Pierre Fabre Pharmaceuticals Announces Updated Phase 3 Tabelecleucel Data at American Society of Hematology Meeting in Epstein-Barr Virus Positive Post-Transplant Lymphoproliferative Disease (EBV+ PTLD)

On December 8, 2025 Pierre Fabre Pharmaceuticals Inc., reported updated results presented at the 67th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting of the pivotal Phase 3 ALLELE study of tabelecleucel in adults and children with R/R EBV+ PTLD following HCT or SOT. The two abstracts included sub-analyses of pediatric patients and by prior therapy.

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"These two sub-analyses highlight the potential of tabelecleucel to improve outcomes for patients, both pediatric and adult, with R/R EBV+ PTLD who after undergoing a potentially life-saving solid organ or hematopoietic cell transplant suddenly face yet another life-threatening illness," said presenter and clinical investigator, Dr. Sarah Nikiforow, Assistant Professor, Stem Cell Transplantation, Dana-Farber Cancer Institute. "The updated data support the potential of tabelecleucel as an important advancement in addressing the significant unmet need for patients with EBV+ PTLD, who currently have no FDA-approved treatment options and may experience poor overall survival of only weeks to a few months following the failure of standard treatment."

ALLELE is an ongoing multicenter, open-label Phase 3 study. This analysis encompassed a larger cohort of 86 patients (29 HCT, 57 SOT). In the study, patients received a median of two treatment cycles. Each cycle of tabelecleucel consisted of three infusions given on days 1, 8 and 15 with an imaging assessment of efficacy on day 28.

The updated findings showed patients receiving tabelecleucel had an objective response rate (ORR) of 47.7% with the HCT cohort achieving an 48.3% ORR and SOT cohort achieving a 47.4% ORR. The median (95% CI) overall survival (OS) from Kaplan-Meier survival estimates for the HCT cohort was 18.6 months. For the SOT cohort, median OS was not estimable as more than half of the patients remained in follow-up. In a sub-analysis of treatment response by prior therapy in SOT patients, ORR was 52.4% for those receiving rituximab and 44.4% for those receiving rituximab and chemotherapy.

Safety findings presented were consistent with previously published data. Serious adverse events (SAEs) were reported in 58.6% of HCT and 66.7% of SOT patients. These events were related to study treatment in 1 HCT patient and 7 SOT patients. Fatal SAEs were reported in 5 HCT and 9 SOT patients, and none were reported by investigators to be treatment related. Pyrexia was reported in 1 SOT patient and considered as a potential sign of cytokine release syndrome possibly related to treatment. In the updated ALLELE study data, there were no reports of tumor flare or infusion reactions, immune effector cell-associated neurotoxicity syndrome, or transmission of infectious diseases. No events of graft vs host disease or organ rejection were reported as tabelecleucel related.

A new sub-analysis of 12 pediatric patients less than 17 years of age found the ORR was 50.0% with complete response reported in 4 of 12 patients, and partial response observed in 2 of 12 patients. Efficacy and safety observed in the pediatric sub-group was consistent with that reported in the overall population. Six patients developed treatment emergent adverse events (TESAEs); 4 TESAEs in 2 patients were considered treatment related. Fatal SAEs were reported in 2 patients, neither considered related to treatment. There were no reports of tumor flare, infusion reactions, immune effector cell-associated neurotoxicity syndrome, graft vs. host disease, transmission of infection or bone marrow/solid organ transplant rejection.

"The growing body of evidence supporting the efficacy and safety of tabelecleucel in treatment of people living with EBV+PTLD enhances our confidence in the potential of this innovative cell therapy. These patients have undergone a difficult journey to receive a life-saving transplant only to be diagnosed with this ultra rare form of cancer and they deserve an effective treatment option following failure of standard-of-care therapy," said Adriana Herrera, Chief Executive Officer of Pierre Fabre Pharmaceuticals Inc., the Pierre Fabre Laboratories pharmaceutical subsidiary in the United States. "We look forward to our FDA target action date in January 2026 and if approved, the opportunity to address the significant unmet medical need of these patients who urgently need new treatment options."

A BLA for tabelecleucel is currently under FDA review with a target action date of January 10, 2026. The application is granted priority review for tabelecleucel indicated as monotherapy for treatment of adult and pediatric patients two years of age and older with EBV+ PTLD who have received at least one prior therapy including an anti-CD20 containing regimen. The BLA is supported by pivotal study data from the ALLELE study and supportive data covering more than 430 patients treated with tabelecleucel.

About Tabelecleucel
Tabelecleucel is an allogeneic, off-the-shelf, EBV-specific T-cell immunotherapy designed to selectively target and eliminate EBV-infected cells. Unlike autologous CAR-T therapies, allogeneic T-cells are derived from third-party donors and are not genetically modified. T-cells are collected from the blood of healthy donors and activated by exposure to Epstein-Barr virus antigens, enriching for a population of T-cells that recognize EBV. These EBV-specific T-cells are then expanded, characterized, and cryopreserved for future use to treat patients.

About EBV+PTLD
EBV+ PTLD is an ultra-rare, acute, and potentially deadly blood malignancy that occurs after transplantation when patient T-cell immune responses are compromised by immunosuppression. It can impact patients who have undergone allogeneic HCT or SOT. Poor median survival of 3 weeks and 4.1 months for HCT and SOT, respectively, is reported in EBV+ PTLD patients for whom standard of care failed, underscoring the significant need for new therapeutic options.

(Press release, Pierre Fabre, DEC 8, 2025, View Source [SID1234661285])

Abcuro Presents Interim Phase 1 Data Evaluating Ulviprubart in Patients with T Cell Large Granular Lymphocytic Leukemia at the 67th American Society of Hematology Annual Meeting

On December 8, 2025 Abcuro, Inc., a late-stage clinical biotechnology company developing potentially first-in-class immunotherapies designed to benefit people living with debilitating and progressive rare autoimmune diseases and for other indications where certain cytotoxic T cells are pathogenic, reported interim data from the ongoing Phase 1/2 clinical trial evaluating ulviprubart (ABC008) in patients with T cell large granular lymphocytic leukemia (T-LGLL) with anemia and/or neutropenia, in an oral presentation at the 67th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting and Exposition, taking place December 6-9, 2025 in Orlando, Florida.

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Ulviprubart is a potentially first-in-class, potent, monoclonal antibody targeting KLRG1, a novel mechanism of action to drive selective depletion of highly differentiated T cells and modify disease progression. Ulviprubart was designed to target KLRG1-expressing T cells while sparing B and regulatory T cells that are required to maintain normal immune system homeostasis.

"The data presented at ASH (Free ASH Whitepaper) continue to support the potential of ulviprubart to selectively target and deplete highly differentiated T cells that drive debilitating diseases like T-LGLL. At the interim analysis, ulviprubart had an acceptable safety profile and was generally well tolerated across ascending doses, further supporting ulviprubart’s potential in treating patients with T-LGLL," said H. Jeffrey Wilkins, MD, Chief Medical Officer of Abcuro.

T-LGLL is a hematological cancer driven by pathogenic expansion of immune cells that are frequently KLRG1+, resulting in neutropenia and anemia. Neutropenia can lead to frequent infections, a major cause of premature death in patients with T-LGLL, while anemia results in transfusion dependence in approximately one-third of patients.

Key Highlights from Oral Presentation:

The Phase 1/2 clinical trial (NCT05532722) is an open label, ascending dose study of ulviprubart patients with T-LGLL. The primary objective is to evaluate safety and tolerability. Secondary objectives include evaluating initial efficacy and pharmacokinetic/pharmacodynamic (PK/PD) profile of ulviprubart.

As of the data cut-off date of November 15, 2025:

21 patients were enrolled and evaluable for safety. 95% (n=20) of patients had neutropenia and 57% (n=12) of patients had anemia at baseline.
62% (n=13) of patients achieved >12 weeks of Q4W dosing on ulviprubart.
Among evaluable patients, seven experienced sustained depletions of >50% of CD8+ CD57+ KLRG1+ T cells at two or more consecutive visits. Three patients experienced sustained depletions of >90% of both CD8+ CD57+ KLRG1+ T cells and the CD8+ CD57+ parent population.
Among evaluable patients, all had neutropenia and nine patients had anemia at baseline.
With treatment, seven patients had a neutropenia response, defined as an absolute neutrophil count (ANC) increase of ≥50% from baseline for ≥4 weeks or ANC levels ≥1000 cells/µL for ≥4 weeks.
With treatment, two patients had an anemia response, defined as hemoglobin increased ≥1 g/dL for ≥4 weeks and not attributable to transfusion or growth factor.
Overall, ulviprubart was well tolerated at increasing doses and had an acceptable safety profile. Most treatment-related treatment-emergent adverse events (TEAE) were mild or moderate in severity. One patient experienced a Grade 3 infusion-related reaction, the only serious treatment-related TEAE observed on therapy.

About Ulviprubart
Ulviprubart (ABC008) is potentially a first-in-class, potent, monoclonal antibody targeting KLRG1, a novel proposed mechanism of action to drive selective depletion of highly differentiated T cells and modify disease progression. KLRG1 is a cell surface receptor predominantly expressed on highly differentiated T cells, while moderately or minimally expressed on other immune cells. Ulviprubart was designed to selectively deplete KLRG1-expressing T cells while sparing B and regulatory T cells that are required to maintain normal immune system homeostasis.

(Press release, Abcuro, DEC 8, 2025, View Source [SID1234661301])

Genmab Presents Pivotal Phase 3 Data from EPCORE® FL-1 Trial Demonstrating Clinical Benefit of EPKINLY® (epcoritamab-bysp) in Combination with Rituximab and Lenalidomide (R2) in Patients with Relapsed or Refractory Follicular Lymphoma

On December 7, 2025 Genmab A/S (Nasdaq: GMAB) reported primary data from the pivotal Phase 3 EPCORE FL-1 study evaluating fixed duration EPKINLY (epcoritamab-bysp) in combination with rituximab and lenalidomide (EPKINLY + R2) in adult patients with relapsed or refractory (R/R) follicular lymphoma (FL). The study showed that treatment with EPKINLY + R2 reduced the risk of disease progression or death by 79% (HR 0.21, 95% CI: 0.14-0.31, p<0.0001) compared to standard of care R2. Additionally, the overall response rate (ORR) in patients treated with EPKINLY + R2 was 95% (95% CI: 91.5, 97.4) compared to 79% in patients treated with R2 (95% CI: 73.6, 84.1; P<.0001). The EPCORE FL-1 study results were presented during an oral presentation (abstract 466) at the 67th Annual Meeting and Exposition of the American Society of Hematology (ASH) (Free ASH Whitepaper) in Orlando, Florida, featured in the "Emerging Therapies and Immunotherapies in Blood Cancers" ASH (Free ASH Whitepaper) press briefing, and have been simultaneously published in The Lancet.

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"Patients with relapsed or refractory follicular lymphoma have historically had limited treatment options," said Lorenzo Falchi, M.D., Lymphoma Specialist, Department of Medicine, Memorial Sloan Kettering Cancer Center. "The EPCORE FL-1 results demonstrate that epcoritamab plus R2 is the first bispecific antibody-based, chemotherapy-free combination to show superior clinical benefit over standard of care in a Phase 3 trial, underscoring its potential to redefine the second-line treatment landscape for follicular lymphoma."

The EPCORE FL-1 study included patients with R/R FL following at least one prior line of treatment across a broad range of patient characteristics and disease risk factors. Among patients who were treated with EPKINLY + R2 at the second planned interim analysis (median follow-up, 14.8 months), 83% achieved a complete response (CR) (n=201/243, 95% CI: 77.4, 87.3) compared to a 50% CR rate among patients treated with R2 (n=122/245, 95% CI: 43.4, 56.2). The 12-month duration of response (DOR) was 89% (95% CI: 83.6, 93.0) versus 49% (95% CI: 38.8, 57.5) for patients treated with EPKINLY + R2 and R2, respectively.

The safety profile of EPKINLY + R2 in the EPCORE FL-1 study was consistent with the known safety profiles of the individual regimens (epcoritamab and R2). Grade 3 or 4 treatment-emergent adverse events (TEAE) were reported in 90.1% of patients treated with EPKINLY + R2 compared to 67.6% of patients treated with R2, the difference being primarily driven by higher rates of Grade 3 or 4 neutropenia (68.7% vs. 42.0%) and infections (33.3% vs. 15.1%). Fatal TEAEs occurred in 1.6% of patients treated with EPKINLY + R2 compared to 3.8% patients treated with R2. TEAEs leading to discontinuation occurred in 18.9% and 12.2% of patients treated with EPKINLY + R2 and R2, respectively. With the three step-up dosing regimen, CRS events were low grade and occurred in 26.3% of patients (21.2% Grade 1, 5.3% Grade 2).

"The pivotal results from the EPCORE FL-1 trial demonstrate the potential of epcoritamab, in combination with established therapies, to enable earlier intervention across sites of care and deliver improved outcomes for patients with relapsed or refractory follicular lymphoma," said Dr. Judith Klimovsky, Executive Vice President and Chief Development Officer of Genmab. "We remain committed to developing epcoritamab, as a monotherapy and in combination, as a potential core therapy for B-cell malignancies and as a therapeutic innovation that can shift the treatment paradigm."

In November 2025, the U.S. Food and Drug Administration (FDA) approved the combination of EPKINLY + R2 for the treatment of patients with relapsed or refractory FL after one or more lines of systemic therapy. EPKINLY is also approved in the U.S. to treat adults with relapsed/refractory FL after two or more prior treatments.

About the EPCORE FL-1 Trial
EPCORE FL-1 (NCT05409066) is a Phase 3 open-label interventional trial to evaluate the safety and efficacy of epcoritamab plus rituximab and lenalidomide (R2) versus R2 alone in patients with relapsed/refractory (R/R) follicular lymphoma (FL). Patients were randomized to receive EPKINLY in combination with rituximab and lenalidomide (n=243) or rituximab and lenalidomide alone (n=245). Patients received EPKINLY in 28-day cycles for a total of 12 cycles or until disease progression or unacceptable toxicity, whichever occurred first. Efficacy was established based on the dual primary endpoints of progression free survival (PFS) and overall response rate (ORR) determined by Lugano 2014 criteria as assessed by Independent Review Committee (IRC). Additional efficacy outcome measures include complete response (CR) and duration of response (DOR).

About Follicular Lymphoma (FL)
Follicular lymphoma (FL) is typically an indolent, or slow-growing, form of non-Hodgkin lymphoma (NHL), that arises from B-lymphocytes. The second most common form of NHL, FL accounts for 20-30% of all NHL cases and is diagnosed in approximately 15,000 people in the U.S. every year.i,ii FL is considered incurable with current standard of care therapies.iii Patients often relapse, and with each relapse the remission and time to next treatment shorten.iv Over time, transformation to diffuse large B-cell lymphoma (DLBCL), an aggressive form of NHL associated with poor survival outcomes, can occur in more than 25% of FL patients.v

About Epcoritamab
Epcoritamab is an IgG1-bispecific antibody created using Genmab’s proprietary DuoBody technology and administered subcutaneously. Genmab’s DuoBody-CD3 technology is designed to direct cytotoxic T cells selectively to elicit an immune response toward target cell types. Epcoritamab is designed to simultaneously bind to CD3 on T cells and CD20 on B cells and induces T-cell-mediated killing of CD20+ cells.vi

Epcoritamab (approved under the brand name EPKINLY in the U.S. and Japan, and TEPKINLY in the EU) has received regulatory approval in certain lymphoma indications in several territories. Where approved, epcoritamab is a readily accessible therapy. Epcoritamab is being co-developed by Genmab and AbbVie as part of the companies’ oncology collaboration. The companies will share commercial responsibilities in the U.S. and Japan, with AbbVie responsible for further global commercialization. Both companies will pursue additional international regulatory approvals for the investigational R/R FL indication and additional approvals for the R/R DLBCL indication.

Genmab and AbbVie continue to evaluate the use of epcoritamab as a monotherapy, and in combination, across lines of therapy in a range of hematologic malignancies. This includes four ongoing Phase 3, open-label, randomized trials, among them a trial evaluating epcoritamab as a monotherapy in patients with R/R DLBCL compared to investigators choice chemotherapy (NCT04628494), a trial evaluating epcoritamab in combination with R-CHOP in adult patients with newly diagnosed DLBCL (NCT05578976), a trial evaluating epcoritamab in combination with R2 compared to chemoimmunotherapy in patients with previously untreated FL (NCT06191744), and a trial evaluating epcoritamab in combination with lenalidomide compared to chemotherapy infusion in patients with R/R DLBCL (NCT06508658). The safety and efficacy of epcoritamab has not been established for these investigational uses. Please visit www.clinicaltrials.gov for more information.

(Press release, Genmab, DEC 7, 2025, View Source [SID1234661201])

ImCheck Reports Durable Responses and Early Overall Survival Signal with ICT01 in First-line AML at ASH 2025

On December 7, 2025 ImCheck Therapeutics reported updated results from its Phase I/II EVICTION study evaluating ICT01, a first-in-class γ9δ2 T-cell activator, in combination with azacitidine and venetoclax in newly diagnosed AML patients ineligible for intensive chemotherapy. The data were presented by Dr. Sylvain Garciaz (Institut Paoli-Calmettes, Marseille, France) in an oral session at the 67th ASH (Free ASH Whitepaper) Annual Meeting, taking place December 6-9, in Orlando, Florida. The data presentation follows ImCheck’s recently announced agreement to be acquired by Ipsen, pending transaction close.

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The ASH (Free ASH Whitepaper) 2025 dataset builds on the promising efficacy signals previously shared at ASCO (Free ASCO Whitepaper) [2] 2025, highlighting rapid, deep, and durable responses with a favorable safety profile and encouraging early overall survival. Notably, responses were strongest at the 10mg ICT01 dose, which has now been endorsed by the FDA for further development. In 2025, ICT01 also received Orphan Drug Designation from both the FDA[3] and EMA.

"ICT01 continues to demonstrate rapid and durable responses across AML subtypes. The updated ASH (Free ASH Whitepaper) data further strengthens our confidence in ICT01’s ability, when added to Aza-Ven, to deliver deep, lasting remissions that have the potential to translate into meaningful overall survival improvement for patients" said Stephan Braun, MD, PhD, Chief Medical Officer of ImCheck Therapeutics. "We see an early onset of complete remissions, consistently strong efficacy at the selected dose across molecular subtypes, and signs of durable responses even in adverse-risk patients. These findings together with the encouraging early survival signal create a compelling case as we advance toward late-stage development."

Key Highlights:
Patient population: At the data cut-off on October 6, 2025, 57 patients aged 51 to 87 had been enrolled. Of these, 41 received 10 mg ICT01 and 16 received 75 mg ICT01, each in combination with Aza-Ven.
Rapid responses: More than 90% of patients treated with ICT01 (10 mg) achieved CRc4 as their best response already by end of Cycle 2.
Broad molecular activity: The 10 mg dose selected for future studies produced higher CR/CRc rates across molecular subtypes, including favorable-, intermediate-, and adverse-risk AML (e.g., TP53-mutated) versus the 75 mg dose.
Durability emerging: At a median follow-up of 10.8 months median DoR[5] was not yet reached for the 10 mg ICT01 dose.
Early survival signal: A 12-month OS[6] rate of 62% was observed, which is numerically higher than the ~54% reported for the Aza-Ven regimen in recent Phase 3 trials.
Favorable benefit–risk profile: Safety of the novel triplet regimen ICT01-Aza-Ven remains well manageable, with a 30-day mortality rate of 4%, and no deaths attributed to ICT01.
Regulatory momentum: ICT01 received Orphan Drug Designation from both FDA and EMA. The 10 mg ICT01 dose has been endorsed by FDA for further clinical development of the triplet regimen.
"ImCheck has in hand the alignment of strong clinical activity, a favorable safety profile, Orphan Drug Designations on both sides of the Atlantic, and now a clear regulatory-endorsed dose for ICT01 for accelerated late-stage development," added Pierre d’Epenoux, Chief Executive Officer of ImCheck Therapeutics. "These results arrive at a transformative moment for ImCheck, following the announced acquisition agreement with Ipsen. We remain deeply grateful to the patients, investigators, and our team for bringing ICT01 to this important inflection point."

(Press release, ImCheck Therapeutics, DEC 7, 2025, View Source [SID1234661217])

At ASH 2025 Oral Presentation, Immix Biopharma Reports Positive Phase 2 NXC-201 Results, Advancing Toward BLA Submission as a Potentially First- and Best-in-Class Therapy for relapsed/refractory AL Amyloidosis

On December 7, 2025 Immix Biopharma, Inc. ("ImmixBio", "Company", "We" or "Us" or "IMMX"), a global leader in relapsed/refractory AL Amyloidosis, reported positive phase 2 NXC-201 results in an oral presentation at ASH (Free ASH Whitepaper) 2025 presented by Heather Landau, MD, of Memorial Sloan Kettering Cancer Center. NXC-201 demonstrated a complete response (CR) rate of 75% (15/20) (at s/u IFE(-) level) by independent review committee. In four out of five pending patients, MRD negativity in bone marrow predicts future complete response, potentially increasing future CR rate to 95%. NEXICART-2 final readout and BLA submission are planned for 2026.

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"In the larger patient set Phase 2 results presented today at ASH (Free ASH Whitepaper), we are thrilled to see complete response rates continue to improve in NEXICART-2. These excellent results demonstrate the potential of NXC-201 to address the significant unmet medical need in relapsed/refractory AL Amyloidosis," said Ilya Rachman, MD, PhD, Chief Executive Officer of Immix Biopharma. Gabriel Morris, Chief Financial Officer of Immix Biopharma, added, "This exciting Phase 2 milestone brings us one step closer to delivering this promising therapy to patients upon planned BLA submission in 2026."

ASH Presentation Results – Phase 2

Prior to NXC-201 treatment, all patients were exposed to an anti-CD38 antibody and a proteasome inhibitor. Median prior lines of therapy was 4 (range: 1-10). All patients had baseline relapsed/refractory AL Amyloidosis organ involvement. After NXC-201 treatment, complete responses (CRs) were observed in 75% (15 out of 20 patients) (at s/u IFE(-) level) by independent review committee. In four out of five pending patients, minimum residual disease (MRD) negativity in bone marrow predicts future complete response, potentially increasing the future CR rate to 95%. Downstream clinical improvement, including organ responses, were observed in 70% of evaluable patients (7/10). No neurotoxicity was observed. Only low-grade cytokine release syndrome has been observed with a median duration of 1 day. The ASH (Free ASH Whitepaper) presentation contains clinical data as of November 13, 2025.

Current treatments typically result in a 10% or lower complete response (CR) rate in relapsed/refractory AL Amyloidosis according to Zanwar, et al 2024, indicating a high unmet medical need.

KOL Event Discussing NXC-201 ASH (Free ASH Whitepaper) 2025 Oral Presentation of Phase 2 Clinical Results

A Key Opinion Leader (KOL) event with lead investigator Heather Landau, MD, of Memorial Sloan Kettering Cancer Center, Shahzad Raza, MD, of Cleveland Clinic, and Vaishali Sanchorawala, MD, of Boston Medical Center will be held Sunday, December 7, 2025 8:00pm ET to discuss the significance of the NEXICART-2 Phase 2 Clinical Results. Register to attend here.

About NEXICART-2
NEXICART-2 (NCT06097832) is an ongoing multi-site U.S. Phase 2 clinical trial of sterically-optimized CAR-T NXC-201 in relapsed/refractory AL Amyloidosis, with a registrational design. NEXICART-2 is expected to enroll 40 patients.

About NXC-201
NXC-201 is a sterically-optimized BCMA-targeted chimeric antigen receptor T (CAR-T) cell therapy with a "digital filter" that is designed to filter out non-specific activation. NXC-201 teaches the immune system to recognize and eliminate the source of the toxic light chains. NXC-201 has been awarded Regenerative Medicine Advanced Therapy (RMAT) by the FDA, and Orphan Drug Designation (ODD) by the US FDA and in the EU by the EMA.

About AL Amyloidosis
AL amyloidosis is a devastating disease where the immune system, that’s supposed to protect, instead continuously produces toxic light chains, clogging up the heart, kidney and liver, causing organ failure and death.

The number of patients in the U.S. with relapsed/refractory AL Amyloidosis is estimated to be growing at 12% per year according to Staron, et al Blood Cancer Journal, to approximately 38,500 patients in 2026.

The Amyloidosis market was $3.6 billion in 2017, and is expected to reach $6 billion in 2025, according to Grand View Research.

(Press release, Immix Biopharma, DEC 7, 2025, View Source [SID1234661202])