Yini i-Gemtuzumab: Ukusetshenziswa, Umthamo, Imiphumela Eceleni nokuningi

I-Gemtuzumab iyimithi yomdlavuza eqondiwe ehlanganisa i-antibody nomuthi we-chemotherapy ukwelapha izinhlobo ezithile ze-acute myeloid leukemia (AML). Lokhu kwelashwa okukhethekile kusebenza njenge-missile eqondisiwe, ifuna amaseli omdlavuza athile ngenkathi ishiya amaseli amaningi anempilo yedwa.

Uma wena noma othile omkhathalelayo enikezwe i-gemtuzumab, cishe uzizwa ukhungathekile ngemibuzo. Lokho kujwayelekile futhi kuqondakala ngokuphelele. Le mithi imelela ithemba kubantu abaningi ababhekene ne-AML, futhi ukuqonda ukuthi isebenza kanjani kungakusiza uzizwe uqiniseka ngohambo lwakho lokwelashwa.

Yini i-Gemtuzumab?

I-Gemtuzumab iyi-antibody-drug conjugate, okusho ukuthi yizindlela zokwelapha ezimbili ezinamandla ezihlanganiswe zaba yinye. Ingxenye ye-antibody isebenza njengedivayisi yokuzula ethola amaseli omdlavuza aneprotein ethile ebizwa nge-CD33 ebusweni bawo. Uma isiqinile kula maseli, iletha umuthi we-chemotherapy onamandla ngqo ngaphakathi kwawo.

Cabanga ngayo njengesistimu yokulethwa eqondiwe engahlukanisa phakathi kwamaseli omdlavuza namaseli anempilo. Le ndlela eqondile isiza ukunciphisa ukulimala ezicutshini ezijwayelekile ngenkathi igxila ekwelashweni lapho kudingeka khona kakhulu. Umuthi uhamba ngegama lomkhiqizo elithi Mylotarg futhi ungowesigaba semithi ebizwa ngokuthi ama-monoclonal antibodies.

Lokhu kwelashwa kuklanyelwe ngokuqondile i-acute myeloid leukemia, uhlobo lomdlavuza wegazi oluthinta amaseli amhlophe egazi. I-protein ye-CD33 itholakala kumaseli amaningi e-AML, okwenza i-gemtuzumab ibe yindlela ephumelelayo ezigulini eziningi ezinalesi simo.

Isetshenziselwani i-Gemtuzumab?

I-Gemtuzumab isetshenziselwa ikakhulukazi ukwelapha i-acute myeloid leukemia kubantu abadala kanye nezingane ezineminyaka engaphezu kwengu-2 ubudala. Udokotela wakho ngokuvamile uzoncoma le mithi uma amaseli akho omdlavuza ehlola ukuthi aneprotein ye-CD33, okwenzeka cishe kuma-90% amacala e-AML.

Lo muthi uvame ukusetshenziswa ngokuhlangana neminye imithi ye-chemotherapy efana ne-daunorubicin ne-cytarabine ye-AML esanda kutholakala. Le ndlela yokuhlanganisa ibonise imiphumela engcono kunokusebenzisa i-chemotherapy yodwa. Ithimba lakho lezempilo lizothatha isinqumo esingcono kakhulu sokwelashwa ngokusekelwe esimweni sakho esithile, iminyaka yakho, nempilo yakho yonke.

Kwezinye izimo, i-gemtuzumab ingasetshenziswa njengokwelashwa okukodwa ezigulini ezingakwazi ukubekezelela i-chemotherapy eqinile. Lokhu kungasebenza kubantu abadala noma labo abanezimo zezempilo ezenza i-chemotherapy ejwayelekile ibe yingozi kakhulu.

Isebenza Kanjani I-Gemtuzumab?

I-Gemtuzumab isebenza ngenqubo eyinkimbinkimbi yezinyathelo ezimbili eqondise amaseli omdlavuza ngokunemba okumangalisayo. Okokuqala, ingxenye ye-antibody iyabona futhi ibophela kumaprotheni e-CD33 ngaphezulu kwamaseli e-AML. Lokhu kufana nokhiye othola ilokhi yawo ethile.

Lapho isinamathele, iseli lomdlavuza lidonsa yonke i-molecule ye-gemtuzumab ngaphakathi ngenqubo ebizwa ngokuthi i-internalization. Ngaphakathi kweseli, ingxenye ye-chemotherapy (ebizwa ngokuthi i-calicheamicin) iyakhululwa futhi iqala ukubhubhisa iseli lomdlavuza ngaphakathi. Le ndlela eqondiwe isho ukuthi umuthi onamandla we-chemotherapy ulethwa ngqo lapho udingeka khona.

Lokhu kuthathwa njengomuthi womdlavuza onamandla amaphakathi. Ngenkathi inamandla ngokwanele ukubulala amaseli omdlavuza ngempumelelo, uhlelo lokulethwa oluqondiwe lusiza ukunciphisa imiphumela emibi ebanzi ongase uyithole nge-chemotherapy yendabuko. Kodwa-ke, kusengukwelashwa okungathi sína okudinga ukuqashwa ngokucophelela yithimba lakho lezokwelapha.

Kufanele Ngiyithathe Kanjani I-Gemtuzumab?

I-Gemtuzumab inikezwa njenge-infusion ye-intravenous ngqo egazini lakho ngomthambo. Awukwazi ukuthatha lo muthi ngomlomo, futhi kufanele unikezwe esibhedlela noma esikhungweni esikhethekile sokwelashwa komdlavuza ngabasebenzi bezempilo abaqeqeshiwe.

Ngaphambi kokufakwa ngakunye, ithimba lakho lezokwelapha lizokunika imithi ukusiza ukuvimbela ukusabela komzimba. Lokhu kuvame ukuhlanganisa ama-antihistamines afana ne-diphenhydramine kanye ne-acetaminophen ukunciphisa umkhuhlane nokungakhululeki. Akudingeki ukuthi ugweme ukudla ngaphambi kokwelashwa, kodwa ukuhlala unamanzi ngokwanele ngokuphuza amanzi amaningi kubalulekile.

Ukufakwa ngokwako kuvame ukuthatha cishe amahora angu-2, futhi uzoqashwa eduze ngesikhathi nangemva kokwelashwa. Ithimba lakho lezempilo lizobheka noma yiziphi izimpawu zokusabela komzimba noma eminye imiphumela emibi. Hlela ukuchitha iningi losuku esikhungweni sokwelashwa, njengoba isikhathi sokuqapha esengeziwe sivame ukudingeka.

Ungase uzizwe ukhululekile ngokuletha incwadi, ithebhulethi, noma ukuba nomngane noma ilungu lomndeni elihlala nawe ngesikhathi sokwelashwa. Abantu abaningi bathola ukuthi inqubo yokufakwa ingcindezi encane lapho benento yokugcina ingqondo yabo imatasa.

Ngingayithatha isikhathi esingakanani i-Gemtuzumab?

Ubude bokwelashwa nge-gemtuzumab buxhomeke ohlelweni lwakho oluqondile lokwelashwa nokuthi usabela kahle kangakanani emuthini. Iziguli eziningi zithola i-gemtuzumab njengengxenye yokwelashwa kokungeniswa, okuvame ukuhlanganisa imijikelezo engu-1-2 enikezwa phakathi kwamasonto amaningana.

Uma uthola ukwelashwa okuhlanganisiwe neminye imithi ye-chemotherapy, ungase uthole i-gemtuzumab ngezinsuku 1, 4, kanye no-7 yomjikelezo wakho wokuqala wokwelashwa. Ezigulini ezithola i-gemtuzumab yodwa, isimiso sivame ukuhlukile, sivame ukuhlanganisa imithamo ehlukaniswe okungenani ngamasonto angu-2.

Udokotela wakho uzohlola njalo ukubalwa kwegazi lakho nokusabela okuphelele ukuze anqume ukuthi ngabe imithamo eyengeziwe iyadingeka yini. Ezinye iziguli zingase zithole i-gemtuzumab ngesikhathi sokwelashwa kokuhlanganiswa, okufika ngemva kwesigaba sokuqala sokwelashwa. Inani eliphelele lemithamo alivamile ukudlula ukwelashwa okungu-3-4.

Kubalulekile ukuqeda inkambo ephelele yokwelashwa njengoba kunqunywe, ngisho noma uqala ukuzizwa ungcono. Ukuyeka ngaphambi kwesikhathi kungavumela amaseli omdlavuza ukuthi akhule futhi abe nzima ukuwelapha.

Yiziphi Imiphumela Emibi ye-Gemtuzumab?

Njengazo zonke izidakamizwa zomdlavuza, i-gemtuzumab ingabangela imiphumela emibi, nakuba kungewona wonke umuntu oyitholayo yonke. Ukuqonda ukuthi yini ongayilindela kungakusiza ukuthi ulungiselele futhi wazi ukuthi ungaxhumana nini nethimba lakho lezempilo.

Imiphumela emibi evame kakhulu ongase uyithole ihlanganisa ukukhathala, umkhuhlane, isicanucanu, kanye nokwehla kwamaseli egazi. Le miphumela ngokuvamile ithuthuka ezinsukwini ezimbalwa zokuqala ngemva kokwelashwa futhi ivame ukuthuthuka njengoba umzimba wakho uzivumelanisa.

Nawa imiphumela emibi ebikwa kaningi, ihlelwe kusukela kwabavamile kakhulu kuya kwabavamile kancane:

• Ukukhathala nobuthakathaka obungahlala izinsuku eziningana
• Umkhuhlane nokubanda, ikakhulukazi kungakapheli amahora angama-24 ngemva kokwelashwa
• Isicanucanu nokuhlanza, okungavame ukulawulwa ngemithi
• Ukwehla kwenani lamaseli egazi amhlophe, okwandisa ingozi yokutheleleka
• Ukwehla kwenani lama-platelet, okuholela ekulimaleni kalula noma ekopheni
• Ikhanda elibuhlungu nesiyezi
• Izilonda zomlomo noma ukucasuka komphimbo
• Ukuqubuka kwesikhumba noma ukuluma

Le miphumela emibi ejwayelekile ngokuvamile iyalawuleka ngokunakekelwa okusekelayo kanye nemithi udokotela wakho angayibhala. Abantu abaningi bathola ukuthi le miphumela iyathuthuka phakathi nesonto elilodwa noma amabili ngemva kokwelashwa ngakunye.

Kukhona nemiphumela emibi engavamile kodwa ebucayi edinga ukunakekelwa kwezempilo ngokushesha. Nakuba lokhu kungenzeki ezigulini eziningi, kubalulekile ukuyazi ukuze ukwazi ukufuna usizo ngokushesha uma kudingeka.

Imiphumela emibi engavamile kodwa ebucayi ihlanganisa:

• Izinkinga ezinkulu zesibindi, okuhlanganisa isimo esibizwa ngokuthi isifo se-veno-occlusive
• Ukuphendula okukhulu komzimba ngesikhathi sokufakwa
• Ukutheleleka okukhulu ngenxa yokwehla kakhulu kwenani lamaseli egazi amhlophe
• Izinkinga ezinkulu zokopha ezivela ekwehleni okukhulu kwenani lama-platelet
• Izinkinga zesigqi senhliziyo noma ukulimala kwemisipha yenhliziyo
• Izinkinga ezinkulu zamaphaphu noma ubunzima bokuphefumula

Iqembu lakho lezempilo lizokuqapha ngokucophelela ukuze libone le miphumela emibi ngemihlolokhono yegazi ejwayelekile nokuhlolwa komzimba. Uma uhlangabezana nokuphefumula kanzima okukhulu, ubuhlungu besifuba, ukuphuzi kwesikhumba sakho noma amehlo, noma izimpawu zokutheleleka okukhulu, xhumana nodokotela wakho ngokushesha.

Ubani Ongafanele Athathe i-Gemtuzumab?

I-Gemtuzumab ayifanele wonke umuntu, futhi udokotela wakho uzohlola ngokucophelela ukuthi ingabe iyona ndlela efanele esimweni sakho. Abantu abanezimo ezithile zempilo noma izimo kungenzeka badinge ukwelashwa okuhlukile.

Akufanele uthole i-gemtuzumab uma unokungezwani komzimba okukhulu okwaziwayo emuthini noma kunoma yiziphi izithako zawo. Ngaphezu kwalokho, uma amaseli akho omdlavuza engenayo iphrotheni ye-CD33, lokhu kwelashwa ngeke kusebenze kuwe.

Kungenzeka ukuthi udokotela wakho uzokuncoma ukuthi ungayithathi i-gemtuzumab uma une:

• Isifo sesibindi esibi noma umlando wezinkinga zesibindi
• Ukutheleleka okusebenzayo, okungalawuleki
• Ukubalwa kwamangqamuzana egazi okuphansi kakhulu okungathuthuki ngokunakekelwa okusekelayo
• Izinkinga zenhliziyo ezinkulu noma ukuhlaselwa yinhliziyo kwakamuva
• Ukukhulelwa noma izinhlelo zokukhulelwa

Ukuqapha okukhethekile kuyadingeka kubantu abadala, njengoba bengase bazwe kalula imiphumela emibi. Udokotela wakho uzohlola izinzuzo ezingaba khona ngokumelene nezingozi ngokusekelwe empilweni yakho yonke nezinye izimo zezokwelapha.

Igama Lomkhiqizo we-Gemtuzumab

I-Gemtuzumab ithengiswa ngaphansi kwegama lomkhiqizo elithi Mylotarg. Leli yilo kuphela igama lomkhiqizo elitholakala ngalo lo muthi e-United States nakwamanye amazwe amaningi.

I-Mylotarg ekuqaleni yavunywa yi-FDA ngonyaka ka-2000, yasuswa emakethe ngonyaka ka-2010 ngenxa yokukhathazeka ngokuphepha, kwase kuvunywa futhi ngonyaka ka-2017 ngemiyalelo yokulinganisa evuselelwe. Ifomula yamanje ithathwa njengephephile futhi isebenza kahle kune-version yokuqala.

Uma uthola ukwelashwa kwakho, ibhodlela lomuthi lizobhalwa ngokuthi i-Mylotarg. Njengamanje azikho izinhlobo ezivamile ze-gemtuzumab ezitholakalayo, njengoba lokhu kuyimithi ekhethekile kakhulu edinga izinqubo zokukhiqiza eziyinkimbinkimbi.

Ezinye Izindlela Zokwelapha Nge-Gemtuzumab

Uma i-gemtuzumab ingafaneleki esimweni sakho, kunezindlela eziningi zokwelapha ezingenye ze-acute myeloid leukemia. Udokotela wakho uzosiza ekunqumeni inketho engcono kakhulu ngokusekelwe ohlotsheni lwakho oluthile lwe-AML, iminyaka yakho, nempilo yakho yonke.

Izinhlanganisela zokwelapha ngamakhemikhali ezijwayelekile njenge- "7+3" (i-cytarabine kanye ne-daunorubicin) zihlala ziyisisekelo sokwelashwa kwe-AML kwiziguli eziningi. Lezi zinhlanganisela zisetshenziswe ngempumelelo amashumi eminyaka futhi zingase zifaneleke uma unezimo ezithile zempilo.

Ezinye izindlela zokwelapha eziqondiwe zingase zibe izinketho kuye ngesimo sakho somdlavuza sezakhi zofuzo:

• I-Midostaurin ye-FLT3-positive AML
• I-Enasidenib ye-IDH2-mutated AML
• I-Ivosidenib ye-IDH1-mutated AML
• I-Venetoclax ihlanganiswe nokwelashwa ngamakhemikhali ngomthamo ophansi

Ezigulini ezingakwazi ukubekezelela ukwelashwa ngamakhemikhali okukhulu, izinketho ezinamandla aphansi njenge-hypomethylating agents (i-azacitidine noma i-decitabine) zingase zicatshangelwe. Lokhu kwelashwa kunobungane kodwa kusebenza kubantu abaningi abane-AML.

Ingabe i-Gemtuzumab Ingcono Kune-Chemotherapy Ejwayelekile?

I-Gemtuzumab ihlanganiswe nokwelashwa ngamakhemikhali okujwayelekile ikhombise imiphumela engcono uma iqhathaniswa nokwelashwa ngamakhemikhali kuphela ezivivinyweni eziningi zomtholampilo. Izifundo zikhombise amazinga okusinda athuthukisiwe kanye nezimpendulo ezingcono zokwelashwa uma i-gemtuzumab ingezwa ekwelashweni ngamakhemikhali kwendabuko.

Uvivinyo lwe-ALFA-0701, olunye lwezifundo ezinkulu, lwakhombisa ukuthi ukwengeza i-gemtuzumab ekwelashweni ngamakhemikhali okujwayelekile kuthuthukise ukusinda okuphelele ngezinyanga eziningana. Le nzuzo yayivelele ikakhulukazi ezigulini ezinemikhuba emihle yofuzo ye-leukemia yazo.

Noma kunjalo, "ngcono" kuncike esimweni sakho somuntu ngamunye. Ngenkathi indlela yokuhlanganisa ingase inikeze ukulawula okungcono komdlavuza, iza nemiphumela emibi eyengeziwe futhi idinga ukuqashwa okujulile. Udokotela wakho uzokusiza ukuthi ulinganise lezi zinto ngokusekelwe eminyakeni yakho, isimo sempilo, kanye nemigomo yokwelashwa.

Kwabanye abantu, ikakhulukazi abadala noma labo abanezimo zezempilo ezinye, ukwelashwa okuthambile kungase kufaneleke ngaphandle kokuthi kungase kungabi nqamule umdlavuza. Ukwelashwa okungcono kuhlala kungukuthi okunikeza ukulinganisela okuhle kakhulu kokusebenza kanye nekhwalithi yempilo.

Imibuzo Evame Ukubuzwa Mayelana ne-Gemtuzumab

Ingabe i-Gemtuzumab iphephile kubantu abanezifo zesibindi?

I-Gemtuzumab ingaba yingozi kakhulu kubantu abanezinkinga zesibindi ezikhona. Umuthi ungabangela isimo esibi esibizwa ngokuthi isifo se-veno-occlusive hepatic, esivimba ukugeleza kwegazi esibindini futhi singaba yingozi empilweni.

Uma unezinkinga zesibindi ezithambile, udokotela wakho angase asacabangela i-gemtuzumab kodwa uzokuqapha eduze kakhulu ngezivivinyo zegazi ezivamile. Kodwa-ke, uma unesifo sesibindi esiphakathi nendawo noma esibi, udokotela wakho cishe uzoncoma ukwelashwa okuhlukile okubeka ingozi encane esibindini sakho.

Ngaphambi kokuqala ukwelashwa, ithimba lakho lezempilo lizohlola ngokucophelela ukusebenza kwesibindi sakho ngezivivinyo zegazi futhi mhlawumbe nezifundo zokucabanga. Lokhu kubasiza ukuthi banqume ukuthi i-gemtuzumab iphephile yini kuwe futhi basungule izilinganiso zokuqala zokuqapha ngesikhathi sokwelashwa.

Ngingenzani uma ngamukela i-Gemtuzumab eningi ngengozi?

Ukweqisa kwe-gemtuzumab akunakwenzeka ngoba inikezwa ochwepheshe bezempilo abaqeqeshiwe ezindaweni ezilawulwayo. Kodwa-ke, uma usola ukuthi kunephutha elenzekile noma uhlangabezana nezimpawu ezinzima ngesikhathi noma ngemva kokwelashwa, yazisa ithimba lakho lezokwelapha ngokushesha.

Izimpawu zokweqisa umthamo okungenzeka zingabandakanya isicanucanu esibi, ukuhlanza, ukukhathala okukhulu, noma izimpawu ezingavamile ezibonakala zibi kakhulu kunokulindelekile. Ithimba lakho lokunakekelwa kwezempilo lizokuqapha ngokucophelela futhi linikeze ukunakekelwa okusekelayo ukuphatha noma yiziphi izinkinga.

Alikho ikhambi eliqondile le-gemtuzumab, ngakho ukwelashwa kugxila ekuphatheni izimpawu nasekusekeleni ukululama komzimba wakho. Lokhu kungabandakanya imithi yokulawula isicanucanu, uketshezi lwe-IV ukuvimbela ukushoda kwamanzi emzimbeni, nokuqapha ngokucophelela izibalo zakho zegazi.

Ngingenzani Uma Ngeqe Umthamo We-Gemtuzumab?

Njengoba i-gemtuzumab inikezwa esibhedlela noma esikhungweni sokwelapha ngokohlelo oluthile, ukuqeda umthamo ngokuvamile akuyona into eyenzeka ngengozi. Ithimba lakho lokunakekelwa kwezempilo lihlela ngokucophelela iseshini ngayinye yokwelapha njengengxenye yohlelo lwakho lokwelapha olujwayelekile.

Uma udinga ukuhlehlisa umthamo ohleliwe ngenxa yokugula, izibalo eziphansi zegazi, noma ezinye izinkinga zempilo, udokotela wakho uzoqoka indlela engcono kakhulu. Ngezinye izikhathi ukwelashwa kungahlehliswa izinsuku ezimbalwa noma amasonto kuze kube yilapho umzimba wakho usulungele ukuphatha imithi ngokuphepha.

Ungalokothi uzame ukwenza umthamo oqediwe ngokuphinda kabili olandelayo. Udokotela wakho uzolungisa uhlelo lwakho lokwelapha njengoba kudingeka ngenkathi egcina ukuphepha nokusebenza kahle kokwelashwa kwakho. Ukuxhumana nethimba lakho lokunakekelwa kwezempilo kuyisihluthulelo sokuphatha noma yiziphi izinguquko zohlelo.

Ngingayeka Nini Ukuthatha I-Gemtuzumab?

Ngokuvamile awu

Kwezinye izimo, ukwelashwa kungase kumiswe ngaphambi kwesikhathi uma uhlangabezana nemiphumela emibi kakhulu noma uma umdlavuza wakho ungasabeli njengoba bekulindelekile. Ithimba lakho lezempilo lizoqala njalo ukubeka phambili ukuphepha kwakho nenhlalakahle lapho lenza lezi zinqumo.

Ngingakhulelwa Ngesikhathi Ngithatha i-Gemtuzumab?

I-Gemtuzumab ingabangela ingozi enkulu kumntwana ongakazalwa, ngakho-ke ukukhulelwa kufanele kugwenywe ngesikhathi sokwelashwa kanye nezinyanga eziningana ngemva kwalokho. Bobabili abesilisa nabesifazane kufanele basebenzise izindlela zokuvimbela inzalo ezisebenzayo ngenkathi bethola lo muthi.

Uma ungumuntu wesifazane osemqoka wokuzala, udokotela wakho cishe uzodinga ukuhlolwa kokukhulelwa ngaphambi kokuqala ukwelashwa. Kufanele uqhubeke nokusebenzisa izindlela zokulawula ukuzala ezithembekile okungenani izinyanga eziyi-7 ngemuva komthamo wakho wokugcina we-gemtuzumab.

Abesilisa kufanele futhi basebenzise izindlela zokuvimbela inzalo ngesikhathi sokwelashwa kanye okungenani izinyanga eziyi-4 ngemuva komthamo wabo wokugcina, njengoba umuthi ungathinta isidoda futhi ulimaze umntwana osakhula. Uma uhlela ukuba nezingane esikhathini esizayo, xoxa ngezinketho zokulondoloza inzalo nodokotela wakho ngaphambi kokuqala ukwelashwa.