Juli 25, 2021: Kite, a Gilead Company (Nasdaq: GILD), hari ini mengumumkan bahwa FDA telah memberikan TecartusTM (brexucabtagene autoleucel, sebelumnya KTE-X19), yang pertama dan satu-satunya yang disetujui reseptor antigen chimeric, terapi sel T CAR for the treatment of adult patients with relapsed or refractory mantle cell lymphoma, accelerated approval (MCL). The FDA granted priority review and breakthrough therapy designation to this one-time therapy, which was based on the results of ZUMA-2, a single-arm, open-label study in which 87 percent of patients responded to a single infusion of Tecartus, with 62 percent achieving a complete response (CR). 18% of patients who were evaluated for safety had sindrom pelepasan sitokin (CRS) of Grade 3 or higher, and 37% had neurologic toxicities of Grade 3 or higher.
“Despite promising advances, there are still significant gaps in treatment for MCL patients who progress after initial therapy,” said Michael Wang, MD, ZUMA-2 Lead Investigator and Professor, Department of Lymphoma and Myeloma, Division of Cancer Medicine, University of Texas MD Anderson Cancer Center. “Many patients have high-risk disease, which means they are more likely to progress despite treatment. “Tecartus is the first cell therapy available to people with relapsed or refractory MCL. It has an impressive response rate of nearly 90% and early clinical evidence suggests that remissions may last through later lines of therapy. This makes it an important choice for these patients.”
“Kami bangga meluncurkan terapi sel kedua kami karena Kite berkomitmen untuk membawa janji Terapi CART to patients with haematological cancers,” said Christi Shaw, Kite’s Chief Executive Officer. “I would like to express my gratitude to the patient study participants, caregivers, clinical researchers, regulators, and dedicated Kite colleagues who contributed to this approval, and we look forward to working with the limfoma community to bring this potentially transformative therapy to patients with relapsed or refractory MCL.”
Tecartus’ product label includes a boxed warning about the risks of CRS and neurologic toxicities. The FDA has approved a Risk Evaluation and Mitigation Strategy (REMS) for Tecartus, which has been combined with the REMS for Yescarta® (axicabtagene ciloleucel). The REMS programme will inform and educate healthcare professionals about the risks associated with Tecartus therapy, and training and certification in the REMS programme will be a requirement for centres offering Tecartus therapy to receive final authorization.
MCL adalah jenis yang langka dari limfoma non-Hodgkin (NHL) yang berkembang dari sel-sel di "zona mantel" kelenjar getah bening dan terutama menyerang pria di atas usia 60 tahun. Setelah kambuh, MCL sangat agresif, dan banyak pasien mengalami kemajuan setelah perawatan.
The Lymphoma Research Foundation’s Chief Executive Officer, Meghan Gutierrez, said, “This approval marks the first CAR T cell therapy approved for mantle cell lymphoma patients and represents a new frontier in the treatment of this disease.” “Researchers have made significant progress in our understanding of this disease over the last decade, and we’ve seen an increase in patient clinical trials, which we hope will continue to improve treatment strategies and options for people with mantle cell lymphoma. Today’s news builds on that progress and gives mantle cell patients and their families reason to be hopeful.”
Kite’s commercial manufacturing facility in El Segundo, California, will produce Tecartus. Kite achieved a 96 percent manufacturing success rate in the ZUMA-2 trial, with a median manufacturing turnaround time of 15 days from leukapheresis to product delivery. Patients with advanced disease, who are severely ill and at risk of rapid progression, require manufacturing speed in particular.
Kite Konnect®, platform teknologi terintegrasi yang menyediakan informasi dan bantuan selama proses terapi untuk komersial Kite Terapi CAR T, including courier tracking for shipments and manufacturing status updates, is available to patients whose healthcare professionals have prescribed Tecartus therapy. Kite Konnect is a support system for patients who are receiving Yescarta or Tecartus, as well as information for the healthcare teams who are supporting them.
KTE-X19 saat ini sedang dievaluasi di Uni Eropa, dan European Medicines Agency telah memberikannya sebutan Priority Medicines (PRIME) untuk MCL yang kambuh atau refrakter.
Hasil uji coba Tecartus
The approval of Tecartus is based on results from the ongoing ZUMA-2 pivotal trial, which is a single arm, open-label study. 74 adult patients with relapsed or refractory MCL who had previously received anthracycline- or bendamustine-containing chemotherapy, anti-CD20 antibody treatment, or a Bruton tyrosine kinase inhibitor were enrolled in the trial (ibrutinib or acalabrutinib). The primary endpoint was the objective response rate (ORR), which was defined as the combined rate of CR and partial responses as judged by an Independent Radiologic Review Committee according to the Lugano Classification (2014). (IRRC).
Dalam penelitian tersebut, 87 persen pasien (n=60 dapat dievaluasi untuk analisis efikasi) bereaksi terhadap infus Tecartus tunggal, dengan 62 persen mencapai respons lengkap. Tindak lanjut setidaknya enam bulan setelah respon penyakit objektif pertama untuk semua pasien. Median waktu reaksi belum ditentukan.
In the experiment, 18% of patients (n=82 evaluable for safety) had Grade 3 or higher CRS, while 37% of patients had neurologic problems. Anemia, neutropenia, thrombocytopenia, hypotension, hypophosphatemia, encephalopathy, leukopenia, hypoxia, pyrexia, hyponatremia, hypertension, infection-pathogen unclear, pneumonia, hypocalcemia, and lymphopenia were the most prevalent Grade 3 or higher adverse effects (10%). With a Risk Evaluation and Mitigation Strategy, the FDA approved Tecartus (REMS). The Yescarta (axicabtagene ciloleucel) and Tecartus (brexucabtagene autoleucel) REMS Program has been integrated with the Tecartus REMS and is now known as the “Yescarta (axicabtagene ciloleucel) and Tecartus (brexucabtagene autoleucel) REMS Program”
Tentang Tecartus
Tecartus is an autologous, anti-CD19 CAR T cell therapy. Tecartus uses the XLP™ proses manufaktur yang mencakup pengayaan sel T, langkah penting dalam keganasan sel B tertentu di mana limfoblas yang bersirkulasi adalah fitur umum. Selain MCL, Tecartus juga sedang dalam uji coba Fase 1/2 pada leukemia limfoblastik akut (ALL) dan leukemia limfositik kronis (CLL). The use of Tecartus in ALL and CLL is investigational, and its safety and efficacy have not been established in these cancer types.
Indikasi Tecartus
Tecartus adalah imunoterapi sel T autologus yang dimodifikasi secara genetik diarahkan CD19 yang diindikasikan untuk pengobatan pasien dewasa dengan limfoma sel mantel (MCL) yang kambuh atau refrakter.
Indikasi ini disetujui berdasarkan persetujuan yang dipercepat berdasarkan tingkat respons keseluruhan dan daya tahan respons. Persetujuan lanjutan untuk indikasi ini mungkin bergantung pada verifikasi dan deskripsi manfaat klinis dalam uji coba konfirmasi.
