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Table 1 Hedgehog pathway inhibitors in preclinical studies and current clinical trials

From: The Hedgehog signalling pathway in breast development, carcinogenesis and cancer therapy

Classification

Compound (Company)

Origin

Target

Patient population

 

Development stage

References

Experimental antagonists

Robotnikinin

Macrocycle

HH

-

 

Preclinical

[88]

 

Cyclopamine

Veratum californicum

SMO

-

 

Preclinical

[75, 76]

 

HhAntag

Benzimidazole derivative

SMO

-

 

Preclinical

[5]

 

Compound5

Bis-amide class

SMO

-

 

Preclinical

[82]

 

GANT58

Thiophene core with four pyridine rings

GLI

-

 

Preclinical

[84]

 

GANT61

Hexahydro-pyrimidine derivative

GLI

-

 

Preclinical

[84]

 

HIP1-4

Unknown

GLI

-

 

Preclinical

[85]

 

Zerumbone

Zingiber zerumbet

GLI

-

 

Preclinical

[85]

 

Arcyriaflavin C

Arcyria ferruginea

GLI

-

 

Preclinical

[85]

 

Physalin F

Physalis minima

GLI

-

 

Preclinical

[85]

 

Arsenic trioxide

Arsenic

GLI

-

 

Preclinical

[86, 87]

Neutralising antibody

5E1

Hybridomas

HH

-

 

Preclinical

[40]

Small molecules in current clinical trials

GDC-0449/Erivedge/vismodegib(Genentech/Roche/Curis)

Benzimidazole derivate

SMO

Skin

Basal cell carcinoma

Basal cell nevus syndrome

Breast

Phase I-III (FDA approved)

[77]

    

CNS/brain/head and neck

Medulloblastoma

Glioblastoma

  
    

Aero-and gastrodigestive

tract

Lung cancer

Oesophagus

Stomach

Colorectum

Pancreas

  
    

Genital tract

Ovarian

Prostate

  
    

Blood

Multiple myeloma

  
    

Soft tissue

Chondrosarcoma

  
 

LDE225 (Novartis)

Unknown

SMO

Skin

Basal cell carcinoma

Basal cell nevus syndrome

Breast

Phase I-II

[77]

    

CNS/brain/head and neck

Medulloblastoma

Glioblastoma

Neuroblastoma

Astrocytoma

  
    

Aero-and gastrodigestive tract

Lung cancer

Colorectum

Pancreas

  
    

Blood

Chronic myelogenous leukemia

  
    

Soft tissue

Rhabdomyo-sarcoma

  
 

LEQ506 (Novartis)

Unknown

SMO

Skin

Basal cell carcinoma

Phase I

[77]

    

CNS/brain/head and neck

Medulloblastoma

  
 

IPI-926 (Infinity Pharma)

Cyclopamine

SMO

Skin

Basal cell carcinoma

Phase I-II

[77]

    

CNS/head and neck

Head and neck cancer

  
    

Aero-and gastrodigestive tract

Pancreas

  
    

Soft tissue

Chondrosarcoma

  
 

BMS-833923 (BMS/Exelixis)

Unknown

SMO

Skin

Basal cell carcinoma

Basal cell nevus syndrome

Phase I-II

[77]

    

Aero-and gastrodigestive tract

Lung cancer

Oesophagus

Stomach

  
    

Blood

Acute myeloid leukemia

Chronic myelogenous leukemia

  
 

Itraconazole/Sporanox® (Johnson &Johnson)

Triazole antifungal

SMO

Skin

Basal cell carcinoma

Breast

Phase I-II (FDA approved)

[77, 83]

    

CNS/brain/head and neck

Neuroblastoma

  
    

Aero-and gastrodigestive tract

Lung cancer

  
    

Genital tract

Prostate

  
    

Blood

Leukemia

Myelodysplastic syndromes

  
 

PF-04449913 (Pfizer)

Unknown

SMO

Blood

Acute myeloid leukemia Myelodysplastic syndrome

Phase I-II

[77]

 

TAK-441 (Millenium)

 

SMO

Skin

Basal cell carcinoma

Phase I

[77]

  1. CNS, central nervous system; GLI, Glioma-associated oncoprotein; HH, Hedgehog; SMO, Smoothened.