A Phase I Trial Evaluating mFOLFOX6 and Avastin With Nexavar as First-Line Treatment for Metastatic Colorectal Cancer
This research study is being performed at approximately 3 sites associated with Accelerated Community Oncology Research Network, Inc. (ACORN). Approximately 45 subjects will take part in this study.
In this study, everyone will receive the same dose of mFOLFOX6 and Avastin. There will be five groups of subjects. Each group of subjects will receive a higher dose of Nexavar than the previous group. This will continue until a subject group has a major side effects from the dose they are given. This is so that the sponsor can determine the highest dose of Nexavar that can be used with mFOLFOX6 and AVastin (this is called the maximum tolerated dose or MTD).
|Metastatic Colorectal Cancer||Drug: sorafenib Drug: bevacizumab Drug: mFOLFOX6 regimen||Phase 1|
|Study Design:||Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
|Official Title:||A Phase I Trial Evaluating mFOLFOX6 and Avastin With Nexavar as First-Line Treatment for Metastatic Colorectal Cancer|
- Determination of the Maximum Tolerated Dose (MTD) of Sorafenib When Given in Combination With mFOLFOX6 and Bevacizumab [ Time Frame: MTD was assessed during the first 2 cycles of treatment (i.e., the first 4 weeks of treatment since cycle length is 2 weeks) ]The MTD of sorafenib was determined using a standard 3 + 3 dose escalation cohort design. The total sample and the number of patients who receive each dose depends on the frequency of dose limiting toxicities (DLT) at each dosage. If 0 out of 3 patients experience a DLT at a given dosage level, 3 patients will be enrolled at the next dosage level. If greater than or equal to 2 patients experience a DLT at a given dosage level, dosage escalation will be stopped. If 1 out of 3 patients experience a DLT at a given dosage level, 3 patients are enrolled at the same dosage level.
- Determination of Progression Free Survival (PFS) Among Patients on This Regimen [ Time Frame: PFS was measured from day 1 of treatment until time of progression (assessed every 8 weeks) or death, whichever came first. ]PFS is defined as the duration of time from start of treatment to time of progression or death, whichever comes first.
- Determination of Quality of Life (QoL) as Indicated by Patient Care Monitor (PCM) Data Among Patients on This Regimen [ Time Frame: The PCM questionnaire was administered on day 1 of each cycle (approximately every 2 weeks) during study treatment. ]The subject answers questions from the following 6 categories: general physical symptoms, treatment side effects, distress, despair, impaired performance, and impaired ambulation. Each question has a scale from 0 through 10, where 0 is not a problem and 10 is as bad as possible. The frequency of patient reported severe (rated as >=7) symptoms reported from the set of symptoms assessed by the PCM.
|Study Start Date:||October 2008|
|Study Completion Date:||March 2011|
|Primary Completion Date:||March 2011 (Final data collection date for primary outcome measure)|
All eligible patients will receive the mFOLFOX6 regimen at full dose followed by IV bevacizumab 5mg/kg on Day 1 of each treatment cycle. Sorafenib will be administered daily throughout treatment beginning on day 1
Sorafenib will be administered daily starting day 1 at 200mg QOD at Dose Level 1; 200mg/day at Dose Level 2; 200mg BID (5 days on/ 2 days off) at Dose Level 3; 200mg BID at Dose Level 4; and 400mg BID at Dose Level 5.
Other Name: NexavarDrug: bevacizumab
Bevacizumab will be administered as 5mg/kg IV on Day 1 of each treatment cycle.
Other Name: AvastinDrug: mFOLFOX6 regimen
The mFOLFOX6 regimen will be administered on Day 1 of each treatment cycle. This regimen consists of oxaliplatin 85 mg/m2 IV given over 2 hours, leucovorin 400 mg/m2 IV given over 2 hours, and fluorouracil 400 mg/m2 IV bolus, followed by fluorouracil 1200 mg/m2 per day for 2 days continuous infusion.
This is an investigator-initiated, multicenter, network, Phase 1, open-label, dose-ranging study. The maximum sample size will be 45 patients (up to 30 patients for determining MTD at Phase I, and an additional 15 patients to provide for estimate of progression free survival). All eligible patients will receive the mFOLFOX6 regimen at full dose followed by IV bevacizumab 5mg/kg on Day 1 of each treatment cycle. Treatment cycle length is 2 weeks (Q2W). Sorafenib will be administered daily throughout treatment beginning on day 1.
Dose limiting toxicity will be defined as any grade 4 hematologic event or any grade 3 or 4 non-hematologic event occurring during cycle 1 or 2 that is attributable to sorafenib or the combination. The following events are excluded from this definition: grade 3 nausea and/or vomiting responsive to antiemetics; grade 3 fever or infection; grade 3 diarrhea responsive to antidiarrheal therapy.
Three patients will be enrolled at a dose level and observed for dose-limiting toxicities (DLTs) for 2 cycles of treatment. Dose escalation for sorafenib will depend on the number of patients experiencing DLT(s) as follows:
- If 0/3 patients experience DLT(s), then 3 more patients are treated at the next higher dose.
- If 1/3 patients experiences DLT(s), then 3 more patients are enrolled at that dose. If 1/6 of the patients treated at that dose experiences DLT(s), then the next cohort is treated at the next higher dose. However, if ≥2/6 patients experience DLT(s) at that dose, then the MTD is considered to have been exceeded. At that point, 3 more patients are treated at the next lower dose, unless 6 have already been treated at that lower dose.
- If ≥2/3 patients experience DLT(s) at a dose, then 3 more patients are enrolled at the next lower dose unless 6 patients have already been treated at that dose.
Dose escalation will continue until the MTD is determined or until all dose levels have been completed. The MTD is defined as the dose at which ≤1 of 6 patients experience DLT(s), and above which ≥2 of 6 patients experience DLT(s). If the MTD is at Dose Level 2 (or lower), then the study will be terminated and no further patients will be enrolled.
Once the MTD for sorafenib combined with mFOLFOX6 and bevacizumab has been determined, an additional 15 patients with mCRC will be enrolled into an extension of the Phase 1 study. These patients will be treated at the MTD for sorafenib with the combination therapy to assess PFS and safety of the regimen as first-line therapy in mCRC. All patients will be eligible for indefinite treatment in the absence of disease progression or unacceptable toxicity.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00779311
|United States, Georgia|
|Central Georgia Cancer Care|
|Macon, Georgia, United States, 31201|
|United States, Montana|
|Hematology Oncology Centers of the Northern Rockies|
|Billings, Montana, United States, 59101|
|United States, Tennessee|
|The West Clinic|
|Memphis, Tennessee, United States, 38120|
|Principal Investigator:||Fred Schnell, MD||Central Georgia Cancer Care|