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Elimination of CD4+CD25+ Regulatory T Cells in Patients With Hepatocellular Carcinoma

This study has been completed.
Information provided by:
Hannover Medical School Identifier:
First received: November 6, 2006
Last updated: February 3, 2009
Last verified: February 2009
It has been shown that patients with advanced HCC have an increased frequency of CD4+CD25+ regulatory T cells. These cells might suppress tumor-specific immune responses. Cyclophosphamide has been shown to reduce the frequency of CD4+CD25+ regulatory T cells. The aim of this study is to test if the treatment with cyclophosphamide leads to a decrease in the frequency of CD4+CD25+ regulatory T cells and to increase tumor specific immune responses in patients with advanced HCC.

Condition Intervention Phase
Advanced HCC
Drug: Cyclophosphamide
Phase 3

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Elimination of CD4+CD25+ Regulatory T Cells in Patients With Advanced HCC After Treatment With Cyclophosphamide

Resource links provided by NLM:

Further study details as provided by Hannover Medical School:

Primary Outcome Measures:
  • Frequency of CD4+CD25+regulatory T cells [ Time Frame: within 8 weeks ]
  • Tumor specific immune responses [ Time Frame: within 12 weeks ]

Secondary Outcome Measures:
  • Toxicity [ Time Frame: within 8 weeks ]
  • Function and Phenotype of CD4+CD25+ regulatory T cells [ Time Frame: within 12 weeks ]
  • Tumor response [ Time Frame: within 12 weeks ]
  • Survival [ Time Frame: 6 months ]

Estimated Enrollment: 12
Study Start Date: February 2007
Study Completion Date: December 2008
Primary Completion Date: December 2008 (Final data collection date for primary outcome measure)
Intervention Details:
    Drug: Cyclophosphamide
    150 - 250 - 350 mg

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • adequate WBC
  • adequate liver and kidney function
  • no immunodeficiency
  • ECOG < 2

Exclusion Criteria:

  • advanced liver cirrhosis
  • severe cardiopulmonary diseases
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Please refer to this study by its identifier: NCT00396682

Medizinische Hochschule Hannover
Hannover, Germany, 30655
Sponsors and Collaborators
Hannover Medical School
Principal Investigator: Tim F Greten, M.D. Department of Gastroenterology, Medizinische Hochschule Hannover
Principal Investigator: Tim F Greten, M.D. Hannover Medical School
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Tim Greten, Med. Hochschule Hannover Identifier: NCT00396682     History of Changes
Other Study ID Numbers: HAN-HCC-002
DFG - KFO 119
Study First Received: November 6, 2006
Last Updated: February 3, 2009

Keywords provided by Hannover Medical School:
T cell

Additional relevant MeSH terms:
Immunosuppressive Agents
Immunologic Factors
Physiological Effects of Drugs
Antirheumatic Agents
Antineoplastic Agents, Alkylating
Alkylating Agents
Molecular Mechanisms of Pharmacological Action
Antineoplastic Agents
Myeloablative Agonists processed this record on May 25, 2017