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

I-Eteplirsen iyimithi ekhethekile eyenzelwe ukusiza izingane kanye nabantu abadala abanezinhlobo ezithile ze-muscular dystrophy ebizwa nge-Duchenne muscular dystrophy (DMD). Le mithi isebenza ngokusiza amaseli emisipha akhiqize inguqulo eguquliwe yeprotheni ebizwa nge-dystrophin, ebalulekile ekusebenzeni kwemisipha. Nakuba ingayelaphi i-DMD, i-eteplirsen ingasiza ekunciphiseni ubuthakathaka bemisipha kubantu abanezinguquko ezithile zofuzo ezibangela lesi simo.

Yini i-Eteplirsen?

I-Eteplirsen iyimithi ye-antisense oligonucleotide eqondise imbangela yofuzo ye-Duchenne muscular dystrophy. Inikezwa nge-intravenous (IV) infusion ngokuqondile egazini lakho. Le mithi yenzelwe ngokuqondile abantu abane-DMD yabo ebangelwa izinguquko ezingazuza ku- "exon 51 skipping" - inqubo esiza amaseli ukuthi enze inguqulo emfushane kodwa esebenzayo yeprotheni ye-dystrophin.

Le mithi ingeyodwa ekilasini elisha lezokwelapha elibizwa ngokuthi ama-gene-targeted therapies. Ngokungafani nemithi yendabuko ephatha izimpawu nje, i-eteplirsen isebenza ezingeni lofuzo ukusiza umzimba wakho ukuthi ukhiqize amaprotheni ngokuvamile angeke akwazi ukuwakhiqiza kahle. Le mithi yagunyazwa yi-FDA ngo-2016 ngokuqondile ezigulini ze-DMD ezinoguquko lofuzo olusabela kulolu hlobo lokwelashwa.

Yini i-Eteplirsen Esetshenziselwa Yona?

I-Eteplirsen isetshenziselwa ukwelapha i-Duchenne muscular dystrophy ezigulini ezinoguquko lofuzo ezingazuza ku-exon 51 skipping. I-DMD yisifo esiqhubekayo sokuncipha kwemisipha esithinta ikakhulukazi abafana kanye nentsha, okubangela ubuthakathaka obanciphayo nokulahlekelwa ukusebenza kwemisipha ngokuhamba kwesikhathi.

Umuthi uvunyelwe ngokuqondile kubantu abahlolwa ngofuzo lwabo olukhombisa ukuthi banezinguquko ezenza cishe u-13% wazo zonke izimo ze-DMD. Udokotela wakho uzodinga ukuqinisekisa ngokuhlolwa ngofuzo ukuthi uhlobo lwakho oluthile lokuguqulwa kwe-DMD lungazuza kulokhu kwelashwa. Akubona bonke abantu abane-DMD abazoba ngabazongenela i-eteplirsen - isebenza kuphela ezinhlotsheni ezithile zofuzo zalesi simo.

Lokhu kwelashwa kuhlose ukunciphisa ukuqhubeka kobuthakathaka bemisipha nokusiza ukugcina ukusebenza kwemisipha isikhathi eside ngangokunokwenzeka. Nakuba kungelaphi, kungasiza abantu abane-DMD ukuthi bagcine ikhono labo lokuhamba nokwenza imisebenzi yansuku zonke isikhathi eside kunalokho abangase bakwenze ngaphandle kokwelashwa.

Isebenza Kanjani I-Eteplirsen?

I-Eteplirsen isebenza ngokusiza amaseli emisipha yakho ukuthi "eqe" isigaba esinenkinga sekhodi yofuzo esivimbela ukuthi angakhiqizi amaprotheni e-dystrophin. Cabanga ngakho njengokuhlela umusho ngokususa igama elingafanele - umusho osele usenza umqondo futhi ungaqondakala.

Kubantu abane-DMD, izinguquko zofuzo ziphazamisa imiyalelo yokwenza i-dystrophin, iprotheni esiza ukugcina imicu yemisipha iqina futhi ingashintshi. I-Eteplirsen ibopha ezintweni zofuzo emangqamuzaneni emisipha futhi ibasiza ukuthi bangayinaki le ngxenye enezinkinga, okubavumela ukuthi bakhiqize inguqulo emfushane kodwa esebenzayo ye-dystrophin. Leli phrotheni elishintshiwe alinamandla njenge-dystrophin ejwayelekile, kodwa lingasiza ekuvikeleni imicu yemisipha ekulimaleni.

Umuthi ubhekwa njengenketho yokwelapha enamandla aphakathi nendawo. Awunamandla ngokushesha njengeminye imithi ethile, kodwa ubhekana nembangela yofuzo yesimo esikhundleni sokumane ulawule izimpawu. Imiphumela yakha kancane kancane ngokuhamba kwesikhathi njengoba amaseli emisipha yakho eqala ukukhiqiza okwengeziwe kwephrotheni ye-dystrophin eshintshiwe.

Kufanele Ngiyithathe Kanjani I-Eteplirsen?

I-Eteplirsen inikezwa njengokumnika ngomthambo endaweni yokunakekelwa kwezempilo, ngokuvamile esibhedlela noma emtholampilo okhethekile. Uzothola umuthi ngeshubhu elincane elifakwe emthanjeni, ngokuvamile engalweni yakho. Ukumnika kuthatha imizuzu engaba ngu-35 kuya ku-60 ukuze kuqedwe, futhi kuzodingeka ukuthi ukuthole kanye ngesonto.

Ngaphambi kokumnika ngamunye, akudingeki ukuthi wenze izinguquko ezikhethekile ekudleni noma uthathe umuthi nokudla ngoba uqondiswe ngqo egazini lakho. Kodwa-ke, kubalulekile ukuhlala unamanzi ngokwanele ngokuphuza amanzi amaningi ngaphambi nangemva kokwelashwa kwakho. Ithimba lakho lezempilo lizokuqapha ngesikhathi sokumnika ukuze liqinisekise ukuthi uyawuthola kahle umuthi.

Kuzodingeka ukuthi uhlele ishejuli yakho ngalezi zikhathi zokuhlangana zamasonto onke, ngoba ukuqina kubalulekile ukuze umuthi usebenze ngempumelelo. Ithimba lakho lezempilo lizosebenza nawe ukuthola isikhathi esivamile esihambisana nomsebenzi wakho. Abanye abantu bakuthola kuwusizo ukuhlela ukumnika kwabo ngosuku olufanayo njalo ngesonto ukuze basungule umkhuba.

Kufanele Ngithathe Isikhathi Esingakanani I-Eteplirsen?

I-Eteplirsen ngokuvamile iyindlela yokwelapha yesikhathi eside okungenzeka ukuthi uzoqhubeka nayo iminyaka, mhlawumbe unomphela. Ngenxa yokuthi i-DMD yisimo esiqhubekayo, ukuyeka umuthi kungavumela ubuthakathaka bemisipha ukuthi buqhubeke ngokushesha futhi.

Udokotela wakho uzoqapha ukusabela kwakho emuthini ngokuhlolwa okuvamile, okuhlanganisa nokuhlolwa kokulinganisa ukusebenza kwemisipha namandla. Bazohlola ukuthi ngabe ukwelashwa kuyasiza yini ukunciphisa ukonakala kwemisipha nokugcina izinga lempilo yakho. Abanye abantu bangase babone izinzuzo ezinyangeni zokuqala, kanti abanye bangase badinge ukuqhubeka nokwelashwa izinyanga eziyisithupha noma ngaphezulu ngaphambi kokubona ngcono.

Isinqumo sokuthi ukuqhubeka kanjani nokwelashwa kuncike ezintweni eziningana, okuhlanganisa ukuthi usabela kahle kangakanani emuthini, ukuthi ngabe uhlangabezana nemiphumela emibi ekhathazayo, kanye nesimo sakho sempilo esiphelele. Ithimba lakho lezokwelapha lizobuyekeza njalo inqubekela phambili yakho futhi lixoxe ngokuthi ngabe ukuqhubeka nokwelashwa kuseyona yini inketho engcono kakhulu kuwe.

Yini Imiphumela Eceleni Ye-Eteplirsen?

Njengayo yonke imithi, i-eteplirsen ingabangela imiphumela emibi, nakuba kungewona wonke umuntu oyitholayo. Imiphumela eminingi emibi imild kuya kokulingene futhi ilawuleka ngokunakekelwa okufanele kwezokwelapha.

Imiphumela emibi evame kakhulu ongase uyithole ihlanganisa izinkinga zokulinganisela, ukuhlanza, nokusabela endaweni yokufakwa lapho kufakwa khona i-IV. Abanye abantu futhi babika ukuzizwa bekhathele noma behlangabezana nokucasuka kwesikhumba okuncane. Le miphumela ivame ukuthuthuka njengoba umzimba wakho ujwayela umuthi emasontweni ambalwa okuqala okwelashwa.

Nansi imiphumela emibi eyenzeka kaningi, ukhumbula ukuthi abantu abaningi bawuthola kahle umuthi:

• Izinkinga zokulinganisela noma ukuzizwa ungazinzile
• Isicanucanu noma ukuhlanza
• Ububomvu, ukuvuvukala, noma ubuhlungu endaweni ye-IV
• Ukukhathala noma ukuzizwa ukhathele kunokujwayelekile
• Ikhanda
• Umkhuhlane noma ukuzizwa unomkhuhlane
• Ukukhwehlela noma ukucasuka komphimbo

Iningi lale miphumela emibi yisikhashana futhi ilawuleka. Ithimba lakho lezempilo linganikeza amasu okusiza ukunciphisa ukungakhululeki, njengokuthatha ukufakwa kancane noma ukusebenzisa imithi ukuvimbela isicanucanu.

Nakuba kungavamile, abanye abantu bangase babe nemiphumela emibi engathi sína edinga ukunakekelwa kwezokwelapha ngokushesha. Lezi zimo ezingathi sína azivamile kodwa kubalulekile ukuziqaphela:

• Ukusabela okukhulu komzimba okubangela ubunzima bokuphefumula noma ukuvuvukala ebusweni, ezindebeni, noma emqaleni
• Izinkinga ezinkulu zezinso, ezingase zivele njengoshintsho ekuchameni noma ukuvuvukala emilenzeni yakho
• Ukusabela okukhulu kokufakwa kwemithi okubangela ubuhlungu besifuba, ukushaya kwenhliziyo okusheshayo, noma isiyezi esikhulu
• Izimpawu zokutheleleka njengomkhuhlane oqhubekayo, amakhaza, noma ubuthakathaka obungavamile

Uma uhlangabezana nanoma yiziphi zalezi zimpawu ezinzima, xhumana nodokotela wakho ngokushesha noma funa ukunakekelwa kwezempilo eziphuthumayo. Ithimba lakho lezempilo lizokuqapha ngokucophelela, ikakhulukazi ngesikhathi sokufakwa kwakho kokuqala, ukuze libheke noma yikuphi ukusabela okukhathazayo.

Ubani Ongafanele Athole i-Eteplirsen?

I-Eteplirsen ayifanele wonke umuntu, ngisho naphakathi kwabantu abane-Duchenne muscular dystrophy. Into ebaluleke kakhulu ukuthi ngabe ukuguqulwa kwakho okuthile kofuzo kungazuza ekweqeni i-exon 51 - ukuhlolwa kofuzo kuzonquma lokhu.

Abantu abake baba nokusabela okukhulu komzimba ku-eteplirsen noma kunoma iyiphi yezingxenye zayo akufanele bathole lo muthi. Ngaphezu kwalokho, uma unezinkinga ezinkulu zezinso, udokotela wakho angase adinge ukulungisa uhlelo lwakho lokwelashwa noma acabangele ezinye izindlela, njengoba umuthi ungase uthinte ukusebenza kwezinso.

Nazi izimo eziyinhloko lapho i-eteplirsen ingase inganconywa khona, nakuba icala ngalinye lifuna ukuhlolwa kwezempilo komuntu ngamunye:

• I-DMD ebangelwa ukuguqulwa kofuzo okungaphenduli ekweqeni i-exon 51
• Ukusabela okukhulu komzimba kwangaphambili ku-eteplirsen
• Isifo esibi sezinso noma ukwehluleka kwezinso
• Ukutheleleka okusebenzayo, okungalawuleki
• Izimo ezithile zenhliziyo ezingase zikwenze ukufakwa kwe-IV kube yingozi

Udokotela wakho uzoqapha ngokucophelela umlando wakho wezempilo kanye nesimo sakho sempilo yamanje ngaphambi kokuncoma i-eteplirsen. Bangase futhi bafune ukuxhumana nezinye izazi, njengama-cardiologists noma izazi zezinso, ukuze baqinisekise ukuthi ukwelashwa kuphephile esimweni sakho esithile.

Igama Lomkhiqizo le-Eteplirsen

I-Eteplirsen ithengiswa ngaphansi kwegama lomkhiqizo elithi Exondys 51 e-United States. Leli yigama lomkhiqizo elilodwa elitholakala njengamanje ngalo mithi, njengoba ikhiqizwa yinkampani eyodwa yezemithi.

Uma wamukela ukwelashwa kwakho noma ukuxoxa ngakho nabanakekeli bezempilo, ungase ukuzwe kubhekiselwa kulo nganoma yiliphi igama - i-eteplirsen noma i-Exondys 51. Womabili la magama abhekisela emuthini ofanayo. Igama lomkhiqizo elithi Exondys 51 libonisa indlela yokusebenza yomuthi, njengoba isebenza ngokweqa i-exon 51 ekhodi yofuzo.

Ezinye izindlela zokwelapha i-Eteplirsen

Eminye imithi eminingi iyatholakala yokwelapha i-Duchenne muscular dystrophy, nakuba ngamunye esebenza ngendlela ehlukile futhi eqondise izici ezihlukene zesimo. Enye indlela engcono kuncike ekuguqukeni kwakho kofuzo kanye nezimo zakho zempilo.

Ama-corticosteroids afana ne-prednisone kanye ne-deflazacort yizindlela zokwelapha ezisetshenziswa kakhulu ezingasiza ekunciphiseni ukuqhubeka kobuthakathaka bemisipha. Le mithi isebenza ngokunciphisa ukuvuvukala emisipheni kunokuthi iqondise imbangela yofuzo njengoba i-eteplirsen yenza. Nakuba isebenza, ingaba nemiphumela emibi ebaluleke kakhulu ekusetshenzisweni kwesikhathi eside, okuhlanganisa ukukhuluphala nokuba buthakathaka kwamathambo.

Eminye imithi ye-antisense oligonucleotide iyatholakala ngezinhlobo ezihlukene zofuzo ze-DMD. I-Golodirsen iqondise ukweqa i-exon 53, kuyilapho i-casimersen isebenza ku-exon 45 skipping. Lezi zisebenza ngendlela efanayo ne-eteplirsen kodwa zenzelwe abantu abanezinguquko ezihlukene zofuzo. Izindlela zokwelapha ngofuzo nazo ziyathuthukiswa, nakuba eziningi zisesivivinyweni somtholampilo.

Ingabe i-Eteplirsen ingcono kune-Deflazacort?

I-Eteplirsen kanye ne-deflazacort zisebenza ngezindlela eziphelele ezihlukene, ngakho ukuqhathanisa ngokuqondile akulula. Yomibili le mithi ingaba yigugu ekwelapheni i-DMD, futhi abanye abantu bangazuza ekusebenziseni zombili ndawonye ngaphansi kokugadwa kwezokwelapha okucophelelayo.

I-Eteplirsen iqondise imbangela yezofuzo ye-DMD ngokusiza amaseli ukuthi akhiqize amaprotheni e-dystrophin, kanti i-deflazacort iyi-corticosteroid enciphisa ukuvuvukala kwemisipha futhi ingasiza ekulondolozeni ukusebenza kwemisipha. I-Deflazacort isetshenziswe isikhathi eside futhi inemininingwane ebanzi yocwaningo ekhombisa imiphumela yayo emandleni emisipha nokusebenza.

Ukukhetha phakathi kwale mithi kuncike ezintweni eziningana, okuhlanganisa ukuguqulwa kwakho okuthile kwezofuzo, izimpawu zamanje, ubudala, nokubekezelelana nezinhlobo ezahlukene zemiphumela emibi. I-Eteplirsen isebenza kuphela kubantu abanezinguquko ezithile zofuzo, kanti i-deflazacort ingasiza noma ubani one-DMD kungakhathaliseki uhlobo lwabo lwezofuzo. Udokotela wakho uzocabangela isimo sakho ngasinye ukuze anqume ukuthi iyiphi indlela yokwelapha efaneleka kakhulu kuwe.

Imibuzo Evame Ukubuzwa Mayelana ne-Eteplirsen

Ingabe i-Eteplirsen iphephile Kubantu Abanezinkinga Zenhliziyo?

I-Eteplirsen ngokuvamile ingasetshenziswa ngokuphepha kubantu abanezinkinga zenhliziyo, kodwa idinga ukuqapha okucophelelayo nokuxhumana nodokotela wakho wenhliziyo. Njengoba abantu abaningi abane-DMD beba buthakathaka emisipha yenhliziyo ngokuhamba kwesikhathi, lokhu kuyinto ebalulekile okufanele iqembu lakho lezokwelapha liyihlolisise.

Umuthi ngokwawo awuthinti ngokuqondile ukusebenza kwenhliziyo, kodwa inqubo ye-IV infusion kanye noketshezi olunikezwa ngesikhathi sokwelashwa kudingeka ziphathwe ngokucophelela uma unezinkinga zenhliziyo. Udokotela wakho angase ancome amazinga e-infusion anciphe kancane noma ukuqapha okwengeziwe ngesikhathi sokwelashwa. Bangase futhi bafune ukuhlola ukusebenza kwenhliziyo yakho kaningi ngenkathi uthola i-eteplirsen.

Ngingenzani Uma Ngingaliphuthelwa Ngengozi Umthamo We-Eteplirsen?

Uma uphuthelwa yi-infusion ye-eteplirsen ehleliwe, xhumana nomhlinzeki wakho wezempilo ngokushesha ngangokunokwenzeka ukuze uhlele kabusha. Njengoba umuthi unikezwa masonto onke, ukuphuthelwa umthamo ngeke kubangele izinkinga ngokushesha, kodwa ukuqina kubalulekile ekugcineni izinzuzo zomuthi.

Zama ukuthola umthamo owuphuthelwe ngokushesha ngangokunokwenzeka, bese ubuyela esimisweni sakho samasonto onke esivamile. Ungazami ukulungisa umthamo owuphuthelwe ngokuthola imithi eyengeziwe - qhubeka nje nesimiso sakho esijwayelekile sokulinganisa. Ithimba lakho lokunakekelwa kwezempilo lingakusiza ukuthi uthuthukise amasu okukhumbula ama-aphoyintimenti nokuphatha isimiso sakho sokwelashwa ngempumelelo.

Ngingenzani Uma Nginokuphendula Ngesikhathi Sokufakwa?

Uma uhlangabezana nanoma yiziphi izimpawu ezingakhululekile ngesikhathi sokufakwa kwakho kwe-eteplirsen, tshela ithimba lakho lokunakekelwa kwezempilo ngokushesha. Baqeqeshwe ukubona nokuphatha ukusabela kokufakwa futhi bangashintsha ukwelashwa kwakho njengoba kudingeka ukuze bakugcine ukhululekile futhi uphephile.

Ukusabela okuvamile njengokucasuka, ikhanda elibuhlungu, noma ukuzizwa unomkhuhlane kuvame ukuphathwa ngokunciphisa izinga lokufakwa noma ukuhlinzeka ngemithi yokunciphisa izimpawu. Ukuze uthole ukusabela okukhulu njengobunzima bokuphefumula, ubuhlungu besifuba, noma isiyezi esikhulu, ithimba lakho lokunakekelwa kwezempilo lizoyeka ukufakwa futhi linikeze ukunakekelwa okufanele kwezokwelapha. Ukusabela okuningi kokufakwa kulawuleka, futhi abantu abaningi bangaqhubeka nokwelashwa ngokulungiswa kweprothokholi yabo yokufakwa.

Ngingayeka nini ukuthatha i-Eteplirsen?

Isinqumo sokuyeka i-eteplirsen kufanele senziwe ngaso sonke isikhathi ngokubonisana nethimba lakho lokunakekelwa kwezempilo, njengoba lo muthi unikeza izinzuzo eziqhubekayo ezingalahleka uma ukwelashwa kuyekwa. Njengoba i-DMD iyisimo esiqhubekayo, ukuyeka ukwelashwa kungavumela ubuthakathaka bemisipha ukuthi buqhubeke ngokushesha futhi.

Udokotela wakho uzohlola njalo ukuthi ngabe umuthi usahlinzeka ngezinzuzo nokuthi ngabe imiphumela emibi isalawuleka yini. Bangase batusa ukuyeka uma uhlangabezana nemiphumela emibi engathi sína edlula izinzuzo, uma isimo sakho siqhubeke saya endaweni lapho umuthi ungasasizi khona, noma uma ukwelashwa okusha, okuphumelelayo kutholakala. Ungalokothi uyeke ukuthatha i-eteplirsen wedwa ngaphandle kokuxoxa ngayo nethimba lakho lezokwelapha kuqala.

Ngingahamba yini ngisathatha i-Eteplirsen?

Yebo, ungahamba ngenkathi uthatha i-eteplirsen, kodwa kudinga ukuhlela okuthile ngoba udinga ukufakwa ngemithambo yegazi masonto onke. Ohambweni olufushane, ungahle ukwazi ukuhlela ukufakwa kwakho ngaphambi kokuhamba noma ngemva kokubuya, ngokuvunywa udokotela wakho.

Ohambweni olude, uzodinga ukuhlela ukwelashwa endaweni yezokwelapha efanelekayo endaweni oya kuyo. Ithimba lakho lezempilo lingasiza ekuxhumaniseni nezinye izikhungo zokwelapha futhi linikeze amarekhodi ezokwelapha kanye nemiyalelo edingekayo. Eminye imitholampilo ekhethekile ye-DMD inamanethiwekhi angasiza ekwelashweni ngenkathi uhamba. Kubalulekile ukuhlela kusengaphambili futhi uxoxe ngezinhlelo zokuhamba nethimba lakho lezokwelapha ngaphambi kohambo lwakho.