Celyad obtains FDA approval to initiate the NKR-2 CAR T cells THINK trial in the USA

  • IND (Investigational New Drug) approval triggers the initiation of the THINK trial in the U.S.
  • Rosewell Park (NY) and University of Pittsburgh Medical Center – UPMC (PA) approved and ready to enroll patients.
  • No toxic event in the other patients enrolled in the study so far.

MONT-SAINT-GUIBERT, Belgium I March 08, 2017 I Celyad (Euronext Brussels:CYAD) (CYAD.PA) (CYAD), a leader in the discovery and development of engineered cell-based therapies, today announced that the U.S. FDA authorized the initiation of the THINK trial in the U.S. THINK evaluates NKR-2 CAR-T cells in seven indications, five solid cancers and two hematological malignancies.

The FDA approval for the THINK trial is an important milestone allowing us to initiate the THINK clinical trial in the USA. We are now looking forward to enrolling the first patients in both solid and hematological arms of the study in the U.S.”, said Christian Homsy, CEO of Celyad.

I would like to thank the team as well as our partners for the incredible work achieved so far to make the THINK trial progress at such a good pace. In the coming months, all our efforts will be dedicated to the recruitment and follow-up of new patients for each dose-level cohort, but also to the opening of new clinical sites across EU and the U.S.”, remarked Jean-Pierre Latere, Chief Operating Officer at Celyad.

About the THINK trial

THINK (THerapeutic Immunotherapy with NKR-2) is a multinational (EU/US) open-label Phase Ib study to assess the safety and clinical activity of multiple administrations of autologous CAR-T NKR-2 cells in seven refractory cancers, including five solid tumors (colorectal, ovarian, bladder, triple-negative breast and pancreatic cancers) and two hematological tumors (acute myeloid leukemia and multiple myeloma). The trial will test three dose levels adjusted to body weight: up to 3x108, 1x109 and 3x109 CAR-T NKR-2 cells. At each dose, the patients will receive three successive administrations, two weeks apart, of CAR-T NKR-2 cells. The dose escalation part of the study will enroll up to 24 patients while the extension phase would enroll 86 additional patients.

About Celyad

https://www.globenewswire.com/Tracker?data=GhYzJ6VhwW0IzlO5_Bw38Li5rYkqhM-tI8JpQu5SVtFpcF3iio-Py9BcJe1Xs09r4EAIUEMyIUJ6xYDMDlGWeQ==" rel="nofollow noopener" target="_blank">www.celyad.com" data-reactid="15">Celyad is a clinical-stage biopharmaceutical company focused on the development of specialized cell based therapies. The Company utilizes its expertise in cell engineering to target cancer. Celyad’s Natural Killer Receptor based T-Cell (NKR-T) platform has the potential to treat a broad range of solid and hematologic tumors. Its lead oncology candidate, the CAR-T NKR-2, has been evaluated in a single dose escalation Phase I clinical trial to assess the safety and feasibility of CAR-T NKR-2 cells in patients suffering from AML or MM. This Phase I study was successfully completed in September 2016. Celyad was founded in 2007 and is based in Mont-Saint-Guibert, Belgium, and Boston, Massachusetts. Celyad’s ordinary shares are listed on the Euronext Brussels and Euronext Paris exchanges, and its American Depository Shares are listed on NASDAQ Global Market, all under the ticker symbol CYAD. For more information about Celyad, please visit: www.celyad.com

About Celyad’s NKR-T Cell Platform

Celyad is developing a unique CAR-T cell platform, using Natural Killer Receptor (NKR) transduced on to T lymphocytes. The platform targets a wide range of solid and hematological tumors. Unlike traditional CAR-T cell therapy, which target only one tumor antigen, Natural Killer (NK) cell receptors enable a single receptor to recognize multiple tumor antigens.

Celyad’s lead candidate, CAR-T NKR-2, is a CAR-T-Cell engineered to express the human NK receptor, NKG2D, which is an activating receptor.  CAR-T NKR-2 triggers cell killing through the binding of NKG2D to any of eight naturally occurring ligands that are known to be overexpressed on more than 80% of tumors.

Preclinical results indicate that CAR-T NKR-2 has multiple mechanisms of actions and goes beyond direct cancer cell killing.  It inhibits the mechanisms that enable tumors to evade the immune system, activates and recruit anti-tumor immune cells and disrupts the blood supply to the tumor. These mechanisms promote the induction of adaptive immunity, meaning the development of a long-term immune memory against specific tumor antigens of the targeted tumor.

In contrast to traditional CAR-T therapeutic approaches, and based on strong preclinical evidence, Celyad’s current CAR-T NKR-2 program does not use patient lymphodepleting pre-conditioning, thereby avoiding the toxicities associated with chemotherapy and allowing the immune system to remain intact.

Celyad is developing both autologous and allogeneic CAR-T NKR-2 approaches. For autologous CAR-T NKR-2, Celyad collects the patient’s own T-Cells and engineers them to express NKG2D in order to target cancer cells effectively. Celyad’s allogeneic platform engineers the T-Cells of healthy donors, to also express TCR Inhibitory Molecules (TIMs), to avoid having the donor cells rejected by the patient’s normal tissues (also called Graft vs. Host Disease).

The preclinical research underlying this technology was originally conducted at Dartmouth College by Dr. Charles Sentman and has been published extensively in peer-reviewed publications.

SOURCE: Celyad

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