Exam 2 Flashcards
Types of Skin Cancer
- Basal Cell Skin (BCS) cancer
- Squamous cell skin (SCS) cancer
- Melanoma: most metastasis-prone type
Risk factors for skin cancer
- Ultraviolet (UV) light exposure
- Moles
- Fair skin, freckling, light hair
- Familial hx of melanoma
Melanoma diagnosis: ABCDE
- Asymmetry: one side is different from the other
- Border: irregular, notched, blurred
- Color: mixed
- Diameter: larger than 6 mm
- Evolve: mole evolves over time
Melanoma staging: I ~ V
- Confined to the epidermis; “in situ”
- Invasion of the papillary dermis
- Filling of the papillary dermis but not extending to the reticular dermis
- Invasion of the reticular dermis
- Invasion of the deep, SQ tissue
Familial vs Sporadic melanoma
- Familial: germline mutation of CDKN2A, CDK4) encoding for p16INK4A and p14ARF
- Sporadic: random acquired mutations in p16INK4A
Targeted therapy:
- Most common mutation
- Regimens
- Target cancer’s specific protein(s) that contributes to the growth and survival of cells
- Most common BRAF mutation: V600E → vemurafenib, dabrafenib
- Targeted MEK inhibitor → trametinib
- BRAF + MEK = standard of care for melanoma
Immunotherapy: checkpoint targets, (+), (-)
- Immune checkpoints: PD-1/-L1 axis, CTLA-4
- (+): pts own immune system to destroy cancer cells, memory against cancer specific antigens result in more durable response, improve efficacy when used in combination
- (-): autoimmune disease, resistance, heterogenous response
Systemic therapy: Immune Checkpoint Inhibitors (ICIs)
- MoA
- Formulation
- Drug - target
- Block target protein “checkpoints” to turn on an immune response
- IV formulation
- Ipilimumab - CTLA-4
- Pembrolizumab, Nivolumab - PD-1
- Atezolizumab - PD-L1
- Relatlimab - LAG-3
Systemic therapy: BRAF/MEK inhibitor targeted therapy
- Why given together?
- Formulation
- BRAF + MEK drugs
- Prolong time to resistance
- Improve toxicity profile
- Increase overall efficacy
- Oral formulation
- Dabrafenib + Trametinib
- Vemurafenib + Cobimetinib
- Encorafenib + Binimetinib
Treatment by stage (Localized)
- Stage 0 in situ or 1A
- Stage IB or II
- Wide excision
- Wide excision +/- sentinel node biopsy
- Early stage = surgical resection
Adjuvant tx for resected Stage III melanoma
- Stage IIIA (sentinel node +), IIIB/C/D (SN+)
- Adjuvant treatment
- Nodal basin ultrasound surveillance or complete lymph node dissection + systemic therapy or observation based on risk of recurrence
- Nivolumab: Stage IIIB/C
- Pembrolizumab: Stage IIIA w/ sentinel lymph node (SLN) metastasis >1 mm or stage IIIB/C
- Dabrafenib+Trametinib: pts w/ BRAF V600 activating mutations; stage IIIA with SNL mets >1 mm or stage IIIB/C
Treatment by stage: Unresectable
- Stage III (satellite/ in-transit lesions)
Intralesional injections, local ablation, topical imiquimod
What is Talimogene laherparepvec (T-VEC)?
- Indication
- MoA
- Administration
- Dosing (Max dose per visit)
- AEs
- Monitor/Precautions
- Oncolytic virus based on HSV-1
- Unresectable stage III melanoma with in-transit or satellite lesions
- Selectively infects, replicates inside, destroys cancer cells
- Intralesional injection
- Inject from largest to smallest; max = 4 mL
- Chills, fatigue, fever, injection site pain, N, flu-like
- Viral transmission risk
Treatment by stage: Metastatic Melanoma First-line therapy (systemic)
- Combination ICI
- Monotherapy ICI
- BRAF V600-activating mutations
Combination ICI (preferred)
- Nivolumab + ipilimumab/relatlimab
Monotherapy ICI
- Pembrolizumab
- Nivolumab
BRAF V600-activating Mutations
- Dabrafenib + trametinib
- Vemurafenib + Cobimetinib
- Encorafenib + binimetinib
ICI vs BRAF/MEK as 1st line for pts w/ BRAF V600-activating mutations
- Rapidly growing, symptomatic
- Slow growing, asymptomatic
- Start with BRAF/MEK, faster onset
- Start with ICI due to increased overall survival
Risk factors associated with VTE in cancer patients: Patient-/Treatment-/Tumor-related
- Age, comorbidities, immobilization (hospitalization), previous VTE, hereditary thrombophilia
- Chemo, hormonal, RBC transfusions & erythropoiesis-stimulating agents, surgery, radiation, central venous catheters
- Tumor type (VH: gastric pancreas, brain, H: lung, hematologic, gynecologic, renal, bladder), advanced stage, localized tumor compression
Prevention of VTE in Inpatient
Enoxaparin, Dalteparin, Fondaparinux, Heparin
Prevention of VTE in Outpatient (Ambulatory): Criteria, Recommended agents, Duration
- Cancer patients, high-risk (Khorana score 2), receiving/starting chemotherapy
- DOACs: apixaban, rivaroxaban
- LMWH: enoxaparin, dalteparin
- <6 months
Initial treatment of VTE
Enoxaparin, Dalteparin, Rivaroxaban, Apixaban
Maintenance treatment of VTE: agents & duration
- Enoxaparin, Dalteparin, Rivaroxaban, Apixaban, Edoxaban
- Duration >3 months
Risk factors for extravasation: Infusion procedure-/Patient-/Drug-related
- Peripheral > central access
- Small & fragile veins, multiple previous venipunctures, obesity, conditions with an altered or impaired circulation, communication difficulties or young children
- Overall vesicant properties of the drug
Vesicants Chemotherapeutic drugs (ABC MTV)
Anthracyclines, Bendamustine, Cisplatin, Mitoxantrone, Taxanes, Vinca alkaloids
Prevention of extravasation
- Education and training of HCP
- Ensure appropriate vascular access
- Selection of appropriate cannula and needle
- Patient education
- Development of local institutional guideline for prevention and management of extravasation
Management of anthracyclines, alkylating agents: Localize & Neutralize by ___
- Localize by applying cold compresses for 20 mins QID for 1-2 days
- Neutralize by using specific antidotes
Management of vinca alkaloids, taxanes: Disperse & Dilute by ___
- Disperse by applying warm compresses for 20 mins QID for 1-2 days
- Dilute by administering agents that increase absorption of extravasated drugs
Antidote Dexrazoxane: Indication, MoA, Dose, Warning
- Tx of extravasation of anthracyclines, prevent anthracycline-induced cardiomyopathy
- Reversibly inhibit topoisomerase II
- Begin ASAP but within 6 hrs
- Withhold cooling compresses at least 15 mins before and during infusion
Antidote Dimethyl Sulfoxide (DMSO): Indication, MoA, Dose, Warning
- Tx extravasation of anthracyclines, mitoxantrone, cisplatin (alternative)
- Free-radical scavenging properties, can speed up the removal of extravasated drugs from tissues
- Topically, begin within 10 mins, do not cover
Dexrazoxane & DMSO can be used concomitantly: True or False
False; should not be used concomitantly
Antidote Hyaluronidase: Indication, MoA, Dose
- Tx extravasation of vinca alkaloids & taxanes
- Degrade hyaluronic acid in the extracellular matrix, modifying the permeability of the connective tissue, increases the dispersion and absorption of extravasated drugs
- IV if needle/cannula still in place
- SQ in a clockwise manner if removed
Antidote Sodium Thiosulfate: Indication, MoA, Dose
- Tx extravasation of cisplatin, bendamustine
- Create alkaline-rich site, to which alkylating agents have an affinity, thereby neutralize
- Bendamustine: SQ
- Cisplatin IV, SQ
Risk factors of mucositis: Patient vs Treatment specific
- Smoking/tobacco use, poor baseline oral hygiene, younger age, female, pretreatment nutritional status
- Head/neck cancers, combined chemo & radiation, treatment duration, dose of therapy
Grading of oral mucositis: CTCAE Grade 1-5
- Asymptomatic or mild symptoms; indication not indicated
- Moderate pain or ulcer that does not interfere with oral intake; modified diet indicated
- Severe pain; interfering with oral intake
- Life-threatening; urgent intervention indicated
- Death
Grading of oral mucositis: WHO
Grade 0-4
0: None
1: Soreness/ erythema
2: Erythema/ ulcers/ can eat solids
3: Ulcers/ requires liquid diet
4: Alimentation not possible
Mucositis Prevention: basic oral care
- Brush teeth with soft toothbrush at least BID
- Floss teeth at least once daily
- Rinse mouth four times daily with bland mouth rinse (sodium bicarbonate, normal saline, or tap water)
Mucositis Prevention: cryotherapy
- Application of ice or cold substance (popsicles, ice cream) to mouth immediately before, during, and after administration of chemotherapy
- Vasoconstriction of the blood vessels leading to reduced BF, and lower a local [ ] of chemo
- Evidence is limited; melphalan, 5-FU (bolus)
Mucositis Prevention: L-glutamine
- AA associated w/ cell proliferation and survival
- MoA: decrease cell death of mucosal tissue
- Limited data
Mucositis Prevention: Palifermin
- MoA: recombinant keratinocyte GF that directly stimulates proliferation of epithelial cells
- Indication: autologous hematopoietic stem cell transplant where WHO grade 3
- Warnings: administration w/i 24 hrs may increase mucositis, potential for stimulation of tumor growth
- AEs: edema, skin rash
Mucositis Treatment: “Magic” Mouthwash ingredients, MoA, AEs
- Diphenhydramine + aluminum OH + lidocaine +/- nystatin
- Antihistamine: reduces histamine release/inflammation
- Antacid: coats the mouth and increase pH
- Local anesthetic (lidocaine): provide pain relief/numbing
- Nystatin: prevention/tx of oral thrush caused by Candida sp
- AEs: taste disturbances, burning/tingling sensation in mouth
Mucositis Treatment: sucralfate MoA, D/I
- MoA: create coating on the mucosa that can help create a protective barrier
- X decrease mucositis, but decrease bacterial colonization
- D/I: separate meds by 1 hr before or 2 hrs after
Mucositis Types of pain
- Visceral: Nociceptors in thoracic, pelvic, abdominal (internal organs)
- Somatic: Arises from nociceptors in skin/ soft tissue, muscle
- Neuropathic: Direct damage to somatosensory neurons
- Psychological pain: Trauma of past procedures, prognosis, understanding of pain
(M) 5 A’s of pain management
- Analgesia: minimize pain perception
- Activities: optimize QoL and activities of daily living (ADL)
- AEs: minimize both SEs of analgesic & uncontrolled pain
- Aberrant drug taking: use lowest dosages, assess safety of pain management and follow up when dosages are increased/ reduced
- Affect: patients’ mood/ perception of QoL
(M) Opioid therapy: MoA, Use, AEs
- Bind to opioid receptors in CNS, inhibiting ascending pain pathway to alter the perception to pain
- Moderate to severe pain not related to an oncologic emergencies (spinal cord compression)
- Constipation
(M) Opioid Naive patients
- Start & titrate short acting agents Q3-4H PRN
- If multiple doses of SA opioid needed per day, consider addition of long acting opioid
(M) Short-acting opioids
Oxycodone IR, Hydrocodone w/ APAP, Hydromorphone, Morphine IR
(M) Long-acting opioids
Oxycodone ER, Methadone, Fentanyl transdermal patches
(M) Opioid Tolerant patients
- Pts already taking SAO: titrate doses up PRN to achieve analgesia (30-100%)
- If multiple doses of SAO needed per day, consider addition of LAO
(M) Acute Pain Crisis first line tx
Hospitalization or inpatient hospice, PCA
What is Patient-controlled analgesic (PCA)?
- Programmable IV infusion device that allows the pt/caregiver to administer their own pain relief while “capping” the max amount of opioids at safe determined dosages
- Basal: continuous infusion of opioid provided at set dosage to the pt each hr
- Bolus: delivered when button is pressed by pt. Device programmed w/ predetermined max bolus doses allowed per hr (=“lock-out”)
Risk factors of colorectal cancer: Modifiable
Obesity/ high BMI, Low physical activity, Alcohol consumption, Smoking, High consumption of meat and processed foods, Low intake of fruits and vegetables
Risk factors of colorectal cancer: Non-Modifiable
Male, Age >50 yrs, Family hx, Genetic predisposition, Adenomatous polyps, Inflammatory bowel disease (IBD), DM
(CC) Screening recommendations for general populations vs high-risk
General: Colonoscopy every 10 yrs (Start 45 yo)
High-risk: Lynch syndrome, Peutz-Jeghers syndrome
Colonoscopy more frequently
(CC) FOLFOX
- Folinic acid (leucovorin)
- Fluorouracil
- Oxaliplatin
(CC) CapeOX
- Capecitabine
- Oxaliplatin
(CC) FOLFoxIRI
- Folinic acid (leucovorin)
- Fluorouracil
- Oxaliplatin
- Irinotecan
(CC) FOLFIRI
- Folinic acid (leucovorin)
- Fluorouracil
- Irinotecan
(CC) First-line treatment: Stage I Goal, First-line
- Cure
- Surgical excision of primary tumor and removal of regional lymph nodes
- Adjuvant chemo not recommended
(CC) First-line treatment: Stage II (Low Risk) Goal, First-line
- Cure
- Surgery, observation
- Adjuvant chemo can be considered but rarely
(CC) First-line treatment: Stage II (High Risk) Goal, First-line
- Cure
- Surgery → 5-FU or Capecitabine or FOLFOX or CAPEOX
- Adjuvant chemo can be considered if: poorly differentiated histology, lymphovascular invasion, perineural invasion, bowel obstruction, localized perforation, close/indeterminate or positive margins, <12 lymph nodes surgically examined
(CC) First-line treatment: Stage III (Low Risk) Goal, First-line
- Cure
- Surgery → CAPEOX (3 months) or FOLFOX (3-6 months)
- Adjuvant chemo recommended for all patients
(CC) First-line treatment: Stage III (High Risk) Goal, First-line
- Cure
- Surgery → CAPEOX (3-6 months) or FOLFOX (3-6 months)
- Adjuvant chemo recommended for all patients
(CC) First-line treatment: Stage IV Goal, First-line
- Palliative
- (FOLFOX or CAPEOX or FOLFIRI or FOLFOXIRI) +/- bevacizumab
- KRAS/NRAS/BRAF WT and left-sided tumors only: 1) FOLFOX + (cetuximab or panitumumab) 2) FOLFIRI + (cetuximab or panitumumab)
- dMMR/MSI-H only: 1) Nivolumab +/- ipilimumab 2) pembrolizumab
(CC) Fluorouracil (5-FU): formuation, PK, AEs
- Pyrimidine analog (antimetabolite)
- Infusional
- Metabolized to form active metabolites → interfere with DNA/RNA synthesis: F-UMP, F-dUMP
- Very short t ½ → used in combination w/ leucovorin
- Eliminated via dihydropyridine dehydrogenase (DPD)
- AEs: hand-foot syndrome
(CC) Capecitabine: absorption, AE
- Prodrug of 5-FU
- Absorbed in the intestines
- AEs: hand-foot syndrome
(CC) Oxaliplatin
- Platinum compound (alkylating agent)
- DNA cross-links → inhibit DNA replication and transcription → cell death
- AEs: cold sensitivity, neuropathy
(CC) Irinotecan
- Active metabolite (SN-38) bind reversibly to topoisomerase I-DNA complex, preventing religation of the cleaved DNA strand and cell lysis
- AE: diarrhea
- Early: atropine/ Late: loperamide
- UGT1A1 deficiency (*28) leads to worse SEs
(CC) Anti-angiogenesis agents
- Bevacizumab, ziv-aflibercept, ramucirumab
- Targets vascular endothelial GF (VEGF)
- AEs: hemorrhage, wound healing complications, HTN, arterial thromboembolism
(CC) Immune checkpoint inhibitors
- PD-1 inhibitor: nivolumab, pembrolizumab
- CTLA-4 inhibitor: ipilimumab
- Enhances T-cell activation and proliferation
- AEs: immune-mediated organ toxicities
(CC) EGFR pathway inhibitors
Cetuximab, panitumumab
- Competitively inhibits epidermal GF (EGF) by binding to EGF receptor (EGFR)
- AEs: skin rashes/toxicities
Encorafenib: BRAF V600E mutation
- ATP inhibitor that suppresses tumor growth through the MAPK/ERK pathway
- AEs: skin reactions
(CC) Antibody-Drug conjugates
- Fam-trastuzumab deruxtecan: HER2 amplified
- Humanized IgG1 monoclonal Ab, a cleavable linker, and a topoisomerase inhibitor → upon internalization, linker is cleaved to release the topoisomerase inhibitor → targeted DNA damage & cell death
Etiology/Risk factors of prostate cancer (High Risk)
- Family History
- Race: African American > Caucasian > Asian
- Genetic: tumor suppressor genes (BRCA1/2), proto-oncogenes (TP53, BRCA, BCR-ABL, HER2)
- Age: median diagnosed age 67
- Diet: high-meat and high-fat diets
- African American, men with first degree relative diagnosed with prostate cancer at age <65 yo
(PC) Screening recommendations
- Digital Rectal Exam (DRE)
- Prostate Specific Antigen (PSA): >3 ng/mL requires further evaluation
- Shared decision making process: MD & patient
(PC) Grading: Gleason Score Calculation, Low vs intermediate vs high
- Most common grade + second most common grade
- Low: 6
- Intermediate: 7
- High: 8
(PC) Treatment is determined by ___ (2)
Risk stratification & Life expectancy
(PC) Very low risk treatment: Long vs Short life expectancy
- > =20 yrs: active surveillance, radiation, radical prostatectomy +/- pelvic lymph node dissection
- 10-20 yrs: active surveillance
- <10 yrs: observation
(PC) Low risk treatment: Long vs Short life expectancy
- > =10 yrs: active surveillance, radiation, radical prostatectomy +/- pelvic lymph node dissection
- <10 yrs: observation
(PC) Intermediate risk treatment: Long vs Short life expectancy
- > =10 yrs: radical prostatectomy +/- pelvic lymph node dissection, radiation +/- androgen deprivation therapy (ADT; 4-6 months) or brachytherapy alone
- <10 yrs: observation, radiation +/- androgen deprivation therapy (ADT; 4-6 months) or brachytherapy alone
(PC) High & Very High risk treatment: Long vs Short life expectancy
- > 5 yrs or symptomatic: radiation + ADT (2-3 yrs), radiation + brachytherapy +/- ADT (2-3 yrs), radical prostatectomy + pelvic lymph node dissection
- =<5 yrs and asymptomatic: observation, ADT, radiation
(PC) Observation: Goal, Preferred patients, Monitoring, (+) / (-)
- Avoid non-curative treatment
- Very low to intermediate risk disease and <10 yr LE
- PSA, DRE, symptoms no more than every 6 months
- Avoid possible AEs & maintain QoL
- Risk of progression of disease, increased pt anxiety
(PC) Active surveillance: Goal, Preferred patients, Monitoring, (+) / (-)
- Expectation to deliver curative therapy if the cancer progresses
- Very low/low risk disease and LE >=20 yrs
- PSA at least every 6 months, DRE & biopsy at least every 12 months
- Avoid possible AEs & maintain QoL
- Missed opportunity for cure, tx delay, increased pt anxiety
(PC) What is Androgen Deprivation Therapy (ADT)?
- Goal: inhibit testosterone production
- Orchiectomy: surgical removal of testes
- Hypothalamic-pituitary-gonadal axis: LHRH agonist: (-) feedback, LHRH antagonist –> Goal: testosterone <50 ng/dL
(PC) LHRH agonists MoA, agents, AEs
- Stimulate pituitary gland to produce LH & FSH → initial surge in testosterone
- Goserelin, leuprolide, triptorelin, histrelin
- AEs: tumor flare, osteoporosis, CV events
(PC) What is tumor flare? Prevention?
- Worsen symptoms: ureteral obstruction or urinary retention, spinal cord compression, increased bone pain
- Castrate level: <50 ng/dL
- Use in combination with antiandrogens (ex., bicalutamide, flutamide, nilutamide)
(PC) LHRH antagonists MoA, agent, AEs
- Reversibly binds to GnRHR on the pituitary gland and inhibits production of testosterone
- Degarelix
- No tumor flare
(PC) What is castration resistance?
- Serum testosterone <50 ng/dL
- Occurs w/i 2-4 yrs on ADT therapy on ALL patients
(PC) Antiandrogens for non-metastatic: second generation agents & toxicities
- Apalutamide: seizures, QTc prolongation, avoid in thyroid dysfunction
- Enzalutamide: seizures, CV effects
- Darolutamide: must be taken w/ food, least DDI (does not penetrate BBB → no seizure)
(PC) Metastatic CRPC 1st line treatment: Asymptomatic Bone-only vs Visceral
- B-O: abiraterone, docetaxel, enzalutamide, sipuleucel-T
- V: abiraterone, docetaxel, enzalutamide
(PC) Metastatic CRPC 1st line treatment: Symptomatic Bone-only vs Visceral
- B-O: docetaxel, radium-223
- V: docetaxel
(PC) Abiraterone: MoA, Dose in combination with ___, Administration with or w/o food, Warnings
- Selectively & irreversibly inhibits CYP17 → halts the formation of testosterone precursors
- In combination w/ prednisone BID
- Without food
- Mineralocorticoid excess (HTN, hypokalemia, fluid retention)
(PC) Docetaxel: MoA, Warnings, SEs
- Taxane; promote assembly of microtubules, inhibit depolymerization of tubulin & stabilizes microtubules in the cell → inhibit DNA, RNA, protein synthesis
- Neutropenia, fluid retention, hypersensitivity
- Neuropathy
(PC) Cabazitaxel: MoA, Warnings, SE, Use
- Taxane; same as docetaxel
- Hypersensitivity reaction
- Neuropathy
- Post docetaxel
(PC) Sipuleucel-T: MoA, SEs, Use
- Immunotherapy; stimulate immune response against prostatic acid phosphatase (PAP)
- Acute infusion reactions
- Asymptomatic bone-only disease
(PC) Radium-223: MoA, SEs, Use
- Mimics calcium to form complexes with bone mineral → alpha emitting isotope induces double strand DNA breaks
- Peripheral edema, nausea
- Symptomatic bone metastases w/ no know visceral metastases
(PC) Poly ADP-Ribose Polymerase (PARP) Inhibitors: agents, SEs, dose in combination with ___, use
- Olaparib, rucaparib
- Nausea (moderate emetogenic potential)
- Should be given in combination w/ ADT
- Indicated in the metastatic castration resistant only
(PC) Lutetium-177-PSMA-617: Indication, Administration, AEs
- Metastatic CRPC, PSMA+
- Renal/hepatic toxicity
- Administer pre-medications for N prior to infusion
(PC) Pembrolizumab: MoA, Indication
- PD-1 inhibitor; prevents activation of T cell
- Metastatic CRPC
Risk factors of cervical cancer
- Early age of sexual debut
- Having multiple sexual partners or a high-risk sexual partner
- Immunosuppression: organ transplant, immunodeficiency disorders (HIV)
- History of sexually-transmitted infection
- History of HPV-related vulvar or vaginal dysplasia
- Non-adherence to screening programs
- Tobacco smoking
(Cerv) Primary prevention: Vaccination schedule
- HPV vaccine recommended for all adolescents at age 11-12
- 2-dose series: 2nd dose 6-12 months after the first dose
- 3-dose series (Age 15-26): 2nd dose 1-2 months after the first dose, 3rd dose 6 months after the first dose
(Cerv) Screening recommendations
- Women 21-29: every 3 yrs with cervical cytology alone
- 30-65: every 3 yrs with cervical cytology alone, every 5 yrs with high-risk HPV testing alone, every 5 yrs with hrHPV testing in combination with cytology
- 3 consecutive negative cytology results or 2 consecutive negative co-testing results within 10 yrs is recommended before stopping screening
- Most recent test occurring within 5 yrs
(Cerv) Management of early stage/localized: IA1, IA2, IB1, IB2
Surgery +/- radiation
(Cerv) Management of locally advanced: IB3, II, III, IVA
- Chemoradiation = chemo + radiation
- Common regimen: Pelvic External Beam Radiation (EBRT) + concurrent platinum-containing chemo → brachytherapy
- Typically weekly cisplatin (carboplatin)
(Cerv) Cisplatin: toxicities, supportive care, monitoring
- Toxicities: severe N/V, peripheral sensory neuropathy, ototoxicity, electrolyte disturbances
- Supportive care: antiemetics, hydration pre/post
- Monitoring: electrolytes (K, Mg, Ca, Na)
(Cerv) Management of metastatic: IVB local vs systemic (PD-L1(+) vs (-))
- Local treatment: surgery +/- radiation
- Systemic treatment: chemotherapy (main)
- PD-L1(+): pembrolizumab + cisplatin or carboplatin + paclitaxel +/- bevacizumab
- PD-L1(-): cisplatin or carboplatin + paclitaxel + bevacizumab
- Incurable; palliative
(Cerv) Management of recurrent
- Local/regional: chemoradiation +/- surgery if applicable, chemotherapy
Distant: - If new metastatic, approach as first-time
- Second line for stage IVB: Pembrolizumab for PD-L1(+) or MSI-H/dMMR+ tumors / Tisotumab vedotin, cemiplimab
Risk factors of Lung Cancer
- Environmental respiratory carcinogens: asbestos, arsenic, benzene
- Genetics: first-degree relative w/ lung cancer
- COPD
- Asthma
- Smoking tobacco
(LC) Screening target populations
Must meet all the following criteria
1. Adults 50-80 yrs
2. 20 pack-year smoking history
3. Currently smoke or have quit w/i the past 15 yrs
(LC) Screening recommendation
- Annual screening w/ low-dose computed tomography (CT)
- Should continue until the person has not smoked for 15 yrs or develops a health condition that limits life expectancy or the ability/willingness to have curative lung surgery
(LC) Treatment of stages I-III Non Small Cell Lung Cancer (NSCLC): Resectable
- Surgery → adjuvant chemo +/- radiation → atezolizumab, pembrolizumab or osimertinib
- Atezolizumab for 1 yr if PD-L1 >1% (If both EGFR+ and PD-L1+ give osimertinib)
- Pembrolizumab for 1 yr regardless of PD-L1
- Osimertinib for 3 yrs if EGFR+
(LC) Treatment of stages I-III Non Small Cell Lung Cancer (NSCLC): Unresectable
- Mostly stage III
- Chemoradiation → durvalumab (PD-L1 inhibitor) maintenance for 12 months
(LC) Preferred Chemotherapy in stages I-III NSCLC: Platinum Doublet nonsquamous vs squamous
- Nonsquamous: cisplatin + pemetrexed
- Squamous: cisplatin + gemcitabine or docetaxel
(LC) Pemetrexed: MoA, Uses, Toxicities, D/I, Supportive care
- Antifolate; inhibit dihydrofolate reductase (DHFR)
- Non-squamous NSCLC
- Cutaneous reactions
- NSAIDs, nephrotoxic drugs
- Dexamethasone for 3 days beginning the day before tx (derm tox risk ), folic acid for 7 days pre through 21 days post, vitamin B12 for 7 days pre then every 3 cycles
(LC) EGFR mutation(+) stage IV NSCLC treatment
Most common mutations found in lung cancer
Osimertinib
(LC) ALK rearrangement(+) stage IV NSCLC treatment
Alectinib, Lorlatinib, Brigatinib
(LC) ROS1 rearrangement(+) stage IV NSCLC treatment
Entrectinib, Crizotinib
(LC) BRAF V600E mutation(+) stage IV NSCLC treatment
- Dabrafenib + trametinib
- Encorafenib + binimetinib
(LC) NTRK gene fusion (+) stage IV NSCLC treatment
Larotrectinib, Entrectinib
(LC) MET Exon 14 skipping mutation (+) stage IV NSCLC treatment
Capmatinib, Tepotinib
(LC) RET rearrangement (+) stage IV NSCLC treatment
Selpercatinib, Pralsetinib
(LC) PD-L1 checkpoint inhibitors stage IV NSCLC treatment: Indication, agents
- Tumor is too advanced to be surgically resectable
- CTLA-4 mAb: Ipilimumab
- anti-PD-1 mAb: Nivolumab, Pembrolizumab, cemiplimab-rwlc
- Human anti-PD-L1 mAb: Atezolizumab, durvalumab
(LC) Immune-mediated AEs (irAEs) with checkpoint inhibitors
- Enterocolitis, hepatitis, dermatitis, neuropathy, endocrinopathy
- Permanently d/c and initiate systemic high-dose corticosteroid therapy for severe immune-mediated reactions
- Evaluate clinical chemistries of liver function, ACTH level, thyroid function tests at baseline and before each dose
(LC) Preferred first-line treatments for immune sensitive stage IV NSCLC (Nonsquamous): PD-L1 50% vs 1-49%
PD-L1 50%
- Pembrolizumab + carboplatin/cisplatin + pemetrexed
- Pembrolizumab
- Atezolizumab
- Cemiplimab
PD-L1 1-49%
- Pembrolizumab + carboplatin/cisplatin + pemetrexed
(LC) Preferred first-line treatments for immune sensitive stage IV NSCLC (Squamous): PD-L1 50% vs 1-49%
PD-L1 50%
- Pembrolizumab + carboplatin + paclitaxel/albumin-bound paclitaxel
- Pembrolizumab
- Atezolizumab
- Cemiplimab
PD-L1 1-49%
- Pembrolizumab + carboplatin + paclitaxel/albumin-bound paclitaxel
(LC) Preferred first-line treatments for PD-L1 <1% stage IV NSCLC (Nonsquamous): Performance score 0-1 vs 2
- PS 0-1: Pembrolizumab + carboplatin/cisplatin + pemetrexed
- PS 2: Carboplatin + pemetrexed
(LC) Preferred first-line treatments for PD-L1 <1% stage IV NSCLC (Squamous): Performance score 0-1 vs 2
- PS 0-1: Pembrolizumab + carboplatin + paclitaxel/albumin-bound paclitaxel
- PS 2: Carboplatin + albumin-bound paclitaxel/gemcitabine/paclitaxel
(LC) Maintenance therapy for stage IV NSCLC
- Initial tx of immunochemo given for 4-6 cycles
- Pembrolizumab +/- pemetrexed
- Atezolizumab +/- bevacizumab
- Should continue for 2 yrs if no progression
(LC) Staging of small cell lung cancer (SCLC): Limited vs Extensive
- Limited: tumor in a single hemithorax and fits in a single radiation port
- Extensive: anything beyond limited
(LC) Treatment of limited stage SCLC: Goal, Regimens
- Goal: cure
- Cisplatin + Etoposide
(LC) Treatment of extensive stage SCLC: Goal, Regimens
- Goal: palliation
- Chemo + immuno → maintenance immuno
- Carboplatin + etoposide + atezolizumab x4 cycles → atezolizumab maintenance
- Carboplatin + etoposide + durvalumab x4 cycles → durvalumab maintenance
- Cisplatin + etoposide + durvalumab x4 cycles → durvalumab maintenance
(St) Cells that bind to MHC II
CD4 T
(St) Cells that express MHC II
APCs: activated B cells, dendritic cells, macrophages
(St) Cells that bind to MHC I
CD8 T cells and NK cells
(St) Cells that express MHC I
All nucleated cells including APCs and tumor cells
(St) CD4 “helper” T cell activation and polarization requires 3 DC-derived signals
- Antigen specific: TCR (T cell) binds to MHC II-associated TAA on APC
- Co-stimulatory: CD28 binds to B7 (CD80) on APC
- Polarizing: IFN-gamma & IL-12 promote Th1; IL-10 promotes Th2 development
(St) CD8 “cytotoxic” T cell activation assisted by Th-1 cells via 3 signals
- TCR binds to MHC I/antigen
- CD28 binds to B7
- Secretion of IL-2 by CD4 T cell –> CD8 T cell survival & memory T cells
(St) Activated CD8 T cells differentiate into cytotoxic T lymphocytes (CTLs) & destroy target cells expressing antigen bound to ___
MHC I
(St) B cell recognizes antigen through membrane-bound ___ and ___
IgM and IgD
(St) B cell activation most often requires Th2 cell: 3 signals
- Crosslinking of surface Ig by antigen
- CD40 binds to CD40L and Th2 secretes IL-4
- secretion of IFN-gamma, IL-4, IL-10, IL-21
(St) Activated B cells differentiate into plasma cells, secrete circulating ___ and ___; three roles
- IgM and IgG
1. Complement
2. Opsonization and phagocytosis
3. Antibody-dependent cellular cytotoxicity (ADCC)
(St) CAR-T cells do/do not require antigen processing and presentation by APCs
Do NOT
(St) CAR-T cell toxicities (BBW) and treatment
- Cytokine Release Syndrome (CRS): Corticosteroids & tocilizumab
- Encephalopathy (ICANS or CRES): Corticosteroids
- REMS
(St) S/S of CRS
Capillary leak, HoTN, multiorgan dysfunction/failure
(St) Risk factors of CRS
ALL, high tumor burden, higher CAR-T cell dose
(St) Toclizumab: Indication, MoA, AEs, Algorithm by CRS grading (G1-3)
- Treatment of CRS
- mAb targeting IL-6R
- Serious infections leading to hospitalization
- Grade 1: X
- Grade 2: only when >50 or comorbidities
- Grade 3, 4: YES
(St) CTLA-4 is expressed by ___, which competes with ___ for binding to ___
Activated CD8 T cells (CTLs); CD28; B7 on DC
(St) PD-1 is expressed by ___
T(regs), CTLs, activated B cells, activated NK cells
(St) PD-L1 is expressed by ___
Tumor cells
(St) Managing immune-related AEs (irAEs) with checkpoint inhibitors: Thyroid
- Hypothyroidism > Hyper
- Levothyroxine
(St) Clinical S/S of Type I IgE-mediated Hypersensitivity
Urticaria, Angioedema
(St) Risk factors for Type I hypersensitivity
- IV administration
- Multiple previous cycles of the drug
- Prior infusion rxn to another drug in the same class
- Hx of multiple drug allergies or atopy
(St) Type I IgE-mediated Hypersensitivity vs SIRs
- Type I: IRRs w/ any feature of mast cell/basophil degranulation (angioedema, urticaria) –> Grade 3-5 (Severe)
- SIRs: no urticaria or angioedema –> Grade 1-5
(St) NCI CTCAE Grade 1, 2, 3 algorithm
- G1: Infusion not stopped, tx not needed
- G2: Therapy or infusion temporarily stopped but responds promptly to symptomatic tx, prophylactic med for supportive care (benadryl, corticosteroid)
- G3: Prolonged even after tx, recurrence of symptoms, hospitalization required
(St) IgE-mediated (Type I) infusion rxn: Platinum agents
- Premedication not routinely administered
- Most common after: 1) Initial course completed, followed by relapse & re-treatment, 2) At least six cycles of continuous treatment
- Skin testing(+) → refer to specialist for desensitization
- Carboplatin, cisplatin, oxaliplatin
(St) Carboplatin infusion rxn incidence is higher in children with ___
Brain tumors
(St) IgE-mediated (Type I) infusion rxn: Asparaginase
- Skin testing not useful
- Premed not recommended
- More common IV > IM
- Severe rxn to peg-asparaginase → switch to Erwinaze
(St) IgE-mediated (Type I) infusion rxn: Etoposide
- Low incidence
- Emulsifying agent in IV preparation (polysorbate 80) thought to be the cause
- Neither skin testing or premed recommended
(St) Non-IgE-mediated infusion rxn: Taxanes - mostly occurs ___, premed, skin testing
- 90% occur during first or second drug infusion
- Premed:
1. Paclitaxel: dexamethasone 12 & 6 H prior + diphenhydramine & famotidine 30 mins prior
2. Docetaxel: dexamethasone for 3 consecutive days, starting 24 hrs prior - Skin testing recommended prior to each subsequent dose –> (+): refer (-): premed & rechallenge at slower rate
(St) Emulsifying agents in: paclitaxel vs docetaxel & etoposide
Cremophor EL vs polysorbate-80
(St) Monoclonal antibodies (mAb): Type I-like more commons with ___ (3)
Rituximab, trastuzumab, cetuximab
(St) Monoclonal antibodies (mAb): CRS more common with ___
Rituximab
(St) Monoclonal antibodies (mAb): premedication
- APAP + diphenhydramine 30 mins before first and second infusions
- Famotidine 30 mins prior