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Safety and Pharmacokinetics of Regorafenib and Cetuximab in Combination

Phase 1
Completed
Conditions
Neoplasms
Interventions
Registration Number
NCT01973868
Lead Sponsor
Bayer
Brief Summary

To establish safety, tolerability and pharmacokinetics of regorafenib and cetuximab in combination, and to determine the maximum tolerated dose (MTD) and recommended Phase 2 dose (RP2D)

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
42
Inclusion Criteria
  • Patients with histologically or cytologically confirmed, locally advanced or metastatic solid tumors who are not candidates for standard therapy or in whom regorafenib or cetuximab is considered a standard treatment. Patients with metastatic colorectal cancer (mCRC) must have a record of K-ras gene mutational analysis available and no K-ras mutation is present.

  • Male or female patients ≥ 18 years of age

  • Women of childbearing potential must have a blood or urine pregnancy test performed a maximum of 7 days before start of study treatment, and a negative result must be documented before start of study treatment

  • Life expectancy of at least 3 months

  • Adequate bone marrow, liver and renal function as assessed by the following laboratory requirements conducted within 7 days of starting the study treatment:

    • Platelet count ≥ 100,000/cubic millimeters (mm3), hemoglobin (Hb) ≥ 8.5 g/dl, leukocyte count > 3,000/mm3, absolute neutrophil count (ANC) ≥ 1,000/mm3
    • Total bilirubin ≤ 1.5 x the upper limit of normal (ULN). Mildly elevated total bilirubin (< 6 mg/dL) is allowed if Gilbert's syndrome is documented.
    • Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 2.5 x ULN (≤ 5 x ULN for subjects with liver involvement of their cancer)
    • Alkaline phosphatase limit ≤ 2.5 x ULN (≤ 5 x ULN for subjects whose cancer involves their liver).
    • Amylase and lipase ≤ 1.5 x ULN
    • Serum creatinine ≤ 1.5 times ULN and creatinine clearance (CLcr) ≥ 30 mL/min according to the Cockroft-Gault formula
  • Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1

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Exclusion Criteria
  • Prior treatment with Regorafenib
  • Prior discontinuation of cetuximab treatment due to toxicity or intolerance of cetuximab
  • Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of study medication
  • Non-healing wound, ulcer, or bone fracture
  • Systemic anticancer therapy within 28 days
  • Patients unable to swallow and retain oral medications
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Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
RegorafenibCetuximab (ERBITUX)Regorafenib will be administered once daily on Days 1-21 of each 28-day Cycle (3 weeks on / 1 week off). The starting dose of regorafenib is 120 mg q.d., if this is tolerable in combination with cetuximab the dose will be escalated to 160 mg q.d.; if it is not tolerated the dose will be de-escalated to 80 mg q.d. Subjects will receive an initial i.v. infusion of cetuximab (loading dose of 400 mg/ m2 BSA) on Pre-cycle Day -7. The treatment of regorafenib in combination with cetuximab maintenance dose (250 mg/m2 BSA) starts on Cycle 1 Day 1. Cetuximab infusions will be given in a once-weekly dosing-regimen as approved.
RegorafenibRegorafenib (Stivarga, BAY73-4506)Regorafenib will be administered once daily on Days 1-21 of each 28-day Cycle (3 weeks on / 1 week off). The starting dose of regorafenib is 120 mg q.d., if this is tolerable in combination with cetuximab the dose will be escalated to 160 mg q.d.; if it is not tolerated the dose will be de-escalated to 80 mg q.d. Subjects will receive an initial i.v. infusion of cetuximab (loading dose of 400 mg/ m2 BSA) on Pre-cycle Day -7. The treatment of regorafenib in combination with cetuximab maintenance dose (250 mg/m2 BSA) starts on Cycle 1 Day 1. Cetuximab infusions will be given in a once-weekly dosing-regimen as approved.
Primary Outcome Measures
NameTimeMethod
Maximum tolerated dose (MTD) of regorafenib in combination with cetuximab1 month

MTD is defined as the maximum dose at which the incidence of dose-limiting toxicities (DLTs) during Cycle 1 is below 20 %, or as the maximum dose administered, whichever is achieved first during dose escalation

Cmax,md (Cmax after multiple dose) for regorafenib and cetuximabMultiple time points on Day 15
Number of participants with Adverse Events as a measure of safety and tolerabilityUp to 2 years or longer
AUC(0-24)md (AUC from time zero to 24 hours after multiple-dose administration) for regorafenibMultiple time points on Day 15
AUC(0-26)md (AUC from time zero to 26 hours after multiple-dose administration) for cetuximabMultiple time points on Day 15
Secondary Outcome Measures
NameTimeMethod
Tumor response according to RECIST 1.1Up to 2 years or longer
tlast,md (tlast after multiple dosing) for regorafenib, its metabolites M-2 (BAY75-7495) and M-5 (BAY81-8752) and cetuximabMultiple time points on Day 15
tmax,md (tmax after multiple-dose administration) for regorafenib, its metabolites M-2 (BAY75-7495) and M-5 (BAY81-8752) and cetuximabMultiple time points on Day 15
Cmax,md for metabolites M-2 (BAY75-7495) and M-5 (BAY81-8752)Multiple time points on Day 15

Trial Locations

Locations (4)

University of Colorado Hospital

🇺🇸

Aurora, Colorado, United States

University of Southern California

🇺🇸

Los Angeles, California, United States

University of Pittsburgh Medical Center Health System

🇺🇸

Pittsburgh, Pennsylvania, United States

Washington University School of Medicine

🇺🇸

Saint Louis, Missouri, United States

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