Antigen Specific Adoptive T Cell Therapy for Adenovirus Infection After Hematopoietic Stem Cell Transplantation

  • STATUS
    Recruiting
  • participants needed
    20
  • sponsor
    Mari Dallas
Updated on 9 December 2022
cidofovir
foscarnet

Summary

The purpose of this study is to determine if it is possible to treat an infection with a cell-based immunotherapy (therapy that uses the patient's own immune system to treat the infection). This treatment is called adoptive T cell therapy. Another purpose is to learn about the side effects and toxicities of adoptive T cell therapy.

Adoptive T cell therapy is an investigational (experimental) therapy that works by using the blood of a donor that has immunity against the virus. The donor cells are collected and then the cells, called T cells, that are capable of defending against the virus are selected out. These selected T cells are then infused back into the patient, to try to give the immune system the ability to fight the infection. Adoptive T cell therapy is experimental because it is not approved by the Food and Drug Administration (FDA).

Description

Brief Background/Rationale: This study seeks to determine the feasibility of using antigen specific T cells isolated with the CliniMACS® Cytokine Capture System (CCS) for the treatment of adenovirus infections occurring after allogeneic Hematopoietic Stem Cell Transplantation (HSCT).

Primary Objective: To determine the feasibility of the treatment of opportunistic adenovirus infection after HSCT with adenovirus-specific, antigen-selected T cells, using the CliniMACS® Prodigy System.

Exploratory Objective(s)

  • To describe the safety profile of the infusion of virus - specific, antigen selected T cells.
  • To describe the toxicities related to infusion of virus - specific, antigen selected T cells.
  • To describe the rate of eradication of opportunistic adenovirus infection after treatment with virus-specific, antigen-selected T cells using the CliniMACS® Prodigy System.

Study Design:

This feasibility study will include a single treatment cohort including subjects who have failed to respond, are intolerant or have contraindications to antiviral agents used for treatment of Human Adenovirus (HAdV) (ganciclovir, valganciclovir, foscarnet and cidofovir).

Patients will be enrolled in a staggered pattern to ensure safety.

  • Patient 1 will be enrolled and observed for 30 days after infusion of virus specific T cells before enrollment of a subsequent patient.
  • Patient 2 will be enrolled ≥ 30 days after treatment of patient 1 and will be observed for 30 days before enrollment of a subsequent patient.
  • Subsequent patients will be enrolled in 6 cohorts of 3 subjects each. A safety period between cohorts of 30 days (between treatment of the last subject of one cohort and the first subject of the subsequent cohort).

Study Design: Staggered enrollment of patients with an observation period of 30 days after infusion. Safety monitoring points planned after patient No. 5 and No. 11

Details
Condition Allogeneic Hematopoietic Stem Cell Transplantation
Treatment IFN-gamma-secreting HAdV antigen specific T cells
Clinical Study IdentifierNCT03378102
SponsorMari Dallas
Last Modified on9 December 2022

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