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Koselugo
selumetinib
Adult Dosing .
Adult dosing is currently unavailable or not applicable for this drug.
Peds Dosing .
- Dosage forms: CAP: 10 mg, 25 mg: GRANULE: 5 mg, 7.5 mg
Special Note
- [strength clarification]
- Info: 10 mg cap contains 32 mg vitamin E; 25 mg cap contains 36 mg vitamin E
- [uses, dosing may vary]
- Info: refer to institution protocols and pkg insert prior to prescribing for uses and dosing incl. toxicity-related dose adjustments
neurofibromatosis, type 1
- [cap form, 1 yo and older, BSA 0.55-0.69 m^2]
- Dose: 20 mg PO qam, 10 mg PO qpm (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; do not open cap
- [cap form, 1 yo and older, BSA 0.70-0.89 m^2]
- Dose: 20 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; do not open cap
- [cap form, 1 yo and older, BSA 0.90-1.09 m^2]
- Dose: 25 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; do not open cap
- [cap form, 1 yo and older, BSA 1.10-1.29 m^2]
- Dose: 30 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; do not open cap
- [cap form, 1 yo and older, BSA 1.30-1.49 m^2]
- Dose: 35 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; do not open cap
- [cap form, 1 yo and older, BSA 1.50-1.69 m^2]
- Dose: 40 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; do not open cap
- [cap form, 1 yo and older, BSA 1.70-1.89 m^2]
- Dose: 45 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; do not open cap
- [cap form, 1 yo and older, BSA >1.9 m^2]
- Dose: 50 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; do not open cap
- [granule form, 1 yo and older, BSA 0.4-0.59 m^2]
- Dose: 12.5 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; must open cap, but do not crush/chew granules
- [granule form, 1 yo and older, BSA 0.6-0.69 m^2]
- Dose: 15 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; must open cap, but do not crush/chew granules
- [granule form, 1 yo and older, BSA 0.7-0.89 m^2]
- Dose: 20 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; must open cap, but do not crush/chew granules
- [granule form, 1 yo and older, BSA 0.9-1.09 m^2]
- Dose: 25 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; must open cap, but do not crush/chew granules
- [granule form, 1 yo and older, BSA 1.1-1.29 m^2]
- Dose: 30 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; must open cap, but do not crush/chew granules
- [granule form, 1 yo and older, BSA 1.3-1.49 m^2]
- Dose: 35 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; must open cap, but do not crush/chew granules
- [granule form, 1 yo and older, BSA 1.5-1.69 m^2]
- Dose: 40 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; must open cap, but do not crush/chew granules
- [granule form, 1 yo and older, BSA 1.7-1.89 m^2]
- Dose: 45 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; must open cap, but do not crush/chew granules
- [granule form, 1 yo and older, BSA >1.9 m^2]
- Dose: 50 mg PO bid (25 mg/m^2/dose PO bid); Info: for patients w/ symptomatic, inoperable plexiform neurofibromas; must open cap, but do not crush/chew granules
renal dosing
- [no adjustment]
- renal impairment: no adjustment
- HD/PD: no adjustment; no supplement
hepatic dosing
- [cap form, BSA 0.55-0.69 m^2]
- Child-Pugh Class B: 10 mg bid (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [cap form, BSA 0.70-0.89 m^2]
- Child-Pugh Class B: 20 mg qam, 10 mg qpm (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [cap form, BSA 0.90-1.09 m^2]
- Child-Pugh Class B: 20 mg bid (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [cap form, BSA 1.10-1.29 m^2]
- Child-Pugh Class B: 25 mg bid (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [cap form, BSA 1.30-1.49 m^2]
- Child-Pugh Class B: 30 mg qam, 25 mg qpm (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [cap form, BSA 1.50-1.69 m^2]
- Child-Pugh Class B: 35 mg qam, 30 mg qpm (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [cap form, BSA 1.70-1.89 m^2]
- Child-Pugh Class B: 35 mg bid (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [cap form, BSA >1.9 m^2]
- Child-Pugh Class B: 40 mg bid (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [granule form, BSA 0.4-0.59 m^2]
- Child-Pugh Class B: 10 mg bid (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [granule form, BSA 0.6-0.69 m^2]
- Child-Pugh Class B: 12.5 mg bid (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [granule form, BSA 0.7-0.89 m^2]
- Child-Pugh Class B: 15 mg bid (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [granule form, BSA 0.9-1.09 m^2]
- Child-Pugh Class B: 20 mg bid (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [granule form, BSA 1.1-1.29 m^2]
- Child-Pugh Class B: 25 mg bid (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [granule form, BSA 1.3-1.49 m^2]
- Child-Pugh Class B: 30 mg PO qam, 25 mg PO qpm (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [granule form, BSA 1.5-1.69 m^2]
- Child-Pugh Class B: 35 mg PO qam, 30 mg PO qpm (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [granule form, BSA 1.7-1.89 m^2]
- Child-Pugh Class B: 35 mg bid (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
- [granule form, BSA >1.9 m^2]
- Child-Pugh Class B: 40 mg bid (20 mg/m^2/dose bid); Child-Pugh Class C: not defined
Contraindications / Cautions .
- hypersensitivity to drug or ingredient
- vitamin E use, concurrent (cap form)
- avoid: breastfeeding during tx and x1wk after D/C
- caution: patients of childbearing potential
- caution: male patients of reproductive potential
- caution: hepatic impairment, Child-Pugh Class B-C
- caution: cardiac disease history
- caution: LVEF <55%
Drug Interactions .
Overview
selumetinib
kinase inhibitor
- CYP3A4 substrate
- antiplatelet/anticoagulant effects
- cardiotoxic effects
- rhabdomyolysis
- avoid supplemental vitamin E if daily vitamin E intake greater than recommended or safe limits; combo may incr. risk of bleeding; additive effects, antiplatelet and anticoagulant effects augmented by vitamin E content in selumetinib capsules
Avoid/Use Alternative
- adagrasib
- apalutamide
- aprepitant
- atazanavir
- avacopan
- berotralstat
- bosentan
- butalbital
- carbamazepine
- cenobamate
- ceritinib
- chloramphenicol
- ciprofloxacin
- clarithromycin
- clofazimine
- cobicistat
- colchicine
- conivaptan
- crizotinib
- cyclosporine
- dabrafenib
- danazol
- darunavir
- diltiazem
- dronedarone
- duvelisib
- efavirenz
- encorafenib
- enzalutamide
- epirubicin
- erythromycin
- etravirine
- fedratinib
- fexinidazole
- fluconazole
- fosamprenavir
- fosphenytoin
- ginkgo
- grapefruit
- idarubicin
- idelalisib
- imatinib
- isavuconazonium
- itraconazole
- ivosidenib
- ketoconazole
- lefamulin
- lenacapavir
- letermovir
- levoketoconazole
- lonafarnib
- lopinavir/ritonavir
- lorlatinib
- lumacaftor/ivacaftor
- mavacamten
- mifepristone
- mitapivat
- mitotane
- modafinil
- nafcillin
- nefazodone
- nelfinavir
- netupitant
- nilotinib
- nirogacestat
- pacritinib
- pentobarbital
- pexidartinib
- phenobarbital
- phenytoin
- posaconazole
- primidone
- red yeast rice
- repotrectinib
- ribociclib
- rifabutin
- rifampin
- rifapentine
- rilzabrutinib
- ritonavir
- sotorasib
- St. John's wort
- tipranavir
- tucatinib
- verapamil
- voriconazole
Monitor/Modify Tx
- acalabrutinib
- adalimumab
- ado-trastuzumab emtansine
- afatinib
- aldesleukin
- alogliptin
- alpha-tocopherol (vitamin E)
- alprazolam
- alteplase
- amiodarone
- amlodipine
- anacaulase topical
- anagrelide
- antithrombin
- apixaban
- argatroban
- asciminib
- asparaginase
- aspirin
- atorvastatin
- avapritinib
- avelumab
- axitinib
- belumosudil
- berberine
- bevacizumab
- bezlotoxumab
- bicalutamide
- binimetinib
- bivalirudin
- bortezomib
- bosutinib
- brentuximab vedotin
- bromelain
- bromfenac ophthalmic
- cabazitaxel
- cabozantinib
- calaspargase
- cangrelor
- capecitabine
- capivasertib
- caplacizumab
- carfilzomib
- celecoxib
- certolizumab pegol
- chlorzoxazone
- cilostazol
- cimetidine
- citalopram
- clopidogrel
- clotrimazole oropharyngeal
- clozapine
- cobimetinib
- collagenase clostridium histolyticum
- cranberry
- cyclophosphamide
- cysteamine
- dabigatran
- dalteparin
- danshen
- daptomycin
- daridorexant
- dasatinib
- daunorubicin
- deferasirox
- defibrotide
- desvenlafaxine
- deuruxolitinib
- diclofenac
- diclofenac ophthalmic
- diclofenac topical
- diflunisal
- dimethyl fumarate
- diosmin
- dipyridamole
- diroximel fumarate
- doxorubicin
- duloxetine
- edoxaban
- elafibranor
- enoxaparin
- entrectinib
- epoprostenol
- eptifibatide
- erlotinib
- escitalopram
- etanercept
- ethanol
- ethinyl estradiol (contraceptive)
- etodolac
- evening primrose oil
- everolimus
- fam-trastuzumab deruxtecan
- fenofibrate
- fenofibric acid
- fenoprofen
- fenugreek
- finerenone
- flibanserin
- fluorouracil
- fluoxetine
- flurbiprofen
- flurbiprofen ophthalmic
- fluvastatin
- fluvoxamine
- fondaparinux
- fosaprepitant
- fostamatinib
- fruquintinib
- garlic
- gefitinib
- gemfibrozil
- gemtuzumab ozogamicin
- gepotidacin
- givinostat
- givosiran
- glecaprevir
- goldenseal
- golimumab
- grazoprevir
- heparin
- hydrocortisone
- hydroxychloroquine
- ibrutinib
- ibuprofen
- ibuprofen lysine
- icosapent ethyl
- ifosfamide
- iloprost inhaled
- indomethacin
- infliximab
- interferon beta 1a
- interferon beta 1b
- interferon gamma 1b
- isoniazid
- istradefylline
- ivacaftor
- ketoprofen
- ketorolac
- ketorolac ophthalmic
- kratom
- lapatinib
- larotrectinib
- lazertinib
- lenvatinib
- levomilnacipran
- lifileucel
- linagliptin
- lomitapide
- lovastatin
- lurasidone
- magnesium salicylate
- margetuximab
- maribavir
- mavorixafor
- meclofenamate
- mefenamic acid
- meloxicam
- methotrexate
- methyl salicylate topical
- milnacipran
- mirdametinib
- mitoxantrone
- mobocertinib
- monomethyl fumarate
- mycophenolate mofetil
- mycophenolic acid
- nabumetone
- naproxen
- nattokinase
- nepafenac ophthalmic
- niacin (vitamin B3)
- nicardipine
- nintedanib
- nusinersen
- omega-3-acid
- osilodrostat
- osimertinib
- oxaliplatin
- oxaprozin
- palbociclib
- paroxetine
- pazopanib
- pegaspargase
- peginterferon beta 1a
- penicillin G
- pentosan polysulfate sodium
- pentoxifylline
- peppermint
- pertuzumab
- pibrentasvir
- pioglitazone
- piperacillin
- piroxicam
- pirtobrutinib
- pitavastatin
- plasminogen, human
- ponatinib
- porfimer
- pralsetinib
- prasugrel
- pravastatin
- propafenone
- quercetin
- raltegravir
- ramucirumab
- ranibizumab
- ranolazine
- regorafenib
- remdesivir
- remibrutinib
- resveratrol
- reteplase
- revakinagene taroretcel
- ripretinib
- ritlecitinib
- rivaroxaban
- ropeginterferon alfa-2b
- rosiglitazone
- rosuvastatin
- rucaparib
- salsalate
- saw palmetto
- saxagliptin
- selpercatinib
- sepiapterin
- sertraline
- simvastatin
- sirolimus albumin-bound
- sitagliptin
- sorafenib
- sotatercept
- spironolactone
- stiripentol
- sulindac
- sunitinib
- tenecteplase
- ticagrelor
- tirofiban
- tisotumab vedotin
- tivozanib
- tolmetin
- tolvaptan
- tovorafenib
- trabectedin
- trametinib
- trastuzumab
- trazodone
- treosulfan
- treprostinil
- trofinetide
- upadacitinib
- vadadustat
- valproic acid
- vandetanib
- venlafaxine
- vilazodone
- viloxazine
- vinpocetine
- vonoprazan
- vorapaxar
- vortioxetine
- warfarin
- willow bark
- xanomeline
- zanidatamab
- zanubrutinib
- zenocutuzumab
- zileuton
- ziv-aflibercept
- zongertinib
Caution Advised
- armodafinil
- artemether/lumefantrine
- belzutifan
- bexarotene
- brigatinib
- clobazam
- darolutamide
- dexamethasone
- dicloxacillin
- echinacea
- elagolix
- enasidenib
- eslicarbazepine acetate
- felbamate
- ginseng, Asian
- glycerol phenylbutyrate
- griseofulvin
- meropenem
- nevirapine
- odevixibat
- olutasidenib
- omaveloxolone
- oxcarbazepine
- perampanel
- prednisone
- rufinamide
- sarilumab
- sunvozertinib
- suzetrigine
- tazemetostat
- tecovirimat
- telotristat ethyl
- tocilizumab
- topiramate
- vaborbactam
- vamorolone
- vemurafenib
- vinblastine
- vorasidenib
Adverse Reactions .
Serious Reactions
- cardiomyopathy
- retinal vein occlusion
- retinal pigment epithelial detachment
- diarrhea, severe
- GI toxicity, severe
- rash, severe
- hand-foot syndrome
- rhabdomyolysis
- hypoxia
- acute kidney injury
Common Reactions
- vomiting
- rash
- CK incr.
- abdominal pain
- diarrhea
- nausea
- xeroderma
- musculoskeletal pain
- fatigue
- fever
- albumin decr.
- stomatitis
- paronychia
- headache
- pruritus
- ALT or AST incr.
- dermatitis
- constipation
- alopecia
- hair discoloration
- amylase incr.
- lipase incr.
- epistaxis
- electrolyte abnormalities
- hematuria
- proteinuria
- appetite decr.
- LVEF decr.
- edema
- tachycardia
- skin infection
- alk phos incr.
- visual impairment
- xerostomia
- weight gain
- acute kidney injury
- dyspnea
- HTN
- gastroenteritis
- URI
- eczema
- Hgb decr.
- neutrophils decr.
- lymphocytes decr.
Safety/Monitoring .
Monitoring Parameters
pregnancy test at baseline; LVEF at baseline, then q3mo x1y, then q6mo and as clinically indicated; CK at baseline, then periodically and as clinically indicated; ophthalmic exam at baseline, then regularly and if ocular signs/symptoms; dermatologic exams
Pregnancy/Lactation .
Pregnancy
Clinical Summary
weigh risk/benefit during pregnancy; risk of teratogenicity and embryo-fetal death based on animal data at 5x systemic exposure and drug's mechanism of action
Individuals of Reproductive Potential
obtain pregnancy test before tx start; avoid pregnancy by using effective contraception during tx and x1wk after D/C in patients of childbearing potential and male patients
Lactation
Clinical Summary
avoid breastfeeding during tx and x1wk after D/C; no human data available to assess risk of infant harm or effects on milk production
Pharmacology .
Metabolism: liver; CYP450: 1A2, 2A6, 2C9, 2C19, 2E1, 3A4 (primary), 3A5 substrate; UGT: 1A1, 1A3 substrate; Info: active metabolite
Excretion: feces 59% (19% unchanged), urine 33% (<1% unchanged); Half-life: 6.2h
Subclass: Kinase Inhibitors, MEK Inhibitors ; Neurofibromatosis
Mechanism of Action
inhibits mitogen-activated protein kinase (MAPK) kinases 1 and 2 (MEK1 and MEK2), resulting in inhibition of downstream phosphorylation of extracellular signal-related kinase (ERK) pathway and cell proliferation
Formulary .
No Formulary Selected
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