CONKO-008: Oxaliplatin (O)/folinic acid (FA)/5-fluorouracil (5-FU) (24h) in combination with lapatinib as second-line therapy in pancreatic cancer after gemcitabine failure: A phase I trial.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e14533-e14533
Author(s):  
Jens Stieler ◽  
Uwe Pelzer ◽  
Marianne Sinn ◽  
Jana Kaethe Striefler ◽  
Bernd Dörken ◽  
...  

e14533 Background: ErbB-1 and ErbB-2 as its enhancer are expressed in pancreatic cancer. Based on the results of the 2nd-line chemotherapy (CT) with Oxaliplatin, 5-FU and Folinic acid (OFF) (CONKO-003; ASCO 2008) and the activity of EGFR- tyrosine kinase inhibition in pancreatic cancer (Moore JCO 2007), this trial aims to further improve therapeutic options for patients after Gemcitabine failure by combining OFF with lapatinib, a combined ErbB-1 and ErbB-2 tyrosine kinase inhibitor which showed preclinical synergy with 5-FU (Kim PloS One 2009). Methods: The daily dose of lapatinib combined with oxaliplatin 85 mg/m2 (2-4 h infusion d 8, 22), 5-FU 2000 mg/m2 (24 h continuous infusion d1,8,15,22 q d 42) and FA 200 mg/m2 (30 min infusion d1,8,15,22 q d 42). was expected to be between 750 to 1,500 mg, further dose intensification was not planned. Starting dose for lapatinib was set on 1,000 mg/day, with a minimum of 3 pts. on each level and extension to 6 pts. in case of a dose limiting toxicity (DLT). Maximum tolerated dose (MTD) was defined as a dose level (DL) below the level where 2/6 patients would show DLTs during cycle 1. Results: 18 Pts (12m/6w). have been enrolled in the trial.7 pts. were treated on 1,000 mg/d (DL 1), 5 pts. on level 1,250 mg/d (DL 2), and 6 pts. on 1,500 mg (DL 3). DLTs were met on DL 3 with diarrhea CTC grade 4 and concomitant neutropene enterocolitis in one patient and diarrhea CTC grade 3 in another patient. MTD is thus limited to 1,250 mg lapatinib in combination with OFF. Conclusions: With diarrhea as most prominent cumulative toxicity of the regimen, the maximum dose of lapatinib in combination with OFF is 1,250 mg. This dose may find further use in future phase II trials.

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 4122-4122 ◽  
Author(s):  
T. Kuo ◽  
A. Fitzgerald ◽  
H. Kaiser ◽  
B. I. Sikic ◽  
G. A. Fisher

4122 Background: The VEGF pathway is the predominant mediator of angiogenesis in pancreatic cancer. Vatalanib (PTK787/ZK 222584) is a small molecule tyrosine kinase inhibitor of all known VEGF receptors. We initiated a phase I study of vatalanib and gemcitabine for advanced pancreatic cancer. Methods: Patients with newly diagnosed unresectable or metastatic pancreatic adenocarcinoma were enrolled. Previous adjuvant chemoradiotherapy with fluorouracil was allowed. Gemcitabine was given by fixed-dose rate infusion weekly x 3 in a 28-day cycle, and vatalanib was given orally daily. Dose-limiting toxicities (DLT) are defined as any grade 3/4 toxicity during the first cycle. The dose levels are as follows: Results: To date, 11 patients are evaluable for toxicity (5M/6F; median age 62 years, range 40–82 years; median KPS 90%). Thus far, 42 cycles have been given, with a median of four cycles per patient. Two patients have experienced DLT. The first patient (cohort 1) experienced grade 3 diarrhea and hypokalemia and grade 4 neutropenia occurring simultaneously and treated without sequelae. The second patient (cohort 3) developed grade 3 deep vein thrombosis. Beyond the first cycle, grade 3 toxicities included neutropenia (1), anemia (3), thrombocytopenia (1), hypertension (2), diarrhea (1), hypokalemia (1), thrombosis (1), and proteinuria (1). Three of eleven patients (27%) did not complete treatment to the first evaluation timepoint (2 cycles); two discontinued due to toxicity and one discontinued due to disease progression. Two of eleven patients (18%) had a partial response by RECIST. Six of eleven patients (55%) had stable disease as the best response ranging from 2–6 months. Conclusions: The combination of gemcitabine and vatalanib is generally well-tolerated with most grade 3/4 toxicities occurring late in the treatment course. Antitumor responses have been observed at initial dose levels and accrual to the final cohort with BID dosing of vatalanib continues. [Table: see text] No significant financial relationships to disclose.


2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 4537-4537 ◽  
Author(s):  
E. A. Ronnen ◽  
G. V. Kondagunta ◽  
C. Lau ◽  
P. Fischer ◽  
M. S. Ginsberg ◽  
...  

4537 Background: Sunitinib malate (SU11248) is an oral multitargeted tyrosine kinase inhibitor of VEGF and PDGF receptors. Two phase II trials with sunitinib given as second line therapy in patients with mRCC showed a ≥40% response rate (JCO 2006;24:16–24; Proc ASCO 23,380s). Combining sunitinib and gefitinib (an EGFR inhibitor) may enhance antitumor activity by providing a broader spectrum of tyrosine kinase inhibition. The maximum tolerated dose (MTD) of sunitinib in combination with gefitinib was assessed in this Phase I trial. Methods: Patients with mRCC previously treated with cytokine therapy were enrolled in the study. Cohorts of 4–6 patients received escalating doses of sunitinib and a fixed dose of gefitinib. Dose levels of sunitinib were 37.5 mg and 50 mg. Dose limiting toxicity (DLT) was defined as Grade 4 hematologic toxicity, Grade 3 nonhematologic toxicity of ≥7 days or a Grade 2 cardiac toxicity. Six-week treatment cycles comprised of sunitinib daily for 4 weeks followed by 2 weeks off and continuous gefitinib at 250 mg daily except in Cycle 1 where gefitinib was begun on Day 10. Results: In the first dose level (n=4, 37.5 mg of sunitinib and 250 mg of gefitinib), no DLTs were observed. In the second dose level (50 mg of sunitinib and 250 mg of gefitinib), there were 7 patients enrolled, but 1 patient had dose reduction for hypertension during the sunitinib monotherapy part of the study and was not included in the cohort defining MTD. 2 of 6 patients experienced a DLT (Grade 2 decline in ejection fraction, persistent Grade 3 fatigue) and the MTD was determined as 37.5 mg of sunitinib with 250 mg of gefitinib. Grade 3 adverse events included: diarrhea (n = 2) and hand/foot syndrome (n = 2). Laboratory abnormalities included grade 4 neutropenia (n = 1), grade 3 neutropenia (n = 2), and grade 3 thrombocytopenia (n = 2). Overall, 5 of 11 patients demonstrated a partial response and patient accrual to the phase 2 portion of the study is underway. Conclusions: The combination of sunitinib and gefitinib in mRCC patients was well tolerated and MTD was determined. The efficacy and toxicity of this combination is being assessed in a phase II component of this trial. [Table: see text]


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 10012-10012 ◽  
Author(s):  
B. C. Widemann ◽  
E. Fox ◽  
P. C. Adamson ◽  
S. Baruchel ◽  
A. Kim ◽  
...  

10012 Background: Sorafenib, an oral multitargeted kinase inhibitor, is indicated for treatment of adults with refractory renal cell or hepatocelluar carcinoma. We performed a phase I trial to determine the toxicities, maximum tolerated dose (MTD), pharmacokinetics (PK), and pharmacodynamics (PD) of sorafenib in children with refractory solid tumors. Methods: Sorafenib was administered q12h for 28 consecutive day cycles. Cohorts of 3–12 patients were enrolled at 105, 130, 150, 200, and 250 mg/m2/dose dose levels. Results: 34 eligible pts [16M, median age 14.6 yrs, (range, 5–21)] with osteosarcoma (n = 8), rhabdomyosarcoma (n = 3), other sarcomas (n = 13), hepatoblastoma (n = 3), or other solid tumors (n = 7) received 1–22 cycles (median 2). Grade 3 dose-limiting toxicity (DLT) occurred in 4/6 pts at the starting dose (150 mg/m2) and included hypertension (n = 1), rash/urticaria (n = 1), back pain (n = 1), thrombocytopenia (n = 1) and ALT/AST (n = 1). No DLTs were observed at 105 (n = 6) or 130 (n = 3) mg/m2, and the dose was re-escalated to 150 mg/m2 with modified eligibility criteria (normal ALT) and revised guidelines for grading and management of hypertension. Gr 3 DLTs occurred in 1/6 pts (lipase) at 150 mg/m2 and 2/2 pts (hyponatremia, hand-foot syndrome) at 250 mg/m2. At 200 mg/m2 only 1/6 pts experienced DLT (gr 3 ALT). No objective responses were observed, but 2 pts had tumor shrinkage. Sorafenib AUC did not increase proportionally with dose - the mean AUC0–24h was similar at 150 mg/m2 (28±24 μg · h/mL, n = 9) and 200 mg/m2 (28±17 μg · h/mL, n = 4). Tmax was prolonged and variable (10±11 h, n = 19). Plasma VEGFR (n = 13) decreased from 9.9±1.6 ng/mL at baseline to 8.3±1.7 ng/mL by d 28 (p < 0.001). Conclusions: The MTD of sorafenib in children with solid tumors is 200 mg/m2, similar to the adult recommended dose (400 mg). No significant financial relationships to disclose.


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 3511-3511
Author(s):  
A. A. Adjei ◽  
R. B. Cohen ◽  
R. Kurzrock ◽  
G. S. Gordon ◽  
D. Hangauer ◽  
...  

3511 Background: Src kinase is central to the proliferation, apoptosis and metastasis of tumor cells. KX2–391 is a synthetic, orally bioavailable small molecule Src tyrosine kinase signaling inhibitor. KX2–391 is distinct from all other known Src kinase inhibitors in targeting the peptide substrate-binding site and not the ATP-binding site. KX2–391 is the first peptide site targeted tyrosine kinase inhibitor to enter clinical trials. KX2–391 has a much wider spectrum of solid tumor activity in vitro, and is more potent in mouse xenografts, as compared to other multikinase Src/Abl inhibitors. Methods: This multi-center Phase 1 trial utilized the standard 3+3 design to determine the Maximum Tolerated Dose (MTD), safety, and pharmacokinetics (PK) of KX2–391 in pts with refractory solid tumors. Results: To date, 32 pts (12 m 20 f, median age 59 (range 31–78)) have been enrolled in 7 dose cohorts. Dose limiting toxicities (DLTs), which were all reversible within 7 days, occurred in 4 pts and included elevated ALT and AST, neutropenia, and fatigue. 22 pts experienced no Grade 3 or 4 adverse events. Other Grade 1/2 adverse events include: hypokalemia, anemia, elevated AST, fatigue, dyspnea, fever, vomiting, constipation, hematuria, and lymphopenia. The MTD is 40 mg BID on a 3 out of 4 weeks dosing schedule. 7 pts had prolonged stable disease for 4 months or longer including 2 pts with papillary thyroid carcinoma, 2 with carcinoid, and 1 each with prostate, pancreas, and head and neck cancer. Both the prostate and pancreatic cancer pts had dramatic decreases in their biomarkers (PSA went from 205 ng/ml to 39 ng/ml, and CA19–9 went from 38,838 U/ml to 267 U/ml, respectively). The PK profile demonstrated dose-proportionality, a half-life of 4.5 hrs and a Tmax of 1 hr with no evidence of accumulation with multiple doses. Conclusions: KX2–391 has a favorable PK profile, is well-tolerated, demonstrates preliminary evidence of biologic activity and should be further evaluated in Phase II trials. [Table: see text] [Table: see text]


2014 ◽  
Vol 32 (3_suppl) ◽  
pp. 220-220 ◽  
Author(s):  
Eileen Mary O'Reilly ◽  
Lon S. Smith ◽  
Johanna C. Bendell ◽  
Fatima A. Rangwala ◽  
William Schmidt ◽  
...  

220 Background: OMP-59R5, a fully human IgG2 antibody, inhibits signaling of Notch2 and 3 receptors. Tumor regression was seen in Notch3 expressing patient-derived pancreatic cancer xenografts when OMP-59R5 was combined with Nab-P+Gem. The maximum tolerated dose (MTD) of single agent OMP-59R5 was 7.5 mg/kg every other week (Smith, EORTC 2012); the main dose limiting toxicity (DLT) was grade 3 diarrhea. This study is to determine the MTD, pharmacokinetics (PK), pharmacodynamics (PD), and preliminary efficacy of OMP-59R5 in combination with Nab-P+Gem in mPC. Methods: Cohorts of 3 to 6 pts were treated at each dose level of OMP-59R5. OMP-59R5 is given intravenously every other week (days 1 and 15) with GEM 1,000 mg/m2 alone (first two cohorts) or nab-P 125 mg/m2 and GEM 1,000 mg/m2 on days 1, 8, and 15 of every 28-day cycle. Results: By August 30, 2013, 24 pts were treated. No DLTs have occurred. Frequently reported (≥10%) OMP-59R5 treatment-related adverse events (AEs) were: diarrhea (44%), fatigue (44%), and nausea (16%); most were grade 1 or 2 and managed with supportive care. Frequent chemo-related AEs (≥10%) were cytopenia, fatigue, diarrhea, and nausea. GEM or Nab-P+Gem did not alter PK of OMP-59R5. See table for additional data. Conclusions: OMP-59R5 with Nab-P+ Gem is well tolerated. The MTD has not been reached. Encouraging anti-tumor activity is observed. Updated Safety, PK/PD, and efficacy data will be presented. Clinical trial information: NCT01647828. [Table: see text]


1998 ◽  
Vol 16 (10) ◽  
pp. 3246-3256 ◽  
Author(s):  
G L DeNardo ◽  
S J DeNardo ◽  
D S Goldstein ◽  
L A Kroger ◽  
K R Lamborn ◽  
...  

PURPOSE Lym-1, a monoclonal antibody that preferentially targets malignant lymphocytes, has induced remissions in patients with non-Hodgkin's lymphoma (NHL) when labeled with iodine 131 ((131)I). Based on the strategy of fractionating the total dose, this study was designed to define the maximum-tolerated dose (MTD) and efficacy of the first two, of a maximum of four, doses of (131)I-Lym-1 given 4 weeks apart. Additionally, toxicity and radiation dosimetry were assessed. MATERIALS AND METHODS Twenty patients with advanced NHL entered the study a total of 21 times. Thirteen (62%) of the 21 entries had diffuse large-cell histologies. All patients had disease resistant to standard therapy and had received a mean of four chemotherapy regimens. (131)I-Lym-1 was given after Lym-1 and (131)I was escalated in cohorts of patients from 40 to 100 mCi (1.5 to 3.7 GBq)/m2 body surface area. RESULTS Mean radiation dose to the bone marrow from body and blood (131)I was 0.34 (range, 0. 1 6 to 0.63) rad/mCi (0.09 mGy/MBq; range, 0.04 to 0.17 mGy/ MBq). Dose-limiting toxicity was grade 3 to 4 thrombocytopenia with an MTD of 100 mCi/m2 (3.7 GBq/m2) for each of the first two doses of (131)I-Lym-1 given 4 weeks apart. Nonhematologic toxicities did not exceed grade 2 except for one instance of grade 3 hypotension. Ten (71 %) of 14 entries who received at least two doses of (131)I-Lym-1 therapy and 11 (52%) of 21 total entries responded. Seven of the responses were complete, with a mean duration of 14 months. All three entries in the 100 mCi/m2 (3.7 MBq/m2) cohort had complete remissions (CRs). All responders had at least a partial remission (PR) after the first therapy dose of (131)I-Lym-1. CONCLUSION (131)I-Lym-1 induced durable remissions in patients with NHL resistant to chemotherapy and was associated with acceptable toxicity. The nonmyeloablative MTD for each of the first two doses of (131)I-Lym-1 was 100 mCi/m2 (total, 200 mCi/m2) (3.7 GBq/m2; total, 7.4 GBq/m2).


1998 ◽  
Vol 16 (9) ◽  
pp. 3037-3043 ◽  
Author(s):  
H S Nicholson ◽  
M Krailo ◽  
M M Ames ◽  
N L Seibel ◽  
J M Reid ◽  
...  

PURPOSE The Children's Cancer Group conducted a phase I trial of temozolomide stratified by prior craniospinal irradiation (CSI). PATIENTS AND METHODS Children and adolescents with recurrent or progressive cancer were enrolled. Temozolomide was administered orally daily for 5 days, with subsequent courses administered every 21 to 28 days after full hematologic recovery. Dose levels tested included 100, 150, 180, 215, 245, and 260 mg/m2 daily. RESULTS Twenty-seven patients on the non-CSI stratum were assessable for hematologic toxicity. During the first three dose levels (100, 150, and 180 mg/m2 daily), only grades 1 and 2 hematologic toxicity occurred. One patient at 215 mg/m2 daily had grade 3 hematologic toxicity. Three of eight patients (38%) treated at 245 to 260 mg/m2 daily had dose-limiting toxicity (DLT), which included both neutropenia and thrombocytopenia. Twenty-two patients on the CSI stratum were assessable for hematologic toxicity. Hematologic DLT occurred in one of six patients (17%) at 100 mg/m2 daily and in two of four patients (50%) at 215 mg/m2 daily. No nonhematologic DLT occurred; nausea and vomiting occurred in more than half of the patients. After two courses of temozolomide, 10 patients had stable disease (SD), and three patients had a partial response (PR), one of whom subsequently had a complete response (CR) that persists through 24 months of follow-up. CONCLUSION The maximum-tolerated dose (MTD) of temozolomide for children and adolescents without prior CSI is 215 mg/m2 daily and for those with prior CSI is 180 mg/m2 daily for 5 days, with subsequent courses that begin on day 28. Temozolomide is well tolerated and should undergo phase II testing in children and adolescents.


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