Genocury Biotech’s In Vivo CD19 CAR-T Achieves Complete Remission in R/R DLBCL Without Lymphodepletion

01 May 2025 | Thursday | News


Breakthrough trial at Tongji Hospital shows durable, toxicity-free response in aggressive blood cancer, challenging conventional CAR-T protocols and paving the way for accessible, next-gen cell therapies.
Image Source : Public Domain

Image Source : Public Domain

Genocury Biotech today revealed groundbreaking clinical data from its noval in vivo CD19 CAR-T therapy in relapsed/refractory diffuse large B-cell lymphoma (R/R DLBCL), a notoriously aggressive blood cancer. In a investigator-initiated trial (IIT) led by the Hematology Department at Tongji Hospital, a heavily pretreated relapsed/refractory (R/R) patient with advanced DLBCL achieved complete remission (CR) after 1 month of the in vivo CAR-T treatment, with durable response sustained over three months. Notably, the treatment eliminated the need for lymphodepletion, a standard yet toxic preconditioning step in traditional CAR-T protocols.

Clinical Breakthrough: Redefining Safety, Efficacy, and Speed

Key trial findings:

Rapid and Deep Response:

relapsed DLBCL male patient achieved complete hematological remission (CR) within 28 days following a single dose of Genocury's CD19 in vivo CAR-T without lymphodepletion. Flow cytometric analysis revealed significant CAR-T cell expansion kenetics, with sustained therapeutic efficacy confirmed through 90-day follow-up monitoring.

Unprecedented Safety Profile:

Unlike conventional CAR-T, which carries a ~50% risk of cytokine release syndrome (CRS) and neurotoxicity, this novel therapeutic approach demonstrated complete absence of: 

  • Cytokine release syndrome (CRS)
  • Immune effector cell-associated neurotoxicity syndrome (ICANS)
  • Lymphodepletion-related complications - typically associated with increased infection risk- further underscores the therapy's safety profile.

Reimagining CAR-T: In Vivo Engineering Breakthroughs

Genocury's in vivo CAR-T platform overcomes two critical roadblocks in current CAR-T therapy:

  • Eliminates Ex Vivo Manipulation: Traditional CAR-T requires 3-4 week vein-to-vein timeline by harvesting, modifying, and expanding a patient's T cells outside the body, and $400K price tag stem from this time-consuming process. Genocury's proprietary in vivo CAR-T vector delivers CAR payload directly into circulating T cells in vivo, enabling functional CAR-T generation.
  • Lymphodepletion-Free Protocol: Current protocols require the harsh preconditioning chemotherapy for immune reset - a leading cause of hospitalization. Genocury's lymphodepletion-free approach reduces treatment-related complications and logistical burdens, as well as enabling significant CAR-T cell expansion.

Statement from Prof. Jia Wei , M.D., Ph.D.

PI (principal investigator), Tongji Hospital Cancer Center (Wuhan)
 "In this groundbreaking case, we observed the patient treated with Genocury's CD19 in vivo CAR-T achieved complete remission through 90-day follow-up - achieved without any lymphodepletionwhich fundamentally challenges current cellular therapy dogma" said Dr. Jia Wei"This therapy combines the benefits of autologous CAR-T with the accessibility of universal therapies, potentially ending the era of unaffordable cancer treatments. This could democratize access to CAR-T globally, we are very excited to advance this paradigm-shifting approach."

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