Anti-EGFR combinations for treating tumors

1. A method for treating cancer in a subject that is in need of such treatment, comprising administering to said subject a combination, consisting of:

(i) a pharmaceutical composition consisting of an admixture of 1) an effective amount of an EGFR binding antagonist antibody, and 2) one or more pharmaceutically acceptable carriers, excipients or diluents;

(ii) a pharmaceutical composition consisting of an admixture of 1) an effective amount of an immunotherapeutic, and 2) one or more pharmaceutically acceptable carriers, excipients or diluents, wherein the immunotherapeutic is a compound of Formula (I):

wherein dashed line represents bond or absence of bond;

X is S or —NR 1 , R 1 is —W 0 —W 1 —W 2 —W 3 —W 4 ,

W 0 is a bond, alkyl, alkenyl, alkynyl, alkoxy, or -alkyl-S-alkyl-,

W 1 is a bond, —O—, or —NR 2 —, wherein R 2 is hydrogen, alkyl or alkenyl,

W 2 is a bond, —O—, —C(O)—, —C(S)—, or —S(O) 2 —,

W 3 is a bond, —NR 3 —, wherein R 3 is hydrogen, alkyl or alkenyl,

W 4 is hydrogen, alkyl, alkenyl, alkynyl, alkoxy, cycloalkyl, aryl, aryloxy, heteroaryl, or heterocyclyl, each of which is optionally substituted by one or more substituents selected from the group consisting of hydroxyl, alkoxy, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heteroaryl, heterocyclyl, —NH 2 , nitro, -alkyl-hydroxyl, -alkyl-aryl, -alkyl-heteroaryl, -alkyl-heterocyclyl, —O—R 4 , —O-alkyl-R 4 , -alkyl-O—R 4 , —C(O)—R 4 , -alkyl-C(O)—R 4 , -alkyl-C(O)—O—R 4 , —C(O)—O—R 4 , —S—R 4 , —S(O) 2 —R 4 , —NH—S(O) 2 —R 4 , -alkyl-S—R4, -alkyl-S(O) 2 —R 4 , —NHR 4 , —NR 4 R 4 ,—NH-alkyl-R 4 , halogen, —CN, —NO 2 , and —SH, wherein R 4 is independently hydrogen, alkyl, alkenyl, -alkyl-hydroxyl, aryl, heteroaryl, heterocyclyl, or haloalkyl;

Z is hydrogen, alkyl, alkenyl, alkynyl, alkoxy, aryl, haloalkyl, heteroaryl, heterocyclyl, each of which can be optionally substituted by one or more substituents selected from the group consisting of hydroxyl, alkoxy, alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocyclyl, halogen, cyano, nitro, —N(R 5 ) 2 , -alkoxy-alkyl, -alkoxy-alkenyl, —C(O)-alkyl, —C(O)—O-alkyl, —O—C(O)—alkyl, —C(O)—N(R 5 ) 2 , aryl, heteroaryl, —CO-aryl, and —CO-heteroaryl, wherein each R 5 is independently hydrogen, alkyl, haloalkyl, -alkyl-aryl, or -alkyl-heteroaryl;

R is hydrogen, alkyl, alkoxy, haloalkyl, halogen, aryl, heteroaryl, heterocyclyl, each of which is optionally substituted by one or more substituents selected from the group consisting of hydroxyl, alkoxy, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heteroaryl, heterocyclyl, —NH 2 , nitro, -alkyl-hydroxyl, -alkyl-aryl, -alkyl-heteroaryl, -alkyl-heterocyclyl, —O—R 4 , —O-alkyl-R 4 , -alkyl-O—R 4 , —C(O)—R 4 , —C(O)—NH—R 4 , —C(O)—NR 4 R 4 , -alkyl-C(O)—R 4 , -alkyl-C(O)—O—R 4 , —C(O)—O—R 4 , —O—C(O)—R 4 , —S—R 4 , —C(O)—S—R 4 , —S—C(O)—R 4 , —S(O) 2 —R 4 , —NH—S(O) 2 —R 4 , -alkyl-S—R 4 , -alkyl-S(O) 2 —R 4 , —NHR 4 , —NR 4 R 4 ,—NH-alkyl-R 4 , halogen, —CN, and —SH, wherein R 4 is independently hydrogen, alkyl, alkenyl, alkoxy, -alkyl-hydroxyl, aryl, heteroaryl, heterocyclyl, or haloalkyl;

n is 0, 1, 2, 3, or 4;

Y is —NR 6 R 7 , —CR 6 R 7 R 8 , or -alkyl-NH 2 , each of which can be optionally substituted by one or more substituents selected from the group consisting of hydroxyl, alkoxy, alkyl, alkenyl, alkynyl, —NH 2 , halogen, —N(R 5 ) 2 , -alkoxy-alkyl, -alkoxy-alkenyl, —C(O)-alkyl, —C(O)—O-alkyl, —C(O)—N(R 5 ) 2 , aryl, heteroaryl, —CO-aryl, and —CO-heteroaryl,

wherein R 6 , R 7 and R 8 are independently hydrogen, alkyl, alkenyl, alkoxy, alkylamino, dialkylamino, alkylthio, arylthio, -alkyl-hydroxyl, -alkyl-C(O)—O—R 9 , -alkyl-C(O)—R 9 , or -alkyl-O—C(O)—R 9 , wherein each R 5 is independently hydrogen, alkyl, haloalkyl, -alkyl-aryl, or -alkyl-heteroaryl, wherein R 9 is hydrogen, alkyl, alkenyl, halogen, or haloalkyl;

X and Z taken together may optionally form a (5-9)-membered ring,

or a pharmaceutically acceptable salt or solvate thereof, that is capable of activating a human plasmacytoid dendritic cell, myeloid dendritic cell, or NK cell, or a combination thereof; and, optionally,

(iii) an effective amount of an additional therapeutic agent, wherein the additional therapeutic agent is an anticancer agent selected from the group consisting of a chemotherapeutic agent, an antimetabolite, an inhibitor of topoisomerase I and II, an alkylating agent, a microtubule inhibitor, an antiandrogen agent, a GNRh modulator or mixtures thereof;

wherein the EGFR binding antagonist antibody and the immunotherapeutic are not covalently linked.

2. The method of claim 1 , wherein said EGFR binding antagonist antibody is Cetuximab, Panitumumab, Necitumumab, Matuzumab Nimotuzumab, Zalutumumab, R05083945, MDX447, or MEHD7945.

3. The method of claim 1 , wherein said immunotherapeutic is a compound selected from the group consisting of: 2-propylthiazolo[4,5-c]quinolin-4-amine, 1-(2-methylpropyl)-1H-imidazo[4,5-c]quinolin-4-amine, 4-amino-2-(ethoxymethyl)-aa-di-methyl-1H-imidazo[4,5-c]quinoline-1-ethanol, 1-(4-amino-2-ethylaminomethylimidazo-[4,5-c]quinolin-1-yl)-2-methylpropan-2-ol, N-[4-(4-amino-2-ethyl-1H-imidazo[4,5-c]quinolin-1-yl)butyl-]methanesulfonamide, 4-amino-2-ethoxymethyl-aa-dimethyl-6,7,8,9-tetrahydro-1h-imidazo[4,5-c]quinoline-1-ethanol, 4-amino-aa-dimethyl-2-methoxyethyl-1h-imidazo[4,5-c]quinoline-1-ethanol, 1-{2-[3-(benzyloxy)propoxy]ethyl}-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-4-amine, 1-(2-amino-2-methylpropyl)-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-4-amine, 1-{4-[(3,5-dichlorophenyl)sulfonyl]butyl}-2-ethyl-1H-imidazo[4,5-c]quinolin-4-amine, N-{3-[4-amino-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-1-yl]propyl}-n′-(3-cyanophenyl)thiourea, N-[3-(4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl)-2,2-dimethylpropyl]benzamide, 2-butyl-1-[3-(methylsulfonyl)propyl]-1H-imidazo[4,5-c]quinolin-4-amine, N-{2-[4-amino-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-1-yl]-1,1-dimethylethyl}-2-ethoxyacetamide, 1-[4-amino-2-ethoxymethyl-7-(pyridin-4-yl)-1H-imidazo[4,5-c]quinolin-1-yl]-2-methylpropan-2-ol, 1-[4-amino-2-(ethoxymethyl)-7-(pyridin-3-yl)-1H-imidazo[4,5-c]quinolin-1-yl]-2-methylpropan-2-ol, N-{3-[4-amino-1-(2-hydroxy-2-methylpropyl)-2-(methoxyethyl)-1H-imidazo[4,5-c]quinolin-7-yl]phenyl}methanesulfonamide, 1-[4-amino-7-(5-hydroxymethylpyridin-3-yl)-2-(2-methoxyethyl)-1H-imidazo[4,5-c]quinolin-1-yl]-2-methylpropan-2-ol, 3-[4-amino-2-(ethoxymethyl)-7-(pyridin-3-yl)-1H-imidazo[4,5-c]quinolin-1-yl]propane-1,2-diol, 1-[2-(4-amino-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-1-yl)-1,1-dimethylethyl]-3-propylurea, 1-[2-(4-amino-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-1-yl)-1,1-dimethylethyl]-3-cyclopentylurea, 1-[(2,2-dimethyl-1,3-dioxolan-4-yl)methyl]-2-(ethoxymethyl)-7-(4-hydroxymethylphenyl)-1H-imidazo[4,5-c]quinolin-4-amine, 4-[4-amino-2-ethoxymethyl-1-(2-hydroxy-2-methylpropyl)-1H-imidazo[4,5-c]quinolin-7-yl]-N-methoxy-N-methylbenzamide, 2-ethoxymethyl-N1-isopropyl-6,7,8,9-tetrahydro-1H-imidazo[4,5-c]quinoline-1,4-diamine, 1-[4-amino-2-ethyl-7-(pyridin-4-yl)-1H-imidazo[4,5-c]quinolin-1-yl]-2-methylpropan-2-ol, and N-[4-(4-amino-2-ethyl-1H-imidazo[4,5-c]quinolin-1-yl)butyl]methanesulfonamide.

4. The method of claim 1 , wherein said combination is capable for providing a systemic protective effect against cancer or tumor recurrence.

5. The method of claim 1 , comprising administration of an effective amount of an additional therapeutic agent that is an anticancer agent.

6. The method of claim 5 , wherein said additional therapeutic agent comprises an anticancer agent that is an antimetabolite, an inhibitor of topoisomerase I and II, an alkylating agent, a microtubule inhibitor, an antiandrogen agent, a GNRh modulator or mixtures thereof, or a chemotherapeutic agent selected from the group consisting of tamoxifen, raloxifene, anastrozole, exemestane, letrozole, imatanib, paclitaxel, cyclophosphamide, lovastatin, minosine, gemcitabine, cytarabine, 5-fluorouracil, methotrexate, docetaxel, goserelin, vincristine, vinblastine, nocodazole, teniposide etoposide, gemcitabine, epothilone, vinorelbine, camptothecin, daunorubicin, actinomycin D, mitoxantrone, acridine, doxorubicin, epirubicin, and idarubicin.

7. The method of claim 1 , wherein said immunotherapeutic is of an amount that is capable of:

(1) inducing IFN-α in an enriched human blood DCs;

(2) inducing TNF-α in an enriched human blood DCs;

(3) inducing IL-12-α in an enriched human blood DCs;

(4) activating CD45+ immune cells in tumor microenvironment;

(5) activating CD4+ and CD8+ T cells in tumor microenvironment;

(6) activating NK cells in tumor microenvironment;

(7) activating plasmacytoid dendritic cells (pDC) and myeloid dendritic cells (mDc) in tumor microenvironment;

(8) activating macrophages and Monocytes in tumor microenvironment; and/or

(9) increasing migratory DCs in draining lymph nodes.

8. The method of claim 1 , wherein said cancer comprises a tumor.

9. The method of claim 1 , wherein said cancer is selected from the group consisting of: breast cancer, colorectal cancer, diffuse large B-cell lymphoma, endometrial cancer, follicular lymphoma, gastric cancer, glioblastoma, head and neck cancer, hepatocellular cancer, lung cancer, melanoma, multiple myeloma, ovarian cancer, pancreatic cancer, prostate cancer, and renal cell carcinoma.

10. The method of claim 1 , comprising administering to said subject a formulation comprising said immunotherapeutic in a dose of between about 0.0005 mg/kg, 0.0006 mg/kg, 0.0007 mg/kg, 0.0008 mg/kg, 0.0009 mg/kg, 0.001 mg/kg, 0.002 mg/kg, 0.003 mg/kg, 0.004 mg/kg, 0.005 mg/kg, 0.006 mg/kg, 0.007 mg/kg, 0.008 mg/kg, 0.009 mg/kg, 0.01 mg/kg, 0.02 mg/kg, 0.025 mg/kg, 0.05 mg/kg, 0.075 mg/kg, 0.1 mg/kg, 0.125 mg/kg, 0.15 mg/kg, 0.175 mg/kg, 0.2 mg/kg, 0.215 mg/kg, 0.25 mg/kg, 0.5 mg/kg, 0.75 mg/kg, 1 mg/kg, 1.25 mg/kg, 1.5 mg/kg, 1.75 mg/kg, 2 mg/kg, or 2.25 mg/kg, and about 2.5 mg/kg, all inclusive, twice daily, once daily, once every two, three, four, five or six days, or once, twice, or three times per week.

11. The method of claim 1 , comprising administering to said subject a formulation comprising said immunotherapeutic in a dose of between about 0.0005 mg/kg, and about 0.0006 mg/kg, 0.0007 mg/kg, 0.0008 mg/kg, 0.0009 mg/kg, 0.001 mg/kg, 0.002 mg/kg, 0.003 mg/kg, 0.004 mg/kg, 0.005 mg/kg, 0.006 mg/kg, 0.007 mg/kg, 0.008 mg/kg, 0.009 mg/kg, 0.01 mg/kg, 0.02 mg/kg, 0.025 mg/kg, 0.05 mg/kg, 0.075 mg/kg, 0.1 mg/kg, 0.125 mg/kg, 0.15 mg/kg, 0.175 mg/kg, 0.2 mg/kg, 0.215 mg/kg, 0.25 mg/kg, 0.5 mg/kg, 0.75 mg/kg, 1 mg/kg, 1.25 mg/kg, 1.5 mg/kg, 1.75 mg/kg, 2 mg/kg, 2.25 mg/kg, or 2.5 mg/kg, all inclusive, twice daily, once daily, once every two, three, four, five or six days, or once, twice, or three times per week.

12. The method of claim 1 , comprising administering to said subject a formulation comprising said immunotherapeutic in a dose of less than or about 0.0005 mg/kg, 0.0006 mg/kg, 0.0007 mg/kg, 0.0008 mg/kg, 0.0009 mg/kg, 0.001 mg/kg, 0.002 mg/kg, 0.003 mg/kg, 0.004 mg/kg, 0.005 mg/kg, 0.006 mg/kg, 0.007 mg/kg, 0.008 mg/kg, 0.009 mg/kg, 0.01 mg/kg, 0.02 mg/kg, 0.025 mg/kg, 0.05 mg/kg, 0.075 mg/kg, 0.1 mg/kg, 0.125 mg/kg, 0.15 mg/kg, 0.175 mg/kg, 0.2 mg/kg, 0.215 mg/kg, 0.25 mg/kg, 0.5 mg/kg, 0.75 mg/kg, 1 mg/kg, 1.25 mg/kg, 1.5 mg/kg, 1.75 mg/kg, 2 mg/kg, 2.25 mg/kg, or 2.5 mg/kg, twice daily, once daily, once every two, three, four, five or six days, or once, twice, or three times per week.

13. The method of claim 1 , wherein said administration is orally, sublingually, intravenously, intramuscularly, subcutaneously, or intratumorally.

14. The method of claim 1 , wherein said immunotherapeutic in said subject has a local concentration that is between about 0.005 μg/ml to about 12 μg/ml.

15. The method of a claim 1 , wherein said immunotherapeutic in said subject has a local concentration that is between about 0.05 μg/ml, 0.1 μg/ml, 0.15 μg/ml, 0.2 μg/ml, 0.3 μg/ml, or 0.4 μg/ml, to about 0.5 μg/ml.