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RFT5-dgA Immunotoxin in Treating Patients With Relapsed or Refractory Cutaneous T-Cell Non-Hodgkin Lymphoma

Phase 2
Terminated
Conditions
Lymphoma
Registration Number
NCT00667017
Lead Sponsor
University of Texas Southwestern Medical Center
Brief Summary

RATIONALE: Immunotoxins, such as RFT5-dgA immunotoxin (also called anti-CD25 immunotoxin IMTOX25), can find certain cancer cells and kill them without harming normal cells.

PURPOSE: This phase II trial is studying the side effects of anti-CD25 immunotoxin IMTOX25 and how well it works in treating patients with relapsed or refractory cutaneous T-cell non-Hodgkin lymphoma.

Detailed Description

OBJECTIVES:

Primary

* Determine the response rate of patients with relapsed or refractory cutaneous T-cell non-Hodgkin lymphoma (CTCL) following treatment with RFT5-dgA immunotoxin (anti-CD25 immunotoxin IMTOX25) .

Secondary

* Determine whether responses correlate with the level of CD25+ expression on the CTCL tumor cells.

* Determine whether changes in the pre-treatment and the post-treatment levels of CD4+CD25+ Treg cells correlate with responses.

OUTLINE: Patients receive anti-CD25 immunotoxin IMTOX25 IV over 4 hours on days 1, 3, and 5. Treatment repeats every 6 weeks for 6 courses in the absence of disease progression or unacceptable toxicity.

Tissue and blood samples are collected at baseline, and during study for CD25+ expression by fluorescent-activated cell sorter analysis, immunohistochemistry.

After completion of study therapy, patients are followed every 3 months for 2 years, every 6 months for 2 years, and then annually thereafter.

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
1
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Primary Outcome Measures
NameTimeMethod
Response Rate - Cutaneous T Cell Lymphoma (CTCL)Once a week for seven weeks

Response rate of patients with relapsed/refractory Cutaneous T Cell Lymphoma (CTCL) following treatment with IMTOX25.

Secondary Outcome Measures
NameTimeMethod

Trial Locations

Locations (1)

Simmons Comprehensive Cancer Center at University of Texas Southwestern Medical Center - Dallas

🇺🇸

Dallas, Texas, United States

Simmons Comprehensive Cancer Center at University of Texas Southwestern Medical Center - Dallas
🇺🇸Dallas, Texas, United States

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