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BRAF V600E MCRC Lub Hom Phiaj Rau Lub Hom Phiaj: Braftovi Ob-tshuaj&Peb-txoj kev siv yeeb tshuaj tau pom zoo!

[Dec 09, 2020]

Ono Pharmaceutical tsis ntev los no tau tshaj tawm tias ob lub hom phiaj tshuaj tua kab mob tshuaj-BRAF inhibitor Braftovi (encorafenib) thiab MEK inhibitor Mektovi (binimetinib) tau pom zoo hauv Nyij Pooj rau qhov ntsuas pom tshiab rau kev kho mob tom qab kev siv tshuaj rau cov neeg mob uas tsis muaj kev tiv thaiv qib siab lossis rov ua haujlwm BRAF-mutated colorectal mob qog noj ntshav (mCRC). Hauv qhov ntsuas no, Braftovi ua ke nrog Mektovi thiab Erbitux (cetuximab) raws li peb-tshuaj cov tshuaj, Braftovi ua ke nrog Erbitux ua ob lub tshuaj yeeb tshuaj. Erbitux yog tshuaj monoclonal antibody tshuaj rau EGFR.


Hauv lub ntiaj teb, mob caj pas (CRC) yog tus mob cancer thib 3 ntawm cov txiv neej thiab mob cancer thib ob rau cov poj niam Nws kwv yees hais tias BRAF hloov tau tshwm sim nyob rau thaj tsam li ntawm 8-12% ntawm cov neeg mob uas muaj mob nqaij hlav txha caj qaum (mCRC), thiab kev kuaj pom feem ntau tsis zoo, uas sawv cev rau qib siab ntawm kev kho mob tsis txaus ntseeg. Kev hloov pauv BRAF V600E yog qhov sib txawv heev ib txwm muaj BRAF hloov pauv. Kev tuag ntawm CRC cov neeg mob nrog BRAF V600E hloov pauv ntau dua ob npaug ntawm cov neeg mob hom BRAF.



Qhov kev pom zoo no yog ua raws li cov txiaj ntsig ntawm thoob ntiaj teb, random, qhib-daim ntawv lo Lub Sij Hawm III BEACON CRC kev kawm. Txoj kev tshawb no tau nqa tawm hauv BRAF V600E cov neeg mob mCRC uas tau muaj kev vam meej tom qab tau txais ib lossis ob txoj kev kho mob. Ob-tshuaj tshuaj ntawm Braftovi (Braftovi + Erbitux), peb-tshuaj tshuaj ntawm Braftovi (Braftovi + Erbitux + Mektovi), thiab Erbitux tau raug ntsuas. Kev ua tau zoo thiab kev nyab xeeb ntawm kev sib xyaw ua ke nrog kev siv tshuaj irinotecan-muaj kev kho mob (tswj kev tswj hwm: irinotecan + Erbitux, lossis FOLFIR + Erbitux).


Cov txiaj ntsig tau pom tias piv nrog pab pawg tswj hwm, tag nrho cov muaj sia nyob (OS) thiab lub hom phiaj ntawm cov lus teb (ORR) ntawm Braftovi ob-tshuaj yeeb tshuaj pab pawg thiab peb pawg tshuaj yeeb tshuaj pom kev txhim kho. Cov txiaj ntsig ntawm qhov kev piav qhia tau pom tias qhov kev hloov tshuaj rau ob lub tshuaj thiab peb-cov tshuaj muaj cov cuam tshuam zoo ib yam hauv cov neeg tshawb nrhiav tag nrho. Qhov ob-tshuaj yeeb tshuaj thiab peb-tshuaj yeeb tshuaj tsis ua rau pom kev lom lom uas tsis muaj qhov xav txog.


Cov ntaub ntawv tshwj xeeb yog: Piv nrog pab pawg tswj hwm, lub sijhawm muaj sia nyob tag nrho ntawm Braftovi peb-tshuaj yeeb tshuaj pab pawg tau siv sijhawm ntev (qhov nruab nrab OS: 9.0 lub hlis vs 5.4 lub hlis), thiab kev pheej hmoo ntawm kev tuag tau txo qis los ntawm 48% (HR=0.52; 95% CI: 0.39), 0.70; p< 0.0001),="" orr="" nce="" siab="" (26.1%="" vs="" 1.9%,=""><>


Tsis tas li ntawd, piv nrog pab pawg tswj hwm, tag nrho cov muaj sia nyob ntawm Braftovi ob-tshuaj yeeb tshuaj pab pawg tau siv sijhawm ntev ntev (nruab nrab OS: 8.4 lub hlis vs 5.4 lub hlis), thiab kev pheej hmoo ntawm kev tuag tau txo qis txog 40% (HR=0.60; 95% CI: 0.45, 0.79; P=0.0003), ORR nce ntau (20% vs 2%, p< 0.0001).="" (3)="" hauv="" qhov="" kev="" tshawb="" fawb="" no,="" pawg="" braftovi="" ob-tshuaj="" ua="" yeeb="" tshuaj="" thiab="" peb-pawg="" tshuaj="" noj="" tsis="" ua="" rau="" pom="" kev="" lom="" neeg="" uas="" tsis="" muaj="" qhov="" xav="" txog="" kev="" lom="">


Braftovi' s lub chaw tshuaj muaj tshuaj encorafenib yog qhov ncauj me me molecule BRAF inhibitor, thiab Mektovi' s lub chaw tshuaj muaj txiaj ntsig binimetinib yog lub qhov ncauj me me molecule MEK inhibitor. MEK thiab BRAF yog ob qhov tseem ceeb protein kinases hauv MAPK cov paib hais qhia (RAS-RAF-MEK-ERK). Cov kev tshawb fawb pom tau tias txoj kev no tswj hwm ntau yam ntawm cov haujlwm tseem ceeb ntawm tes nrog rau kev nthuav dav ntawm tes, kev sib txawv, kev ciaj sia, thiab angiogenesis. Hauv ntau cov qog nqaij hlav, xws li kab mob melanoma, mob plab hnyuv taum, thiab mob qog nqaij hlav cancer, cov protein nyob hauv cov phiajcim no tau lees tias tau ua haujlwm tsis zoo.


Hauv Tebchaws Meskas, Braftovi + Mektovi ua ke tau pom zoo rau kev tsis tuaj yeem lossis metastatic melanoma nrog BRAF V600E lossis BRAF V600K kev sib hloov. Braftovi tsis haum rau kev kho mob ntawm hom tsiaj qus BRAF melanoma. Hauv Tebchaws Europe, kev sib xyaw ua ke tau txais kev pom zoo rau cov neeg mob cov neeg laus uas tsis muaj kev tiv thaiv lossis metastatic melanoma nrog BRAF V600 hloov tau. Hauv Nyij Pooj, qhov kev sib xyaw ua ke no tau pom zoo rau BRAF-mutated tsis tuaj yeem tiv thaiv tus mob melanoma.


Braftovi thiab Mektovi tau tshawb pom thiab tsim los ntawm Array BioPharma. Thaum Lub Rau Hli 2019, Pfizer tau txais Array BioPharma rau US $ 11.4 billion. Tam sim no, Pfizer muaj txoj cai tshwj xeeb rau ob yam tshuaj hauv Tebchaws Meskas thiab Canada. Ono Pharmaceutical tso cai muaj cov cai tshwj xeeb ntawm 2 cov tshuaj nyob rau Nyiajpoom Teb thiab Kaus Lim Qab Teb, Medison tau tso cai cov cai tshwj xeeb ntawm 2 cov tshuaj hauv tebchaws Israel, thiab Pierre Fabre Group tau tso cai tshwj xeeb rau 2 tshuaj nyob hauv txhua lub tebchaws, suav nrog Europe, Latin America thiab Asia ( Tshwj tsis yog Nyij Pooj thiab Kaus lim qab teb).