Completed

Phase I/II Trial Of Low Dose Suramin (CI-1003, NSC#34936) And 5-Fluorouracil In Patients With Metastatic Renal Cell Carcinoma (RCC)

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What is being tested

Fluorouracil

+ Pharmacological Study

+ Suramin

DrugOther
Who is being recruted

Urogenital Diseases+13

+ Adenocarcinoma

+ Carcinoma

Over 18 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Phase 1 & 2
Interventional
Study Start: March 2004
See protocol details

Summary

Principal SponsorNational Cancer Institute (NCI)
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: March 1, 2004

Actual date on which the first participant was enrolled.

PRIMARY OBJECTIVES: I. Determine the dose of suramin and fluorouracil that would result in plasma concentrations of suramin between 10-50 uM in patients with metastatic renal cell cancer. (Phase I) II. Determine the objective response rate (complete response and partial response) in patients treated with this regimen. (Phase II) SECONDARY OBJECTIVES: I. Determine the preliminary efficacy of this regimen in these patients. (Phase I) II. Determine the pharmacokinetics of low-dose suramin in these patients. (Phase I) III. Determine the time to tumor progression and progress rate at 3 and 6 months in patients treated with this regimen. (Phase II) OUTLINE: This is a dose-escalation phase I study followed by a phase II study. PHASE I: Patients receive suramin IV over 30 minutes and fluorouracil IV on days 1, 8, 15, 22, 29, and 36. Cohorts of 3-6 patients receive escalating doses suramin and fluorouracil until the dose level allowing 10-50 uM of suramin into the patient's blood is determined without 2 or more of 6 patients experiencing dose-limiting toxicity. PHASE II: Patients receive suramin and fluorouracil (at the dose level determined in phase I) as in phase I. In both phases, courses repeat every 8 weeks for up to 1 year in the absence of disease progression or unacceptable toxicity. Patients are followed for survival. PROJECTED ACCRUAL: A total of 36 patients will be accrued for this study.

Official TitlePhase I/II Trial Of Low Dose Suramin (CI-1003, NSC#34936) And 5-Fluorouracil In Patients With Metastatic Renal Cell Carcinoma (RCC) 
NCT00083109
Principal SponsorNational Cancer Institute (NCI)
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

36 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.



Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

Over 18 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Urogenital DiseasesAdenocarcinomaCarcinomaCarcinoma, Renal CellFemale Urogenital Diseases and Pregnancy ComplicationsKidney DiseasesKidney NeoplasmsNeoplasmsNeoplasms by Histologic TypeNeoplasms by SiteNeoplasms, Glandular and EpithelialUrogenital NeoplasmsUrologic DiseasesUrologic NeoplasmsFemale Urogenital DiseasesMale Urogenital Diseases

Criteria

Inclusion Criteria: * Histologically confirmed renal cell cancer * Metastatic disease * Measurable or evaluable disease * Measurable disease required for phase II * No untreated CNS metastasis or CNS metastases progressing ≤ 4 weeks after prior radiotherapy * Performance status - ECOG 0-1 * At least 12 weeks * Absolute neutrophil count ≥ 1,500/mm\^3 * Platelet count ≥ 100,000/mm\^3 * Hemoglobin ≥ 9.0 g/dL * AST ≤ 2.5 times upper limit of normal (ULN) * Alkaline phosphatase ≤ 5 times ULN * Bilirubin ≤ 1.5 mg/dL * Creatinine ≤ 1.8 mg/dL * Calcium ≤ ULN * No untreated hypercalcemia * No symptomatic congestive heart failure * No unstable angina pectoris * No cardiac arrhythmia * Not pregnant or nursing * Negative pregnancy test * Fertile patients must be surgically sterile or use effective contraception * No uncontrolled diabetes mellitus * No known severe hypersensitivity to suramin * No other concurrent uncontrolled illness * No active or ongoing infection * No active autoimmune disease * No neuropathy ≥ grade 2 * No psychiatric illness or social situation that would preclude study compliance * No other malignancy within the past 5 years except basal cell skin cancer, carcinoma in situ of the cervix, or localized prostate cancer * No concurrent filgrastim (G-CSF) * No more than 2 prior chemotherapy regimens for renal cell cancer (phase II only) * No concurrent corticosteroid dose more than physiologic replacement levels * See Disease Characteristics * At least 4 weeks since prior radiotherapy * No concurrent radiotherapy * Recovered from prior oncologic or other major surgery * At least 4 weeks since prior major surgery * No concurrent surgery * Recovered from all prior anticancer therapy other than alopecia (chronic toxicity \< grade 2) * At least 4 weeks since prior systemic therapy * More than 30 days since prior investigational drugs * Concurrent bisphosphonates allowed

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives

One single intervention group is designated in this study

This study does not include a placebo group 

Treatment Groups

Group I

Experimental
PHASE I: Patients receive suramin IV over 30 minutes and fluorouracil IV on days 1, 8, 15, 22, 29, and 36. Cohorts of 3-6 patients receive escalating doses suramin and fluorouracil until the dose level allowing 10-50 uM of suramin into the patient's blood is determined without 2 or more of 6 patients experiencing dose-limiting toxicity. PHASE II: Patients receive suramin and fluorouracil (at the dose level determined in phase I) as in phase I. In both phases, courses repeat every 8 weeks for up to 1 year in the absence of disease progression or unacceptable toxicity.

Study Objectives

Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

Cleveland Clinic Foundation

Cleveland, United StatesSee the location
CompletedOne Study Center