Daily administration of MGCD265 to patients with solid tumors in a dose-escalation phase I study (study 265-101).

2010 ◽  
Vol 28 (15_suppl) ◽  
pp. 3106-3106
Author(s):  
M. A. Drouin ◽  
C. K. Kollmannsberger ◽  
H. E. Uronis ◽  
R. E. Martell ◽  
J. Wang ◽  
...  
2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e14525-e14525 ◽  
Author(s):  
C. K. Kollmannsberger ◽  
H. Hurwitz ◽  
G. Vlahovic ◽  
C. Maroun ◽  
J. Dumouchel ◽  
...  

e14525 Background: MGCD265 is a novel multitargeted receptor tyrosine kinase (RTK) inhibitor that targets the mesenchymal epithelial transition (c-Met) and the vascular endothelial growth factor (VEGF) receptors (VEGFR1, VEGFR2, and VEGFR3). Additional RTK targets include Tie-2, and Ron. Those kinases are known to be involved in tumor development and angiogenesis. The objective of this Phase I study is to evaluate the safety, pharmacokinetics (PK) and pharmacodynamics (PD) of daily administration of MGCD265 in patients with solid tumors. Methods: This is a multicenter, open-label, dose escalation study of oral MGCD265 administered as a continuous 21-day cycle. Cohorts of 3–4 patients were enrolled per dose level, initially with dose doubling between cohorts, followed by smaller increments once grade 2 drug-related toxicity is observed. Dose limiting toxicity (DLT) was defined as: grade 4 neutropenia; grade 4 thrombocytopenia; any > grade 3 nonhematologic toxicity; severe/sustained hypertension; or any toxic effect leading to a patient missing > 4 doses of MGCD265. Treatment would continue until disease progression or toxicity. Results: Ten patients with advanced solid tumors have been treated. Characteristics: age range 25–75; gender: 8 M/2F; ECOG: 0 (1 patient); 1 (9 patients). At dose levels of 24, 48 and 96 mg/m2, no DLTs nor grade 2 or greater drug-related AEs during cycle 1 have been reported. Eight patients received treatment for 2 cycles or more. Preliminary PK profile after the first dose of administration shows a dose dependent increase in AUC and Cmax with an approximate mean half-life of 23 hours (see Table below). At the 96 mg/m2 dose, exposure was in the range of the lower end of the efficacious exposure in certain xenograft models. PD markers including plasma HGF and VEGF and shed/soluble receptors s-Met and s-VEGFR2 have been evaluated. Conclusions: Daily oral administration of MGCD265 was found to be well tolerated at doses of 24, 48, and 96 mg/m2. Further dose escalation is underway. [Table: see text] [Table: see text]


2011 ◽  
Vol 58 (3) ◽  
pp. 372-379 ◽  
Author(s):  
Lisa M. McGregor ◽  
Clinton F. Stewart ◽  
Kristine R. Crews ◽  
Michael Tagen ◽  
Amy Wozniak ◽  
...  

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 12007-12007
Author(s):  
R. A. Kosloff ◽  
J. Wright ◽  
P. Ivy ◽  
J. Escalon ◽  
B. Norwood ◽  
...  

12007 Background: B inhibits proteasome function and may be synergistic in causing apoptotic death with platinum agents. We were interested in combining B with OX but concerned with dose limiting (DL) NT based on our prior B phase I study [Hamilton et al., JCO 2005]: therefore this Phase I dose-escalation study (alternating increases of B and OX) focusing on NT was planned. Methods: Patients (pts) with metastatic solid tumors, PS 0–2, platinum or taxane naive, no peripheral neuropathy and adequate organ function, received B (D1, 4, 15, 18) and OX (D1, 15) every 28 days in a dose escalation design (see table ). Baseline and monthly assessments were performed by an independent neurologist. Results: 27 (18 gastrointestinal, 3 melanoma, 3 ovarian, 3 others) were accrued; pt characteristics: 14 male/13 female; median age 55 years (range 35–75); 2 median cycles (range 1–10). NT was not DL because it did not occur within the first cycle. Late and limiting NT was observed in levels 2–5 after 2–9 cycles, but serial neurologic evaluations showed reversible NT. With an amended new dose level to lower B to 1.0 mg/m2 (level 6) to avoid late NT, NT was not observed. Of 22 evaluable pts, there were 3 partial responses (ampullary, GE junction, biliary), 6 stable disease, and 13 disease progression by RECIST criteria. Conclusions: biweekly BOX is tolerable at B 1.0 mg/m2 and OX 85 mg/m2 with no DL NT. Additional observations on late NT are ongoing. This suggests B is a major contributor to NT observed in dose levels 2–5 and may potentiate the effects of OX. [Table: see text] [Table: see text]


2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 2578-2578
Author(s):  
Devalingam Mahalingam ◽  
Montaser F. Shaheen ◽  
John Sarantopoulos ◽  
Steven Weitman ◽  
Beppino C. Giovanella ◽  
...  

2578 Background: CZ48, the 20-O-propionate ester of camptothecin (CPT), is a prodrug of CPT first described by Cao et al. in 1998. The side-chain is enzymatically cleaved in tissues. This gives rise to CPT, a potent inhibitor of topoisomerase I. Methods: An open-label, single-arm, dose-escalation Phase I study was performed to determine the maximum tolerated dose (MTD) of CZ48 in patients with advanced solid tumors. Initial dosing started qd po 80mg/m2, advancing to 2560mg/m2 for 21 consecutive days, followed by 7 days rest. Dosing was restarted in cohorts of 3 patients tid po at 18mg/m2 and escalated to 1g/m2on a 5 days on, 2 days off schedule for 28 days. Patients were prescreened by measuring CPT levels in plasma following a single pilot dose of CZ48. Dose was doubled until occurrence of at least Grade 2 adverse event, at which time 3+3 patient cohorts with a dose escalation of 33%-100% were implemented. DLT in 2/6 patients defined the MTD as the preceding DLT dose. PK parameters were measured prior to dosing, days 1-5, and day 28 of Cycle 1. Results: Poor absorption led to initial qd dosing reaching 2560mg/m2 with no signs of DLT. Subsequent tid dosing showed improved plasma levels and arrival at DLT. 34 patients were treated across 8 dose levels from 18 to 1000 mg/m2. The most frequent study-related adverse effects were cystitis, vomiting, diarrhea and fatigue. Grade IV toxicities observed were febrile neutropenia, anemia, and thrombocytopenia. Preliminary PK data in the qd dosing showed poor correlation between dose and Cmax or AUC, while PK in tid patients showed slightly improved correlation between dose and both CZ48 AUC (Pearson's correlation coefficient ϱ=0.476, p<0.01) and CZ48 Cmax(ϱ =0.51, p<0.01). Evidence of clinical activity with stable disease ≥ 6 months was observed in 2 heavily pre-treated colon and one breast cancer patient. Conclusions: The MTD of tid po CZ48 administered 5 days on, 2 days off of 28-day cycle is between 750 mg/m2 and 576 mg/m2. Overall toxicity is relatively mild, with DLT being cystitis and myelosuppression. Even with tid dosing, PK values correlate poorly to dose. A new formulation with 3-5 fold higher preclinical absorption values is being considered for introduction into the trial. Clinical trial information: NCT00947739.


2006 ◽  
Vol 24 (4) ◽  
pp. 563-570 ◽  
Author(s):  
Wayne L. Furman ◽  
Kristine R. Crews ◽  
Catherine Billups ◽  
Jianrong Wu ◽  
Amar J. Gajjar ◽  
...  

PurposeIrinotecan is active against a variety of malignancies; however, severe diarrhea limits its usefulness. In our phase I study, the intravenous formulation of irinotecan was administered orally daily for 5 days for 2 consecutive weeks (repeated every 21 days) to children with refractory solid tumors. Our objectives were to determine the maximum-tolerated dose (MTD), dose-limiting toxicity, and pharmacokinetics of oral irinotecan and to evaluate whether coadministration of cefixime (8 mg/kg/d beginning 5 days before irinotecan and continuing throughout the course) ameliorates irinotecan-induced diarrhea.Patients and MethodsIn separate cohorts, irinotecan doses were escalated from 15 to 45 mg/m2/d without cefixime and then from 45 to 60 and 75 mg/m2/d with cefixime.ResultsWithout cefixime, diarrhea was dose limiting at irinotecan 45 mg/m2/d. Myelotoxicity was not significant at any dose. The MTD was 40 mg/m2/d without cefixime but 60 mg/m2/d with cefixime. Systemic exposure to SN-38 at the MTD was significantly higher with cefixime than without cefixime (mean SN-38 area under the curve: 19.5 ng×h/mL; standard deviation [SD], 6.8 ng × h/mL v 10.4 ng × h/mL; SD, 4.3 ng × h/mL, respectively; P = .030).ConclusionCefixime administered with oral irinotecan is well tolerated in children and allows greater dose escalation of irinotecan. Because diarrhea is a major adverse effect of both intravenous and oral irinotecan, further evaluation of the use of cefixime to ameliorate this adverse effect is warranted.


2011 ◽  
Vol 29 (15_suppl) ◽  
pp. 3035-3035 ◽  
Author(s):  
A. Patnaik ◽  
L. J. Appleman ◽  
J. M. Mountz ◽  
R. K. Ramanathan ◽  
M. Beeram ◽  
...  

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 3076-3076 ◽  
Author(s):  
Tae Min Kim ◽  
Keun-Wook Lee ◽  
Do-Youn Oh ◽  
Jong-Seok Lee ◽  
Seock-Ah Im ◽  
...  

3076 Background: HM781-36B is a pan-HER tyrosine kinase inhibitor, which showed a potent activity against the gefitinib- or erlotinib-resistant, EGFR L858R/T790M double mutant cells. A phase I study was conducted to determine the MTD, pharmacokinetics, and antitumor activity. Methods: Eligible pts had advanced malignancies refractory to standard therapies. Standard 3+3 scheme was used in the dose escalation part, and additional 12 pts were enrolled in the expansion cohort of molecular enrichment. Results: In dose-escalation part, 43 pts (median age: 55 yrs (range 25-82), M:F=25:18, ECOG PS 0/1/2/3: 23/17/2/1, median prior chemotherapy: 4) were treated. DLTs were G3 diarrheas in 5 pts, one at 12 mg, 16 mg, 24 mg, and two at 32 mg. The MTD was determined as 24mg. The most common drug-related adverse events were diarrhea, stomatitis, rash, pruritus, and anorexia. Among 41 evaluable pts, 4 pts achieved PR (1 unconfirmed, duration of response: 11.9 mo, 7.07 mo+, 4.5 mo+), and 19 pts had SD. Two of 4 PR pts were Her2-positive breast cancer pts. The median duration of treatment in pts with PR or SD was 3.87 (2.47- 15.17) months. In the dose range of 0.5 to 24 mg, it showed linear pharmacokinetics proportional to dose-escalation, relatively short half-life, and little accumulation. Additional 12 pts in the expansion cohort are under treatment at 24 mg (6 pts: EGFR-mutant NSCLC, 3 pts: Her2-positive gastric cancer, 2 pts: Her2-positive breast cancer, 1 pt: rectal cancer). Conclusions: HM781-36B was safe and well tolerable in advanced solid tumors. Preliminary evidence of anticancer activity has been observed. Updated data will be presented at the meeting.


2014 ◽  
Vol 32 (15_suppl) ◽  
pp. 2506-2506 ◽  
Author(s):  
Eric Angevin ◽  
Gianluca Spitaleri ◽  
Antoine Hollebecque ◽  
Tommaso De Pas ◽  
Jean-Charles Soria ◽  
...  

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