A Multicenter, Open-label, Phase 1b/2 Study to Evaluate the Safety and Efficacy of RX-0201 in Combination With Everolimus to Treat Subjects With Advanced Renal Cell Carcinoma

The purpose of this study is to determine the maximum tolerated dose of RX-0201, up to a target dose of 250 mg/m^2/day, when given in combination with everolimus (Stage 1), and to assess the safety and efficacy of RX-0201 plus everolimus, in subjects with metastatic renal cell cancer (Stage 2).

This multi-center, open-label, randomized, parallel group study of RX-0201 in combination with everolimus, versus everolimus alone to treat subjects with advanced renal cell carcinoma will be conducted in 2 stages. Stage 1 will be an open-label, dose-escalation study of RX-0201 to identify a safe and tolerable dose of RX-0201 up to a target dose of 250 mg/m^2/day when given in combination with everolimus. Stage 2 will be a randomized, open-label, 2-arm study of RX-0201 in combination with everolimus versus everolimus alone. Subjects will receive RX-0201, at the dose identified in Stage 1, in combination with everolimus or everolimus alone, for up to 8 cycles to determine safety and efficacy of the combination.

Study phase: II

Basic eligibility criteria:
Please contact the study coordinator for additional eligibility information.

Inclusion Criteria:
Males and females ? 18 years of age at screening
Histological or cytological diagnosis of renal cell cancer with a clear-cell component
Measurable or evaluable disease defined by Response Evaluation Criteria for Solid Tumors (RECIST) ver. 1.1
Must have received at least one course of therapy with a VEGFR-targeting tyrosine kinase inhibitor (eg, sorafenib, sunitinib, axitinib, pazopanib or tivozanib) and progressed within 6 months of planned first dose of study treatment
No more than 3 prior treatments of systemic therapy for renal cancer
ECOG performance status of 0,1 or 2
Life expectancy > 3 months

Exclusion Criteria:
Brain metastases or cranial epidural disease unless adequately treated with radiotherapy and/or surgery and stable for at least 3 months before planned first dose of study drug
Radiation therapy for bone metastasis within 2 weeks, any other external radiation therapy within 4 weeks before planned first dose of study drug. Systemic treatment with radionuclides within 6 weeks before planned first dose of study drug. Subjects with clinically relevant ongoing complications from prior radiation therapy are not eligible
Prior treatment with everolimus, or any other specific or selective TORC1/PI3K/AKT inhibitor (eg, temsirolimus)
Receipt of any type of small molecule kinase inhibitor (including investigational kinase inhibitor) within 2 weeks before planned first dose of study drug
Receipt of any type of anticancer antibody (including investigational antibody) within 4 weeks before planned first dose of study drug
Taking strong inducers or inhibitors of CYP450s for subjects receiving everolimus
Chronic treatment with corticosteroids or other immunosuppressive agents
Concomitant anticoagulation at therapeutic doses with oral anticoagulants or platelet inhibitors
Subjects with a known hypersensitivity to everolimus or other rapamycins (sirolimus, temsirolimus) or to its excipients
Major surgery within 2 months before planned first dose of study drug
Myocardial infarction within the previous 6 months before planned first dose of study drug
Active infection requiring parenteral antibiotics within 2 weeks before planned first dose of study drug
Diagnosis of another malignancy within 2 years before planned first dose of study drug, except for superficial skin cancers, or localized, low grade tumors
Prior or current history of hepatitis B, hepatitis C or human immunodeficiency virus
Sexually active fertile subjects (male and female) must agree to use medically accepted methods of contraception during the course of the study and for 30 days after the last dose of study treatment

Primary disease category: Cancer

Secondary disease categories: Cancer, Kidney Cancer, Kidney & Urinary Tract

Sponsor: Rexahn Pharmaceuticals

Protocol number: RX-0201-P2-A-09

Projected enrollment dates: March 2016 to September 2017

Official study title: A Multicenter, Open-label, Phase 1b/2 Study to Evaluate the Safety and Efficacy of RX-0201 in Combination With Everolimus to Treat Subjects With Advanced Renal Cell Carcinoma