Summary

Eligibility
for people ages 18-75 (full criteria)
Location
at UC Irvine
Dates
study started
study ends around

Description

Summary

A Study of the Anti-CD 19 Chimeric Antigen Receptor T Cell Therapy for Patients with Myasthenia Gravis

Official Title

KYSA-6: A Phase 2/3, Open-Label, Randomized, Controlled, Multicenter Study of KYV-101, an Autologous Fully Human Anti-CD19 Chimeric Antigen Receptor T-cell (CD19 CAR T) Therapy, Versus Ongoing Standard-Of-Care Immunosuppressive Therapy in Patients With Generalized Myasthenia Gravis

Details

Myasthenia gravis (MG) is a chronic autoimmune disease that affects the neuromuscular junction and is characterized by muscle weakness. B cells play a role in MG, and the disease is characterized by the presence of autoantibodies such as anti-AChR and anti-MuSK antibodies. CD-19 target chimeric antigen receptor (CAR) T cells harness the ability of cytotoxic T cells to directly and specifically lyse target cells to effectively deplete both normal and autoreactive B cells in the circulation as well as impacted lymphoid and potentially non-lymphoid tissues. KYV-101, a fully human anti-CD19 CAR T-cell therapy, will be investigated in adult subjects with myasthenia gravis (MG).

Keywords

Myasthenia Gravis, Generalized Myasthenia Gravis, KYV-101, autoimmune disease, anti-CD19 CAR-T Therapy, cellular therapy, MG, KYSA-6, KYV101-006, Autoimmune Diseases, Cyclophosphamide, fludarabine

Eligibility

You can join if…

Open to people ages 18-75

  1. Presence of autoantibodies to AChR or MuSK at screening.
  2. Myasthenia Gravis Foundation of America (MGFA) Class II-IV
  3. MG-Activities of Daily Living (MG-ADL) total score of ≥6 at screening and confirmed at pre-dose baseline
  4. QMG total score of ≥11 at screening an confirmed at pre-dose baseline
  5. Failed treatment with 2 or more immunosuppressive/immunomodulatory therapies, or failed at least 1 immunosuppressive therapy and required chronic plasmapheresis, or IVIG (>4 times/year over ≥12 months) to control symptoms
  6. On a stable dose of glucocorticoids and/or other immunotherapies for ≥1 month prior to screening. For patients treated with azathioprine, a stable dose for ≥2 months prior to screening is required
  7. No change in dose of acetylcholinesterase inhibitors for ≥2 weeks prior to screening
  8. No use of intravenous immune globulin (IVIG) or plasmapheresis (PLEX) within 4 weeks of screening or pre-dose baseline (unless this is part of their SOC treatment regimen)
  9. No use of rituximab (or any other anti-CD20 or CD19 monoclonal antibody) within 12 weeks prior to screening
  10. No use of FcRn inhibitors within 4 weeks prior to screening

You CAN'T join if...

  1. Unable to washout or interrupt autoimmune disease therapy prior to apheresis
  2. Co-occurring neurological autoimmune disease (ie, Lambert-Eaton Myasthenic Syndrome) or any disease affecting the neuromuscular junction or muscle causing weakness (eg, myositis, myopathy, motor neuropathy)
  3. History of stroke (with residual sequalae and/or risk for recurrence), seizure (even if well controlled on antiepileptics), neurodegenerative disease, altered mental status (unexplained and/or recent/current), or uncontrolled/severe psychiatric disease
  4. Any serious and/or uncontrolled medical condition that, in the investigator's judgment, would cause unacceptable safety risk, interfere with study procedures or results, or compromise compliance with the protocol, including but not limited to, clinically significant cardiac or pulmonary disease
  5. History of primary immunodeficiency, organ or allogeneic bone marrow transplant, or splenectomy
  6. Active, uncontrolled, viral, bacterial, or systemic fungal infection or recent history of repeated infections
  7. Thymectomy <12 months of screening or planned during the study
  8. Prior treatment with gene therapy product or cellular immunotherapy (eg, CAR T) requiring vector integration and directed at any target
  9. Patients requiring chronic anticoagulation therapy that cannot be discontinued for medical procedures

Locations

  • University of California, Irvine accepting new patients
    Orange 5379513 California 5332921 92868 United States
  • Stanford University Medical Center accepting new patients
    Palo Alto 5380748 California 5332921 94305 United States

Details

Status
accepting new patients
Start Date
Completion Date
(estimated)
Sponsor
Kyverna Therapeutics
ID
NCT06193889
Phase
Phase 2/3 research study
Study Type
Interventional
Participants
Expecting 66 study participants
Last Updated