PT-141 tabyog ib qho khoom siv peptide-raws li tshuaj. Thaum xub thawj tsim los ua tus neeg sawv cev ntawm daim tawv nqaij tanning, tom qab ntawd tau siv los kho kev sib deev tsis zoo vim nws cov teebmeem tshwj xeeb ntawm lub hauv nruab nrab lub paj hlwb. Tsis zoo li cov tshuaj ib txwm siv rau kev kho mob erectile kawg (xws li PDE5 inhibitors) uas feem ntau ua rau cov hlab ntsha peripheral, PT-141 activates melanocortin receptors nyob rau hauv lub hlwb thiab ncaj qha tswj cov neural txoj kev cuam tshuam nrog kev sib deev arousal. Yog li ntawd, nws yog hu ua "kev ntshaw tshuaj". Cov tshuaj no tau pom zoo raws li kev txhaj tshuaj subcutaneous (lub npe lag luam Vyleesi) rau kev kho mob ntawm kev sib deev muaj siab nyob rau hauv cov poj niam premenopausal. "PT-141 ntsiav tshuaj" muaj nyob rau hauv kev ua lag luam feem ntau yog xa mus rau kev sim cov qauv tsim los rau kev tswj hwm qhov ncauj lossis sublingual, tab sis lawv lub qhov ncauj bioavailability tsawg heev, thiab lawv cov txiaj ntsig tau qis dua qhov kev txhaj tshuaj. Tsis tas li ntawd, lawv tsis tau raug pom zoo los ntawm lub koom haum tswj xyuas tshuaj, thiab lawv txoj kev nyab xeeb thiab kev ua tau zoo tsis tuaj yeem lav. Kev siv cov khoom uas tsis muaj kev tswj hwm zoo li no yuav ua rau muaj kev phom sij rau kev noj qab haus huv. Cov khoom zoo li no yuav tsum tau siv raws li kev qhia ntawm tus kws kho mob nrog cov ntawv pom zoo tsis tu ncua.
Peb Cov Khoom Muag Khoom
|
|
|
|
|
|
|
|
PT-141 COA
Kev tsim cov ntsiav tshuaj
PIB-141ntsiav tshuajyog ib tug melanocortin receptor (MC4R) agonist thiab tau pom tus nqi tshwj xeeb hauv kev kho kev sib deev tsis zoo. Kev tsim tawm ntawm nws daim ntawv ntsiav tshuaj suav nrog kev sib xyaw tshuaj lom neeg, kev ua kom zoo ntawm cov txheej txheem tsim, thiab kev tswj xyuas nruj. Cov kev ntsuam xyuas hauv qab no yog ua los ntawm plaub qhov loj: cov kauj ruam tseem ceeb ntawm kev sib txuas, cov txheej txheem tsim qauv, kev tswj kev ruaj ntseg, thiab cov teeb meem kev lag luam.
Core Synthesis Cov Kauj Ruam: Kev Sib Tw Hauv Cov Phaj Ntiv Nplhaib Condensation Technology
Cov qauv molecular ntawm PT-141 yog cyclic heptapeptide. Nws cov synthesis siv cov khoom theem nplhaib condensation technology. Cov -amino pawg ntawm cov amino acid tiv thaiv los ntawm 9-fluorene methoxycarbonyl (Fmoc), thiab peptide bonds yog tsim los ntawm HBTU / HOBT / NMM system. Cov txheej txheem tshwj xeeb suav nrog:
Resin Pretreatment:CTC resin raug xaiv ua cov khoom siv -theem nqa khoom. Tom qab o nrog dichloromethane (DCM), nws tau ua ke nrog Fmoc-Lys(Boc)-OH nyob rau hauv lub catalysis ntawm N,N-dipropylamine (DIEA) los tsim thawj resin-amino acid complex.
Stepwise Condensation:Cov pab pawg tiv thaiv Fmoc tau raug tshem tawm tas mus li, thiab Fmoc-Trp(Boc)-OH, Fmoc-Arg(pbf)-OH, Fmoc-D-Ph-OH, Fmoc-His(8}O) Fmoc-Asp(OtBu)-OH, thiab Fmoc-Nle-OH tau pib ua tiav. Tom qab txhua kauj ruam cov tshuaj tiv thaiv, qhov ua tiav condensation tau lees paub los ntawm kev kuaj xyuas indophenol.
Cringing thiab cleavage:Tom qab cov kab peptide saw synthesis tiav lawm, N-terminal Fmoc tiv thaiv pab pawg raug tshem tawm, thiab acetylation reagent tau ntxiv los kaw qhov kawg. Tom qab ntawd, cov saw peptide raug tshem tawm los ntawm cov resin nyob rau hauv trifluoroacetic acid (TFA) cleavage tov, thiab sab saw tiv thaiv pawg raug tshem tawm ib txhij kom tau cov khoom crude ntawm cyclic heptapeptide.
Purification thiab Kev Qhia:Cov khoom siv roj av tau ua kom huv huv los ntawm siab -siab npaj ua kua chromatography (HPLC), nrog rau cov txiaj ntsig txog li 58% thiab purity ntau dua 98%. Mass spectrometry tsom xam tau lees paub tias qhov hnyav molecular yog raws li lub hom phiaj qauv.
Cov txheej txheem no ua kom yooj yim rau cov kauj ruam sib cais nruab nrab los ntawm cov khoom siv-theem ntiv nplhaib condensation thev naus laus zis, txo cov nqi sib xyaw ua ke, thiab zam cov chromatographic sib cais hauv cov kua-theem synthesis, ua rau nws tsim nyog rau kev tsim khoom.
Formulation Process Design: Xaiv cov Excipients thiab Process Optimization
Cov txheej txheem tsim rau PT-141 ntsiav tshuaj yuav tsum tau coj mus rau hauv tus account qhov ruaj khov ntawm cov tshuaj, nws tus cwj pwm kev sib cais, thiab kev ua raws li tus neeg mob. Cov ntsiab lus tseem ceeb tsim muaj xws li:
Kev xaiv cov khoom xyaw
Fillers: Sib tov microcrystalline cellulose (MCC) thiab lactose nyob rau hauv ib qho piv txwv los kho cov porosity ntawm cov ntsiav tshuaj thiab tswj qhov kev sib cais.
Disintegrants: Siv ntoo khaub lig-txuas carboxymethyl cellulose sodium (CCNa) lossis qis- hloov hydroxypropyl cellulose (L-HPC) kom ntseeg tau tias cov ntsiav tshuaj tawg sai sai hauv plab hnyuv.
Lubricants: Tus nqi ntawm stearic acid magnesium yog tswj ntawm 0.5% - 1%, zam kev siv ntau dhau uas yuav ua rau ncua kev tawg.
Stabilizers: Vim yog cov av rhiab heev ntawm PT-141, ntxiv calcium hydrogen phosphate ua desiccant kom txo tau cov dej noo thiab degradation.
Txheej txheem optimization
Kev ntub dej granulation: Siv 50% ethanol ua tus neeg sawv cev ntub dej, sib tov cov tshuaj nrog cov khoom siv los ua ib qho muab tshuaj txhuam, sieve los ntawm 20-mesh screen rau granulation, thiab qhuav ntawm 60℃kom txog thaum cov dej noo tsawg dua 2%.
Qhuav granulation: Rau cov khoom uas tsis ruaj khov nyob rau hauv tshav kub, txais yuav cov txheej txheem granulation qhuav, siv high - compression compression los tsim cov ntsiav tshuaj, txo lub sij hawm raug rau qhov kub thiab txias.
Txheej thev naus laus zis: Rau cov khoom siv ua kom muaj dej noo, siv hydroxypropyl methylcellulose (HPMC) zaj duab xis txheej kom cais cov dej noo thiab ncua lub txee lub neej.
Kev tswj kev ruaj ntseg: Environmental factor thiab ntim cov tswv yim
Lub stability ntawmPT-141 tabNws cuam tshuam qhov kub, av noo, thiab lub teeb. Cov kev ntsuas hauv qab no yog xav tau los tswj nws:
Kev ntsuas nrawm:Muab tso rau ntawm 40℃/ 75% RH rau 6 lub hlis, qhov kev hloov pauv hauv cov ntsiab lus, cov khoom muaj feem xyuam thiab kev sib cais tau raug kuaj pom. Cov txiaj ntsig tau pom tias cov ntsiav tshuaj uas tsis muaj coated tau dhau qhov kev txwv tsis pub dhau 3 lub hlis, thaum qhov kev ruaj ntseg ntawm cov ntsiav tshuaj coated tau zoo tuaj.
Ntim tsim:Txais ob npaug -aluminium blister ntim nrog desiccant sab hauv, tswj cov av noo hauv pob kom tsawg dua 30% RH, xyuas kom meej tias cov ntsiav tshuaj muaj lub sijhawm siv tau ntawm 24 lub hlis ntawm 25℃/ 60% RH.
Kev thauj mus los:Simulated huab cua kev thauj mus los ib puag ncig (xws li kub thiab av noo siab) kom paub tseeb tias kev ntim khoom ruaj khov, kom ntseeg tau tias cov tshuaj zoo tsis cuam tshuam.
Industrialization Challenges: Tus nqi thiab qhov zoo sib npaug
Kev lag luam ntawm PT-141 ntsiav tshuaj ntsib ob qhov kev sib tw loj:
Synthesis nqi
Tus nqi ntawm Fmoc tiv thaiv pab pawg thiab HBTU reagent nyob rau hauv cov khoom-theem synthesis yog qhov siab. Txhawm rau txo cov khoom siv raw, cov kev ua kom zoo yuav tsum tau ua kom zoo dua qub (xws li ua kom cov tshuaj tiv thaiv ntau ntxiv thiab txo lub sijhawm cov tshuaj tiv thaiv).
Kev tswj kom zoo
Lub stereoconfiguration ntawm cyclic heptapeptide muaj qhov cuam tshuam loj rau kev ua haujlwm. Kev teeb tsa ntawm lub chaw chiral yuav tsum tau saib xyuas siv HPLC-CD ua ke thev naus laus zis los xyuas kom meej qhov sib xws ntawm cov khoom siv.
Tam sim no, cov lag luam hauv tsev tau txhim kho lawv cov thev naus laus zis thiab txo cov nqi tsim khoom ntawm PT-141 ntsiav tshuaj los ntawm 40%. Lawv kuj tau txais FDA ntawv pov thawj thiab ua tiav kev xa tawm loj. Nyob rau hauv lub neej yav tom ntej, nrog rau cov kev taw qhia ntawm nruam flow synthesis technology, lub industrialization theem ntawm PT-141 yuav tsum tau ntxiv txhim kho.
PT-141 tab, ib qho melanocortin receptor (MC4R) agonist thiab tau pom muaj txiaj ntsig tshwj xeeb hauv kev kho cov poj niam hypoactive kev sib deev muaj siab tsis meej (HSDD). Cov txheej txheem tsim cov ntsiav tshuaj yuav tsum tau ua kom tau raws li ntau yam kev cai tshwj xeeb xws li cov khoom siv tshuaj, kev kho mob xav tau, thiab cov xwm txheej ntau lawm. Cov hauv qab no muab cov ncauj lus kom ntxaws los ntawm tsib yam: kev ua cov khoom siv raw, txheej txheem granulation, txheej txheem ntsiav tshuaj, txheej txheej txheej, thiab kev tswj kom zoo.
Raw Material processing
PT-141 yog cov tshuaj peptide. Nws cov khoom siv raw yog feem ntau yog cov hmoov dawb nrog cov kev xav tau purity siab, feem ntau xav tau kom ncav cuag ntau dua 98%. Ua ntej cov ntsiav tshuaj npaj, cov khoom siv raw yuav tsum tau ua kom zoo:
Crushing thiab sieving
Yog tias cov khoom siv raw yog rab koob -zoo li lossis phaj{{1} zoo li cov muaju, lawv yuav tsum tau crushed kom kov yeej qhov teeb meem ntawm kev tsis zoo. Cov khoom siv crushed yuav tsum tau dhau los ntawm lub sieve nrog qhov tsim nyog mesh kom paub meej tias qhov loj me me, uas yog qhov zoo rau cov txheej txheem granulation thiab cov ntsiav tshuaj.
Qhuav
PT-141 yog rhiab heev rau cov av noo thiab nquag nqus dej noo. Yog li ntawd, thaum lub sij hawm ua raw khoom, cov av noo ib puag ncig yuav tsum nruj me ntsis tswj. Yog tias tsim nyog, kev kho kom qhuav yuav tsum tau ua los tiv thaiv cov ntaub ntawv raw los ntawm absorbing noo noo thiab cuam tshuam rau qhov zoo thiab ruaj khov ntawm cov ntsiav tshuaj.
Txheej txheem Granulation
Granulation yog ib kauj ruam tseem ceeb hauv kev npaj cov ntsiav tshuaj, aiming kom cov fluidity thiab compressibility ntawm cov ntaub ntawv, thiab tiv thaiv stratification thiab plua plav. Rau PT-141 ntsiav tshuaj, txoj kev ntub dej granulation thiab cov ntsiav tshuaj feem ntau yog siv:
Moulding cov khoom muag:Ntxiv qhov tsim nyog ntawm cov nplaum (xws li cov hmoov txhuv nplej siab) rau cov khoom siv raw thiab sib tov kom sib npaug los tsim cov khoom muag. Tus nqi ntawm cov nplaum yuav tsum raug kho raws li cov khoom ntawm cov khoom siv raw thiab cov nyhuv granulation kom ntseeg tau tias cov av noo tsim nyog ntawm cov khoom muag, tsis ntub dhau los yog qhuav dhau.
Granulation:Xaiv ib lub mesh me me sieve thiab tsim cov khoom muag rau hauv cov khoom. Qhov loj thiab kev faib tawm ntawm cov khoom muaj feem cuam tshuam rau qhov zoo ntawm cov ntsiav tshuaj, yog li ntau yam tsis muaj nyob rau hauv cov txheej txheem granulation yuav tsum tau tswj nruj me ntsis.
Kev ziab:Qhuav cov khoom tsim kom tshem tawm cov dej noo ntau dhau. Lub ziab ziab yuav tsum tau hloov kho raws li kev ruaj ntseg ntawm cov tshuaj, feem ntau tswj ntawm 50-60℃los tiv thaiv cov tshuaj degradation. Cov dej noo ntawm cov khoom qhuav yuav tsum tswj ntawm 1% thiab 3%, ntau dhau lossis tsawg dhau yuav cuam tshuam rau cov ntsiav tshuaj zoo.
Granulation:Ntxiv ib qho tsim nyog tus nqi ntawm disintegrant thiab lubricant rau qhuav hais, sib tov lawv tusyees, thiab ces ua granulation. Lub disintegrant tuaj yeem txhawb kev tawg sai ntawm cov ntsiav tshuaj hauv lub cev, txhawb kev tso tawm thiab nqus ntawm cov tshuaj; cov roj nplua nyeem tuaj yeem txo qhov kev sib txhuam ntawm cov ntsiav tshuaj thiab cov pwm, ua kom yooj yim rau kev tshem tawm ntawm cov ntsiav tshuaj.
Ntsiav tshuaj nias txheej txheem
Cov ntsiav tshuaj nias yog txheej txheem ntawm compressing cov khoom npaj rau hauv cov ntsiav tshuaj los ntawm sab nraud siab. Rau PT-141 ntsiav tshuaj, cov ntsiab lus hauv qab no yuav tsum raug sau tseg:
Xaiv cov ntsiav tshuaj xovxwm
Xaiv ib lub ntsiav tshuaj xovxwm uas tsim nyog raws li qhov teev ntau lawm thiab cov ntsiav tshuaj specifications. Cov ntsiav tshuaj xovxwm yuav tsum muaj qhov ruaj khov siab tswj qhov system thiab ntsuas cov cuab yeej meej kom ntseeg tau tias kev ruaj ntseg ntawm cov ntsiav tshuaj zoo.
Kev tswj siab
Thaum lub sij hawm lub ntsiav tshuaj nias txheej txheem, lub siab yuav tsum tau nruj me ntsis tswj xyuas kom meej tias lub hardness thiab friability ntawm cov ntsiav tshuaj raws li qhov yuav tsum tau. Kev ntxhov siab ntau dhau yuav ua rau cov ntsiav tshuaj nyuaj dhau thiab nce friability; Lub siab me me yuav ua rau cov ntsiav tshuaj xoob thiab nquag tawg.
Qhov tshwm sim ntawm cov ntsiav tshuaj
Thaum lub sij hawm lub ntsiav tshuaj nias txheej txheem, yuav tsum tau them nyiaj mloog mus rau kev soj ntsuam cov tsos zoo ntawm cov ntsiav tshuaj, xws li seb lub nto yog du, seb puas muaj tej tawg los yog me ntsis. Cov ntsiav tshuaj uas tsis ua raws li qhov yuav tsum tau muab tshem tawm sai sai thiab rov- nias.
Txheej txheej txheej
Txheej tuaj yeem txhim kho cov tsos ntawm cov ntsiav tshuaj, npog cov ntxhiab tsw tsw qab, txhim khu kev ruaj ntseg ntawm cov tshuaj, lossis tswj qhov tso tawm ntawm cov tshuaj. RauPT-141 tab, txheej txheej txheej txheej tsim nyog tuaj yeem xaiv raws li xav tau:
Zaj duab xis txheej
Cov txheej txheem txheej txheej zaj duab xis tuaj yeem tsim cov yeeb yaj kiab tsis sib xws ntawm cov ntsiav tshuaj, txhim kho cov tsos thiab saj ntawm cov ntsiav tshuaj. Cov khoom siv zaj duab xis txheej yuav tsum muaj cov yeeb yaj kiab zoo - tsim cov khoom, ruaj khov thiab kev nyab xeeb.
Enteric txheej
Yog hais tias PT-141 yog yooj yim degraded nyob rau hauv gastric acid los yog muaj irritant los ntawm lub plab mucosa, enteric txheej tshuab yuav siv tau los pab kom cov ntsiav tshuaj tso tawm cov tshuaj nyob rau hauv txoj hnyuv. Cov khoom siv txheej txheej enteric yuav tsum muaj cov yam ntxwv ntawm kev tawm tsam gastric acid thiab yaj hauv cov hnyuv.
Kev Tswj Xyuas Zoo
Thaum lub sij hawm npaj ntawm PT-141 ntsiav tshuaj, kev tswj xyuas nruj heev yuav tsum tau ua kom muaj kev ruaj ntseg ntawm cov ntsiav tshuaj zoo:
Raw khoom zoo tswj
Ua nruj soj ntsuam thiab tswj cov ntsuas xws li purity, noo noo cov ntsiab lus, thiab particle loj ntawm raw cov ntaub ntawv.
Intermediate khoom tswj kom zoo
Ua kev ntsuam xyuas zoo thiab tswj cov khoom nruab nrab xws li cov ntaub ntawv mos thiab granules thaum lub sij hawm granulation txheej txheem.
Kev tswj cov khoom tiav tiav
Ntsuas thiab tswj cov ntsuas xws li cov tsos, hardness, friability, thiab cov ntsiab lus uniformity ntawm cov ntsiav tshuaj tom qab nias. Nyob rau tib lub sijhawm, kev ntsuas kev ruaj ntseg yuav tsum tau ua los ntsuas qhov kev hloov pauv zoo ntawm cov ntsiav tshuaj thaum khaws cia.
FAQ
1. Puas yog PT-141 ntsiav tshuaj muaj txiaj ntsig zoo?
Vim nws qhov xwm txheej peptide, lub qhov ncauj bioavailability yog qhov tsawg heev (feem ntau <2%), thiab feem ntau cov kev tshawb fawb tau pom zoo tias nws cov ntsiav tshuaj daim ntawv tsis zoo. Cov ntaub ntawv qhia txog kev ua tau zoo nyob hauv kev ua lag luam yuav yog vim muaj cov txiaj ntsig ntawm cov placebo, kev tsim khoom tsis zoo, lossis kev nkag siab ntawm tus kheej.
2. Dab tsi yog qhov txawv ntawm nws thiab "Viagra" hom tshuaj?
Lub hauv paus mechanisms txawv kiag li. "Viagra" thiab lwm yam PDE5 inhibitors ua rau cov hlab ntsha los txhim kho cov ntshav; PT-141 ua rau melanocortin receptors nyob rau hauv lub hlwb lub hauv paus cheeb tsam, aiming tswj kev sib deev muaj siab thiab arousal. Lub qub yog zoo li "tswj cav", thaum lub tom kawg yog zoo li "ignition switch".
3. Dab tsi yog qhov txaus ntshai cuam tshuam nrog kev siv PT-141 ntsiav tshuaj?
Cov kev pheej hmoo tseem ceeb yog raws li hauv qab no: Ua ntej, cov khoom tsis raug tswj thiab nws cov purity thiab ntau npaum li cas tsis tau lees paub, thiab nws yuav muaj teeb meem impurities. Qhov thib ob, nws tuaj yeem ua rau muaj kev phiv zoo ib yam li cov tshuaj txhaj (xws li xeev siab thiab ntshav siab), tab sis vim yog cov tshuaj uas tswj tsis tau, cov kev pheej hmoo nyuaj rau kwv yees. Thib peb, nws yuav ncua kev kuaj mob thiab kho cov kab mob tsis tu ncua.
Cim npe nrov: pt-141 ntsiav tshuaj, Tuam Tshoj pt-141 ntsiav tshuaj manufacturers, lwm tus neeg
