Protein kinase inhibitor

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Protein kinase inhibitors
)

A protein kinase inhibitor (PKI) is a type of

phosphorylate (add a phosphate, or PO4, group) to a protein
and can modulate its function.

The phosphate groups are usually added to serine, threonine, or tyrosine amino acids on the protein. Most kinases act on both serine and threonine, the tyrosine kinases act on tyrosine, and a number (dual-specificity kinases) act on all three. There are also protein kinases that phosphorylate other amino acids, including histidine kinases that phosphorylate histidine residues.[citation needed]

Phosphorylation regulates many biological processes, and protein kinase inhibitors can be used to treat diseases due to hyperactive protein kinases (including mutant or overexpressed kinases in cancer) or to modulate cell functions to overcome other disease drivers.

Clinical use

Kinase inhibitors such as dasatinib are often used in the treatment of cancer and inflammation.[1]

Some of the kinase inhibitors used in treating cancer are inhibitors of tyrosine kinases.[2] The effectiveness of kinase inhibitors on various cancers can vary from patient to patient.[3]

Examples

There are several drugs launched or in development that target protein kinases and the receptors that activate them:

Name Target Company Class FDA approval
Adavosertib
WEE1
AstraZeneca Small molecule Not yet[4]
Afatinib
ErbB2
Boehringer Ingelheim Small molecule 2013
Non-small cell lung cancer
Axitinib
c-KIT
Pfizer Small molecule 2012 Renal cell carcinoma
Bosutinib
SRC
Pfizer Small molecule 2012 Chronic myelogenous leukemia
Cetuximab EGFR
BMS
Monoclonal antibody 2006 Mar (SCCHN)
Cobimetinib MEK
Roche
Small molecule 2015 Nov (Advanced melanoma with BRAF mutation) in Combination with Vemurafenib (BRAF)
Crizotinib
Met
Pfizer Small molecule 2011 Aug (NSCLC with Alk mutation)
Cabozantinib
MET/VEGFR2
Exelixis Small molecule 2012 Nov (Metastatic medullary thyroid cancer)
Dacomitinib
ErbB4
Pfizer Small molecule 2018
Non-small cell lung cancer
Dasatinib multiple targets
BMS
Small molecule 2006
Entrectinib
TrkC/ROS1/ALK
Ignyta Small molecule Orphan Drug Designations (Neuroblastoma 12/14, Colorectal cancer, NSCLC, both 2/15)
Erdafitinib
FGFR
Janssen
Small molecule 2018 Breakthrough Therapy[5]
Erlotinib EGFR Genentech Small molecule 2004
Fostamatinib
Syk
Rigel Pharmaceuticals / AstraZeneca Small molecule Not yet[6]
Gefitinib EGFR AstraZeneca Small molecule 2003 non-small cell lung cancer (NSCLC)
Ibrutinib BTK Pharmacyclics Small molecule 2013
Imatinib
Bcr-Abl
Novartis Small molecule 2001 (CML), 2002 (GIST) [7]
Lapatinib
ErbB2
GSK
Small molecule 2007 (HER2+ Breast)
Lenvatinib
VEGFR2
Eisai Co.
Small molecule 2015 (thyroid), 2016 (renal)
Mubritinib ? Takeda Small molecule Not yet, possibly abandoned
Nilotinib
Bcr-Abl
Novartis Small molecule 2007
Pazopanib
c-kit
GlaxoSmithKline
Small molecule 2009 (RCC)
Pegaptanib VEGF OSI/ Pfizer RNA Aptamer 2004 (AMD)
Ruxolitinib JAK Incyte Small molecule 2011 (Myelofibrosis)
Sorafenib multiple targets Onyx / Bayer Small molecule 2005 Dec (kidney)
Sunitinib multiple targets SUGEN / Pfizer Small molecule 2006 Jan (RCC & GIST)
SU6656 Src, others SUGEN Small molecule Not approved
Tucatinib HER2
Seattle Genetics
Small molecule 2020
Vandetanib
VEGFR/EGFR
AstraZeneca Small molecule 2011
Vemurafenib BRAF
Roche
Small molecule 2011 Aug (Advanced melanoma with BRAF mutation)

Comparison of available agents

Comparison of available agents used as Human Medicines
Drug Sponsor Target Indications Major toxicities Black box warning(s) MS
[Note 1][8]
D FR PC (AU)
[Note 2]
PC (US)
[Note 2]
FDA AD[9] EMA AD[10] TGA AD[11]
Afatinib Boehringer Ingelheim ErbB family (irreversible) Advanced
non-small cell lung cancer
Hepatotoxicity, kidney failure, electrolyte anomalies (mostly
hypokalaemia) and interstitial lung disease
(uncommon).
None - +++ - C D 12 July 2013 25 September 2013 7 November 2013
Aflibercept Bayer, Regeneron Pharmaceuticals
VEGF
Advanced colorectal cancer and wet macular degeneration. GI perforation, haemorrhage and hepatotoxicity None +++/++ +++/++ - D C 21 November 2011 22 November 2012 2 April 2013
Axitinib Pfizer
c-KIT
Renal cell carcinoma Thyroid dysfunction, blood clots, haemorrhages, reversible posterior leucoencephalopathy syndrome (uncommon), GI perforation/fistula (uncommon) and electrolyte disturbances None ++ ++ - D D 27 January 2012 3 September 2012 26 July 2012
Bevacizumab Genentech
VEGF
non-small cell lung cancer, renal cell carcinoma, macular degeneration and glioblastoma
Hypertension, GI perforation, ovarian failure, GI haemorrhage, blood clots, electrolyte anomalies,
congestive heart failure
, osteonecrosis of the jaw (rare), necrotising fasciitis (rare), gallbladder perforation (rare)
GI perforation, haemorrhage and wound healing complications ++ ++/+ - D C 26 February 2004 12 January 2005 24 February 2005
Bosutinib Pfizer
Bcr-Abl
Second-line
Chronic myelogenous leukaemia
treatment
Lower respiratory tract infection, anaphylaxis (uncommon), electrolyte anomalies, cardiovascular effects (especially QT interval prolongation), GI haemorrhage (uncommon), hepatotoxicity and kidney failure. None ++/+ +++ + N/A D 4 September 2012 27 March 2013 N/A
Cabozantinib Exelixis
VEGFR2
Metastatic thyroid cancer Electrolyte anomalies, hypotension, peripheral sensory neuropathy, GI perforation/fistula, reversible posterior leucoencephalopathy syndrome (rare), blood clots and
osteonecrosis
.
GI haemorrhage, perforation and fistula ++ +++/++ - N/A D 29 November 2012 N/A N/A
Crizotinib Pfizer
c-MET
non-small cell lung cancer
Peripheral neuropathy, electrolyte anomalies, blood clots, kidney cyst, liver failure, interstitial lung disease and cardiotoxicity (probably QT interval prolongation). None ++ ++ ++/+ D D 26 August 2011 23 October 2012 27 September 2013
Dacomitinib Pfizer ErbB family (irreversible) Advanced
non-small cell lung cancer
Diarrhea, rash, fatigue. None N/A N/A N/A N/A N/A 27 September 2018 2 April 2019 -
Dasatinib
Bristol-Myers Squibb
c-KIT
Second-line
Chronic myelogenous leukaemia
treatment
Electrolyte disturbances, haemorrhages, fluid retention, heart failure (uncommon), myocardial infarction (uncommon) and pulmonary hypertension None +/- ++ ++ D D 28 June 2006 20 November 2006 15 January 2007
Erlotinib
Roche
EGFR
Advanced
non-small cell lung cancer and pancreatic cancer
GI bleeds (rare), liver failure (rare), hepatorenal syndrome (rare), EGFR skin reactions and interstitial lung disease(uncommon). None - +++/++ - C D 18 November 2004 19 September 2005 30 January 2006
Gefitinib
Teva
EGFR
Advanced
non-small cell lung cancer
with EGFR mutation
Haemorrhage, EGFR skin reactions (including Stevens–Johnson syndrome [SJS; rare] and toxic epidermal necrolysis[TEN; rare]), liver failure (rare), hepatitis (uncommon), pancreatitis (uncommon) and interstitial lung disease (uncommon). N/A - +++/++ - C D 5 May 2003 (discontinued) 24 June 2009 7 September 2011
Imatinib Novartis
Bcr-Abl
First-line
chronic myelogenous leukaemia
treatment
Haemorrhage, electrolyte disturbances, cardiotoxicity (uncommon), kidney failure (uncommon), GI perforation, hepatotoxicity (rare) and rhabdomyolysis (rare) N/A +++/++ + ++ D D 10 May 2001 7 November 2001 13 August 2001
Lapatinib
GlaxoSmithKline
HER2 HER2-positive advanced breast cancer Hypersensitivity (rare), hepatotoxicity (uncommon), interstitial lung disease (uncommon) and cardiovascular problems. Hepatotoxicity - ++ - C D 13 March 2007 10 June 2008 28 June 2007
Nilotinib Novartis
Bcr-Abl
Second-line
chronic myelogenous leukaemia
treatment
Hyperglycaemia, electrolyte disturbances, fluid retention, pancreatitis and cardiotoxicity (mostly QT interval prolongation). QT interval prolongation and electrolyte anomalies ++ + + D D 29 October 2007 2 June 2009 17 January 2008
Panitumumab Amgen EGFR Colorectal cancer Electrolyte anomalies, anaphylaxis, blood clots, sepsis and pulmonary fibrosis. Dermatologic reactions and infusion reactions - + + C C 10 October 2006 3 December 2007 20 March 2012
Pazopanib
GlaxoSmithKline
c-KIT
soft tissue sarcoma
Cardiotoxicity (mostly QT interval prolongation but also heart failure [uncommon]), blood clots, haemorrhage, thyroid anomalies (mostly hypothyroidism), blood glucose anomalies (
hyperglycaemia), torsades de pointes
(uncommon), hepatotoxicity (uncommon), GI perforation/fistula (uncommon) and reversible posterior leucoencephalopathy syndrome (rare).
Hepatotoxicity - ++ - D D 19 October 2009 14 June 2010 30 June 2010
Pegaptanib OSI, Pfizer
VEGF
Wet macular degeneration Hypertension, cataracts, haemorrhage, vitreous floater,
transient ischaemic attack
, retinal detachment, diabetes mellitus and urinary tract infection
None - +/- ++ N/A B 17 December 2004 31 January 2006 N/A
Ponatinib ARIAD Pharmaceuticals
FLT3
T315I-positive
Acute lymphoblastic leukaemia
Hypertension, pneumonia, urinary tract infection, sepsis, GI haemorrhage, liver failure, cardiovascular problems and blood clots. Liver failure, blood clots and hepatotoxicity ++ + + N/A D 14 December 2012 1 July 2013 N/A
Ranibizumab Novartis
VEGF-A
Wet
macular oedema
(including diabetic macular oedema)
Haemorrhage (conjunctival, vitreous and injection site), increased intraocular pressure, vitreous detachment and retinal degeneration. None - - - D C 10 August 2012 22 January 2007 27 February 2007
Regorafenib Bayer
PDGFR
Advanced
gastrointestinal stromal tumours
Electrolyte anomalies, hepatotoxicity, hypotension, haemorrhage, GI fistula, thyroid problems and blood clots. Hepatotoxicity +++/++ ++ - D D 27 September 2012 26 August 2013 29 November 2013
Ruxolitinib Novartis JAK
Myelofibrosis
herpes zoster, tuberculosis
and hepatotoxicity
None +++ - - C C 16 November 2011 23 August 2012 3 July 2013
Sorafenib Bayer
c-KIT
, etc.
Advanced Renal cell carcinoma and Hepatocellular carcinoma Hypertension, peripheral neuropathy, thyroid dysfunction, cardiovascular problems (e.g. QT interval prolongation, heart attack or heart failure), electrolyte anomalies, GI perforation (uncommon), pancreatitis (uncommon), hepatitis (rare), nephrotic syndrome (rare) and reversible posterior leucoencephalopathy syndrome (rare) None ++ ++ - D D 20 December 2005 19 July 2006 27 September 2006
Sunitinib Pfizer
PDGFR
Renal cell carcinoma, GI stromal tumour, pancreatic neuroendocrine tumour Blood clots, cardiovascular problems (mostly heart failure or left ventricular dysfunction but also QT interval prolongation and torsades de pointes), thyroid dysfunction, electrolyte anomalies, skin reactions (including SJS [rare] and TEN [rare]), liver failure (uncommon) and pancreatitis (uncommon). Hepatotoxicity + ++ + D D 26 January 2006 19 July 2006 14 September 2006
Tofacitinib Pfizer JAK Rheumatoid arthritis Infections and malignancies Serious infections and malignancies - - - N/A C 6 November 2012 N/A; refused 26 April 2013 N/A
Trastuzumab Genentech HER2 Breast cancer (for either metastatic disease or adjuvant treatment), metastatic gastric cancer
Congestive heart failure
, depression, pulmonary toxicity, infections and tachycardia (heart high rate)
Pulmonary toxicity, cardiomyopathy and a confusion warning - + + B2 D 25 September 1998 28 August 2000 14 September 2000
Tucatinib
Seattle Genetics
HER2 Advanced unresectable or metastatic HER2-positive breast cancer Diarrhea, hepatotoxicity, embryo-fetal toxicity None April 2020 August 2020
Vandetanib AstraZeneca
BRK
Advanced medullary thyroid cancer Urinary tract infection, hypertension, QT interval prolongation, electrolyte anomalies, depression, GI perforation and thyroid anomalies QT interval prolongation - ++ - D D 21 April 2011 17 February 2012 31 January 2013
Vemurafenib
Roche
BRAF Metastatic
malignant melanoma
squamous cell carcinoma
and hepatotoxicity
None - + + D D 17 August 2011 10 May 2012 17 February 2012

Note:
AD = Approval date.
MS = Myelosuppression.
D = Diarrhoea.
FR = Fluid retention.
As far as myelosuppression, diarrhoea and fluid retention goes: +++ means >70% of patients exhibit clinically significant myelosuppression. ++ means 30-70% of patients exhibit significant myelosuppression. + means 10-30% of patients exhibit significant myelosuppression. - means 0-10% of patients exhibit this side effect.
General references templates are given, which refer the reader to the respective drug database.

  1. ^ Myelosuppression.
  2. ^ a b PC = Pregnancy category

See also

References

Further reading

External links