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Study Evaluating SC291 in Subjects With r/r B-cell Malignancies (ARDENT)

A Phase 1 Study Evaluating SC291, a Hypoimmune, Allogeneic CD19-directed CAR T Cell Therapy, in Relapsed and/or Refractory B-cell Malignancies (ARDENT)

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05878184
Enrollment
16
Registered
2023-05-26
Start date
2023-05-02
Completion date
2038-11-04
Last updated
2025-10-02

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

Conditions

Chronic Lymphocytic Leukemia, Non Hodgkin Lymphoma

Keywords

Large B cell lymphoma, CAR T Cell Therapy, Mantle cell lymphoma, Indolent follicular lymphoma, Marginal zone lymphoma, High-grade B cell lymphoma, Primary mediastinal B cell lymphoma, Diffuse large B cell lymphoma, Non-Hodgkin's Lymphoma, Chronic Lymphocytic Leukemia, Allogeneic, Hypoimmune, CD19

Brief summary

SC291-101 is a Phase 1 study to evaluate SC291 safety and tolerability, anti-tumor activity, cellular kinetics, immunogenicity, and exploratory biomarkers.

Detailed description

This is an open-label, single arm, Phase 1, first-in-human (FIH) study to evaluate the safety and tolerability of SC291 administered intravenously (IV) following a standard lymphodepleting chemotherapy regimen of cyclophosphamide and fludarabine in subjects with NHL or CLL who have received two or more prior systemic treatments per standard of care (or after autologous stem cell transplant \[ASCT\] for NHL). This study will be conducted in 2 parts. Phase 1a: dose finding using a 3+3 design in subjects with NHL or CLL. Phase 1b: dose expansion to further evaluate safety and efficacy at the RP2D in subjects with LBCL and CLL.

Interventions

DRUGSC291

SC291 is an allogeneic CAR-T cell therapy

Sponsors

Sana Biotechnology
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Male or female subjects aged 18-80 years at the time of signing informed consent. * Diagnosis of NHL (WHO 2016 criteria) or CLL (iwCLL criteria), including: * Large B-cell lymphoma, including diffuse large B-cell lymphoma (DLBCL) not otherwise - - specified (including DLBCL arising from indolent lymphoma), primary mediastinal large -- - B-cell lymphoma, high grade B-cell lymphoma, follicular lymphoma grade 3B * Follicular lymphoma (dose escalation only except for follicular lymphoma grade 3B) * Marginal zone lymphoma (dose escalation only) * Mantle cell lymphoma (dose escalation only) * CLL or SLL * Relapsed/refractory disease after at least 2 prior systemic regimens per standard of care or after autologous stem cell transplant * ECOG performance status of 0 or 1. * At least one measurable lesion per Lugano Classification (NHL); CLL subjects must meet iwCLL treatment criteria * Life expectancy ≥12 weeks

Exclusion criteria

* Prior anti-CD19 therapy including CD19-directed CAR T treatment or other CD19-directed antibody or cell therapy (e.g., NK cell). (Part 2 dose expansion only - prior approved CD19-directed CAR T therapy required) * History of primary central nervous system (CNS) lymphoma or presence of CNS metastases * Systemic anticancer therapy (including platinum-based chemotherapies and I/O therapies) or radiotherapy within 14 days of SC291 (28 days for biologics) * Autologous HSCT within 6 weeks of treatment with SC291 (or allogeneic HSCT at any time). * Active autoimmune disease or any other diseases requiring immunosuppressive therapy or corticosteroid therapy (defined as \>20 mg/day prednisone or equivalent). * History or presence of cardiac or CNS disorders as defined in the protocol

Design outcomes

Primary

MeasureTime frameDescription
Evaluate safety and tolerability of SC29124 monthsSafety and Tolerability: Proportion of subjects experiencing adverse events and dose-limiting toxicities

Secondary

MeasureTime frameDescription
Evaluate preliminary anti-tumor activity of SC29124 monthsPreliminary anti-tumor activity: Proportion of subjects with an objective response (including partial response or complete response)
Evaluate cellular kinetics and persistence of SC29124 monthsCellular kinetics-related parameters evaluated by CAR T cell copy number
Evaluate host immunogenicity to SC29124 monthsIncidence of anti-CD19-directed CAR antibodies

Countries

Australia, United States

Outcome results

None listed

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