Kite Submits Supplemental Biologics License Application to U.S. Food and Drug Administration for Tecartus in Adult Patients With Relapsed or Refractory Acute Lymphoblastic Leukemia

-- If Approved, Tecartus Would Be the First and Only CAR T-Cell Therapy Approved for Adult Patients (18 Years and Older) with Relapsed or Refractory B-cell Precursor Acute Lymphoblastic Leukemia --

SANTA MONICA, CA, USA I April 01, 2021 I Kite, a Gilead Company (Nasdaq: GILD), today announced that it has submitted a supplemental Biologics License Application (sBLA) to the U.S. Food and Drug Administration (FDA) for Tecartus® (brexucabtagene autoleucel) for the treatment of adult patients with relapsed or refractory B-cell precursor acute lymphoblastic leukemia (ALL). The sBLA is supported by data from the Phase 1/2 ZUMA-3 trial, which are also being submitted for presentation at an upcoming scientific congress.

In 2017, Tecartus was granted Breakthrough Therapy Designation by the FDA for relapsed or refractory adult B-cell precursor ALL. If approved, Tecartus would become the first and only chimeric antigen receptor (CAR) T-cell therapy approved for adults (≥18 years old) with relapsed or refractory ALL.

“Tecartus has already begun to transform the outlook for many patients with relapsed or refractory mantle cell lymphoma, and we’re encouraged by the data we’ve seen in adult patients with relapsed or refractory ALL, as survival rates among these patients remain poor with the most commonly used therapeutic agents,” said Frank Neumann, MD, PhD, Kite’s Global Head of Clinical Development. “We are working closely with the FDA to progress our application and to bring the benefits of CAR T to patients with this particularly intractable leukemia.”

In July 2020, Tecartus became the first and only CAR T-cell therapy to receive accelerated approval from the FDA for the treatment of relapsed or refractory mantle cell lymphoma, based on overall response rate and durability of response. The Tecartus U.S. Prescribing Information has a Boxed Warning in its product label regarding the risks of cytokine release syndrome (CRS) and neurologic toxicities, and Tecartus is approved with a risk evaluation and mitigation strategy (REMS) due to these risks; see below for Indication and Important Safety Information.

Tecartus has not been approved by any regulatory agency for the treatment of adult patients with relapsed or refractory ALL. Its safety and efficacy have not been established in this indication.

About ALL

ALL is an aggressive type of blood cancer which can also involve the lymph nodes, spleen, liver, central nervous system and other organs. Approximately 1,200 adults are treated annually for relapsed or refractory ALL. Survival rates remain very poor in adult patients with relapsed or refractory ALL, with a median overall survival of approximately eight months with the most commonly used therapeutic agents.

B-cell precursor ALL is the most common form of ALL, accounting for approximately 75 percent of cases. Treatment for this form of ALL is typically associated with inferior outcomes compared with other types of ALL.

About ZUMA-3

ZUMA-3 is an ongoing international multicenter, registrational Phase 1/2 study in adult patients (≥18 years old) with ALL whose disease is refractory to or has relapsed following standard systemic therapy or hematopoietic stem cell transplantation. The objectives of the study are to evaluate the safety and efficacy of Tecartus in this patient population.

About Tecartus

Tecartus is an autologous, anti-CD19 CAR T cell therapy. Tecartus uses the XLP™ manufacturing process that includes T cell enrichment, a necessary step in certain B-cell malignancies in which circulating lymphoblasts are a common feature. In addition to adult ALL, Tecartus is also currently being evaluated in a Phase 1/2 trial in chronic lymphocytic leukemia (CLL) and pediatric ALL. The use of Tecartus in adult ALL, pediatric ALL and CLL is investigational, and its safety and efficacy have not been established in these cancer types.

Tecartus Indication

Tecartus is a CD19-directed genetically modified autologous T cell immunotherapy indicated for the treatment of adult patients with relapsed or refractory mantle cell lymphoma (MCL).

This indication is approved under accelerated approval based on overall response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial.

About Kite

Kite, a Gilead Company, is a biopharmaceutical company based in Santa Monica, California, with commercial manufacturing operations in North America and Europe. Kite is engaged in the development of innovative cancer immunotherapies. The company is focused on chimeric antigen receptor and T cell receptor engineered cell therapies. For more information on Kite, please visit www.kitepharma.com.

About Gilead Sciences

Gilead Sciences, Inc. is a biopharmaceutical company that has pursued and achieved breakthroughs in medicine for more than three decades, with the goal of creating a healthier world for all people. The company is committed to advancing innovative medicines to prevent and treat life-threatening diseases, including HIV, viral hepatitis and cancer. Gilead operates in more than 35 countries worldwide, with headquarters in Foster City, California. For more information on Gilead Sciences, please visit the company’s website at www.gilead.com.

SOURCE: Kite Pharma

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