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FT522

Phase 1

Relapsed/Refractory B-Cell Lymphoma | Small molecule | Oncology |Fate Therapeutics, Inc.|Last Updated: Aug 22, 2025

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment20

FDA Designations

No designations recorded

Clinical trial landscape

FT522 · 1 trial · 1 indication

Phase 1 1
NCT05950334FT522 With Rituximab in Relapsed/Refractory B-Cell Lymphoma (FT522-101)Relapsed/Refractory B-Cell Lymphoma
COMPLETED20 Analytics
PHASE1COMPLETED
FT522 With Rituximab in Relapsed/Refractory B-Cell Lymphoma (FT522-101)
Relapsed/Refractory B-Cell LymphomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants with dose limiting toxicities (DLTs)
From Day 1 through Day 29 of Cycle 1

The number of participants experiencing ≥1 DLT will be reported.

Severity of DLTs
From Day 1 through Day 29 of Cycle 1

The severity of DLTs will be determined according to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE, v5.0).

Secondary Endpoints

Overall Response Rate (ORR)
Up to approximately 24 months
Duration of Response (DOR)
Up to approximately 18 months
Duration of Complete Response (DOCR)
Up to approximately 18 months
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Regimen AEXPERIMENTALParticipants receive FT522 in combination with rituximab (or a rituximab biosimilar approved by a local health authority) with chemotherapy.
Regimen BEXPERIMENTALParticipants receive FT522 in combination with rituximab (or a rituximab biosimilar approved by a local health authority) without chemotherapy.

Interventions

NameTypeDescription
FT522DRUGFT522 drug product is administered as an intravenous infusion on Days 1, 4 and 8 of a treatment cycle.
RituximabDRUGRituximab will be administered as an IV infusion on Day -4 of the treatment cycle.
CyclophosphamideDRUGCyclophosphamide will be administered as an IV infusion at a dose of 500 mg/m\^2 on Day -5, Day -4, and Day -3 of the treatment cycle.
FludarabineDRUGFludarabine will be administered as an IV infusion at a dose of 30 mg/m\^2 on Day -5, Day -4, and Day -3 of the treatment cycle.
BendamustineDRUGBendamustine will be administered as an IV infusion at a dose of 90 mg/m\^2 on Day -5 and Day -4 of the treatment cycle. Bendamustine may be administered as an alternative to cyclophosphamide/fludarabine.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites7

Inclusion Criteria: * Diagnosis of B-cell lymphoma (BCL) as: (1) histologically documented lymphomas expected to express CD19 and CD20, including Grades 1 to 3B follicular lymphoma (FL), marginal zone lymphoma (MZL), Waldenstrom macroglobulinemia (WM), mantle cell lymphoma (MCL), transformed indole...

Countries:United States
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Competitive Landscape -Cutaneous T-Cell Lymphoma 3 trials (matched to "Relapsed/Refractory B-Cell Lymphoma")

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Frequently asked questions about FT522

What is FT522 used for?

FT522 is an investigational small molecule being studied for the treatment of relapsed/refractory B-cell lymphoma. It is currently in Phase 1 clinical development and has not been approved by the FDA.

Who is developing FT522?

FT522 is being developed by Fate Therapeutics, Inc., a biopharmaceutical company traded on NASDAQ under the ticker FATE. The company is conducting clinical trials to evaluate the drug's safety and efficacy in patients with relapsed/refractory B-cell lymphoma.

What phase is FT522 in?

FT522 is in Phase 1 clinical development. A Phase 1 clinical trial has been completed, and the drug remains investigational. It has not received FDA approval and is still being evaluated for safety and tolerability.

What clinical trials is FT522 in?

FT522 has been studied in a Phase 1 clinical trial with the identifier NCT05950334, titled "FT522 With Rituximab in Relapsed/Refractory B-Cell Lymphoma (FT522-101)." This trial enrolled 20 participants in the United States and has been completed.

Is FT522 the same as any other drug?

FT522 is a distinct investigational drug candidate developed by Fate Therapeutics. No alternative names for FT522 have been disclosed in the clinical trial information.