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Belantamab

Phase 1

Multiple Myeloma | Monoclonal antibody | Oncology |GSK plc|Trials Updated: Aug 19, 2026

Belantamab development status

Highest phase Phase 1
Registered trials 2 across 1 sponsor since Feb 2023

Belantamab target and mechanism

Target class-Mab (Antibody)
ModalityMonoclonal antibody

Also known as Belantamab SC, GSK2857914

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLEDDMC
Total Trials2
Total Enrollment145

FDA Designations

No designations recorded

Belantamab clinical trials

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 338 trials

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

Frequently asked questions about Belantamab

What is belantamab used for?

Belantamab is an investigational monoclonal antibody being studied for the treatment of multiple myeloma, a cancer of plasma cells in the bone marrow. It is being evaluated both as a monotherapy and in combination with other treatments, as well as in a subcutaneous formulation compared with intravenous administration.

Who is developing belantamab?

Belantamab is being developed by GSK plc, which trades under the ticker GSK. GSK is running the clinical development program for the drug in multiple myeloma, including studies of both intravenous and subcutaneous formulations.

What phase is belantamab in?

Belantamab is in Phase 1 clinical development. It is investigational and has not been approved by the FDA. Two Phase 1 trials are listed, both currently active, with a combined planned enrollment of 145 participants across multiple countries.

What clinical trials is belantamab in?

Belantamab is being studied in two Phase 1 trials. NCT07742527 compares a subcutaneous belantamab formulation with intravenous belantamab in multiple myeloma patients receiving standard of care and is not yet recruiting. NCT05714839 is recruiting and evaluates belantamab as monotherapy and in combination treatments.

Is belantamab the same as belantamab SC?

Belantamab SC refers to the subcutaneous formulation of belantamab, so the two names point to the same drug candidate. The subcutaneous version is being tested in the Phase 1 trial NCT07742527, which compares it against intravenous belantamab in participants with multiple myeloma.

What does belantamab target?

Belantamab is a monoclonal antibody, an antibody-based therapeutic. It is being developed for multiple myeloma and studied as both monotherapy and in combination regimens, with a subcutaneous formulation also under evaluation in a Phase 1 comparison against intravenous dosing.