SlideShare a Scribd company logo
1 of 28
Tarceva®
( erlotinib )
Tarceva®
( erlotinib )
By Sirinoot Jantharangkul
4827038
Tarceva
 Generic name: Erlotinib
 Brand name: Tarceva®
 FDA Approval Date: November 18,
2004
Tarceva
 Indicated for :the treatment of locally
advanced or metastatic non-small cell
lung cancer that has failed prior
chemotherapy
 Human Epidermal Growth Factor
Receptor Type 1/Epidermal Growth
Factor Receptor (HER1/EGFR) tyrosine
kinase inhibitor
Introduction
Lung Cancer
 Two general types of lung cancer exist:
• Non-small cell lung cancer (NSCLC)
• Small cell lung cancer
 The most common type of lung
cancer is NSCLC. Approximately
147,000 new cases of NSCLC
were reported in the United
States in 2004.
Introduction
Non-small cell lung cancer (NSCLC)
 Comprises 85% of lung cancer
 High mortality
 Most patients present with
advanced disease:
• ~20% stage IIIA/IIIB
(poor prognosis)
• >50% stage IV disease
(limited to treatment option)
Introduction
Tumors with HER1/EGFR Dysregulation
• Many solid tumors have
dysregulated HER1/EGFR
• This association of
HER1/EGFR and tumor
development has been
shown in hormone-
sensitive tumors
(breast and prostate),and also in tumors that
are not hormone-dependent (e.g. head and
neck,
NSCLC, colon, ovarian, and glioma).
Introduction
HER1/EGFR Expression in Lung
Normal lung tissue
Low/no HER1/EGFR
Small-cell lung cancer
Low/no HER1/EGFRNSCLC
50-90%
Introduction
Epidermal growth factor receptor
(EGFR)
HER2
HER1/EGFR
HER3
HER4
 A receptor tyrosine
kinase
 Four members in its
family
 ทำำหน้ำที่เป็น receptorต่อ
growth factor ligand
 อยู่บนผิวของ cell ปกติ
และพบมำกที่ cellมะเร็ง
Introduction
HER1/EGFR
HER1/EGFR is made up of 3 parts
•intracellular tyrosine kinase domain
•short transmembrane domain
•extracellular ligand-binding domain
Introduction
Effects of HER1/EGFR Activation
cell proliferationCell growth
Various cellular effect
Ligand binding
Receptor
dimerization
Activated
tyrosine kinase
Induce
phosphorylation
Signal
transduction
P P
Introduction
HER family of receptors
and the role of HER1/EGFR
Introduction
Dysregulation of HER1/EGFR
 Inhibition of
apoptosis
 Proliferation
 Invasion/metastasis
 Angiogenesis
(development of tumor
vascular)
Introduction
Dysregulation of HER1/EGFR
Introduction
Dysregulation of HER1/EGFR
Introduction
Chemotherapeutic agents
 ออกฤทธิ์ยับยั้งการเจริญเติบโต หรือทำาลายเซลล์ของสิ่ง
มีชีวิตโดยไม่มีมีความจำาเพาะ
• ทำาลายเซลล์มะเร็ง
• ทำาลายเซลล์ปกติของร่างกาย
 Solid tumor หลายชนิดตอบสนองไม่ดีต่อยา และเกิด
อาการไม่พึงประสงค์ ที่เกิดจากการออกฤทธิ์ของยา
ทำาลายเซลล์ปกติ
“พัฒนาความรู้ด้านพยาธิกำาเนิด
ของเซลล์มะเร็ง
โมเลกุลและกระบวนการทั้ง
Introduction
Molecularly targeted therapy
 วิวัฒนาการในการรักษาโรคมะเร็งชนิด Solid tumor
 ยับยั้งโมเลกุล หรือกระบวนการทางชีวภาพที่มีความสำาคัญ
ต่อการเกิดและการเติบโตของเซลล์มะเร็ง
• มีความจำาเพาะต่อเซลล์มะเร็งแต่ละชนิด
• มีผลข้างเคียงต่อเซลล์ปกติของร่างกายน้อยมาก
“ผลการต้านเซลล์มะเร็งสูง
ในขณะที่ผลไม่พึงประสงค์ต่อเซลล์ปกติ
น้อย
ต่างจากการให้ยาเคมีบำาบัด ที่ไม่สามารถ
Introduction
Tarceva
O
O
H3C
H3C
O
O
NH
N
N
• Small-molecule inhibitor
of HER1/EGFR
• Molecular wight 429.90
• Orally available
Tarceva (erlotinib)
Mechanism of inhibition
Mechanism of inhibition
Pharmacokinetics
 A: bioavailability ≈ 60%; food ↑
bioavailability to almost 100%
 D: ≈ 93% protein bound to albumin
and alpha-1 acid glycoprotein
 M: primarily by CYP3A4 and to a
lesser extent by CYP1A2
 E: mainly fecal (> 80%); t½= 36h
Drug Interactions
 CYP3A4 inhibitors expected to
increase exposure to erlotinib:
ketoconazole increased AUC by
67%
 CYP3A4 inducers expected to
decrease exposure to erlotinib:
rifampicin increased clearance by
3-fold and reduced AUC by 67%
Adverse Effects
 Common adverse effects
• Rash (75) [17]
• Diarrhea (54) [18]
• Anorexia (52) [38]
• Dyspnea (41) [35]
• Infection (24) [15]
• Stomatitis (17) [3]
• Pruritus (13) [5]
*(treatment) [placebo]
Monitoring
 Monitor for acute onset of new or
progressive pulmonary symptoms
such as dyspnea, cough, or fever
 If interstitial lung disease is
diagnosed, discontinue erlotinib
 Consider dose adjustment with
severe LFT changes (AST,ALT, Bili,
Alk Phos)
Prescription Information
 Standard dose is 150 mg po daily taken
at least one hour before or two hours
after the ingestion of food
 Cost: #30 150 mg tablets $2125.02
Summary
 Tarceva™, erlotinib, is a Human Epidermal
Growth Receptor Type 1/ Epidermal growth
Factor Receptor (HER1/EGFR) tyrosine
kinase inhibitor.
 Tarceva™ is indicated for the treatment of
patients with locally advanced or metastatic
non small cell lung cancer (NSCLC) after
failure of at least one prior chemotherapy
regimen.
Summary
 Dermatologic and GI side effects are common.
 The incidence of Interstitial Lung Disease was
the same as the placebo group (0.8%) in one
trial.
THANK
YOU
Mechanism of action

More Related Content

What's hot

Pembrolizumab in advanced melanoma
Pembrolizumab in advanced melanomaPembrolizumab in advanced melanoma
Pembrolizumab in advanced melanomaRanjita Pallavi
 
ImmunoOncology in Lung Cancer
ImmunoOncology in Lung CancerImmunoOncology in Lung Cancer
ImmunoOncology in Lung Cancerspa718
 
New Thinking, New Strategies in the Treatment of Advanced NSCLC Without Drive...
New Thinking, New Strategies in the Treatment of Advanced NSCLC Without Drive...New Thinking, New Strategies in the Treatment of Advanced NSCLC Without Drive...
New Thinking, New Strategies in the Treatment of Advanced NSCLC Without Drive...i3 Health
 
Management of adverse effects of cancer chemotherapy 2
Management of adverse effects of cancer chemotherapy  2Management of adverse effects of cancer chemotherapy  2
Management of adverse effects of cancer chemotherapy 2Dr. Pooja
 
Targeted therapy and immunotherapy in lung cancer
Targeted therapy and immunotherapy in lung cancerTargeted therapy and immunotherapy in lung cancer
Targeted therapy and immunotherapy in lung cancerAlok Gupta
 
Management of chemotherapy induced nausea and vomiting
Management of chemotherapy induced nausea and vomitingManagement of chemotherapy induced nausea and vomiting
Management of chemotherapy induced nausea and vomitingAPOLLO JAMES
 
lung cancer ppt.pptx
lung cancer ppt.pptxlung cancer ppt.pptx
lung cancer ppt.pptxmadurai
 
Aurelia asco 20121
Aurelia asco 20121Aurelia asco 20121
Aurelia asco 20121lefein
 
Conversatorio con cirugía de tórax sobre NSCLC - Sesión 3: Terapia dirigida
Conversatorio con cirugía de tórax sobre NSCLC - Sesión 3: Terapia dirigidaConversatorio con cirugía de tórax sobre NSCLC - Sesión 3: Terapia dirigida
Conversatorio con cirugía de tórax sobre NSCLC - Sesión 3: Terapia dirigidaMauricio Lema
 
Treatment Options Stage III Colon Cancer - CRCWebinar June 21 2017
Treatment Options Stage III Colon Cancer - CRCWebinar June 21 2017Treatment Options Stage III Colon Cancer - CRCWebinar June 21 2017
Treatment Options Stage III Colon Cancer - CRCWebinar June 21 2017Fight Colorectal Cancer
 
Trastuzumab
TrastuzumabTrastuzumab
Trastuzumabmadurai
 
Treatment of her2 positive breast cancer
Treatment of her2 positive breast cancerTreatment of her2 positive breast cancer
Treatment of her2 positive breast cancerManar Malik
 
Pharmaceutical prospectives of anti estrogen, m-tor, CDK 4/6 in Breast Cancer
Pharmaceutical prospectives of anti estrogen, m-tor, CDK 4/6 in Breast CancerPharmaceutical prospectives of anti estrogen, m-tor, CDK 4/6 in Breast Cancer
Pharmaceutical prospectives of anti estrogen, m-tor, CDK 4/6 in Breast CancerNoha El Baghdady
 
First Line Therapy in EGFR Mutant Advanced/Metastatic NSCLC
First Line Therapy in EGFR Mutant Advanced/Metastatic NSCLCFirst Line Therapy in EGFR Mutant Advanced/Metastatic NSCLC
First Line Therapy in EGFR Mutant Advanced/Metastatic NSCLCEmad Shash
 
Endocrine resistance
Endocrine resistanceEndocrine resistance
Endocrine resistanceINEN
 

What's hot (20)

Pembrolizumab in advanced melanoma
Pembrolizumab in advanced melanomaPembrolizumab in advanced melanoma
Pembrolizumab in advanced melanoma
 
ImmunoOncology in Lung Cancer
ImmunoOncology in Lung CancerImmunoOncology in Lung Cancer
ImmunoOncology in Lung Cancer
 
New Thinking, New Strategies in the Treatment of Advanced NSCLC Without Drive...
New Thinking, New Strategies in the Treatment of Advanced NSCLC Without Drive...New Thinking, New Strategies in the Treatment of Advanced NSCLC Without Drive...
New Thinking, New Strategies in the Treatment of Advanced NSCLC Without Drive...
 
Management of adverse effects of cancer chemotherapy 2
Management of adverse effects of cancer chemotherapy  2Management of adverse effects of cancer chemotherapy  2
Management of adverse effects of cancer chemotherapy 2
 
Targeted therapy and immunotherapy in lung cancer
Targeted therapy and immunotherapy in lung cancerTargeted therapy and immunotherapy in lung cancer
Targeted therapy and immunotherapy in lung cancer
 
Management of chemotherapy induced nausea and vomiting
Management of chemotherapy induced nausea and vomitingManagement of chemotherapy induced nausea and vomiting
Management of chemotherapy induced nausea and vomiting
 
lung cancer ppt.pptx
lung cancer ppt.pptxlung cancer ppt.pptx
lung cancer ppt.pptx
 
Aurelia asco 20121
Aurelia asco 20121Aurelia asco 20121
Aurelia asco 20121
 
SERM & SERD
SERM & SERDSERM & SERD
SERM & SERD
 
Conversatorio con cirugía de tórax sobre NSCLC - Sesión 3: Terapia dirigida
Conversatorio con cirugía de tórax sobre NSCLC - Sesión 3: Terapia dirigidaConversatorio con cirugía de tórax sobre NSCLC - Sesión 3: Terapia dirigida
Conversatorio con cirugía de tórax sobre NSCLC - Sesión 3: Terapia dirigida
 
Treatment Options Stage III Colon Cancer - CRCWebinar June 21 2017
Treatment Options Stage III Colon Cancer - CRCWebinar June 21 2017Treatment Options Stage III Colon Cancer - CRCWebinar June 21 2017
Treatment Options Stage III Colon Cancer - CRCWebinar June 21 2017
 
Her2. dr
Her2. drHer2. dr
Her2. dr
 
Trastuzumab
TrastuzumabTrastuzumab
Trastuzumab
 
Alimta
AlimtaAlimta
Alimta
 
Management of crpc
Management of crpcManagement of crpc
Management of crpc
 
Treatment of her2 positive breast cancer
Treatment of her2 positive breast cancerTreatment of her2 positive breast cancer
Treatment of her2 positive breast cancer
 
Pharmaceutical prospectives of anti estrogen, m-tor, CDK 4/6 in Breast Cancer
Pharmaceutical prospectives of anti estrogen, m-tor, CDK 4/6 in Breast CancerPharmaceutical prospectives of anti estrogen, m-tor, CDK 4/6 in Breast Cancer
Pharmaceutical prospectives of anti estrogen, m-tor, CDK 4/6 in Breast Cancer
 
ABRAXANE in Radiation Therapy
ABRAXANE in Radiation TherapyABRAXANE in Radiation Therapy
ABRAXANE in Radiation Therapy
 
First Line Therapy in EGFR Mutant Advanced/Metastatic NSCLC
First Line Therapy in EGFR Mutant Advanced/Metastatic NSCLCFirst Line Therapy in EGFR Mutant Advanced/Metastatic NSCLC
First Line Therapy in EGFR Mutant Advanced/Metastatic NSCLC
 
Endocrine resistance
Endocrine resistanceEndocrine resistance
Endocrine resistance
 

Viewers also liked

Treatment of Non–Small-Cell Lung Cancer with Erlotinib or Gefitinib
Treatment of Non–Small-Cell Lung Cancer with Erlotinib or GefitinibTreatment of Non–Small-Cell Lung Cancer with Erlotinib or Gefitinib
Treatment of Non–Small-Cell Lung Cancer with Erlotinib or Gefitinibseayat1103
 
Receptor tyrosine kinase
Receptor tyrosine kinaseReceptor tyrosine kinase
Receptor tyrosine kinaseSobia
 
TREATMENT OF NON-HIDGKIN'S LYMPHOMA IN ELDERLY PATIENTS
TREATMENT OF NON-HIDGKIN'S LYMPHOMA IN ELDERLY PATIENTSTREATMENT OF NON-HIDGKIN'S LYMPHOMA IN ELDERLY PATIENTS
TREATMENT OF NON-HIDGKIN'S LYMPHOMA IN ELDERLY PATIENTSspa718
 
7 neelapu
7 neelapu7 neelapu
7 neelapuspa718
 
Thrombotic Microangiopathy associated with proteasome inhibitors
Thrombotic Microangiopathy associated with proteasome inhibitorsThrombotic Microangiopathy associated with proteasome inhibitors
Thrombotic Microangiopathy associated with proteasome inhibitorsAhad Lodhi
 
Medical Students 2011 - N. Pavlidis - INTRODUCTION TO CANCER TREATMENT- Basic...
Medical Students 2011 - N. Pavlidis - INTRODUCTION TO CANCER TREATMENT- Basic...Medical Students 2011 - N. Pavlidis - INTRODUCTION TO CANCER TREATMENT- Basic...
Medical Students 2011 - N. Pavlidis - INTRODUCTION TO CANCER TREATMENT- Basic...European School of Oncology
 
Chemotherapy- Induced Peripheral Neuropathy A Review and Update
Chemotherapy- Induced Peripheral Neuropathy   A Review and UpdateChemotherapy- Induced Peripheral Neuropathy   A Review and Update
Chemotherapy- Induced Peripheral Neuropathy A Review and UpdateYasar Hammor. MRCP(UK),FRCP
 
Carfilzomib: new standard of care for myeloma
Carfilzomib: new standard of care for myelomaCarfilzomib: new standard of care for myeloma
Carfilzomib: new standard of care for myelomaspa718
 
IMWG updates on plasma cell dyscrasias
IMWG updates on plasma cell dyscrasias IMWG updates on plasma cell dyscrasias
IMWG updates on plasma cell dyscrasias Ekta Jajodia
 
Multiple Myeloma Modified , Dr Gamal Abdul Hamid
Multiple   Myeloma Modified ,  Dr  Gamal  Abdul  HamidMultiple   Myeloma Modified ,  Dr  Gamal  Abdul  Hamid
Multiple Myeloma Modified , Dr Gamal Abdul HamidGamal Abdul Hamid
 
Receptor Tyrosine Kinases
Receptor Tyrosine KinasesReceptor Tyrosine Kinases
Receptor Tyrosine Kinasesfondas vakalis
 
Lung cancer: a 2014 update with information about immunotherapies
Lung cancer: a 2014 update with information about immunotherapiesLung cancer: a 2014 update with information about immunotherapies
Lung cancer: a 2014 update with information about immunotherapiesZeena Nackerdien
 
Inherited T790M EGFR Mutation and Lung Cancer Risk
Inherited T790M EGFR Mutation and Lung Cancer RiskInherited T790M EGFR Mutation and Lung Cancer Risk
Inherited T790M EGFR Mutation and Lung Cancer RiskH. Jack West
 
Ppt lung carcinoma part1
Ppt lung carcinoma part1Ppt lung carcinoma part1
Ppt lung carcinoma part1Juned Khan
 

Viewers also liked (20)

Treatment of Non–Small-Cell Lung Cancer with Erlotinib or Gefitinib
Treatment of Non–Small-Cell Lung Cancer with Erlotinib or GefitinibTreatment of Non–Small-Cell Lung Cancer with Erlotinib or Gefitinib
Treatment of Non–Small-Cell Lung Cancer with Erlotinib or Gefitinib
 
First-line Treatment In In EGFR Mutant NSCLC
First-line Treatment In In EGFR Mutant NSCLCFirst-line Treatment In In EGFR Mutant NSCLC
First-line Treatment In In EGFR Mutant NSCLC
 
Receptor tyrosine kinase
Receptor tyrosine kinaseReceptor tyrosine kinase
Receptor tyrosine kinase
 
Lung Cancer
Lung CancerLung Cancer
Lung Cancer
 
Lung Cancer
Lung CancerLung Cancer
Lung Cancer
 
TREATMENT OF NON-HIDGKIN'S LYMPHOMA IN ELDERLY PATIENTS
TREATMENT OF NON-HIDGKIN'S LYMPHOMA IN ELDERLY PATIENTSTREATMENT OF NON-HIDGKIN'S LYMPHOMA IN ELDERLY PATIENTS
TREATMENT OF NON-HIDGKIN'S LYMPHOMA IN ELDERLY PATIENTS
 
7 neelapu
7 neelapu7 neelapu
7 neelapu
 
Dr. Goy MCL
Dr. Goy MCLDr. Goy MCL
Dr. Goy MCL
 
Thrombotic Microangiopathy associated with proteasome inhibitors
Thrombotic Microangiopathy associated with proteasome inhibitorsThrombotic Microangiopathy associated with proteasome inhibitors
Thrombotic Microangiopathy associated with proteasome inhibitors
 
Medical Students 2011 - N. Pavlidis - INTRODUCTION TO CANCER TREATMENT- Basic...
Medical Students 2011 - N. Pavlidis - INTRODUCTION TO CANCER TREATMENT- Basic...Medical Students 2011 - N. Pavlidis - INTRODUCTION TO CANCER TREATMENT- Basic...
Medical Students 2011 - N. Pavlidis - INTRODUCTION TO CANCER TREATMENT- Basic...
 
Chemotherapy- Induced Peripheral Neuropathy A Review and Update
Chemotherapy- Induced Peripheral Neuropathy   A Review and UpdateChemotherapy- Induced Peripheral Neuropathy   A Review and Update
Chemotherapy- Induced Peripheral Neuropathy A Review and Update
 
Carfilzomib: new standard of care for myeloma
Carfilzomib: new standard of care for myelomaCarfilzomib: new standard of care for myeloma
Carfilzomib: new standard of care for myeloma
 
IMWG updates on plasma cell dyscrasias
IMWG updates on plasma cell dyscrasias IMWG updates on plasma cell dyscrasias
IMWG updates on plasma cell dyscrasias
 
Lung Cancer Video1
Lung Cancer Video1Lung Cancer Video1
Lung Cancer Video1
 
Multiple Myeloma Modified , Dr Gamal Abdul Hamid
Multiple   Myeloma Modified ,  Dr  Gamal  Abdul  HamidMultiple   Myeloma Modified ,  Dr  Gamal  Abdul  Hamid
Multiple Myeloma Modified , Dr Gamal Abdul Hamid
 
Receptor Tyrosine Kinases
Receptor Tyrosine KinasesReceptor Tyrosine Kinases
Receptor Tyrosine Kinases
 
Lung cancer: a 2014 update with information about immunotherapies
Lung cancer: a 2014 update with information about immunotherapiesLung cancer: a 2014 update with information about immunotherapies
Lung cancer: a 2014 update with information about immunotherapies
 
Plasma cell disorders ppt
Plasma cell disorders pptPlasma cell disorders ppt
Plasma cell disorders ppt
 
Inherited T790M EGFR Mutation and Lung Cancer Risk
Inherited T790M EGFR Mutation and Lung Cancer RiskInherited T790M EGFR Mutation and Lung Cancer Risk
Inherited T790M EGFR Mutation and Lung Cancer Risk
 
Ppt lung carcinoma part1
Ppt lung carcinoma part1Ppt lung carcinoma part1
Ppt lung carcinoma part1
 

More from Sirinoot Jantharangkul

More from Sirinoot Jantharangkul (13)

Memantine (NAMENDA)
Memantine (NAMENDA)Memantine (NAMENDA)
Memantine (NAMENDA)
 
Vildagliptin
Vildagliptin Vildagliptin
Vildagliptin
 
Rozerem (ramelteon)
Rozerem (ramelteon)Rozerem (ramelteon)
Rozerem (ramelteon)
 
Cymbalta (duloxetine hydrochloride)
Cymbalta (duloxetine hydrochloride) Cymbalta (duloxetine hydrochloride)
Cymbalta (duloxetine hydrochloride)
 
การใช้ยาในผู้สูงอายุ
การใช้ยาในผู้สูงอายุการใช้ยาในผู้สูงอายุ
การใช้ยาในผู้สูงอายุ
 
การส่งเสริมการขับถ่ายอุจจาระ 57
การส่งเสริมการขับถ่ายอุจจาระ 57การส่งเสริมการขับถ่ายอุจจาระ 57
การส่งเสริมการขับถ่ายอุจจาระ 57
 
Antibiotic_2 :Antiviral agents, Antituberculotic drugs, Antifungal drugs, Ant...
Antibiotic_2 :Antiviral agents, Antituberculotic drugs, Antifungal drugs, Ant...Antibiotic_2 :Antiviral agents, Antituberculotic drugs, Antifungal drugs, Ant...
Antibiotic_2 :Antiviral agents, Antituberculotic drugs, Antifungal drugs, Ant...
 
Antibiotic_1
Antibiotic_1 Antibiotic_1
Antibiotic_1
 
Drugs used in disorders of coagulation
Drugs used in disorders of coagulationDrugs used in disorders of coagulation
Drugs used in disorders of coagulation
 
Agent used in hyperlipidemia
Agent used in hyperlipidemiaAgent used in hyperlipidemia
Agent used in hyperlipidemia
 
Cardiovascular drugs
Cardiovascular drugsCardiovascular drugs
Cardiovascular drugs
 
Drug Therapy of Hypertension
Drug Therapy of HypertensionDrug Therapy of Hypertension
Drug Therapy of Hypertension
 
Diuretics drugs
 Diuretics drugs Diuretics drugs
Diuretics drugs
 

Tarceva ( erlotinib ) 2

  • 1. Tarceva® ( erlotinib ) Tarceva® ( erlotinib ) By Sirinoot Jantharangkul 4827038
  • 2. Tarceva  Generic name: Erlotinib  Brand name: Tarceva®  FDA Approval Date: November 18, 2004
  • 3. Tarceva  Indicated for :the treatment of locally advanced or metastatic non-small cell lung cancer that has failed prior chemotherapy  Human Epidermal Growth Factor Receptor Type 1/Epidermal Growth Factor Receptor (HER1/EGFR) tyrosine kinase inhibitor Introduction
  • 4. Lung Cancer  Two general types of lung cancer exist: • Non-small cell lung cancer (NSCLC) • Small cell lung cancer  The most common type of lung cancer is NSCLC. Approximately 147,000 new cases of NSCLC were reported in the United States in 2004. Introduction
  • 5. Non-small cell lung cancer (NSCLC)  Comprises 85% of lung cancer  High mortality  Most patients present with advanced disease: • ~20% stage IIIA/IIIB (poor prognosis) • >50% stage IV disease (limited to treatment option) Introduction
  • 6. Tumors with HER1/EGFR Dysregulation • Many solid tumors have dysregulated HER1/EGFR • This association of HER1/EGFR and tumor development has been shown in hormone- sensitive tumors (breast and prostate),and also in tumors that are not hormone-dependent (e.g. head and neck, NSCLC, colon, ovarian, and glioma). Introduction
  • 7. HER1/EGFR Expression in Lung Normal lung tissue Low/no HER1/EGFR Small-cell lung cancer Low/no HER1/EGFRNSCLC 50-90% Introduction
  • 8. Epidermal growth factor receptor (EGFR) HER2 HER1/EGFR HER3 HER4  A receptor tyrosine kinase  Four members in its family  ทำำหน้ำที่เป็น receptorต่อ growth factor ligand  อยู่บนผิวของ cell ปกติ และพบมำกที่ cellมะเร็ง Introduction
  • 9. HER1/EGFR HER1/EGFR is made up of 3 parts •intracellular tyrosine kinase domain •short transmembrane domain •extracellular ligand-binding domain Introduction
  • 10. Effects of HER1/EGFR Activation cell proliferationCell growth Various cellular effect Ligand binding Receptor dimerization Activated tyrosine kinase Induce phosphorylation Signal transduction P P Introduction
  • 11. HER family of receptors and the role of HER1/EGFR Introduction
  • 12. Dysregulation of HER1/EGFR  Inhibition of apoptosis  Proliferation  Invasion/metastasis  Angiogenesis (development of tumor vascular) Introduction
  • 15. Chemotherapeutic agents  ออกฤทธิ์ยับยั้งการเจริญเติบโต หรือทำาลายเซลล์ของสิ่ง มีชีวิตโดยไม่มีมีความจำาเพาะ • ทำาลายเซลล์มะเร็ง • ทำาลายเซลล์ปกติของร่างกาย  Solid tumor หลายชนิดตอบสนองไม่ดีต่อยา และเกิด อาการไม่พึงประสงค์ ที่เกิดจากการออกฤทธิ์ของยา ทำาลายเซลล์ปกติ “พัฒนาความรู้ด้านพยาธิกำาเนิด ของเซลล์มะเร็ง โมเลกุลและกระบวนการทั้ง Introduction
  • 16. Molecularly targeted therapy  วิวัฒนาการในการรักษาโรคมะเร็งชนิด Solid tumor  ยับยั้งโมเลกุล หรือกระบวนการทางชีวภาพที่มีความสำาคัญ ต่อการเกิดและการเติบโตของเซลล์มะเร็ง • มีความจำาเพาะต่อเซลล์มะเร็งแต่ละชนิด • มีผลข้างเคียงต่อเซลล์ปกติของร่างกายน้อยมาก “ผลการต้านเซลล์มะเร็งสูง ในขณะที่ผลไม่พึงประสงค์ต่อเซลล์ปกติ น้อย ต่างจากการให้ยาเคมีบำาบัด ที่ไม่สามารถ Introduction
  • 17. Tarceva O O H3C H3C O O NH N N • Small-molecule inhibitor of HER1/EGFR • Molecular wight 429.90 • Orally available Tarceva (erlotinib)
  • 20. Pharmacokinetics  A: bioavailability ≈ 60%; food ↑ bioavailability to almost 100%  D: ≈ 93% protein bound to albumin and alpha-1 acid glycoprotein  M: primarily by CYP3A4 and to a lesser extent by CYP1A2  E: mainly fecal (> 80%); t½= 36h
  • 21. Drug Interactions  CYP3A4 inhibitors expected to increase exposure to erlotinib: ketoconazole increased AUC by 67%  CYP3A4 inducers expected to decrease exposure to erlotinib: rifampicin increased clearance by 3-fold and reduced AUC by 67%
  • 22. Adverse Effects  Common adverse effects • Rash (75) [17] • Diarrhea (54) [18] • Anorexia (52) [38] • Dyspnea (41) [35] • Infection (24) [15] • Stomatitis (17) [3] • Pruritus (13) [5] *(treatment) [placebo]
  • 23. Monitoring  Monitor for acute onset of new or progressive pulmonary symptoms such as dyspnea, cough, or fever  If interstitial lung disease is diagnosed, discontinue erlotinib  Consider dose adjustment with severe LFT changes (AST,ALT, Bili, Alk Phos)
  • 24. Prescription Information  Standard dose is 150 mg po daily taken at least one hour before or two hours after the ingestion of food  Cost: #30 150 mg tablets $2125.02
  • 25. Summary  Tarceva™, erlotinib, is a Human Epidermal Growth Receptor Type 1/ Epidermal growth Factor Receptor (HER1/EGFR) tyrosine kinase inhibitor.  Tarceva™ is indicated for the treatment of patients with locally advanced or metastatic non small cell lung cancer (NSCLC) after failure of at least one prior chemotherapy regimen.
  • 26. Summary  Dermatologic and GI side effects are common.  The incidence of Interstitial Lung Disease was the same as the placebo group (0.8%) in one trial.