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Treating Severe Chronic Epstein-Barr Virus (EBV) Infection With EBV Specific Cytotoxic T Lymphocytes (CTLs) (SCAEBV)

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ClinicalTrials.gov Identifier: NCT00058591
Recruitment Status : Completed
First Posted : April 9, 2003
Last Update Posted : January 18, 2020
The Methodist Hospital Research Institute
Center for Cell and Gene Therapy, Baylor College of Medicine
Information provided by (Responsible Party):
Helen Heslop, Baylor College of Medicine

Brief Summary:

Severe chronic active Epstein-Barr virus (SCAEBV) is a rare Epstein-Barr virus (EBV or commonly known as mono or the kissing disease) associated disorder. This disorder may cause chronic tiredness and fevers and sometimes be complicated by life threatening problems such as multi-organ failure, chronic (ongoing) pneumonia, and lymphoproliferative diseases (diseases involving the lymph nodes which could eventually show up as leukemia or a tumor). The reasons for the body's inability to control the EBV infection are still unknown and no effective treatment is currently available.

This research study uses Epstein-Barr virus (EBV) specific cytotoxic T lymphocytes (CTLs). We want to see if we can grow special white blood cells, called T cells, that have been trained to kill EBV infected cells in the laboratory and see if these cells may help control the EBV infection when given back to the patient.

The purpose of this study is to find the largest safe dose of EBV specific CTLs, to learn what the side effects are, and to see whether this therapy might help the body fight off the SCAEBV infection.

Condition or disease Intervention/treatment Phase
Epstein-Barr Virus Infections Biological: Intravenous injection of EBV specific CTLS Phase 1

Detailed Description:

Ten to sixty ml (2-12 teaspoons) of blood will be collected from the patient which we use to grow the T cells. These T cells are then stimulated with EBV infected cells (which have been treated with radiation so that they cannot grow). This stimulation trains the T cells to kill EBV infected cells. We then test the T cells to make sure that they kill the EBV infected cells.

Therapy can take place in one of the specifically designated outpatient clinics so hospital admission is not required. First, patients will be given doses of Tylenol (for any aches/pains) and Benadryl (for any minor allergic reactions such as itching/rash). Next, the T cells will be injected into a vein over a 10 minute period. Patients will be closely watched for any side effects.

If a patient shows some response to the treatment they may receive up to three additional T cell injections at three month intervals. Patients will need to be seen every other week in the clinic for six weeks after the injection. Following that, patients will either be seen in the clinic or contacted by one of the research staff working on this study, once a month for one year.

To learn more about the way the T cells are working and how long they last in the body, an extra 40 mls(8 teaspoonfuls) of blood will be taken at these visits. Additionally, 3 mls (1/2 teaspoonful) of blood will be taken prior to the infusion and monthly thereafter to conduct a CBC (a test to look at the components of the blood).

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 13 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Autologous EBV Specific CTLs for Therapy of Severe Chronic EBV Infection
Study Start Date : January 2000
Actual Primary Completion Date : December 2008
Actual Study Completion Date : December 2008

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Viral Infections

Arm Intervention/treatment
Experimental: Treatment
Treatment dose levels 1, 2 and 3
Biological: Intravenous injection of EBV specific CTLS

The dose levels for this study are as follows:

Level Dose

  1. 2 x 107 CTLs/m2
  2. 5 x 107 CTLs/m2
  3. 1 x 108 CTLs/m2

If patients have a clinical response to the first infusion defined by an improvement in the fatigue score or resolution of clinical abnormalities such as lymphadenopathy or an improvement in laboratory parameters such as a decrease in VCA titer or reduction in free EBV DNA they will be eligible to receive up to 3 additional injections of CTLs at the original dose at 3 monthly intervals.

Primary Outcome Measures :
  1. to determine the safety of intravenous injections of autologous EBV specific cytotoxic T cell lines in individuals with severe chronic EBV infection [ Time Frame: 1 yr ]

Secondary Outcome Measures :
  1. determine antiviral and immunological efficacy of intravenous injections of CTLs in these patients [ Time Frame: 1 yr ]
  2. assess the clinical effects of these injections [ Time Frame: 1 yr ]

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients must have severe chronic EBV infection as manifested by 6 months of symptoms Either elevated peripheral blood EBV DNA (>4000 genomes per ug PBMC DNA) or free EBV DNA in serum or CSF or VCA antibody titer > 1/640
  • Seronegative for HIV
  • Not on investigational agents in the last 4 weeks
  • Signed informed consent obtained from patient/guardian
  • CTLs available
  • Performance status; Karnofsky >60
  • Creatinine < 3X normal
  • Bilirubin < 5X normal
  • Normal electrolytes, calcium, phosphorus, nutritional status
  • Females with child-bearing potential must utilize effective birth control.

Exclusion Criteria:

  • Patients with a severe intercurrent infection
  • Patients that recently received high dose steroids within the last week or other immunosuppressive drugs within a week (or longer as indicated by the half life of the agent)
  • Patients with life expectancy of less than 6 weeks
  • Pregnant or lactating females

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 ClinicalTrials.gov identifier (NCT number): NCT00058591

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United States, Texas
Texas Children's Hospital
Houston, Texas, United States, 77030
The Methodist Hospital
Houston, Texas, United States, 77030
Sponsors and Collaborators
Baylor College of Medicine
The Methodist Hospital Research Institute
Center for Cell and Gene Therapy, Baylor College of Medicine
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Principal Investigator: Helen E Heslop, MD Center for Cell and Gene Therapy, Baylor College of Medicine
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Responsible Party: Helen Heslop, Director/Professor, Center for Gene Therapy-Administration, Baylor College of Medicine
ClinicalTrials.gov Identifier: NCT00058591    
Obsolete Identifiers: NCT00608608
Other Study ID Numbers: H8216
First Posted: April 9, 2003    Key Record Dates
Last Update Posted: January 18, 2020
Last Verified: January 2020
Additional relevant MeSH terms:
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Communicable Diseases
Epstein-Barr Virus Infections
Disease Attributes
Pathologic Processes
Virus Diseases
Herpesviridae Infections
DNA Virus Infections
Tumor Virus Infections