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Safety and Efficacy of ALLO-605 an Anti-BCMA Allogeneic CAR T Cell Therapy in Patients With Relapsed/Refractory Multiple Myeloma

A Single-Arm, Open-Label, Phase 1/2 Study Evaluating the Safety, Efficacy, and Cellular Kinetics/Pharmacodynamics of ALLO-647 and ALLO-605, an Anti- BCMA Allogeneic CAR T Cell Therapy in Patients With Relapsed/Refractory Multiple Myeloma

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05000450
Enrollment
6
Registered
2021-08-11
Start date
2021-06-06
Completion date
2023-10-11
Last updated
2024-06-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Relapsed/Refractory Multiple Myeloma

Keywords

CAR T, Cell Therapy, Allogeneic Cell Therapy, Cellular Immuno-therapy, AlloCAR T, ALLO-605, ALLO-647, Multiple Myeloma

Brief summary

The purpose of the ALLO-605-201 study is to assess the safety, efficacy, and cell kinetics of ALLO605 in adults with relapsed or refractory multiple myeloma after a lymphodepletion regimen comprising fludarabine, cyclophosphamide, and ALLO-647.

Interventions

GENETICALLO-605

ALLO-605 is an anti-BCMA, TRAC/CD52 allogeneic edited, intracellular cytokine signaling containing, CAR T cell product

BIOLOGICALALLO-647

ALLO-647 is a monoclonal antibody that recognizes a CD52 antigen

DRUGFludarabine

Chemotherapy for lymphodepletion

DRUGCyclophosphamide

Chemotherapy for lymphodepletion

Sponsors

Allogene Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Documented diagnosis of relapsed/refractory multiple myeloma (MM) * Subjects must have measurable disease * Subjects must have received ≥3 prior MM lines of therapy * Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 * Adequate hematologic, renal, liver, pulmonary, and cardiac functions * Life expectancy of at least 3 months without treatment

Exclusion criteria

* Subjects with known active or history of central nervous system (CNS) or leptomeningeal involvement of myeloma or plasma cell leukemia * Current or history of thyroid disorder (including hyperthyroidism), except for subjects with hypothyroidism controlled on a stable dose of hormone replacement therapy * Autologous stem cell transplantation within last 6 weeks prior to the start of lymphodepletion * Any prior allogeneic hematopoietic stem cell transplantation * Systemic anti-cancer therapy within 2 weeks prior to the start of lymphodepletion

Design outcomes

Primary

MeasureTime frameDescription
Phase 1: Proportion of subjects experiencing Dose Limiting Toxicities at increasing doses of ALLO-605 that will determine MTD/MAD and select the recommended Phase 2 dose (RP2D) of ALLO-605.28 daysDose limiting toxicity is defined as protocol-defined ALLO-605 related adverse events with onset within 28 days following infusion
Phase 1: Proportion of patients experiencing Dose Limiting Toxicities with ALLO-647 [administered in combination with fludarabine/cyclophosphamide administered prior to ALLO-605]30 daysDose-limiting toxicity is defined as protocol-defined ALLO-647-related adverse events with onset within 30 days following 1st infusion
Phase 2: To assess clinical efficacy of ALLO-605 as measured by overall response rate (ORR)12 months of study follow-up

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026