Tucatinib (Systemic)
Jeneng merek: Tukysa
Kelas obat:
Agen Antineoplastik
Panganggone Tucatinib (Systemic)
Kanker Payudara
Digunakake ing kombinasi karo trastuzumab lan Capecitabine kanggo perawatan kanker payudara lanjut sing ora bisa direseksi utawa metastatik positif HER2 ing wong diwasa, kalebu sing duwe metastase otak, sing sadurunge diobati karo ≥1 anti-HER2- regimen adhedhasar ing setelan metastatik (ditunjuk minangka obat yatim piatu dening FDA kanggo kanker iki).
Kanker Kolorektal
Digunakake ing kombinasi karo trastuzumab kanggo perawatan wong diwasa kanthi tipe liar RAS, kanker kolorektal HER2-positif sing ora bisa direseksi utawa metastatik sing wis maju sawise perawatan karo fluoropyrimidine-, oxaliplatin-, lan irinotecan- adhedhasar kemoterapi.
Akselerasi persetujuan adhedhasar tingkat respon tumor lan daya tahan respon; persetujuan sing terus-terusan bisa uga gumantung ing verifikasi lan katrangan babagan manfaat klinis ing studi konfirmasi.
Ditetepake obat yatim piatu dening FDA kanggo perawatan kanker kolorektal sing positif HER2.
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Carane nggunakake Tucatinib (Systemic)
Umum
Skrining Pretreatment
Patient Monitoring
Premedikasi lan Profilaksis
Pangawasan Dispensing lan Administrasi
Administrasi
Administrasi Lisan h4>
Administrasi kaping pindho saben dina, kira-kira 12 jam ing wektu sing padha saben dina, tanpa preduli saka dhaharan.
Tablet ngulu kanthi utuh; aja ngunyah, remuk, retak, pecah, utawa pamisah.
Yen dosis tucatinib ora kejawab utawa muntah, njupuk dosis sabanjure ing wektu sing dijadwalake kanthi rutin.
Dosis h3> Wong diwasa
Kanker Payudara Oral
300 mg kaping pindho saben dina ing kombinasi karo trastuzumab lan capecitabine. Terusake nganti penyakit berkembang utawa keracunan sing ora bisa ditampa.
Konsultasi label pabrikan utawa protokol sing diterbitake kanggo informasi babagan dosis lan cara lan urutan administrasi agen antineoplastik liyane sing digunakake ing kombinasi karo tucatinib.
Bisa ngatur capecitabine lan tucatinib ing wektu sing padha. Ing panaliten HER2CLIMB, capecitabine 1 g / m2 kaping pindho saben dina sajrone 30 menit sawise mangan ditindakake ing dina 1-14 lan trastuzumab 8 mg / kg IV wiwitane, banjur 6 mg / kg IV utawa 600 mg kanthi injeksi sub-Q. diterbitake ing dina 1 saben siklus 21 dina.
Kanker Kolorektal Oral300 mg kaping pindho saben dina kanthi kombinasi trastuzumab. Terusake nganti penyakit berkembang utawa keracunan sing ora bisa ditampa.
Konsultasi label pabrikan utawa protokol sing diterbitake kanggo informasi babagan dosis lan cara lan urutan administrasi agen antineoplastik liyane sing digunakake ing kombinasi karo tucatinib.
Modifikasi Dosis kanggo Keracunan OralInterupsi sauntara saka terapi, ngurangi dosis, lan/utawa mandhek tamba permanen bisa uga dibutuhake. Yen perlu ngurangi dosis, ngurangi dosis kaya sing diterangake ing Tabel 1.
Tabel 1. Pengurangan Dosis kanggo Toksisitas Tucatinib.1Tingkat Pengurangan Dosis
Pengurangan Dosis sing Disaranake kanggo Reaksi Saleh
Kaping pisanan
250 mg kaping pindho saben dina
Kapindho
200 mg kaping pindho saben dina
Katelu
150 mg kaping pindho saben dina
Kapat
Permanen mandhegake tucatinib
Yen ana reaksi salabetipun, ubah dosis sesuai (pirsani Tabel 2).
Tabel 2: Modifikasi Dosis kanggo Toksisitas Tucatinib1Reaksi lan Keruwetan Saru
Modifikasi
Diare (Kelas 3 tanpa pengobatan anti diare)
Miwiti utawa intensifake terapi medis sing cocok.
Tuhan tucatinib nganti pulih nganti ≤ Grade 1, banjur diterusake ing tingkat dosis sing padha.
Diare (Kelas 3 kanthi perawatan anti-diare )
Miwiti utawa nggedhekake terapi medis sing cocok.
Tekan tucatinib nganti pulih nganti ≤ Grade 1, banjur diterusake maneh ing tingkat dosis ngisor sabanjure.
Diare (Grade). 4)
Stop permanen
Hepatotoksisitas (Bilirubin grade 2 [>1,5 nganti 3 × ULN])
Tahan tucatinib nganti pulih nganti ≤ Grade 1, banjur diterusake ing tingkat dosis sing padha.
Hepatotoksisitas (ALT utawa AST kelas 3 [> 5 nganti 20 × ULN] UTAWA bilirubin kelas 3 [> 3 nganti 10 × ULN])
Tahan tucatinib nganti pulih nganti ≤ Grade 1, banjur nerusake maneh ing tingkat dosis ngisor sabanjure.
Hepatotoksisitas (ALT utawa AST Grade 4 [> 20 × ULN] UTAWA bilirubin Grade 4 [> 10 × ULN ])
Stop permanen
Hepatotoksisitas (ALT utawa AST > 3 × ULN LAN Bilirubin > 2 × ULN)
Stop permanen
Reaksi salabetipun liyane (Grade 3)
Tahan tucatinib nganti pulih nganti ≤ Grade 1, banjur diterusake maneh ing tingkat dosis ngisor sabanjure.
Reaksi ala liyane (Grade 4)
Singkirake kanthi permanen
Panganggone Obat-obatan sing Ngaruhi Enzim Mikrosomal Hepatik
Aja nggunakake tucatinib bebarengan karo inhibitor kuat cytochrome P-450 (CYP) isoenzyme 2C8. Yen panggunaan bebarengan ora bisa dihindari, nyuda tucatinib dadi 100 mg kaping pindho saben dina. Yen panggunaan bebarengan inhibitor CYP2C8 sing kuat dihentikan, bali dosis tucatinib (sawise 3 ngilangi setengah umur inhibitor CYP2C8) menyang dosis sing digunakake sadurunge miwiti inhibitor CYP2C8.
Populasi Khusus
Gangguan Hepatik
OralGangguan ati sing abot (kelas Child-Pugh C): Ngurangi dosis dadi 200 mg kaping pindho saben dina.
Gagal ati sing entheng utawa moderat (kelas A utawa B Anak-Pugh): Ora ana penyesuaian dosis sing dibutuhake.
Gangguan Ginjal
OralGangguan ginjel entheng utawa moderat (Clcr 30–89 mL/menit nganggo formula Cockcroft-Gault): Ora perlu pangaturan dosis.
Genal sing abot gangguan (Clcr <30 mL/menit nggunakake formula Cockcroft-Gault): Terapi kombinasi karo tucatinib, capecitabine, lan trastuzumab ora dianjurake.
Gunakake Geriatric
Ora ana rekomendasi dosis khusus kanggo pasien ≥ 65 taun.
Pènget
Kontraindikasi
Pènget/PanandhapDiare
Diare parah sing digandhengake karo dehidrasi, hipotensi, ciloko ginjel akut, lan pati dilaporake. Wektu rata-rata kanggo wiwitan diare yaiku 12 dina. Wektu rata-rata kanggo ngrampungake diare yaiku 8 dina.
Atur terapi antidiare kaya sing dituduhake sacara klinis yen diare kedadeyan sajrone terapi. Nindakake tes diagnostik kanggo ngilangi panyebab diare liyane. Yen ana diare, interupsi sauntara, nyuda dosis, utawa mandheg terapi permanen bisa uga dibutuhake.
Toksisitas Hepatik
Hepatotoksisitas sing abot (yaiku, paningkatan konsentrasi ALT lan/utawa AST >5 kaping ULN, paningkatan konsentrasi bilirubin serum>3 kaping ULN).
Pantau tes fungsi ati (yaiku, ALT, AST, konsentrasi bilirubin) sadurunge wiwitan terapi, saben 3 minggu sabanjure, lan kaya sing dituduhake sacara klinis. Yen hepatotoksisitas kedadeyan, interupsi sauntara, nyuda dosis, utawa mandheg terapi permanen bisa uga dibutuhake.
Morbiditas lan Mortalitas Janin/Neonatal
Adhedhasar mekanisme tumindak lan temuan kewan, tucatinib bisa nyebabake cilaka janin. Toksisitas embriofetal lan teratogenisitas dituduhake ing kewan.
Aja meteng sajrone terapi. Nindakake tes meteng sadurunge miwiti terapi tucatinib ing wanita potensial reproduksi. Nasihati wanita sing duwe potensi reproduksi lan wong lanang sing dadi mitra wanita kasebut supaya nggunakake kontrasepsi sing efektif nalika njupuk obat kasebut lan ≥1 minggu sawise dosis pungkasan obat kasebut. Yen digunakake nalika meteng utawa yen pasien ngandhut, kabarake pasien yen ana bebaya kanggo janin.
Gangguan Kesuburan
Asil pasinaon kewan nuduhake tucatinib bisa ngrusak kesuburan lanang lan wadon.
Populasi Tertentu
KandhutanBisa nyebabake cilaka janin.
Aja meteng sajrone terapi. Nindakake tes meteng sadurunge miwiti terapi tucatinib ing wanita sing duwe potensi reproduksi.
Anjurake wanita potensial reproduksi lan wong lanang sing dadi mitra wanita kasebut supaya nggunakake kontrasepsi sing efektif nalika nampa obat kasebut lan ≥1 minggu sawise pungkasan. dosis obat kasebut. Yen digunakake nalika meteng utawa yen pasien ngandhut, kabarake pasien potensial bebaya janin.
LaktasiOra dingerteni manawa tucatinib utawa metabolite nyebar menyang susu, mengaruhi produksi susu, utawa mengaruhi bayi sing disusui.
Wong wadon ora kena nyusoni sajrone terapi lan ≥7 dina sawise dosis pungkasan obat kasebut.
Panggunaan PediatrikKeamanan lan khasiat ora ditetepake ing pasien pediatrik.
Panggunaan GeriatrikIng studi HER2CLIMB, 26% pasien sing diobati tucatinib umure ≥65 taun lan 2,5% umure ≥75 taun. Ora ana bedane khasiat sakabèhé kanggo wong diwasa sing luwih enom. Reaksi salabetipun serius (contone, diare, muntah, mual) dilapurake luwih kerep ing pasien geriatri.
Ing studi MOUNTAINEER, 12 pasien umure ≥65 taun; Nanging, ana sawetara banget pasien kanggo netepake beda ing efektifitas utawa safety.
Gangguan HepatikGangguan ati entheng utawa moderat: Paparan sistemik ora owah sacara substansial. Ora ana pangaturan dosis sing dibutuhake.
Gagal ati sing abot: Paparan sistemik mundhak 1,6 kali lipat. Ngurangi dosis tucatinib dadi 200 mg kaping pindho saben dina.
Gagal GinjalGagal ginjel entheng utawa moderat: Farmakokinetik ora kena pengaruh sacara substansial. Ora ana pangaturan dosis sing dibutuhake.
Gagal ginjel abot: Farmakokinetik ora diteliti.
Efek Samsaya Awon
Efek salabetipun (≥20%) pasien kanker payudara metastatik: Diare, palmar-plantar erythrodysesthesia, mual, hepatotoksisitas, mutahke, stomatitis, nyuda napsu, anemia, ruam .
Efek salabetipun (≥20%) saka pasien kanker kolorektal sing ora bisa diobati utawa metastatik: Diare, lemes, ruam, mual, nyeri weteng, reaksi sing gegandhengan karo infus, pyrexia.
Tucatinib mundhak Scr kanthi nyandhet sekresi tubular kreatinin. Konsentrasi Scr sing luwih dhuwur bisa dibatalake ing umume pasien sawise terapi mandheg. Panganggone spidol alternatif kanggo fungsi ginjel bisa uga dibutuhake yen konsentrasi Scr dhuwur tetep.
Apa obatan liyane bakal mengaruhi Tucatinib (Systemic)
Metabolisme utamane dening CYP2C8 lan, kanthi luwih sithik, dening CYP3A.
In vitro, inhibitor isoenzim CYP 2C8 lan 3A sing bisa dibalik. Inhibitor CYP3A sing gumantung wektu, nanging ora nyandhet isoenzim CYP 1A2, 2B6, 2C9, 2C19, lan 2D6, utawa uridine diphosphate-glucuronosyltransferase (UGT) 1A1.
Substrat P-glikoprotein (P-gp) ) lan protein tahan kanker payudara (BCRP), nanging dudu substrat transporter anion organik (OAT) 1, OAT3, transporter kation organik (OCT) 1, OCT3, polipeptida pengangkut anion organik (OATP) 1B1, OATP1B3, multidrug lan ekstrusi racun. (MATE) 1, MATE2K, utawa pompa ekspor uyah empedu (BSEP).
Obat-obatan sing Ngaruhi Enzim Mikrosomal Hepatik
Inhibitor CYP2C8 sing kuat: Kemungkinan tambah paparan sistemik kanggo tucatinib lan tambah risiko efek samping. efek. Aja nggunakake bebarengan. Yen panggunaan bebarengan ora bisa dihindari, nyuda dosis tucatinib dadi 100 mg kaping pindho saben dina. Yen panggunaan bebarengan inhibitor CYP2C8 sing kuat dihentikan, bali dosis tucatinib (sawise 3 eliminasi setengah umur inhibitor CYP2C8) menyang dosis sing digunakake sadurunge miwiti inhibitor CYP2C8.
Inhibitor CYP2C8 moderat: Kemungkinan tambah paparan sistemik kanggo tucatinib lan tambah risiko efek salabetipun. Yen digunakake bebarengan, monitor tandha-tandha keracunan tucatinib.
Inducer CYP3A sing kuat utawa CYP2C8 moderat: Bisa nyuda paparan sistemik kanggo tucatinib lan nyuda khasiat tucatinib. Aja nggunakake bebarengan.
Obat sing dimetabolisme dening Enzim Mikrosomal Hepatik
Substrat CYP3A: Kemungkinan tambah paparan sistemik menyang substrat CYP3A lan tambah risiko efek samping saka obat substrat. Aja nggunakake bebarengan karo substrat CYP3A sing duwe indeks terapeutik sing sempit. Yen panggunaan bebarengan ora bisa dihindari, nyuda dosis substrat CYP3A sing cocog.
Obat-obatan sing Dipengaruhi Sistem Transportasi
Substrat P-gp: Kemungkinan tambah paparan sistemik saka substrat P-gp lan tambah risiko efek samping saka obat substrat. Yen digunakake bebarengan karo substrat P-gp sing nduweni indeks terapeutik sing sempit, kurangake dosis substrat P-gp sing cocog.
Obat Spesifik
Obat
Interaksi
Komentar
Digoxin
Tambah AUC lan konsentrasi plasma puncak digoxin 1,5- lan 2,4 kaping, mungguh
Aja nggunakake bebarengan; Yen bebarengan ora bisa dihindari, atur dosis digoxin sing cocog
Gemfibrozil
Tambah AUC lan konsentrasi plasma puncak tucatinib 3- lan 1,6 kali lipat, masing-masing
Aja nggunakake bebarengan; yen nggunakake bebarengan ora bisa dihindari, ngurangi dosis tucatinib dadi 100 mg kaping pindho saben dina
Nalika gemfibrozil dihentikan, bali dosis tucatinib (sawise 3 eliminasi setengah umur gemfibrozil) menyang dosis sadurunge
Itraconazole
Ningkatake AUC lan konsentrasi plasma puncak tucatinib 1,3 kali lipat.
Metformin
Ngurangi reresik ginjel saka metformin tanpa efek ing GFR
Tambah AUC lan konsentrasi plasma puncak metformin kanthi masing-masing 1,4 lan 1,1 lipat
Midazolam
Tambah AUC lan konsentrasi plasma puncak midazolam 5,7- lan 3 kali lipat, masing-masing
Omeprazole
Ora ana efek klinis penting ing farmakokinetik tucatinib
Rifampin
Muda AUC lan konsentrasi plasma puncak tucatinib 48 lan 37%, masing-masing
Aja nggunakake bebarengan
Tolbutamide
Ora ana efek klinis penting ing farmakokinetik tucatinib
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