Belantamab mafodotin 100mg powder for solution for infusion vials
Requires a prescription from a doctor or prescriber
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MHRA alerts for Belantamab mafodotin
Safety monitoring data
Yellow Card reports
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Data from the MHRA Yellow Card scheme. A reported reaction does not necessarily mean the medicine caused it. Contains public sector information licensed under the Open Government Licence v3.0.
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Suspected adverse reactions reported for Belantamab mafodotin
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2 branded products available
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Blenrep 100mg powder for concentrate for solution for infusion vials
Blenrep 100mg powder for concentrate for solution for infusion vials
Therapeutically similar medicines
Similarity is based on WHO Anatomical Therapeutic Chemical (ATC) classification and on a factual NHS dm+d therapeutic-grouping code prefix. Source data: NHS dm+d via TRUD (OGL v3.0), WHO ATC/DDD Index.
NHS prescribing volume and spending trends
Guidelines from the National Institute for Health and Care Excellence
NICE clinical guidance(3)
Belantamab mafodotin with pomalidomide and dexamethasone for previously treated multiple myeloma (TA1133)
Belantamab mafodotin with bortezomib and dexamethasone for previously treated multiple myeloma (TA1149)
Teclistamab for treating relapsed and refractory multiple myeloma after 3 or more treatments (TA1015)
Source: National Institute for Health and Care Excellence (NICE). Contains public sector information licensed under the Open Government Licence v3.0.
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Codes for healthcare professionals and prescribing systems
These codes are used by healthcare IT systems and prescribers to identify this medicine.
NHS UK identifiers
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SNOMED CT and dm+d codes from NHS TRUD (Technology Reference data Update Distribution), licensed under the Open Government Licence v3.0. ATC codes from the WHO Collaborating Centre for Drug Statistics Methodology (whocc.no).
Active and completed clinical studies from ClinicalTrials.gov
Source: ClinicalTrials.gov, a database of the U.S. National Library of Medicine (NLM), National Institutes of Health (NIH). Data accessed via ClinicalTrials.gov API v2. Trial information is provided for research purposes and does not constitute medical advice.
Academic studies and reviews for this medicine's active substance
Showing the 50 most relevant studies.
Reviews & meta-analyses: 18 · Randomised trials: 4 · 2019–2026
Showing the 50 most relevant studies, sorted by most relevant.
Abdelrahman Nanah, Samer Al Hadidi
JAP Academy Journal, 2023
Belantamab mafodotin is an antibody drug conjugate directed against B-cell maturation antigen and was approved by the Food and Drug Administration under accelerated approval for use in the US in August 2020 for adult patients with relapsed or refractory multiple myeloma who have received at least 4 prior therapies, including an anti-CD38 monoclonal antibody, a proteasome inhibitor, and an immunomodulatory drug. In November 2022 belantamab mafodotin was withdrawn from the US market after failure of a required confirmatory trial. In our review, we provide a systematic review on the use of belantamab mafodotin efficacy and safety in a real-world setting.
Abstract licence: CC BY 4.0
R. Hattin, H. Aboaid, D. Jones, et al.
Journal of Clinical Oncology, 2025
Joshua Richter, A. Nooka, P. Rodríguez-Otero, et al.
American Journal of Hematology, 2025
- Multiple Myeloma
- Antineoplastic Combined Chemotherapy Protocols
- Antibodies, Monoclonal, Humanized
Ahsun Rizwan Siddiqi, Tehrim Khan, Amna Zaheer, et al.
Journal of Clinical Oncology, 2026
Shahzaib Maqbool, Imran Khan, Arham Ihtesham, et al.
Journal of Clinical Oncology, 2025
Joshua Richter, M. Beksaç, Alessandro Corso, et al.
Blood, 2025
A. Suvannasankha, Benga Kazeem, Paul Macleod, et al.
Blood, 2025
S. Lonial, Hans C. Lee, A. Badros, et al.
The Lancet. Oncology, 2019
Vania Hungria, P. Robak, M. Hus, et al.
The Lancet. Oncology, 2025
- Multiple Myeloma
- Neoplasm Recurrence, Local
- Antineoplastic Combined Chemotherapy Protocols
I. Vaxman, J. Abeykoon, A. Dispenzieri, et al.
Blood Cancer Journal, 2021
- Multiple Myeloma
- Neoplasm Recurrence, Local
- Antibodies, Monoclonal, Humanized
Sources: aggregated from Europe PMC (EMBL-EBI), OpenAlex, Crossref, PubMed and other open scholarly databases. Retracted articles are excluded. Study information is provided for research purposes and does not constitute medical advice.
Pharmacology and chemical data from DrugBank
Key facts
Drug status
Approved
Major interactions
None known
Half-life
12 days
Mechanism
Belantamab mafodotin, or GSK2857916, is an afucosylated monoclonal antibody that…
Food interactions
None known
Human targets
1 target
Data: DrugBank · CC BY-NC 4.0
Pharmacokinetics at a glance
Absorption
2.5mg/k
[L15326]
Half-life
12 days
[L15326]
Protein binding
[A31470][A177074]
Volume of distribution
11 L
[L15326]
Metabolism
[L15326]
…
Elimination
[A31470][A177074]
…
Clearance
0.9 L
[L15326]
Pharmacokinetic data: DrugBank · CC BY-NC 4.0
Belantamab mafodotin was granted FDA accelerated approval on 5 August 2020 for the treatment of multiple myeloma;[L15326] however, its manufacturer began the process for withdrawal of the US marketing authorization in November 2022. In the meantime, belantamab mafodotin will be available for patients in the Risk Evaluation and Mitigation Strategy (REMS) program who can enrol in a compassionate use program.[L44236] In July of 2025, belantamab mafodotin was approved by Health Canada for a similar indication, but for use in combination with either [Dexamethasone] and [Bortezomib] or [Dexamethasone] and [Pomalidomide]. [L53673]
Later that year in October of 2025, belantamab was granded full approval by the FDA for the a similar indication to the Health Canada one. [L54331]
[L54321]
In Canada, the drug is approved for a similar indication in combination with either [Dexamethasone] and [Bortezomib] or [Dexamethasone] and [Pomalidomide], for the treatment of relapsed or refractory myeloma following at least one other therapy including [lenalidomide].
[L53673]
Known interactions with other medicines. Always consult a healthcare professional.
Showing 50 of 739 interactions
[L15326]
However, keratopathy was seen in 71% of patients.
[A216756][A216761][A216766][L15326]
BCMA is uniquely expressed on CD138-positive myeloma cells.[A216756] Targeting BCMA allows belantamab mafodotin to be highly selective in its delivery of MMAF to multiple myeloma cells.[A216756] Belantamab mafodotin binds to BCMA, is internalised into cells, and releases MMAF.[A216756]
The MMAF payload binds to tubulin, stopping the cell cycle at the DNA damage checkpoint between the G2 and M phases, resulting in apoptosis.[A216771]
How the body processes this drug — absorption, distribution, metabolism, and elimination
[L15326]
[L15326]
[A31470][A177074]
[L15326]
[L15326]
MMAF is expected to be metabolized by oxidation and demethylation, however further data is not readily available.
[A216781][A216776]
[A31470][A177074]
Monoclonal antibodies are generally not eliminated in the urine, and only a small amount is excreted in bile.
[A40006]
[L15326]
Proteins and enzymes this drug interacts with in the body
Proteins that transport this drug across cell membranes
PMID:10358072 PMID:15159445 PMID:17412826
Shows broad substrate specificity, can transport both organic anions such as bile acid taurocholate (cholyltaurine) and conjugated steroids (dehydroepiandrosterone 3-sulfate, 17-beta-glucuronosyl estradiol, and estrone 3-sulfate), as well as eicosanoids (prostaglandin E2, thromboxane B2, leukotriene C4, and leukotriene E4), and thyroid hormones (T4/L-thyroxine, and T3/3,3',5'-triiodo-L-thyronine) .
PMID:10358072 PMID:10601278 PMID:10873595 PMID:11159893 PMID:12196548 PMID:12568656 PMID:15159445 PMID:15970799 PMID:16627748 PMID:17412826 PMID:19129463 PMID:26979622
Can take up bilirubin glucuronides from plasma into the liver, contributing to the detoxification-enhancing liver-blood shuttling loop .
PMID:22232210
Involved in the clearance of endogenous and exogenous substrates from the liver .
PMID:10358072 PMID:10601278
Transports coproporphyrin I and III, by-products of heme synthesis, and may be involved in their hepatic disposition .
PMID:26383540
May contribute to regulate the transport of organic compounds in testes across the blood-testis-barrier (Probable). Can transport HMG-CoA reductase inhibitors (also known as statins), such as pravastatin and pitavastatin, a clinically important class of hypolipidemic drugs .
PMID:10601278 PMID:15159445 PMID:15970799
May play an important role in plasma and tissue distribution of the structurally diverse chemotherapeutic drug methotrexate .
PMID:23243220
May also transport antihypertension agents, such as the angiotensin-converting enzyme (ACE) inhibitor prodrug enalapril, and the highly selective angiotensin II AT1-receptor antagonist valsartan, in the liver .
PMID:16624871 PMID:16627748
Shows a pH-sensitive substrate specificity towards prostaglandin E2 and T4 which may be ascribed to the protonation state of the binding site and leads to a stimulation of substrate transport in an acidic microenvironment .
PMID:19129463
Hydrogencarbonate/HCO3(-) acts as the probable counteranion that exchanges for organic anions PMID:19129463
PMID:10779507 PMID:15159445 PMID:17412826
Shows broad substrate specificity, can transport both organic anions such as bile acid taurocholate (cholyltaurine) and conjugated steroids (17-beta-glucuronosyl estradiol, dehydroepiandrosterone sulfate (DHEAS), and estrone 3-sulfate), as well as eicosanoid leukotriene C4, prostaglandin E2 and L-thyroxine (T4) .
PMID:10779507 PMID:11159893 PMID:12568656 PMID:15159445 PMID:17412826 PMID:19129463
Hydrogencarbonate/HCO3(-) acts as the probable counteranion that exchanges for organic anions .
PMID:19129463
Shows a pH-sensitive substrate specificity towards sulfated steroids, taurocholate and T4 which may be ascribed to the protonation state of the binding site and leads to a stimulation of substrate transport in an acidic microenvironment .
PMID:19129463
Involved in the clearance of bile acids and organic anions from the liver .
PMID:22232210
Can take up bilirubin glucuronides from plasma into the liver, contributing to the detoxification-enhancing liver-blood shuttling loop .
PMID:22232210
Transports coproporphyrin I and III, by-products of heme synthesis, and may be involved in their hepatic disposition .
PMID:26383540
May contribute to regulate the transport of organic compounds in testes across the blood-testis-barrier (Probable). Can transport HMG-CoA reductase inhibitors (also known as statins) such as pitavastatin, a clinically important class of hypolipidemic drugs .
PMID:15159445
May play an important role in plasma and tissue distribution of the structurally diverse chemotherapeutic drugs methotrexate and paclitaxel .
PMID:23243220
May also transport antihypertension agents, such as the angiotensin-converting enzyme (ACE) inhibitor prodrug enalapril, and the highly selective angiotensin II AT1-receptor antagonist valsartan, in the liver PMID:16624871 PMID:16627748
PMID:10064732 PMID:11114332 PMID:16230346 PMID:7961706 PMID:9281595
Mediates ATP-dependent transport of glutathione and glutathione conjugates, leukotriene C4, estradiol-17-beta-o-glucuronide, methotrexate, antiviral drugs and other xenobiotics .
PMID:10064732 PMID:11114332 PMID:16230346 PMID:7961706 PMID:9281595
Confers resistance to anticancer drugs by decreasing accumulation of drug in cells, and by mediating ATP- and GSH-dependent drug export .
PMID:9281595
Hydrolyzes ATP with low efficiency .
PMID:16230346
Catalyzes the export of sphingosine 1-phosphate from mast cells independently of their degranulation .
PMID:17050692
Participates in inflammatory response by allowing export of leukotriene C4 from leukotriene C4-synthesizing cells (By similarity). Mediates ATP-dependent, GSH-independent cyclic GMP-AMP (cGAMP) export .
PMID:36070769
Thus, by limiting intracellular cGAMP concentrations negatively regulates the cGAS-STING pathway .
PMID:36070769
Exports S-geranylgeranyl-glutathione (GGG) in lymphoid cells and stromal compartments of lymphoid organs. ABCC1 (via extracellular transport) with GGT5 (via GGG catabolism) establish GGG gradients within lymphoid tissues to position P2RY8-positive lymphocytes at germinal centers in lymphoid follicles and restrict their chemotactic transmigration from blood vessels to the bone marrow parenchyma (By similarity).
Mediates basolateral export of GSH-conjugated R- and S-prostaglandin A2 diastereomers in polarized epithelial cells PMID:9426231
PMID:10220572 PMID:10421658 PMID:11500505 PMID:16332456
Mediates hepatobiliary excretion of mono- and bis-glucuronidated bilirubin molecules and therefore play an important role in bilirubin detoxification .
PMID:10421658
Also mediates hepatobiliary excretion of others glucuronide conjugates such as 17beta-estradiol 17-glucosiduronic acid and leukotriene C4 .
PMID:11500505
Transports sulfated bile salt such as taurolithocholate sulfate .
PMID:16332456
Transports various anticancer drugs, such as anthracycline, vinca alkaloid and methotrexate and HIV-drugs such as protease inhibitors .
PMID:10220572 PMID:11500505 PMID:12441801
Confers resistance to several anti-cancer drugs including cisplatin, doxorubicin, epirubicin, methotrexate, etoposide and vincristine PMID:10220572 PMID:11500505
PMID:10359813 PMID:11581266 PMID:15083066
Transports glucuronide conjugates such as bilirubin diglucuronide, estradiol-17-beta-o-glucuronide and GSH conjugates such as leukotriene C4 (LTC4) .
PMID:11581266 PMID:15083066
Transports also various bile salts (taurocholate, glycocholate, taurochenodeoxycholate-3-sulfate, taurolithocholate- 3-sulfate) (By similarity). Does not contribute substantially to bile salt physiology but provides an alternative route for the export of bile acids and glucuronides from cholestatic hepatocytes (By similarity). May contribute to regulate the transport of organic compounds in testes across the blood-testis-barrier (Probable).
Can confer resistance to various anticancer drugs, methotrexate, tenoposide and etoposide, by decreasing accumulation of these drugs in cells PMID:10359813 PMID:11581266
PMID:15791618 PMID:16332456 PMID:18985798 PMID:19228692 PMID:20010382 PMID:20398791 PMID:22262466 PMID:24711118 PMID:29507376 PMID:32203132
Transports taurine-conjugated bile salts more rapidly than glycine-conjugated bile salts .
PMID:16332456
Also transports non-bile acid compounds, such as pravastatin and fexofenadine in an ATP-dependent manner and may be involved in their biliary excretion PMID:15901796 PMID:18245269
PMID:2897240 PMID:35970996 PMID:8898203 PMID:9038218 PMID:35507548
Catalyzes the flop of phospholipids from the cytoplasmic to the exoplasmic leaflet of the apical membrane. Participates mainly to the flop of phosphatidylcholine, phosphatidylethanolamine, beta-D-glucosylceramides and sphingomyelins .
PMID:8898203
Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells PMID:2897240 PMID:35970996 PMID:9038218
ATC L01FX15
Chemical identifiers
CAS, UNII, InChI Key and database cross-references
Show
Chemical identifiers
CAS, UNII, InChI Key and database cross-references
Linked compound data from DrugBank Open Data (CC BY-NC 4.0)
Belantamab mafodotin
Additional database identifiers
Drugs Product Database (DPD)
27073
HUGO Gene Nomenclature Committee (HGNC)
HGNC:11913
GeneCards
TNFRSF17
Guide to Pharmacology
1889
UniProt Accession
TNR17_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:10959
GenAtlas
SLCO1B1
GeneCards
SLCO1B1
GenBank Gene Database
AF060500
GenBank Protein Database
5051630
Guide to Pharmacology
1220
UniProt Accession
SO1B1_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:10961
GeneCards
SLCO1B3
GenBank Gene Database
AJ251506
GenBank Protein Database
9187497
Guide to Pharmacology
1221
UniProt Accession
SO1B3_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:51
GenAtlas
ABCC1
GeneCards
ABCC1
GenBank Gene Database
L05628
GenBank Protein Database
1835659
Guide to Pharmacology
779
UniProt Accession
MRP1_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:53
GenAtlas
ABCC2
GeneCards
ABCC2
GenBank Gene Database
U63970
GenBank Protein Database
1764162
Guide to Pharmacology
780
UniProt Accession
MRP2_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:54
GenAtlas
ABCC3
GeneCards
ABCC3
GenBank Gene Database
AB010887
GenBank Protein Database
3132270
UniProt Accession
MRP3_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:42
GenAtlas
ABCB11
GeneCards
ABCB11
GenBank Gene Database
AF091582
GenBank Protein Database
3873243
Guide to Pharmacology
778
UniProt Accession
ABCBB_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:40
GenAtlas
ABCB1
GeneCards
ABCB1
GenBank Gene Database
M14758
GenBank Protein Database
307180
Guide to Pharmacology
768
UniProt Accession
MDR1_HUMAN
DrugBank citations
If you use DrugBank data in your research, please cite:
- DrugBank 6.02024Recommended citationKnox C., Wilson M., Klinger C.M., et alDrugBank 6.0: the DrugBank Knowledgebase for 2024Nucleic Acids Res. 2024 Jan 552(D1):D1265-D1275
- DrugBank 5.02018Wishart D.S., Feunang Y.D., Guo A.C., et alDrugBank 5.0: a major update to the DrugBank database for 2018Nucleic Acids Res. 2017 Nov 846(D1):D1074-D1082
- DrugBank 4.02014Law V., Knox C., Djoumbou Y., et alDrugBank 4.0: shedding new light on drug metabolismNucleic Acids Res. 2014 Jan 142(1):D1091-7
- DrugBank 3.02011Knox C., Law V., Jewison T., et alDrugBank 3.0: a comprehensive resource for 'omics' research on drugsNucleic Acids Res. 2011 Jan39(Database issue):D1035-41
- DrugBank 2.02008Wishart D.S., Knox C., Guo A.C., et alDrugBank: a knowledgebase for drugs, drug actions and drug targets.Nucleic Acids Research2008 Jan36(Database issue):D901-6
- DrugBank 1.02006Wishart D.S., Knox C., Guo A.C., et alDrugBank: a comprehensive resource for in silico drug discovery and exploration.Nucleic Acids Research2006 Jan 134(Database issue):D668-72