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Antiviral Treatment of Chronic Lymphocytic Leukemia (VGCV-CLL)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01255644
Recruitment Status : Completed
First Posted : December 7, 2010
Last Update Posted : July 21, 2015
Information provided by (Responsible Party):
Dr. Christoph Steininger, Medical University of Vienna

Brief Summary:
Chronic lymphocytic leukemia (CLL) is increasingly believed to be closely related to chronic stimulation of healthy B-cells. Identification of antigen(s) are relevant for the stimulation of CLL precursor cells is therefore of high interest. The investigators found recently evidence that a herpes virus is involved in this process of stimulation. Consequently, elimination of the antigenic stimulation of leukemic cells by this herpes virus may be expected to reduce or even inhibit propagation of leukemic cells. The investigators hypothesize that inhibition of CMV replication by a short course of antiviral treatment may reduce significantly proliferation rates of leukemic cells. To test this hypothesis, the investigators will treat 20 CLL patients with an antiviral drug for 3 months in a proof-of-concept clinical trial and leukemic cell counts measured before and after antiviral treatment. Antiviral treatment has the potential to treat the disease at its origin and therefore more efficiently than conventional chemotherapeutic regimens.

Condition or disease Intervention/treatment Phase
Chronic Lymphocytic Leukemia Drug: Valganciclovir Phase 4

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 20 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Treatment of Chronic Lymphocytic Leukemia With the Use of an Antiviral Compound - a Proof of Principle Study
Study Start Date : December 2010
Actual Primary Completion Date : July 2015
Actual Study Completion Date : July 2015

Arm Intervention/treatment
Experimental: Antiviral drug Drug: Valganciclovir
900 mg every 24 hours per os, day 1 through 90
Other Name: Valcyte

Primary Outcome Measures :
  1. Leukocyte count [ Time Frame: Month 12 ]

Information from the National Library of Medicine

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

Inclusion Criteria:

  • CLL confirmed by immunophenotyping and a relative preponderance of leukemic cells of >70%
  • ANC >1.500 /µl, Thrombocyte count >100.000 /µl und hemoglobin value >11 g/dl
  • CLL patients with expression of immunoglobulin heavy chains (IGHV) 1-69 or 3-21
  • Seropositive for CMV-specific IgG-antibodies
  • Older than 18 years of age
  • Written informed consent
  • Able to comply with the protocol
  • If female, should not be pregnant or be breast-feeding. Women of child-bearing age must have a negative serum pregnancy test within 28days prior to enrollment into the study, if a serum pregnancy test is not performed within 7 days prior first IMP administration; a confirmatory urine test is required.

Exclusion Criteria:

  • Indications for treatment of CLL (advanced stages of the disease)
  • Having receiving chemotherapy for CLL within 3 months prior to enrollment
  • Having received antiviral drugs or i.v. immunoglobulins within 3 months prior to enrollment
  • Significant thrombocytopenia (<100.000/µl) or anemia (Hb < 11 g/dl)
  • Women of child bearing age not using effective contraception
  • Pregnant of lactating female (as determined by a positive pregnancy test at screening or within 7 days prior to first IMP administration)
  • Known hypersensitivity to drug or its excipients

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01255644

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Medical University of Vienna
Vienna, Austria, 1090
Sponsors and Collaborators
Medical University of Vienna
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Principal Investigator: Christoph Steininger, MD Medical University of Vienna
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Responsible Party: Dr. Christoph Steininger, Principal Investigator, Medical University of Vienna Identifier: NCT01255644    
Other Study ID Numbers: EudraCT_2010-021786-78
First Posted: December 7, 2010    Key Record Dates
Last Update Posted: July 21, 2015
Last Verified: July 2015
Additional relevant MeSH terms:
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Leukemia, Lymphoid
Leukemia, Lymphocytic, Chronic, B-Cell
Neoplasms by Histologic Type
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases
Leukemia, B-Cell
Antiviral Agents
Anti-Infective Agents