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ST-400 Investigational product

Phase 1/2

Transfusion Dependent Beta-thalassemia | Gene Therapies | Hematology |Sangamo Therapeutics, Inc.|Trials Updated: Dec 14, 2023

ST-400 Investigational product development status

Highest phase Phase 1/2
Registered trials 1 across 1 sponsor since Feb 2018

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDDMC
Total Trials1
Total Enrollment5

FDA Designations

No designations recorded

ST-400 Investigational product clinical trials

ST-400 Investigational product · 1 trial · 1 indication

Phase 1/2 1
NCT03432364A Study to Assess the Safety, Tolerability, and Efficacy of ST-400 for Treatment of Transfusion-Dependent Beta-thalassemia (TDT)Transfusion Dependent Beta-thalassemia
COMPLETED5 Analytics
PHASE1/PHASE2COMPLETED
A Study to Assess the Safety, Tolerability, and Efficacy of ST-400 for Treatment of Transfusion-Dependent Beta-thalassemia (TDT)
Transfusion Dependent Beta-thalassemiaUnlock trial analytics

Study Endpoints

Primary Endpoints

Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs) up to 156 Weeks After the ST-400 Infusion
Up to 156 weeks after the ST-400 infusion

Safety and tolerability assessed by number of participants with Adverse Events (AEs) and Serious Adverse Events (SAEs) up to 156 weeks after the ST-400 infusion

Secondary Endpoints

Clinical Laboratory Measurement of Hemoglobin (Hb) Fractions (A and F in g/dL)
Baseline, Weeks 26, 52, and 156 after ST-400 infusion
Clinical Laboratory Measurements of Percent (%) HbF
Baseline, Weeks 26, 52, and 156 after ST-400 infusion
Annualized Frequency of Packed RBC Transfusions
From Baseline (2 years prior to screening/consent), to ST-400 Infusion (Day 0), after hematopoietic reconstitution and up to 156 weeks (post ST-400 infusion)
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ST-400 Investigational productEXPERIMENTALST-400 Investigational product is composed of autologous CD34+ hematopoietic stem/progenitor cells that are genetically modified ex vivo at the erythroid-specific enhancer of the BCL11A gene

Interventions

NameTypeDescription
ST-400 Investigational productGENETICSingle dose of ST-400 following chemotherapy conditioning with busulfan
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Eligibility Criteria

Age Range18 Years to 40 Years
SexALL
Healthy VolunteersNo
Study Sites6

Inclusion Criteria: 1. Informed Consent 2. Clinical diagnosis of TDT with ≥ 8 documented RBC transfusion events per year on an annualized basis in the 2-years prior to screening 3. Confirmed beta-thalassemia diagnosis by molecular genetic testing 4. Clinically stable and eligible to receive conditi...

Countries:United States
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Frequently asked questions about ST-400 Investigational product

What is ST-400?

ST-400 is an investigational gene therapy developed by Sangamo Therapeutics for transfusion-dependent beta-thalassemia, a hematologic disorder requiring regular blood transfusions. It is a cell-based gene therapy product studied in a single Phase 1/2 clinical trial conducted in the United States. ST-400 has not been established as an approved treatment.

What is ST-400 used for in transfusion-dependent beta-thalassemia?

ST-400 was studied as a potential treatment for transfusion-dependent beta-thalassemia, a condition in which patients require chronic red blood cell transfusions. The Phase 1/2 trial enrolled adults 18 years and older of all sexes who were not healthy volunteers. The study assessed safety, tolerability, and efficacy in this patient population.

Who is developing ST-400?

ST-400 is developed by Sangamo Therapeutics, Inc., a biopharmaceutical company whose common stock trades under the ticker SGMOQ. Sangamo sponsored the clinical program evaluating ST-400 in transfusion-dependent beta-thalassemia.

What phase is ST-400 in?

ST-400 is in Phase 1/2 development. Its single clinical trial, NCT03432364, was a Phase 1/Phase 2 study that has been completed. ST-400 is an investigational gene therapy and is not an approved product; the completed early-stage study does not by itself establish approval status.

What clinical trials is ST-400 in?

ST-400 has been evaluated in one clinical trial, NCT03432364, titled a study to assess the safety, tolerability, and efficacy of ST-400 for treatment of transfusion-dependent beta-thalassemia. The trial was a completed Phase 1/Phase 2, uncontrolled, open-label study with 5 enrolled participants, conducted in the United States.

How many patients were enrolled in the ST-400 trial?

The ST-400 Phase 1/2 trial, NCT03432364, enrolled 5 participants. It was an uncontrolled study without randomization or double blinding, and it enrolled adults aged 18 years and older with transfusion-dependent beta-thalassemia in the United States. The trial has been completed.