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A Phase II Uncontrolled Study of BAY73-4506 in Previously Untreated Patients With Metastatic or Unresectable RCC

Phase 2
Completed
Conditions
Carcinoma, Renal Cell
Interventions
Registration Number
NCT00664326
Lead Sponsor
Bayer
Brief Summary

This is a uncontrolled, open-label, non-randomized Phase II study of oral BAY73-4506 to evaluate the response rate of BAY73-4506 in previously untreated patients with metastatic or unresectable renal cell cancer (RCC).

Detailed Description

The final analysis of efficacy will be performed after last patient has been treated for at least 6 months. Additional periodic safety and efficacy data reviews will be performed for any patients continuing to receive study drug afterwards.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
49
Inclusion Criteria
  • Male or female patients >/= 18 years of age.
  • Patients, who suffer from unresectable and/or metastatic, measurable predominantly clear cell RCC (renal cell carcinoma histologically) or cytologically documented.
  • Patients must be previously untreated for advanced disease. Prior palliative radiation therapy is allowed if the target lesion(s) are not included within the radiation field and no more than 30% of the bone marrow is irradiated.
  • Patients who have at least one uni-dimensional measurable lesion by computed tomography (CT-scan) or magnetic resonance imaging (MRI) according to Response Evaluation Criteria in Solid Tumors (RECIST).
  • Patients with "Intermediate" or "Low" risk per the Motzer score.
  • Patients who have an Eastern Co-operative Oncology Group (ECOG) performance status of 0 or 1.
  • Adequate bone marrow, renal and hepatic function as assessed by the following laboratory requirements to be conducted within 7 days prior to study drug treatment
Exclusion Criteria
  • Patients who have received prior systemic treatment regimens for RCC.
  • Uncontrolled/unstable cardiac disease
  • Uncontrolled hypertension
  • Active clinically serious infections (> Common Terminology Criteria for Adverse Events [CTCAE] grade 2 )
  • History of human immunodeficiency virus (HIV) infection or chronic hepatitis B or C.
  • Known history or symptomatic metastatic brain or meningeal tumours
  • Patients with seizure disorder requiring medication
  • Patients with evidence or history of bleeding diathesis. Any hemorrhage or bleeding event >/= CTCAE Grade 3 within 4 weeks of first dose of study.
  • Pregnant or breast-feeding patients

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Regorafenib (Stivarga, BAY73-4506)Regorafenib (Stivarga, BAY73-4506)Participants received Regorafenib 160 mg per os (po) every day (qd) for 3 weeks on 1 week off of every 4 week cycle
Primary Outcome Measures
NameTimeMethod
Objective Tumor ResponseFrom start of treatment of the first participant until database cut-off approximately 13 months later (13May2008 - 31May2009). Assessed every 8 weeks for 6 months, then every 12 weeks

Objective tumor response of a participant was defined as the best tumor response (confirmed Complete Response \[CR, tumor disappears\] or Partial Response \[PR, sum of lesion sizes decreased at least 30% from baseline\]) observed during trial period assessed according to the Response Evaluation Criteria in Solid Tumors (RECIST) committee.

Tumor ResponseFrom start of treatment of the first participant until database cut-off approximately 13 months later (13May2008 - 31May2009). Assessed every 8 weeks for 6 months, then every 12 weeks

Tumor response of a participant was defined as the best tumor response (confirmed Complete Response \[CR, tumor disappears\], Partial Response \[PR, sum of lesion sizes decreased at least 30% from baseline\], Stable Disease \[SD, steady state of disease\], or Progressive Disease \[PD, sum of lesion sizes increased at least 20% from smallest sum on study or new lesions\]) observed during trial period assessed according to the RECIST committee.

Secondary Outcome Measures
NameTimeMethod
Overall SurvivalFrom start of treatment of the first participant until database cut-off approximately 13 months later (13May2008 - 31May2009).

Overall survival (OS) was calculated as the time from the first date of receiving study medication to death, due to any cause. Participants alive at the time of analysis were censored at their last date of follow-up.

Time to Progression (TTP)From start of treatment of the first participant until database cut-off approximately 13 months later (13May2008 - 31May2009). Assessed every 8 weeks for 6 months, then every 12 weeks

TTP was calculated as time from first date of receiving study drug until date of first documented disease progression (PD) (radiological or clinical, whichever was earlier). The actual date of tumor assessments (i.e., date on which radiological procedure was performed, rather than the scheduled date) was used for this calculation to determine both the event date and censoring date. Patients without PD at time of analysis were censored at last date of tumor evaluation.

Disease ControlFrom start of treatment of the first participant until database cut-off approximately 13 months later (13May2008 - 31May2009). Assessed every 8 weeks for 6 months, then every 12 weeks

Disease control was defined as the percentage of participants who had a best response rating of CR (tumor disappears), PR (sum of lesion sizes decreased at least 30% from baseline), or SD (steady state of disease) that was maintained for at least 28 days from the first demonstration of that rating.

Progression-free Survival (PFS)From start of treatment of the first participant until database cut-off approximately 13 months later (13May2008 - 31May2009). Assessed every 8 weeks for 6 months, then every 12 weeks

PFS was calculated as time from first date of receiving study drug until date of first observed disease progression (PD) (radiological or clinical, whichever was earlier) or death due to any cause, if death occurred before PD was documented. The actual date of tumor assessments (i.e., date on which radiological procedure was performed, rather than scheduled date) was used for this calculation to determine both the event date and censoring date. Patients without PD or death at time of analysis were censored at last date of tumor evaluation.

Duration of ResponseFrom start of treatment of the first participant until database cut-off approximately 13 months later (13May2008 - 31May2009). Assessed every 8 weeks for 6 months, then every 12 weeks

Duration of response was defined as the time from the first documented objective response of PR or CR, whichever was earlier, to disease progression or death (if death occurred before progression was documented). Duration of response for subjects who had not progressed or died at the time of analysis were censored at the date of their last tumor assessment.

Duration of Stable Disease (SD)From start of treatment of the first participant until database cut-off approximately 13 months later (13May2008 - 31May2009). Assessed every 8 weeks for 6 months, then every 12 weeks

Duration of SD was calculated as the time from the first date of receiving study drug until the date of documented PD or the last observation if the subject did not progress. Subjects without disease progression at the time of analysis were censored at the last date of tumor evaluation.

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