II component of the study continues and will compare everolimus given concomitantly with BNC105P to a sequential approach (everolimus followed by BNC105P). Conclusions: BNC105P (16 mg/m2) can be combined with full dose everolimus and is being evaluated in a randomized phase II study. Clinical trial information: NCT01034631.

scholarly journals Temsirolimus in Combination with Bendamustine and Rituximab for the Treatment of Relapsed Mantle Cell and Follicular Lymphoma: Report on an Ongoing Phase I/II Trial

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 3930-3930
Author(s):  
Georg Hess ◽  
Ulrich Keller ◽  
Johannes Atta ◽  
Ulrich Bitz ◽  
Christian Lerchenmueller ◽  
...  
Keyword(s):  
Phase I ◽  
Phase Ii ◽  
Research Funding ◽  
Single Agent ◽  
B Cell Lymphoma ◽  
Response Rates ◽  
Phase Iii ◽  
Mtor Inhibition ◽  
Grade 3 ◽  
Ongoing Phase

Abstract Background: mTOR inhibition has been shown to be effective in various subtypes of malignant lymphomas. In relapsed MCL a phase III trial could prove superiority of Temsirolimus to standard options. Furthermore, in patients with follicular and diffuse large B-cell lymphoma, promising response rates could be observed (Smith et al, JCO 2010). Whereas combination to single agent Rituximab (R) improved efficacy (Ansell et al, Lancet Oncology 2011), there is limited information of the feasibility and efficacy in combination with chemotherapy. Bendamustine (B) has been shown to be effective in various lymphoma entities and has a beneficial side effect profile (Rummel et al, JCO, 2005). In the phase I of this trial, we have established that 50mg of Temsirolimus given 3 times weekly in a four week cycle could be safely added to BR (Hess, Leukemia, 2015). Here we report for the first time combined results of phase I and II of this trial. Methods: this is a multicenter, national, prospective trial. Inclusion criteria: patients were eligible if they had histologically proven FL or MCL, 1-3 prior treatment lines, no curative option available, no refractoriness to Bendamustine, measurable disease, ECOG < 3, sufficient bone marrow reserve, no severe concomitant diseases and given informed consent. Treatment consisted of Bendamustine 90mg/m² day 1-2, Rituximab 375mg/m² day 1 and Temsirolimus 50 mg day 2, 8, 15 of a 28d cycle. A total of 4 cycles was planned with interim staging after 2 cycles. Results: Overall 34 patients (pts) have been included until now (15 pts phase I, 19 pts phase II). Concerning clinical characteristics, median age was 71 years, with 25 MCL and 9FL, and a median number of 2 pretreatments (1-3). Overall the treatment was well tolerated, and toxicity was predominantly hematologic. In 118 evaluable cycles of chemotherapy the following hematologic grade 3 / 4 toxicities were noted: leukopenia (11 pts, 32%), neutropenia (8 pts, 24%), and thrombocytopenia (7 pts, 21%). Non-hematologic grade 3 / 4 observed in at least two patients were angioedema and decrease in blood potassium, infection, metabolic (4 events). AE's of special interest: pulmonary: rate of cough (4; 12%) and pneumonitis (1; 3%); gastrointestinal: diarrhea (6; 18%), nausea (13, 38%); general: fatigue (16; 47%), mucositis (13, 38%); bleeding: epistaxis (4; 12%), which all were predominantly grade 1 or 2. Response: currently, best responses were 8 CR (31%), 16 PR (62%) and 2 SD (8%) in 26 patients evaluable so far. Updated results will be presented at the meeting. Overall responses were 94% in MCL (7 CR, 10 PR, 1 SD) and 88% in FL (1 CR, 6 PR, 1 SD). After a median follow up of 13 months (mean: 21 months) median PFS is 18.6 months for the entire cohort, with 22 months for MCL and not reached in FL. Summary: In this ongoing phase II trial 50mg Temsirolimus (day 1,8,15) in combination with Bendamustine and Rituximab was well tolerated and feasible. A moderate dose of Temsirolimus to standard chemotherapy might be the optimal way to achieve the maximum efficacy with mTOR inhibitors; in fact excellent response rates suggest an additive effect of mTOR inhibition to BR. Even after the BTK inhibitor Ibrutinib has entered the clinical arena of MCL, this combined treatment represents a valuable additional option especially for patients with relapsed MCL Disclosures Hess: Pfizer, Janssen, Roche, Mundipharma: Honoraria, Research Funding; Janssen, Roche, , Celgene, Novartis: Consultancy. Keller:Roche: Consultancy, Honoraria; Pfizer: Consultancy. Witzens-Harig:Roche: Honoraria; Pfizer: Honoraria, Research Funding.

A phase I/II trial of RAD 001 with gefitinib in patients with castrate metastatic prostate cancer and glioblastoma multiforme

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 14520-14520 ◽  
Author(s):  
D. R. Shaffer ◽  
L. E. Abrey ◽  
K. Beekman ◽  
C. Eicher ◽  
M. Morris ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Phase I ◽  
Phase Ii ◽  
Fdg Pet ◽  
Metastatic Prostate Cancer ◽  
Single Agent ◽  
Fixed Dose ◽  
Prior Chemotherapy ◽  
Egfr Inhibition ◽  
Cancer Support

14520 Background: Inactivation of the Pten tumor suppressor gene, leading to constitutive activation of the PI3K/AKT/mTOR pathway, is correlated with resistance to EGFR-targeted therapies. This trial tested the concept that inhibition of mTOR by RAD 001 (NOVARTIS) will restore sensitivity to EGFR inhibition by gefitinib (ASTRA ZENECA), in patients with progressive PC and GBM. Methods: Phase I was designed to determine a safe and tolerable dose and the pharmacokinetics (PK) of RAD (30/ 50/ 70 mg po weekly) with a fixed dose of gefitinib (250 mg po qd) in patients with PC and GBM. Phase II evaluated the proportion of PC patients with no change or a decline in PSA at 12 weeks, without clinical or radiographic progression. FDG PET imaging and immunohistochemistry were included as correlative studies. Results: 12 patients (2 GBM, 10 PC) were treated in Phase I, and 22 of 27 PC patients have been treated in Phase II. (The GBM Phase II results are reported separately). 20/32 (63%) of PC patients had received prior chemotherapy. No dose limiting toxicities were observed in Phase I, and 70 mg of RAD 001 weekly with gefitinib 250 mg qd was studied as the Phase II dose. PK parameters estimated during a 3 week single agent lead-in phase and during subsequent combined therapy suggested no clinically relevant PK interactions between RAD and gefitinib. The most common drug-related grade 3/4 toxicities were lymphopenia (28%) and elevated ALT (7%). Serial FDG PET scans showed > 25% decline in SUV uptake in 9/23 evaluable patients during the first week of treatment; of these, 3 patients showed no progression at 12 weeks. Overall, 5/29 PC patients showed no progression at 12 weeks, 3 (60%) of whom had received prior chemotherapy. Conclusions: Combination therapy with RAD 70 mg weekly and gefitinib 250 mg daily appears to be safe and is associated with modest activity in metastatic prostate cancer. Support: Novartis Pharmaceuticals, Astra Zeneca Pharmaceuticals. [Table: see text]

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