Antineoplaston Therapy in Treating Patients With Stage IV Kidney Cancer

Phase II Study of Antineoplastons A10 and AS2-1 In Patients With Carcinoma of the Kidney

Current therapies for Stage IV Kidney Cancer provide very limited benefit to the patient. The anti-cancer properties of Antineoplaston therapy suggest that it may prove beneficial in the treatment of Stage IV Kidney Cancer.

PURPOSE: This study is being performed to determine the effects (good and bad) that Antineoplaston therapy has on patients with Stage IV Kidney Cancer.

OVERVIEW: This is a single arm, open-label study in which patients with Stage IV Kidney Cancer receive gradually escalating doses of intravenous Antineoplaston therapy (Atengenal + Astugenal) until the maximum tolerated dose is reached. Treatment continues up to12 months in the absence of disease progression or unacceptable toxicity.

OBJECTIVE S:

• To determine the efficacy of Antineoplaston therapy in patients with Stage IV Kidney Cancer, as measured by an objective response to therapy (complete response, partial response or stable disease).
• To determine the safety and tolerance of Antineoplaston therapy in patients with Stage IV Kidney Cancer.
• To determine objective response, tumor size is measured utilizing MRI scans, which are performed every 8 weeks for the first two years, every 3 months for the third and fourth years, every 6 months for the 5th and sixth years, and annually thereafter.

DISEASE CHARACTERISTICS:

• Histologically confirmed stage IV adenocarcinoma or transitional cell carcinoma of the kidney that is unlikely to respond to existing therapy
• Measurable disease by MRI or CT scan
• Tumor must be more than 2 cm for lymph nodes in head, neck, axillary, inguinal, or femoral areas and at least 0.5 cm for other locations

PATIENT CHARACTERISTICS:

Age:

• 18 and over

Performance status:

• Karnofsky 60-100%

Life expectancy:

• At least 2 months

Hematopoietic:

• WBC at least 2,000/mm^3
• Platelet count at least 50,000/mm^3

Hepatic:

• No hepatic insufficiency
• Bilirubin no greater than 2.5 mg/dL
• SGOT and SGPT no greater than 5 times upper limit of normal

Renal:

• No renal insufficiency
• Creatinine no greater than 2.5 mg/mL
• No history of renal conditions that contraindicate high dosages of sodium

Cardiovascular:

• No known chronic heart failure
• No uncontrolled hypertension
• No history of congestive heart failure
• No history of other cardiovascular conditions that contraindicate high dosages of sodium

Pulmonary:

• No severe lung disease, such as chronic obstructive pulmonary disease

Other:

• Not pregnant or nursing
• Fertile patients must use effective contraception during and for 4 weeks after study participation
• Not a high medical or psychiatric risk
• No concurrent nonmalignant systemic disease that would preclude therapy
• No active infection

PRIOR CONCURRENT THERAPY:

Biologic therapy:

• At least 4 weeks since prior immunotherapy
• No concurrent immunomodulatory agents

Chemotherapy:

• At least 4 weeks since prior chemotherapy (6 weeks for nitrosoureas) and recovered
• No concurrent antineoplastic agents

Endocrine therapy:

• Concurrent corticosteroids allowed

Radiotherapy:

• At least 8 weeks since prior radiotherapy and recovered

Surgery:

• Recovered from prior surgery

Other:

• Prior cytodifferentiating agents allowed
• No prior antineoplastons