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JNJ-80948543

Phase 1

Lymphoma, Non-Hodgkin | Small molecule | Oncology |Johnson & Johnson|Last Updated: Aug 28, 2026

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials2
Total Enrollment186

FDA Designations

No designations recorded

Clinical trial landscape

JNJ-80948543 · 2 trials · 2 indications

Phase 1 2
NCT06660563A Study of JNJ-80948543 in Combination With Other CD3 T-Cell Engagers in Participants With Relapsed/Refractory B-Cell Non-Hodgkin Lymphoma (R/R B-Cell NHL)Lymphoma, Non-Hodgkin
ACTIVE NOT_RECRUITING19 Analytics
NCT05424822A Study of JNJ-80948543, a T-cell Redirecting CD79b x CD20 x CD3 Trispecific Antibody, in Participants With Non-Hodgkin Lymphoma (NHL) and Chronic Lymphocytic Leukemia (CLL)Lymphoma, Non-Hodgkin
ACTIVE NOT_RECRUITING167 Analytics
PHASE1ACTIVE NOT_RECRUITING
A Study of JNJ-80948543 in Combination With Other CD3 T-Cell Engagers in Participants With Relapsed/Refractory B-Cell Non-Hodgkin Lymphoma (R/R B-Cell NHL)
Lymphoma, Non-HodgkinUnlock trial analytics
PHASE1ACTIVE NOT_RECRUITING
A Study of JNJ-80948543, a T-cell Redirecting CD79b x CD20 x CD3 Trispecific Antibody, in Participants With Non-Hodgkin Lymphoma (NHL) and Chronic Lymphocytic Leukemia (CLL)
Lymphoma, Non-HodgkinUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants with Dose-limiting Toxicity (DLT)
Up to 1 year and 10 months

Number of participants with DLT will be reported. DLTs are defined as any of the treatment-related toxicities: any toxicity that would require discontinuation of treatment; Fatal toxicity; Non-hematologic toxicity (Grade 3 toxicity or higher with exceptions); and Hematologic Toxicity (Grade 4 neutrophil count decrease; Grade 4 febrile neutropenia; Grade 3 febrile neutropenia that does not recover with best supportive care within 7 days; Grade 4 platelet count decrease for \>=7 days or Grade \>3 with Grade \>=2 bleeding; Grade 4 anemia).

Number of Participants with Adverse Events (AEs)
Up to 1 year and 10 months

An AE is any untoward medical occurrence in a clinical study participant administered a pharmaceutical (investigational or non-investigational) product. An AE does not necessarily have a causal relationship with the intervention.

Number of Participants with AE by Severity
Up to 4 Years 3 months

Severity will be graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE). Severity scale ranges from Grade 1 (Mild) to Grade 4 (Life-threatening). Grade 1= Mild, Grade 2= Moderate, Grade 3= Severe, Grade 4= Life-threatening and Grade 5= Death related to adverse event. Cytokine release syndrome (CRS) and immune effector cell-associated neurotoxicity syndrome (ICANS) will be graded as per American Society for Transplantation and Cellular Therapy (ASTCT).

Secondary Endpoints

Serum Concentration of JNJ-80948543 and JNJ-75348780
Up to 1 year and 10 months
Area Under the Curve (AUCtau) for JNJ-80948543 and JNJ-75348780
Up to 1 year and 10 months
Maximum Serum Concentration (Cmax) for JNJ-80948543 and JNJ-75348780
Up to 1 year and 10 months
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
JNJ-80948543EXPERIMENTALParticipants will receive JNJ-80948543 in combination with JNJ-75348780 to determine the recommended phase 2 regimen (RP2R) in Part 1 (Dose escalation). JNJ-80948543 will be dosed in an escalation manner in combination with fixed doses of JNJ-75348780. In Part 2 (Dose expansion) participants will receive RP2R of JNJ-80948543 as determined in Part 1 in combination with JNJ-75348780.
Part A: Dose EscalationEXPERIMENTALParticipants will receive JNJ-80948543 either by subcutaneous (SC) or intravenous (IV) administration to determine the putative recommended Phase 2 dose (RP2D) dosing schedule(s) and route(s) of administration based on safety, pharmacokinetic, pharmacodynamic, and preliminary assessment of efficacy across several dose regimens.
Part B: Cohort ExpansionEXPERIMENTALParticipants will receive JNJ-80948543 by SC or IV administration.

Interventions

NameTypeDescription
JNJ-80948543DRUGJNJ-80948543 will be administered as subcutaneous (SC) or intravenous (IV) injection.
JNJ-75348780DRUGJNJ-75348780 will be administered as SC injection.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites11

Inclusion Criteria: * Histologic documentation of diffuse large B-cell lymphoma (DLBCL), including high-grade B-cell lymphoma and DLBCL arising from indolent lymphoma. All participants must have received at least 2 prior lines of therapy * Participants must have measurable disease as defined by the...

Countries:AustraliaSpainTaiwanUnited KingdomUnited StatesChinaDenmarkFranceIsraelJapanPoland
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Recent Changes (Last 90 Days)

LOWAug 28, 2026NCT05424822lastUpdatePostDate: changed
LOWAug 28, 2026NCT06660563lastUpdatePostDate: changed
LOWAug 28, 2026NCT05424822lastUpdatePostDate: changed
LOWAug 28, 2026NCT06660563lastUpdatePostDate: changed
LOWJul 31, 2026NCT05424822lastUpdatePostDate: changed
LOWJul 31, 2026NCT06660563lastUpdatePostDate: changed
LOWJul 31, 2026NCT05424822lastUpdatePostDate: changed
LOWJul 31, 2026NCT06660563lastUpdatePostDate: changed
LOWJul 6, 2026NCT05424822lastUpdatePostDate: changed
LOWJul 6, 2026NCT06660563lastUpdatePostDate: changed
LOWJul 6, 2026NCT05424822lastUpdatePostDate: changed
LOWJul 6, 2026NCT06660563lastUpdatePostDate: changed

Frequently asked questions about JNJ-80948543

What is JNJ-80948543 used for?

JNJ-80948543 is an investigational small molecule being developed for the treatment of non-Hodgkin lymphoma. It is also being studied in chronic lymphocytic leukemia. The drug is currently in Phase 1 clinical development and has not been approved by regulatory authorities.

What does JNJ-80948543 target?

JNJ-80948543 is a T-cell redirecting CD79b x CD20 x CD3 trispecific antibody. It targets CD79b, CD20, and CD3, which are proteins involved in B-cell signaling and T-cell activation. This mechanism is designed to redirect T-cells to attack B-cell malignancies.

Who makes JNJ-80948543?

JNJ-80948543 is being developed by Johnson & Johnson, a pharmaceutical company traded on the New York Stock Exchange under the ticker symbol JNJ. The company is conducting clinical trials to evaluate the drug's safety and efficacy in patients with certain blood cancers.

What phase is JNJ-80948543 in?

JNJ-80948543 is in Phase 1 clinical development. It is an investigational drug, meaning it has not yet been approved by the FDA or other regulatory agencies. The drug is being studied in early-stage trials to assess its safety, tolerability, and preliminary efficacy.

What clinical trials is JNJ-80948543 in?

JNJ-80948543 is being studied in two active Phase 1 clinical trials. NCT05424822 evaluates the drug as a monotherapy in patients with non-Hodgkin lymphoma and chronic lymphocytic leukemia. NCT06660563 studies the drug in combination with other CD3 T-cell engagers in patients with relapsed or refractory B-cell non-Hodgkin lymphoma.

Is JNJ-80948543 the same as a trispecific antibody?

Yes, JNJ-80948543 is a trispecific antibody. It is designed to bind to three different targets: CD79b, CD20, and CD3. This trispecific structure allows the drug to simultaneously engage B-cells and T-cells, potentially enhancing its anti-tumor activity in B-cell malignancies.