Recent Updates
Recently added Catalysts

KTE-X19

Phase 2

Relapsed/Refractory Mantle Cell Lymphoma | Small molecule | Oncology |Gilead Sciences, Inc.|Last Updated: Jun 25, 2026

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

CONTROLLED
Total Trials1
Total Enrollment25

FDA Designations

No designations recorded

Clinical trial landscape

KTE-X19 · 1 trial · 2 indications

Phase 2 1
NCT06253663Study of KTE-X19 in Adult Japanese Participants With Relapsed/Refractory Mantle Cell Lymphoma or Relapsed/Refractory B-precursor Acute Lymphoblastic LeukemiaRelapsed/Refractory Mantle Cell Lymphoma
ACTIVE NOT_RECRUITING25 Analytics
PHASE2ACTIVE NOT_RECRUITING
Study of KTE-X19 in Adult Japanese Participants With Relapsed/Refractory Mantle Cell Lymphoma or Relapsed/Refractory B-precursor Acute Lymphoblastic Leukemia
Relapsed/Refractory Mantle Cell LymphomaUnlock trial analytics

Study Endpoints

Primary Endpoints

MCL Cohort: Objective Response Rate (ORR) Per Investigator Assessment
Up to 24 months

ORR is defined as the incidence of a complete remission (CR) or a partial remission (PR) per the Lugano Classification.

ALL Cohort: Overall Complete Remission (OCR) Rate
Up to 24 months

OCR rate is defined as the percentage of participants achieving CR/complete remission with incomplete hematologic recovery (CRi) per investigator assessment.

Secondary Endpoints

MCL Cohort: Duration of Response (DOR)
Up to 24 months
MCL Cohort: Best Objective Response (BOR)
Up to 24 months
MCL Cohort: Progression-Free Survival (PFS)
Up to 24 months
Unlock Study Endpoints

Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
MCL Cohort- KTE-X19EXPERIMENTALParticipants will receive cyclophosphamide 500 mg/m\^2/day intravenously (IV) and fludarabine 30 mg/m\^2/day IV lymphodepletion chemotherapy for 3 days followed by KTE-X19 administered intravenously at a target dose of 2 x 10\^6 anti-cluster of differentiation (CD)19 chimeric antigen receptor (CAR) T cells/kg on Day 0. For participants weighing ≥ 100 kg, a maximum flat dose of 2 x 10\^8 anti-CD19 CAR T cells will be administered.
ALL Cohort- KTE-X19EXPERIMENTALParticipants will receive cyclophosphamide 900 mg/m\^2/day intravenously (IV) for 1 day and fludarabine 25 mg/m\^2/day IV lymphodepletion chemotherapy for 3 days followed by KTE-X19 administered intravenously at a target dose of 1 x 10\^6 19 CAR T cells/kg on Day 0. For participants weighing ≥ 100 kg, a maximum flat dose of 1 x 10\^8 anti-CD19 CAR T cells will be administered.

Interventions

NameTypeDescription
KTE-X19DRUGA single infusion of chimeric antigen receptor (CAR) T cells
CyclophosphamideDRUGAdministered intravenously
FludarabineDRUGAdministered intravenously
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites9

Key Inclusion Criteria: MCL Cohort: * Pathologically confirmed MCL, with documentation of either overexpression of cyclin D1 or presence of t(11;14) * Up to 5 prior regimens for MCL. Prior therapy must have included: * Anthracycline-, bendamustine-, or high-dose cytarabine- containing chemother...

Countries:Japan
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

MEDIUMJun 25, 2026NCT06253663primaryCompletionDate: changed
MEDIUMJun 25, 2026NCT06253663primaryCompletionDate: changed
MEDIUMJun 25, 2026NCT06253663primaryCompletionDate: changed

Frequently asked questions about KTE-X19

What is KTE-X19 used for?

KTE-X19 is an investigational therapy being studied for relapsed/refractory mantle cell lymphoma and relapsed/refractory B-precursor acute lymphoblastic leukemia. It is currently in Phase 2 clinical development for these indications.

Who makes KTE-X19?

KTE-X19 is being developed by Gilead Sciences, Inc., which trades on the NASDAQ under the ticker GILD. The company is conducting clinical trials of KTE-X19 in oncology.

What phase is KTE-X19 in?

KTE-X19 is in Phase 2 clinical development. It is an investigational therapy and has not been approved by regulatory authorities. It is being studied in an active but not recruiting clinical trial.

What clinical trials is KTE-X19 in?

KTE-X19 is being studied in clinical trial NCT06253663, a Phase 2 study in adult Japanese participants with relapsed/refractory mantle cell lymphoma or relapsed/refractory B-precursor acute lymphoblastic leukemia. The trial is active but not recruiting and has an enrollment of 25 participants.

Is KTE-X19 being studied in Japan?

Yes, KTE-X19 is being studied in Japan. The Phase 2 clinical trial NCT06253663 enrolls adult Japanese participants aged 18 years and older with relapsed/refractory mantle cell lymphoma or relapsed/refractory B-precursor acute lymphoblastic leukemia.