Clinical Trial: GTI-2040 and Capecitabine in Treating Patients With Metastatic Breast Cancer

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: A Phase 2 Study of GTI-2040 (NSC 722929) in Combination With Capecitabine in Metastatic Breast Cancer

Brief Summary: This phase II trial is studying how well giving GTI-2040 together with capecitabine works in treating patients with metastatic breast cancer. Drugs used in chemotherapy, such as capecitabine, work in different ways to stop tumor cells from dividing so they stop growing or die. GTI-2040 may help capecitabine kill more tumor cells by making them more sensitive to the drug

Detailed Summary:

PRIMARY OBJECTIVES:

I. To evaluate the response rate and response duration to combination therapy with GTI-2040 and capecitabine in the treatment of metastatic breast cancer.

II. To safely evaluate the toxicity of this drug combination and schedule in this patient population by first using a lower dose followed by escalation.

III. To determine pharmacokinetic data on plasma levels of GTI-2040 in this patient population.

IV. To investigate potential molecular markers of ribonucleotide reductase inhibition and fluoropyrimidine metabolism in this patient population treated with the combination of GTI-2040 and capecitabine.

OUTLINE: This is a multicenter study.

Patients receive GTI-2040 IV continuously on days 1-15 of the first course and days 1-14 of all subsequent courses. Patients also receive oral capecitabine twice daily on days 2-15. Courses repeat every 21 days in the absence of disease progression or unacceptable toxicity.


Sponsor: National Cancer Institute (NCI)

Current Primary Outcome:

  • Maximum Tolerated Dose Determined by Dose-limiting Toxicities [ Time Frame: 21 days ]
    1st 3 pts will be treated on arm 2. If 0/3 DLTs observed, the dose will be escalated to arm 3. If 1/3 DLTs onserved on arm 2, 3 more pts will be treated on arm 2. If no additional DLTs are observed on arm 2, the dose will be escalated to arm 3. If at most 1/6 DLTs observed on arm 3, arm 3 will be considered the MTD. If more than 1/6 DLTs observed on arm 3, the dose will be de-escalated to arm 2. If at most 1/6 DLTs observed on arm 2, arm 2 will be considered the MTD. If more than 1/6 pts on arm 2 experience a DLT, the dose will be de-escalated to arm 1. The remaining pts will be treated on arm 1 as the MTD, unless more than 1/6 DLTs, in which case the study will stop. DLT is defined as any grade III or IV non-hematologic toxicity (incl. diarrhea w\ adequate antidiarrheal treatment & hydration & nausea/vomiting w\ maximal antiemetic prophylaxis, as per protocol) or grade IV hematologic toxicity. DLT will be based on the 1st course of treatment according to the revised NCI CTC v 2.0
  • Response Rate of a Combination of GTI-2040 and Capecitabine [ Time Frame: Up to 6 years ]
    Following the dose escalation step, additional patients will be accrued at the MTD and evaluated for disease response using RECIST v1.0 criteria. Patients with confirmed complete or partial response are considered to have responded favorably to treatment.The sample size and early stopping for futility was governed by a two stage Optimum design suggested by Simon. It was assumed that a true response rate less than 25% would not warrant further study of this agent. It was also assumed that a response rate of 45% would be considered promising. In the first stage (following t

    Original Primary Outcome:

    Current Secondary Outcome:

    Original Secondary Outcome:

    Information By: National Cancer Institute (NCI)

    Dates:
    Date Received: September 10, 2003
    Date Started: October 2003
    Date Completion:
    Last Updated: October 24, 2014
    Last Verified: January 2013