Study of RAD001 in Soft Tissue Extremity and/or Retroperitoneal Sarcomas

A Single-arm, Open Label Phase II Study of RAD001 in Soft Tissue Extremity and/or Retroperitoneal Sarcomas

The goal of this clinical research study is to learn if the study drug RAD001 can stop or slow the growth of resectable soft tissue sarcoma. The patient's physical state, their symptoms, changes in the size of the tumor, and laboratory findings obtained while on-study will help the research team decide if RAD001 is safe and effective in patients with this condition. The study drug, RAD001, is made by Novartis Pharmaceuticals Corporation.

A single-arm, open label, proof of principle phase II study exploring the efficacy of RAD001 in resectable soft tissue sarcomas either in the extremities, trunk or retroperitoneum. Patients with resectable sarcomas as detailed below were to have a core biopsy for molecular markers prior to therapy with RAD001 10mg PO daily x 2 weeks. Within 7-14 days of the end of therapy with RAD001, the patients were to be brought to surgery for definitive resection or, should they be candidates for neoadjuvant radiation, would have 6 16 gauge core biopsies taken percutaneously or using image guidance. Pharmacodynamic markers as detailed in the objectives were to be assessed in the laboratory.

Patients were to be numbered sequentially from 1 to 40, or more if there were patients that dropped out due to drug toxicity, with the goal of achieving 40 patients in accrual for evaluation of the pre- and post-treatment tumor samples for Pharmacodynamic assays.

Inclusion Criteria:

• Have a resectable primary or recurrent sarcoma according to diagnostic imaging criteria (computed tomography [CT] and/or magnetic resonance imaging [MRI]) that has not been previously irradiated.
• Primary/recurrent or persistent sarcoma must be amenable to core biopsy for pre RAD001 pharmacodynamic studies
• World Health Organization (WHO) performance status ≤ 2
• Adequate bone marrow function shown by: absolute neutrophil count (ANC) ≥ 1.5 x 10^9/L, Platelets ≥ 100 x 10^9/L, hemoglobin (Hb) >9 g/dL
• Adequate liver function shown by: serum bilirubin ≤ 1.5 x upper limit of normal (ULN); alanine transaminase (ALT) and aspartic transaminase (AST) ≤ 2.5x ULN
• International Normal Ratio (INR) and partial thromboplastin time (PTT) ≤1.5. (Anticoagulation allowed if target INR ≤ 1.5 on a stable dose of warfarin or on a stable dose of LMW heparin for > 2 weeks at time of randomization.)
• Adequate renal function: serum creatinine ≤ 1.5 x ULN
• Fasting serum cholesterol ≤300 mg/dL OR ≤7.75 mmol/L AND fasting triglycerides ≤ 2.5 x ULN. NOTE: In case one or both of these thresholds are exceeded, patient can only be included after initiation of appropriate lipid lowering medication.
• Signed informed consent
• Patients with resectable soft tissue extremity or retroperitoneal sarcomas amenable to pre-treatment core biopsy
• Biopsy proven surgically resectable retroperitoneal sarcomas of any histologic grade

Exclusion Criteria:

• Currently receiving anticancer therapies or have received anticancer therapies within 4 weeks of the start of study drug. Note: Primary/recurrent/ persistent sarcoma must not have been previously treated with radiation. Primary/recurrent or persistent sarcoma must not have been treated within 4 weeks of the start of RAD001 with other chemotherapeutic agents
• Have had a major surgery or significant traumatic injury within 4 weeks of start of study drug, have not recovered from the side effects of any major surgery (defined as requiring general anesthesia) or patients that may require major surgery during the course of the study
• Receiving chronic, systemic treatment with corticosteroids or another immunosuppressive agent. Topical or inhaled corticosteroids are allowed.
• Should not receive immunization with attenuated live vaccines within 1 week of study entry or during study period
• Brain or leptomeningeal metastases
• Other malignancies within the past 3 years except for adequately treated carcinoma of the cervix or basal or squamous cell carcinomas of the skin.
• Any severe and/or uncontrolled medical conditions or other conditions that could affect their participation in the study such as: Symptomatic congestive heart failure of New York Heart Association (NYHA) Class III or IV; unstable angina pectoris, symptomatic congestive heart failure, myocardial infarction within 6 months of start of study drug, serious uncontrolled cardiac arrhythmia or any other clinically significant cardiac disease; severely impaired lung function as defined as spirometry and diffusing lung capacity oxygenation (DLCO) that is 50% of the normal predicted value and/or 02 saturation that is 88% or less at rest on room air; uncontrolled diabetes as defined by fasting serum glucose >1.5 x ULN; active (acute or chronic) or uncontrolled severe infections; liver disease such as cirrhosis, chronic active hepatitis or chronic persistent hepatitis
• Known history of human immunodeficiency virus (HIV) seropositivity
• Impairment of gastrointestinal function or gastrointestinal disease that may significantly alter the absorption of RAD001
• Patients with an active, bleeding diathesis
• Females who are pregnant or breast feeding, or adults of reproductive potential who are not using effective birth control methods. If barrier contraceptives are being used, these must be continued throughout the trial by both sexes. Hormonal contraceptives are not acceptable as a sole method of contraception. (Women of childbearing potential must have a negative urine or serum pregnancy test within 7 days prior to administration of RAD001)
• Received prior treatment with an mTOR inhibitor (sirolimus, temsirolimus, everolimus).
• Known hypersensitivity to RAD001 (everolimus) or other rapamycins (sirolimus, temsirolimus) or to its excipients
• History of noncompliance to medical regimens
• Unwilling or unable to comply with the protocol
• Cutaneous sarcomas or sarcomas where neoadjuvant chemotherapy or radiation may be indicated in the treatment plan
• Sarcomas must be deemed fully resectable by pre-treatment imaging
• No evidence of distant disease