bagietto mci stronger new powerpoint revised template 02 ...€¦ · 6dihw\ wlsv rq kdqgolqj dqg...
TRANSCRIPT
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Alba BagliettoRN, BSN
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I have no affiliations
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MANAGING TOXICITIES FOR BRAF & MEK INHIBITORS
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Current FDA Approved Indications & Dosage
Combination
Encorafenib oral 300 mg QD
Binimetinib oral 45 mg BID
Combination
Trametinib oral 2 mg QD
Dabrafenib oral 150 mg BID
Colorectal Cancer
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Combination
Trametinib oral 2 mg QD
Dabrafenib oral 150 mg BID
NSCLC
Current FDA Approved Indications & Dosage
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Combination
Vemurafenib oral 960 mg BID
Cobimetinib oral 60 mg QD
On day 1 to day 21 of each 28 day cycle
Combination
Trametinib oral 2 mg QD
Dabrafenib oral 150 mg BID
Combination
Encorafenib oral 450 mg QD
Binimetinib oral 45 mg BID
Metastatic Melanoma
Current FDA Approved Indications & Dosage
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Safety tips on handling and storage
Dabrafenib Room temperature/ 1hr before or 2 hrs. after meals
TrametinibRefrigerate/ 1hr before or 2 hrs. after meals
EncorafenibRoom temperature/ with or without food
BinimetinibRoom temperature/ with or without food
VemurafenibRoom temperature/ with or without food
CobimetinibRoom temperature/ with or without food
Do not crush, open or break
Use gloves
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Prior to Drug Initiation
Confirm BRAF mutation
Assess Ejection FractionEchocardiogram or MUGA scan
Dermatological evaluation
A1C in patients with diabetes Ophthalmologist evaluation
Avoid sun exposure Pregnancy test
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Lab Values to Monitor
LFTs Electrolytes starting 2 weeks after
CPK GGT levels (Gamma-Glutamyl Transferase
Alkaline Phosphatase Monitor glucose levels for patients with DM
Bilirubin Renal function
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Case presentation
This is a 44-year-old Hispanic female with stage IV NSCLC BRAF positive. Patient was initiated on combination therapy with dabrafenib 150mg BID and trametinib 2mg QD. After 2 weeks on treatment patient presented back in clinic with a fever of 102F, and bilateral lower extremity edema. She reported taking Tylenol 1000 mg every 8 hours and as needed.
What would you do ?
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Most common Adverse reactions
Trametinib/Dabrafenib
Pyrexia 63%
Fatigue 59%
Nausea 40%
Headache 39%
Rash 37%
Chills 37%
Diarrhea 33%
Vomiting 28%
Myalgias 20%
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Most common Adverse reactions
Diarrhea 60%
Nausea 41%
Vomiting 24%
Photosensitivity reaction 46%
Pyrexia 28%
Vemurafenib/Cobimetinib
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Most common Adverse reactions
Encorafenib/Binimetinib
Fatigue 43%
Nausea 41%
Vomiting 30%
Abdominal Pain 28%
Arthralgias 26%
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Pyrexia-Trametinib
Fever higher than 104F
Fever accompanied by Rigors/ChillsHypotensionDehydrationRenal failureInfection
Withhold until it resolves then resume at a Lower dose
Administer Antipyretics (Acetaminophen)
Administer Corticosteroids for at least 5 days for subsequent pyrexia or if it doesn’t return to baseline within 3 days
Administer antipyretics as prophylaxis when resuming
Management
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Pyrexia-Dabrafenib
Fever higher than 101.3F to 104F
Fever accompanied byRigors/ChillsHypotensionDehydrationRenal failure Infection
Fever higher than 104F
Withhold until it resolves then resume at same or lower dose
Administer Antipyretics (Acetaminophen)
Administer Corticosteroids for at least 5 days for subsequent pyrexia or if it doesn’t return to baseline within 3 days
Administer antipyretics as prophylaxis when resuming
Withhold until it resolves then resume at same or lower dose or Permanently discontinue
Management
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New Cutaneous & Non-Cutaneous Primary Malignancies
Management
Cutaneous malignancies No dose adjustmentExcise and continue treatment
Non-cutaneous RAS mutation positive Malignancies
Permanently discontinue
Dabrafenib Cobimetinib Vemurafenib
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Cardiomyopathy
Asymptomatic/Symptomatic
LVEF decrease of < 10 % from baseline
Withhold for up to 4 weeks
Resume at next lower dose when symptoms resolve
If symptoms persist LVEF decreases > 10%
Permanently discontinue if it does not recover within 4 weeks
Dabrafenib Trametinib Binimetinib Cobimetinib
Management
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Skin toxicityManagement
In severe skin toxicity Withhold for up to 3 weeks
Resume at a lower dose with improvement
Permanently discontinue if no improvement after 3 weeks
Trametinib Dabrafenib Vemurafenib
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Ocular toxicities
Management
Vision Disturbances
Retinal Pigment Epithelial Detachment (RPED)
Ophthalmology evaluation within 24 hours
Withhold/Treat/Resume at lower dose/ DC if no improvement
Retinal Vein Occlusion (RVO) Discontinue permanently
Trametinib
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Ocular toxicitiesManagement
Cobimetinib
Serous Retinopathy Withhold for up to 4 weeksIf improve resume at the next lower doseDiscontinue if no improvement within 4 weeks
RVO Permanently discontinue
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Ocular toxicities
Vision Disturbances
Iritis
Ophthalmology evaluation within 24 hours
Treat & continue treatment
Uveitis (mild-Moderate)(Most common)
Withhold/Treat/Resume at lower doseDiscontinue if no improvement
Management
Dabrafenib Vemurafenib Encorafenib Binimetinib
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Liver toxicity
Abnormal labs Withhold up to 4 weeksif improvement resume at same dose
If no improvement permanently discontinue
Management
Binimetinib Vemurafenib Cobimetinib
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Interstitial Lung Disease (Pneumonitis)
Management
Permanently discontinue
Trametinib Binimetinib
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Radiation Sensitization
Vemurafenib
Monitor patients closely
Fatal cases have been reported in patient treated with radiation prior, during or subsequent
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DVT/PE
If uncomplicated DVT/PE Withhold for up to 3 weeks
If improved Resume at a lower dose
Life-threatening PE Permanently discontinue
Management
Binimetinib Trametinib
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Glucose-6-Phosphatase Dehydrogenase Deficiency
Hemolytic anemia Monitor closely
Dabrafenib
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Recommended dose reductions
First reduction 300 mg QD First reduction 30 mg BID
Second reduction 225 mg QD If unable to tolerate 30 mg, permanently discontinue
If unable to tolerate 225 mg, permanently discontinue
Encorafenib Binimetinib
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Recommended Dose Reductions
First dose reduction 100 mg BID First dose reduction 1.5 mg QD
Second dose reduction 75 mg BID Second dose reduction 1 mg QD
Third dose reduction 50 mg BID
Dabrafenib Trametinib
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Recommended dose reductions
First dose reduction 720 mg BID First dose reduction 40 mg QD
Second dose reduction 480 mg BID Second dose reduction 20 mg QD
If unable to tolerate at 20 mg QDpermanently discontinue
Vemurafenib Cobimetinib
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Case presentation
This is a 44-year-old Hispanic female with stage IV NSCLC BRAF positive. She was started in combination therapy with dabrafenib 150 mg BID in and trametinib 2 mg QD. After 2 weeks patient presented back to clinic with fever of 102F, and bilateral lower extremity edema.Patient reported taking Tylenol 1000 mg every 8 hours as needed.
What would you do ?
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Answer to case presentation
• Evaluate for infection/Cultures• Evaluate for DVT• Withhold Dabrafenib and continue Trametinib until fever
resolves • Administer antipyretics• Resume Dabrafenib at same or lower dose• We could administer Corticosteroids (10 mg a day for at least
5 days) for any subsequent pyrexia or if temperature does not return to baseline within 3 days of onset
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Summary
• There are 3 FDA approved combination treatments for patients with BRAF mutation Colorectal cancer, Metastatic Melanoma, and NSCLC
• Confirm BRAF mutation • Assess EF• Run baseline labs (electrolytes, renal function, LFTs, CPK, GGT, Bili,
ALP, A1C)• Monitor INR for patients on Warfarin taking Dabrafenib and Trametinib• Send patient to have a dermatological and ophthalmological evaluation• Pregnancy test for females
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Summary
In patients with NSCLC the most important information to know
• The most common adverse reaction is Pyrexia• Manage by withholding until patient recovers, treating with antipyretics and
resuming at same or lower dose (may use steroids 10 mg a day for at least 5 days)
• Monitor serum creatinine in patients following severe pyrexia• Make sure to always check package insert for specifications on dose
reductions and when to withhold• Always remember It may not be necessary to withhold both drugs
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Thank you