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SC291

Phase 1

Lupus Erythematosus | Monoclonal antibody | Immunology |Sana Biotechnology, Inc.|Last Updated: Nov 25, 2025

Development status

Highest phase Phase 1
Registered trials 2 across 1 sponsor since May 2023

Target and mechanism

Molecular targetCD19
ModalityMonoclonal antibody

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment7

FDA Designations

FAST_TRACK

Clinical trial landscape

SC291 · 2 trials · 8 indications

Phase 1 2
NCT06294236Study Evaluating SC291 in Subjects With Severe r/r B-cell Mediated Autoimmune Diseases (GLEAM)Lupus Erythematosus
ACTIVE NOT_RECRUITING7 Analytics
NCT05878184Study Evaluating SC291 in Subjects With r/r B-cell Malignancies (ARDENT)Non Hodgkin Lymphoma
ACTIVE NOT_RECRUITING16 Analytics
PHASE1ACTIVE NOT_RECRUITING
Study Evaluating SC291 in Subjects With Severe r/r B-cell Mediated Autoimmune Diseases (GLEAM)
Lupus ErythematosusUnlock trial analytics
PHASE1ACTIVE NOT_RECRUITING
Study Evaluating SC291 in Subjects With r/r B-cell Malignancies (ARDENT)
Non Hodgkin LymphomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Evaluate safety and tolerability of SC291
24 months

Safety and Tolerability: Proportion of subjects experiencing adverse events and dose-limiting toxicities

Secondary Endpoints

Evaluate preliminary clinical response to SC291
12 months
Evaluate preliminary clinical response to SC291 (LN and ERL Cohorts)
12 months
Evaluate preliminary clinical response to SC291 (LN Cohort)
12 months
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
LN CohortEXPERIMENTALSC291 with lymphodepleting therapy
ERL CohortEXPERIMENTALSC291 with lymphodepleting therapy
AAV CohortEXPERIMENTALSC291 with lymphodepleting therapy
SC291 Plus Chemotherapy RegimenEXPERIMENTALA conditioning chemotherapy regimen of fludarabine and cyclophosphamide will be administered followed by investigational treatment with SC291

Interventions

NameTypeDescription
SC291BIOLOGICALSC291 is an allogeneic CAR T cell therapy
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Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites5

Inclusion Criteria: 1. Age ≥18 and ≤75 2. For LN cohort: * Diagnosis of SLE based on the 2019 European League Against Rheumatism (EULAR)/American College of Rheumatology (ACR) * Biopsy-proven LN class III or IV, according to 2018 Revised International Society of Nephrology/Renal Pathology So...

Countries:United StatesAustralia
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Frequently asked questions about SC291

What is SC291 used for?

SC291 is an investigational CD19-targeted monoclonal antibody being studied for lupus erythematosus, including systemic lupus erythematosus, and for B-cell malignancies such as non Hodgkin lymphoma and chronic lymphocytic leukemia. It is in Phase 1 clinical development and has not been approved by the FDA.

What does SC291 target?

SC291 targets CD19, a protein found on B cells. By binding to CD19, the monoclonal antibody is designed to deplete or modulate B cells involved in autoimmune diseases like lupus and in B-cell malignancies. This mechanism is being evaluated in early-stage clinical trials.

Who makes SC291?

SC291 is being developed by Sana Biotechnology, Inc., a biopharmaceutical company traded on NASDAQ under the ticker SANA. The company is conducting Phase 1 clinical trials to evaluate the safety and efficacy of SC291 in patients with autoimmune diseases and B-cell malignancies.

What phase is SC291 in?

SC291 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by the FDA for any use. The drug has received Fast Track designation from the FDA, which is intended to expedite the development and review of therapies for serious conditions.

What clinical trials is SC291 in?

SC291 is being evaluated in two Phase 1 trials. NCT06294236, known as GLEAM, is studying SC291 in severe relapsed or refractory B-cell mediated autoimmune diseases, including lupus, with 7 participants. NCT05878184, known as ARDENT, is studying SC291 in relapsed or refractory B-cell malignancies, including non Hodgkin lymphoma, with 16 participants.

Is SC291 the same as any other drug?

SC291 is a distinct investigational monoclonal antibody developed by Sana Biotechnology. No alternative names for SC291 have been disclosed in the clinical trial records. It is being studied under the trial names GLEAM and ARDENT, which refer to the specific clinical studies, not to the drug itself.