Aucatzyl (obecabtagene autoleucel) / Autolus - LARVOL DELTA

CAR-T Cell Therapy in RR B-ALL (ICBMT 2025) - "So far, three products representing autologous CAR T -cells with anti -CD19 specificity , tisagenlecleucel (tisa -cel), brexucab tagene autoleucel (brexu -cel) and obec abtagene autoleucel (obe -cel) have been approved for the treatment of relapsed/refractory (RR) B-ALL...Similarly, allogeneic CAR T -cells are being engineered, with the objective to simplify the logistics of the procedure. Taking into account its very high research and development po tential, it can be hypothesized that, in the future, CAR T -cells will become an important component of the treatment algorithm, not necessarily restricted to RR setting, but used already in first line treatment."

CAR T-Cell Therapy • IO biomarker • CD22

An Economic Model Comparing the Costs Associated with Cytokine Release Syndrome (CRS) and Immune Effector Cell-Associated Neurotoxicity Syndrome (ICANS) Among Patients Treated with Chimeric Antigen Receptor (CAR) T-Cell Therapies for Relapsed/Refractory B-Cell Acute Lymphoblastic Leukemia (R/R B-ALL) (SOHO 2025) - P1/2 | "Objective: To estimate the cost of CRS/ICANS in patients with R/R BALL treated with obe-cel or brexucabtagene autoleucel (brexu-cel)... Obe-cel was associated with lower CRS/ICANS-related healthcare costs versus brexu-cel. These results suggest that obe-cel improves resource utilization and reduces healthcare costs versus other CAR T-cell therapies for R/R B-ALL. Funding: Autolus."

Clinical • Cytokine release syndrome • Acute Lymphocytic Leukemia • B Acute Lymphoblastic Leukemia • Hematological Malignancies • Leukemia • Oncology

Next Questions: Acute Lymphoblastic Leukemia (SOHO 2025) - "The incorporation of the CD3/CD19 bispecific T-cell engager, blinatumomab, and the anti-CD22 monoclonal antibody-drug conjugate, inotuzumab-ozogamicin, for newly diagnosed Ph-negative B-cell ALL have led to promising survival outcomes in the frontline setting for B-cell ALL...In patients at high risk of CNS relapse — such as those with high baseline white blood cell counts (>70 × 10 9) 3— high-dose cytarabine and methotrexate should be incorporated, especially if allogeneic stem cell transplant (allo-SCT) is not pursued in first complete remission (CR1)...Efforts to improve the outcomes in this subgroup include the hyper-CVAD chemotherapy backbone in combination with nelarabine and pegylated asparaginase, which results in a 3-year OS of around 74%. Furthermore, the addition of venetoclax may improve outcomes, at least in a subset of patients with early T-cell precursor (ETP) ALL...14–17 Conclusions The future of ALL treatment includes the continued optimization..."

IO biomarker • Acute Lymphocytic Leukemia • Hematological Malignancies • Leukemia • Oncology • CD5 • CD7 • KMT2A

Aucatzyl: “The committee confirmed that all issues previously identified in this application had been addressed”; Acute lymphoblastic leukemia (European Medicines Agency) - CHMP Final Minutes of the meeting on 19 - 22 May 2025: “Based on the draft opinion prepared by the CAT, the Committee adopted a positive opinion recommending the granting of a conditional marketing authorization by consensus together with the CHMP assessment report and translation timetable”

CHMP • B Acute Lymphoblastic Leukemia • Hematological Malignancies • Oncology

Can Chimeric Antigen Receptor T-Cell Therapy Be a Definitive Treatment for Adult Relapsed/ Refractory B-Cell Acute Lymphoblastic Leukemia Without Stem Cell Transplant? Long-Term Findings and Predictors of Sustained Remission for Obecabtagene Autoleucel (SOHO 2025) - P1/2 | " Important factors identified from the UVA included: age (3), response status to first/last LOT, previous allogeneic stem-cell transplantation (SCT), and previous inotuzumab ozogamicin... Obe-cel persistence, low disease burden at lymphodepletion, and obe-cel use in earlier lines were associated with better outcomes and longer survival. These data reinforce that obe-cel persistence is important for long-term survival without additional treatments, suggesting the potential of obe-cel as a definitive treatment. Accepted for presentation at the EHA 2025 Congress (Milan, Italy; June 12-15, 2025)."

CAR T-Cell Therapy • Clinical • Acute Lymphocytic Leukemia • B Acute Lymphoblastic Leukemia • Hematological Malignancies • Leukemia • Oncology

Autolus Therapeutics Reports Second Quarter 2025 Financial Results and Business Updates (The Manila Times) - "AUCATZYL Launch: Autolus reported Q2 2025 net product sales of $20.9 million....Summary of Anticipated News Flow: H2 2025 - ALL: PY01 trial in pediatric ALL first clinical data."

P1 data • Sales • B Acute Lymphoblastic Leukemia

Obecabtagene autoleucel: “The CHMP was updated on discussions at the CAT. The Committee was reminded of the status of this application and its remaining outstanding issues”; relapsed or refractory B cell precursor acute lymphoblastic leukaemia (European Medicines Agency) - CHMP Final Minutes of the meeting on 24 - 27 Mar 2025: “The committee endorsed a list of outstanding issues with a specific timetable, as adopted by CAT”

CHMP • B Acute Lymphoblastic Leukemia • Hematological Malignancies • Oncology

BOBCAT: Obe-cel in Refractory Progressive Forms of Multiple Sclerosis (clinicaltrials.gov) - P1 | N=18 | Recruiting | Sponsor: Autolus Limited

New P1 trial • CNS Disorders • Multiple Sclerosis

Autolus Therapeutics Reports...Business Updates (The Manila Times) - "Obe-cel in lupus nephritis (LN): The Company has aligned with the U.S. Food and Drug Administration (FDA) on the Phase 2 trial design and potential registrational path to approval and continues to anticipate dosing the first patient in a Phase 2 clinical trial before the end of 2025. Data with longer term follow-up from the Phase 1 CARLYSLE clinical trial is on track for presentation at a medical conference in the second half of 2025. Obe-cel in progressive MS: The Company continues to expect to dose its first patient in a Phase 1 dose escalation study by year-end 2025....ALA: Expect to dose first patient in Phase 1 trial in AL by year-end 2025."

New P1 trial • New P2 trial • P1 data • Amyloidosis • Lupus Nephritis • Multiple Sclerosis

Autolus Therapeutics’ CAR T Therapy AUCATZYL (Obecabtagene Autoleucel) Granted European Marketing Authorization for Adult Patients (age 26 and older) with Relapsed or Refractory B-Cell Precursor Acute Lymphoblastic Leukemia (R/R B-ALL) (GlobeNewswire) - "Autolus Therapeutics plc...announces today that the European Commission (EC) has granted marketing authorization for AUCATZYL (obecabtagene autoleucel or 'obe-cel') for the treatment of adult patients, 26+, with relapsed or refractory B-cell precursor acute lymphoblastic leukemia (r/r B-ALL). The EC approval was based on the results of the FELIX study, an open-label, multi centre, single arm study in adult patients with relapsed or refractory B-cell acute lymphoblastic leukaemia....The EC approval applies to all 27 European Union Member States, Iceland, Norway and Liechtenstein."

EMA approval • B Acute Lymphoblastic Leukemia

Phase 2 Study Assessing the Clinical Activity and Safety of Obecabtagene Autoleucel as a Consolidation in Patients With Newly Diagnosed High-risk B-cell Acute Lymphocytic Leukemia (ALL) (clinicaltrials.gov) - P2 | N=30 | Not yet recruiting | Sponsor: M.D. Anderson Cancer Center

New P2 trial • Acute Lymphocytic Leukemia • B Acute Lymphoblastic Leukemia • Hematological Malignancies • Leukemia • Oncology

Obecabtagene autoleucel, a novel CD19-directed CAR T-cell therapy for relapsed/refractory B-cell acute lymphoblastic leukemia: the future for reducing toxicity and T-cell exhaustion? (PubMed, Expert Rev Hematol) - "As real-world experience and longer-term data accrue, obe-cel may emerge not only as a bridge to transplantation but also as a definitive therapy for select patients. The success of this approach may inform future CAR design across hematologic malignancies and support a paradigm shift toward receptor-tuned cellular immunotherapies."

Journal • Review • Acute Lymphocytic Leukemia • B Acute Lymphoblastic Leukemia • Hematological Disorders • Hematological Malignancies • Leukemia • Oncology • Transplantation

Obe-cel in Severe, Refractory Systemic Lupus Erythematosus With Active Lupus Nephritis (clinicaltrials.gov) - P2 | N=35 | Not yet recruiting | Sponsor: Autolus Limited

New P2 trial • Glomerulonephritis • Immunology • Inflammatory Arthritis • Lupus • Lupus Nephritis • Nephrology • Systemic Lupus Erythematosus

An interview with dr Jean a yared on their experiences as an investigator for obecabtagene autoleucel - by Reegan Burnell (commissioning Editor). (PubMed, Expert Rev Hematol) - "In order to validate the simulation results obtained by bond graph models, an experimental study of the Skystream is compared with the complete simulation of the turbine.The motivation to develop these models in a bond graph approach is to design and build a low-cost wind turbine similar to the Skystream. Thus, the main contributions of this paper are: a bond graph model of the Skystream wind turbine, the PMSG, rectifier and inverter are modelled by multibond graphs."

Interview • Journal

EFFICACY AND SAFETY OUTCOMES OF OBECABTAGENE AUTOLEUCEL (OBE-CEL) STRATIFIED BY AGE IN PATIENTS WITH RELAPSED/REFRACTORY B-CELL ACUTE LYMPHOBLASTIC LEUKEMIA (R/R B-ALL) (EHA 2025) - P1/2 | "A higher proportion of pts aged <55 years were Hispanic/Latino (36.7% vs 18.8%), had extramedullary disease at lymphodepletion (29.1% vs 8.3%), and had received prior blinatumomab (53.2% vs 22.9%), and/or prior inotuzumab ozogamicin (35.4% vs 25.0%) vs those aged ≥55 years... Obe-cel treatment was associated with deep and durable remissions resulting in favorable ORR, EFS, and OS with low incidence of Grade ≥3 CRS and ICANS in both age groups. These findings indicate that obe-cel is effective and has a positive benefit and risk profile regardless of pt age, including in older adults with R/R B-ALL, despite few pts receiving consolidative SCT"

Clinical • Acute Lymphocytic Leukemia • B Acute Lymphoblastic Leukemia • Hematological Malignancies • Leukemia • Oncology

PREDICTING HEMATOTOXICITY RISK AND OUTCOMES IN RELAPSED/REFRACTORY B-CELL ACUTE LYMPHOBLASTIC LEUKEMIA (R/R B-ALL): SHOULD HEMATOTOX MODELS BE CAR SPECIFIC RATHER THAN DISEASE SPECIFIC (EHA 2025) - P1/2 | "A higher proportion of CAR-HT low-risk (80.0%) vs high-risk pts (51.0%) received prior blinatumomab or inotuzumab ozogamicin... Although both models show potential, ALL-HT appears to improve risk stratification and may be a better predictor of response, survival and safety outcomes in adult pts with R/R B-ALL treated with obe-cel, than CAR-HT. Taken together with other published reports, our data suggest that the strength of HT-model predictions may be CAR specific. Further analyses are needed."

Acute Lymphocytic Leukemia • B Acute Lymphoblastic Leukemia • B Cell Lymphoma • Hematological Malignancies • Infectious Disease • Large B Cell Lymphoma • Leukemia • Lymphoma • Non-Hodgkin’s Lymphoma • Oncology • CRP

DURABLE RESPONSES AND FAVOURABLE TOXICITY AFTER FAST OFF-RATE CD19 CAR T-CELL THERAPY WITH OBECABTAGENE AUTOLEUCEL IN ADULTS WITH RELAPSED/REFRACTORY B-CELL MALIGNANCIES (ICML 2025) - P1, P1/2 | "Patients underwent lymphodepletion with cyclophosphamide (1 × 60 mg/kg) and fludarabine (3 × 30 mg/m2), and additionally with pembrolizumab (1 × 200 mg) for DLBCL... Obe-cel demonstrates a tolerable safety profile, high remission rates, and excellent expansion and persistence in R/R adult B-cell malignancies beyond B-ALL."

CAR T-Cell Therapy • Clinical • Acute Lymphocytic Leukemia • B Acute Lymphoblastic Leukemia • B Cell Lymphoma • Chronic Lymphocytic Leukemia • Diffuse Large B Cell Lymphoma • Follicular Lymphoma • Hematological Malignancies • Leukemia • Lymphoma • Mantle Cell Lymphoma • Non-Hodgkin’s Lymphoma • Oncology

CAN CAR T-CELL THERAPY BE A DEFINITIVE TREATMENT FOR ADULT R/R B-ALL WITHOUT TRANSPLANT? LONG-TERM FINDINGS AND PREDICTORS OF SUSTAINED REMISSION FOR OBECABTAGENE AUTOLEUCEL (EHA 2025) - P1/2 | "Stepwise variable selection was performed to identify the list of important factors in the final model.Important factors identified from the UVA included: age (3), response status to first and last line of therapy, previous allogeneic SCT and previous inotuzumab ozogamicin prior to leukapheresis... Obe-cel persistence, low disease burden at LD and obe-cel use in earlier lines were independent factors associated with better outcomes and longer survival in adult pts with R/R B-ALL. These data re-enforce that obe-cel persistence is important in achieving long-term survival without additional treatments, suggesting the potential of obe-cel as a definitive treatment."

CAR T-Cell Therapy • Clinical • Transplantation

Efficacy and safety outcomes of obecabtagene autoleucel (obe-cel) stratified by age in patients (pts) with relapsed/refractory B-cell acute lymphoblastic leukemia (R/R B-ALL). (ASCO 2025) - P1/2 | "A higher proportion of pts aged <55 yrs were Hispanic/Latino (36.7% vs 18.8%), had extramedullary disease at lymphodepletion (LD; 29.1% vs 8.3%), received prior blinatumomab (53.2% vs 22.9%), and prior inotuzumab ozogamicin (35.4% vs 25.0%) than those ≥55 yrs, while a higher proportion of pts aged ≥55 yrs had Philadelphia chromosome-positive disease (47.9% vs 16.5%)... Obe-cel treatment resulted in favorable ORR and EFS with low Grade ≥3 CRS/ICANS incidence in both age groups. These findings indicate that obe-cel is effective and has a positive benefit/risk profile regardless of age, including in older adults with R/R B-ALL despite few receiving consolidative SCT."

Clinical • Acute Lymphocytic Leukemia • B Acute Lymphoblastic Leukemia • Hematological Malignancies • Leukemia • Oncology

Efficacy and Safety Outcomes of Obecabtagene Autoleucel (obe-cel) Stratified by Age in Patients with r/r B-ALL (The Manila Times) - P1/2 | N=153 | FELIX (NCT04404660) | Sponsor: Autolus Limited | "Obe-cel treatment was associated with deep and durable remissions resulting in favorable overall remission rate, event free survival, and overall survival with low incidence of Grade ≥3 CRS and ICANS in both age groups (<55 years and ≥55 years). These findings indicate that obe-cel is effective and has a positive benefit and risk profile regardless of patient age, including in older adults with R/R B-ALL."

P1/2 data • B Acute Lymphoblastic Leukemia

CD-19 CAR-T cell therapy in adult B-cell ALL patients: A systematic review of clinical trials. (ASCO 2025) - "CD19 CAR-T cell therapies, including Obe-cel, KTE-X19, UCART19, and GC007g, have demonstrated efficacy and safety in the treatment of relapsed/refractory (RR) adult B-cell ALL patients. Among these, Obe-cel stands out with a lower incidence of severe cytokine release syndrome (CRS) and immune effector cell-associated neurotoxicity syndrome (ICANS), making it a promising therapy for outpatient administration. However, large-scale, randomized, multi-center clinical trials are essential to validate these findings and further refine the role of CD19 CAR-T therapies in this high-risk population."

CAR T-Cell Therapy • Clinical • Review • Acute Lymphocytic Leukemia • B Acute Lymphoblastic Leukemia • Hematological Malignancies • Leukemia • Oncology

Predicting Hematotoxicity Risk and Outcomes in Relapsed/Refractory B-Cell Acute Lymphoblastic Leukemia (r/r B-All): Should Hematotox Models be CAR Specific Rather than Disease Specific (The Manila Times) - P1/2 | N=153 | FELIX (NCT04404660) | Sponsor: Autolus Limited | "Although both the CAR-Hematotox (CAR-HT) model, and the ALL-Hematotox (ALL-HT) model show potential, ALL-HT appears to improve risk stratification and may be a better predictor of response, survival and safety outcomes in adult patients with r/r B-ALL treated with obe-cel, than CAR-HT."

P1/2 data • B Acute Lymphoblastic Leukemia

CARLYSLE: a Phase I trial in progress evaluating the safety and efficacy of obecabtagene autoleucel in severe, refractory systemic lupus erythematosus (SLE) (UKKW 2025) - P1 | "Patients must be refractory to previous standard of care medications, including hydroxychloroquine in combination with corticosteroids and to ≥2 treatment groups of immunosuppressive drugs, B-cell targeting agents or cytokine inhibitors. Eligible patients may receive bridging therapy before lymphodepletion with fludarabine (3×25 mg/m²) and cyclophosphamide (1,000 mg/m²) prior to obe- cel infusion...All four infused patients have significant biopsy-proven renal disease. Discussion CARLYSLE is an ongoing trial currently enrolling patients with severe, refractory SLE in centres in UK and Spain."

Clinical • P1 data • Acute Lymphocytic Leukemia • B Acute Lymphoblastic Leukemia • Hematological Malignancies • Immunology • Inflammation • Inflammatory Arthritis • Leukemia • Lupus • Nephrology • Oncology • Renal Disease • Rheumatology • Systemic Lupus Erythematosus

Autolus Therapeutics Presents Long-Term Follow Up from the FELIX Study Demonstrating Obe-Cel's Potential for Long-Term Remission in R/R B-ALL at the 2025 European Hematology Association (EHA) Congress (The Manila Times) - P1/2 | N=153 | FELIX (NCT04404660) | Sponsor: Autolus Limited | "At the updated median follow up of 32.8 months, 38.4% of responders were in ongoing remission without consolidative SCT or other therapies (versus the previously reported 40% at a median follow up of 21.5 months). The 24-month probability of Event Free Survival was 43%, and for Overall Survival was 46%, with an emerging long-term plateau observed. A substantial subset of patients benefit from standalone treatment with obe-cel, achieving long-term remission. No new safety signals or Grade ≥3 secondary malignancies were observed at the extended follow-up. These results suggest that obe-cel may be a definitive treatment for some patients with r/r B-ALL - specific analysis will be needed to determine which patients may need additional treatments."

P1/2 data • B Acute Lymphoblastic Leukemia

Meeting highlights from the Committee for Medicinal Products for Human Use (CHMP) 19-22 May 2025 (European Medicines Agency) - "On 22 May 2025, the Committee for Medicinal Products for Human Use (CHMP) adopted a positive opinion, recommending the granting of a conditional marketing authorisation for the medicinal product Aucatzyl, intended for the treatment of adults from 26 years of age with relapsed or refractory B cell precursor acute lymphoblastic leukaemia....Aucatzyl is indicated for the treatment of adult patients 26 years of age and above with relapsed or refractory (r/r) B cell precursor acute lymphoblastic leukaemia (B ALL)."

CHMP • B Acute Lymphoblastic Leukemia