Malignant Melanomas Flashcards
What are the RFs for malignant melanoma?
PH and FH of cutaneous melanomas
High density of common and atypical nevi
Immunodeficiency/immunosuppression
Sun sensitivity or exposure
What are the clinical presentations of malignant melanoma?
Questionable lesions
Possible signs of metastasis
What are the ABCDEs of nevi?
Asymmetry Border irregularity Color Diameter Enlargment/evolution
How are malignant melanomas diagnosed?
Review of patient history to identify RFs
Biopsy
Total dermatologic examination
Lymph node evaluation
May do additional imaging studies if metastasis suspected
How are malignant melanomas staged?
TNM
What factors affect the T in TNM system?
Tumor thickness
Mitotic rate: higher rate indicates cancer more likely to grow and spread
Ulceration: breakdown of skin over the melanoma. Worse prognosis with more ulceration
What is stage 0 melanoma?
Melanoma in situ
What is stage I melanoma?
Tumor < 1-2 mm in thickness
What is stage II melanoma?
Tumor > 2 mm in thickness
What is stage III melanoma?
Clinically positive nodes and/or separate distinct lesions
What is stage III in-transit ?
Spread through lymph and begins to grow > 2cm away from the primary but before reaching the nearest lymph node
What is stage IV melanoma?
Distant metastatic disease
What are the prognostic factors for melanoma?
Tumor thickness
Mitotic rate
Tumor ulceration
What are the treatment goals of localized melanoma?
Cure
What are the treatment goals of regional disease?
Possible a cure if able to do surgery +/- adjuvant chemo
What are the treatment goals of metastatic disease?
Slow progression
Prolong life
Improve QOL
Relieve acute sx
What is the primary treatment for stages 0-I?
Wide excision +/- sentinel lymph node biopsy (SNLB) with thicker disease
Is adjuvant therapy needed in stages 0-I?
No
What is the primary treatment for stage II?
Wide excision +/- SLNB
What is the adjuvant treatment for stage II melanoma?
Interferon alfa in select cases but not routinely used
What is the primary treatment for stage III melanomas?
Wise excision + lymph node dissection
What are the adjuvant treatment options for stage III melanoma?
None/observation Radiation Nivolumab/HD ipilimumab Dabrafenib/trametinib (if BRAF V600 mutations) Interferon alfa
What is the primary treatment of stage IV melanomas?
Surgery if resectable
Systemic chemotherapy
+/- palliative radiation therapy
What systemic therapies are first line options if the patient has wt BRAF V600?
Nivolumab
Pembrolizumab
Nivolumab + ipilimumab
What are the systemic therapies that are first line if the patient has a BRAF V600 mutation?
Nivolumumab Pembrolizumab Nivolumab + ipilumab Dabrafenib + trametinib Vamurafenib + cobimetinib
What are the PD-1 inhibitors?
Nivolumab
Pembrolizumab
How do PD-1 inhibitors work?
Block interaction between PD-1 and PD-L1 which normally deactivates T cells
What are AEs of PD-1 inhibitors?
Rash Pneumonitis Colitis Hepatitis Nephritis Renal dysfunction Hypothyroidism Hyperthyroidism
What is the CTLA-4 monoclonal antibody?
Ipilimumab
What was the first anti-cancer drug for advanced melanoma to demonstrate overall survival?
Ipilimumab
What are the GI AEs of ipilimumab?
Diarrhea
Colitis
Blood in stool
What is the treatment for the GI AEs of ipilumumab?
If moderate-severe = corticosteroids
What are the AEs for skin AEs d/t ipilumumab?
SJS
Maculopapular rash
How do we treat skin AEs d/t ipilumumab?
Topical or oral steroids
What are the liver AEs d/t ipilumumab?
LFT elevation
How do we treat AEs of liver d/t ipilumumab?
If severe = steroids
Which anti-cancer drugs are MEK inhibitors?
Tramatinib
Cobimetinib
What are the AEs for Debrafenib/trametinib and Vemurafenib/cobimetinib combinations?
Pyrexia
Cutaneous malignancies
Bleeding
Thromboembolic events
What is pyrexia associated with?
Chills
Night sweats
Dehydration
Electrolyte abnormalities
What is talimogene laherparepbvec indicated for?
unresectable recurrent melanoma in the skin or lymph glands
How is talimogene administered?
Intralesional Injection
How does talimogene work?
Virus relicates within cancer cell and secretes GM-CSF, which attracts dendritic cells and T cells
What are the AEs of talimogene?
Injection site reactions
Fatigue
Chills
Flu-like sx