Mifamurtide 4mg powder for dispersion for infusion vials
Requires a prescription from a doctor or prescriber
Mifamurtide is an immunomodulator with antitumor activity via activation of macrophages and monocytes.
Safety information for pregnancy and breastfeeding
Pregnancy
Always consult your doctor or midwife before taking any medicine during pregnancy or while breastfeeding. Source: DrugBank (CC BY-NC 4.0).
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Suspected adverse reactions reported for Mifamurtide
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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 Mifamurtide
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2 branded products available
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Mifamurtide 4mg powder for concentrate for dispersion for infusion vials
Therapeutically similar medicines
Similarity based on WHO Anatomical Therapeutic Chemical (ATC) classification and NHS BNF section grouping. Source data: NHS dm+d via TRUD (OGL v3.0), WHO ATC/DDD Index.
Clinical guidelines and formulary information
British National Formulary
Mifamurtide
Source: British National Formulary, NICE. Joint Formulary Committee. Contains public sector information licensed under the Open Government Licence v3.0.
NICE clinical guidance(1)
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
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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. BNF codes from NHS Business Services Authority (NHSBSA). 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.
Pharmacology and chemical data from DrugBank
Key facts
Drug status
Approved
Major interactions
None known
Half-life
0.40 hours
Mechanism
It was discovered that tumor necrosis could be promoted by factors released by the host’s immune system (e.
Food interactions
None known
Human targets
2 targets
Data: DrugBank · CC BY-NC 4.0
Pharmacokinetics at a glance
Absorption
4.86 h
Half-life
4 mg
Volume of distribution
4 mg
Metabolism
[L1203]…
Elimination
Clearance
4 mg
[L1203]
Following 4 mg intravenous infusion, the mean clearance rate of total mifamurtide in healthy subjects ranged from 565 to 569 mL/min .
[A31748]…
Pharmacokinetic data: DrugBank · CC BY-NC 4.0
Mifamurtide is marketed in Europe as Mepact for intravenous infusion. It is administered as an adjuvant therapy to postoperative combination chemotherapy in pediatric, adolescent or adult patients with high-grade, resectable, non-metastatic osteosarcoma after macroscopically complete surgical resection. In the US, it is currently under investigation that holds orphan drug status for the treatment of osteosarcoma [A31746].
Osteosarcoma is the most common primary malignant bone tumor that usually arises in the metaphyses of long bone in children and adolescents [A31744]. The standard therapy for osteosarcoma is comprised of macroscopic surgical resection and multi-agent chemotherapy consisting of doxorubicin, cisplatin, high-dose methotrexate with leucovorin rescue, and ifosfamide [A31744]. While about 90% of patients with newly diagnosed osteosarcoma may achieve complete remission from first-line therapies, the prognosis is still poor for patients with non-metastatic osteosarcoma with lower 5-year event-free survival. In a large, randomized, open-label, multicenter, phase III trial, the treatment of mifamurtide in conjunction with three- or four-drug combination chemotherapy (doxorubicin, cisplatin, and high-dose methotrexate with, or without, ifosfamide) was associated with significant improvement in survival rates and good tolerance [A31746]. The adverse events (AEs) associated with mifamurtide were generally mild to moderate in severity [A31748].
[L1203]
Known interactions with other medications. Always consult a healthcare professional.
Showing 50 of 133 interactions
[L1203]
In cases of suspected overdose, appropriate supportive care is recommended. Gastrointestinal toxicity associated with nausea, vomiting and loss of apetite from mifamurtide therapy is commonly observed.
Mifamurtide was not mutagenic and did not cause teratogenic effects in rats and rabbits.
Embryotoxic effects were observed only at maternal toxic levels. There is no evidence of mifamurtide generating harmful effects on male or female reproductive organs. Studies assessing reproductive function, perinatal toxicity and carcinogenicity have not been performed .
[L1203]
MDP stimulates the immune system by being recognized by different pattern recognition molecules and receptors, such as nucleotide-binding oligomerization domain (NOD) 2 receptor and toll-like receptor (TLR). Similarly, mifamurtide acts as a ligand for TRL4 and NOD2. Involved in the innate immunity, NOD2 is an intracellular MDP sensor that is primarily expressed on monocytes, dendritic cells, and macrophages. It possesses an amino-terminal caspase recruitment domain, which is required to trigger nuclear factor-kappaB (NF-κB) signaling [A31745]. Activation of intracellular signaling transduction pathway NF-κB can promote inflammation and release of antimicrobial peptides, resulting in the production of pro-inflammatory cytokines like interleukin-1β (IL-1β), interleukin-6 (IL-6), and TNF-α, and other molecules such as chemokines and adhesion molecules [A31745]. Upon binding to TLR4, mifamurtide may activate extracellular-signal-regulated kinase 1/2 (ERK 1/2), nuclear factor-kappa B (NF-κB) and adaptor protein (AP)-1 [A31744]. Mifamurtide may also activate NLRP3, which is an essential component of the inflammasome, a protein complex that promotes the cleavage of procaspase 1 into its active form. Active caspase 1 further activates pro-inflammatory cytokines like IL-1β [A31745]. Furthermore, mifamurtide induces the expression of adhesion molecules including lymphocyte function-associated antigen (LFA)-1, intracellular adhesion molecule (ICAM)-1, and human leukocyte antigen (HLA)-DR [A31744]. Mifamurtide may interact with interferon (IFN)-γ to up-regulate tumoricidal activity [A31744].
Upon intravenous administration, lipophilic mifamurtide is selectively phagocytosed by monocytes and macrophages followed by subsequent degradation of liposomal vesicles by the phagocytic cells. Then, MTP-PE is released into the cytosol where it interacts with Nod2 and activates the macrophages and monocytes [A31744]. Mifamurtide exerts a tumoricidal action via the same signalling pathway as MDP but with greater superiority because the lipophilic properties of MTP-PE cause higher cell uptake via passive transfer through the cytoplasmic membrane [A31744]. Incorporation of MTP-PE into liposomal structures allows better safety profile and more efficient distribution to the liver, spleen, and lungs after intravenous administration [A31744].
How the body processes this drug — absorption, distribution, metabolism, and elimination
[L1203]
Variability in AUC and Cmax is reported to be low .
[A31748]
[L1203]
[A31748]
There is no evidence of accumulation of L-MTP-PE or free MTP-PE (non-liposome-associated) .
[A31745]
[L1203]
The liposomes are mainly phagocytosed by the cells of the reticuloendothelial system (RES) .
[A31745]
[A31748]
[L1203]
Following 4 mg intravenous infusion, the mean clearance rate of total mifamurtide in healthy subjects ranged from 565 to 569 mL/min .
[A31748]
Proteins and enzymes this drug interacts with in the body
PMID:10835634 PMID:15809303 PMID:16622205 PMID:17292937 PMID:17478729 PMID:20037584 PMID:20711192 PMID:23880187 PMID:27022195 PMID:29038465 PMID:17803912
At the plasma membrane, cooperates with LY96 to mediate the innate immune response to bacterial lipopolysaccharide (LPS) .
PMID:27022195
Also involved in LPS-independent inflammatory responses triggered by free fatty acids, such as palmitate, and Ni(2+) .
PMID:20711192
Mechanistically, acts via MYD88, TIRAP and TRAF6, leading to NF-kappa-B activation, cytokine secretion and the inflammatory response .
PMID:10835634 PMID:21393102 PMID:27022195 PMID:36945827 PMID:9237759
Alternatively, CD14-mediated TLR4 internalization via endocytosis is associated with the initiation of a MYD88-independent signaling via the TICAM1-TBK1-IRF3 axis leading to type I interferon production .
PMID:14517278
In addition to the secretion of proinflammatory cytokines, initiates the activation of NLRP3 inflammasome and formation of a positive feedback loop between autophagy and NF-kappa-B signaling cascade .
PMID:32894580
In complex with TLR6, promotes inflammation in monocytes/macrophages by associating with TLR6 and the receptor CD86 .
PMID:23880187
Upon ligand binding, such as oxLDL or amyloid-beta 42, the TLR4:TLR6 complex is internalized and triggers inflammatory response, leading to NF-kappa-B-dependent production of CXCL1, CXCL2 and CCL9 cytokines, via MYD88 signaling pathway, and CCL5 cytokine, via TICAM1 signaling pathway .
PMID:23880187
In myeloid dendritic cells, vesicular stomatitis virus glycoprotein G but not LPS promotes the activation of IRF7, leading to type I IFN production in a CD14-dependent manner .
PMID:15265881 PMID:23880187
Required for the migration-promoting effects of ZG16B/PAUF on pancreatic cancer cells
PMID:12514169 PMID:12527755 PMID:12626759 PMID:15044951 PMID:15998797 PMID:27283905 PMID:27748583 PMID:31649195
Specifically activated by muramyl dipeptide (MDP), a fragment of bacterial peptidoglycan found in every bacterial peptidoglycan type .
PMID:12514169 PMID:12527755 PMID:12626759 PMID:12871942 PMID:15044951 PMID:15198989 PMID:15998797 PMID:22857257 PMID:23322906 PMID:27748583 PMID:36002575
NOD2 specifically recognizes and binds 6-O-phospho-MDP, the phosphorylated form of MDP, which is generated by NAGK .
PMID:36002575
6-O-phospho-MDP-binding triggers oligomerization that facilitates the binding and subsequent activation of the proximal adapter receptor-interacting RIPK2 .
PMID:11087742 PMID:17355968 PMID:21887730 PMID:23806334 PMID:28436939
Following recruitment, RIPK2 undergoes 'Met-1'- (linear) and 'Lys-63'-linked polyubiquitination by E3 ubiquitin-protein ligases XIAP, BIRC2, BIRC3 and the LUBAC complex, becoming a scaffolding protein for downstream effectors, triggering activation of the NF-kappa-B and MAP kinases signaling .
PMID:11087742 PMID:12514169 PMID:12626759 PMID:15198989 PMID:21887730 PMID:23322906 PMID:23806334 PMID:28436939
This in turn leads to the transcriptional activation of hundreds of genes involved in immune response .
PMID:15198989
Its ability to detect bacterial MDP plays a central role in maintaining the equilibrium between intestinal microbiota and host immune responses to control inflammation (By similarity). An imbalance in this relationship results in dysbiosis, whereby pathogenic bacteria prevail on commensals, causing damage in the intestinal epithelial barrier as well as allowing bacterial invasion and inflammation (By similarity). Acts as a regulator of appetite by sensing MDP in a subset of brain neurons: microbiota-derived MDP reach the brain, where they bind and activate NOD2 in inhibitory hypothalamic neurons, decreasing neuronal activity, thereby regulating satiety and body temperature (By similarity).
NOD2-dependent MDP-sensing of bacterial cell walls in the intestinal epithelial compartment contributes to sustained postnatal growth upon undernutrition (By similarity). Also plays a role in antiviral response by acting as a sensor of single-stranded RNA (ssRNA) from viruses: upon ssRNA-binding, interacts with MAVS, leading to activation of interferon regulatory factor-3/IRF3 and expression of type I interferon .
PMID:19701189
Also acts as a regulator of autophagy in dendritic cells via its interaction with ATG16L1, possibly by recruiting ATG16L1 at the site of bacterial entry .
PMID:20637199
NOD2 activation in the small intestine crypt also contributes to intestinal stem cells survival and function: acts by promoting mitophagy via its association with ATG16L1 (By similarity). In addition to its main role in innate immunity, also regulates the adaptive immune system by acting as regulator of helper T-cell and regulatory T-cells (Tregs) (By similarity).
Besides recognizing pathogens, also involved in the endoplasmic reticulum stress response: acts by sensing and binding to the cytosolic metabolite sphingosine-1-phosphate generated in response to endoplasmic reticulum stress, initiating an inflammation process that leads to activation of the NF-kappa-B and MAP kinases signaling .
PMID:27007849 PMID:33942347
May also be involved in NLRP1 activation following activation by MDP, leading to CASP1 activation and IL1B release in macrophages PMID:18511561
ATC L03AX15
Chemical identifiers
CAS, UNII, InChI Key and database cross-references
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Chemical identifiers
CAS, UNII, InChI Key and database cross-references
Linked compound data from DrugBank Open Data (CC BY-NC 4.0)
Mifamurtide
Additional database identifiers
ChemSpider
32700228
HUGO Gene Nomenclature Committee (HGNC)
HGNC:11850
GenAtlas
TLR4
GeneCards
TLR4
GenBank Gene Database
U93091
Guide to Pharmacology
1754
UniProt Accession
TLR4_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:5331
GeneCards
NOD2
Guide to Pharmacology
1763
UniProt Accession
NOD2_HUMAN
DrugBank citations
If you use DrugBank data in your research, please cite the following publications: