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Galcanezumab (LY 2951742) is a humanized IgG4 monoclonal antibody against the CGRP ligand. Galcanezumab can be used for migraine or cluster headaches research .
Ieramilimab (LAG525; IMP701) is a humanized IgG4 monoclonal antibody that binds to LAG-3, resulting in inhibition of LAG-3 interaction with MHC-II molecules .
Lebrikizumab is an IgG4 humanized monoclonal antibody that specifically binds to interleukin-13 (IL-13) and inhibits its function. Lebrikizumab can be used for the research of asthma .
Garadacimab (CSL312) is a first-in-class, fully human IgG4 monoclonal antibody targeting activated factor XII (FXIIa). Garadacimab has the potential for hereditary angioedema research .
Garetosmab (REGN 2477) is a fully human IgG4 monoclonal antibody that specifically inhibits activin A. Garetosmab can be used for fibrodysplasia ossificans progressiva (FOP) research .
Ibalizumab (TMB-355) is a humanised IgG4 monoclonal antibody that prevents HIV cell entry by binding to CD4 receptor. Ibalizumab has the potential for HIV-1 infection research .
Tralokinumab, a fully human IgG4 monoclonal antibody, specifically binds with high affinity to IL-13 alone, preventing its interaction with the receptor and subsequent downstream signalling. Tralokinumab can be used for the research of the atopic dermatitis (AD) .
Bepranemab (UCB 0107) is a humanized, full-length IgG4 monoclonal antibody that binds to a central tau epitope (amino acids 235-250). Bepranemab can be used for Alzheimer’s disease (AD) research .
Frovocimab (LY 3015014) is a humanized IgG4 monoclonal antibody (mAb) that neutralizes PCSK9. Frovocimab inhibits PCSK9 binding to LDL receptor (LDLR) while permitting the normal proteolytic cleavage of the bound intact PCSK9 .
Burfiralimab (hzVSF-v13) is a monoclonal IgG4 antibody against vimentin expressed on the surface of virus-infected cells, with broad-spectrum antiviral activity and anti-inflammatory effects against virus-induced inflammation. Burfiralimab can be used in severe COVID-19 studies .
Gemtuzumab ozogamicin is an antibody-drug conjugate (ADC) consisting of a humanized immunoglobulin (IgG4) antibody directed against CD33 that is conjugated to the cytotoxic drug Calicheamicin (HY-19609). Calicheamicin is a cytotoxic antibiotic. Gemtuzumab ozogamicin can be used for the research of acute myeloid leukemia (AML) .
Inotuzumab (Humanized Anti-CD22 Recombinant Antibody) is a humanized IgG4, κ antibody that targets human CD22. Inotuzumab can be linked to a toxic agent ozogamicin as an antibody-drug conjugate (ADC). Inotuzumab can be used for the research of acute lymphoblastic leukemia and non-Hodgkin lymphoma .
Sabatolimab (MBG453) is a high-affinity, humanized, IgG4 (S228P) antibody targeting TIM-3, an inhibitory receptor that regulates adaptive and innate immune responses. Sabatolimab is a potential immunosuppression agent that can target TIM-3 on immune and myeloid cells .
Tabalumab (LY2127399) is a human anti-BAFF (B-cell activating factor) monoclonal antibody (IgG4 type) with neutralising activity against membrane bound and soluble BAFF. Tabalumab can be used in studies of autoimmune diseases such as rheumatoid arthritis, renal failure and systemic lupus erythematosus .
Mirikizumab (LY3074828) is a humanized IgG4 monoclonal antibody targets the p19 subunit of interleukin 23. Mirikizumab can be used for the research of ulcerative colitis .
Tomaralimab (OPN-305) is a humanised anti-TLR2IgG4 monoclonal antibody. Tomaralimab has the potential for the research of Myelodysplastic Syndromes (MDS) .
Nofazinlimab (CS1003) is a humanised IgG4 anti-PD-1 monoclonal antibody. Nofazinlimab can be used for unresectable hepatocellular carcinoma (uHCC) research .
Evunzekibart (ATOR-1017) is an Fc-γ receptor conditional 4-1BB agonist and IgG4-type antibody. Evunzekibart can be used as monotherapy or in combination with anti-PD1 to exert anticancer activity.
Cemiplimab (Anti-Human PD-1) is a high-affinity programmed death receptor-1 (PD-1) monoclonal IgG4 antibody that blocks PD-1/PD-L1-mediated T-cell suppression. Cemiplimab is commonly used in squamous cell skin cancer research .
Crotedumab (REGN1193) is a fully human IgG4 monoclonal antibody that binds and inhibits glucagon receptor (GCGR), with a KD of 0.1 nM. Crotedumab can be used for the research of diabetes .
Inclacumab (Anti-Human selectin P Recombinant Antibody) is a human monoclonal IgG4 antibody selectively targets P-selectin with a Kd value of 9.9 nM. Inclacumab inhibits P-selectin glycoprotein ligand 1 (PSGL-1) mimetic peptide bind with P-selectin with an IC50 value of 1.9 μg/mL and strongly inhibits cell adhesion .
Ligufalimab (AK 117) is a humanized IgG4 anti-CD47 monoclonal antibody. Ligufalimab does not induce RBC hemagglutination, and induces phagocytosis. Ligufalimab shows anti-tumor activity .
Lerdelimumab (CAT-152) is an IgG4 human anti-TGF-β2 recombinant monoclonal antibody. Lerdelimumab can be used as an anti-scarring agent for glaucoma research .
Pucotenlimab (HX008) is a humanized immunoglobulin G4 (IgG4) anti programmed cell death protein 1 (anti-PD-1) monoclonal antibody. Pucotenlimab can be used for the research of tumor .
Tuvonralimab (PSB-205; QL1706) is a dual immune checkpoint blockade containing a mixture of anti-PD-1 IgG4 and anti-CTLA-4IgG1 antibodies, Iparomlimab and Tuvonralimab .
Axatilimab (SNDX-6352) is a humanized IgG4 antibody with high affinity to CSF-1R. Axatilimab can be used for the research of chronic graft versus host disease (cGVHD) and neoplastic diseases .
Efmarodocokin alfa is a fusion protein of human IL-22 and the IgG4 crystallizable fragment. Efmarodocokin alfa activates IL-22 signaling. Efmarodocokin alfa can be used for the research of severe COVID-19 pneumonia .
Gosuranemab (BMS-986168) is a humanised IgG4 anti-tau monoclonal antibody. Gosuranemab binds to human N-terminal tau residues 15-22. Gosuranemab has the potential for the research of alzheimer’s disease (AD) .
Modakafusp alfa (TAK-573) is a humanized, anti-CD38 IgG4 monoclonal antibody fused to 2 attenuated IFNα2b molecules. Modakafusp alfa can be used in the research of multiple myeloma .
Sintilimab (IBI308) is a fully human IgG4 monoclonal antibody that binds to PD-1, thereby blocking the interaction of PD-1 with its ligands (PD-L1 and PL-L2) and consequently helping to restore the endogenous antitumour T-cell response. Sintilimab can be used for the research of classical Hodgkin's lymphoma, non-small cell lung cancer and oesophageal cancer .
Natalizumab (Solution) is a recombinant, humanized IgG4 monoclonal antibody, binds to α4β1-integrin and blocks its interaction with vascular cell adhesion molecule-1 (VCAM-1). Natalizumab can be used for the treatment of relapsing remitting multiple sclerosis and Crohn's disease. Natalizumab is also the first targeted therapy which blocks an essential mechanism for lymphocyte entry to the CNS and thus prevents acute demyelinating relapses .
Emibetuzumab (LY2875358) is a humanized bivalent MET antibody (IgG4 type). Emibetuzumab shows high neutralization and internalization activities, resulting in inhibition of both HGF-dependent and HGF-independent MET pathway activation and tumor growth. Emibetuzumab can be used in study of cancer .
Semorinemab (RG 6100) is an anti-Tau humanized IgG4 monoclonal antibody, targets the N-terminal portion of the Tau protein (amino acid residues 6-23). Semorinemab binds with human Tau with a Kd value of 3.8 nM. Semorinemab can be used for the research of Alzheimer's Disease .
Pozelimab (REGN3918) is a fully human IgG4anti-C5 monoclonal antibody. Pozelimab binds to C5 and C5 variants with high affinity and blocks complement-mediated hemolysis. Pozelimab can be used for the research of complement-mediated diseases .
Sugemalimab is a fully human, full length, anti-programmed death ligand 1 (PD-L1) immunoglobulin G4 (IgG4) monoclonal antibody (mAb). Sugemalimab shows anticancer activities and can be used for non-small cell lung cancer research .
Andecaliximab is a recombinant chimeric IgG4 monoclonal antibody (mAb) targets matrix metalloproteinase 9 (MMP9). Andecaliximab shows the antifibrotic efficacy in idiopathic pulmonary fibrosis mouse models. Andecaliximab can be used for the research of gastric adenocarcinoma and idiopathic pulmonary fibrosis (IPF) .
Narsoplimab (OMS 721) is a high-affinity fully human immunoglobulin gamma 4 (IgG4) monoclonal antibody that binds MASP-2 and blocks lectin pathway activation. Narsoplimab can be used in research of hematopoietic stem-cell transplantation and SARS-CoV-2 .
Adebrelimab (SHR-1316) is a humanized IgG4 monoclonal PD-L1 (PD-1/PD-L1) antibody. Adebrelimab has promising antitumor activity in solid tumors including extensive-stage small-cell lung cancer (SCLC) .
Leronlimab (PRO 140) is a humanized IgG4anti-CCR5 monoclonal antibody. Leronlimab inhibits CCR5-mediated HIV-1 viral and lung metastasis in mouse tumor models. Leronlimab can be used for the research of HIV nonalcoholic steatohepatitis (NASH) and cancer .
Lorigerlimab (MGD019) is a bispecific IgG4 dual-affinity re-targeting antibody (DART). Lorigerlimab can block PD-1 and CTLA-4, and improves T-cell responses. Lorigerlimab can be used for research of metastatic castration-resistant prostate cancer (mCRPC) .
Gemtuzumab is a monoclonal IgG4-κ antibody targeting CD33 antigen, which present on leukemic myeloblasts of acute myeloid leukemia (AML). Gemtuzumab can be used for synthesis of antibody-drug conjugate (ADC), Gemtuzumab ozogamicin (HY-109539). Gemtuzumab ozogamicin consists of a cytotoxic derivative of Calicheamicin (a cytotoxic antibiotic), and a monoclonal antibody. Gemtuzumab ozogamicin can be used for the research of acute myeloid leukemia .
Eflapegrastim is a human IgG4 monoclonal antibody, is also a granulocyte colony-stimulating factor (G-CSF). Eflapegrastim targets to G-CSF receptor (c-Fms). Eflapegrastim stimulates proliferation and differentiation of neutrophil progenitor cells and maintains stable numbers of mature and functional neutrophils. Eflapegrastim also shortens the duration of neutropenia .
Itepekimab (REGN-3500) is an IgG4 monoclonal antibody against IL-33. Itepekimab reduced airway inflammation and related tissue damage in preliminary clinical studies. Itepekimab has potential effects in asthma, chronic obstructive pulmonary disease (COPD), and atopic dermatitis (AD) [4].
Pembrolizumab (anti-PD-1) is a humanized IgG4 antibody and PD-1 inhibitor. Pembrolizumab produces PD-1 blockade, preventing PD-L1 and PD-L2 from connecting to PD-1. This avoids the uncontrolled regulation of T cells on cells that normally express PD-1 .
TSR-033 is a high affinity human IgG4 antibody targeting LAG-3 (lymphocyte activation gene-3), a co-receptor associated with impaired T cell function and often co-expressed with PD-1, that enhances T cell function and PD-1 blocking activity in vitro and in vivo. TSR-033 has anti-tumor activity .
Volociximab (M200) is a chimeric human/murine IgG4 antibody IIA1 targeting integrin α5β1 (EC50=0.2 nM). Integrin α5β1 is a major fibronectin receptor involved in angiogenesis. Volociximab has antiangiogenic and antitumor activities and inhibits the proliferation of human umbilical vein vascular endothelial cells (HUVECs) .
Camrelizumab (SHR-1210) is a potent humanied high-affinity IgG4-κ monoclonal antibody (mAb) to PD-1. Camrelizumab binds PD-1 at a high affinity of 3 nM and inhibits the binding interaction of PD-1 and PD-L1 with an IC50 of 0.70 nM. Camrelizumab acts as anti-PD-1/PD-L1 agent and can be used for cancer research, including NSCLC, ESCC, Hodgkin lymphoma, and advanced HCC et,al .
Ixekizumab (LY2439821) is a humanized IgG4 monoclonal antibody that selectively binds and neutralizes interleukin IL-17A (KD<3 pM). Ixekizumab directly blocks IL-17A binding to IL-17RA (IL-17A receptor) but does not bind to other IL-17 family members. Ixekizumab is used for the research of moderate-to-severe plaque psoriasis .
Natalizumab is a recombinant, humanized IgG4 monoclonal antibody, binds to α4β1-integrin and blocks its interaction with vascular cell adhesion molecule-1 (VCAM-1). Natalizumab can be used for the treatment of relapsing remitting multiple sclerosis and Crohn's disease. Natalizumab is also the first targeted therapy which blocks an essential mechanism for lymphocyte entry to the CNS and thus prevents acute demyelinating relapses .
Zimberelimab (GLS-010) is a fully human IgG4 anti-PD-1 monoclonal antibody with an EC50 of 210 pM for human PD-1. Zimberelimab effectively blocks the binding of PD-L1 and PD-L2 to cell-surface PD-1 in CHO-S cells, with IC50 values of 580 pM and 670 pM, respectively. Zimberelimab shows antitumor activities, and can be used for various cancers research, including cervical cancer, non-small cell lung cancer and classical Hodgkin’s lymphoma .
Tebotelimab (MGD-013) is a humanized IgG4κ bispecific PD-1/LAG-3 dual-affinity re-targeting (DART) antibody. Tebotelimab binds cell-surface expressed PD-1 and LAG-3 with EC50s of 1.65 nM and 0.41 nM in NS0 cells, respectively. Tebotelimab blocks PD-1/PD-L1, PD-1/PD-L2 and LAG-3/HLA (MHC-II) interactions and PD-1 signaling. Tebotelimab restores exhausted T-cell responses and and enhances antitumour immunity .
Nadecnemab is an IgG4κ antibody targeting to GFRA3, glial cell derived neurotrophic factor family receptor alpha 3. Nadecnemab can be used for research of osteoarthritis of the knee/pain .
Lexatumumab (HGS-ETR 2) is a human agonistic TRAIL receptor 2 (TRAIL-R2, DR5, APO-2)IgG4κ type monoclonal antibody. Lexatumumab induces apoptosis in malignant mesothelioma. Lexatumumab can be used for malignant pleural mesothelioma (MPM) research .
Geptanolimab (CBT-501) is a humanized IgG4k monoclonal antibody against programmed death-1 (PD-1). Siplizumab inhibits the binding of PD-L1/L2 to PD-1 through a competitive action. Siplizumab can be used in research of cancer .
Iparomlimab is an anti-human PD-1/CD279/PDCD1IgG4κ antibody. Iparomlimab also targets to human monoclonal PSB103 γ4-chain, disulfided with human monoclonal PSB103 κ-chain to form a dimer. Iparomlimab can be used for Oncology research .
Cetrelimab (JNJ 63723283; JNJ 3283) is a human IgG4κ mAb targeting PD-1. Cetrelimab binds PD-1 (Kd=1.72 nM, HEK293) to block the interaction of PD-1 with PD-L1 and PD-L2 (IC50s=111.7 ng/mL and 138.6 ng/mL, respectively). Cetrelimab stimulates peripheral T cells, increases IFN-γ, IL-2, TNF-α level and inhibits tumor growth in vivo .
Galcanezumab (LY 2951742) is a humanized IgG4 monoclonal antibody against the CGRP ligand. Galcanezumab can be used for migraine or cluster headaches research .
Ieramilimab (LAG525; IMP701) is a humanized IgG4 monoclonal antibody that binds to LAG-3, resulting in inhibition of LAG-3 interaction with MHC-II molecules .
Lebrikizumab is an IgG4 humanized monoclonal antibody that specifically binds to interleukin-13 (IL-13) and inhibits its function. Lebrikizumab can be used for the research of asthma .
Garadacimab (CSL312) is a first-in-class, fully human IgG4 monoclonal antibody targeting activated factor XII (FXIIa). Garadacimab has the potential for hereditary angioedema research .
Garetosmab (REGN 2477) is a fully human IgG4 monoclonal antibody that specifically inhibits activin A. Garetosmab can be used for fibrodysplasia ossificans progressiva (FOP) research .
Tesnatilimab is a human IgG4 monoclonal antibody that acts on the immune activating receptor NKG2D and has potential immunomodulatory and anti-inflammatory activity. Tesnatilimab can be used in the study of inflammatory bowel disease (IBD) .
Ibalizumab (TMB-355) is a humanised IgG4 monoclonal antibody that prevents HIV cell entry by binding to CD4 receptor. Ibalizumab has the potential for HIV-1 infection research .
Tralokinumab, a fully human IgG4 monoclonal antibody, specifically binds with high affinity to IL-13 alone, preventing its interaction with the receptor and subsequent downstream signalling. Tralokinumab can be used for the research of the atopic dermatitis (AD) .
Bepranemab (UCB 0107) is a humanized, full-length IgG4 monoclonal antibody that binds to a central tau epitope (amino acids 235-250). Bepranemab can be used for Alzheimer’s disease (AD) research .
Bexmarilimab (FP-1305) is a potent humanized anti-CLEVER-1IgG4-antibody with an IC50 value of 4.51 nM. Bexmarilimab is capable of inducing a phenotypic M2 to M1 immune switch of tumor-associated macrophages. Bexmarilimab can be used in research of cancer .
Frovocimab (LY 3015014) is a humanized IgG4 monoclonal antibody (mAb) that neutralizes PCSK9. Frovocimab inhibits PCSK9 binding to LDL receptor (LDLR) while permitting the normal proteolytic cleavage of the bound intact PCSK9 .
Burfiralimab (hzVSF-v13) is a monoclonal IgG4 antibody against vimentin expressed on the surface of virus-infected cells, with broad-spectrum antiviral activity and anti-inflammatory effects against virus-induced inflammation. Burfiralimab can be used in severe COVID-19 studies .
Inotuzumab (Humanized Anti-CD22 Recombinant Antibody) is a humanized IgG4, κ antibody that targets human CD22. Inotuzumab can be linked to a toxic agent ozogamicin as an antibody-drug conjugate (ADC). Inotuzumab can be used for the research of acute lymphoblastic leukemia and non-Hodgkin lymphoma .
Sabatolimab (MBG453) is a high-affinity, humanized, IgG4 (S228P) antibody targeting TIM-3, an inhibitory receptor that regulates adaptive and innate immune responses. Sabatolimab is a potential immunosuppression agent that can target TIM-3 on immune and myeloid cells .
Tabalumab (LY2127399) is a human anti-BAFF (B-cell activating factor) monoclonal antibody (IgG4 type) with neutralising activity against membrane bound and soluble BAFF. Tabalumab can be used in studies of autoimmune diseases such as rheumatoid arthritis, renal failure and systemic lupus erythematosus .
Evinacumab (REGN1500) is a human anti-ANGPTL3 (angiopoietin-like protein 3) monoclonal antibody (IgG4 class antibody). Evinacumab reduces plasma lipids in dyslipidemic mice by blocking ANGPTL3. Evinacumab can be used in studies of homozygous familial hypercholesterolaemia (HoFH), refractory hypercholesterolaemia (both familial and non-familial) and severe hypertriglyceridaemia .
Mirikizumab (LY3074828) is a humanized IgG4 monoclonal antibody targets the p19 subunit of interleukin 23. Mirikizumab can be used for the research of ulcerative colitis .
Tomaralimab (OPN-305) is a humanised anti-TLR2IgG4 monoclonal antibody. Tomaralimab has the potential for the research of Myelodysplastic Syndromes (MDS) .
Nofazinlimab (CS1003) is a humanised IgG4 anti-PD-1 monoclonal antibody. Nofazinlimab can be used for unresectable hepatocellular carcinoma (uHCC) research .
Evunzekibart (ATOR-1017) is an Fc-γ receptor conditional 4-1BB agonist and IgG4-type antibody. Evunzekibart can be used as monotherapy or in combination with anti-PD1 to exert anticancer activity.
Cemiplimab (Anti-Human PD-1) is a high-affinity programmed death receptor-1 (PD-1) monoclonal IgG4 antibody that blocks PD-1/PD-L1-mediated T-cell suppression. Cemiplimab is commonly used in squamous cell skin cancer research .
Fasinumab (Anti-Human NGF) is a human IgG4 monoclonal antibody to nerve growth factor (NGF). Fasinumab can be used in acute sciatica and knee osteoarthritis (OA) studies .
Crotedumab (REGN1193) is a fully human IgG4 monoclonal antibody that binds and inhibits glucagon receptor (GCGR), with a KD of 0.1 nM. Crotedumab can be used for the research of diabetes .
Polzastobart (JTX-8064) is a humanized IgG4 monoclonal antagonist antibody that selectively binds LILRB2 and prevents it from binding its ligands, classical and non-classical MHC I molecules. Polzastobart enhances pro-inflammatory cytokine production in macrophages by blocking the ability of LILRB2 to bind HLA-A/B and/or HLA-G, a marker of immunotolerance on cancer cells. Polzastobart is a macrophage immune checkpoint inhibitor .
Inclacumab (Anti-Human selectin P Recombinant Antibody) is a human monoclonal IgG4 antibody selectively targets P-selectin with a Kd value of 9.9 nM. Inclacumab inhibits P-selectin glycoprotein ligand 1 (PSGL-1) mimetic peptide bind with P-selectin with an IC50 value of 1.9 μg/mL and strongly inhibits cell adhesion .
Ligufalimab (AK 117) is a humanized IgG4 anti-CD47 monoclonal antibody. Ligufalimab does not induce RBC hemagglutination, and induces phagocytosis. Ligufalimab shows anti-tumor activity .
Lerdelimumab (CAT-152) is an IgG4 human anti-TGF-β2 recombinant monoclonal antibody. Lerdelimumab can be used as an anti-scarring agent for glaucoma research .
Pucotenlimab (HX008) is a humanized immunoglobulin G4 (IgG4) anti programmed cell death protein 1 (anti-PD-1) monoclonal antibody. Pucotenlimab can be used for the research of tumor .
Letaplimab (IBI-188) is a human IgG4anti-CD47 monoclonal antibody. CD47 is overexpressed on cancer cells, it is a ligand for SIRPα. Letaplimab enhances tumor cell phagocytosis .
Tuvonralimab (PSB-205; QL1706) is a dual immune checkpoint blockade containing a mixture of anti-PD-1 IgG4 and anti-CTLA-4IgG1 antibodies, Iparomlimab and Tuvonralimab .
Axatilimab (SNDX-6352) is a humanized IgG4 antibody with high affinity to CSF-1R. Axatilimab can be used for the research of chronic graft versus host disease (cGVHD) and neoplastic diseases .
Efmarodocokin alfa is a fusion protein of human IL-22 and the IgG4 crystallizable fragment. Efmarodocokin alfa activates IL-22 signaling. Efmarodocokin alfa can be used for the research of severe COVID-19 pneumonia .
Gosuranemab (BMS-986168) is a humanised IgG4 anti-tau monoclonal antibody. Gosuranemab binds to human N-terminal tau residues 15-22. Gosuranemab has the potential for the research of alzheimer’s disease (AD) .
Urelumab, a fully human, non-ligand binding, CD137 agonist IgG4 monoclonal antibody, enhances T-cell and natural killer-cell antitumor activity, and may enhance cytotoxic activity of Rituximab (HY-P9913). Urelumab can be used for the research of diffuse large B-cell lymphoma (DLBCL), follicular lymphoma (FL), and other types of non-Hodgkin lymphoma (NHL) .
Feladilimab (Anti-ICOS/CD278 Reference Antibody (feladilimab); GSK3359609) is humanized IgG4 anti-ICOS agonist monoclonal antibody. Feladilimab binds to ICOS-expressing T cells. Feladilimab has the potential for the research of cancer .
Modakafusp alfa (TAK-573) is a humanized, anti-CD38 IgG4 monoclonal antibody fused to 2 attenuated IFNα2b molecules. Modakafusp alfa can be used in the research of multiple myeloma .
Sintilimab (IBI308) is a fully human IgG4 monoclonal antibody that binds to PD-1, thereby blocking the interaction of PD-1 with its ligands (PD-L1 and PL-L2) and consequently helping to restore the endogenous antitumour T-cell response. Sintilimab can be used for the research of classical Hodgkin's lymphoma, non-small cell lung cancer and oesophageal cancer .
Natalizumab (Solution) is a recombinant, humanized IgG4 monoclonal antibody, binds to α4β1-integrin and blocks its interaction with vascular cell adhesion molecule-1 (VCAM-1). Natalizumab can be used for the treatment of relapsing remitting multiple sclerosis and Crohn's disease. Natalizumab is also the first targeted therapy which blocks an essential mechanism for lymphocyte entry to the CNS and thus prevents acute demyelinating relapses .
Concizumab is an anti-TFPI monoclonal antibody (IgG4 type) that binds to the Kunitz-type protease inhibitor (KPI) 2 structural domain of TFPI, thereby blocking the interaction of this structural domain with the FXa active site. Concizumab can be used in the study of haemophilia .
Emibetuzumab (LY2875358) is a humanized bivalent MET antibody (IgG4 type). Emibetuzumab shows high neutralization and internalization activities, resulting in inhibition of both HGF-dependent and HGF-independent MET pathway activation and tumor growth. Emibetuzumab can be used in study of cancer .
Semorinemab (RG 6100) is an anti-Tau humanized IgG4 monoclonal antibody, targets the N-terminal portion of the Tau protein (amino acid residues 6-23). Semorinemab binds with human Tau with a Kd value of 3.8 nM. Semorinemab can be used for the research of Alzheimer's Disease .
Pozelimab (REGN3918) is a fully human IgG4anti-C5 monoclonal antibody. Pozelimab binds to C5 and C5 variants with high affinity and blocks complement-mediated hemolysis. Pozelimab can be used for the research of complement-mediated diseases .
Sugemalimab is a fully human, full length, anti-programmed death ligand 1 (PD-L1) immunoglobulin G4 (IgG4) monoclonal antibody (mAb). Sugemalimab shows anticancer activities and can be used for non-small cell lung cancer research .
Andecaliximab is a recombinant chimeric IgG4 monoclonal antibody (mAb) targets matrix metalloproteinase 9 (MMP9). Andecaliximab shows the antifibrotic efficacy in idiopathic pulmonary fibrosis mouse models. Andecaliximab can be used for the research of gastric adenocarcinoma and idiopathic pulmonary fibrosis (IPF) .
Narsoplimab (OMS 721) is a high-affinity fully human immunoglobulin gamma 4 (IgG4) monoclonal antibody that binds MASP-2 and blocks lectin pathway activation. Narsoplimab can be used in research of hematopoietic stem-cell transplantation and SARS-CoV-2 .
Adebrelimab (SHR-1316) is a humanized IgG4 monoclonal PD-L1 (PD-1/PD-L1) antibody. Adebrelimab has promising antitumor activity in solid tumors including extensive-stage small-cell lung cancer (SCLC) .
Leronlimab (PRO 140) is a humanized IgG4anti-CCR5 monoclonal antibody. Leronlimab inhibits CCR5-mediated HIV-1 viral and lung metastasis in mouse tumor models. Leronlimab can be used for the research of HIV nonalcoholic steatohepatitis (NASH) and cancer .
Lorigerlimab (MGD019) is a bispecific IgG4 dual-affinity re-targeting antibody (DART). Lorigerlimab can block PD-1 and CTLA-4, and improves T-cell responses. Lorigerlimab can be used for research of metastatic castration-resistant prostate cancer (mCRPC) .
Gemtuzumab is a monoclonal IgG4-κ antibody targeting CD33 antigen, which present on leukemic myeloblasts of acute myeloid leukemia (AML). Gemtuzumab can be used for synthesis of antibody-drug conjugate (ADC), Gemtuzumab ozogamicin (HY-109539). Gemtuzumab ozogamicin consists of a cytotoxic derivative of Calicheamicin (a cytotoxic antibiotic), and a monoclonal antibody. Gemtuzumab ozogamicin can be used for the research of acute myeloid leukemia .
Eflapegrastim is a human IgG4 monoclonal antibody, is also a granulocyte colony-stimulating factor (G-CSF). Eflapegrastim targets to G-CSF receptor (c-Fms). Eflapegrastim stimulates proliferation and differentiation of neutrophil progenitor cells and maintains stable numbers of mature and functional neutrophils. Eflapegrastim also shortens the duration of neutropenia .
Itepekimab (REGN-3500) is an IgG4 monoclonal antibody against IL-33. Itepekimab reduced airway inflammation and related tissue damage in preliminary clinical studies. Itepekimab has potential effects in asthma, chronic obstructive pulmonary disease (COPD), and atopic dermatitis (AD) [4].
Aselizumab (HuDreg-55) is an humanized IgG4 mAb against L-selectin. However, L-selectin (CD62L) is a cell adhesion molecule expressed on circulating neutrophils. It regulates migrating cells to chemotaxis towards the site of injury. Aselizumab may be account for a high rate of infections and leucopenia after truma .
Pembrolizumab (anti-PD-1) is a humanized IgG4 antibody and PD-1 inhibitor. Pembrolizumab produces PD-1 blockade, preventing PD-L1 and PD-L2 from connecting to PD-1. This avoids the uncontrolled regulation of T cells on cells that normally express PD-1 .
TSR-033 is a high affinity human IgG4 antibody targeting LAG-3 (lymphocyte activation gene-3), a co-receptor associated with impaired T cell function and often co-expressed with PD-1, that enhances T cell function and PD-1 blocking activity in vitro and in vivo. TSR-033 has anti-tumor activity .
Volociximab (M200) is a chimeric human/murine IgG4 antibody IIA1 targeting integrin α5β1 (EC50=0.2 nM). Integrin α5β1 is a major fibronectin receptor involved in angiogenesis. Volociximab has antiangiogenic and antitumor activities and inhibits the proliferation of human umbilical vein vascular endothelial cells (HUVECs) .
Camrelizumab (SHR-1210) is a potent humanied high-affinity IgG4-κ monoclonal antibody (mAb) to PD-1. Camrelizumab binds PD-1 at a high affinity of 3 nM and inhibits the binding interaction of PD-1 and PD-L1 with an IC50 of 0.70 nM. Camrelizumab acts as anti-PD-1/PD-L1 agent and can be used for cancer research, including NSCLC, ESCC, Hodgkin lymphoma, and advanced HCC et,al .
Ixekizumab (LY2439821) is a humanized IgG4 monoclonal antibody that selectively binds and neutralizes interleukin IL-17A (KD<3 pM). Ixekizumab directly blocks IL-17A binding to IL-17RA (IL-17A receptor) but does not bind to other IL-17 family members. Ixekizumab is used for the research of moderate-to-severe plaque psoriasis .
Atibuclimab, is a chimeric monoclonal antibody directed against CD14 and is composed of murine variable and human IgG4 Fc regions. Atibuclimab can be used for the research of amyotrophic lateral sclerosis . Atibuclimab attenuates LPS-induced symptoms and strongly inhibits LPS-induced proinflammatory cytokine release, while only delaying the release of the anti-inflammatory cytokines soluble TNF receptor type I and IL-1 receptor antagonist .
Natalizumab is a recombinant, humanized IgG4 monoclonal antibody, binds to α4β1-integrin and blocks its interaction with vascular cell adhesion molecule-1 (VCAM-1). Natalizumab can be used for the treatment of relapsing remitting multiple sclerosis and Crohn's disease. Natalizumab is also the first targeted therapy which blocks an essential mechanism for lymphocyte entry to the CNS and thus prevents acute demyelinating relapses .
Zimberelimab (GLS-010) is a fully human IgG4 anti-PD-1 monoclonal antibody with an EC50 of 210 pM for human PD-1. Zimberelimab effectively blocks the binding of PD-L1 and PD-L2 to cell-surface PD-1 in CHO-S cells, with IC50 values of 580 pM and 670 pM, respectively. Zimberelimab shows antitumor activities, and can be used for various cancers research, including cervical cancer, non-small cell lung cancer and classical Hodgkin’s lymphoma .
Tebotelimab (MGD-013) is a humanized IgG4κ bispecific PD-1/LAG-3 dual-affinity re-targeting (DART) antibody. Tebotelimab binds cell-surface expressed PD-1 and LAG-3 with EC50s of 1.65 nM and 0.41 nM in NS0 cells, respectively. Tebotelimab blocks PD-1/PD-L1, PD-1/PD-L2 and LAG-3/HLA (MHC-II) interactions and PD-1 signaling. Tebotelimab restores exhausted T-cell responses and and enhances antitumour immunity .
Ginisortamab (UCB6114) is a fully human IgG4P antiGremlin-1 monoclonal antibody. Ginisortamab has the potential for the research of gastrointestinal (GI) tumors .
Nadecnemab is an IgG4κ antibody targeting to GFRA3, glial cell derived neurotrophic factor family receptor alpha 3. Nadecnemab can be used for research of osteoarthritis of the knee/pain .
Rozanolixizumab (UCB7665), a humanized high-affinity anti-human neonatal Fc receptor (FcRn) monoclonal antibody (IgG4P), is used to the research of reducing pathogenic IgG in autoimmune and alloimmune diseases .
Lexatumumab (HGS-ETR 2) is a human agonistic TRAIL receptor 2 (TRAIL-R2, DR5, APO-2)IgG4κ type monoclonal antibody. Lexatumumab induces apoptosis in malignant mesothelioma. Lexatumumab can be used for malignant pleural mesothelioma (MPM) research .
Geptanolimab (CBT-501) is a humanized IgG4k monoclonal antibody against programmed death-1 (PD-1). Siplizumab inhibits the binding of PD-L1/L2 to PD-1 through a competitive action. Siplizumab can be used in research of cancer .
Iparomlimab is an anti-human PD-1/CD279/PDCD1IgG4κ antibody. Iparomlimab also targets to human monoclonal PSB103 γ4-chain, disulfided with human monoclonal PSB103 κ-chain to form a dimer. Iparomlimab can be used for Oncology research .
Cetrelimab (JNJ 63723283; JNJ 3283) is a human IgG4κ mAb targeting PD-1. Cetrelimab binds PD-1 (Kd=1.72 nM, HEK293) to block the interaction of PD-1 with PD-L1 and PD-L2 (IC50s=111.7 ng/mL and 138.6 ng/mL, respectively). Cetrelimab stimulates peripheral T cells, increases IFN-γ, IL-2, TNF-α level and inhibits tumor growth in vivo .
The IgG4 Fc is the constant region of the immunoglobulin heavy chain, which forms the backbone of antibodies crucial in humoral immunity. B lymphocytes produce glycoprotein antibodies that initiate clonal expansion upon antigen binding. IgG4 Fc Protein, Human (HEK293) is the recombinant human-derived IgG4 Fc protein, expressed by HEK293 , with tag free. The total length of IgG4 Fc Protein, Human (HEK293) is 228 a.a., with molecular weight of ~32.0 kDa.
CD64 protein, a high affinity receptor, mediates IgG effector functions, triggering antibody-dependent cellular cytotoxicity (ADCC). It interacts with IGHG1 and forms a signaling complex with FCERG1, contributing to immune responses. CD64 also interacts with FLNA, EPB41L2, LAT, PPL, HCK, and LYN to prevent degradation of FCGR1A and regulate immune function. CD64 Protein, Human (HEK293, His) is the recombinant human-derived CD64 protein, expressed by HEK293 , with C-6*His labeled tag. The total length of CD64 Protein, Human (HEK293, His) is 273 a.a., with molecular weight of 50-70 kDa.
