EHA2024 | Bioheng Therapeutics Announces Latest Clinical Data of CD7-targeted Universal CAR-T Cell Product RD13-02 for Relapsed/Refractory T-cell Acute Lymphoblastic Leukemia/Lymphoma (R/R T-ALL/LBL) Patients, with an Impressive Response Rate of Up to 92%

Reprint to:


On May 16, 2024,  Bioheng Therapeutics (referred to as "Bioheng"), an innovative biopharmaceutical company focusing on the development and commercialization of Universal Chimeric Antigen Receptor T-cell (UCAR-T) products, announced today that it will present the Phase I clinical data of its CD7-targeted Universal CAR-T cell product, RD13-02, for the treatment of relapsed/refractory T-cell acute lymphoblastic leukemia/lymphoma (R/R T-ALL/LBL) patients at the 29th European Hematology Association (EHA 2024) Annual Congress, to be held in Madrid, Spain, from June 13 to 16, 2024, in the form of an academic poster.

 

Abstract Title: Phase I Study of an Anti-CD7 Universal CAR-T Therapy for Patients with Relapsed/Refractory CD7 Positive T-ALL/LBL

Abstract Number: P1471

 

The data presented at this EHA conference pertains to an investigator-initiated Phase I clinical trial of RD13-02 conducted at the First Affiliated Hospital of Zhejiang University School of Medicine. This single-arm, open-label, dose-escalation Phase I study (NCT05716113) evaluated the safety and efficacy of RD13-02 in treating patients with R/R T-ALL/LBL. The study consisted of two stages: dose escalation (using an accelerated titration design) and dose expansion, with a total of 4 dose levels (DL-1: 0.5×108 CAR+T cells; DL1: 2×108 CAR+T cells; DL2: 4×108 CAR+T cells; DL3: 6×108 CAR+T cells). All patients received fludarabine (30 mg/m2/day for 3 days) and cyclophosphamide (500 mg/m2/day for 3 days) conditioning regimen prior to RD13-02 infusion.

 

As of February 21, 2024, a total of 12 eligible patients with R/R T-ALL/LBL have been enrolled (7 ALL, 5 LBL), with a median age of 32.5 years (range, 20 to 52). The median prior lines of therapy were 2 (range, 1 to 4), and 4 patients had prior HSCT before enrollment. The median proportion of BM blasts was 64% (range: 6% to 89%) among all 12 patients, with 6 (3 ALL, 3 LBL) showing extramedullary involvement.

 

Safety:

No dose-limiting toxicity (DLT) event, neurotoxicity and GvHD have been observed at all dose levels. Cytokine release syndrome (CRS) was manageable with majority being mild (G1, n=8; G2, n=2; G3, n=2). Due to the occurrence of Grade 3 CRS in one patient each from DL2 and DL3 groups, investigators set the DL1 as expansion dose with a paramount focus on safety and efficacy.

 

Efficacy:

At the initial 28-day assessment post-infusion, 9 out of 12 patients achieved CR/CRi. While by the 2nd month post-infusion, two more patients reached CR/CRi, with an ORR of 92% (Figure 1). qPCR detected expansion in all patients at the third-party lab, with the exception of Pt11, an HBsAg-positive case, whose expansion was confirmed at the clinical center lab. Time to expansion was between D6 to D15. Peak expansion occurred between D8 to D27. The median duration of persistence was 33 days (15-79).

 

Conclusion:

The anti-CD7 universal CAR-T product RD13-02 is safe and effective for CD7+ R/R T-ALL/LBL. More patients and longer follow-ups are needed for validation.

 

About RD13-02

RD13-02 is a universal CAR-T cell product targeting CD7 derived from healthy donors, and intended for the treatment of relapsed or refractory T-cell acute lymphoblastic leukemia/lymphoma (T-ALL/LBL). It is genetically modified to avoid fratricide, graft-versus-host disease (GvHD), and host-versus-graft rejection (HvG) while enhancing anti-tumor activity. RD13-02 can be prepared in a single batch for multiple people, achieving an "off-the-shelf" capability for patients in need of CAR-T cell therapy.

Related News


Bioheng's CD7 UCAR-T and Allogeneic HSCT Sequential Therapy Study Published in the New England Journal of Medicine

On April 25, 2024, The New England Journal of Medicine published the latest findings by the team of He Huang, M.D., PhD., and Yongxian Hu, M.D., PhD., from the First Affiliated Hospital, Zhejiang University School of Medicine, titled "Sequential CD7 CAR-T-Cell Therapy and Allogeneic HSCT without GVHD Prophylaxis"[1]. The study introduces an innovative treatment strategy that combines CD7 CAR-T with allogeneic hematopoietic stem cell transplantation (allo-HSCT) for the first time.


Bioheng Received CDE IND Approval for CTA101 UCAR-T

On March 17,2022, China National Drug Administration Drug Review Center ( CDE ) approved first Universal Chemeric Antigen Receptor T (UCAR-T) cell drug ( Acceptance No. : CXSL2101509 ) . CTA101 is independently developed by Nanjing Bioheng Biotech Co., Ltd ( hereinafter referred as ' Bioheng), targeting CD19 and CD22, for the indication of adult recurrent or refractory B-cell acute lymphoblastic leukemia ( r / r B-ALL ).


Bioheng‘s Auto CAR-T Product, CTB001, Received Orphan Drug Designation (ODD) from the U.S. FDA

Recently, Bioheng Biotech Co., Ltd ( hereinafter referred to as ' Bioheng) announced that its anti-claudin 18.2 autologous CAR-T cell therapy product CTB001 received Orphan Drug Designation ( ODD ) from the Food and Drug Administration ( FDA ) for the treatment of gastric cancer. Gastric cancer has a high incidence in Asian countries such as China and Japan, and the mortality rate ranks the third in the global mortality rate of malignant tumors, behind lung cancer and colorectal cancer. At present, conventional chemotherapy and surgical resection are mainly applied for the gastric cancer treatment, therefore the treatment drugs and methods are very limited.


Bioheng Received Orphan Drug Designation(ODD) from the U.S. FDA for the Treatment of T-ALL

Nanjing Bioheng Biotech Co., Ltd. Announced UCAR T cell therapy product targeting CD7, code CTD401, received Orphan Drug Designation (ODD) from the U.S. Food and Drug Administration (FDA) for the treatment of T-cell acute lymphoblastic leukemia (T-ALL).


Bioheng Raised $80 Million in Series B Financing to Advance Allogeneic Immuno-Cell Therapies

NANJING, China, March 24, 2021 /PRNewswire/ -- Bioheng Biotech Co., Ltd, a clinical-stage biotechnology company  dedicated on developing novel cellular immunotherapy for cancer, today announced that it had secured $80 million in Series B Financing. The Series B was co-led by GL Ventures, the venture capital unit of Hillhouse Capital, Decheng Capital and Octagon Capital, with the participation of BlueRun Ventures China and Shenzhen Capital Group Company.

Contact Us