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NKX101 - CAR NK cell therapy

Phase 1

Relapsed/Refractory AML | Monoclonal antibody | Hematology |Nkarta, Inc.|Last Updated: Dec 27, 2024

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
UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment61
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04623944NKX101, Intravenous Allogeneic CAR NK Cells, in Adults With AML or MDSPHASE1 ACTIVE NOT_RECRUITING 61Sep 21, 2020Jul 1, 2039Dec 27, 20248 United States
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Study Endpoints
Primary Endpoints
Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]
30 days after last dose of NKX101

Incidence, nature, and severity of treatment related adverse events will be evaluated. An adverse event is any unfavorable and unintended sign including clinically significant abnormal laboratory findings, symptom or disease.

Response rate to NKX101 (for Part 2)
28 days from first dose of NKX101

Responses will be assessed per modified ELN criteria and will include complete and partial remission with and without varying degrees of hematologic recovery

Secondary Endpoints
Assessment of NKX101 half-life
28 days from first dose of NKX101
NKX101 duration of persistence
Followed up to 2 years after last dose of NKX101
Evaluation of host immune response against NKX101
Followed up to 2 years after last dose of NKX101
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
NKX101 - CAR NK cell therapyEXPERIMENTALAll subjects in Part 1 will receive lymphodepletion with fludarabine/cyclophosphamide followed by 3 or 2 (Regimen A or B, respectively) weekly doses of NKX101. Subjects in Part 2 will receive lymphodepletion with either fludarabine/cyclophosphamide or fludarabine/cytarabine (ara-C), or if the optional arm is opened, lymphodepletion with fludarabine/cyclophosphamide and decitabine, followed by 3 weekly doses of NKX101. Part 2: unrelated off-the-shelf donor derived NKX101 will be used.
Interventions
NameTypeDescription
NKX101 - CAR NK cell therapyBIOLOGICALNKX101 is an investigational allogeneic CAR NK product targeting NKG2D ligands on cancer cells. Part 2 will use the maximum tolerated dose (MTD) or recommended Phase 2 dose (RP2D) of NKX101 as determined in Part 1.
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites8

Inclusion Criteria: * General: * ECOG performance status ≤2 * Disease related: * For AML subjects: * Previously treated relapsed/refractory AML, including subjects with MRD+ disease * Received at most 3 lines of previous anti-leukemia therapy * For subjects with targetable fms-li...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT04623944primaryCompletionDate: changed
LOWMay 24, 2026NCT04623944studyFirstPostDate: changed