Antigen-specific Cytotoxic T Cells in the Treatment of Opportunistic Infections
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ClinicalTrials.gov Identifier: NCT03159364 |
Recruitment Status : Unknown
Verified September 2019 by Lung-Ji Chang, Shenzhen Geno-Immune Medical Institute.
Recruitment status was: Recruiting
First Posted : May 18, 2017
Last Update Posted : September 19, 2019
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Tracking Information | |||||
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First Submitted Date ICMJE | May 16, 2017 | ||||
First Posted Date ICMJE | May 18, 2017 | ||||
Last Update Posted Date | September 19, 2019 | ||||
Actual Study Start Date ICMJE | July 15, 2017 | ||||
Estimated Primary Completion Date | July 31, 2020 (Final data collection date for primary outcome measure) | ||||
Current Primary Outcome Measures ICMJE |
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Original Primary Outcome Measures ICMJE |
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Change History | |||||
Current Secondary Outcome Measures ICMJE |
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Original Secondary Outcome Measures ICMJE |
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Current Other Pre-specified Outcome Measures | Not Provided | ||||
Original Other Pre-specified Outcome Measures | Not Provided | ||||
Descriptive Information | |||||
Brief Title ICMJE | Antigen-specific Cytotoxic T Cells in the Treatment of Opportunistic Infections | ||||
Official Title ICMJE | Phase I/II Multicenter Trial of Antigen-specific Cytotoxic T Cells in the Treatment of Opportunistic Infections | ||||
Brief Summary | Epstein Barr Virus (EBV) or Cytomegalovirus (CMV) infection results in significant morbidity and mortality in hematopoietic stem cell transplantation (HSCT) patients. HSCT patients often face opportunistic infections due to the immunosuppressive state during transplantation. Antimicrobial drugs are usually used for prophylactic purposes and for treatment after early detectable infections. Unfortunately, some patients develop resistance to such drug treatment. In addition to HSCT patient, immune compromised patient may also be victim to opportunistic infections. Many infections can be effectively managed by functional immune recovery. In this study, the safety and efficacy of microbial-specific cytotoxic T lymphocytes (CTLs) will be investigated. | ||||
Detailed Description | Background: Opportunistic infections are major causes of transplant-related morbidity and mortality in immunosuppressed patients, especially in the early post-transplant period. CMV, EBV, adenovirus (AdV), BK virus (BKV) and other viruses or non-viral pathogens may lead to life-threatening infections after transplantation. Adoptive immunotherapy with cytotoxic T lymphocytes (CTLs) reactive with specific microbial antigens has proven to be effective without stimulating acute graft-versus-host disease (GVHD) owing to the significantly reduced nonspecific alloreactivity. This study aims to evaluate the safety and efficacy of treating opportunistic infections with microbial-specific CTLs in immune compromised patients. Objective: Primary study objectives: Infusion of autologous or allogenic pathogen-specific CTL to patients by I.V., to evaluate the safety. Secondary study objectives: To evaluate the anti-microbial efficacy of IV-infused autologous or allogenic pathogen-specific CTLs. Design: Peripheral blood mononuclear cells (PBMC) will be obtained through apheresis. T cells from PBMC will be activated and enriched by dendritic cells with pathogen specific antigens. Cell preparation time is approximately 12-17 days. Subject will receive infusions of 1x105~1x106 cells/kg body weight of CTLs via IV infusion. Patients are followed weekly for one month after the infusion, monthly for 3 months, and then every 3 months until the trial ends. |
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Study Type ICMJE | Interventional | ||||
Study Phase ICMJE | Phase 1 Phase 2 |
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Study Design ICMJE | Allocation: N/A Intervention Model: Single Group Assignment Masking: None (Open Label) Primary Purpose: Treatment |
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Condition ICMJE |
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Intervention ICMJE | Biological: pathogen-specific CTLs
Patients will receive approximately 1x10^5~1x10^6 CTLs/kg as a single infusion via IV injection and may receive additional infusions.
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Study Arms ICMJE | Experimental: Infusion of pathogen-specific CTLs
Repetitive CTL infusions to treat microbial infections
Intervention: Biological: pathogen-specific CTLs
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Publications * | Not Provided | ||||
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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Recruitment Information | |||||
Recruitment Status ICMJE | Unknown status | ||||
Estimated Enrollment ICMJE |
100 | ||||
Original Estimated Enrollment ICMJE | Same as current | ||||
Estimated Study Completion Date ICMJE | December 31, 2021 | ||||
Estimated Primary Completion Date | July 31, 2020 (Final data collection date for primary outcome measure) | ||||
Eligibility Criteria ICMJE | Inclusion Criteria: Subjects with or without hematopoietic stem cell transplantation / organ transplant recipients need to meet the following conditions:
Proper renal and hepatic functions (ULN denotes "upper limit of normal range"):
If CTL is not from the patient's own, then the provider of CTLs needs to meet the following criteria:
Exclusion Criteria:
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Sex/Gender ICMJE |
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Ages ICMJE | 6 Months to 80 Years (Child, Adult, Older Adult) | ||||
Accepts Healthy Volunteers ICMJE | No | ||||
Contacts ICMJE | Contact information is only displayed when the study is recruiting subjects | ||||
Listed Location Countries ICMJE | China | ||||
Removed Location Countries | |||||
Administrative Information | |||||
NCT Number ICMJE | NCT03159364 | ||||
Other Study ID Numbers ICMJE | GIMI-IRB-17009 | ||||
Has Data Monitoring Committee | No | ||||
U.S. FDA-regulated Product |
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IPD Sharing Statement ICMJE |
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Current Responsible Party | Lung-Ji Chang, Shenzhen Geno-Immune Medical Institute | ||||
Original Responsible Party | Same as current | ||||
Current Study Sponsor ICMJE | Shenzhen Geno-Immune Medical Institute | ||||
Original Study Sponsor ICMJE | Same as current | ||||
Collaborators ICMJE | Not Provided | ||||
Investigators ICMJE |
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PRS Account | Shenzhen Geno-Immune Medical Institute | ||||
Verification Date | September 2019 | ||||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |