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ADCLEC.syn1 CAR T cells

Phase 1

Acute Myeloid Leukemia | Monoclonal antibody | Oncology |Takeda Pharmaceutical Company Limited|Last Updated: Mar 10, 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
UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment40
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05748197A Study of ADCLEC.syn1 in People With Acute Myeloid LeukemiaPHASE1 RECRUITING 40Apr 18, 2024Apr 18, 2028Mar 10, 20267 United States
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Study Endpoints
Primary Endpoints
maximum tolerated dose (MTD)
2 years

Dose escalation of ADCLEC.syn1 CAR T cells will follow Bayesian optimal interval (BOIN) design to inform dose-escalation decisions and potential maximum tolerated dose (MTD) estimation. Patients will be enrolled in cohorts of 3.

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Study Design & Arms
AllocationNA
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
ADCLEC.syn1 CAR T cellsEXPERIMENTALThe dose escalation cohort size of 3 patients in each cohort will be infused with escalating doses of ADCLEC.syn1 CAR T cells to inform the RP2D. There are 4 planned flat-dose levels: 25 × 10\^6, 75 × 10\^6 , 225 × 10\^6 , and 450 × 10\^6 CAR T cells and 1 de-escalation dose: 10 × 10\^6 CAR T cells. After dose escalation, one or two dose levels will be selected for dose expansion cohort(s).Two to 7 days following completion of the conditioning chemotherapy, the frozen CAR T cells will be thawed and administered. Conditioning chemotherapy may occur either outpatient or inpatient, and T cell infusions will occur as inpatient. Up to approximately 12 additional patients each if two doses are selected or approximately 16 additional patients, if one dose is selected, will be treated in the dose expansion phase to determine RP2D.
Interventions
NameTypeDescription
ADCLEC.syn1 CAR T cellsBIOLOGICALThere are 4 planned flat-dose levels: 25 × 10\^6, 75 × 10\^6 , 225 × 10\^6 , and 450 × 10\^6 CAR T cells and 1 de-escalation dose: 10 × 10\^6 CAR T cells.
Conditioning chemotherapyDRUGFludarabine 30 mg/m2 daily for 3 days and cyclophosphamide 500 mg/m2 daily for 3 days.
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites7

Inclusion Criteria: 1. Age ≥18 years of age at the time of signing informed consent. 2. Patients must have R/R AML. The following disease status will be eligible for the study: a. Refractory AML is defined as failure to achieve a CR, CRh or CRi after one of the following regimens: i. At least o...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 24, 2026NCT05748197studyFirstPostDate: changed