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Belantamab

Phase 1

Multiple Myeloma | Small molecule | Oncology |GSK plc|Last Updated: Aug 19, 2026

Target and mechanism

Target class-Mab (Antibody)
ModalitySmall molecule

Also known as Belantamab SC

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLEDDMC
Total Trials2
Total Enrollment145

FDA Designations

No designations recorded

Clinical trial landscape

Belantamab · 2 trials · 1 indication

Phase 1 2
NCT07742527A Study to Evaluate the Subcutaneous Belantamab (BCMAb) Formulation Versus Intravenous Belantamab in Participants With Multiple Myeloma While Treated With Standard of CareMultiple Myeloma
NOT YET_RECRUITING22 Analytics
NCT05714839A Study to Investigate the Safety and Efficacy of Belantamab for the Treatment of Multiple Myeloma When Used as Monotherapy and in Combination TreatmentsMultiple Myeloma
RECRUITING123 Analytics
PHASE1NOT YET_RECRUITING
A Study to Evaluate the Subcutaneous Belantamab (BCMAb) Formulation Versus Intravenous Belantamab in Participants With Multiple Myeloma While Treated With Standard of Care
Multiple MyelomaUnlock trial analytics
PHASE1RECRUITING
A Study to Investigate the Safety and Efficacy of Belantamab for the Treatment of Multiple Myeloma When Used as Monotherapy and in Combination Treatments
Multiple MyelomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Bioavailability of belantamab
Up to approximately 42 weeks
Maximum observed plasma concentration (Cmax) of belantamab
Up to approximately 42 weeks
Area under concentration-time curve (AUC) of belantamab
Up to approximately 42 weeks
Plasma concentration of belantamab
Up to approximately 42 weeks
Number of Participants with Adverse Events (AE)
Up to approximately 42 weeks
Number of participants with changes in laboratory parameters
Up to approximately 42 weeks
Number of participants with changes in vital signs
Up to approximately 42 weeks
Parts 1, 2 and 3: Number of Participants with any Adverse Event
Up to 52 months
Part 1 (Dose escalation cohort) and Part 2: Number of Participants with Dose Limiting Toxicities (DLTs)
Cycle 1 (Each cycle is of 28 days)
Part 1, 2 and 3: Number of Participants with Worst Case Grade Change from Baseline in Laboratory and Vital Sign Parameters
Up to 52 months
Part 2: Number of Participants with severity of ocular events by the Keratopathy Visual Acuity (KVA) scale
Up to 52 months
Part 2: Overall Response Rate (ORR)
Up to 52 months
Part 3: Very Good Partial Response and better rate (VGPR+)
Up to 52 months

VGPR+ is defined as the percentage of participants with a confirmed VGPR or better (i.e., VGPR, complete response, stringent complete response).

Secondary Endpoints

Number of participants with Anti-drug antibodies (ADA) against belantamab
Up to approximately 71 weeks
Titers of ADA against belantamab
Up to approximately 71 weeks
Part 1: Overall Response Rate (ORR)
Up to 52 months
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelCROSSOVER
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Belantamab SC Dose level (DL)1 /IV DL1/SC DL 2 /SC DL1EXPERIMENTALParticipants will receive Belantamab subcutaneous (SC) dose level 1 (DL1) +Recombinant Human Hyaluronidase PH20 (rHuPH20) in Period 1; followed by Belantamab intravenous (IV) DL1 in Period 2; followed by Belantamab SC DL2 + rHuPH20 in Period 3; further followed by Belantamab SC DL1 + rHuPH20 in Period 4. Dose level 1 is the lowest dose level.
Belantamab IV DL1 /SC DL1 /SC DL2 /SC DL1EXPERIMENTALParticipants will receive Belantamab IV DL1 in Period 1; followed by Belantamab SC DL1 + rHuPH20 in Period 2; followed by Belantamab SC DL2 + rHuPH20 in Period 3; further followed by Belantamab SC DL1 + rHuPH20 in Period 4 of the study. Dose level 1 is the lowest dose level.
Part 1: Dose escalation and expansion of belantamab monotherapyEXPERIMENTALBelantamab will be administered in participants with RRMM until progressive disease (PD)
Part 2: Belantamab and belantamab mafodotin (delivered as separate drugs) dose range findingEXPERIMENTALParticipants with RRMM will receive belantamab and belantamab mafodotin
Part 3: Belantamab +pomalidomide/dexamethasone in 2L+ RRMMEXPERIMENTALParticipants with RRMM will receive belantamab in combination with pomalidomide-dexamethasone backbone.
Part 1b: Optional belantamab mafodotinEXPERIMENTALParticipants enrolled in Part 1 and Part 2 will be dosed until PD after which they will have the option to receive treatment with single agent belantamab mafodotin.

Interventions

NameTypeDescription
Belantamab SCDRUGBelantamab will be administered via SC route.
Belantamab IVDRUGBelantamab will be administered via IV route.
Recombinant Human Hyaluronidase PH20 (rHuPH20)DRUGrHuPH20 will be administered via SC route.
Standard of careDRUGParticipants will receive standard of care: Lenalidomide and/or anti-CD38 mAb as maintenance therapy.
BelantamabDRUGBelantamab will be administered.
Belantamab mafodotinDRUGBelantamab mafodotin will be administered.
PomalidomideDRUGPomalidomide will be administered.
DexamethasoneDRUGDexamethasone will be administered.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo

Inclusion Criteria: Participants are eligible to be included in the study only if all of the following criteria apply: * Participants at the time of signing the Informed Consent Form (ICF) must be aged 18 years old or greater or are of the legal age of consent in the jurisdiction in which the stud...

Countries:United StatesArgentinaAustraliaBrazilChinaIsraelJapanPolandSouth AfricaSouth KoreaTaiwanTurkey (Türkiye)United Kingdom
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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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Recent Changes (Last 90 Days)

MEDIUMAug 20, 2026NCT05714839lastUpdatePostDate: changed
MEDIUMAug 20, 2026NCT05714839lastUpdatePostDate: changed
MEDIUMAug 20, 2026NCT05714839lastUpdatePostDate: changed
MEDIUMAug 20, 2026NCT05714839lastUpdatePostDate: changed
LOWAug 3, 2026NCT07742527NEW_TRIAL: changed
LOWAug 3, 2026NCT07742527NEW_TRIAL: changed
MEDIUMJul 10, 2026NCT05714839Enrollment: 152 → 123
MEDIUMJul 10, 2026NCT05714839Enrollment: 152 → 123

Frequently asked questions about Belantamab

What is Belantamab used for?

Belantamab is an investigational antibody being studied for the treatment of multiple myeloma. It is being evaluated as a monotherapy and in combination treatments. The drug is in Phase 1 clinical development and is not yet approved by regulatory authorities.

What does Belantamab target?

Belantamab is a monoclonal antibody, indicated by its -mab suffix. It is being studied for its activity against multiple myeloma, a cancer of plasma cells. The specific molecular target is not disclosed in the available clinical trial information.

Who is developing Belantamab?

Belantamab is being developed by GSK plc, a global biopharmaceutical company listed on the stock exchange under the ticker GSK. The company is conducting clinical trials to evaluate the safety and efficacy of the drug in patients with multiple myeloma.

What phase is Belantamab in?

Belantamab is currently in Phase 1 clinical development. There are two active Phase 1 trials, one recruiting participants and one not yet recruiting. No completed trials have been reported, and the drug remains investigational.

What clinical trials is Belantamab in?

Belantamab is being studied in two Phase 1 trials. NCT05714839 is recruiting 123 participants to evaluate the drug as monotherapy and in combinations for multiple myeloma. NCT07742527 is a planned study of 22 participants comparing subcutaneous and intravenous formulations, though it has not yet started recruiting.

Is Belantamab the same as Belantamab SC?

Yes, Belantamab SC is an alternative name for Belantamab. The SC designation refers to the subcutaneous formulation, which is being compared with the intravenous formulation in one of the ongoing clinical trials for multiple myeloma.