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Carboxyamidotriazole in Treating Patients With Metastatic Kidney Cancer

A Phase II Randomized Discontinuation Trial Of Carboxyaminoimidazole (CAI, NSC 609974) In Metastatic Renal Carcinoma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00006486
Enrollment
335
Registered
2003-07-28
Start date
2000-10-31
Completion date
Unknown
Last updated
2013-01-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Recurrent Renal Cell Cancer, Stage IV Renal Cell Cancer

Brief summary

Randomized phase II trial to study the effectiveness of carboxyamidotriazole in treating patients who have metastatic kidney cancer. Carboxyamidotriazole may stop the growth of kidney cancer by stopping blood flow to the tumor

Detailed description

OBJECTIVES: I. Determine the toxicity and disease-stabilizing effect of carboxyamidotriazole in patients with metastatic renal cell carcinoma. II. Determine the objective response rate in patients treated with this drug. OUTLINE: This is a randomized, double-blind, multicenter study. Patients are stratified according to time from diagnosis of metastatic disease to study entry (fewer than 24 months vs 24 months or more). Patients receive oral carboxyamidotriazole (CAI) daily for 4 weeks. Treatment repeats for 4 courses in the absence of disease progression or unacceptable toxicity. After 4 courses, patients experiencing complete or partial response continue treatment until disease progression or unacceptable toxicity. Patients with stable disease are randomized to one of two treatment arms. Arm I: Patients receive oral CAI as above. Arm II: Patients receive a placebo. Treatment repeats every 4 weeks for at least 4 courses in the absence of disease progression or unacceptable toxicity. Patients experiencing disease progression are unblinded and those on placebo begin oral CAI as above. Patients are followed every 6 months. PROJECTED ACCRUAL: A maximum of 335 patients will be accrued for this study within 15-25 months.

Interventions

Given orally

OTHERplacebo

Given orally

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histologically confirmed renal cell carcinoma * Metastatic or unresectable disease * Documented disease progression, even after nephrectomy * At least 1 unidimensionally measurable lesion * At least 20 mm by conventional techniques * At least 10 mm by spiral CT scan * The following lesions are not considered measurable: * Bone lesions * Leptomeningeal disease * Ascites * Pleural/pericardial effusion * Abdominal masses not confirmed and followed by imaging * Cystic lesions * Performance status - CTC 0-2 * WBC at least 2,000/mm\^3 * Platelet count at least 75,000/mm\^3 * Bilirubin no greater than upper limit of normal (ULN) * AST no greater than 2.5 times ULN * Creatinine no greater than 2.0 mg/dL * Not pregnant or nursing * Fertile patients must use effective contraception * No baseline neuropathy or cerebellar dysfunction greater than grade 1 * At least 4 weeks since prior immunotherapy * No prior carboxyamidotriazole * No concurrent filgrastim (G-CSF) or sargramostim (GM-CSF) * Concurrent epoetin alfa allowed * At least 4 weeks since prior chemotherapy * No concurrent chemotherapy * No concurrent hormonal therapy except steroids for adrenal failure or hormones for conditions not related to disease (e.g., insulin for diabetes) * At least 4 weeks since prior radiotherapy * No concurrent palliative radiotherapy * See Disease Characteristics * At least 4 weeks since prior surgery

Design outcomes

Primary

MeasureTime frame
Proportion of patients progressing on placebo to the proportion progressing on CAIUp to 16 weeks
Proportions of patients with stable diseaseUp to 16 weeks
Objective responseUp to 16 weeks

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026