Cancer treatment method

Abstract

Invented is a method of treating cancer or a pre-cancerous syndrome in a mammal, including a human, in need thereof which comprises the administration of an effective amount of a non-peptide thrombopoietin (TPO) receptor agonist to such mammal, suitably a human.

What is claimed is: 
     
         1 . A method of treating a disease state selected from: myelodysplastic syndrome and aplastic anemia, in a mammal in need thereof which comprises the in vivo administration of a therapeutically effective amount of a compound selected from:
 3′-{N′-[1-(3,4-Dimethylphenyl)-3-methyl-5-oxo-1,5-dihydropyrazol-4-ylidene]hydrazino}-2′-hydroxybiphenyl-3-carboxylic acid;   3-{N′-[1-(3,4-dimethylphenyl)-3-methyl-5-oxo-1,5-dihydropyrazol-4-ylidene]hydrazino}-2-hydroxy-3′-tetrazol-5-ylbiphenyl; and   1-(3-chloro-5-{[4-(4-chlorothiophen-2-yl)-5-(4-cyclohexylpiperazin-1-yl)thiazol-2-yl]carbamoyl}pyridine-2-yl)piperidine-4-carboxylic acid;   
       or a pharmaceutically acceptable salt thereof. 
     
     
         2 . The method according to  claim 1  wherein the mammal is a human. 
     
     
         3 . The method according to  claim 2  wherein the compound is administered orally. 
     
     
         4 . The method according to  claim 2  wherein the compound is administered parenterally. 
     
     
         5 . The method according to  claim 3  wherein the compound is:
 3′-{N′-[1-(3,4-Dimethylphenyl)-3-methyl-5-oxo-1,5-dihydropyrazol-4-ylidene]hydrazino}-2′-hydroxybiphenyl-3-carboxylic acid; 
 
       or a pharmaceutically acceptable salt thereof. 
     
     
         6 . The method according to  claim 5  wherein the compound is:
 3′-{N′-[1-(3,4-Dimethylphenyl)-3-methyl-5-oxo-1,5-dihydropyrazol-4-ylidene]hydrazino}-2′-hydroxybiphenyl-3-carboxylic acid bis-(monoethanolamine). 
 
     
     
         7 . The method according to  claim 3  wherein the compound is:
 3-{N′-[1-(3,4-dimethylphenyl)-3-methyl-5-oxo-1,5-dihydropyrazol-4-ylidene]hydrazino}-2-hydroxy-3′-tetrazol-5-ylbiphenyl; 
 
       or a pharmaceutically acceptable salt thereof. 
     
     
         8 . The method according to  claim 3  wherein the compound is:
 1-(3-chloro-5-{[4-(4-chlorothiophen-2-yl)-5-(4-cyclohexylpiperazin-1-yl)thiazol-2-yl]carbamoyl}pyridine-2-yl)piperidine-4-carboxylic acid; 
 
       or a pharmaceutically acceptable salt thereof.