The U.S. FDA thinks using minimal residual disease as an endpoint for accelerated approval in new therapies to treat multiple myeloma (MM) might just be an idea whose time has come. The FDA now wants to know what its Oncologic Drugs Advisory Committee thinks about it, so the agency has convened a meeting of the committee for a deep dive into the subject on April 12.
DXC-006 (Hangzhou DAC Biotechnology Co. Ltd.) is an antibody-drug conjugate (ADC) that targets CD56, a molecule involved in cell-cell adhesion and cell-matrix adhesion that is overexpressed in neuroblastoma, small-cell lung cancer and multiple myeloma, but less frequently expressed in normal tissues. DXC-006 consists of an anti-CD56 antibody (DXA-006) linked to the topoisomerase 1 (TOP1) inhibitor CPT-116 through a linker.
Following the U.S. FDA’s expansion of competing BCMA-targeting CAR T therapy Abecma (idecabtagene vicleucel) to include third-line and later treatment in multiple myeloma (MM) patients, the agency cleared Carvykti (ciltacabtagene autoleucel) from Legend Biotech Corp. and Johnson & Johnson’s Janssen unit for use in MM patients as early as second-line treatment. The label, which RBC Capital Markets analyst Leonid Timashev called a “best-case scenario,” includes no notable updates to the black box warning and should help accelerate and expand Carvykti’s update in the U.S., with 2024 revenues expected to top $950 million.
Mixed opinions from the U.S. FDA’s Oncology Drugs Advisory Committee last month didn’t stop the agency from green-lighting an expanded label for Abecma (idecabtagene vicleucel) to include adults with relapsed or refractory multiple myeloma (r/r MM) after two or more prior lines of therapy including an immunomodulatory agent, a proteasome inhibitor and an anti-CD38 monoclonal antibody.
About 90% of patients with multiple myeloma (MM) develop severe bone disease, known as myeloma bone disease (MBD). This occurs due to the ability of MM cells to disrupt bone homeostasis, leading to excessive bone resorption. Some current treatments are effective for treating MBD, but they are associated with undesired adverse events.
Previous research has shown that adenosine impairs antitumor immunity, and high levels of adenosine and CD73 have been associated with poor prognosis in cancer.
The U.S. FDA’s Oncology Drugs Advisory Committee, in two separate sessions, took up the matters of Carvykti (ciltacabtagene autoleucel) from Johnson & Johnson and the Bristol Myers Squibb Co. product Abecma (idecabtagene vicleucel) – specifically, whether the benefits of each CAR T therapy outweigh the risks in relapsed or refractory multiple myeloma (MM).
There’s no denying that Johnson & Johnson’s Carvykti (ciltacabtagene autoleucel) and Bristol Myers Squibb Co.’s Abecma (idecabtagene vicleucel) show clinical benefit as they seek to move up in the line of treatment for relapsed or refractory multiple myeloma. But the question that will be put to the U.S. FDA’s Oncology Drugs Advisory Committee March 15 is whether the benefit outweighs a risk of early deaths seen with both CAR T therapies.
Simcere Zaiming, a subsidiary of Simcere Pharmaceutical Group Ltd., has received approval from the FDA and China’s National Medical Products Administration (NMPA) to conduct clinical trials with SIM-0500 in patients with relapsed or refractory multiple myeloma.
China’s NMPA has approved Carsgen Therapeutics Holdings Ltd.’s NDA for its B-cell maturation antigen (BCMA)-targeted CAR T-cell therapy, zevorcabtagene autoleucel (CT-053, zevor-cel), for treating adults with relapsed or refractory (r/r) multiple myeloma (MM) who have progressed after at least three prior lines of therapy, including a proteasome inhibitor and immunomodulatory agent.
