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TNB-383B

Phase 1

Multiple Myeloma | Small molecule | Oncology |AbbVie Inc.|Last Updated: Feb 6, 2026

Target and mechanism

Molecular targetBCMA
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment220

FDA Designations

No designations recorded

Clinical trial landscape

TNB-383B · 1 trial · 1 indication

Phase 1 1
NCT03933735A Study of TNB-383B in Participants With Relapsed or Refractory Multiple MyelomaMultiple Myeloma
ACTIVE NOT_RECRUITING220 Analytics
PHASE1ACTIVE NOT_RECRUITING
A Study of TNB-383B in Participants With Relapsed or Refractory Multiple Myeloma
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Study Endpoints

Primary Endpoints

Number of Participants with Dose-limiting toxicities (DLT)
Day 21

A DLT is defined as a Treatment-emergent adverse event that is not unequivocally due to the participant's underlying malignancy or other extraneous cause.

Number of Participants with Adverse Events (AEs) and/or Serious Adverse Events (SAEs)
Up to 3 Years

An AE is defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have a causal relationship with this treatment. A serious adverse event (SAE) is an event that results in death, is life-threatening, requires or prolongs hospitalization, results in a congenital anomaly, persistent or significant disability/incapacity or is an important medical event that, based on medical judgment, may jeopardize the participant and may require medical or surgical intervention to prevent any of the outcomes listed above.

Maximum Observed Plasma Concentration of TNB-383B (Cmax)
Week 12

Cmax of TNB-383B.

Time to Cmax of TNB-383B (Tmax)
Week 12

Time to maximum plasma concentration (Tmax) of TNB-383B.

Area Under the Concentration Versus Time Curve from Time Zero to the Last Measurable Concentration (AUClast)
Week 12

Area under the concentration versus time curve from time zero to the last measurable concentration of TNB-383B.

Clearance (CL) of TNB-383B
Week 12

Clearance is defined the volume of plasma cleared of the drug per unit time.

Terminal Phase Elimination Rate Constant (Beta) of TNB-383B
Week 12

Apparent terminal phase elimination rate constant of TNB-383B.

Terminal Half-Life (t1/2) of TNB-383B
Week 12

Terminal half-life (t1/2) of TNB-383B.

Number of Participants with of Anti-drug Antibody (ADA)
Up to Month 48

The number of participants with anti-TNB-383B antibodies.

Secondary Endpoints

Objective Response Rate (ORR)
Up to Month 48
Percentage of Participants with Overall Survival (OS)
Up to 48 Months
Percentage of Participants with Progression-Free Survival (PFS)
Up to 48 Months
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Arm A: Dose EscalationEXPERIMENTALUp to 15 cohorts of participants receiving sequentially ascending doses of TNB-383B are planned until maximum tolerated dose is reached or recommended phase 2 dose is identified.
Arm B: Dose Expansion Dose AEXPERIMENTALAn expansion cohort will be enrolled at the recommended phase 2 Dose A.
Arm B: Dose Expansion Dose BEXPERIMENTALAn expansion cohort will be enrolled at the recommended phase 2 Dose B.
Arm E: Monotherapy Once Every 4 Weeks (Q4W)EXPERIMENTALAn expansion cohort will be enrolled at the recommended phase 2 Dose A.
Arm F: Monotherapy Dose CEXPERIMENTALAn expansion cohort will be enrolled at the recommended phase 2 Dose C.

Interventions

NameTypeDescription
TNB-383BDRUGIntravenous (IV) Injection
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites14

Inclusion Criteria: * Has received three or more prior lines of therapy with exposure to a proteasome inhibitor (PI), an immunomodulatory imide (IMiD) and an anti-CD38 monoclonal antibody. * Must have adequate bone marrow function as defined in the protocol. * Must have an estimated glomerular filt...

Countries:United StatesGermany
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Competitive Landscape -Multiple Myeloma 221 trials

Top 20 of 25 competitors

CompanyTickerTrialsLead PhaseDrugs
AbbVie, Inc.ABBV16PHASE3Pomalidomide, Dexamethasone, Venetoclax
Bristol-Myers Squibb CompanyBMY18PHASE3Iberdomide, Lenalidomide
Takeda Pharmaceutical Co. Ltd. Sponsored ADRTAK5PHASE3IGI, 10%
GSK plc Sponsored ADRGSK17PHASE3Belantamab mafodotin, Pomalidomide, Dexamethasone, Bortezomib
Johnson & JohnsonJNJ28PHASE3Talquetamab, Pomalidomide, Teclistamab, Elotuzumab, Dexamethasone
Regeneron Pharmaceuticals, Inc.REGN11PHASE3Linvoseltamab, Carfilzomib, Daratumumab, Dexamethasone, Pomalidomide
Pfizer Inc.PFE11PHASE3Elranatamab, Lenalidomide
Sanofi SA Sponsored ADRSNY17PHASE3Isatuximab, Dexamethasone, Pomalidomide, Montelukast, Paracetamol/ Acetaminophen
AstraZeneca PLCAZN5PHASE3AZD0120, Daratumumab, Carfilzomib, Dexamethasone, Bortezomib
Gilead Sciences, Inc.GILD3PHASE3Anitocabtagene Autoleucel, Cyclophosphamide, Fludarabine, Pomalidomide, Bortezomib
Karyopharm Therapeutics, Inc.KPTI6PHASE3Selinexor, Elotuzumab, Pomalidomide, Dexamethasone
Grifols, S.A. Sponsored ADR Class BGRFS1PHASE3Xembify
BioLineRX Ltd. Sponsored ADRBLRX1PHASE3BL-8040/kg, G-CSF
C4 Therapeutics, Inc.CCCC3PHASE2Cemsidomide, Dexamethasone
Cellectar Biosciences, Inc.CLRB1PHASE2Iopofosine I 131 single dose, Iopofosine I 131 fractionated dose
GeoVax Labs, Inc.GOVX1PHASE2COVID-19 Vaccine, Synthetic MVA-based SARS-CoV-2 Vaccine GEO-CM04S1
Autolus Therapeutics Plc Sponsored ADRAUTL1PHASE2AUTO CAR T cell therapy
Incyte CorporationINCY2PHASE1Ruxolitinib, Lenalidomide, Methylprednisolone
Moderna, Inc.MRNA2PHASE1mRNA-2808
BeOne Medicines Ltd. Sponsored ADRONC1PHASE1Sonrotoclax, Dexamethasone, Carfilzomib, Daratumumab, Pomalidomide
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Frequently asked questions about TNB-383B

What is TNB-383B used for?

TNB-383B is an investigational small molecule being developed for the treatment of multiple myeloma. It is currently being studied in patients with relapsed or refractory multiple myeloma, meaning the cancer has returned or has not responded to prior treatment.

What does TNB-383B target?

TNB-383B targets BCMA, a protein found on the surface of multiple myeloma cells. By targeting BCMA, the drug is designed to interfere with the growth and survival of these cancer cells, potentially offering a new treatment option for patients with relapsed or refractory disease.

Who is developing TNB-383B?

TNB-383B is being developed by AbbVie Inc., a biopharmaceutical company listed on the New York Stock Exchange under the ticker symbol ABBV. The company is conducting clinical research to evaluate the safety and efficacy of this investigational drug in patients with multiple myeloma.

What phase is TNB-383B in?

TNB-383B is currently in Phase 1 clinical development. It is an investigational drug, meaning it has not yet been approved by regulatory authorities. The ongoing Phase 1 study is designed to assess the drug's safety, tolerability, and preliminary activity in patients with relapsed or refractory multiple myeloma.

What clinical trials is TNB-383B in?

TNB-383B is being evaluated in a Phase 1 clinical trial with the identifier NCT03933735. This study, titled "A Study of TNB-383B in Participants With Relapsed or Refractory Multiple Myeloma," is actively enrolling participants in the United States and Germany. The trial is expected to enroll approximately 220 participants aged 18 years and older.

Is TNB-383B the same as any other drug?

TNB-383B is a unique investigational drug candidate developed by AbbVie. It is not known to be marketed under any other name. The drug is being studied specifically for its potential role in treating multiple myeloma, and no alternative names have been associated with it in clinical research.