On May 21, 2023 Immix Biopharma, Inc. ("ImmixBio", "Company", "We" or "Us"), reported updated AL Amyloidosis clinical data from its ongoing Phase 1b/2a NEXICART-1 (NCT04720313) study of its novel, autologous, BCMA-targeted chimeric antigen receptor T (CAR-T) cell therapy NXC-201 for the treatment of patients with relapsed or refractory multiple myeloma and light chain (AL) amyloidosis (Press release, Immix Biopharma, MAY 21, 2023, View Source [SID1234631889]). Additional NXC-201 clinical data was presented on eight DARZALEX (daratumumab) relapsed or refractory AL amyloidosis patients. The new data are being presented during a late-breaking oral presentation at the 26th Annual Meeting of The American Society of Gene and Cell Therapy (ASGCT) (Free ASGCT Whitepaper) in Los Angeles on May 19, 2023.
Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:
Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing
Schedule Your 30 min Free Demo!
"We continue to be very encouraged by NXC-201," said Polina Stepensky, M.D., Director of the Hadassah Medical Organization’s Department of Bone Marrow Transplantation and Immunotherapy for Adults and Children, and principal study investigator. "In AL amyloidosis, these data are compelling as recent trials demonstrate an overall response rate of 55% for DARZALEX-relapsed or refractory AL amyloidosis patients receiving investigator’s choice. Importantly, NXC-201 may offer a valuable option for the increasing number of AL amyloidosis patients who have progressed on DARZALEX-based standards of care."
Immix Biopharma Announces Positive NXC-201 Clinical Results at ASGCT (Free ASGCT Whitepaper): 100% Overall Response Rate in DARZALEX-Relapsed/Refractory AL Amyloidosis with Zero ICANs in Ongoing NEXICART-1 Phase 1b/2a Clinical Trial
A Media Snippet accompanying this announcement is available by clicking on the image or link below:
Immix Biopharma, Inc. (Nasdaq:IMMX)
The presentation can be accessed on the Nexcella corporate website at this link: View Source
Oral Presentation:
Title: "BCMA-Targeted CART (HBI0101), a Safe and Efficacious Novel Modality of Treatment for Light Chain Amyloidosis Patients"
Oral Presentation Date/Time: Friday May 19, 2023, 9:15am – 9:30am
Session Title: Late-Breaking Abstracts 1
Session Date/Time: Friday May 19, 2023, 8:00am – 9:45am
Data were presented from eight patients in the ongoing Phase 1b/2a NEXICART-1 study of NXC-201 (formerly HBI0101), a novel, autologous, BCMA-targeted chimeric antigen receptor T (CAR-T) cell therapy for the treatment of relapsed/refractory multiple myeloma and DARZALEX relapsed/refractory light chain (AL) amyloidosis patients. AL amyloidosis patients were infused with CAR+T cells at doses ranging from 150×106 to 800×106. This is the largest cohort of AL amyloidosis patients treated with a BCMA CAR-T therapy to-date. Of the patients treated, 62% (5/8) had NYHA classification III or IV heart failure prior to treatment. The highlights of the data presented include the following:
Overall response rate of 100% (8/8)
Complete response rate of 63% (5/8) (MRD 10-5)
Organ response rate of 75% (6/8)
Zero grade 4 cytokine release syndrome (CRS) events were reported
The best responder had a duration of response of 16.5 months as of the data cutoff of May 11, 2023, with response ongoing
Rapid organ response is believed to be related to fast reduction of free light chain toxicity
Data demonstrates that BCMA CAR-T therapy is well tolerated and potentially efficacious for the treatment of advanced, relapsed/refractory AL amyloidosis
About NEXICART-1
NEXICART-1 (NCT04720313) is an ongoing Phase 1b/2a, open-label study evaluating the safety and efficacy of NXC-201 (formerly HBI0101), in adults with relapsed or refractory multiple myeloma and AL amyloidosis.
The primary objective of the Phase 1b portion of the study was to characterize the safety and confirm the recommended Phase 2 dose (RP2D) and Phase 2 dose of NXC-201. The Phase 2 portion of the study will evaluate the efficacy and safety of NXC-201 with endpoints of overall survival, progression-free survival and response rates according to International Myeloma Working Group (IMWG) Uniform Response Criteria.
The Phase 1b portion of the ongoing Phase 1b/2a clinical trial has been successful in determining the recommended Phase 2 dose (RP2D) of 800 million CAR+T cells. Over the coming months, Nexcella plans to submit an IND application to the FDA for a Phase 1b/2 of NXC-201 in relapsed/refractory multiple myeloma and AL amyloidosis in order to expand the ongoing clinical trial to the U.S. The expected primary endpoint for the Phase 2 portion of the ongoing Phase 1b/2a clinical trial of NXC-201 in relapsed/refractory multiple myeloma is overall response rate and duration of response. Nexcella plans to submit data to the FDA in multiple myeloma once 100 patients are treated with NXC-201. The expected primary endpoint for NXC-201 in relapsed/refractory AL Amyloidosis is overall response rate. Nexcella plans to submit data to the FDA in AL amyloidosis once 30-40 patients are treated with NXC-201.
About NXC-201
NXC-201 (formerly HBI0101) is a BCMA-targeted investigational chimeric antigen receptor T (CAR-T) cell therapy that is being studied in a comprehensive clinical development program for the treatment of patients with relapsed or refractory multiple myeloma and AL amyloidosis.
About AL Amyloidosis
AL amyloidosis is a rare systemic disorder caused by an abnormality of plasma cells in the bone marrow. Misfolded amyloid proteins produced by plasma cells cause buildup in and around tissues, nerves and organs, gradually affecting their function. This can cause progressive and widespread organ damage, and high mortality rates.
AL amyloidosis affects roughly 30,000 – 40,000 patients in total throughout the U.S. and Europe, and it is estimated that there are approximately 3,000 – 4,000 new cases of AL amyloidosis annually in the U.S. The annual global incidence of AL Amyloidosis is ~15,000 patients.
The Amyloidosis market was $3.6 billion in 2017, expected to reach $6 billion in 2025, according to Grand View Research.