Abstract B118: A phase 1, open-label multiple dose escalation trial to determine safety and tolerability of once daily OPB-111077 in subjects with advanced cancer

Author(s):  
Gregory Cote ◽  
Kyriakos Papadopoulos ◽  
Amita Patnaik ◽  
Drew Rascoe ◽  
Lon Smith ◽  
...  
2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 3520-3520 ◽  
Author(s):  
B. R. Bastos ◽  
J. Diamond ◽  
R. Hansen ◽  
D. Gustafson ◽  
J. Arnott ◽  
...  

3520 Background: ENMD-2076, a novel, orally-active antimitotic and antiangiogenic molecule inhibits Aurora A as well as tyrosine kinases that drive tumor vascularization, including VEGFR2 (KDR), PDGFR and the FGF receptors. This Phase 1 study was designed to evaluate the safety, pharmacokinetics (PK) and preliminary efficacy of ENMD-2076 administered once daily to patients (pts) with advanced cancer. Methods: The dose escalation scheme utilizes 3 (or 4) + 3 (or 2) design. Pts receive ENMD-2076 once daily in 28-day cycles (followed by 7–14 days of rest between cycles 1 and cycle 2 only). Results: 14 pts have been enrolled in 3 dose cohorts (range 60 to 120 mg/m2/d). Median age/performance status is 62/1. The total number of treatment cycles to date is 45, with a median of 3 cycles (range <1 to 9 cycles). Most frequent, related toxicities (all grades, n=14) were hypertension (29%), fatigue (21%), proteinuria and diarrhea (both 14%). One pt experienced dose limiting toxicity of Grade 4 hypertension and Grade 3 cholecystitis in the first dose cohort of 60 mg/m2/d. Following drug interruption, the pt restarted at 30 mg/m2/d and continued for 4 additional cycles before being removed for progressive disease. Noncompartmental PK analysis of the first two dose levels shows that the plasma concentration of ENMD-981693 (the active free base of ENMD-2076) is dose- linear, as reflected in AUC and Cmax. The estimated terminal half-life (t1/2) is unaltered regardless of dose; however, t1/2 is approximately 50% greater at steady state than following single dose administration. Four ovarian cancer and 2 colon cancer pts have achieved decreases ranging from 11–61% in either CA125 or CEA, respectively (4 are associated with stable disease at Cycle 2 by modified RECIST criteria). Serum KDR concentrations assayed by ELISA decreased from baseline in all patients on treatment from a mean of 9153 pg/mL (SEM 464.2) at D1 to 6987 pg/mL (SEM 460.0) at D28 (p <0.05). Conclusions: ENMD-2076 is a small molecule kinase inhibitor with acceptable toxicity and preliminary evidence of antitumor activity in pts with ovarian and colorectal cancers. [Table: see text]


Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 3425-3425 ◽  
Author(s):  
Luis H Camacho ◽  
Robin Joyce ◽  
Jennifer R Brown ◽  
Asher Chanan-Khan ◽  
Philip C. Amrein ◽  
...  

Abstract Abstract 3425 Poster Board III-313 MDX-1342 is a fully human monoclonal antibody (HuMAb) with enhanced antibody-dependent cellular cytotoxicity (ADCC) effector function, targeting CD19-membrane receptor which is highly expressed on malignant chronic lymphocytic leukemia (CLL) cells. An open-label, multi-center, multiple-dose, dose-escalating Phase 1 study is being conducted to determine the safety and tolerability profile of MDX-1342 in subjects with CD19-positive relapsed or refractory CLL. To date, MDX-1342 has been administered intravenously (iv) weekly for 4 weeks to 12 subjects (8 Male, 4 Female) - in cohorts of 3 subjects each - at doses of 0.7, 7, 40, and 200 mg/dose. Overall, MDX-1342 has been well tolerated. No drug-related serious adverse events have been reported among the 12 subjects treated. Grade 1 and 2 infusion reactions (including rigors, chills, and wheezing) have been observed in 9 subjects. This has been adequately managed with the use of antihistamines and corticosteroids. Dose escalation continues and a maximum tolerated dose has not yet been identified. Of the 9 currently evaluable subjects, 1 has experienced a partial response (40 mg/dose cohort), 6 have stable disease and 2 have discontinued due to progressive disease. Preliminary results indicate antileukemic signals with dose-correlative reductions in both white blood counts (WBC) and circulating CD20+ cells after one 4-week cycle of weekly i.v. infusions of MDX-1342. In the 40 mg/dose cohort, the median reduction in WBC was 62% and the median reduction in circulating CD20+ cells was 74%. Additional subjects are being accrued to higher dose cohorts to more accurately characterize the safety and clinical activity of MDX-1342 and to determine if there is a consistent cumulative drop in WBC and circulating CD20+ cells as the dose increases. Disclosures Assad: Medarex, Inc.: Employment. Carrigan:Medarex, Inc: Employment.


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 3562-3562
Author(s):  
S. Nallapareddy ◽  
D. Gustafson ◽  
S. Leong ◽  
W. Messersmith ◽  
J. Arnott ◽  
...  

3562 Background: ENMD-1198 (2-methoxyestra-1, 3, 5, (10) 16-tetraene-3-carboxamide), an analog of 2-methoxyestradiol (2ME2), has both antiangiogenic and antiproliferative effects in various tumor types. ENMD-1198 inhibits MT polymerization by binding to β-tubulin at the colchicine-binding site and inhibits HIF-1alpha. This Phase 1 study is evaluating the safety of ENMD-1198 to determine the maximum tolerated dose. Methods: Eligible pts had advanced cancer for which no effective therapy exists that is either evaluable by RECIST criteria or tumor markers that could be monitored for clinical benefit. Phase 1 dose escalation in 3+3 design for first 5 cohorts; modified to 1 pt cohorts for subsequent cohorts until Grade 2 treatment related toxicity, and then standard 3+3 design. All pts treated with once daily oral ENMD-1198 in 28-day cycles (with post-treatment drug-free observation period of 7–14 days in Cycle 1 only). Pts are treated until the appearance of significant treatment-emergent toxicities or disease progression (PD) occurs. Results: To date, 27 pts have been enrolled in 12 dose cohorts (range 5 to 550 mg/m2/d). Median age/performance status is 61/1. Total # of treatment cycles to date is 68, with a median of 2 cycles (range <1 to 15 cycles). Most frequent toxicities (all grades, n=22) were pain (77%), fatigue (55%), constipation (36%), neuropathy and nausea (both 32%), and anemia (27%). 4 pts have experienced stable disease (SD) for more than 2 cycles. There have been no objective responses to date. 2 pts experienced dose limiting toxicity with Grade 4 neutropenia in the 550 mg/m2/d cohort. Following drug holiday, pts restarted at 425 mg/m2/d and continued for at least 1–2 more cycles before being removed from study for PD. One pt (neuroendocrine ca pancreas) is experiencing prolonged SD at 60 mg/m2/d >14 cycles and a 2nd pt (prostate ca) experienced SD at 30mg/m2/d for 10 cycles. ENMD-1198 was absorbed rapidly after oral administration. There was a linear relationship between dose and drug exposure as measured by AUC across all doses (5 - 550 mg/m2). The elimination half-life of ENMD- 1198 averaged more than 12 hours after a single dose. Conclusions: DLT was identified at 550 mg/m2/d. Cohort expansion at 425mg/m2/d is ongoing. [Table: see text]


2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 2550-2550
Author(s):  
Patrick Y. Wen ◽  
John Frederick De Groot ◽  
James D. Battiste ◽  
Samuel Aaron Goldlust ◽  
James Stuart Garner ◽  
...  

2550 Background: Paxalisib (previously GDC-0084) is a potent, oral, selective, brain-penetrant, small molecule inhibitor of class I phosphoinositide 3-kinase and mammalian target of rapamycin. The PI3K pathway is upregulated in ~85% of GBM cases and paxalisib has shown efficacy in preclinical models. A phase I study (NCT01547546) investigated paxalisib dosed once daily in 47 patients with recurrent high-grade gliomas and established a maximum tolerated dose (MTD) of 45mg once daily. The current phase Il study aims to explore the safety, tolerability, and clinical activity of paxalisib in newly diagnosed GBM and an unmethylated MGMT promotor following surgery and temozolomide chemoradiation per Stupp regimen. Methods: Part 1 of this study is an open-label, dose-escalation phase to assess the safety, tolerability and MTD. Dose-escalation started at 60mg and progressed in 15mg increments using a 3+3 design. Part 2 is an expansion cohort recruiting 20 patients randomized to administration in fed or fasted states at the MTD. Results: Part 1 is complete and reported here. Nine patients were recruited and an MTD of 60mg was determined. DLTs were hyperglycemia and oral mucositis. AEs were generally reversible and consistent with the PI3K inhibitor class with the most common events were rash, oral mucositis, and fatigue. PK at the MTD was broadly consistent with the data published for the phase 1 study. For eight response-evaluable patients in Part I the median progression-free survival (PFS) was 8.4 months, and 25% of patients remained progression free after 15 months of follow-up. Part 2 is ongoing. Conclusions: A higher MTD of 60mg was identified in newly diagnosed GBM with unmethylated MGMT promotor status than the 45mg MTD previously identified in recurrent high-grade glioma. An encouraging PFS signal is described in this poor-prognosis, unmethylated MGMT patient population. Clinical trial information: NCT03522298 .


2019 ◽  
Vol 21 (Supplement_6) ◽  
pp. vi28-vi28
Author(s):  
Patrick Wen ◽  
John DeGroot ◽  
James Battiste ◽  
Samuel Goldlust ◽  
James Garner ◽  
...  

Abstract BACKGROUND GDC-0084 is a potent, oral, selective small molecule inhibitor of class I phosphoinositide 3-kinase and mammalian target of rapamycin (PI3K/mTOR). GDC-0084 crosses the blood-brain barrier and achieves a brain / plasma ratio of approximately 1.0. GDC-0084 was given as once daily dosing in a phase 1 study (Wen et al, J Clin Oncol 34, 2016(15) suppl.2012) in 47 patients with recurrent high-grade gliomas. The adverse events were generally consistent with the established PI3K/mTOR inhibitor class-effects. The MTD identified was 45mg once daily. METHODS The current study is conducted in the newly diagnosed GBM patient with unmethylated MGMT promotor status upon completion of standard adjuvant XRT/TMZ. It has a 2-part design: an open-label, dose-escalation phase to assess the safety, tolerability, MTD (Part 1, followed by an expansion cohort (Part 2) commencing once MTD is established. Dose-escalation started at 60mg, and progressed in 15mg increments, per standard 3 + 3 rules. Part 2 recruits 20 patients, who are randomized to take GDC-0084 at the identified MTD, in fed and fasted states. RESULTS Part 1 of the study is complete. There were no DLTs among 3 pts treated at the 60mg. Among 6 pts treated at 75mg, DLTs were identified as hyperglycaemia (symptomatic) and oral mucositis. Adverse effects seen were generally modest, manageable and consistent with the PI3K-class. PK parameters are in line with phase 1 data. Part 2 recruitment is ongoing. CONCLUSION GDC-0084 displays a safety profile consistent with previous data in recurrent high-grade glioma but appears better tolerated in the newly diagnosed GBM setting. An MTD of 60mg is identified.


2015 ◽  
Vol 16 (9) ◽  
pp. 1133-1142 ◽  
Author(s):  
Tony Reid ◽  
Bryan Oronsky ◽  
Jan Scicinski ◽  
Curt L Scribner ◽  
Susan J Knox ◽  
...  

Author(s):  
Noboru Yamamoto ◽  
Toshio Shimizu ◽  
Kan Yonemori ◽  
Shigehisa Kitano ◽  
Shunsuke Kondo ◽  
...  

SummaryBackground This open-label, phase 1 study investigated TAS4464, a potent NEDD8-activating enzyme inhibitor, in patients with advanced/metastatic solid tumors (JapicCTI-173,488; registered 13/01/2017). The primary objective was dose-limiting toxicities (DLTs). Maximum-tolerated dose (MTD) was investigated using an accelerated titration design. Methods The starting 10-mg/m2 dose was followed by an initial accelerated stage (weekly dosing; n = 11). Based on liver function test (LFT) results, a 14-day, 20-mg/m2 dose lead-in period was implemented (weekly dosing with lead-in; n = 6). Results Abnormal LFT changes and gastrointestinal effects were the most common treatment-related adverse events (AEs). DLTs with 56-mg/m2 weekly dosing occurred in 1/5 patients; five patients had grade ≥ 2 abnormal LFT changes at 40- and 56-mg/m2 weekly doses. Further dose escalation ceased because of the possibility of severe abnormal LFT changes occurring. DLTs with weekly dosing with lead-in occurred in 1/5 patients at a 56-mg/m2 dose; MTD could not be determined because discontinuation criteria for additional enrollment at that particular dose level were met. As no further enrollment at lower doses occurred, dose escalation assessment was discontinued. Serious treatment-related AEs, AEs leading to treatment discontinuation, and DLTs were all related to abnormal LFT changes, suggesting that TAS4464 administration could affect liver function. This effect was dose-dependent but considered reversible. Complete or partial responses to TAS4464 were not observed; one patient achieved prolonged stable disease. Conclusions MTD could not be determined due to TAS4464 effects on liver function. Further evaluation of the mechanism of NEDD8-activating enzyme inhibitor-induced abnormal liver function is required. Trial registration number JapicCTI-173,488 (registered with Japan Pharmaceutical Information Center). Registration date 13 January 2017


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