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Antigen-specific T Cell Therapy for AML or MDS Patients With Relapsed Disease After Allo-HCT

NCT04284228 · Status: ACTIVE_NOT_RECRUITING · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 22

Last updated 2024-01-16

No results posted yet for this study

Summary

This Research study is being done to characterize the safety, tolerability, and preliminary antitumor activity of the NEXI-001 T cell product (a new experimental therapy), which contains populations of CD8+ T cells targeting multiple leukemia associated antigen peptides in patients with Acute Myeloid Leukemia (AML) or Myelodysplastic Syndrome (MDS) who have relapsed disease after an allogeneic hematopoietic cell transplant (HCT).

The study will enroll AML or MDS patients who have either Minimal Residual Disease (MRD) or relapsed disease after a human leukocyte antigen (HLA)-matched allogeneic HCT. Patients who have had an HLA-mismatched or haploidentical allogeneic HCT will not be eligible to participate in this study. Eligible patients for this study must also have ≥ 50% T-cell chimerism from the original donor at the time study entry.

The enrolled patients will undergo bridging therapy for the purposes of disease control while the NEXI-001 T cell product is being manufactured. Choice of bridging therapy administered will be per the Investigator's discretion, but is limited to acceptable agents as specified in the protocol. Bridging therapy will be administered prior to lymphodepleting (LD) therapy, with the last dose of the bridging therapy administered ≥ 14 days prior to initiation of LD therapy. Within 72 hours after completing LD therapy, patients will receive a single IV infusion of the NEXI-001 T cell product.

Conditions

  • Acute Myeloid Leukemia (AML)
  • Myelodysplastic Syndrome (MDS)

Interventions

BIOLOGICAL

Infusion of NEXI-001 T Cells

Procedure: A single IV infusion of NEXI-001 T Cells at Day 1 after Lymphodepletion(LD) Therapy. At dose Level 1: 1.0 x 108 total viable T cells At dose Level 2: 2.0 x 108 total viable T cells Procedure: Lymphodepletion: IV administration of fludarabine 30 mg/2 and cyclophosphamide 300 mg/m2 for 3 days. lymphodepletion (LD) Therapy: Subjects will received bridging therapy agents during lymphodepletion for 3 consecutive days prior to receiving the NEXI-001 product Drug: Fludarabine Fludarabine infusion Other Name: Fludarabine monophosphate Drug: Cyclophosphamide Cyclophosphamide infusion Other Name: Cytoxan

Sponsors & Collaborators

  • NexImmune Inc.

    lead INDUSTRY

Principal Investigators

  • Juan Varela, MD, PhD · Principal Investigator

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-02-20
Primary Completion
2024-10-31
Completion
2025-03-31
FDA Drug
Yes

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04284228 on ClinicalTrials.gov