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Last Updated: September 25, 2020

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Claims for Patent: 9,005,613

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Summary for Patent: 9,005,613
Title:Anti-mucin antibodies for early detection and treatment of pancreatic cancer
Abstract: Described herein are compositions and methods of use of anti-pancreatic cancer antibodies or fragments thereof, such as murine, chimeric, humanized or human PAM4 antibodies. The antibodies show novel and useful diagnostic characteristics, such as binding with high specificity to pancreatic and other cancers, but not to normal or benign pancreatic tissues and binding to a high percentage of early stage pancreatic cancers. Preferably, the antibodies bind to an epitope located within the second to fourth cysteine-rich domains of MUC5ac (amino acid residues 1575-2052) and are of use for the detection and diagnosis of early stage pancreatic cancer. In more preferred embodiments, the anti-pancreatic cancer antibodies can be used for immunoassay of serum samples, wherein the immunoassay detects a marker for early stage pancreatic cancer in serum. Most preferably, the serum is extracted with an organic phase, such as butanol, before immunoassay.
Inventor(s): Liu; Donglin (Kendall Park, NJ), Gold; David V. (Metuchen, NJ), Chang; Chien-Hsing (Downingtown, PA), Govindan; Serengulam V. (Summit, NJ), Goldenberg; David M. (Mendham, NJ)
Assignee: Immunomedics, Inc. (Morris Plains, NJ)
Application Number:14/242,138
Patent Claims:1. A method of treating pancreatic cancer comprising administering to an individual with pancreatic cancer a chimeric, humanized or human antibody that binds to an epitope located within the second to fourth cysteine-rich domains of MUC5ac (amino acid residues 1575-2052), wherein the antibody is conjugated to a therapeutic agent, wherein the antibody binds to 85% or more of pancreatic adenocarcinomas.

2. The method of claim 1, wherein the antibody or fragment thereof binds to the same epitope as or competes for binding to MUC5ac with an antibody that comprises the light chain variable region CDR sequences CDR1 (SASSSVSSSYLY, (SEQ ID NO:1); CDR2 (STSNLAS, SEQ ID NO:2); and CDR3 (HQWNRYPYT, SEQ ID NO:3); and the heavy chain variable region CDR sequences CDR1 (SYVLH, SEQ ID NO:4); CDR2 (YINPYNDGTQYNEKFKG, SEQ ID NO:5) and CDR3 (GFGGSYGFAY, SEQ ID NO:6).

3. The method of claim 1, wherein the therapeutic agent is selected from the group consisting of a radionuclide, an immunomodulator, a hormone, a hormone antagonist, an enzyme, an anti-sense oligonucleotide, siRNA, an enzyme inhibitor, a photoactive therapeutic agent, a cytotoxic agent, a drug, a toxin, an angiogenesis inhibitor and a pro-apoptotic agent.

4. The method of claim 3, wherein the radionuclide is selected from the group consisting of .sup.14C, .sup.13N, .sup.15O, .sup.32P, .sup.33P, .sup.47Sc, .sup.51Cr, .sup.57Co, .sup.58Co, .sup.59Fe, .sup.62Cu, .sup.67Cu, .sup.67Ga, .sup.67Ga, .sup.75Br, .sup.75Se, .sup.75Se, .sup.76Br, .sup.77As, .sup.77Br, .sup.80mBr, .sup.89Sr, .sup.90Y, .sup.95Ru, .sup.97Ru, .sup.99Mo, .sup.99mTc, .sup.103mRh, .sup.103Ru, .sup.105Rh, .sup.105Ru, .sup.107Hg, .sup.109Pd, .sup.109Pt, .sup.111Ag, .sup.111In, .sup.113In, .sup.119Sb, .sup.121mTe, .sup.122mTe, .sup.125I, .sup.125mTe, .sup.126I, .sup.131I, .sup.133I, .sup.142Pr, .sup.143Pr, .sup.149Pm, .sup.152Dy, .sup.153Sm, .sup.161Ho, .sup.161Tb, .sup.165Tm, .sup.166Dy, .sup.166Ho, .sup.167Tm, .sup.168Tm, .sup.169Er, .sup.169Yb, .sup.177Lu, .sup.186Re, .sup.188Re, .sup.189mOs, .sup.189Re, .sup.192Ir, .sup.194Ir, .sup.197Pt, .sup.198Au, .sup.199Au, .sup.199Au, .sup.201Tl, .sup.203Hg, .sup.211At, .sup.211Bi, .sup.211Pb, .sup.212Bi, .sup.212Pb, .sup.213Bi, .sup.215Po, .sup.217At, .sup.219Rn, .sup.221Fr, .sup.223Ra, .sup.224Ac, .sup.225Ac, .sup.255Fm or Th.sup.227.

5. The method of claim 4, wherein the radionuclide is .sup.90Y.

6. The method of claim 3, wherein the drug is selected from the group consisting of 5-fluorouracil, afatinib, aplidin, azaribine, anastrozole, anthracyclines, axitinib, AVL-101, AVL-291, bendamustine, bleomycin, bortezomib, bosutinib, bryostatin-1, busulfan, calicheamycin, camptothecin, carboplatin, 10-hydroxycamptothecin, carmustine, celecoxib, chlorambucil, cisplatinum (CDDP), Cox-2 inhibitors, irinotecan (CPT-11), SN-38, carboplatin, cladribine, camptothecans, crizotinib, cyclophosphamide, cytarabine, dacarbazine, dasatinib, dinaciclib, docetaxel, dactinomycin, daunorubicin, doxorubicin, 2-pyrrolinodoxorubicine (2PDOX), pro-2PDOX, cyano-morpholino doxorubicin, doxorubicin glucuronide, epirubicin glucuronide, erlotinib, estramustine, epipodophyllotoxin, entinostat, estrogen receptor binding agents, etoposide (VP16), etoposide glucuronide, etoposide phosphate, exemestane, fingolimod, floxuridine (FUdR), 3',5'-O-dioleoyl-FudR (FUdR-dO), fludarabine, flutamide, farnesyl-protein transferase inhibitors, flavopiridol, fostamatinib, ganetespib, GDC-0834, GS-1101, gefitinib, gemcitabine, hydroxyurea, ibrutinib, idarubicin, idelalisib, ifosfamide, imatinib, L-asparaginase, lapatinib, lenolidamide, leucovorin, LFM-A13, lomustine, mechlorethamine, melphalan, mercaptopurine, 6-mercaptopurine, methotrexate, mitoxantrone, mithramycin, mitomycin, mitotane, navelbine, neratinib, nilotinib, nitrosurea, olaparib, plicomycin, procarbazine, paclitaxel, PCI-32765, pentostatin, PSI-341, raloxifene, semustine, sorafenib, streptozocin, SU11248, sunitinib, tamoxifen, temazolomide, transplatinum, thalidomide, thioguanine, thiotepa, teniposide, topotecan, uracil mustard, vatalanib, vinorelbine, vinblastine, vincristine, vinca alkaloids and ZD1839.

7. The method of claim 3, wherein the toxin is elected from the group consisting of ricin, abrin, alpha toxin, saporin, ribonuclease (RNase), DNase I, Staphylococcal enterotoxin-A, pokeweed antiviral protein, gelonin, diphtheria toxin, Pseudomonas exotoxin, and Pseudomonas endotoxin.

8. The method of claim 3, wherein the immunomodulator is selected from the group consisting of a cytokine, a stem cell growth factor, a lymphotoxin, a hematopoietic factor, a colony stimulating factor (CSF), an interferon (IFN), erythropoietin, thrombopoietin tumor necrosis factor (TNF), granulocyte-colony stimulating factor (G-CSF), granulocyte macrophage-colony stimulating factor (GM-CSF), interferon-.alpha., interferon-.beta., interferon-.gamma., interferon-.lamda., human growth hormone, N-methionyl human growth hormone, bovine growth hormone, parathyroid hormone, thyroxine, insulin, proinsulin, relaxin, prorelaxin, follicle stimulating hormone (FSH), thyroid stimulating hormone (TSH), luteinizing hormone (LH), hepatic growth factor, prostaglandin, fibroblast growth factor, prolactin, placental lactogen, OB protein, tumor necrosis factor-.alpha., tumor necrosis factor-.beta., mullerian-inhibiting substance, mouse gonadotropin-associated peptide, inhibin, activin, vascular endothelial growth factor, integrin, thrombopoietin (TPO), NGF-.beta., platelet-growth factor, TGF-.alpha., TGF-.beta., insulin-like growth factor-I, insulin-like growth factor-II, erythropoietin (EPO), macrophage-CSF (M-CSF), IL-1, IL-1.alpha., IL-2, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-11, IL-12, IL-13, IL-14, IL-15, IL-16, IL-17, IL-18, IL-21, IL-23, IL-25, LIF, FLT-3, angiostatin, thrombospondin, endostatin, and lymphotoxin.

9. The method of claim 3, wherein the tyrosine kinase inhibitor is selected from the group consisting of canertinib, dasatinib, erlotinib, gefitinib, imatinib, lapatinib, leflunomide, nilotinib, pazopanib, semaxinib, sorafenib, sunitinib, sutent, vatalanib, PCI-32765 (ibrutinib), PCI-45292, GDC-0834, LFM-A13 and RN486.

10. The method of claim 1, further comprising administering at least one other therapeutic agent to the individual, wherein the at least one other therapeutic agent is selected from the group consisting of a second antibody, a second antigen-binding antibody fragment, an immunoconjugate, an immunomodulator, a hormone, a hormone antagonist, an enzyme, an anti-sense oligonucleotide, siRNA, an enzyme inhibitor, a photoactive therapeutic agent, a cytotoxic agent, a drug, a toxin, an angiogenesis inhibitor and a pro-apoptotic agent.

11. The method of claim 10, wherein the second antibody, second antigen-binding antibody fragment, or immunoconjugate binds to an antigen selected from the group consisting of CA19.9, DUPAN2, SPAN1, Nd2, B72.3, CC49, Le.sup.a, Le(y), CEACAM5, CEACAM6, CSAp, MUC1, MUC2, MUC3, MUC4, MUC5ac, MUC16, MUC17, HLA-DR, CD40, CD74, CD138, HER2/neu, EGFR, EGP-1, EGP-2, VEGF, PlGF, insulin-like growth factor, tenascin, platelet-derived growth factor, IL-6, bcl-2, K-ras, p53 and cMET.

12. The method of claim 10, wherein the second antibody, second antigen-binding antibody fragment, or immunoconjugate is selected from the group consisting of hR1 (anti-IGF-1R), hPAM4 (anti-MUC5ac), hIMMU-31 (anti-AFP), hLL1 (anti-CD74), hMu-9 (anti-CSAp), hL243 (anti-HLA-DR), hL243 IgG4P (anti-HLA-DR), hMN-14 (anti-CEACAM5), hMN-15 (anti-CEACAM6), hRS7 (anti-EGP-1 or anti-TROP-2), hMN-3 (anti-CEACAM6), Ab124 (anti-CXCR4) and Ab125 (anti-CXCR4).

13. The method of claim 10, wherein the radionuclide is selected from the group consisting of .sup.14C, .sup.13N, .sup.15O, .sup.32P, .sup.33P, .sup.47Sc, .sup.51Cr, .sup.57Co, .sup.58Co, .sup.59Fe, .sup.62Cu, .sup.67Cu, .sup.67Ga, .sup.67Ga, .sup.75Br, .sup.75Se, .sup.75Se, .sup.76Br, .sup.77As, .sup.77Br, .sup.80mBr, .sup.89Sr, .sup.90Y, .sup.95Ru, .sup.97Ru, .sup.99Mo, .sup.99mTc, .sup.103mRh, .sup.103Ru, .sup.105Rh, .sup.105Ru, .sup.107Hg, .sup.109Pd, .sup.109Pt, .sup.111Ag, .sup.111In, .sup.113mIn, .sup.119Sb, .sup.121mTe, .sup.122mTe, .sup.125I, .sup.125mTe, .sup.126I, .sup.131I, .sup.133I, .sup.142Pr, .sup.143Pr, .sup.149Pm, .sup.152Dy, .sup.153Sm, .sup.161Ho, .sup.161Tb, .sup.165Tm, .sup.166Dy, .sup.166Ho, .sup.167Tm, .sup.168Tm, .sup.169Er, .sup.169Yb, .sup.177Lu, .sup.186Re, .sup.188Re, .sup.189mOs, .sup.189Re, .sup.192Ir, .sup.194Ir, .sup.197Pt, .sup.198Au, .sup.199Au, .sup.199Au, .sup.201Tl, .sup.203Hg, .sup.211At, .sup.211Bi, .sup.211Pb, .sup.212Bi, .sup.212Pb, .sup.213Bi, .sup.215Po, .sup.217At, .sup.219Rn, .sup.221Fr, .sup.223Ra, .sup.224Ac, .sup.225Ac, .sup.255Fm or Th.sup.227.

14. The method of claim 13, wherein the radionuclide is .sup.90Y.

15. The method of claim 10, wherein the drug is selected from the group consisting of 5-fluorouracil, afatinib, aplidin, azaribine, anastrozole, anthracyclines, axitinib, AVL-101, AVL-291, bendamustine, bleomycin, bortezomib, bosutinib, bryostatin-1, busulfan, calicheamycin, camptothecin, carboplatin, 10-hydroxycamptothecin, carmustine, celecoxib, chlorambucil, cisplatinum (CDDP), Cox-2 inhibitors, irinotecan (CPT-11), SN-38, carboplatin, cladribine, camptothecans, crizotinib, cyclophosphamide, cytarabine, dacarbazine, dasatinib, dinaciclib, docetaxel, dactinomycin, daunorubicin, doxorubicin, 2-pyrrolinodoxorubicine (2PDOX), pro-2PDOX, cyano-morpholino doxorubicin, doxorubicin glucuronide, epirubicin glucuronide, erlotinib, estramustine, epipodophyllotoxin, entinostat, estrogen receptor binding agents, etoposide (VP16), etoposide glucuronide, etoposide phosphate, exemestane, fingolimod, floxuridine (FUdR), 3',5'-O-dioleoyl-FudR (FUdR-dO), fludarabine, flutamide, farnesyl-protein transferase inhibitors, flavopiridol, fostamatinib, ganetespib, GDC-0834, GS-1101, gefitinib, gemcitabine, hydroxyurea, ibrutinib, idarubicin, idelalisib, ifosfamide, imatinib, L-asparaginase, lapatinib, lenolidamide, leucovorin, LFM-A13, lomustine, mechlorethamine, melphalan, mercaptopurine, 6-mercaptopurine, methotrexate, mitoxantrone, mithramycin, mitomycin, mitotane, navelbine, neratinib, nilotinib, nitrosurea, olaparib, plicomycin, procarbazine, paclitaxel, PCI-32765, pentostatin, PSI-341, raloxifene, semustine, sorafenib, streptozocin, SU11248, sunitinib, tamoxifen, temazolomide, transplatinum, thalidomide, thioguanine, thiotepa, teniposide, topotecan, uracil mustard, vatalanib, vinorelbine, vinblastine, vincristine, vinca alkaloids and ZD1839.

16. The method of claim 10, wherein the toxin is elected from the group consisting of ricin, abrin, alpha toxin, saporin, ribonuclease (RNase), DNase I, Staphylococcal enterotoxin-A, pokeweed antiviral protein, gelonin, diphtheria toxin, Pseudomonas exotoxin, and Pseudomonas endotoxin.

17. The method of claim 10, wherein the immunomodulator is selected from the group consisting of a cytokine, a stem cell growth factor, a lymphotoxin, a hematopoietic factor, a colony stimulating factor (CSF), an interferon (IFN), erythropoietin, thrombopoietin tumor necrosis factor (TNF), granulocyte-colony stimulating factor (G-CSF), granulocyte macrophage-colony stimulating factor (GM-CSF), interferon-.alpha., interferon-.beta., interferon-.gamma., interferon-.lamda., human growth hormone, N-methionyl human growth hormone, bovine growth hormone, parathyroid hormone, thyroxine, insulin, proinsulin, relaxin, prorelaxin, follicle stimulating hormone (FSH), thyroid stimulating hormone (TSH), luteinizing hormone (LH), hepatic growth factor, prostaglandin, fibroblast growth factor, prolactin, placental lactogen, OB protein, tumor necrosis factor-.alpha., tumor necrosis factor-.beta., mullerian-inhibiting substance, mouse gonadotropin-associated peptide, inhibin, activin, vascular endothelial growth factor, integrin, thrombopoietin (TPO), NGF-.beta., platelet-growth factor, TGF-.alpha., TGF-.beta., insulin-like growth factor-I, insulin-like growth factor-II, erythropoietin (EPO), macrophage-CSF (M-CSF), IL-1, IL-1.alpha., IL-2, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-11, IL-12, IL-13, IL-14, IL-15, IL-16, IL-17, IL-18, IL-21, IL-23, IL-25, LIF, FLT-3, angiostatin, thrombospondin, endostatin, and lymphotoxin.

18. The method of claim 10, wherein the tyrosine kinase inhibitor is selected from the group consisting of canertinib, dasatinib, erlotinib, gefitinib, imatinib, lapatinib, leflunomide, nilotinib, pazopanib, semaxinib, sorafenib, sunitinib, sutent, vatalanib, PCI-32765 (ibrutinib), PCI-45292, GDC-0834, LFM-A13 and RN486.

Details for Patent 9,005,613

Applicant Tradename Biologic Ingredient Dosage Form BLA Number Approval Date Patent No. Assignee Estimated Patent Expiration Status Orphan Source
Merck ELSPAR asparaginase VIAL 101063 001 1978-01-10   Start Trial Immunomedics, Inc. (Morris Plains, NJ) 2023-06-16 RX search
Nps Pharms Inc NATPARA parathyroid hormone INJECTABLE;INJECTION 125511 001 2015-01-23   Start Trial Immunomedics, Inc. (Morris Plains, NJ) 2023-06-16 RX Orphan search
Nps Pharms Inc NATPARA parathyroid hormone INJECTABLE;INJECTION 125511 002 2015-01-23   Start Trial Immunomedics, Inc. (Morris Plains, NJ) 2023-06-16 RX Orphan search
Nps Pharms Inc NATPARA parathyroid hormone INJECTABLE;INJECTION 125511 003 2015-01-23   Start Trial Immunomedics, Inc. (Morris Plains, NJ) 2023-06-16 RX Orphan search
Nps Pharms Inc NATPARA parathyroid hormone INJECTABLE;INJECTION 125511 004 2015-01-23   Start Trial Immunomedics, Inc. (Morris Plains, NJ) 2023-06-16 RX Orphan search
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Number >Approval Date >Patent No. >Assignee >Estimated Patent Expiration >Status >Orphan >Source

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