Yini i-Tisagenlecleucel: Ukusetshenziswa, Umthamo, Imiphumela Eceleni Nokunye

I-Tisagenlecleucel iyindlela yokwelapha umdlavuza eshintsha umhlaba esebenzisa amaseli akho omzimba ukulwa neminye imidlavuza yegazi. Le ndlela yokwelapha entsha, eyaziwa nangokuthi i-CAR-T cell therapy, ithatha ama-T-cells akho (uhlobo oluthile lweseli elimhlophe legazi), iwalungise e-laboratory ukuze akwazi ukubona kangcono futhi ahlasele amaseli omdlavuza, bese iwabuyisela emzimbeni wakho.

Lokhu kwelashwa kumelela intuthuko enkulu ekunakekelweni komdlavuza okwenziwe ngabantu ngabanye. Ngokungafani ne-chemotherapy yendabuko ethinta wonke amaseli ahlukanisa ngokushesha, i-tisagenlecleucel iqondisa ngqo amaseli omdlavuza ngenkathi ishiya amaseli anempilo engathinteki kakhulu.

Isetshenziselwani i-Tisagenlecleucel?

I-Tisagenlecleucel iphatha izinhlobo ezithile zemidlavuza yegazi lapho ezinye izindlela zokwelapha zingasebenzi noma lapho umdlavuza ubuyile. Udokotela wakho uvame ukucabangela le ndlela yokwelapha uma uzamile okungenani ezinye izindlela zokwelapha ezimbili ngaphandle kwempumelelo.

Umuthi uvunyelwe ukwelapha i-acute lymphoblastic leukemia (ALL) ezinganeni nakubantu abasha abaneminyaka engu-25. I-ALL ngumdlavuza okhula ngokushesha othinta amaseli amhlophe egazi, okwenza kube nzima ukuthi umzimba wakho ulwe nezifo futhi ulawule ukopha.

Isetshenziselwa futhi izinhlobo ezithile ze-large B-cell lymphoma kubantu abadala. Lokhu kuhlanganisa i-diffuse large B-cell lymphoma kanye nezinye izinhlobo ze-lymphomas ezihlobene eziphinde zabuya ngemva kokwelashwa noma ezingazange zisabele ekwelashweni kwangaphambilini.

Isebenza Kanjani i-Tisagenlecleucel?

Lokhu kwelashwa kusebenza ngokuguqula amasosha akho omzimba abe yiqembu elinamandla lokulwa nomdlavuza. Le nqubo iqala lapho odokotela beqoqa ama-T-cells akho ngenqubo efana nokunikela ngegazi.

E-laboratory, ososayensi balungisa la maseli ngokwengeza i-receptor ekhethekile ebizwa ngokuthi i-chimeric antigen receptor (CAR). Le receptor isebenza njengesistimu ye-GPS, isiza ama-T-cells akho ukuthi athole futhi abambelele kuphrotheni ethile etholakala kumaseli omdlavuza ebizwa ngokuthi i-CD19.

Uma amaseli aguquliwe efakwa emzimbeni wakho, ayanda futhi abe asebenza kahle kakhulu ekuqapheleni nasekubhujiseni amaseli omdlavuza. Cabanga ngakho njengokunika amasosha akho omzimba ukuqeqeshwa okukhethekile namathuluzi okulwa nomdlavuza ngempumelelo.

Lokhu kuthathwa njengendlela yokwelapha eqinile nesezingeni eliphezulu. Ngokungafani ne-chemotherapy evamile, i-tisagenlecleucel idala impendulo yamasosha omzimba ephilayo, eqhubekayo engaqhubeka isebenza emzimbeni wakho izinyanga noma iminyaka.

Kufanele Ngiyithathe Kanjani I-Tisagenlecleucel?

I-Tisagenlecleucel inikezwa njengokufakwa okukodwa kwe-intravenous esikhungweni sokwelapha esikhethekile. Awukwazi ukuthatha lo muthi ekhaya, futhi kudinga ukulungiswa nokuqashwa ngokucophelela yithimba lezokwelapha eliqeqeshiwe.

Ngaphambi kokuthola ukwelashwa, uzoqhubeka nenqubo ebizwa ngokuthi i-leukapheresis ukuze uqoqe amaseli akho e-T. Lokhu kuvamile ukuthatha amahora angu-3-6 futhi kuhilela ukudonsa igazi engalweni eyodwa, elicwengisiswe ngomshini ohlukanisa amaseli e-T, bese libuyiselwa kwenye ingalo yakho.

Ngenkathi amaseli akho elungiswa e-laboratory (okuthatha amasonto angu-3-4), ungase uthole i-chemotherapy yokuxhuma ukusiza ukulawula umdlavuza wakho. Ithimba lakho lezokwelapha lizohlinzeka ngemiyalelo ethile mayelana nokudla, ukuphuza, kanye nanoma yimiphi imithi okufanele igwenywe ngalesi sikhathi.

Ezinsukwini ezimbalwa ngaphambi kokufakwa, uzothola i-chemotherapy yokukhipha ama-lymphocyte ukulungisa umzimba wakho. Lokhu kusiza ukudala isikhala samaseli aguquliwe ukuthi akhule futhi asebenze ngempumelelo.

Ukufakwa kwangempela kwe-tisagenlecleucel kuthatha imizuzu engaba ngu-30-60. Uzoqashwa eduze esibhedlela okungenani izinsuku eziyi-10 ngemuva kokufakwa, ngoba yilapho imiphumela emibi engathi sína ingenzeka kakhulu.

Kufanele Ngiyithathe Isikhathi Esingakanani I-Tisagenlecleucel?

I-Tisagenlecleucel inikezwa njengokwelashwa okukodwa, hhayi umuthi oqhubekayo owuthatha ngokuphindaphindiwe. Uma amaseli aguquliwe efakwa emzimbeni wakho, aklanyelwe ukuqhubeka esebenza isikhathi eside.

Amaseli e-T aguquliwe angahlala esebenza emzimbeni wakho izinyanga noma iminyaka, enikeza ukuvikeleka okuqhubekayo emangqamuzaneni omdlavuza. Ezinye iziguli ziye zagcina ukuxolelwa iminyaka eminingi ngemuva kokuthola lokhu kwelashwa okukodwa.

Nokho, ithimba lakho lezokwelapha lizokuqapha ngokucophelela ngokuqokwa okulandelayo njalo kanye nokuhlolwa kwegazi. Lokhu kuhlolwa kusiza ukuqinisekisa ukuthi ukwelashwa kuyasebenza futhi kuqaphele noma yimaphi imiphumela emibi ebizelwe noma izimpawu zomdlavuza obuyayo.

Ziyini Imiphumela Eceleni ye-Tisagenlecleucel?

Ngenkathi i-tisagenlecleucel ingasebenza kahle kakhulu, ingabangela imiphumela emibi engathí sina edinga ukunakekelwa kwezokwelapha ngokushesha. Ukuqonda lokhu kukusiza wena nethimba lakho lezokwelapha ukuthi nisabele ngokushesha uma kwenzeka.

Imiphumela emibi evame kakhulu futhi engathí sina yenzeka ngoba amaseli akho omzimba aguquliwe aba matasa kakhulu ekulweni nomdlavuza. Lokhu ngezinye izikhathi kungabangela ukusabela komzimba okusebenzayo emzimbeni wakho wonke.

I-Cytokine release syndrome (CRS) iyona miphumela emibi ebaluleke kakhulu okufanele iqashelwe. Lokhu kwenzeka lapho amaseli akho e-T asebenzayo ekhipha izinto eziningi ezivuthayo ezibizwa ngokuthi ama-cytokine. Izimpawu zakuqala zihlanganisa:

• Umkhuhlane nokubanda
• Ukuphefumula kanzima noma ukuphefumula ngokushesha
• Ukushaya kwenhliziyo okusheshayo
• Isiyezi noma ukukhathala
• Ikhanda elibuhlungu nobuhlungu bemisipha
• Isicanucanu nokuhlanza

I-CRS ingahluka kusuka kokulula kuya ekuphiliseni impilo, yingakho uzoqashwa ngokucophelela esibhedlela. Ithimba lakho lezokwelapha linemithi ethile nokwelashwa ukuphatha lesi simo ngempumelelo.

Imiphumela emibi ye-Neurologic nayo ingenzeka, ithinte ubuchopho bakho kanye nohlelo lwakho lwezinzwa. Lokhu kungabandakanya:

• Ukudideka noma ubunzima bokugxila
• Ubunzima bokukhuluma noma ukuthola amagama
• Ukuthuthumela noma ukuzamazama
• Ukuhlaselwa (ezimweni ezingavamile)
• Ushintsho ekubhaleni ngesandla
• Ubunzima bokulala

Imiphumela eminingi ye-neurologic ingeyesikhashana futhi iyanyamalala emasontweni ambalwa, nakuba eminye ingase ithathe isikhathi eside ukunyamalala ngokuphelele.

Eminye imiphumela emibi ongase uyithole ihlanganisa:

• Ukwehla kwamaseli egazi, okwandisa ingozi yokutheleleka
• Ukukhathala nobuthakathaka
• Ukuncipha kwesifiso sokudla
• Ukuvuvukala ebusweni, ezandleni, noma ezinyaweni
• Umfutho wegazi ophansi
• Isigqi senhliziyo esingajwayelekile

Imiphumela yesikhathi eside ingahlanganisa amasosha omzimba abuthaka, okukwenza ube sengozini enkulu yokutheleleka. Udokotela wakho uzoxoxa ngamashejuli okugoma kanye namasu okuvimbela ukutheleleka nawe.

Izinkinga ezingavamile kodwa ezinzima zingahlanganisa ukutheleleka okukhulu, umdlavuza wesibili, noma ukwehla kwamaseli egazi isikhathi eside. Ithimba lakho lezokwelapha lizokuqapha ngokucophelela ngezinto ezingenzeka ngesikhathi sokunakekelwa kwakho okulandelayo.

Ubani Ongafanele Athathe i-Tisagenlecleucel?

I-Tisagenlecleucel ayifanele wonke umuntu, futhi ithimba lakho lezokwelapha lizohlola ngokucophelela ukuthi ungumuntu ofanelekayo yini kulokhu kwelashwa. Izici eziningana zingenza le therapy ingafaneleki noma ibe yingozi kakhulu.

Ngeke ukwazi ukufaneleka uma unokutheleleka okusebenzayo, okungalawulwa. Umzimba wakho udinga ukuba sesimweni esingcono kakhulu ukuze ukwazi ukubhekana nokusabela okukhulu komzimba okudalwa yi-tisagenlecleucel.

Izinkinga ezinzima zenhliziyo, yamaphaphu, yesibindi, noma yezinso zingakwenza ube yingozi enkulu kule nqubo yokwelapha. Imiphumela emibi ingafaka ingcindezi eyengeziwe kulezi zitho, ngakho zidinga ukusebenza kahle ngokwanele ukuze zikwazi ukubhekana nokwelashwa.

Uma unezimo ezithile ze-autoimmune, lokhu kwelashwa kungase kungafaneleki. I-therapy ingase iqhubekisele phambili izifo ze-autoimmune ngokwenza ngokuqhubekayo amasosha omzimba akho.

Ukuphendula okukhulu kwangaphambilini ekwelashweni okufanayo noma ezinye izinto ze-therapy kungase futhi kukukhiphe ekutholeni i-tisagenlecleucel.

Udktela wakho uzobheka nesimo sakho sempilo esiphelele, iminyaka yakho, nokuthi ungakwazi yini ukumelana nokuqapha okukhulu nemiphumela engemihle engaba khona. Isinqumo sihlanganisa ukulinganisa izinzuzo ezingaba khona nezingozi zesimo sakho esithile.

Igama Lomkhiqizo le-Tisagenlecleucel

I-Tisagenlecleucel ithengiswa ngaphansi kwegama lomkhiqizo elithi Kymriah. Leli gama lomkhiqizo lisetshenziswa emhlabeni wonke, okwenza kube lula ezigulini nakubahlinzeki bezempilo ukuthi bakhombe le therapy ethile yamaseli e-CAR-T.

I-Kymriah yenziwa yi-Novartis, inkampani yezemithi eyenza lokhu kwelashwa okusha. Uma uzwa elinye igama - i-tisagenlecleucel noma i-Kymriah - zombili zibhekisela emuthini ofanayo.

Ithimba lakho lezokwelapha cishe lizosebenzisa womabili la magama ngokushintshana, ngakho-ke ungadideki uma uzwa amagama ahlukene ebhekisela ekwelashweni kwakho.

Ezinye izindlela zokwelapha ze-Tisagenlecleucel

Ezinye izindlela eziningi zokwelapha ngamaseli e-CAR-T ziyatholakala, nakuba ngalinye liqondiswe ezinhlotsheni ezithile zomdlavuza kanye nabantu abathile. Lezi ezinye izindlela zokwelapha zisebenza ngendlela efana ne-tisagenlecleucel kodwa zingase zibe nokusetshenziswa okuhlukile kokugunyazwa noma amaphrofayili emiphumela engemihle.

I-Axicabtagene ciloleucel (Yescarta) enye i-CAR-T therapy egunyazwe ama-lymphoma athile kubantu abadala. Iphinde iqondiswe ku-CD19 kodwa icutshungulwa ngendlela ehlukile futhi ingase ifaneleke ezigulini ezihlukene.

I-Brexucabtagene autoleucel (Tecartus) igunyazwe izinhlobo ezithile ze-lymphoma kanye nomdlavuza wegazi. Le therapy iqondiswe kuphrotheni efanayo ye-CD19 kodwa inezinqubo ezihlukene zokukhiqiza.

I-Lisocabtagene maraleucel (Breyanzi) enye inketho yama-lymphoma athile, eyenzelwe ukuthi ibangele imiphumela engemihle embalwa engathí sina ngenkathi igcina ukusebenza kahle.

Izinketho zokwelapha zendabuko zingase zicatshangelwe ngokuya ngesimo sakho esithile. Lokhu kuhlanganisa i-chemotherapy yendabuko, i-radiation therapy, noma ukufakelwa kwamaseli e-stem.

Udokotela wakho we-oncologist uzosiza ekunqumeni ukuthi iyiphi inketho engcono kakhulu yohlobo lwakho oluthile lomdlavuza, impilo yonke, nomlando wokwelashwa.

Ingabe i-Tisagenlecleucel Ingcono Kunezinye Izindlela Zokwelapha ze-CAR-T?

Ukuqhathanisa izindlela zokwelapha ze-CAR-T akulula ngoba ngayinye ihlolwe ezigulini ezingafani kanye nezinhlobo zomdlavuza. Okubaluleke kakhulu ukuthola ukwelashwa okulungile esimweni sakho esithile.

I-Tisagenlecleucel ikhombise imiphumela emihle kakhulu ezinganeni nakubantu abadala abasebancane abane-ALL, neziguli eziningi ezifinyelela ekuthethelelweni okuphelele. Idatha yokulandelela isikhathi eside iyaqhubeka nokukhombisa imiphumela ethembisayo yalaba bantu.

Nge-lymphomas yabantu abadala, izindlela zokwelapha ze-CAR-T ezingafani zingase zifaneleke kakhulu kuye ngohlobo oluthile lwe-lymphoma kanye nomlando wakho wezokwelapha. Ezinye izindlela zokwelapha zingase zibe namaphrofayili ahlukile emiphumeleni noma imigqa yesikhathi yokukhiqiza.

Ukukhetha

Uma unezinkinga ezincane zenhliziyo, ungase usafaneleke ngokuqapha okuseduze. Kodwa-ke, ukuhluleka kwenhliziyo okukhulu noma ukuhlaselwa yinhliziyo kwakamuva kuvamile ukwenza lokhu kwelashwa kube yingozi kakhulu.

Kufanele Ngenzeni Uma Ngithola Ngengozi I-Tisagenlecleucel Eningi Kakhulu?

Ukweqisa kwe-Tisagenlecleucel akunakwenzeka ngomqondo wendabuko ngoba kunikezwa njengomthamo owodwa, obalwe ngokucophelela ochwepheshe bezokwelapha abaqeqeshiwe. Inani olitholayo linqunywa ngokuqondile ngokusekelwe esisindweni somzimba wakho kanye nenani lamaseli.

Uma ukhathazekile ngokwelashwa kwakho noma uhlangabezana nezimpawu ezingalindelekile, xhumana nethimba lakho lezokwelapha ngokushesha. Bangahlola ukuthi ngabe izimpawu zakho zihlobene yini nemiphumela ejwayelekile yokwelashwa noma okuthile okudinga ukungenelela.

Ithimba lezokwelapha lilandela izinqubo eziqinile ukuqinisekisa ukuthi uthola umthamo olungile, okwenza amaphutha okulinganisa angavamile kakhulu.

Kufanele Ngenzeni Uma Ngiphuthelwa Umthamo We-Tisagenlecleucel?

Njengoba i-tisagenlecleucel inikezwa njengokufakwa okukodwa, awukwazi ngempela ukuphuthelwa umthamo njengoba ungakwenza ngemithi yansuku zonke. Kodwa-ke, uma ukufakwa kwakho okuhleliwe kuphuzile noma kuhlehlisiwe, hlala uxhumana eduze nethimba lakho lezokwelapha.

Ukulibaziseka kokwelashwa kungenzeka ngezizathu ezahlukahlukene, njengezinkinga zokukhiqiza, ukutheleleka, noma izinguquko esimweni sakho sempilo. Ithimba lakho lezokwelapha lizosebenza ukuhlela kabusha ukwelashwa kwakho ngokushesha nje lapho kuphephile ukuqhubeka.

Ngesikhathi sokulibaziseka, ungase uthole ukwelashwa okuxhumanisayo ukusiza ukulawula umdlavuza wakho kuze kube yilapho ukufakwa kwe-tisagenlecleucel kunganikezwa.

Ngingayeka Nini Ukuthatha I-Tisagenlecleucel?

Awuyeki ukuthatha i-tisagenlecleucel ngoba ukwelashwa okukodwa, hhayi umuthi oqhubekayo. Uma amaseli e-T aguquliwe efakwe emzimbeni wakho, aqhubeka esebenza ngokwawo.

Imiphumela ingahlala izinyanga noma iminyaka, futhi ezinye iziguli zigcina ukuxolelwa isikhathi eside ngemva kokwelashwa okukodwa. Ithimba lakho lezokwelapha lizokuqapha njalo ukuze lilandelele ukuthi ukwelashwa kusebenza kahle kangakanani.

Uma umdlavuza wakho ubuyela noma ukwelashwa kungasebenzi njengoba bekulindelekile, udokotela wakho uzoxoxa ezinye izinketho zokwelashwa nawe.

Ngingakwazi Ukuthola Imigomo Ngemva Kokwelashwa Nge-Tisagenlecleucel?

Uhlelo lwakho lokugoma luzodingeka luphathwe ngokucophelela ngemva kokwelashwa nge-tisagenlecleucel. Ukwelashwa kungathinta ikhono lomzimba wakho lokuzivikela ekuphenduleni imigomo nokulwa nezifo.

Imigomo ephilayo ngokuvamile iyagwenywa ngemva kokwelashwa kwe-CAR-T ngoba amasosha akho omzimba angase abe buthakathaka. Ithimba lakho lezokwelapha lizohlinzeka ngemihlahlandlela ethile mayelana nokuthi yimiphi imigomo ephephile nokuthi kufanele uyithole nini.

Odokotela abaningi batusa ukulinda okungenani izinyanga eziningana ngemva kokwelashwa ngaphambi kokuthola imigomo ethile, futhi abanye bangase badinge ukuhlola ukusebenza komzimba wakho kuqala. Hlala uxhumana nethimba lakho lezokwelapha ngaphambi kokuthola noma yimuphi umgomo.