Basic Pharmacology
Lindsay Williamson
ARNP, MSN, AOCNP
Bibliography
 Lindsay Williamson is board certified as an Advanced Oncology Certified Nurse
Practitioner as well as an Adult Nurse Practitioner. She received her BSN at West
Chester University in West Chester, Pennsylvania and her MSN at La Salle University
in Philadelphia, Pennsylvania. Lindsay has been an Oncology Nurse for 15 years with
7 of those years in the role of Nurse Practitioner. She has worked in a variety of
settings including inpatient and outpatient as well as community based and academic
based. Also, she has worked in a variety of roles including Oncology Staff Nurse,
Infusion Nurse, ARNP in a community practice, Pharmaceutical Sales
Representative, and Clinical Operations Manager of the Lab Draw and Infusion areas
at Moffitt Cancer Center. She is currently working with Florida Cancer Affiliates in
Trinity, Florida as an Oncology Nurse Practitioner. Lindsay is a member of the
Advanced Practice Society for Hematology and Oncology and the Oncology Nursing
Society.
Objectives
 Define the purposes of cancer therapy
 Describe the differences among chemotherapy,
hormonal therapy, immunotherapy and kinase
inhibitors
 Have a basic understanding of the different drug
classifications of chemotherapy, the different
types of hormonal therapy and the many targets
that therapies affect
 Have a basic understanding for common
toxicities for cancer treatments
 Define available resources for drug indications,
dosing and adverse effects profile
Cancer Therapy Goals
 Cure
 No evidence of disease (NED)
 Control
 Prolong length and quality of life, prevent distant and
possible unknown metastases
 Cure is not realistic
 Palliation
 Symptom management, improve comfort and quality
of life
 Appropriate when cure and control are not feasible
Cancer Therapy Overview
 Treatment types
 Manage disease and related symptoms
 Manage treatment toxicities
 Localized
• Surgery
• Radiation therapy
 Systemic
• PO, IV, IM, SQ, IT
 Neoadjvuant, Adjuvant, Induction, Maintenance, Metastatic
 Radiosensitizer
Cancer Therapy Agents
 Chemotherapy
 Hormonal Therapy
 Immunotherapy
 Therapeutic Antibodies
 Antibody-Drug Conjugates
 Kinase Inhibitors
 Other
Common Cancer Therapy
Side Effects
 Fatigue
 Myelosuppression
 Nausea/Vomiting
 Diarrhea/Constipation
 Mucositis
 Peripheral Neuropathy
 Alopecia
 Oncology Emergencies
 Tumor Lysis Syndrome, Hypercalcemia, SIADH
Tumor Response Factors
 Tumor burden
 Single agent versus combination therapy
 Receptor status
 Administration schedule
 Drug resistance
Cancer Therapy Limitations
 Toxicity of agents
 Lifetime dose
 Hypersensitivity reactions
 Drug resistance
 Secondary malignancies
Normal Cell Growth Principles
 Cell proliferation signals
 Normal cells stop dividing when a certain level
has been attained
 Cell division
 Body sends message to divide cell
 Contact Inhibition
 Cells stop dividing when they come in direct
contact with other cells
Development of Cancer Cells
 Carcinogenesis
 Process by which a normal cell converts to a tumor cell
 Initiation phase
 A biological, chemical, or physical change occurs to the cell
 Promotion phase
 Alteration of expression of cell (i.e. DNA)
 Conversion
 Act of change and continued alteration
 Progression
 Changes from pre-malignant to higher level of malignancy
Malignant Cell
 Uncontrolled proliferation
 Abnormal cell structure
 Accelerated use of nutrients
 Loss of contact inhibition
 Lack of adhesion
 Inability to differentiate fully
Benign versus Malignant
 Benign
 Regular and
consistent shape
 Small nucleus
 Well differentiated
 Orderly, controlled,
slow growth
 Rare
 No tissue destruction
 Usually encapsulated
 Malignant
 Irregular
 Nucleus larger than
normal and may have
multiple nuclei
 Undifferentiated
 Random, uncontrolled
growth
 Frequent mitosis
 Tissue destruction
Cell Cycle
 Definition
 Series of changes occurring from the time a cell is first formed until it
divides into two daughter cells
 G0
 Resting phase, non-dividing, most chemotherapy agents do not affect
cell during this phase
 G1
 RNA and protein synthesis (prepares for DNA), 8-48hours
 S phase
 DNA synthesis, cellular DNA doubles, preparing for mitosis, 10-20 hours
 G2
 DNA synthesis stops and prepares for cell division
 M phase
 Mitosis, separation of chromosomes and cell division, 1 hour
Cell Cycle
Chemotherapy
 Treatment of cancer cells with chemicals
 Cytotoxic-poisonous to cells
 Many new oral agents in last decade
 Types
 Combination therapy
• More than one drug
• More than one treatment modality either sequentially or
concurrently
 Adjuvant therapy
• Primary tumor eradiated by surgery or radiation prior to
chemotherapy
 Neo-adjuvant therapy
• Chemotherapy prior to radiation or surgery
Cell Kill Theory
 Explains the need for repeated doses
chemotherapy
 With each dose of chemotherapy, a specific
percent of cells are killed
 Belief that the same percent of cells are killed
each time chemotherapy is given
 Tumor cell kill increases as doses of
chemotherapy increase
 Theory limitation
 Cancer cells can mutate and develop resistance to
chemotherapy
Chemotherapy Classifications
 Phase cycle specific agents-only the cells
in a specific cycle are affected
 Cell cycle specific agents-effects are
mostly on the cells actively dividing
throughout cycle
 Cell cycle nonspecific agents-effects are
on cells at any phase
Chemotherapy Classifications
 Alkylating Agents
 Antimetabolites
 Antimicrotuble Agents
 Topoisomerase I Inhibitors
 Topoisomerase II Inhibitors
 Antitumor Antibiotics
 Aspariginase derivatives
 Hypomethylating Agents
 Other
Alkylating Agents
 Mechanisms of action: Interfere with DNA
replication through cross linking of DNA
strands, DNA strand breaking, and
abnormal base pairing of proteins
 Most agents are cell cycle nonspecific
 Activated by cytochrome p450
 Toxicities: Nausea/Vomiting,
Hematopoietic, Reproductive
Alkylating Agents
 Alkyl sulfonates
 Busulfan (Myleran); CML, Myelofibrosis
 Ethyleneimines
 Thiotepa (Thioplex); Breast, Ovarian
 Nitrogen mustards
 Bendamustine (Treanda, Ribomustin); CLL, NHL
 Chloambucil (Leukeran); HL, NHL, CLL
 Cyclophosphamide (Cytoxan);
• HL, NHL, MM, CML, AML, Breast
 Ifosfamide (Ifex); Testicular, Sarcoma
 Melphalan (Alkeran); MM
Alkylating Agents
 Nitrosoureas
 Most agents cross blood-brain barrier
 Carmustin (BICNU); Brain, MM, HL, NHL
 Lomustine (Gleostine)-oral agent: Brain, HL,
NHL
 Streptozotocin (Zanosar); Pancreatic
Alkylating Agents
 Platinum Analogues
 Cisplatin (Platinol)-heavy metal; Testicular,
Ovarian, Bladder, Lung
 Carboplatin (Paraplatin)-2nd generation
platinum analogue; Solid tumors
 Oxaliplatin (Eloxatin)-3rd generation platinum
analogue; Colorectal
 Triazenes
 Dacarbazine (DTIC); HL, Melanoma
 Temozolomide (Temodar); Brain
Alkylating Agents
 Other
 Procarbazine (Matulane); HL
Antimetabolites
 Mechanism of action: Inhibit DNA
synthesis by substituting metabolites or
structural analogues during DNA synthesis
 Most agents are phase cycle specific
 Toxicities: Hematopoietic and GI
Antimetabolites
 Folate Antagonists
 Methotrexate (Abitexate); Breast,
Osteosarcoma, H/N
 Pemetrexed (Alimta); Lung, Mesothelioma
 Pralatrexate (Folotyn); Peripheral T-cell
lymphoma
Antimetabolites
 Purine Antagonists
 cladribine (Leustatin); Hairy Cell Leukemia
 fludarabine phosphate (Fludara); CLL
 Pyrimidine Antagonists
 5 fluorouracil (5-FU); GI malignancies
 capecitabine (Xeloda)-oral agent; GI, Breast
 cytarabine (Cytosar); AML
 fluorouracil (Adrucil); GI, Pancreatic, Breast
 gemcitabine (Gemzar); Pancreatic, breast,
ovarian, Lung
Antimetabolites
 Other
 Hydroxyurea (Hydrea)-oral agent; P vera,
thrombocythemia, H/N
Antimicrotubule Agents
 Mechanism of action: Block cell division by
preventing microtubule function
 Plant derived
 Toxicities: Peripheral Neuropathy
Antimicrotuble Agents
 Epothilones
 Ixabepilone (Ixempra); Breast
 Halichonrin B analogue
 Eribulin mesylate (Halaven); Breast, Liposarcoma
 Taxanes
 Paclitaxel (Taxol); Breast, Ovarian, Lung, Sarcoma
 Albumin-bound paclitaxel, nab-paclitaxel (Abraxane);
Breast, Pancreatic, Lung
 Cabazitaxel (Jevtana); Prostate
Antimicrotubules
 Vinca Alkaloids
 Vinblastine (Velban, Velsar); HL, Testicular
 Vincristine (Vincasar PFS); HL, NHL, ALL,
Solid tumors
 Liposomal vincristine (Marqibo); ALL
 Vinorelbine (Navelbine); Lung, Breast
Topoisomerase I Inhibitors
Mechanism of action: Interferes with the
activity of topoisomerase in the process of
DNA replication
Toxicities: Nausea, vomiting, diarrhea,
abdominal cramping.
Topoisomerase I Inhibitors
 Camptothecin derivatives
 Irinotecan (Camptosar); Colorectal
 Topotecan (Hycamptin); Ovarian, Lung,
Cervical
Topoisomerase II Inhibitors
 Mechanism of action: Interferes with the
activity of topoisomerase in the process of
DNA replication
 Toxicities: Nausea, vomiting, diarrhea,
bone marrow suppression
 Anthracenedione
 Mitoxantrone (Novantrone); AML, Prostate
Topoisomerase II Inhibitors
 Anthracyclines
 Daunorubicin (Cerubidine); ALL, AML
 Doxorubicin (Adriamycin)-baseline EF;
Breast, Sarcoma
 Liposomal doxorubicin (Doxil); Ovarian,
Kaposi sarcoma
 Epirubicin (Ellence); Breast
 Idarubicin (Idamycin); AML
Topoisomerase II Inhibitors
 Epipodrophyllotoxins
 Etoposide (Toposar); Lung, Testicular
Antitumor Antibiotics
 Mechanism of action: DNA intercalation (insert
between two strands of DNA), generate highly
reactive free radicals that damage intercellular
molecules
 Toxicities: Bone marrow suppression
 Antitumor antibiotics
 Bleomycin (Blenoxane)- Pulmonary toxicities;
Lung, Testicular, NHL
 Mitomycin (Mutamycin)-Delayed bone marrow
suppression; Anal, Pancreatic, Stomach
Aspariginase Derivatives
 Mechanism of action: Catalyzes asparagine
deamidation resulting in decreased circulating
asparagine and cytotoxicity of asparagine-
dependent leukemic cells
 Toxicities: Hypersensitivity reaction,
hyperglycemia
 E. coli derived asparaginase (Elspar); ALL
 Pegaspargase (Oncaspar); ALL
Hypomethylating Agents
 Mechanism of action: Produces DNA
hypomethylation restoring normal tumor
suppressor gene function and control of
cellular differentiation and proliferation
 Toxicities: Bone marrow suppression
 Azacitidine (Vidaza); MDS
 Decitabine (Dacogen); MDS
Other Chemotherapy
 Other
 Arsenic trioxide (Trisenox); causes apoptosis-
like changes to NB4 human promyelocytic
leukemia cells in vitro; APL
 Trabectedine (Yondelis); binds and alkylates
DNA in the minor grove leading to disruption
of the cell cycle and eventual cell death;
Liposarcoma, Leiomyosarcoma
 Octreotide (Sandostatin); inhibits multiple
hormones including growth hormone,
glucagon, insulin and LH; Carcinoid tumors,
Hormonal Therapy
 Used in managing hormonally sensitive
cancers (Breast, Prostate, Ovarian, and
Endometrial cancer)
 Mechanism of action: The hormone
changes the hormonal environment that
alters growth factors thus the stimulus for
tumor growth is suppressed or removed
Side Effects of Hormonal Therapy
 Women
 Fatigue
 Hot flashes
 Mood swings
 Nausea
 Osteoporosis
 Weight gain
 Men
 Decreased sexual
desire
 Enlarged breasts
 Hot flashes
 Impotence
 Incontinence
 Osteoporosis
Examples of Hormonal Therapy
 Androgen receptor antagonists
 Aromatase Inhibitors
 Estrogen receptor antagonist
 Selective estrogen receptor modulator
(SERM)
 LH-RH (GnRh) analogues and antagonists
 Other
Androgen Receptor Antagonists
 Mechanism of action: Binds and inhibits
androgen receptors
 Bicalutamide (Casodex); Prostate
 Flutamide (Eulexin, Apimid); Prostate
 Enzalutamide (Xtandi); Prostate
Aromatase Inhibitors
 Mechanism of action: lowers the amount of
estrogen which signals hormone receptors.
Slows tumor growth by inhibiting this process.
Used in post-menopausal women with hormone
receptor positive breast cancer
 Toxicities: Arthralgia, vaginal dryness,
accelerated bone loss
 Letrozole (Femara); Breast
 Exemestane (Aromasin); Breast
 Anastrozole (Arimidex); Breast
Estrogen Receptor Antagonist
 Mechanism of action: Binds to estrogen
receptors and down regulates estrogen
receptor protein producing anti-estrogenic
effects
 Toxicities: Injection site pain, hot flashes,
arthralgia
 Fulvestrant (Faslodex); Breast
Selective Estrogen Receptor
Modulator (SERM)
 Mechanism of action: Selectively binds to
estrogen receptors producing anti-estrogenic
effects
 Toxicities: Hot flashes, vaginal dryness
 Tamoxifen (Nolvadex)-Need baseline GYN
exam; Breast, premenopausal
 Raloxifene (Evista, Keoxifene); Post
menopausal high risk for invasive breast cancer
Luteinizing Hormone-Releasing Hormone
 Agonists
 Suppress secretion of follicle-stimulating
hormone (FSH) and luteinizing hormone (LH)
from pituitary gland thus decreasing
testosterone levels
 Antagonists
 Works on the gonadotropin releasing
hormone
Luteinizing Hormone-Releasing
Hormone Agonists
 Leuprolide (Lupron)
 Gonadotropin-releasing hormone (GnRH)
agonist
 Indicated for prostate cancer
 Goserelin (Zoladex)
 Indicated for advanced breast and prostate
cancers
 Triptorelin (Trelstar)
 Indicated for ovarian and prostate cancers
Other Hormonal Agents
 abiraterone (Zytiga)-inhibits 17 alpha-
hydroxylase/C17,20-lyase to block androgen
biosynthesis leading to decreased androgen-
sensitive tumor growth; Prostate
 megestrol acetate (Megace)-agonizes
glucocorticoid receptors; Cancer related
anorexia;
 ketoconazole-inhibits fungal cell membrane
ergosterol synthesis; Prostate
Immunotherapy
 Also called Biological Response Modifier
Therapy
 Stimulate or restore immune system to
fight cancer cells
 Modify the relation between the tumor and
the host
 Includes antibodies, cytokines, and other
substances that stimulate immune function
Immunotherapy
 Types
 Interferon, interleukins, CTLA4, PD-1, cancer
vaccines
 Ipilimumab (Yervoy)-binds to CTLA-4 antigen
to block activity and augment T-cell activation
and proliferation; Melanoma
 Nivolumab (Opdivo)-binds to PD-1 receptor
on T-cells blocking PD-1 pathway mediated anti-
tumor immune response inhibition
Immunotherapy
 Pembrolizumab (Keytruda)-binds to PD-1
receptor on T-cells blocking PD-1 pathway
mediated anti-tumor immune response
inhibition; Melanoma, Lung
 Sipuleucel-T (Provenge)-Induces T-cell
mediated immune response targeted against
prostatic acid phosphate antigen; Prostate
Immunotherapy
 Taliminogene laherparepvec (Imlygic)-
Replicates within tumor and produces GM-
CSF inducing tumor cell death and
enhancing antitumor immune response;
genetically engineered oncolytic virus;
Melanoma
Interferon
 Mechanism of action: Antiviral (inhibits viral
replication), antiproliferative, and
immunomodulatory effects, activate and
increases cytotoxicity of natural killer cells,
enhances immune response
 Cytokines
 Alpha, beta, and gamma derivatives
 Interferon alfa 2b (Intron A); Hairy cell
leukemia, Melanoma, NHL, Hepatitis
Interleukins
 Mechanism of action: Stimulates T-
lymphocyte proliferation, enhances killer
T-cell activity, stimulates and enhances
natural killer cells
 Cytokines
 Produced by helper T-cells
 Aldesleukin (Proleukin); Renal cell,
Melanoma
Colony Stimulating Factors
 Red Cell
 Darbepoietin alpha (Aranesp)
 Epoetin alpha (Epogen, Procrit,
Erythropoietin)
 White Cell
 Filgrastim (Neupogen, G-CSF)
 Pegfilgrastim (Neulasta)
 Sargramostim (Leukine, GM-CSF)
Therapeutic Antibodies
 Engineered antibodies produced by a
single clone of cells that is specific for a
given antigen
 Passive immunotherapy
 Names end in “mab”
Therapeutic Antibodies
 Murine-mouse
 Humanized-human
 Human Anti-Murine Antibody (HAMA)
 Chimeric-part mouse/human
 Conjugated-a chemotherapy drug, radioactive
particle, or toxin is connected to monoclonal
antibody
 Unconjugated-monoclonal antibody without any
drug, radioactive particle, or toxin attached
Therapeutic Antibodies
Common Targets
 CD20
 CD52
 EFGR
 HER2
 PD 1
 PIGF
 VEGFA
Therapeutics Antibodies
 CD20
 Rituximab (Rituxan); NHL, RA
 Ibritumomab (Zevalin); NHL
 Ofatumumab (Arzerra); CLL
Therapeutic Antibodies
 EGFR
 Panitumumab (Vectibix); Colorectal
 Cetuximab (Erbitux); Colorectal, Squamous
H/N
 HER2
 Pertuzumab (Perjeta): HER2 positive Breast
 Trastuzumab (Herceptin); HER2 positive
Breast, HER2 positive Gastric
Therapeutic Antibodies
 PIGF
 Ziv-afibercept (Zaltrap); Colorectal
 RNAKL
 Denosumab (Xgeva); Solid tumor bone metastasis,
hypercalcemia, Giant cell tumor of bone
 VEGF
 Bevacizumab (Avastin); Colorectal, NSC Lung non
squamous, GBM, Renal cell, Cervical, Breast
 Ramucirumab (Cyramza); Gastric, NSC lung,
colorectal
Antibody-Drug Conjugates
 CD30
 Brentuximab vedotin (Adcetris); HL, Systemic
anaplatic large cell lymphoma
 HER2
 Ado trastuzumab emtansine (Kadcyla); HER2
positive breast
Kinase Inhibitors
 Mechanism of action: Enzyme inhibitor
that blocks the action of one or more
protein kinase which alters biological
processes including but no limited to
modulate cell function; Most names end in
“nib”
 Toxicities: Vary based on target
Kinase Inhibitors
 ABL
 Nilotinib (Tasigna); Ph-positive CML
 Dasatinib (Sprycel); Ph-positive CML
 Bosutinib (Bosuilf); Ph-positive CML
 ALK (anaplastic lymphoma kinase)
 Alectinib (Alecensa); ALK positive NSC Lung
 Ceritinib (Zykadia); ALK positive NSC Lung
 Crizotinib (Xalkori); ALK positive NSC Lung
Kinase Inhibitors
 BRAF
 Dabrafenib (Tafinlar); Melanoma
 Vemurafenib (Zelboraf); Melanoma
 BTK
 Ibrutinib (Imbruvica); CLL, Mantle cell
lymphoma
 CDK 4,6
 Palbociclib (Ibrance); ER/PR positive HER2
negative Breast
Kinase Inhibitors
 EGFR
 Osimertinib (Tagrisso) wild type sparing; NSC
Lung with EGFR T790M mutations
 Afatinib (Gilotrif, Tomtovok); NSC Lung with
EGFR exon 19 deletions or exon 21
 Erlotinib (Tarceva); NSC Lung with EGFR exon 19
deletions or exon 21, Pancreatic with gemcitabine
 Gefitinib (Iressa); NSC Lung with EGFR exon 19
deletions or exon 21 mutations
Kinase Inhibitors
 FLT3
 Sorafenib (Nexavar); Hepatocellular, Renal
Cell, Thyroid
 Sunitinib (Sutent); Renal Cell, GIST,
Pancreatic neuroendocrine
Kinase Inhibitors
 HER2 (ERBB2/neu)
 Afatinib (Gilotrif, Tomtovok); NCS Lung with
EGFR exon 19 deletions or exon 21
mutations
 Lapatinib (Tykerb); HER2 overexpressing
Breast
 JAK ½
 Ruxolitinib (Jakafi); Myelofibrosis,
Polycythema vera
Kinase Inhibitors
 KIT
 Axitinib (Inlyta); Renal cell
 Regorafenib (Stivarga); Colorectal, GIST
 Dasatinib (Sprycel); Ph-positive CML, Ph-
positive ALL
 Pasopanib (Votrient); Renal cell, Soft tissue
sarcoma
 Imatinib (Gleevac); Ph-positive CML
 Sunitinib (Sutent); Renal cell, GIST
Kinase Inhibitors
 MEK
 Trametinib (Mekinist); Melanoma
 mTOR
 Sirolimus (Rapamune); Kidney transplant
rejection prophylaxis
 Temsirolimus (Torisel); Renal cell
 Everolimus (Afinitor); ER/PR positive HER2
negative Breast, Pancreatic neuroendocrine,
Renal cell
Other Cancer Therapy
 PARP (poly (ADP-ribose) polymerase)
 Olaparib (Lynparza); BRCA-mutated Ovarian
 Proteasome
 Bortezomib (Velcade); Multiple Myeloma,
Mantle Cell Lymphoma
 Carfilzomib (Kyprolis); Multiple Myeloma
Other Cancer Therapy
 Other
 Pomalidomide (Pomalyst); Multiple Myeloma
 Lenalidomide (Revlimid); Multiple Myeloma,
MDS, Mantle Cell Lymphoma
 Thalidomide (Thalomid); Multiple Myeloma
Advanced Practice Considerations
 Maintain awareness of cancer agents and treatment
options
 Utilize Package Insert for drug details including dosing
and toxicity management
 Encourage supportive care to minimize toxicity
 Collaborate with respective disciplines
 Support patients physically (symptom management),
psychosocially (referrals to social work/case
management), emotionally (referrals to
psychology/support groups) and spiritually (refer to
chaplain/spiritual counselor)
Resources
 American Cancer Society
 1-800-813-HOPE (4673)
 http://www/cancer.org/
 National Cancer Institute
 1-800-4-CANCER (422-6237)
 http://www.cancer.gov/
 National Comprehensive Cancer Network
 http://www.nccn.org/
 Vanderbilt My Cancer Genome
 www.mycancergenome.org
References
 Adams, W. R., DeRemer, D., & Holdworth, M. T. (2005). Guide to
cancer chemotherapeutic regimens 2005. New York: McMahon
Publishing Group.
 American Cancer Society (2016). Retrieved February 3, 2016 from
http://www.cancer.org
 Anderson K. N. & Anderson, L. E. (1998). Mosby’s pocket dictionary
of medicine, nursing, and allied health. St. Louis: Mosby Inc.
 Baltzer Cleri, L. & Haywood, R. (2002). Oncology pocket guide to
chemotherapy 5th edition. New York: Mosby.
 Center for Disease Control (2016). Breast cancer among women.
Retrieved February 5, 2016 from http://www.cdc.gov/
 Kasper, D et all. (2005). Harrison’s Manual of Medicine 16th edition.
New York: McGraw-Hill.
 Katzung, B. (2004). Basic and Clinical Pharmacology 9th Edition.
Lange Medical Books/McGraw-Hill: New York.
References
 Kumar, R. & Yarmand-Bagheri, R. (2001). The role of HER2 in
angiogenesis. Seminars in Oncology, 28(5), 27-32
 Lynch, M. P. (2005). Essentials of oncology care. New York:
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 Michalides, RJAM (1999). Cell cycle regulators: mechanisms and
their role in the etiology, prognosis, and treatment of cancer. Journal
of Clinical Pathology 52, 555-568.
 Nursing 2007 Drug Handbook 27th Edition. (2007). Philadelphia:
Lippincott Williams & Wilkins.
 Peedell, C. (2005). Concise Clinical Oncology. Philadelphia:
Elsevier.
 Vanderbilt (2016). Retrieved February 3, 2016 from
www.mycancergenome.org
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and treatments. Cancer Care Inc.
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Basic Pharmacology

  • 1.
  • 2.
    Bibliography  Lindsay Williamsonis board certified as an Advanced Oncology Certified Nurse Practitioner as well as an Adult Nurse Practitioner. She received her BSN at West Chester University in West Chester, Pennsylvania and her MSN at La Salle University in Philadelphia, Pennsylvania. Lindsay has been an Oncology Nurse for 15 years with 7 of those years in the role of Nurse Practitioner. She has worked in a variety of settings including inpatient and outpatient as well as community based and academic based. Also, she has worked in a variety of roles including Oncology Staff Nurse, Infusion Nurse, ARNP in a community practice, Pharmaceutical Sales Representative, and Clinical Operations Manager of the Lab Draw and Infusion areas at Moffitt Cancer Center. She is currently working with Florida Cancer Affiliates in Trinity, Florida as an Oncology Nurse Practitioner. Lindsay is a member of the Advanced Practice Society for Hematology and Oncology and the Oncology Nursing Society.
  • 3.
    Objectives  Define thepurposes of cancer therapy  Describe the differences among chemotherapy, hormonal therapy, immunotherapy and kinase inhibitors  Have a basic understanding of the different drug classifications of chemotherapy, the different types of hormonal therapy and the many targets that therapies affect  Have a basic understanding for common toxicities for cancer treatments  Define available resources for drug indications, dosing and adverse effects profile
  • 4.
    Cancer Therapy Goals Cure  No evidence of disease (NED)  Control  Prolong length and quality of life, prevent distant and possible unknown metastases  Cure is not realistic  Palliation  Symptom management, improve comfort and quality of life  Appropriate when cure and control are not feasible
  • 5.
    Cancer Therapy Overview Treatment types  Manage disease and related symptoms  Manage treatment toxicities  Localized • Surgery • Radiation therapy  Systemic • PO, IV, IM, SQ, IT  Neoadjvuant, Adjuvant, Induction, Maintenance, Metastatic  Radiosensitizer
  • 6.
    Cancer Therapy Agents Chemotherapy  Hormonal Therapy  Immunotherapy  Therapeutic Antibodies  Antibody-Drug Conjugates  Kinase Inhibitors  Other
  • 7.
    Common Cancer Therapy SideEffects  Fatigue  Myelosuppression  Nausea/Vomiting  Diarrhea/Constipation  Mucositis  Peripheral Neuropathy  Alopecia  Oncology Emergencies  Tumor Lysis Syndrome, Hypercalcemia, SIADH
  • 8.
    Tumor Response Factors Tumor burden  Single agent versus combination therapy  Receptor status  Administration schedule  Drug resistance
  • 9.
    Cancer Therapy Limitations Toxicity of agents  Lifetime dose  Hypersensitivity reactions  Drug resistance  Secondary malignancies
  • 10.
    Normal Cell GrowthPrinciples  Cell proliferation signals  Normal cells stop dividing when a certain level has been attained  Cell division  Body sends message to divide cell  Contact Inhibition  Cells stop dividing when they come in direct contact with other cells
  • 11.
    Development of CancerCells  Carcinogenesis  Process by which a normal cell converts to a tumor cell  Initiation phase  A biological, chemical, or physical change occurs to the cell  Promotion phase  Alteration of expression of cell (i.e. DNA)  Conversion  Act of change and continued alteration  Progression  Changes from pre-malignant to higher level of malignancy
  • 12.
    Malignant Cell  Uncontrolledproliferation  Abnormal cell structure  Accelerated use of nutrients  Loss of contact inhibition  Lack of adhesion  Inability to differentiate fully
  • 13.
    Benign versus Malignant Benign  Regular and consistent shape  Small nucleus  Well differentiated  Orderly, controlled, slow growth  Rare  No tissue destruction  Usually encapsulated  Malignant  Irregular  Nucleus larger than normal and may have multiple nuclei  Undifferentiated  Random, uncontrolled growth  Frequent mitosis  Tissue destruction
  • 14.
    Cell Cycle  Definition Series of changes occurring from the time a cell is first formed until it divides into two daughter cells  G0  Resting phase, non-dividing, most chemotherapy agents do not affect cell during this phase  G1  RNA and protein synthesis (prepares for DNA), 8-48hours  S phase  DNA synthesis, cellular DNA doubles, preparing for mitosis, 10-20 hours  G2  DNA synthesis stops and prepares for cell division  M phase  Mitosis, separation of chromosomes and cell division, 1 hour
  • 15.
  • 16.
    Chemotherapy  Treatment ofcancer cells with chemicals  Cytotoxic-poisonous to cells  Many new oral agents in last decade  Types  Combination therapy • More than one drug • More than one treatment modality either sequentially or concurrently  Adjuvant therapy • Primary tumor eradiated by surgery or radiation prior to chemotherapy  Neo-adjuvant therapy • Chemotherapy prior to radiation or surgery
  • 17.
    Cell Kill Theory Explains the need for repeated doses chemotherapy  With each dose of chemotherapy, a specific percent of cells are killed  Belief that the same percent of cells are killed each time chemotherapy is given  Tumor cell kill increases as doses of chemotherapy increase  Theory limitation  Cancer cells can mutate and develop resistance to chemotherapy
  • 18.
    Chemotherapy Classifications  Phasecycle specific agents-only the cells in a specific cycle are affected  Cell cycle specific agents-effects are mostly on the cells actively dividing throughout cycle  Cell cycle nonspecific agents-effects are on cells at any phase
  • 19.
    Chemotherapy Classifications  AlkylatingAgents  Antimetabolites  Antimicrotuble Agents  Topoisomerase I Inhibitors  Topoisomerase II Inhibitors  Antitumor Antibiotics  Aspariginase derivatives  Hypomethylating Agents  Other
  • 20.
    Alkylating Agents  Mechanismsof action: Interfere with DNA replication through cross linking of DNA strands, DNA strand breaking, and abnormal base pairing of proteins  Most agents are cell cycle nonspecific  Activated by cytochrome p450  Toxicities: Nausea/Vomiting, Hematopoietic, Reproductive
  • 21.
    Alkylating Agents  Alkylsulfonates  Busulfan (Myleran); CML, Myelofibrosis  Ethyleneimines  Thiotepa (Thioplex); Breast, Ovarian  Nitrogen mustards  Bendamustine (Treanda, Ribomustin); CLL, NHL  Chloambucil (Leukeran); HL, NHL, CLL  Cyclophosphamide (Cytoxan); • HL, NHL, MM, CML, AML, Breast  Ifosfamide (Ifex); Testicular, Sarcoma  Melphalan (Alkeran); MM
  • 22.
    Alkylating Agents  Nitrosoureas Most agents cross blood-brain barrier  Carmustin (BICNU); Brain, MM, HL, NHL  Lomustine (Gleostine)-oral agent: Brain, HL, NHL  Streptozotocin (Zanosar); Pancreatic
  • 23.
    Alkylating Agents  PlatinumAnalogues  Cisplatin (Platinol)-heavy metal; Testicular, Ovarian, Bladder, Lung  Carboplatin (Paraplatin)-2nd generation platinum analogue; Solid tumors  Oxaliplatin (Eloxatin)-3rd generation platinum analogue; Colorectal  Triazenes  Dacarbazine (DTIC); HL, Melanoma  Temozolomide (Temodar); Brain
  • 24.
    Alkylating Agents  Other Procarbazine (Matulane); HL
  • 25.
    Antimetabolites  Mechanism ofaction: Inhibit DNA synthesis by substituting metabolites or structural analogues during DNA synthesis  Most agents are phase cycle specific  Toxicities: Hematopoietic and GI
  • 26.
    Antimetabolites  Folate Antagonists Methotrexate (Abitexate); Breast, Osteosarcoma, H/N  Pemetrexed (Alimta); Lung, Mesothelioma  Pralatrexate (Folotyn); Peripheral T-cell lymphoma
  • 27.
    Antimetabolites  Purine Antagonists cladribine (Leustatin); Hairy Cell Leukemia  fludarabine phosphate (Fludara); CLL  Pyrimidine Antagonists  5 fluorouracil (5-FU); GI malignancies  capecitabine (Xeloda)-oral agent; GI, Breast  cytarabine (Cytosar); AML  fluorouracil (Adrucil); GI, Pancreatic, Breast  gemcitabine (Gemzar); Pancreatic, breast, ovarian, Lung
  • 28.
    Antimetabolites  Other  Hydroxyurea(Hydrea)-oral agent; P vera, thrombocythemia, H/N
  • 29.
    Antimicrotubule Agents  Mechanismof action: Block cell division by preventing microtubule function  Plant derived  Toxicities: Peripheral Neuropathy
  • 30.
    Antimicrotuble Agents  Epothilones Ixabepilone (Ixempra); Breast  Halichonrin B analogue  Eribulin mesylate (Halaven); Breast, Liposarcoma  Taxanes  Paclitaxel (Taxol); Breast, Ovarian, Lung, Sarcoma  Albumin-bound paclitaxel, nab-paclitaxel (Abraxane); Breast, Pancreatic, Lung  Cabazitaxel (Jevtana); Prostate
  • 31.
    Antimicrotubules  Vinca Alkaloids Vinblastine (Velban, Velsar); HL, Testicular  Vincristine (Vincasar PFS); HL, NHL, ALL, Solid tumors  Liposomal vincristine (Marqibo); ALL  Vinorelbine (Navelbine); Lung, Breast
  • 32.
    Topoisomerase I Inhibitors Mechanismof action: Interferes with the activity of topoisomerase in the process of DNA replication Toxicities: Nausea, vomiting, diarrhea, abdominal cramping.
  • 33.
    Topoisomerase I Inhibitors Camptothecin derivatives  Irinotecan (Camptosar); Colorectal  Topotecan (Hycamptin); Ovarian, Lung, Cervical
  • 34.
    Topoisomerase II Inhibitors Mechanism of action: Interferes with the activity of topoisomerase in the process of DNA replication  Toxicities: Nausea, vomiting, diarrhea, bone marrow suppression  Anthracenedione  Mitoxantrone (Novantrone); AML, Prostate
  • 35.
    Topoisomerase II Inhibitors Anthracyclines  Daunorubicin (Cerubidine); ALL, AML  Doxorubicin (Adriamycin)-baseline EF; Breast, Sarcoma  Liposomal doxorubicin (Doxil); Ovarian, Kaposi sarcoma  Epirubicin (Ellence); Breast  Idarubicin (Idamycin); AML
  • 36.
    Topoisomerase II Inhibitors Epipodrophyllotoxins  Etoposide (Toposar); Lung, Testicular
  • 37.
    Antitumor Antibiotics  Mechanismof action: DNA intercalation (insert between two strands of DNA), generate highly reactive free radicals that damage intercellular molecules  Toxicities: Bone marrow suppression  Antitumor antibiotics  Bleomycin (Blenoxane)- Pulmonary toxicities; Lung, Testicular, NHL  Mitomycin (Mutamycin)-Delayed bone marrow suppression; Anal, Pancreatic, Stomach
  • 38.
    Aspariginase Derivatives  Mechanismof action: Catalyzes asparagine deamidation resulting in decreased circulating asparagine and cytotoxicity of asparagine- dependent leukemic cells  Toxicities: Hypersensitivity reaction, hyperglycemia  E. coli derived asparaginase (Elspar); ALL  Pegaspargase (Oncaspar); ALL
  • 39.
    Hypomethylating Agents  Mechanismof action: Produces DNA hypomethylation restoring normal tumor suppressor gene function and control of cellular differentiation and proliferation  Toxicities: Bone marrow suppression  Azacitidine (Vidaza); MDS  Decitabine (Dacogen); MDS
  • 40.
    Other Chemotherapy  Other Arsenic trioxide (Trisenox); causes apoptosis- like changes to NB4 human promyelocytic leukemia cells in vitro; APL  Trabectedine (Yondelis); binds and alkylates DNA in the minor grove leading to disruption of the cell cycle and eventual cell death; Liposarcoma, Leiomyosarcoma  Octreotide (Sandostatin); inhibits multiple hormones including growth hormone, glucagon, insulin and LH; Carcinoid tumors,
  • 41.
    Hormonal Therapy  Usedin managing hormonally sensitive cancers (Breast, Prostate, Ovarian, and Endometrial cancer)  Mechanism of action: The hormone changes the hormonal environment that alters growth factors thus the stimulus for tumor growth is suppressed or removed
  • 42.
    Side Effects ofHormonal Therapy  Women  Fatigue  Hot flashes  Mood swings  Nausea  Osteoporosis  Weight gain  Men  Decreased sexual desire  Enlarged breasts  Hot flashes  Impotence  Incontinence  Osteoporosis
  • 43.
    Examples of HormonalTherapy  Androgen receptor antagonists  Aromatase Inhibitors  Estrogen receptor antagonist  Selective estrogen receptor modulator (SERM)  LH-RH (GnRh) analogues and antagonists  Other
  • 44.
    Androgen Receptor Antagonists Mechanism of action: Binds and inhibits androgen receptors  Bicalutamide (Casodex); Prostate  Flutamide (Eulexin, Apimid); Prostate  Enzalutamide (Xtandi); Prostate
  • 45.
    Aromatase Inhibitors  Mechanismof action: lowers the amount of estrogen which signals hormone receptors. Slows tumor growth by inhibiting this process. Used in post-menopausal women with hormone receptor positive breast cancer  Toxicities: Arthralgia, vaginal dryness, accelerated bone loss  Letrozole (Femara); Breast  Exemestane (Aromasin); Breast  Anastrozole (Arimidex); Breast
  • 46.
    Estrogen Receptor Antagonist Mechanism of action: Binds to estrogen receptors and down regulates estrogen receptor protein producing anti-estrogenic effects  Toxicities: Injection site pain, hot flashes, arthralgia  Fulvestrant (Faslodex); Breast
  • 47.
    Selective Estrogen Receptor Modulator(SERM)  Mechanism of action: Selectively binds to estrogen receptors producing anti-estrogenic effects  Toxicities: Hot flashes, vaginal dryness  Tamoxifen (Nolvadex)-Need baseline GYN exam; Breast, premenopausal  Raloxifene (Evista, Keoxifene); Post menopausal high risk for invasive breast cancer
  • 48.
    Luteinizing Hormone-Releasing Hormone Agonists  Suppress secretion of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from pituitary gland thus decreasing testosterone levels  Antagonists  Works on the gonadotropin releasing hormone
  • 49.
    Luteinizing Hormone-Releasing Hormone Agonists Leuprolide (Lupron)  Gonadotropin-releasing hormone (GnRH) agonist  Indicated for prostate cancer  Goserelin (Zoladex)  Indicated for advanced breast and prostate cancers  Triptorelin (Trelstar)  Indicated for ovarian and prostate cancers
  • 50.
    Other Hormonal Agents abiraterone (Zytiga)-inhibits 17 alpha- hydroxylase/C17,20-lyase to block androgen biosynthesis leading to decreased androgen- sensitive tumor growth; Prostate  megestrol acetate (Megace)-agonizes glucocorticoid receptors; Cancer related anorexia;  ketoconazole-inhibits fungal cell membrane ergosterol synthesis; Prostate
  • 51.
    Immunotherapy  Also calledBiological Response Modifier Therapy  Stimulate or restore immune system to fight cancer cells  Modify the relation between the tumor and the host  Includes antibodies, cytokines, and other substances that stimulate immune function
  • 52.
    Immunotherapy  Types  Interferon,interleukins, CTLA4, PD-1, cancer vaccines  Ipilimumab (Yervoy)-binds to CTLA-4 antigen to block activity and augment T-cell activation and proliferation; Melanoma  Nivolumab (Opdivo)-binds to PD-1 receptor on T-cells blocking PD-1 pathway mediated anti- tumor immune response inhibition
  • 53.
    Immunotherapy  Pembrolizumab (Keytruda)-bindsto PD-1 receptor on T-cells blocking PD-1 pathway mediated anti-tumor immune response inhibition; Melanoma, Lung  Sipuleucel-T (Provenge)-Induces T-cell mediated immune response targeted against prostatic acid phosphate antigen; Prostate
  • 54.
    Immunotherapy  Taliminogene laherparepvec(Imlygic)- Replicates within tumor and produces GM- CSF inducing tumor cell death and enhancing antitumor immune response; genetically engineered oncolytic virus; Melanoma
  • 55.
    Interferon  Mechanism ofaction: Antiviral (inhibits viral replication), antiproliferative, and immunomodulatory effects, activate and increases cytotoxicity of natural killer cells, enhances immune response  Cytokines  Alpha, beta, and gamma derivatives  Interferon alfa 2b (Intron A); Hairy cell leukemia, Melanoma, NHL, Hepatitis
  • 56.
    Interleukins  Mechanism ofaction: Stimulates T- lymphocyte proliferation, enhances killer T-cell activity, stimulates and enhances natural killer cells  Cytokines  Produced by helper T-cells  Aldesleukin (Proleukin); Renal cell, Melanoma
  • 57.
    Colony Stimulating Factors Red Cell  Darbepoietin alpha (Aranesp)  Epoetin alpha (Epogen, Procrit, Erythropoietin)  White Cell  Filgrastim (Neupogen, G-CSF)  Pegfilgrastim (Neulasta)  Sargramostim (Leukine, GM-CSF)
  • 58.
    Therapeutic Antibodies  Engineeredantibodies produced by a single clone of cells that is specific for a given antigen  Passive immunotherapy  Names end in “mab”
  • 59.
    Therapeutic Antibodies  Murine-mouse Humanized-human  Human Anti-Murine Antibody (HAMA)  Chimeric-part mouse/human  Conjugated-a chemotherapy drug, radioactive particle, or toxin is connected to monoclonal antibody  Unconjugated-monoclonal antibody without any drug, radioactive particle, or toxin attached
  • 60.
    Therapeutic Antibodies Common Targets CD20  CD52  EFGR  HER2  PD 1  PIGF  VEGFA
  • 61.
    Therapeutics Antibodies  CD20 Rituximab (Rituxan); NHL, RA  Ibritumomab (Zevalin); NHL  Ofatumumab (Arzerra); CLL
  • 62.
    Therapeutic Antibodies  EGFR Panitumumab (Vectibix); Colorectal  Cetuximab (Erbitux); Colorectal, Squamous H/N  HER2  Pertuzumab (Perjeta): HER2 positive Breast  Trastuzumab (Herceptin); HER2 positive Breast, HER2 positive Gastric
  • 63.
    Therapeutic Antibodies  PIGF Ziv-afibercept (Zaltrap); Colorectal  RNAKL  Denosumab (Xgeva); Solid tumor bone metastasis, hypercalcemia, Giant cell tumor of bone  VEGF  Bevacizumab (Avastin); Colorectal, NSC Lung non squamous, GBM, Renal cell, Cervical, Breast  Ramucirumab (Cyramza); Gastric, NSC lung, colorectal
  • 64.
    Antibody-Drug Conjugates  CD30 Brentuximab vedotin (Adcetris); HL, Systemic anaplatic large cell lymphoma  HER2  Ado trastuzumab emtansine (Kadcyla); HER2 positive breast
  • 65.
    Kinase Inhibitors  Mechanismof action: Enzyme inhibitor that blocks the action of one or more protein kinase which alters biological processes including but no limited to modulate cell function; Most names end in “nib”  Toxicities: Vary based on target
  • 66.
    Kinase Inhibitors  ABL Nilotinib (Tasigna); Ph-positive CML  Dasatinib (Sprycel); Ph-positive CML  Bosutinib (Bosuilf); Ph-positive CML  ALK (anaplastic lymphoma kinase)  Alectinib (Alecensa); ALK positive NSC Lung  Ceritinib (Zykadia); ALK positive NSC Lung  Crizotinib (Xalkori); ALK positive NSC Lung
  • 67.
    Kinase Inhibitors  BRAF Dabrafenib (Tafinlar); Melanoma  Vemurafenib (Zelboraf); Melanoma  BTK  Ibrutinib (Imbruvica); CLL, Mantle cell lymphoma  CDK 4,6  Palbociclib (Ibrance); ER/PR positive HER2 negative Breast
  • 68.
    Kinase Inhibitors  EGFR Osimertinib (Tagrisso) wild type sparing; NSC Lung with EGFR T790M mutations  Afatinib (Gilotrif, Tomtovok); NSC Lung with EGFR exon 19 deletions or exon 21  Erlotinib (Tarceva); NSC Lung with EGFR exon 19 deletions or exon 21, Pancreatic with gemcitabine  Gefitinib (Iressa); NSC Lung with EGFR exon 19 deletions or exon 21 mutations
  • 69.
    Kinase Inhibitors  FLT3 Sorafenib (Nexavar); Hepatocellular, Renal Cell, Thyroid  Sunitinib (Sutent); Renal Cell, GIST, Pancreatic neuroendocrine
  • 70.
    Kinase Inhibitors  HER2(ERBB2/neu)  Afatinib (Gilotrif, Tomtovok); NCS Lung with EGFR exon 19 deletions or exon 21 mutations  Lapatinib (Tykerb); HER2 overexpressing Breast  JAK ½  Ruxolitinib (Jakafi); Myelofibrosis, Polycythema vera
  • 71.
    Kinase Inhibitors  KIT Axitinib (Inlyta); Renal cell  Regorafenib (Stivarga); Colorectal, GIST  Dasatinib (Sprycel); Ph-positive CML, Ph- positive ALL  Pasopanib (Votrient); Renal cell, Soft tissue sarcoma  Imatinib (Gleevac); Ph-positive CML  Sunitinib (Sutent); Renal cell, GIST
  • 72.
    Kinase Inhibitors  MEK Trametinib (Mekinist); Melanoma  mTOR  Sirolimus (Rapamune); Kidney transplant rejection prophylaxis  Temsirolimus (Torisel); Renal cell  Everolimus (Afinitor); ER/PR positive HER2 negative Breast, Pancreatic neuroendocrine, Renal cell
  • 73.
    Other Cancer Therapy PARP (poly (ADP-ribose) polymerase)  Olaparib (Lynparza); BRCA-mutated Ovarian  Proteasome  Bortezomib (Velcade); Multiple Myeloma, Mantle Cell Lymphoma  Carfilzomib (Kyprolis); Multiple Myeloma
  • 74.
    Other Cancer Therapy Other  Pomalidomide (Pomalyst); Multiple Myeloma  Lenalidomide (Revlimid); Multiple Myeloma, MDS, Mantle Cell Lymphoma  Thalidomide (Thalomid); Multiple Myeloma
  • 75.
    Advanced Practice Considerations Maintain awareness of cancer agents and treatment options  Utilize Package Insert for drug details including dosing and toxicity management  Encourage supportive care to minimize toxicity  Collaborate with respective disciplines  Support patients physically (symptom management), psychosocially (referrals to social work/case management), emotionally (referrals to psychology/support groups) and spiritually (refer to chaplain/spiritual counselor)
  • 76.
    Resources  American CancerSociety  1-800-813-HOPE (4673)  http://www/cancer.org/  National Cancer Institute  1-800-4-CANCER (422-6237)  http://www.cancer.gov/  National Comprehensive Cancer Network  http://www.nccn.org/  Vanderbilt My Cancer Genome  www.mycancergenome.org
  • 77.
    References  Adams, W.R., DeRemer, D., & Holdworth, M. T. (2005). Guide to cancer chemotherapeutic regimens 2005. New York: McMahon Publishing Group.  American Cancer Society (2016). Retrieved February 3, 2016 from http://www.cancer.org  Anderson K. N. & Anderson, L. E. (1998). Mosby’s pocket dictionary of medicine, nursing, and allied health. St. Louis: Mosby Inc.  Baltzer Cleri, L. & Haywood, R. (2002). Oncology pocket guide to chemotherapy 5th edition. New York: Mosby.  Center for Disease Control (2016). Breast cancer among women. Retrieved February 5, 2016 from http://www.cdc.gov/  Kasper, D et all. (2005). Harrison’s Manual of Medicine 16th edition. New York: McGraw-Hill.  Katzung, B. (2004). Basic and Clinical Pharmacology 9th Edition. Lange Medical Books/McGraw-Hill: New York.
  • 78.
    References  Kumar, R.& Yarmand-Bagheri, R. (2001). The role of HER2 in angiogenesis. Seminars in Oncology, 28(5), 27-32  Lynch, M. P. (2005). Essentials of oncology care. New York: Professional Publishing Group, Ltd.  Michalides, RJAM (1999). Cell cycle regulators: mechanisms and their role in the etiology, prognosis, and treatment of cancer. Journal of Clinical Pathology 52, 555-568.  Nursing 2007 Drug Handbook 27th Edition. (2007). Philadelphia: Lippincott Williams & Wilkins.  Peedell, C. (2005). Concise Clinical Oncology. Philadelphia: Elsevier.  Vanderbilt (2016). Retrieved February 3, 2016 from www.mycancergenome.org  Von Roenn, J. H. (2006). Your guide to the latest cancer research and treatments. Cancer Care Inc.  Wilkes, G. M. & Barton-Burke, M. (2005). Oncology nursing handbook 2005. Boston: Jones and Bartlett Publishers.