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Universal Donor TGFβi NK Cells

Phase 2

Neuroblastoma | Small molecule | Oncology |United Therapeutics Corporation|Last Updated: Mar 23, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment62
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06450041NANT 2021-01 Phase II STING (Sequential Temozolomide, Irinotecan, NK Cells and GD2 mAb) TrialPHASE2 RECRUITING 62Dec 16, 2024Dec 1, 2038Mar 23, 202613 United States
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Study Endpoints
Primary Endpoints
Best Overall Response Rate of Evaluable Patients
Baseline assessments from within 28 days before Day 1 on study and between days 12-24 of cycles 2, 4, and 6, and within two weeks after the last date of protocol therapy. Each cycle will be 21 days but may be extended to 28 days due to treatment delays.

The response evaluation is based on central review or site review (when central review is not available) of patient diagnostic assessments. Response is determined by the NANT response criteria v2.0 (https://doi.org/10.1002/pbc.26940). 1. Complete response 2. Partial response 3. Minor response 4. Stable response 5. Progressive disease 6. Early death from malignant disease 7. Early death from toxicity Evaluable response patients have received sufficient therapy (1) and have sufficient response evaluation data to assess best overall response (2) including patients in categories f and g 1. is defined as at least 75% of all therapeutic agents in course 1, or less than 75% in course 1 due to clinical signs of tumor progression or therapy related toxicity. 2. is defined as presence of a disease evaluation for each of the 3 disease parameters (bone, soft tissue, bone marrow) at one or more timepoints after enrollment. Best Overall Response Rate = (a+b+c)/ (a+b+c+d+e+f+g).

Secondary Endpoints
Proportion of Evaluable Participants with Grade 3 or Greater Hematologic Toxicities or Any Hematologic Toxicities Attributed to this therapy.
All toxicities from enrollment through 30 days following end of protocol therapy, an average of 6 months
Proportion of Evaluable of Participants with Grade 2 or Greater Non-Hematologic Toxicities or Any Non-Hematologic Toxicities Attributed to this therapy.
All toxicities from enrollment through 30 days following end of protocol therapy, an average of 6 months
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
TreatmentEXPERIMENTALPatients will be treated with chemoimmunotherapy (temozolomide, irinotecan, GM-CSF, and dinutuximab) plus UD TGFβi NK cells.
Interventions
NameTypeDescription
Universal Donor (UD) TGFβi NK CellsDRUGPatients will receive a dose of 1x108 UD TGFβi NK cells/kg per treatment cycle on day 8 of each cycle
TemozolomideDRUGEnteral or IV daily on days 1-5 of each cycle For patients ≥ 0.5 m2: 100 mg/m2/dose For patients \< 0.5 m2: 3.3 mg/kg/dose MAXIMUM dose = 200 mg
IrinotecanDRUG50mg/m2/dose IV daily on days 1-5 of each cycle
DinutuximabDRUG17.5mg/m2/dose IV daily on days 2-5 of each cycle
GM-CSFDRUG250mcg/m2/dose subcutaneous (preferred) or IV daily on days 6-12 of each cycle
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Eligibility Criteria
Age Range1 Year — 31 Years
SexALL
Healthy VolunteersNo
Study Sites13

Inclusion Criteria: * Patients must be ≥ 1 year and ≤31 years of age at the time of enrollment on the study. * Patients must have a diagnosis of neuroblastoma either by histologic verification of neuroblastoma and/or demonstration of tumor cells in the bone marrow with increased urinary catecholami...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 24, 2026NCT06450041studyFirstPostDate: changed